eventespresso / event-espresso-core

core/db_classes/EE_Price_Type.class.php

Indentation +272 added lines, -272 removed lines

@@ -12,276 +12,276 @@
  */
 class EE_Price_Type extends EE_Soft_Delete_Base_Class
 {
-    /**
-     * @param array $props_n_values
-     * @return EE_Price_Type
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public static function new_instance($props_n_values = array())
-    {
-        $has_object = parent::_check_for_object($props_n_values, __CLASS__);
-        return $has_object ? $has_object : new self($props_n_values);
-    }
-
-
-    /**
-     * @param array $props_n_values
-     * @return EE_Price_Type
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public static function new_instance_from_db($props_n_values = array())
-    {
-        return new self($props_n_values, true);
-    }
-
-
-    /**
-     * Set Price Type Name
-     *
-     * @param string $PRT_name
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function set_name(string $PRT_name = '')
-    {
-        $this->set('PRT_name', $PRT_name);
-    }
-
-
-    /**
-     * Set Price Type a percent
-     *
-     * @param bool $PRT_is_percent
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function set_is_percent($PRT_is_percent = false)
-    {
-        $this->set('PRT_is_percent', $PRT_is_percent);
-    }
-
-
-    /**
-     * Set Price Type order
-     *
-     * @param int $PRT_order
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function set_order($PRT_order = 0)
-    {
-        $this->set('PRT_order', $PRT_order);
-    }
-
-
-    /**
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public function move_to_trash()
-    {
-        $this->set('PRT_deleted', true);
-    }
-
-
-    /**
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public function restore_from_trash()
-    {
-        $this->set('PRT_deleted', false);
-    }
-
-
-    /**
-     * get Price Type Name
-     *
-     * @return string
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public function name(): string
-    {
-        return (string) $this->get('PRT_name');
-    }
-
-
-    /**
-     * get base Price Type
-     *
-     * @return int
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public function base_type(): int
-    {
-        return (int) $this->get('PBT_ID');
-    }
-
-
-    /**
-     * @return string
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function base_type_name(): string
-    {
-        return (string) $this->get_pretty('PBT_ID');
-    }
-
-
-    /**
-     * get is Price Type a percent?
-     *
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public function is_base_price(): bool
-    {
-        return $this->get('PBT_ID') === EEM_Price_Type::base_type_base_price;
-    }
-
-
-    /**
-     * get is Price Type a percent?
-     *
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public function is_percent(): bool
-    {
-        return (bool) $this->get('PRT_is_percent');
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function is_discount(): bool
-    {
-        return $this->get('PBT_ID') === EEM_Price_Type::base_type_discount;
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function is_surcharge(): bool
-    {
-        return $this->get('PBT_ID') === EEM_Price_Type::base_type_surcharge;
-    }
-
-
-    /**
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function is_tax(): bool
-    {
-        return $this->get('PBT_ID') === EEM_Price_Type::base_type_tax;
-    }
-
-
-    /**
-     * get the author of the price type.
-     *
-     * @return int
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @since 4.5.0
-     */
-    public function wp_user(): int
-    {
-        return (int) $this->get('PRT_wp_user');
-    }
-
-
-    /**
-     * get Price Type order
-     *
-     * @return int
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public function order(): int
-    {
-        return (int) $this->get('PRT_order');
-    }
-
-
-    /**
-     * get  is Price Type deleted ?
-     *
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public function deleted(): bool
-    {
-        return (bool) $this->get('PRT_deleted');
-    }
+	/**
+	 * @param array $props_n_values
+	 * @return EE_Price_Type
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public static function new_instance($props_n_values = array())
+	{
+		$has_object = parent::_check_for_object($props_n_values, __CLASS__);
+		return $has_object ? $has_object : new self($props_n_values);
+	}
+
+
+	/**
+	 * @param array $props_n_values
+	 * @return EE_Price_Type
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public static function new_instance_from_db($props_n_values = array())
+	{
+		return new self($props_n_values, true);
+	}
+
+
+	/**
+	 * Set Price Type Name
+	 *
+	 * @param string $PRT_name
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function set_name(string $PRT_name = '')
+	{
+		$this->set('PRT_name', $PRT_name);
+	}
+
+
+	/**
+	 * Set Price Type a percent
+	 *
+	 * @param bool $PRT_is_percent
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function set_is_percent($PRT_is_percent = false)
+	{
+		$this->set('PRT_is_percent', $PRT_is_percent);
+	}
+
+
+	/**
+	 * Set Price Type order
+	 *
+	 * @param int $PRT_order
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function set_order($PRT_order = 0)
+	{
+		$this->set('PRT_order', $PRT_order);
+	}
+
+
+	/**
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public function move_to_trash()
+	{
+		$this->set('PRT_deleted', true);
+	}
+
+
+	/**
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public function restore_from_trash()
+	{
+		$this->set('PRT_deleted', false);
+	}
+
+
+	/**
+	 * get Price Type Name
+	 *
+	 * @return string
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public function name(): string
+	{
+		return (string) $this->get('PRT_name');
+	}
+
+
+	/**
+	 * get base Price Type
+	 *
+	 * @return int
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public function base_type(): int
+	{
+		return (int) $this->get('PBT_ID');
+	}
+
+
+	/**
+	 * @return string
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function base_type_name(): string
+	{
+		return (string) $this->get_pretty('PBT_ID');
+	}
+
+
+	/**
+	 * get is Price Type a percent?
+	 *
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public function is_base_price(): bool
+	{
+		return $this->get('PBT_ID') === EEM_Price_Type::base_type_base_price;
+	}
+
+
+	/**
+	 * get is Price Type a percent?
+	 *
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public function is_percent(): bool
+	{
+		return (bool) $this->get('PRT_is_percent');
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function is_discount(): bool
+	{
+		return $this->get('PBT_ID') === EEM_Price_Type::base_type_discount;
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function is_surcharge(): bool
+	{
+		return $this->get('PBT_ID') === EEM_Price_Type::base_type_surcharge;
+	}
+
+
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function is_tax(): bool
+	{
+		return $this->get('PBT_ID') === EEM_Price_Type::base_type_tax;
+	}
+
+
+	/**
+	 * get the author of the price type.
+	 *
+	 * @return int
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @since 4.5.0
+	 */
+	public function wp_user(): int
+	{
+		return (int) $this->get('PRT_wp_user');
+	}
+
+
+	/**
+	 * get Price Type order
+	 *
+	 * @return int
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public function order(): int
+	{
+		return (int) $this->get('PRT_order');
+	}
+
+
+	/**
+	 * get  is Price Type deleted ?
+	 *
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public function deleted(): bool
+	{
+		return (bool) $this->get('PRT_deleted');
+	}
 }

core/EE_System.core.php

Indentation +1225 added lines, -1225 removed lines

@@ -30,1230 +30,1230 @@
  */
 final class EE_System implements ResettableInterface
 {
+	/**
+	 * indicates this is a 'normal' request. Ie, not activation, nor upgrade, nor activation.
+	 * So examples of this would be a normal GET request on the frontend or backend, or a POST, etc
+	 */
+	const req_type_normal = 0;
+
+	/**
+	 * Indicates this is a brand new installation of EE so we should install
+	 * tables and default data etc
+	 */
+	const req_type_new_activation = 1;
+
+	/**
+	 * we've detected that EE has been reactivated (or EE was activated during maintenance mode,
+	 * and we just exited maintenance mode). We MUST check the database is setup properly
+	 * and that default data is setup too
+	 */
+	const req_type_reactivation = 2;
+
+	/**
+	 * indicates that EE has been upgraded since its previous request.
+	 * We may have data migration scripts to call and will want to trigger maintenance mode
+	 */
+	const req_type_upgrade = 3;
+
+	/**
+	 * TODO  will detect that EE has been DOWNGRADED. We probably don't want to run in this case...
+	 */
+	const req_type_downgrade = 4;
+
+	/**
+	 * @deprecated since version 4.6.0.dev.006
+	 * Now whenever a new_activation is detected the request type is still just
+	 * new_activation (same for reactivation, upgrade, downgrade etc), but if we're in maintenance mode
+	 * EE_System::initialize_db_if_no_migrations_required and EE_Addon::initialize_db_if_no_migrations_required
+	 * will instead enqueue that EE plugin's db initialization for when we're taken out of maintenance mode.
+	 * (Specifically, when the migration manager indicates migrations are finished
+	 * EE_Data_Migration_Manager::initialize_db_for_enqueued_ee_plugins() will be called)
+	 */
+	const req_type_activation_but_not_installed = 5;
+
+	/**
+	 * option prefix for recording the activation history (like core's "espresso_db_update") of addons
+	 */
+	const addon_activation_history_option_prefix = 'ee_addon_activation_history_';
+
+	private static ?EE_System $_instance = null;
+
+	private ?LoaderInterface $loader;
+
+	private ?EE_Maintenance_Mode $maintenance_mode;
+
+	private ?EE_Registry $registry;
+
+	private ?RequestInterface $request;
+
+	private Router $router;
+
+	private ?AddonManager $addon_manager = null;
+
+	private ?EE_Capabilities $capabilities = null;
+
+	protected ?FeatureFlags $feature = null;
+
+	private ?RegisterCustomPostTypes $register_custom_post_types = null;
+
+	private ?RegisterCustomTaxonomies $register_custom_taxonomies = null;
+
+	private ?RegisterCustomTaxonomyTerms $register_custom_taxonomy_terms = null;
+
+	/**
+	 * Stores which type of request this is, options being one of the constants on EE_System starting with req_type_*.
+	 * It can be a brand-new activation, a reactivation, an upgrade, a downgrade, or a normal request.
+	 */
+	private ?int $_req_type = null;
+
+	/**
+	 * Whether or not there was a non-micro version change in EE core version during this request
+	 */
+	private bool $_major_version_change = false;
+
+
+	/**
+	 * @singleton method used to instantiate class object
+	 * @param LoaderInterface|null     $loader
+	 * @param EE_Maintenance_Mode|null $maintenance_mode
+	 * @param EE_Registry|null         $registry
+	 * @param RequestInterface|null    $request
+	 * @param Router|null              $router
+	 * @param FeatureFlags|null        $feature
+	 * @return EE_System
+	 */
+	public static function instance(
+		?LoaderInterface $loader = null,
+		?EE_Maintenance_Mode $maintenance_mode = null,
+		?EE_Registry $registry = null,
+		?RequestInterface $request = null,
+		?Router $router = null,
+		?FeatureFlags $feature = null
+	): EE_System {
+		// check if class object is instantiated
+		if (! self::$_instance instanceof EE_System) {
+			self::$_instance = new self($loader, $maintenance_mode, $registry, $request, $router, $feature);
+		}
+		return self::$_instance;
+	}
+
+
+	/**
+	 * resets the instance and returns it
+	 *
+	 * @return EE_System
+	 */
+	public static function reset(): EE_System
+	{
+		self::$_instance->_req_type = null;
+		// make sure none of the old hooks are left hanging around
+		remove_all_actions('AHEE__EE_System__perform_activations_upgrades_and_migrations');
+		// we need to reset the migration manager in order for it to detect DMSs properly
+		EE_Data_Migration_Manager::reset();
+		self::instance()->detect_activations_or_upgrades();
+		self::instance()->perform_activations_upgrades_and_migrations();
+		return self::instance();
+	}
+
+
+	/**
+	 * sets hooks for running rest of system
+	 * provides "AHEE__EE_System__construct__complete" hook for EE Addons to use as their starting point
+	 * starting EE Addons from any other point may lead to problems
+	 *
+	 * @param LoaderInterface     $loader
+	 * @param EE_Maintenance_Mode $maintenance_mode
+	 * @param EE_Registry         $registry
+	 * @param RequestInterface    $request
+	 * @param Router              $router
+	 * @param FeatureFlags        $feature
+	 */
+	private function __construct(
+		LoaderInterface $loader,
+		EE_Maintenance_Mode $maintenance_mode,
+		EE_Registry $registry,
+		RequestInterface $request,
+		Router $router,
+		FeatureFlags $feature
+	) {
+		$this->registry         = $registry;
+		$this->loader           = $loader;
+		$this->request          = $request;
+		$this->router           = $router;
+		$this->maintenance_mode = $maintenance_mode;
+		$this->feature          = $feature;
+		do_action('AHEE__EE_System__construct__begin', $this);
+		add_action(
+			'AHEE__EE_Bootstrap__load_espresso_addons',
+			[$this, 'loadWpGraphQL'],
+			3
+		);
+		add_action(
+			'AHEE__EE_Bootstrap__load_espresso_addons',
+			[$this, 'loadCapabilities'],
+			5
+		);
+		add_action(
+			'AHEE__EE_Bootstrap__load_espresso_addons',
+			[$this, 'loadCommandBus'],
+			7
+		);
+		add_action(
+			'AHEE__EE_Bootstrap__load_espresso_addons',
+			[$this, 'loadPluginApi'],
+			9
+		);
+		// give caff stuff a chance to play during the activation process too.
+		add_action(
+			'AHEE__EE_Bootstrap__load_espresso_addons',
+			[$this, 'brewCaffeinated'],
+			9
+		);
+		// allow addons to load first so that they can register autoloaders, set hooks for running DMS's, etc
+		add_action(
+			'AHEE__EE_Bootstrap__load_espresso_addons',
+			[$this, 'load_espresso_addons']
+		);
+		// when an ee addon is activated, we want to call the core hook(s) again
+		// because the newly-activated addon didn't get a chance to run at all
+		add_action('activate_plugin', [$this, 'load_espresso_addons'], 1);
+		// detect whether install or upgrade
+		add_action(
+			'AHEE__EE_Bootstrap__detect_activations_or_upgrades',
+			[$this, 'detect_activations_or_upgrades'],
+			3
+		);
+		// load EE_Config, EE_Textdomain, etc
+		add_action(
+			'AHEE__EE_Bootstrap__load_core_configuration',
+			[$this, 'load_core_configuration'],
+			5
+		);
+		// load specifications for matching routes to current request
+		add_action(
+			'AHEE__EE_Bootstrap__load_core_configuration',
+			[$this, 'loadRouteMatchSpecifications']
+		);
+		// load specifications for custom post types
+		add_action(
+			'AHEE__EE_Bootstrap__load_core_configuration',
+			[$this, 'loadCustomPostTypes']
+		);
+		// load specifications for custom post types
+		add_action(
+			'AHEE__EE_Bootstrap__load_core_configuration',
+			[$this, 'loadCustomPostTypes']
+		);
+		// load EE_Config, EE_Textdomain, etc
+		add_action(
+			'AHEE__EE_Bootstrap__register_shortcodes_modules_and_widgets',
+			[$this, 'register_shortcodes_modules_and_widgets'],
+			7
+		);
+		// you wanna get going? I wanna get going... let's get going!
+		add_action(
+			'AHEE__EE_Bootstrap__brew_espresso',
+			[$this, 'brew_espresso'],
+			9
+		);
+		// other housekeeping
+		// exclude EE critical pages from wp_list_pages
+		add_filter(
+			'wp_list_pages_excludes',
+			[$this, 'remove_pages_from_wp_list_pages'],
+			10
+		);
+		// ALL EE Addons should use the following hook point to attach their initial setup too
+		// it's extremely important for EE Addons to register any class autoloaders so that they can be available when the EE_Config loads
+		do_action('AHEE__EE_System__construct__complete', $this);
+	}
+
+
+	/**
+	 * load and setup EE_Capabilities
+	 *
+	 * @return void
+	 */
+	public function loadWpGraphQL()
+	{
+		espressoLoadWpGraphQL();
+	}
+
+
+	/**
+	 * load and setup EE_Capabilities
+	 *
+	 * @return void
+	 */
+	public function loadCapabilities()
+	{
+		$this->capabilities = $this->loader->getShared('EE_Capabilities');
+	}
+
+
+	/**
+	 * create and cache the CommandBus, and also add middleware
+	 * The CapChecker middleware requires the use of EE_Capabilities
+	 * which is why we need to load the CommandBus after Caps are set up
+	 * CommandBus middleware operate FIFO - First In First Out
+	 * so LocateMovedCommands will run first in order to return any new commands
+	 *
+	 * @return void
+	 */
+	public function loadCommandBus()
+	{
+		$this->loader->getShared(
+			'CommandBusInterface',
+			[
+				null,
+				apply_filters(
+					'FHEE__EE_Load_Espresso_Core__handle_request__CommandBus_middleware',
+					[
+						$this->loader->getShared('EventEspresso\core\services\commands\middleware\LocateMovedCommands'),
+						$this->loader->getShared('EventEspresso\core\services\commands\middleware\CapChecker'),
+						$this->loader->getShared('EventEspresso\core\services\commands\middleware\AddActionHook'),
+					]
+				),
+			]
+		);
+	}
+
+
+	/**
+	 * @return void
+	 * @throws Exception
+	 */
+	public function loadPluginApi()
+	{
+		$this->addon_manager = $this->loader->getShared(AddonManager::class);
+		$this->addon_manager->initialize();
+		$this->loader->getShared('EE_Request_Handler');
+	}
+
+
+	/**
+	 * The purpose of this method is to simply check for a file named "caffeinated/brewing_regular.php" for any hooks
+	 * that need to be setup before our EE_System launches.
+	 *
+	 * @return void
+	 * @throws DomainException
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidClassException
+	 * @throws InvalidFilePathException
+	 * @throws EE_Error
+	 */
+	public function brewCaffeinated()
+	{
+		static $brew;
+		/** @var Domain $domain */
+		$domain = DomainFactory::getEventEspressoCoreDomain();
+		if ($domain->isCaffeinated() && ! $brew instanceof EE_Brewing_Regular) {
+			require_once EE_CAFF_PATH . 'brewing_regular.php';
+			/** @var EE_Brewing_Regular $brew */
+			$brew = LoaderFactory::getLoader()->getShared(EE_Brewing_Regular::class);
+			if (! $this->feature->allowed('use_edd_plugin_licensing')) {
+				$brew->initializePUE();
+			}
+			add_action(
+				'AHEE__EE_System__load_core_configuration__begin',
+				[$brew, 'caffeinated']
+			);
+		}
+	}
+
+
+	/**
+	 * load_espresso_addons
+	 * allow addons to load first so that they can set hooks for running DMS's, etc
+	 * this is hooked into both:
+	 *    'AHEE__EE_Bootstrap__load_core_configuration'
+	 *        which runs during the WP 'plugins_loaded' action at priority 5
+	 *    and the WP 'activate_plugin' hook point
+	 *
+	 * @return void
+	 * @throws Exception
+	 * @throws Throwable
+	 */
+	public function load_espresso_addons()
+	{
+		if ($this->feature->allowed('use_edd_plugin_licensing')) {
+			new EventEspresso\core\services\licensing\PluginLicense(
+				EVENT_ESPRESSO_MAIN_FILE,
+				0,
+				'Event Espresso Core',
+				'event_espresso_core',
+				espresso_version()
+			);
+		}
+		// looking for hooks? they've been moved into the AddonManager to maintain compatibility
+		$this->addon_manager->loadAddons();
+	}
+
+
+	/**
+	 * detect_activations_or_upgrades
+	 * Checks for activation or upgrade of core first;
+	 * then also checks if any registered addons have been activated or upgraded
+	 * This is hooked into 'AHEE__EE_Bootstrap__detect_activations_or_upgrades'
+	 * which runs during the WP 'plugins_loaded' action at priority 3
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public function detect_activations_or_upgrades()
+	{
+		// first off: let's make sure to handle core
+		$this->detect_if_activation_or_upgrade();
+		foreach ($this->registry->addons as $addon) {
+			if ($addon instanceof EE_Addon) {
+				// detect teh request type for that addon
+				$addon->detect_req_type();
+			}
+		}
+	}
+
+
+	/**
+	 * detect_if_activation_or_upgrade
+	 * Takes care of detecting whether this is a brand new install or code upgrade,
+	 * and either setting up the DB or setting up maintenance mode etc.
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public function detect_if_activation_or_upgrade()
+	{
+		do_action('AHEE__EE_System___detect_if_activation_or_upgrade__begin');
+		// check if db has been updated, or if its a brand-new installation
+		$espresso_db_update = $this->fix_espresso_db_upgrade_option();
+		$request_type       = $this->detect_req_type($espresso_db_update);
+		switch ($request_type) {
+			case EE_System::req_type_new_activation:
+				do_action('AHEE__EE_System__detect_if_activation_or_upgrade__new_activation');
+				$this->_handle_core_version_change($espresso_db_update);
+				break;
+			case EE_System::req_type_reactivation:
+				do_action('AHEE__EE_System__detect_if_activation_or_upgrade__reactivation');
+				$this->_handle_core_version_change($espresso_db_update);
+				break;
+			case EE_System::req_type_upgrade:
+				do_action('AHEE__EE_System__detect_if_activation_or_upgrade__upgrade');
+				// migrations may be required now that we've upgraded
+				$this->maintenance_mode->set_maintenance_mode_if_db_old();
+				$this->_handle_core_version_change($espresso_db_update);
+				break;
+			case EE_System::req_type_downgrade:
+				do_action('AHEE__EE_System__detect_if_activation_or_upgrade__downgrade');
+				// its possible migrations are no longer required
+				$this->maintenance_mode->set_maintenance_mode_if_db_old();
+				$this->_handle_core_version_change($espresso_db_update);
+				break;
+			case EE_System::req_type_normal:
+			default:
+				break;
+		}
+		do_action('AHEE__EE_System__detect_if_activation_or_upgrade__complete');
+	}
+
+
+	/**
+	 * Updates the list of installed versions and sets hooks for
+	 * initializing the database later during the request
+	 *
+	 * @param array $espresso_db_update
+	 */
+	private function _handle_core_version_change(array $espresso_db_update)
+	{
+		$this->update_list_of_installed_versions($espresso_db_update);
+		// get ready to verify the DB is ok (provided we aren't in maintenance mode, of course)
+		add_action(
+			'AHEE__EE_System__perform_activations_upgrades_and_migrations',
+			[$this, 'initialize_db_if_no_migrations_required']
+		);
+	}
+
+
+	/**
+	 * standardizes the wp option 'espresso_db_upgrade' which actually stores
+	 * information about what versions of EE have been installed and activated,
+	 * NOT necessarily the state of the database
+	 *
+	 * @param mixed $espresso_db_update           the value of the WordPress option.
+	 *                                            If not supplied, fetches it from the options table
+	 * @return array the correct value of 'espresso_db_upgrade', after saving it, if it needed correction
+	 */
+	private function fix_espresso_db_upgrade_option($espresso_db_update = null): array
+	{
+		do_action('FHEE__EE_System__manage_fix_espresso_db_upgrade_option__begin', $espresso_db_update);
+		if (! $espresso_db_update) {
+			$espresso_db_update = get_option('espresso_db_update');
+		}
+		// check that option is an array
+		if (! is_array($espresso_db_update)) {
+			// if option is FALSE, then it never existed
+			if ($espresso_db_update === false) {
+				// make $espresso_db_update an array and save option with autoload OFF
+				$espresso_db_update = [];
+				add_option('espresso_db_update', $espresso_db_update, '', 'no');
+			} else {
+				// option is NOT FALSE but also is NOT an array, so make it an array and save it
+				$espresso_db_update = [$espresso_db_update => []];
+				update_option('espresso_db_update', $espresso_db_update);
+			}
+		} else {
+			$corrected_db_update = [];
+			// if IS an array, but is it an array where KEYS are version numbers, and values are arrays?
+			foreach ($espresso_db_update as $should_be_version_string => $should_be_array) {
+				if (is_int($should_be_version_string) && ! is_array($should_be_array)) {
+					// the key is an int, and the value IS NOT an array
+					// so it must be numerically-indexed, where values are versions installed...
+					// fix it!
+					$version_string                         = $should_be_array;
+					$corrected_db_update[ $version_string ] = ['unknown-date'];
+				} else {
+					// ok it checks out
+					$corrected_db_update[ $should_be_version_string ] = $should_be_array;
+				}
+			}
+			$espresso_db_update = $corrected_db_update;
+			update_option('espresso_db_update', $espresso_db_update);
+		}
+		do_action('FHEE__EE_System__manage_fix_espresso_db_upgrade_option__complete', $espresso_db_update);
+		return ! empty($espresso_db_update)
+			? $espresso_db_update
+			: [];
+	}
+
+
+	/**
+	 * Does the traditional work of setting up the plugin's database and adding default data.
+	 * If migration script/process did not exist, this is what would happen on every activation/reactivation/upgrade.
+	 * NOTE: if we're in maintenance mode (which would be the case if we detect there are data
+	 * migration scripts that need to be run and a version change happens), enqueues core for database initialization,
+	 * so that it will be done when migrations are finished
+	 *
+	 * @param boolean $initialize_addons_too if true, we double-check addons' database tables etc too;
+	 * @param boolean $verify_schema         if true will re-check the database tables have the correct schema.
+	 *                                       This is a resource-intensive job
+	 *                                       so we prefer to only do it when necessary
+	 * @return void
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public function initialize_db_if_no_migrations_required($initialize_addons_too = false, $verify_schema = true)
+	{
+		$request_type = $this->detect_req_type();
+		// only initialize system if we're not in maintenance mode.
+		if (! MaintenanceStatus::isFullSite()) {
+			/** @var EventEspresso\core\domain\services\custom_post_types\RewriteRules $rewrite_rules */
+			$rewrite_rules = $this->loader->getShared(
+				'EventEspresso\core\domain\services\custom_post_types\RewriteRules'
+			);
+			$rewrite_rules->flush();
+			if ($verify_schema) {
+				EEH_Activation::initialize_db_and_folders();
+			}
+			EEH_Activation::initialize_db_content();
+			EEH_Activation::system_initialization();
+			if ($initialize_addons_too) {
+				$this->initialize_addons();
+			}
+		} else {
+			EE_Data_Migration_Manager::instance()->enqueue_db_initialization_for('Core');
+		}
+		if (
+			$request_type === EE_System::req_type_new_activation
+			|| $request_type === EE_System::req_type_reactivation
+			|| (
+				$request_type === EE_System::req_type_upgrade
+				&& $this->is_major_version_change()
+			)
+		) {
+			add_action('AHEE__EE_System__initialize_last', [$this, 'redirect_to_about_ee'], 9);
+		}
+	}
+
+
+	/**
+	 * Initializes the db for all registered addons
+	 *
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public function initialize_addons()
+	{
+		// foreach registered addon, make sure its db is up-to-date too
+		foreach ($this->registry->addons as $addon) {
+			if ($addon instanceof EE_Addon) {
+				$addon->initialize_db_if_no_migrations_required();
+			}
+		}
+	}
+
+
+	/**
+	 * Adds the current code version to the saved wp option which stores a list of all ee versions ever installed.
+	 *
+	 * @param array  $version_history
+	 * @param string $current_version_to_add version to be added to the version history
+	 * @return    boolean success as to whether or not this option was changed
+	 */
+	public function update_list_of_installed_versions($version_history = null, $current_version_to_add = null): bool
+	{
+		if (! $version_history) {
+			$version_history = $this->fix_espresso_db_upgrade_option($version_history);
+		}
+		if ($current_version_to_add === null) {
+			$current_version_to_add = espresso_version();
+		}
+		$version_history[ $current_version_to_add ][] = date('Y-m-d H:i:s', time());
+		// re-save
+		return update_option('espresso_db_update', $version_history);
+	}
+
+
+	/**
+	 * Detects if the current version indicated in the has existed in the list of
+	 * previously-installed versions of EE (espresso_db_update). Does NOT modify it (ie, no side-effect)
+	 *
+	 * @param array|null $espresso_db_update array from the wp option stored under the name 'espresso_db_update'.
+	 *                                       If not supplied, fetches it from the options table.
+	 *                                       Also, caches its result so later parts of the code can also know whether
+	 *                                       there's been an update or not. This way we can add the current version to
+	 *                                       espresso_db_update, but still know if this is a new install or not
+	 * @return int one of the constants on EE_System::req_type_
+	 */
+	public function detect_req_type(?array $espresso_db_update = null): int
+	{
+		if ($this->_req_type === null) {
+			$espresso_db_update          = ! empty($espresso_db_update)
+				? $espresso_db_update
+				: $this->fix_espresso_db_upgrade_option();
+			$this->_req_type             = EE_System::detect_req_type_given_activation_history(
+				$espresso_db_update,
+				'ee_espresso_activation',
+				espresso_version()
+			);
+			$this->_major_version_change = $this->_detect_major_version_change($espresso_db_update);
+			$this->request->setIsActivation($this->_req_type !== EE_System::req_type_normal);
+		}
+		return $this->_req_type;
+	}
+
+
+	/**
+	 * Returns whether or not there was a non-micro version change (ie, change in either
+	 * the first or second number in the version. Eg 4.9.0.rc.001 to 4.10.0.rc.000,
+	 * but not 4.9.0.rc.0001 to 4.9.1.rc.0001
+	 *
+	 * @param $activation_history
+	 * @return bool
+	 */
+	private function _detect_major_version_change($activation_history): bool
+	{
+		$previous_version       = EE_System::getMostRecentlyActiveVersion($activation_history);
+		$previous_version_parts = explode('.', $previous_version);
+		$current_version_parts  = explode('.', espresso_version());
+		return isset(
+				   $previous_version_parts[0],
+				   $previous_version_parts[1],
+				   $current_version_parts[0],
+				   $current_version_parts[1]
+			   ) && (
+				   $previous_version_parts[0] !== $current_version_parts[0]
+				   || $previous_version_parts[1] !== $current_version_parts[1]
+			   );
+	}
+
+
+	/**
+	 * Returns true if either the major or minor version of EE changed during this request.
+	 * Eg 4.9.0.rc.001 to 4.10.0.rc.000, but not 4.9.0.rc.0001 to 4.9.1.rc.0001
+	 *
+	 * @return bool
+	 */
+	public function is_major_version_change(): bool
+	{
+		return $this->_major_version_change;
+	}
+
+
+	/**
+	 * Determines the request type for any ee addon, given three piece of info: the current array of activation
+	 * histories (for core that' 'espresso_db_update' wp option); the name of the WordPress option which is temporarily
+	 * set upon activation of the plugin (for core it's 'ee_espresso_activation'); and the version that this plugin was
+	 * just activated to (for core that will always be espresso_version())
+	 *
+	 * @param array|null $activation_history               the option's value which stores the activation history for
+	 *                                                     this
+	 *                                                     ee plugin. for core that's 'espresso_db_update'
+	 * @param string     $activation_indicator_option_name the name of the WordPress option that is temporarily set to
+	 *                                                     indicate that this plugin was just activated
+	 * @param string     $current_version                  the version that was just upgraded to (for core that will be
+	 *                                                     espresso_version())
+	 * @return int one of the constants on EE_System::req_type_
+	 */
+	public static function detect_req_type_given_activation_history(
+		array $activation_history,
+		string $activation_indicator_option_name,
+		string $current_version
+	): int {
+		$version_change = self::compareVersionWithPrevious($activation_history, $current_version);
+		$is_activation  = get_option($activation_indicator_option_name, false);
+		$req_type       = self::getRequestType($activation_history, $version_change, $is_activation);
+		if ($is_activation) {
+			// cleanup in aisle 6
+			delete_option($activation_indicator_option_name);
+		}
+		return $req_type;
+	}
+
+
+	/**
+	 * @param array $activation_history
+	 * @param int   $version_change
+	 * @param bool  $is_activation
+	 * @return int
+	 * @since 5.0.0.p
+	 */
+	private static function getRequestType(array $activation_history, int $version_change, bool $is_activation): int
+	{
+		// if no previous activation history exists, then this is a brand new install
+		if (empty($activation_history)) {
+			return EE_System::req_type_new_activation;
+		}
+		// current version is higher than previous version, so it's an upgrade
+		if ($version_change === 1) {
+			return EE_System::req_type_upgrade;
+		}
+		// current version is lower than previous version, so it's a downgrade
+		if ($version_change === -1) {
+			return EE_System::req_type_downgrade;
+		}
+		// version hasn't changed since last version so check if the activation indicator is set
+		// to determine if it's a reactivation, or just a normal request
+		return $is_activation
+			? EE_System::req_type_reactivation
+			: EE_System::req_type_normal;
+	}
+
+
+	/**
+	 * Detects if the $version_to_upgrade_to is higher than the most recent version in
+	 * the $activation_history_for_addon
+	 *
+	 * @param array  $activation_history    array where keys are versions,
+	 *                                      values are arrays of times activated (sometimes 'unknown-date')
+	 * @param string $current_version
+	 * @return int results of version_compare( $version_to_upgrade_to, $most_recently_active_version ).
+	 *                                      -1 if $version_to_upgrade_to is LOWER (downgrade);
+	 *                                      0 if $version_to_upgrade_to MATCHES (reactivation or normal request);
+	 *                                      1 if $version_to_upgrade_to is HIGHER (upgrade) ;
+	 */
+	private static function compareVersionWithPrevious(array $activation_history, string $current_version): int
+	{
+		// find the most recently-activated version
+		$most_recently_active_version = EE_System::getMostRecentlyActiveVersion($activation_history);
+		return version_compare($current_version, $most_recently_active_version);
+	}
+
+
+	/**
+	 * Gets the most recently active version listed in the activation history,
+	 * and if none are found (ie, it's a brand new install) returns '0.0.0.dev.000'.
+	 *
+	 * @param array|null $activation_history (keys are versions, values are arrays of times activated,
+	 *                                       sometimes containing 'unknown-date'
+	 * @return string
+	 */
+	private static function getMostRecentlyActiveVersion(?array $activation_history): string
+	{
+		$most_recent_activation_date  = '1970-01-01 00:00:00';
+		$most_recently_active_version = '0.0.0.dev.000';
+		if (is_array($activation_history)) {
+			foreach ($activation_history as $version => $activation_dates) {
+				// check there is a record of when this version was activated.
+				// Otherwise, mark it as unknown
+				if (! $activation_dates) {
+					$activation_dates = ['unknown-date'];
+				}
+				$activation_dates = is_string($activation_dates)
+					? [$activation_dates]
+					: $activation_dates;
+				foreach ($activation_dates as $activation_date) {
+					if ($activation_date !== 'unknown-date' && $activation_date > $most_recent_activation_date) {
+						$most_recently_active_version = $version;
+						$most_recent_activation_date  = $activation_date;
+					}
+				}
+			}
+		}
+		return $most_recently_active_version;
+	}
+
+
+	/**
+	 * This redirects to the about EE page after activation
+	 *
+	 * @return void
+	 */
+	public function redirect_to_about_ee()
+	{
+		$notices = EE_Error::get_notices(false);
+		// if current user is an admin and it's not an ajax or rest request
+		if (
+			! isset($notices['errors'])
+			&& $this->request->isAdmin()
+			&& apply_filters(
+				'FHEE__EE_System__redirect_to_about_ee__do_redirect',
+				$this->capabilities->current_user_can('manage_options', 'espresso_about_default')
+			)
+		) {
+			$query_params = ['page' => 'espresso_about'];
+			if (EE_System::instance()->detect_req_type() === EE_System::req_type_new_activation) {
+				$query_params['new_activation'] = true;
+			}
+			if (EE_System::instance()->detect_req_type() === EE_System::req_type_reactivation) {
+				$query_params['reactivation'] = true;
+			}
+			$url = add_query_arg($query_params, admin_url('admin.php'));
+			EEH_URL::safeRedirectAndExit($url);
+		}
+	}
+
+
+	/**
+	 * load_core_configuration
+	 * this is hooked into 'AHEE__EE_Bootstrap__load_core_configuration'
+	 * which runs during the WP 'plugins_loaded' action at priority 5
+	 *
+	 * @return void
+	 * @throws ReflectionException
+	 * @throws Exception
+	 */
+	public function load_core_configuration()
+	{
+		do_action('AHEE__EE_System__load_core_configuration__begin', $this);
+		$this->loader->getShared('EE_Load_Textdomain');
+		// load textdomain
+		EE_Load_Textdomain::load_textdomain();
+		// load and setup EE_Config and EE_Network_Config
+		$config = $this->loader->getShared('EE_Config');
+		$this->loader->getShared('EE_Network_Config');
+		// setup autoloaders
+		// enable logging?
+		$this->loader->getShared('EventEspresso\core\services\orm\TrashLogger');
+		if ($config->admin->use_remote_logging) {
+			$this->loader->getShared('EE_Log');
+		}
+		// check for activation errors
+		$activation_errors = get_option('ee_plugin_activation_errors', false);
+		if ($activation_errors) {
+			EE_Error::add_error($activation_errors, __FILE__, __FUNCTION__, __LINE__);
+			update_option('ee_plugin_activation_errors', false);
+		}
+		// get model names
+		$this->_parse_model_names();
+		// configure custom post type definitions
+		$this->loader->getShared('EventEspresso\core\domain\entities\custom_post_types\CustomTaxonomyDefinitions');
+		$this->loader->getShared('EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions');
+		do_action('AHEE__EE_System__load_core_configuration__complete', $this);
+	}
+
+
+	/**
+	 * cycles through all of the models/*.model.php files, and assembles an array of model names
+	 *
+	 * @return void
+	 * @throws ReflectionException
+	 */
+	private function _parse_model_names()
+	{
+		// get all the files in the EE_MODELS folder that end in .model.php
+		$models                 = glob(EE_MODELS . '*.model.php');
+		$model_names            = [];
+		$non_abstract_db_models = [];
+		foreach ($models as $model) {
+			// get model classname
+			$classname       = EEH_File::get_classname_from_filepath_with_standard_filename($model);
+			$short_name      = str_replace('EEM_', '', $classname);
+			$reflectionClass = new ReflectionClass($classname);
+			if ($reflectionClass->isSubclassOf('EEM_Base') && ! $reflectionClass->isAbstract()) {
+				$non_abstract_db_models[ $short_name ] = $classname;
+			}
+			$model_names[ $short_name ] = $classname;
+		}
+		$this->registry->models                 = apply_filters('FHEE__EE_System__parse_model_names', $model_names);
+		$this->registry->non_abstract_db_models = apply_filters(
+			'FHEE__EE_System__parse_implemented_model_names',
+			$non_abstract_db_models
+		);
+	}
+
+
+	/**
+	 * @throws Exception
+	 * @since 4.9.71.p
+	 */
+	public function loadRouteMatchSpecifications()
+	{
+		try {
+			$this->loader->getShared('EventEspresso\core\services\routing\RouteMatchSpecificationManager');
+			$this->loader->getShared('EventEspresso\core\services\routing\RouteCollection');
+			$this->router->loadPrimaryRoutes();
+		} catch (Exception $exception) {
+			new ExceptionStackTraceDisplay($exception);
+		}
+		do_action('AHEE__EE_System__loadRouteMatchSpecifications');
+	}
+
+
+	/**
+	 * loading CPT related classes earlier so that their definitions are available
+	 * but not performing any actual registration with WP core until load_CPTs_and_session() is called
+	 *
+	 * @since   4.10.21.p
+	 */
+	public function loadCustomPostTypes()
+	{
+		$this->register_custom_taxonomies     = $this->loader->getShared(
+			'EventEspresso\core\domain\services\custom_post_types\RegisterCustomTaxonomies'
+		);
+		$this->register_custom_post_types     = $this->loader->getShared(
+			'EventEspresso\core\domain\services\custom_post_types\RegisterCustomPostTypes'
+		);
+		$this->register_custom_taxonomy_terms = $this->loader->getShared(
+			'EventEspresso\core\domain\services\custom_post_types\RegisterCustomTaxonomyTerms'
+		);
+		// integrate WP_Query with the EE models
+		$this->loader->getShared('EE_CPT_Strategy');
+		// load legacy EE_Request_Handler in case add-ons still need it
+		$this->loader->getShared('EE_Request_Handler');
+	}
+
+
+	/**
+	 * register_shortcodes_modules_and_widgets
+	 * generate lists of shortcodes and modules, then verify paths and classes
+	 * This is hooked into 'AHEE__EE_Bootstrap__register_shortcodes_modules_and_widgets'
+	 * which runs during the WP 'plugins_loaded' action at priority 7
+	 *
+	 * @access public
+	 * @return void
+	 * @throws Exception
+	 */
+	public function register_shortcodes_modules_and_widgets()
+	{
+		$this->router->registerShortcodesModulesAndWidgets();
+		do_action('AHEE__EE_System__register_shortcodes_modules_and_widgets');
+		// check for addons using old hook point
+		if (has_action('AHEE__EE_System__register_shortcodes_modules_and_addons')) {
+			$this->_incompatible_addon_error();
+		}
+	}
+
+
+	/**
+	 * _incompatible_addon_error
+	 *
+	 * @access public
+	 * @return void
+	 */
+	private function _incompatible_addon_error()
+	{
+		// get array of classes hooking into here
+		$class_names = WordPressHooks::getClassNamesForAllCallbacksOnHook(
+			'AHEE__EE_System__register_shortcodes_modules_and_addons'
+		);
+		if (! empty($class_names)) {
+			$msg = esc_html__(
+				'The following plugins, addons, or modules appear to be incompatible with this version of Event Espresso and were automatically deactivated to avoid fatal errors:',
+				'event_espresso'
+			);
+			$msg .= '<ul>';
+			foreach ($class_names as $class_name) {
+				$msg .= '<li><b>Event Espresso - '
+						. str_replace(
+							['EE_', 'EEM_', 'EED_', 'EES_', 'EEW_'],
+							'',
+							$class_name
+						) . '</b></li>';
+			}
+			$msg .= '</ul>';
+			$msg .= esc_html__(
+				'Compatibility issues can be avoided and/or resolved by keeping addons and plugins updated to the latest version.',
+				'event_espresso'
+			);
+			// save list of incompatible addons to wp-options for later use
+			add_option('ee_incompatible_addons', $class_names, '', 'no');
+			if (is_admin()) {
+				EE_Error::add_error($msg, __FILE__, __FUNCTION__, __LINE__);
+			}
+		}
+	}
+
+
+	/**
+	 * brew_espresso
+	 * begins the process of setting hooks for initializing EE in the correct order
+	 * This is happening on the 'AHEE__EE_Bootstrap__brew_espresso' hook point
+	 * which runs during the WP 'plugins_loaded' action at priority 9
+	 *
+	 * @return void
+	 * @throws Exception
+	 */
+	public function brew_espresso()
+	{
+		do_action('AHEE__EE_System__brew_espresso__begin', $this);
+		// load some final core systems
+		add_action('init', [$this, 'set_hooks_for_core'], 1);
+		add_action('init', [$this, 'perform_activations_upgrades_and_migrations'], 3);
+		add_action('init', [$this, 'load_CPTs_and_session'], 5);
+		add_action('init', [$this, 'load_controllers'], 7);
+		add_action('init', [$this, 'core_loaded_and_ready'], 9);
+		add_action('init', [$this, 'initialize'], 10);
+		add_action('init', [$this, 'initialize_last'], 100);
+		$this->router->brewEspresso();
+		$this->loader->getShared('EventEspresso\PaymentMethods\Manager');
+		$this->loader->getShared('EE_Payment_Method_Manager');
+		do_action('AHEE__EE_System__brew_espresso__complete', $this);
+	}
+
+
+	/**
     /**
-     * indicates this is a 'normal' request. Ie, not activation, nor upgrade, nor activation.
-     * So examples of this would be a normal GET request on the frontend or backend, or a POST, etc
-     */
-    const req_type_normal = 0;
-
-    /**
-     * Indicates this is a brand new installation of EE so we should install
-     * tables and default data etc
-     */
-    const req_type_new_activation = 1;
-
-    /**
-     * we've detected that EE has been reactivated (or EE was activated during maintenance mode,
-     * and we just exited maintenance mode). We MUST check the database is setup properly
-     * and that default data is setup too
-     */
-    const req_type_reactivation = 2;
-
-    /**
-     * indicates that EE has been upgraded since its previous request.
-     * We may have data migration scripts to call and will want to trigger maintenance mode
-     */
-    const req_type_upgrade = 3;
-
-    /**
-     * TODO  will detect that EE has been DOWNGRADED. We probably don't want to run in this case...
-     */
-    const req_type_downgrade = 4;
-
-    /**
-     * @deprecated since version 4.6.0.dev.006
-     * Now whenever a new_activation is detected the request type is still just
-     * new_activation (same for reactivation, upgrade, downgrade etc), but if we're in maintenance mode
-     * EE_System::initialize_db_if_no_migrations_required and EE_Addon::initialize_db_if_no_migrations_required
-     * will instead enqueue that EE plugin's db initialization for when we're taken out of maintenance mode.
-     * (Specifically, when the migration manager indicates migrations are finished
-     * EE_Data_Migration_Manager::initialize_db_for_enqueued_ee_plugins() will be called)
-     */
-    const req_type_activation_but_not_installed = 5;
-
-    /**
-     * option prefix for recording the activation history (like core's "espresso_db_update") of addons
-     */
-    const addon_activation_history_option_prefix = 'ee_addon_activation_history_';
-
-    private static ?EE_System $_instance = null;
-
-    private ?LoaderInterface $loader;
-
-    private ?EE_Maintenance_Mode $maintenance_mode;
-
-    private ?EE_Registry $registry;
-
-    private ?RequestInterface $request;
-
-    private Router $router;
-
-    private ?AddonManager $addon_manager = null;
-
-    private ?EE_Capabilities $capabilities = null;
-
-    protected ?FeatureFlags $feature = null;
-
-    private ?RegisterCustomPostTypes $register_custom_post_types = null;
-
-    private ?RegisterCustomTaxonomies $register_custom_taxonomies = null;
-
-    private ?RegisterCustomTaxonomyTerms $register_custom_taxonomy_terms = null;
-
-    /**
-     * Stores which type of request this is, options being one of the constants on EE_System starting with req_type_*.
-     * It can be a brand-new activation, a reactivation, an upgrade, a downgrade, or a normal request.
-     */
-    private ?int $_req_type = null;
-
-    /**
-     * Whether or not there was a non-micro version change in EE core version during this request
-     */
-    private bool $_major_version_change = false;
-
-
-    /**
-     * @singleton method used to instantiate class object
-     * @param LoaderInterface|null     $loader
-     * @param EE_Maintenance_Mode|null $maintenance_mode
-     * @param EE_Registry|null         $registry
-     * @param RequestInterface|null    $request
-     * @param Router|null              $router
-     * @param FeatureFlags|null        $feature
-     * @return EE_System
-     */
-    public static function instance(
-        ?LoaderInterface $loader = null,
-        ?EE_Maintenance_Mode $maintenance_mode = null,
-        ?EE_Registry $registry = null,
-        ?RequestInterface $request = null,
-        ?Router $router = null,
-        ?FeatureFlags $feature = null
-    ): EE_System {
-        // check if class object is instantiated
-        if (! self::$_instance instanceof EE_System) {
-            self::$_instance = new self($loader, $maintenance_mode, $registry, $request, $router, $feature);
-        }
-        return self::$_instance;
-    }
-
-
-    /**
-     * resets the instance and returns it
-     *
-     * @return EE_System
-     */
-    public static function reset(): EE_System
-    {
-        self::$_instance->_req_type = null;
-        // make sure none of the old hooks are left hanging around
-        remove_all_actions('AHEE__EE_System__perform_activations_upgrades_and_migrations');
-        // we need to reset the migration manager in order for it to detect DMSs properly
-        EE_Data_Migration_Manager::reset();
-        self::instance()->detect_activations_or_upgrades();
-        self::instance()->perform_activations_upgrades_and_migrations();
-        return self::instance();
-    }
-
-
-    /**
-     * sets hooks for running rest of system
-     * provides "AHEE__EE_System__construct__complete" hook for EE Addons to use as their starting point
-     * starting EE Addons from any other point may lead to problems
-     *
-     * @param LoaderInterface     $loader
-     * @param EE_Maintenance_Mode $maintenance_mode
-     * @param EE_Registry         $registry
-     * @param RequestInterface    $request
-     * @param Router              $router
-     * @param FeatureFlags        $feature
-     */
-    private function __construct(
-        LoaderInterface $loader,
-        EE_Maintenance_Mode $maintenance_mode,
-        EE_Registry $registry,
-        RequestInterface $request,
-        Router $router,
-        FeatureFlags $feature
-    ) {
-        $this->registry         = $registry;
-        $this->loader           = $loader;
-        $this->request          = $request;
-        $this->router           = $router;
-        $this->maintenance_mode = $maintenance_mode;
-        $this->feature          = $feature;
-        do_action('AHEE__EE_System__construct__begin', $this);
-        add_action(
-            'AHEE__EE_Bootstrap__load_espresso_addons',
-            [$this, 'loadWpGraphQL'],
-            3
-        );
-        add_action(
-            'AHEE__EE_Bootstrap__load_espresso_addons',
-            [$this, 'loadCapabilities'],
-            5
-        );
-        add_action(
-            'AHEE__EE_Bootstrap__load_espresso_addons',
-            [$this, 'loadCommandBus'],
-            7
-        );
-        add_action(
-            'AHEE__EE_Bootstrap__load_espresso_addons',
-            [$this, 'loadPluginApi'],
-            9
-        );
-        // give caff stuff a chance to play during the activation process too.
-        add_action(
-            'AHEE__EE_Bootstrap__load_espresso_addons',
-            [$this, 'brewCaffeinated'],
-            9
-        );
-        // allow addons to load first so that they can register autoloaders, set hooks for running DMS's, etc
-        add_action(
-            'AHEE__EE_Bootstrap__load_espresso_addons',
-            [$this, 'load_espresso_addons']
-        );
-        // when an ee addon is activated, we want to call the core hook(s) again
-        // because the newly-activated addon didn't get a chance to run at all
-        add_action('activate_plugin', [$this, 'load_espresso_addons'], 1);
-        // detect whether install or upgrade
-        add_action(
-            'AHEE__EE_Bootstrap__detect_activations_or_upgrades',
-            [$this, 'detect_activations_or_upgrades'],
-            3
-        );
-        // load EE_Config, EE_Textdomain, etc
-        add_action(
-            'AHEE__EE_Bootstrap__load_core_configuration',
-            [$this, 'load_core_configuration'],
-            5
-        );
-        // load specifications for matching routes to current request
-        add_action(
-            'AHEE__EE_Bootstrap__load_core_configuration',
-            [$this, 'loadRouteMatchSpecifications']
-        );
-        // load specifications for custom post types
-        add_action(
-            'AHEE__EE_Bootstrap__load_core_configuration',
-            [$this, 'loadCustomPostTypes']
-        );
-        // load specifications for custom post types
-        add_action(
-            'AHEE__EE_Bootstrap__load_core_configuration',
-            [$this, 'loadCustomPostTypes']
-        );
-        // load EE_Config, EE_Textdomain, etc
-        add_action(
-            'AHEE__EE_Bootstrap__register_shortcodes_modules_and_widgets',
-            [$this, 'register_shortcodes_modules_and_widgets'],
-            7
-        );
-        // you wanna get going? I wanna get going... let's get going!
-        add_action(
-            'AHEE__EE_Bootstrap__brew_espresso',
-            [$this, 'brew_espresso'],
-            9
-        );
-        // other housekeeping
-        // exclude EE critical pages from wp_list_pages
-        add_filter(
-            'wp_list_pages_excludes',
-            [$this, 'remove_pages_from_wp_list_pages'],
-            10
-        );
-        // ALL EE Addons should use the following hook point to attach their initial setup too
-        // it's extremely important for EE Addons to register any class autoloaders so that they can be available when the EE_Config loads
-        do_action('AHEE__EE_System__construct__complete', $this);
-    }
-
-
-    /**
-     * load and setup EE_Capabilities
-     *
-     * @return void
-     */
-    public function loadWpGraphQL()
-    {
-        espressoLoadWpGraphQL();
-    }
-
-
-    /**
-     * load and setup EE_Capabilities
-     *
-     * @return void
-     */
-    public function loadCapabilities()
-    {
-        $this->capabilities = $this->loader->getShared('EE_Capabilities');
-    }
-
-
-    /**
-     * create and cache the CommandBus, and also add middleware
-     * The CapChecker middleware requires the use of EE_Capabilities
-     * which is why we need to load the CommandBus after Caps are set up
-     * CommandBus middleware operate FIFO - First In First Out
-     * so LocateMovedCommands will run first in order to return any new commands
-     *
-     * @return void
-     */
-    public function loadCommandBus()
-    {
-        $this->loader->getShared(
-            'CommandBusInterface',
-            [
-                null,
-                apply_filters(
-                    'FHEE__EE_Load_Espresso_Core__handle_request__CommandBus_middleware',
-                    [
-                        $this->loader->getShared('EventEspresso\core\services\commands\middleware\LocateMovedCommands'),
-                        $this->loader->getShared('EventEspresso\core\services\commands\middleware\CapChecker'),
-                        $this->loader->getShared('EventEspresso\core\services\commands\middleware\AddActionHook'),
-                    ]
-                ),
-            ]
-        );
-    }
-
-
-    /**
-     * @return void
-     * @throws Exception
-     */
-    public function loadPluginApi()
-    {
-        $this->addon_manager = $this->loader->getShared(AddonManager::class);
-        $this->addon_manager->initialize();
-        $this->loader->getShared('EE_Request_Handler');
-    }
-
-
-    /**
-     * The purpose of this method is to simply check for a file named "caffeinated/brewing_regular.php" for any hooks
-     * that need to be setup before our EE_System launches.
-     *
-     * @return void
-     * @throws DomainException
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws InvalidClassException
-     * @throws InvalidFilePathException
-     * @throws EE_Error
-     */
-    public function brewCaffeinated()
-    {
-        static $brew;
-        /** @var Domain $domain */
-        $domain = DomainFactory::getEventEspressoCoreDomain();
-        if ($domain->isCaffeinated() && ! $brew instanceof EE_Brewing_Regular) {
-            require_once EE_CAFF_PATH . 'brewing_regular.php';
-            /** @var EE_Brewing_Regular $brew */
-            $brew = LoaderFactory::getLoader()->getShared(EE_Brewing_Regular::class);
-            if (! $this->feature->allowed('use_edd_plugin_licensing')) {
-                $brew->initializePUE();
-            }
-            add_action(
-                'AHEE__EE_System__load_core_configuration__begin',
-                [$brew, 'caffeinated']
-            );
-        }
-    }
-
-
-    /**
-     * load_espresso_addons
-     * allow addons to load first so that they can set hooks for running DMS's, etc
-     * this is hooked into both:
-     *    'AHEE__EE_Bootstrap__load_core_configuration'
-     *        which runs during the WP 'plugins_loaded' action at priority 5
-     *    and the WP 'activate_plugin' hook point
-     *
-     * @return void
-     * @throws Exception
-     * @throws Throwable
-     */
-    public function load_espresso_addons()
-    {
-        if ($this->feature->allowed('use_edd_plugin_licensing')) {
-            new EventEspresso\core\services\licensing\PluginLicense(
-                EVENT_ESPRESSO_MAIN_FILE,
-                0,
-                'Event Espresso Core',
-                'event_espresso_core',
-                espresso_version()
-            );
-        }
-        // looking for hooks? they've been moved into the AddonManager to maintain compatibility
-        $this->addon_manager->loadAddons();
-    }
-
-
-    /**
-     * detect_activations_or_upgrades
-     * Checks for activation or upgrade of core first;
-     * then also checks if any registered addons have been activated or upgraded
-     * This is hooked into 'AHEE__EE_Bootstrap__detect_activations_or_upgrades'
-     * which runs during the WP 'plugins_loaded' action at priority 3
-     *
-     * @access public
-     * @return void
-     */
-    public function detect_activations_or_upgrades()
-    {
-        // first off: let's make sure to handle core
-        $this->detect_if_activation_or_upgrade();
-        foreach ($this->registry->addons as $addon) {
-            if ($addon instanceof EE_Addon) {
-                // detect teh request type for that addon
-                $addon->detect_req_type();
-            }
-        }
-    }
-
-
-    /**
-     * detect_if_activation_or_upgrade
-     * Takes care of detecting whether this is a brand new install or code upgrade,
-     * and either setting up the DB or setting up maintenance mode etc.
-     *
-     * @access public
-     * @return void
-     */
-    public function detect_if_activation_or_upgrade()
-    {
-        do_action('AHEE__EE_System___detect_if_activation_or_upgrade__begin');
-        // check if db has been updated, or if its a brand-new installation
-        $espresso_db_update = $this->fix_espresso_db_upgrade_option();
-        $request_type       = $this->detect_req_type($espresso_db_update);
-        switch ($request_type) {
-            case EE_System::req_type_new_activation:
-                do_action('AHEE__EE_System__detect_if_activation_or_upgrade__new_activation');
-                $this->_handle_core_version_change($espresso_db_update);
-                break;
-            case EE_System::req_type_reactivation:
-                do_action('AHEE__EE_System__detect_if_activation_or_upgrade__reactivation');
-                $this->_handle_core_version_change($espresso_db_update);
-                break;
-            case EE_System::req_type_upgrade:
-                do_action('AHEE__EE_System__detect_if_activation_or_upgrade__upgrade');
-                // migrations may be required now that we've upgraded
-                $this->maintenance_mode->set_maintenance_mode_if_db_old();
-                $this->_handle_core_version_change($espresso_db_update);
-                break;
-            case EE_System::req_type_downgrade:
-                do_action('AHEE__EE_System__detect_if_activation_or_upgrade__downgrade');
-                // its possible migrations are no longer required
-                $this->maintenance_mode->set_maintenance_mode_if_db_old();
-                $this->_handle_core_version_change($espresso_db_update);
-                break;
-            case EE_System::req_type_normal:
-            default:
-                break;
-        }
-        do_action('AHEE__EE_System__detect_if_activation_or_upgrade__complete');
-    }
-
-
-    /**
-     * Updates the list of installed versions and sets hooks for
-     * initializing the database later during the request
-     *
-     * @param array $espresso_db_update
-     */
-    private function _handle_core_version_change(array $espresso_db_update)
-    {
-        $this->update_list_of_installed_versions($espresso_db_update);
-        // get ready to verify the DB is ok (provided we aren't in maintenance mode, of course)
-        add_action(
-            'AHEE__EE_System__perform_activations_upgrades_and_migrations',
-            [$this, 'initialize_db_if_no_migrations_required']
-        );
-    }
-
-
-    /**
-     * standardizes the wp option 'espresso_db_upgrade' which actually stores
-     * information about what versions of EE have been installed and activated,
-     * NOT necessarily the state of the database
-     *
-     * @param mixed $espresso_db_update           the value of the WordPress option.
-     *                                            If not supplied, fetches it from the options table
-     * @return array the correct value of 'espresso_db_upgrade', after saving it, if it needed correction
-     */
-    private function fix_espresso_db_upgrade_option($espresso_db_update = null): array
-    {
-        do_action('FHEE__EE_System__manage_fix_espresso_db_upgrade_option__begin', $espresso_db_update);
-        if (! $espresso_db_update) {
-            $espresso_db_update = get_option('espresso_db_update');
-        }
-        // check that option is an array
-        if (! is_array($espresso_db_update)) {
-            // if option is FALSE, then it never existed
-            if ($espresso_db_update === false) {
-                // make $espresso_db_update an array and save option with autoload OFF
-                $espresso_db_update = [];
-                add_option('espresso_db_update', $espresso_db_update, '', 'no');
-            } else {
-                // option is NOT FALSE but also is NOT an array, so make it an array and save it
-                $espresso_db_update = [$espresso_db_update => []];
-                update_option('espresso_db_update', $espresso_db_update);
-            }
-        } else {
-            $corrected_db_update = [];
-            // if IS an array, but is it an array where KEYS are version numbers, and values are arrays?
-            foreach ($espresso_db_update as $should_be_version_string => $should_be_array) {
-                if (is_int($should_be_version_string) && ! is_array($should_be_array)) {
-                    // the key is an int, and the value IS NOT an array
-                    // so it must be numerically-indexed, where values are versions installed...
-                    // fix it!
-                    $version_string                         = $should_be_array;
-                    $corrected_db_update[ $version_string ] = ['unknown-date'];
-                } else {
-                    // ok it checks out
-                    $corrected_db_update[ $should_be_version_string ] = $should_be_array;
-                }
-            }
-            $espresso_db_update = $corrected_db_update;
-            update_option('espresso_db_update', $espresso_db_update);
-        }
-        do_action('FHEE__EE_System__manage_fix_espresso_db_upgrade_option__complete', $espresso_db_update);
-        return ! empty($espresso_db_update)
-            ? $espresso_db_update
-            : [];
-    }
-
-
-    /**
-     * Does the traditional work of setting up the plugin's database and adding default data.
-     * If migration script/process did not exist, this is what would happen on every activation/reactivation/upgrade.
-     * NOTE: if we're in maintenance mode (which would be the case if we detect there are data
-     * migration scripts that need to be run and a version change happens), enqueues core for database initialization,
-     * so that it will be done when migrations are finished
-     *
-     * @param boolean $initialize_addons_too if true, we double-check addons' database tables etc too;
-     * @param boolean $verify_schema         if true will re-check the database tables have the correct schema.
-     *                                       This is a resource-intensive job
-     *                                       so we prefer to only do it when necessary
-     * @return void
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public function initialize_db_if_no_migrations_required($initialize_addons_too = false, $verify_schema = true)
-    {
-        $request_type = $this->detect_req_type();
-        // only initialize system if we're not in maintenance mode.
-        if (! MaintenanceStatus::isFullSite()) {
-            /** @var EventEspresso\core\domain\services\custom_post_types\RewriteRules $rewrite_rules */
-            $rewrite_rules = $this->loader->getShared(
-                'EventEspresso\core\domain\services\custom_post_types\RewriteRules'
-            );
-            $rewrite_rules->flush();
-            if ($verify_schema) {
-                EEH_Activation::initialize_db_and_folders();
-            }
-            EEH_Activation::initialize_db_content();
-            EEH_Activation::system_initialization();
-            if ($initialize_addons_too) {
-                $this->initialize_addons();
-            }
-        } else {
-            EE_Data_Migration_Manager::instance()->enqueue_db_initialization_for('Core');
-        }
-        if (
-            $request_type === EE_System::req_type_new_activation
-            || $request_type === EE_System::req_type_reactivation
-            || (
-                $request_type === EE_System::req_type_upgrade
-                && $this->is_major_version_change()
-            )
-        ) {
-            add_action('AHEE__EE_System__initialize_last', [$this, 'redirect_to_about_ee'], 9);
-        }
-    }
-
-
-    /**
-     * Initializes the db for all registered addons
-     *
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public function initialize_addons()
-    {
-        // foreach registered addon, make sure its db is up-to-date too
-        foreach ($this->registry->addons as $addon) {
-            if ($addon instanceof EE_Addon) {
-                $addon->initialize_db_if_no_migrations_required();
-            }
-        }
-    }
-
-
-    /**
-     * Adds the current code version to the saved wp option which stores a list of all ee versions ever installed.
-     *
-     * @param array  $version_history
-     * @param string $current_version_to_add version to be added to the version history
-     * @return    boolean success as to whether or not this option was changed
-     */
-    public function update_list_of_installed_versions($version_history = null, $current_version_to_add = null): bool
-    {
-        if (! $version_history) {
-            $version_history = $this->fix_espresso_db_upgrade_option($version_history);
-        }
-        if ($current_version_to_add === null) {
-            $current_version_to_add = espresso_version();
-        }
-        $version_history[ $current_version_to_add ][] = date('Y-m-d H:i:s', time());
-        // re-save
-        return update_option('espresso_db_update', $version_history);
-    }
-
-
-    /**
-     * Detects if the current version indicated in the has existed in the list of
-     * previously-installed versions of EE (espresso_db_update). Does NOT modify it (ie, no side-effect)
-     *
-     * @param array|null $espresso_db_update array from the wp option stored under the name 'espresso_db_update'.
-     *                                       If not supplied, fetches it from the options table.
-     *                                       Also, caches its result so later parts of the code can also know whether
-     *                                       there's been an update or not. This way we can add the current version to
-     *                                       espresso_db_update, but still know if this is a new install or not
-     * @return int one of the constants on EE_System::req_type_
-     */
-    public function detect_req_type(?array $espresso_db_update = null): int
-    {
-        if ($this->_req_type === null) {
-            $espresso_db_update          = ! empty($espresso_db_update)
-                ? $espresso_db_update
-                : $this->fix_espresso_db_upgrade_option();
-            $this->_req_type             = EE_System::detect_req_type_given_activation_history(
-                $espresso_db_update,
-                'ee_espresso_activation',
-                espresso_version()
-            );
-            $this->_major_version_change = $this->_detect_major_version_change($espresso_db_update);
-            $this->request->setIsActivation($this->_req_type !== EE_System::req_type_normal);
-        }
-        return $this->_req_type;
-    }
-
-
-    /**
-     * Returns whether or not there was a non-micro version change (ie, change in either
-     * the first or second number in the version. Eg 4.9.0.rc.001 to 4.10.0.rc.000,
-     * but not 4.9.0.rc.0001 to 4.9.1.rc.0001
-     *
-     * @param $activation_history
-     * @return bool
-     */
-    private function _detect_major_version_change($activation_history): bool
-    {
-        $previous_version       = EE_System::getMostRecentlyActiveVersion($activation_history);
-        $previous_version_parts = explode('.', $previous_version);
-        $current_version_parts  = explode('.', espresso_version());
-        return isset(
-                   $previous_version_parts[0],
-                   $previous_version_parts[1],
-                   $current_version_parts[0],
-                   $current_version_parts[1]
-               ) && (
-                   $previous_version_parts[0] !== $current_version_parts[0]
-                   || $previous_version_parts[1] !== $current_version_parts[1]
-               );
-    }
-
-
-    /**
-     * Returns true if either the major or minor version of EE changed during this request.
-     * Eg 4.9.0.rc.001 to 4.10.0.rc.000, but not 4.9.0.rc.0001 to 4.9.1.rc.0001
-     *
-     * @return bool
-     */
-    public function is_major_version_change(): bool
-    {
-        return $this->_major_version_change;
-    }
-
-
-    /**
-     * Determines the request type for any ee addon, given three piece of info: the current array of activation
-     * histories (for core that' 'espresso_db_update' wp option); the name of the WordPress option which is temporarily
-     * set upon activation of the plugin (for core it's 'ee_espresso_activation'); and the version that this plugin was
-     * just activated to (for core that will always be espresso_version())
-     *
-     * @param array|null $activation_history               the option's value which stores the activation history for
-     *                                                     this
-     *                                                     ee plugin. for core that's 'espresso_db_update'
-     * @param string     $activation_indicator_option_name the name of the WordPress option that is temporarily set to
-     *                                                     indicate that this plugin was just activated
-     * @param string     $current_version                  the version that was just upgraded to (for core that will be
-     *                                                     espresso_version())
-     * @return int one of the constants on EE_System::req_type_
-     */
-    public static function detect_req_type_given_activation_history(
-        array $activation_history,
-        string $activation_indicator_option_name,
-        string $current_version
-    ): int {
-        $version_change = self::compareVersionWithPrevious($activation_history, $current_version);
-        $is_activation  = get_option($activation_indicator_option_name, false);
-        $req_type       = self::getRequestType($activation_history, $version_change, $is_activation);
-        if ($is_activation) {
-            // cleanup in aisle 6
-            delete_option($activation_indicator_option_name);
-        }
-        return $req_type;
-    }
-
-
-    /**
-     * @param array $activation_history
-     * @param int   $version_change
-     * @param bool  $is_activation
-     * @return int
-     * @since 5.0.0.p
-     */
-    private static function getRequestType(array $activation_history, int $version_change, bool $is_activation): int
-    {
-        // if no previous activation history exists, then this is a brand new install
-        if (empty($activation_history)) {
-            return EE_System::req_type_new_activation;
-        }
-        // current version is higher than previous version, so it's an upgrade
-        if ($version_change === 1) {
-            return EE_System::req_type_upgrade;
-        }
-        // current version is lower than previous version, so it's a downgrade
-        if ($version_change === -1) {
-            return EE_System::req_type_downgrade;
-        }
-        // version hasn't changed since last version so check if the activation indicator is set
-        // to determine if it's a reactivation, or just a normal request
-        return $is_activation
-            ? EE_System::req_type_reactivation
-            : EE_System::req_type_normal;
-    }
-
-
-    /**
-     * Detects if the $version_to_upgrade_to is higher than the most recent version in
-     * the $activation_history_for_addon
-     *
-     * @param array  $activation_history    array where keys are versions,
-     *                                      values are arrays of times activated (sometimes 'unknown-date')
-     * @param string $current_version
-     * @return int results of version_compare( $version_to_upgrade_to, $most_recently_active_version ).
-     *                                      -1 if $version_to_upgrade_to is LOWER (downgrade);
-     *                                      0 if $version_to_upgrade_to MATCHES (reactivation or normal request);
-     *                                      1 if $version_to_upgrade_to is HIGHER (upgrade) ;
-     */
-    private static function compareVersionWithPrevious(array $activation_history, string $current_version): int
-    {
-        // find the most recently-activated version
-        $most_recently_active_version = EE_System::getMostRecentlyActiveVersion($activation_history);
-        return version_compare($current_version, $most_recently_active_version);
-    }
-
-
-    /**
-     * Gets the most recently active version listed in the activation history,
-     * and if none are found (ie, it's a brand new install) returns '0.0.0.dev.000'.
-     *
-     * @param array|null $activation_history (keys are versions, values are arrays of times activated,
-     *                                       sometimes containing 'unknown-date'
-     * @return string
-     */
-    private static function getMostRecentlyActiveVersion(?array $activation_history): string
-    {
-        $most_recent_activation_date  = '1970-01-01 00:00:00';
-        $most_recently_active_version = '0.0.0.dev.000';
-        if (is_array($activation_history)) {
-            foreach ($activation_history as $version => $activation_dates) {
-                // check there is a record of when this version was activated.
-                // Otherwise, mark it as unknown
-                if (! $activation_dates) {
-                    $activation_dates = ['unknown-date'];
-                }
-                $activation_dates = is_string($activation_dates)
-                    ? [$activation_dates]
-                    : $activation_dates;
-                foreach ($activation_dates as $activation_date) {
-                    if ($activation_date !== 'unknown-date' && $activation_date > $most_recent_activation_date) {
-                        $most_recently_active_version = $version;
-                        $most_recent_activation_date  = $activation_date;
-                    }
-                }
-            }
-        }
-        return $most_recently_active_version;
-    }
-
-
-    /**
-     * This redirects to the about EE page after activation
-     *
-     * @return void
-     */
-    public function redirect_to_about_ee()
-    {
-        $notices = EE_Error::get_notices(false);
-        // if current user is an admin and it's not an ajax or rest request
-        if (
-            ! isset($notices['errors'])
-            && $this->request->isAdmin()
-            && apply_filters(
-                'FHEE__EE_System__redirect_to_about_ee__do_redirect',
-                $this->capabilities->current_user_can('manage_options', 'espresso_about_default')
-            )
-        ) {
-            $query_params = ['page' => 'espresso_about'];
-            if (EE_System::instance()->detect_req_type() === EE_System::req_type_new_activation) {
-                $query_params['new_activation'] = true;
-            }
-            if (EE_System::instance()->detect_req_type() === EE_System::req_type_reactivation) {
-                $query_params['reactivation'] = true;
-            }
-            $url = add_query_arg($query_params, admin_url('admin.php'));
-            EEH_URL::safeRedirectAndExit($url);
-        }
-    }
-
-
-    /**
-     * load_core_configuration
-     * this is hooked into 'AHEE__EE_Bootstrap__load_core_configuration'
-     * which runs during the WP 'plugins_loaded' action at priority 5
-     *
-     * @return void
-     * @throws ReflectionException
-     * @throws Exception
-     */
-    public function load_core_configuration()
-    {
-        do_action('AHEE__EE_System__load_core_configuration__begin', $this);
-        $this->loader->getShared('EE_Load_Textdomain');
-        // load textdomain
-        EE_Load_Textdomain::load_textdomain();
-        // load and setup EE_Config and EE_Network_Config
-        $config = $this->loader->getShared('EE_Config');
-        $this->loader->getShared('EE_Network_Config');
-        // setup autoloaders
-        // enable logging?
-        $this->loader->getShared('EventEspresso\core\services\orm\TrashLogger');
-        if ($config->admin->use_remote_logging) {
-            $this->loader->getShared('EE_Log');
-        }
-        // check for activation errors
-        $activation_errors = get_option('ee_plugin_activation_errors', false);
-        if ($activation_errors) {
-            EE_Error::add_error($activation_errors, __FILE__, __FUNCTION__, __LINE__);
-            update_option('ee_plugin_activation_errors', false);
-        }
-        // get model names
-        $this->_parse_model_names();
-        // configure custom post type definitions
-        $this->loader->getShared('EventEspresso\core\domain\entities\custom_post_types\CustomTaxonomyDefinitions');
-        $this->loader->getShared('EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions');
-        do_action('AHEE__EE_System__load_core_configuration__complete', $this);
-    }
-
-
-    /**
-     * cycles through all of the models/*.model.php files, and assembles an array of model names
-     *
-     * @return void
-     * @throws ReflectionException
-     */
-    private function _parse_model_names()
-    {
-        // get all the files in the EE_MODELS folder that end in .model.php
-        $models                 = glob(EE_MODELS . '*.model.php');
-        $model_names            = [];
-        $non_abstract_db_models = [];
-        foreach ($models as $model) {
-            // get model classname
-            $classname       = EEH_File::get_classname_from_filepath_with_standard_filename($model);
-            $short_name      = str_replace('EEM_', '', $classname);
-            $reflectionClass = new ReflectionClass($classname);
-            if ($reflectionClass->isSubclassOf('EEM_Base') && ! $reflectionClass->isAbstract()) {
-                $non_abstract_db_models[ $short_name ] = $classname;
-            }
-            $model_names[ $short_name ] = $classname;
-        }
-        $this->registry->models                 = apply_filters('FHEE__EE_System__parse_model_names', $model_names);
-        $this->registry->non_abstract_db_models = apply_filters(
-            'FHEE__EE_System__parse_implemented_model_names',
-            $non_abstract_db_models
-        );
-    }
-
-
-    /**
-     * @throws Exception
-     * @since 4.9.71.p
-     */
-    public function loadRouteMatchSpecifications()
-    {
-        try {
-            $this->loader->getShared('EventEspresso\core\services\routing\RouteMatchSpecificationManager');
-            $this->loader->getShared('EventEspresso\core\services\routing\RouteCollection');
-            $this->router->loadPrimaryRoutes();
-        } catch (Exception $exception) {
-            new ExceptionStackTraceDisplay($exception);
-        }
-        do_action('AHEE__EE_System__loadRouteMatchSpecifications');
-    }
-
-
-    /**
-     * loading CPT related classes earlier so that their definitions are available
-     * but not performing any actual registration with WP core until load_CPTs_and_session() is called
-     *
-     * @since   4.10.21.p
-     */
-    public function loadCustomPostTypes()
-    {
-        $this->register_custom_taxonomies     = $this->loader->getShared(
-            'EventEspresso\core\domain\services\custom_post_types\RegisterCustomTaxonomies'
-        );
-        $this->register_custom_post_types     = $this->loader->getShared(
-            'EventEspresso\core\domain\services\custom_post_types\RegisterCustomPostTypes'
-        );
-        $this->register_custom_taxonomy_terms = $this->loader->getShared(
-            'EventEspresso\core\domain\services\custom_post_types\RegisterCustomTaxonomyTerms'
-        );
-        // integrate WP_Query with the EE models
-        $this->loader->getShared('EE_CPT_Strategy');
-        // load legacy EE_Request_Handler in case add-ons still need it
-        $this->loader->getShared('EE_Request_Handler');
-    }
-
-
-    /**
-     * register_shortcodes_modules_and_widgets
-     * generate lists of shortcodes and modules, then verify paths and classes
-     * This is hooked into 'AHEE__EE_Bootstrap__register_shortcodes_modules_and_widgets'
-     * which runs during the WP 'plugins_loaded' action at priority 7
-     *
-     * @access public
-     * @return void
-     * @throws Exception
-     */
-    public function register_shortcodes_modules_and_widgets()
-    {
-        $this->router->registerShortcodesModulesAndWidgets();
-        do_action('AHEE__EE_System__register_shortcodes_modules_and_widgets');
-        // check for addons using old hook point
-        if (has_action('AHEE__EE_System__register_shortcodes_modules_and_addons')) {
-            $this->_incompatible_addon_error();
-        }
-    }
-
-
-    /**
-     * _incompatible_addon_error
-     *
-     * @access public
-     * @return void
-     */
-    private function _incompatible_addon_error()
-    {
-        // get array of classes hooking into here
-        $class_names = WordPressHooks::getClassNamesForAllCallbacksOnHook(
-            'AHEE__EE_System__register_shortcodes_modules_and_addons'
-        );
-        if (! empty($class_names)) {
-            $msg = esc_html__(
-                'The following plugins, addons, or modules appear to be incompatible with this version of Event Espresso and were automatically deactivated to avoid fatal errors:',
-                'event_espresso'
-            );
-            $msg .= '<ul>';
-            foreach ($class_names as $class_name) {
-                $msg .= '<li><b>Event Espresso - '
-                        . str_replace(
-                            ['EE_', 'EEM_', 'EED_', 'EES_', 'EEW_'],
-                            '',
-                            $class_name
-                        ) . '</b></li>';
-            }
-            $msg .= '</ul>';
-            $msg .= esc_html__(
-                'Compatibility issues can be avoided and/or resolved by keeping addons and plugins updated to the latest version.',
-                'event_espresso'
-            );
-            // save list of incompatible addons to wp-options for later use
-            add_option('ee_incompatible_addons', $class_names, '', 'no');
-            if (is_admin()) {
-                EE_Error::add_error($msg, __FILE__, __FUNCTION__, __LINE__);
-            }
-        }
-    }
-
-
-    /**
-     * brew_espresso
-     * begins the process of setting hooks for initializing EE in the correct order
-     * This is happening on the 'AHEE__EE_Bootstrap__brew_espresso' hook point
-     * which runs during the WP 'plugins_loaded' action at priority 9
-     *
-     * @return void
-     * @throws Exception
-     */
-    public function brew_espresso()
-    {
-        do_action('AHEE__EE_System__brew_espresso__begin', $this);
-        // load some final core systems
-        add_action('init', [$this, 'set_hooks_for_core'], 1);
-        add_action('init', [$this, 'perform_activations_upgrades_and_migrations'], 3);
-        add_action('init', [$this, 'load_CPTs_and_session'], 5);
-        add_action('init', [$this, 'load_controllers'], 7);
-        add_action('init', [$this, 'core_loaded_and_ready'], 9);
-        add_action('init', [$this, 'initialize'], 10);
-        add_action('init', [$this, 'initialize_last'], 100);
-        $this->router->brewEspresso();
-        $this->loader->getShared('EventEspresso\PaymentMethods\Manager');
-        $this->loader->getShared('EE_Payment_Method_Manager');
-        do_action('AHEE__EE_System__brew_espresso__complete', $this);
-    }
-
-
-    /**
-    /**
-     *    set_hooks_for_core
-     *
-     * @access public
-     * @return    void
-     * @throws EE_Error
-     */
-    public function set_hooks_for_core()
-    {
-        $this->_deactivate_incompatible_addons();
-        do_action('AHEE__EE_System__set_hooks_for_core');
-        $this->loader->getShared('EventEspresso\core\domain\values\session\SessionLifespan');
-        // caps need to be initialized on every request so that capability maps are set.
-        // @see https://events.codebasehq.com/projects/event-espresso/tickets/8674
-        $this->capabilities->init_caps();
-    }
-
-
-    /**
-     * Using the information gathered in EE_System::_incompatible_addon_error,
-     * deactivates any addons considered incompatible with the current version of EE
-     */
-    private function _deactivate_incompatible_addons()
-    {
-        $incompatible_addons = get_option('ee_incompatible_addons', []);
-        if (! empty($incompatible_addons)) {
-            $active_plugins = get_option('active_plugins', []);
-            foreach ($active_plugins as $active_plugin) {
-                foreach ($incompatible_addons as $incompatible_addon) {
-                    if (strpos($active_plugin, $incompatible_addon) !== false) {
-                        $this->request->unSetRequestParams(['activate'], true);
-                        espresso_deactivate_plugin($active_plugin);
-                    }
-                }
-            }
-        }
-    }
-
-
-    /**
-     *    perform_activations_upgrades_and_migrations
-     *
-     * @access public
-     * @return    void
-     */
-    public function perform_activations_upgrades_and_migrations()
-    {
-        do_action('AHEE__EE_System__perform_activations_upgrades_and_migrations');
-    }
-
-
-    /**
-     * @return void
-     * @throws DomainException
-     */
-    public function load_CPTs_and_session()
-    {
-        do_action('AHEE__EE_System__load_CPTs_and_session__start');
-        $this->register_custom_taxonomies->registerCustomTaxonomies();
-        $this->register_custom_post_types->registerCustomPostTypes();
-        $this->register_custom_taxonomy_terms->registerCustomTaxonomyTerms();
-        do_action('AHEE__EE_System__load_CPTs_and_session__complete');
-    }
-
-
-    /**
-     * load_controllers
-     * this is the best place to load any additional controllers that needs access to EE core.
-     * it is expected that all basic core EE systems, that are not dependant on the current request are loaded at this
-     * time
-     *
-     * @access public
-     * @return void
-     * @throws Exception
-     */
-    public function load_controllers()
-    {
-        do_action('AHEE__EE_System__load_controllers__start');
-        $this->router->loadControllers();
-        do_action('AHEE__EE_System__load_controllers__complete');
-    }
-
-
-    /**
-     * core_loaded_and_ready
-     * all of the basic EE core should be loaded at this point and available regardless of M-Mode
-     *
-     * @access public
-     * @return void
-     * @throws Exception
-     */
-    public function core_loaded_and_ready()
-    {
-        $this->router->coreLoadedAndReady();
-        do_action('AHEE__EE_System__core_loaded_and_ready');
-        // always load template tags, because it's faster than checking if it's a front-end request, and many page
-        // builders require these even on the front-end
-        require_once EE_PUBLIC . 'template_tags.php';
-        do_action('AHEE__EE_System__set_hooks_for_shortcodes_modules_and_addons');
-    }
-
-
-    /**
-     * initialize
-     * this is the best place to begin initializing client code
-     *
-     * @access public
-     * @return void
-     */
-    public function initialize()
-    {
-        do_action('AHEE__EE_System__initialize');
-        add_filter(
-            'safe_style_css',
-            function ($styles) {
-                $styles[] = 'display';
-                $styles[] = 'visibility';
-                $styles[] = 'position';
-                $styles[] = 'top';
-                $styles[] = 'right';
-                $styles[] = 'bottom';
-                $styles[] = 'left';
-                $styles[] = 'resize';
-                $styles[] = 'max-width';
-                $styles[] = 'max-height';
-                return $styles;
-            }
-        );
-    }
-
-
-    /**
-     * initialize_last
-     * this is run really late during the WP init hook point, and ensures that mostly everything else that needs to
-     * initialize has done so
-     *
-     * @access public
-     * @return void
-     * @throws Exception
-     */
-    public function initialize_last()
-    {
-        $this->router->initializeLast();
-        do_action('AHEE__EE_System__initialize_last');
-        /** @var EventEspresso\core\domain\services\custom_post_types\RewriteRules $rewrite_rules */
-        $rewrite_rules = $this->loader->getShared(
-            'EventEspresso\core\domain\services\custom_post_types\RewriteRules'
-        );
-        $rewrite_rules->flushRewriteRules();
-        add_action('admin_bar_init', [$this, 'addEspressoToolbar']);
-    }
-
-
-    /**
-     * @return void
-     */
-    public function addEspressoToolbar()
-    {
-        $this->loader->getShared(
-            'EventEspresso\core\domain\services\admin\AdminToolBar',
-            [$this->capabilities]
-        );
-    }
-
-
-    /**
-     * do_not_cache
-     * sets no cache headers and defines no cache constants for WP plugins
-     *
-     * @access public
-     * @return void
-     */
-    public static function do_not_cache()
-    {
-        // set no cache constants
-        if (! defined('DONOTCACHEPAGE')) {
-            define('DONOTCACHEPAGE', true);
-        }
-        if (! defined('DONOTCACHCEOBJECT')) {
-            define('DONOTCACHCEOBJECT', true);
-        }
-        if (! defined('DONOTCACHEDB')) {
-            define('DONOTCACHEDB', true);
-        }
-        // add no cache headers
-        add_action('send_headers', ['EE_System', 'nocache_headers'], 10);
-        // plus a little extra for nginx and Google Chrome
-        add_filter('nocache_headers', ['EE_System', 'extra_nocache_headers'], 10, 1);
-        // prevent browsers from prefetching of the rel='next' link, because it may contain content that interferes with the registration process
-        remove_action('wp_head', 'adjacent_posts_rel_link_wp_head');
-    }
-
-
-    /**
-     *    extra_nocache_headers
-     *
-     * @access    public
-     * @param $headers
-     * @return    array
-     */
-    public static function extra_nocache_headers($headers): array
-    {
-        // for NGINX
-        $headers['X-Accel-Expires'] = 0;
-        // plus extra for Google Chrome since it doesn't seem to respect "no-cache", but WILL respect "no-store"
-        $headers['Cache-Control'] = 'no-store, no-cache, must-revalidate, max-age=0';
-        return $headers;
-    }
-
-
-    /**
-     *    nocache_headers
-     *
-     * @access    public
-     * @return    void
-     */
-    public static function nocache_headers()
-    {
-        nocache_headers();
-    }
-
-
-    /**
-     * simply hooks into "wp_list_pages_exclude" filter (for wp_list_pages method) and makes sure EE critical pages are
-     * never returned with the function.
-     *
-     * @param array $exclude_array any existing pages being excluded are in this array.
-     * @return array
-     */
-    public function remove_pages_from_wp_list_pages(array $exclude_array): array
-    {
-        return array_merge($exclude_array, $this->registry->CFG->core->get_critical_pages_array());
-    }
+	 *    set_hooks_for_core
+	 *
+	 * @access public
+	 * @return    void
+	 * @throws EE_Error
+	 */
+	public function set_hooks_for_core()
+	{
+		$this->_deactivate_incompatible_addons();
+		do_action('AHEE__EE_System__set_hooks_for_core');
+		$this->loader->getShared('EventEspresso\core\domain\values\session\SessionLifespan');
+		// caps need to be initialized on every request so that capability maps are set.
+		// @see https://events.codebasehq.com/projects/event-espresso/tickets/8674
+		$this->capabilities->init_caps();
+	}
+
+
+	/**
+	 * Using the information gathered in EE_System::_incompatible_addon_error,
+	 * deactivates any addons considered incompatible with the current version of EE
+	 */
+	private function _deactivate_incompatible_addons()
+	{
+		$incompatible_addons = get_option('ee_incompatible_addons', []);
+		if (! empty($incompatible_addons)) {
+			$active_plugins = get_option('active_plugins', []);
+			foreach ($active_plugins as $active_plugin) {
+				foreach ($incompatible_addons as $incompatible_addon) {
+					if (strpos($active_plugin, $incompatible_addon) !== false) {
+						$this->request->unSetRequestParams(['activate'], true);
+						espresso_deactivate_plugin($active_plugin);
+					}
+				}
+			}
+		}
+	}
+
+
+	/**
+	 *    perform_activations_upgrades_and_migrations
+	 *
+	 * @access public
+	 * @return    void
+	 */
+	public function perform_activations_upgrades_and_migrations()
+	{
+		do_action('AHEE__EE_System__perform_activations_upgrades_and_migrations');
+	}
+
+
+	/**
+	 * @return void
+	 * @throws DomainException
+	 */
+	public function load_CPTs_and_session()
+	{
+		do_action('AHEE__EE_System__load_CPTs_and_session__start');
+		$this->register_custom_taxonomies->registerCustomTaxonomies();
+		$this->register_custom_post_types->registerCustomPostTypes();
+		$this->register_custom_taxonomy_terms->registerCustomTaxonomyTerms();
+		do_action('AHEE__EE_System__load_CPTs_and_session__complete');
+	}
+
+
+	/**
+	 * load_controllers
+	 * this is the best place to load any additional controllers that needs access to EE core.
+	 * it is expected that all basic core EE systems, that are not dependant on the current request are loaded at this
+	 * time
+	 *
+	 * @access public
+	 * @return void
+	 * @throws Exception
+	 */
+	public function load_controllers()
+	{
+		do_action('AHEE__EE_System__load_controllers__start');
+		$this->router->loadControllers();
+		do_action('AHEE__EE_System__load_controllers__complete');
+	}
+
+
+	/**
+	 * core_loaded_and_ready
+	 * all of the basic EE core should be loaded at this point and available regardless of M-Mode
+	 *
+	 * @access public
+	 * @return void
+	 * @throws Exception
+	 */
+	public function core_loaded_and_ready()
+	{
+		$this->router->coreLoadedAndReady();
+		do_action('AHEE__EE_System__core_loaded_and_ready');
+		// always load template tags, because it's faster than checking if it's a front-end request, and many page
+		// builders require these even on the front-end
+		require_once EE_PUBLIC . 'template_tags.php';
+		do_action('AHEE__EE_System__set_hooks_for_shortcodes_modules_and_addons');
+	}
+
+
+	/**
+	 * initialize
+	 * this is the best place to begin initializing client code
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public function initialize()
+	{
+		do_action('AHEE__EE_System__initialize');
+		add_filter(
+			'safe_style_css',
+			function ($styles) {
+				$styles[] = 'display';
+				$styles[] = 'visibility';
+				$styles[] = 'position';
+				$styles[] = 'top';
+				$styles[] = 'right';
+				$styles[] = 'bottom';
+				$styles[] = 'left';
+				$styles[] = 'resize';
+				$styles[] = 'max-width';
+				$styles[] = 'max-height';
+				return $styles;
+			}
+		);
+	}
+
+
+	/**
+	 * initialize_last
+	 * this is run really late during the WP init hook point, and ensures that mostly everything else that needs to
+	 * initialize has done so
+	 *
+	 * @access public
+	 * @return void
+	 * @throws Exception
+	 */
+	public function initialize_last()
+	{
+		$this->router->initializeLast();
+		do_action('AHEE__EE_System__initialize_last');
+		/** @var EventEspresso\core\domain\services\custom_post_types\RewriteRules $rewrite_rules */
+		$rewrite_rules = $this->loader->getShared(
+			'EventEspresso\core\domain\services\custom_post_types\RewriteRules'
+		);
+		$rewrite_rules->flushRewriteRules();
+		add_action('admin_bar_init', [$this, 'addEspressoToolbar']);
+	}
+
+
+	/**
+	 * @return void
+	 */
+	public function addEspressoToolbar()
+	{
+		$this->loader->getShared(
+			'EventEspresso\core\domain\services\admin\AdminToolBar',
+			[$this->capabilities]
+		);
+	}
+
+
+	/**
+	 * do_not_cache
+	 * sets no cache headers and defines no cache constants for WP plugins
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public static function do_not_cache()
+	{
+		// set no cache constants
+		if (! defined('DONOTCACHEPAGE')) {
+			define('DONOTCACHEPAGE', true);
+		}
+		if (! defined('DONOTCACHCEOBJECT')) {
+			define('DONOTCACHCEOBJECT', true);
+		}
+		if (! defined('DONOTCACHEDB')) {
+			define('DONOTCACHEDB', true);
+		}
+		// add no cache headers
+		add_action('send_headers', ['EE_System', 'nocache_headers'], 10);
+		// plus a little extra for nginx and Google Chrome
+		add_filter('nocache_headers', ['EE_System', 'extra_nocache_headers'], 10, 1);
+		// prevent browsers from prefetching of the rel='next' link, because it may contain content that interferes with the registration process
+		remove_action('wp_head', 'adjacent_posts_rel_link_wp_head');
+	}
+
+
+	/**
+	 *    extra_nocache_headers
+	 *
+	 * @access    public
+	 * @param $headers
+	 * @return    array
+	 */
+	public static function extra_nocache_headers($headers): array
+	{
+		// for NGINX
+		$headers['X-Accel-Expires'] = 0;
+		// plus extra for Google Chrome since it doesn't seem to respect "no-cache", but WILL respect "no-store"
+		$headers['Cache-Control'] = 'no-store, no-cache, must-revalidate, max-age=0';
+		return $headers;
+	}
+
+
+	/**
+	 *    nocache_headers
+	 *
+	 * @access    public
+	 * @return    void
+	 */
+	public static function nocache_headers()
+	{
+		nocache_headers();
+	}
+
+
+	/**
+	 * simply hooks into "wp_list_pages_exclude" filter (for wp_list_pages method) and makes sure EE critical pages are
+	 * never returned with the function.
+	 *
+	 * @param array $exclude_array any existing pages being excluded are in this array.
+	 * @return array
+	 */
+	public function remove_pages_from_wp_list_pages(array $exclude_array): array
+	{
+		return array_merge($exclude_array, $this->registry->CFG->core->get_critical_pages_array());
+	}
 }

Spacing +22 added lines, -22 removed lines

@@ -131,7 +131,7 @@ 
         ?FeatureFlags $feature = null
     ): EE_System {
         // check if class object is instantiated
-        if (! self::$_instance instanceof EE_System) {
+        if ( ! self::$_instance instanceof EE_System) {
             self::$_instance = new self($loader, $maintenance_mode, $registry, $request, $router, $feature);
         }
         return self::$_instance;
@@ -350,10 +350,10 @@ 
         /** @var Domain $domain */
         $domain = DomainFactory::getEventEspressoCoreDomain();
         if ($domain->isCaffeinated() && ! $brew instanceof EE_Brewing_Regular) {
-            require_once EE_CAFF_PATH . 'brewing_regular.php';
+            require_once EE_CAFF_PATH.'brewing_regular.php';
             /** @var EE_Brewing_Regular $brew */
             $brew = LoaderFactory::getLoader()->getShared(EE_Brewing_Regular::class);
-            if (! $this->feature->allowed('use_edd_plugin_licensing')) {
+            if ( ! $this->feature->allowed('use_edd_plugin_licensing')) {
                 $brew->initializePUE();
             }
             add_action(
@@ -487,11 +487,11 @@ 
     private function fix_espresso_db_upgrade_option($espresso_db_update = null): array
     {
         do_action('FHEE__EE_System__manage_fix_espresso_db_upgrade_option__begin', $espresso_db_update);
-        if (! $espresso_db_update) {
+        if ( ! $espresso_db_update) {
             $espresso_db_update = get_option('espresso_db_update');
         }
         // check that option is an array
-        if (! is_array($espresso_db_update)) {
+        if ( ! is_array($espresso_db_update)) {
             // if option is FALSE, then it never existed
             if ($espresso_db_update === false) {
                 // make $espresso_db_update an array and save option with autoload OFF
@@ -511,10 +511,10 @@ 
                     // so it must be numerically-indexed, where values are versions installed...
                     // fix it!
                     $version_string                         = $should_be_array;
-                    $corrected_db_update[ $version_string ] = ['unknown-date'];
+                    $corrected_db_update[$version_string] = ['unknown-date'];
                 } else {
                     // ok it checks out
-                    $corrected_db_update[ $should_be_version_string ] = $should_be_array;
+                    $corrected_db_update[$should_be_version_string] = $should_be_array;
                 }
             }
             $espresso_db_update = $corrected_db_update;
@@ -546,7 +546,7 @@ 
     {
         $request_type = $this->detect_req_type();
         // only initialize system if we're not in maintenance mode.
-        if (! MaintenanceStatus::isFullSite()) {
+        if ( ! MaintenanceStatus::isFullSite()) {
             /** @var EventEspresso\core\domain\services\custom_post_types\RewriteRules $rewrite_rules */
             $rewrite_rules = $this->loader->getShared(
                 'EventEspresso\core\domain\services\custom_post_types\RewriteRules'
@@ -602,13 +602,13 @@ 
      */
     public function update_list_of_installed_versions($version_history = null, $current_version_to_add = null): bool
     {
-        if (! $version_history) {
+        if ( ! $version_history) {
             $version_history = $this->fix_espresso_db_upgrade_option($version_history);
         }
         if ($current_version_to_add === null) {
             $current_version_to_add = espresso_version();
         }
-        $version_history[ $current_version_to_add ][] = date('Y-m-d H:i:s', time());
+        $version_history[$current_version_to_add][] = date('Y-m-d H:i:s', time());
         // re-save
         return update_option('espresso_db_update', $version_history);
     }
@@ -776,7 +776,7 @@ 
             foreach ($activation_history as $version => $activation_dates) {
                 // check there is a record of when this version was activated.
                 // Otherwise, mark it as unknown
-                if (! $activation_dates) {
+                if ( ! $activation_dates) {
                     $activation_dates = ['unknown-date'];
                 }
                 $activation_dates = is_string($activation_dates)
@@ -872,7 +872,7 @@ 
     private function _parse_model_names()
     {
         // get all the files in the EE_MODELS folder that end in .model.php
-        $models                 = glob(EE_MODELS . '*.model.php');
+        $models                 = glob(EE_MODELS.'*.model.php');
         $model_names            = [];
         $non_abstract_db_models = [];
         foreach ($models as $model) {
@@ -881,9 +881,9 @@ 
             $short_name      = str_replace('EEM_', '', $classname);
             $reflectionClass = new ReflectionClass($classname);
             if ($reflectionClass->isSubclassOf('EEM_Base') && ! $reflectionClass->isAbstract()) {
-                $non_abstract_db_models[ $short_name ] = $classname;
+                $non_abstract_db_models[$short_name] = $classname;
             }
-            $model_names[ $short_name ] = $classname;
+            $model_names[$short_name] = $classname;
         }
         $this->registry->models                 = apply_filters('FHEE__EE_System__parse_model_names', $model_names);
         $this->registry->non_abstract_db_models = apply_filters(
@@ -967,7 +967,7 @@ 
         $class_names = WordPressHooks::getClassNamesForAllCallbacksOnHook(
             'AHEE__EE_System__register_shortcodes_modules_and_addons'
         );
-        if (! empty($class_names)) {
+        if ( ! empty($class_names)) {
             $msg = esc_html__(
                 'The following plugins, addons, or modules appear to be incompatible with this version of Event Espresso and were automatically deactivated to avoid fatal errors:',
                 'event_espresso'
@@ -979,7 +979,7 @@ 
                             ['EE_', 'EEM_', 'EED_', 'EES_', 'EEW_'],
                             '',
                             $class_name
-                        ) . '</b></li>';
+                        ).'</b></li>';
             }
             $msg .= '</ul>';
             $msg .= esc_html__(
@@ -1048,7 +1048,7 @@ 
     private function _deactivate_incompatible_addons()
     {
         $incompatible_addons = get_option('ee_incompatible_addons', []);
-        if (! empty($incompatible_addons)) {
+        if ( ! empty($incompatible_addons)) {
             $active_plugins = get_option('active_plugins', []);
             foreach ($active_plugins as $active_plugin) {
                 foreach ($incompatible_addons as $incompatible_addon) {
@@ -1120,7 +1120,7 @@ 
         do_action('AHEE__EE_System__core_loaded_and_ready');
         // always load template tags, because it's faster than checking if it's a front-end request, and many page
         // builders require these even on the front-end
-        require_once EE_PUBLIC . 'template_tags.php';
+        require_once EE_PUBLIC.'template_tags.php';
         do_action('AHEE__EE_System__set_hooks_for_shortcodes_modules_and_addons');
     }
 
@@ -1137,7 +1137,7 @@ 
         do_action('AHEE__EE_System__initialize');
         add_filter(
             'safe_style_css',
-            function ($styles) {
+            function($styles) {
                 $styles[] = 'display';
                 $styles[] = 'visibility';
                 $styles[] = 'position';
@@ -1198,13 +1198,13 @@ 
     public static function do_not_cache()
     {
         // set no cache constants
-        if (! defined('DONOTCACHEPAGE')) {
+        if ( ! defined('DONOTCACHEPAGE')) {
             define('DONOTCACHEPAGE', true);
         }
-        if (! defined('DONOTCACHCEOBJECT')) {
+        if ( ! defined('DONOTCACHCEOBJECT')) {
             define('DONOTCACHCEOBJECT', true);
         }
-        if (! defined('DONOTCACHEDB')) {
+        if ( ! defined('DONOTCACHEDB')) {
             define('DONOTCACHEDB', true);
         }
         // add no cache headers

core/EE_Dependency_Map.core.php

Indentation +1160 added lines, -1160 removed lines

@@ -20,1164 +20,1164 @@
  */
 class EE_Dependency_Map
 {
-    /**
-     * This means that the requested class dependency is not present in the dependency map
-     */
-    const not_registered = 0;
-
-    /**
-     * This instructs class loaders to ALWAYS return a newly instantiated object for the requested class.
-     */
-    const load_new_object = 1;
-
-    /**
-     * This instructs class loaders to return a previously instantiated and cached object for the requested class.
-     * IF a previously instantiated object does not exist, a new one will be created and added to the cache.
-     */
-    const load_from_cache = 2;
-
-    /**
-     * When registering a dependency,
-     * this indicates to keep any existing dependencies that already exist,
-     * and simply discard any new dependencies declared in the incoming data
-     */
-    const KEEP_EXISTING_DEPENDENCIES = 0;
-
-    /**
-     * When registering a dependency,
-     * this indicates to overwrite any existing dependencies that already exist using the incoming data
-     */
-    const OVERWRITE_DEPENDENCIES = 1;
-
-    protected static ?EE_Dependency_Map $_instance = null;
-
-    private ClassInterfaceCache $class_cache;
-
-    protected ?RequestInterface $request = null;
-
-    protected ?LegacyRequestInterface $legacy_request = null;
-
-    protected ?ResponseInterface $response = null;
-
-    protected ?LoaderInterface $loader = null;
-
-    protected array $_dependency_map = [];
-
-    protected array $_class_loaders = [];
-
-
-    /**
-     * EE_Dependency_Map constructor.
-     *
-     * @param ClassInterfaceCache $class_cache
-     */
-    protected function __construct(ClassInterfaceCache $class_cache)
-    {
-        $this->class_cache = $class_cache;
-        do_action('EE_Dependency_Map____construct', $this);
-    }
-
-
-    /**
-     * @return void
-     * @throws InvalidAliasException
-     */
-    public function initialize()
-    {
-        $this->_register_core_dependencies();
-        $this->_register_core_class_loaders();
-        $this->_register_core_aliases();
-    }
-
-
-    /**
-     * @singleton method used to instantiate class object
-     * @param ClassInterfaceCache|null $class_cache
-     * @return EE_Dependency_Map
-     */
-    public static function instance(ClassInterfaceCache $class_cache = null): EE_Dependency_Map
-    {
-        // check if class object is instantiated, and instantiated properly
-        if (
-            ! EE_Dependency_Map::$_instance instanceof EE_Dependency_Map
-            && $class_cache instanceof ClassInterfaceCache
-        ) {
-            EE_Dependency_Map::$_instance = new EE_Dependency_Map($class_cache);
-        }
-        return EE_Dependency_Map::$_instance;
-    }
-
-
-    /**
-     * @param RequestInterface $request
-     */
-    public function setRequest(RequestInterface $request)
-    {
-        $this->request = $request;
-    }
-
-
-    /**
-     * @param LegacyRequestInterface $legacy_request
-     */
-    public function setLegacyRequest(LegacyRequestInterface $legacy_request)
-    {
-        $this->legacy_request = $legacy_request;
-    }
-
-
-    /**
-     * @param ResponseInterface $response
-     */
-    public function setResponse(ResponseInterface $response)
-    {
-        $this->response = $response;
-    }
-
-
-    /**
-     * @param LoaderInterface $loader
-     */
-    public function setLoader(LoaderInterface $loader)
-    {
-        $this->loader = $loader;
-    }
-
-
-    /**
-     * @param string $class
-     * @param array  $dependencies
-     * @param int    $overwrite
-     * @return bool
-     */
-    public static function register_dependencies(
-        string $class,
-        array $dependencies,
-        int $overwrite = EE_Dependency_Map::KEEP_EXISTING_DEPENDENCIES
-    ): bool {
-        return EE_Dependency_Map::$_instance->registerDependencies($class, $dependencies, $overwrite);
-    }
-
-
-    /**
-     * Assigns an array of class names and corresponding load sources (new or cached)
-     * to the class specified by the first parameter.
-     * IMPORTANT !!!
-     * The order of elements in the incoming $dependencies array MUST match
-     * the order of the constructor parameters for the class in question.
-     * This is especially important when overriding any existing dependencies that are registered.
-     * the third parameter controls whether any duplicate dependencies are overwritten or not.
-     *
-     * @param string $class
-     * @param array  $dependencies
-     * @param int    $overwrite
-     * @return bool
-     */
-    public function registerDependencies(
-        string $class,
-        array $dependencies,
-        int $overwrite = EE_Dependency_Map::KEEP_EXISTING_DEPENDENCIES
-    ): bool {
-        if (empty($dependencies)) {
-            return false;
-        }
-        $class      = trim($class, '\\');
-        $registered = false;
-        if (empty(EE_Dependency_Map::$_instance->_dependency_map[ $class ])) {
-            EE_Dependency_Map::$_instance->_dependency_map[ $class ] = [];
-        }
-        // we need to make sure that any aliases used when registering a dependency
-        // get resolved to the correct class name
-        foreach ($dependencies as $dependency => $load_source) {
-            $alias = EE_Dependency_Map::$_instance->getFqnForAlias($dependency);
-            if (
-                $overwrite === EE_Dependency_Map::OVERWRITE_DEPENDENCIES
-                || ! isset(
-                    EE_Dependency_Map::$_instance->_dependency_map[ $class ][ $dependency ],
-                    EE_Dependency_Map::$_instance->_dependency_map[ $class ][ $alias ]
-                )
-            ) {
-                unset($dependencies[ $dependency ]);
-                $dependencies[ $alias ] = $load_source;
-                $registered             = true;
-            }
-        }
-        // now add our two lists of dependencies together.
-        // using Union (+=) favours the arrays in precedence from left to right,
-        // so $dependencies is NOT overwritten because it is listed first
-        // ie: with A = B + C, entries in B take precedence over duplicate entries in C
-        // Union is way faster than array_merge() but should be used with caution...
-        // especially with numerically indexed arrays
-        $dependencies += EE_Dependency_Map::$_instance->_dependency_map[ $class ];
-        // now we need to ensure that the resulting dependencies
-        // array only has the entries that are required for the class
-        // so first count how many dependencies were originally registered for the class
-        $dependency_count = count(EE_Dependency_Map::$_instance->_dependency_map[ $class ]);
-        // if that count is non-zero (meaning dependencies were already registered)
-        EE_Dependency_Map::$_instance->_dependency_map[ $class ] = $dependency_count
-            // then truncate the  final array to match that count
-            ? array_slice($dependencies, 0, $dependency_count)
-            // otherwise just take the incoming array because nothing previously existed
-            : $dependencies;
-        return $registered
-            || count(EE_Dependency_Map::$_instance->_dependency_map[ $class ]) === count($dependencies);
-    }
-
-
-    /**
-     * @param string          $class_name
-     * @param callable|string $loader
-     * @param bool            $overwrite
-     * @return bool
-     * @throws DomainException
-     */
-    public static function register_class_loader(
-        string $class_name,
-        $loader = 'load_core',
-        bool $overwrite = false
-    ): bool {
-        return EE_Dependency_Map::$_instance->registerClassLoader($class_name, $loader, $overwrite);
-    }
-
-
-    /**
-     * @param string         $class_name
-     * @param Closure|string $loader
-     * @param bool           $overwrite
-     * @return bool
-     * @throws DomainException
-     */
-    public function registerClassLoader(string $class_name, $loader = 'load_core', bool $overwrite = false): bool
-    {
-        if (! $loader instanceof Closure && strpos($class_name, '\\') !== false) {
-            throw new DomainException(
-                esc_html__('Don\'t use class loaders for FQCNs.', 'event_espresso')
-            );
-        }
-        // check that loader is callable or method starts with "load_" and exists in EE_Registry
-        if (
-            ! is_callable($loader)
-            && (
-                strpos($loader, 'load_') !== 0
-                || ! method_exists('EE_Registry', $loader)
-            )
-        ) {
-            throw new DomainException(
-                sprintf(
-                    esc_html__(
-                        '"%1$s" is not a valid loader method on EE_Registry.',
-                        'event_espresso'
-                    ),
-                    $loader
-                )
-            );
-        }
-        $class_name = EE_Dependency_Map::$_instance->getFqnForAlias($class_name);
-        if ($overwrite || ! isset(EE_Dependency_Map::$_instance->_class_loaders[ $class_name ])) {
-            EE_Dependency_Map::$_instance->_class_loaders[ $class_name ] = $loader;
-            return true;
-        }
-        return false;
-    }
-
-
-    /**
-     * @return array
-     */
-    public function dependency_map(): array
-    {
-        return $this->_dependency_map;
-    }
-
-
-    /**
-     * returns TRUE if dependency map contains a listing for the provided class name
-     *
-     * @param string $class_name
-     * @return boolean
-     */
-    public function has(string $class_name = ''): bool
-    {
-        // all legacy models have the same dependencies
-        if (strpos($class_name, 'EEM_') === 0) {
-            $class_name = 'LEGACY_MODELS';
-        }
-        return isset($this->_dependency_map[ $class_name ]);
-    }
-
-
-    /**
-     * returns TRUE if dependency map contains a listing for the provided class name AND dependency
-     *
-     * @param string $class_name
-     * @param string $dependency
-     * @return bool
-     */
-    public function has_dependency_for_class(string $class_name = '', string $dependency = ''): bool
-    {
-        // all legacy models have the same dependencies
-        if (strpos($class_name, 'EEM_') === 0) {
-            $class_name = 'LEGACY_MODELS';
-        }
-        $dependency = $this->getFqnForAlias($dependency, $class_name);
-        return isset($this->_dependency_map[ $class_name ][ $dependency ]);
-    }
-
-
-    /**
-     * returns loading strategy for whether a previously cached dependency should be loaded or a new instance returned
-     *
-     * @param string $class_name
-     * @param string $dependency
-     * @return int
-     */
-    public function loading_strategy_for_class_dependency(string $class_name = '', string $dependency = ''): int
-    {
-        // all legacy models have the same dependencies
-        if (strpos($class_name, 'EEM_') === 0) {
-            $class_name = 'LEGACY_MODELS';
-        }
-        $dependency = $this->getFqnForAlias($dependency);
-        return $this->has_dependency_for_class($class_name, $dependency)
-            ? $this->_dependency_map[ $class_name ][ $dependency ]
-            : EE_Dependency_Map::not_registered;
-    }
-
-
-    /**
-     * @param string $class_name
-     * @return string | Closure
-     */
-    public function class_loader(string $class_name)
-    {
-        // all legacy models use load_model()
-        if (strpos($class_name, 'EEM_') === 0) {
-            return 'load_model';
-        }
-        // EE_CPT_*_Strategy classes like EE_CPT_Event_Strategy, EE_CPT_Venue_Strategy, etc
-        // perform strpos() first to avoid loading regex every time we load a class
-        if (
-            strpos($class_name, 'EE_CPT_') === 0
-            && preg_match('/^EE_CPT_([a-zA-Z]+)_Strategy$/', $class_name)
-        ) {
-            return 'load_core';
-        }
-        $class_name = $this->getFqnForAlias($class_name);
-        return $this->_class_loaders[ $class_name ] ?? '';
-    }
-
-
-    /**
-     * @return array
-     */
-    public function class_loaders(): array
-    {
-        return $this->_class_loaders;
-    }
-
-
-    /**
-     * adds an alias for a classname
-     *
-     * @param string $fqcn      the class name that should be used (concrete class to replace interface)
-     * @param string $alias     the class name that would be type hinted for (abstract parent or interface)
-     * @param string $for_class the class that has the dependency (is type hinting for the interface)
-     * @throws InvalidAliasException
-     */
-    public function add_alias(string $fqcn, string $alias, string $for_class = '')
-    {
-        $this->class_cache->addAlias($fqcn, $alias, $for_class);
-    }
-
-
-    /**
-     * Returns TRUE if the provided fully qualified name IS an alias
-     * WHY?
-     * Because if a class is type hinting for a concretion,
-     * then why would we need to find another class to supply it?
-     * ie: if a class asks for `Fully/Qualified/Namespace/SpecificClassName`,
-     * then give it an instance of `Fully/Qualified/Namespace/SpecificClassName`.
-     * Don't go looking for some substitute.
-     * Whereas if a class is type hinting for an interface...
-     * then we need to find an actual class to use.
-     * So the interface IS the alias for some other FQN,
-     * and we need to find out if `Fully/Qualified/Namespace/SomeInterface`
-     * represents some other class.
-     *
-     * @param string $fqn
-     * @param string $for_class
-     * @return bool
-     */
-    public function isAlias(string $fqn = '', string $for_class = ''): bool
-    {
-        return $this->class_cache->isAlias($fqn, $for_class);
-    }
-
-
-    /**
-     * Returns a FQN for provided alias if one exists, otherwise returns the original $alias
-     * functions recursively, so that multiple aliases can be used to drill down to a FQN
-     *  for example:
-     *      if the following two entries were added to the _aliases array:
-     *          array(
-     *              'interface_alias'           => 'some\namespace\interface'
-     *              'some\namespace\interface'  => 'some\namespace\classname'
-     *          )
-     *      then one could use EE_Registry::instance()->create( 'interface_alias' )
-     *      to load an instance of 'some\namespace\classname'
-     *
-     * @param string $alias
-     * @param string $for_class
-     * @return string
-     */
-    public function getFqnForAlias(string $alias = '', string $for_class = ''): string
-    {
-        return $this->class_cache->getFqnForAlias($alias, $for_class);
-    }
-
-
-    /**
-     * Registers the core dependencies and whether a previously instantiated object should be loaded from the cache,
-     * if one exists, or whether a new object should be generated every time the requested class is loaded.
-     * This is done by using the following class constants:
-     *        EE_Dependency_Map::load_from_cache - loads previously instantiated object
-     *        EE_Dependency_Map::load_new_object - generates a new object every time
-     */
-    protected function _register_core_dependencies()
-    {
-        $this->_dependency_map = [
-            'EE_Admin'                                                                                                           => [
-                'EventEspresso\core\services\loaders\Loader'  => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_Maintenance_Mode'                                                                                                => [
-                'EventEspresso\core\services\loaders\Loader'  => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_Request_Handler'                                                                                                 => [
-                'EventEspresso\core\services\request\Request'  => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Response' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_System'                                                                                                   => [
-                'EventEspresso\core\services\loaders\Loader'                   => EE_Dependency_Map::load_from_cache,
-                'EE_Maintenance_Mode'                                          => EE_Dependency_Map::load_from_cache,
-                'EE_Registry'                                                  => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Request'                  => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\routing\Router'                   => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\domain\services\capabilities\FeatureFlags' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_Session'                                                                                                         => [
-                'EventEspresso\core\services\cache\TransientCacheStorage'  => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\domain\values\session\SessionLifespan' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Request'              => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\session\SessionStartHandler'  => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\encryption\Base64Encoder'     => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\session\SessionStartHandler'                                                            => [
-                'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_Cart'                                                                                                            => [
-                'EE_Session' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_Messenger_Collection_Loader'                                                                                     => [
-                'EE_Messenger_Collection' => EE_Dependency_Map::load_new_object,
-            ],
-            'EE_Message_Type_Collection_Loader'                                                                                  => [
-                'EE_Message_Type_Collection' => EE_Dependency_Map::load_new_object,
-            ],
-            'EE_Message_Resource_Manager'                                                                                        => [
-                'EE_Messenger_Collection_Loader'    => EE_Dependency_Map::load_new_object,
-                'EE_Message_Type_Collection_Loader' => EE_Dependency_Map::load_new_object,
-                'EEM_Message_Template_Group'        => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_Message_Factory'                                                                                                 => [
-                'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_messages'                                                                                                        => [
-                'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_Messages_Generator'                                                                                              => [
-                'EE_Messages_Queue'                    => EE_Dependency_Map::load_new_object,
-                'EE_Messages_Data_Handler_Collection'  => EE_Dependency_Map::load_new_object,
-                'EE_Message_Template_Group_Collection' => EE_Dependency_Map::load_new_object,
-                'EEH_Parse_Shortcodes'                 => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_Messages_Processor'                                                                                              => [
-                'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_Messages_Queue'                                                                                                  => [
-                'EE_Message_Repository' => EE_Dependency_Map::load_new_object,
-            ],
-            'EE_Messages_Template_Defaults'                                                                                      => [
-                'EEM_Message_Template_Group' => EE_Dependency_Map::load_from_cache,
-                'EEM_Message_Template'       => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_Message_To_Generate_From_Request'                                                                                => [
-                'EE_Message_Resource_Manager'                 => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\commands\CommandBus'                                                                    => [
-                'EventEspresso\core\services\commands\CommandHandlerManager' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\services\commands\CommandHandler'                                                                     => [
-                'EE_Registry'         => EE_Dependency_Map::load_from_cache,
-                'CommandBusInterface' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\commands\CommandHandlerManager'                                                         => [
-                'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\commands\CompositeCommandHandler'                                                       => [
-                'EventEspresso\core\services\commands\CommandBus'     => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\commands\CommandFactory' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\commands\CommandFactory'                                                                => [
-                'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\commands\middleware\CapChecker'                                                         => [
-                'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker'                                                => [
-                'EE_Capabilities' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\services\capabilities\RegistrationsCapChecker'                                            => [
-                'EE_Capabilities' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\services\commands\registration\CreateRegistrationCommandHandler'                          => [
-                'EventEspresso\core\domain\services\registration\CreateRegistrationService' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\services\commands\registration\CopyRegistrationDetailsCommandHandler'                     => [
-                'EventEspresso\core\domain\services\registration\CopyRegistrationService' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\services\commands\registration\CopyRegistrationPaymentsCommandHandler'                    => [
-                'EventEspresso\core\domain\services\registration\CopyRegistrationService' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\services\commands\registration\CancelRegistrationAndTicketLineItemCommandHandler'         => [
-                'EventEspresso\core\domain\services\registration\CancelTicketLineItemService' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\services\commands\registration\UpdateRegistrationAndTransactionAfterChangeCommandHandler' => [
-                'EventEspresso\core\domain\services\registration\UpdateRegistrationService' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\services\commands\ticket\CreateTicketLineItemCommandHandler'                              => [
-                'EventEspresso\core\domain\services\ticket\CreateTicketLineItemService' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\services\commands\ticket\CancelTicketLineItemCommandHandler'                              => [
-                'EventEspresso\core\domain\services\ticket\CancelTicketLineItemService' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\services\registration\CancelRegistrationService'                                          => [
-                'EventEspresso\core\domain\services\ticket\CancelTicketLineItemService' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\services\commands\attendee\CreateAttendeeCommandHandler'                                  => [
-                'EEM_Attendee' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\values\session\SessionLifespan'                                                           => [
-                'EventEspresso\core\domain\values\session\SessionLifespanOption' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\caffeinated\admin\extend\registration_form\forms\SessionLifespanForm'                                 => [
-                'EventEspresso\core\domain\values\session\SessionLifespanOption' => EE_Dependency_Map::load_from_cache,
-                'EE_Registration_Config'                                         => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\caffeinated\admin\extend\registration_form\forms\SessionLifespanFormHandler'                          => [
-                'EventEspresso\core\domain\values\session\SessionLifespanOption' => EE_Dependency_Map::load_from_cache,
-                'EE_Config'                                                      => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\database\TableManager'                                                                  => [
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_Data_Migration_Class_Base'                                                                                       => [
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_DMS_Core_4_1_0'                                                                                                  => [
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_DMS_Core_4_2_0'                                                                                                  => [
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_DMS_Core_4_3_0'                                                                                                  => [
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_DMS_Core_4_4_0'                                                                                                  => [
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_DMS_Core_4_5_0'                                                                                                  => [
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_DMS_Core_4_6_0'                                                                                                  => [
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_DMS_Core_4_7_0'                                                                                                  => [
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_DMS_Core_4_8_0'                                                                                                  => [
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_DMS_Core_4_9_0'                                                                                                  => [
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_DMS_Core_4_10_0'                                                                                                 => [
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-                'EE_DMS_Core_4_9_0'                                  => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_DMS_Core_5_0_0'                                                                                                  => [
-                'EE_DMS_Core_4_10_0'                                 => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\assets\I18nRegistry'                                                                    => [
-                'EventEspresso\core\domain\Domain' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\assets\Registry'                                                                        => [
-                'EventEspresso\core\services\assets\AssetCollection' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\assets\AssetManifest'   => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\entities\shortcodes\EspressoCancelled'                                                    => [
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\entities\shortcodes\EspressoCheckout'                                                     => [
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\entities\shortcodes\EspressoEventAttendees'                                               => [
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\entities\shortcodes\EspressoEvents'                                                       => [
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\entities\shortcodes\EspressoThankYou'                                                     => [
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\entities\shortcodes\EspressoTicketSelector'                                               => [
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\entities\shortcodes\EspressoTxnPage'                                                      => [
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\cache\BasicCacheManager'                                                                => [
-                'EventEspresso\core\services\cache\TransientCacheStorage' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\cache\PostRelatedCacheManager'                                                          => [
-                'EventEspresso\core\services\cache\TransientCacheStorage' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\services\validation\email\EmailValidationService'                                         => [
-                'EE_Registration_Config'                     => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\values\EmailAddress'                                                                      => [
-                null,
-                'EventEspresso\core\domain\services\validation\email\EmailValidationService' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\orm\ModelFieldFactory'                                                                  => [
-                'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
-            ],
-            'LEGACY_MODELS'                                                                                                      => [
-                null,
-                'EventEspresso\core\services\database\ModelFieldFactory' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_Module_Request_Router'                                                                                           => [
-                'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_Registration_Processor'                                                                                          => [
-                'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\notifications\PersistentAdminNoticeManager'                                             => [
-                'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Request'                         => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\caffeinated\modules\recaptcha_invisible\InvisibleRecaptcha'                                           => [
-                'EE_Registration_Config' => EE_Dependency_Map::load_from_cache,
-                'EE_Session'             => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\modules\ticket_selector\DisplayTicketSelector'                                                        => [
-                'EventEspresso\core\domain\entities\users\CurrentUser' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Request'          => EE_Dependency_Map::load_from_cache,
-                'EE_Ticket_Selector_Config'                            => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\modules\ticket_selector\ProcessTicketSelector'                                                        => [
-                'EE_Core_Config'                                                          => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Request'                             => EE_Dependency_Map::load_from_cache,
-                'EE_Session'                                                              => EE_Dependency_Map::load_from_cache,
-                'EEM_Ticket'                                                              => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\modules\ticket_selector\TicketDatetimeAvailabilityTracker' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\modules\ticket_selector\ProcessTicketSelectorPostData'                                                => [
-                'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
-                'EEM_Event'                                   => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\modules\ticket_selector\TicketDatetimeAvailabilityTracker'                                            => [
-                'EEM_Datetime' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions'                                     => [
-                'EE_Core_Config'                             => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\services\custom_post_types\RegisterCustomPostTypes'                                       => [
-                'EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\services\custom_post_types\RegisterCustomTaxonomies'                                      => [
-                'EventEspresso\core\domain\entities\custom_post_types\CustomTaxonomyDefinitions' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_CPT_Strategy'                                                                                                    => [
-                'EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\domain\entities\custom_post_types\CustomTaxonomyDefinitions' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\loaders\ObjectIdentifier'                                                               => [
-                'EventEspresso\core\services\loaders\ClassInterfaceCache' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\CPTs\CptQueryModifier'                                                                           => [
-                null,
-                null,
-                null,
-                'EventEspresso\core\services\request\CurrentPage' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Request'     => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\loaders\Loader'      => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\dependencies\DependencyResolver'                                                        => [
-                'EventEspresso\core\services\container\Mirror'            => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\loaders\ClassInterfaceCache' => EE_Dependency_Map::load_from_cache,
-                'EE_Dependency_Map'                                       => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\routing\RouteMatchSpecificationDependencyResolver'                                      => [
-                'EventEspresso\core\services\container\Mirror'            => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\loaders\ClassInterfaceCache' => EE_Dependency_Map::load_from_cache,
-                'EE_Dependency_Map'                                       => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\routing\RouteMatchSpecificationFactory'                                                 => [
-                'EventEspresso\core\services\routing\RouteMatchSpecificationDependencyResolver' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\loaders\Loader'                                    => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\routing\RouteMatchSpecificationManager'                                                 => [
-                'EventEspresso\core\services\routing\RouteMatchSpecificationCollection' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\routing\RouteMatchSpecificationFactory'    => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\request\files\FilesDataHandler'                                                         => [
-                'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\libraries\batch\BatchRequestProcessor'                                                           => [
-                'EventEspresso\core\services\loaders\Loader'  => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\services\converters\RestApiSpoofer'                                                       => [
-                'WP_REST_Server'                                               => EE_Dependency_Map::load_from_cache,
-                'EED_Core_Rest_Api'                                            => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\libraries\rest_api\controllers\model\Read' => EE_Dependency_Map::load_from_cache,
-                null,
-            ],
-            'EventEspresso\core\services\routing\RouteHandler'                                                                   => [
-                'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\json\JsonDataNodeHandler'                => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\loaders\Loader'                          => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Request'                         => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\routing\RouteCollection'                 => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\json\JsonDataNodeHandler'                                                               => [
-                'EventEspresso\core\services\json\JsonDataNodeValidator' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\routing\Router'                                                                         => [
-                'EE_Dependency_Map'                                => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\loaders\Loader'       => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\routing\RouteHandler' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\assets\AssetManifest'                                                                   => [
-                'EventEspresso\core\domain\Domain' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\assets\AssetManifestFactory'                                                            => [
-                'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\assets\BaristaFactory'                                                                  => [
-                'EventEspresso\core\services\assets\AssetManifestFactory' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\loaders\Loader'              => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\services\capabilities\FeatureFlagsConfig' => [
-                'EventEspresso\core\domain\Domain'                                    => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\json\JsonDataHandler'                    => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\services\capabilities\FeatureFlags'       => [
-                'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\domain\services\capabilities\FeatureFlagsConfig'  => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\addon\AddonManager'                                                                     => [
-                'EventEspresso\core\services\addon\AddonCollection'              => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\Psr4Autoloader'                              => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\addon\api\v1\RegisterAddon'         => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\addon\api\IncompatibleAddonHandler' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\addon\api\ThirdPartyPluginHandler'  => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\addon\api\ThirdPartyPluginHandler'                                                      => [
-                'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\libraries\batch\JobHandlers\ExecuteBatchDeletion'                                                => [
-                'EventEspresso\core\services\orm\tree_traversal\NodeGroupDao' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\libraries\batch\JobHandlers\PreviewEventDeletion'                                                => [
-                'EventEspresso\core\services\orm\tree_traversal\NodeGroupDao' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\services\admin\events\data\PreviewDeletion'                                               => [
-                'EventEspresso\core\services\orm\tree_traversal\NodeGroupDao' => EE_Dependency_Map::load_from_cache,
-                'EEM_Event'                                                   => EE_Dependency_Map::load_from_cache,
-                'EEM_Datetime'                                                => EE_Dependency_Map::load_from_cache,
-                'EEM_Registration'                                            => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\services\admin\events\data\ConfirmDeletion'                                               => [
-                'EventEspresso\core\services\orm\tree_traversal\NodeGroupDao' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\request\CurrentPage'                                                                    => [
-                'EE_CPT_Strategy'                             => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\shortcodes\LegacyShortcodesManager'                                                     => [
-                'EE_Registry'                                     => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\CurrentPage' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\shortcodes\ShortcodesManager'                                                           => [
-                'EventEspresso\core\services\shortcodes\LegacyShortcodesManager' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\CurrentPage'                => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\entities\users\CurrentUser'                                                               => [
-                'EventEspresso\core\domain\entities\users\EventManagers' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\form\meta\InputTypes'                                                                   => [
-                'EventEspresso\core\services\form\meta\inputs\Block'    => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\form\meta\inputs\Button'   => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\form\meta\inputs\DateTime' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\form\meta\inputs\Input'    => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\form\meta\inputs\Number'   => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\form\meta\inputs\Phone'    => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\form\meta\inputs\Select'   => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\form\meta\inputs\Text'     => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\services\registration\form\v1\RegFormDependencyHandler'                                   => [
-                'EE_Dependency_Map' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\calculators\LineItemCalculator'                                                         => [
-                'EventEspresso\core\services\helpers\DecimalValues' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\helpers\DecimalValues'                                                                  => [
-                'EE_Currency_Config' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_Brewing_Regular'                                                                                                 => [
-                'EE_Dependency_Map'                                  => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\loaders\Loader'         => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\routing\RouteHandler'   => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\services\messages\MessageTemplateRequestData'                                             => [
-                'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\services\messages\MessageTemplateValidator'                                               => [
-                'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\services\messages\MessageTemplateManager'                                                 => [
-                'EEM_Message_Template'                                                   => EE_Dependency_Map::load_from_cache,
-                'EEM_Message_Template_Group'                                             => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\domain\services\messages\MessageTemplateRequestData' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\domain\services\messages\MessageTemplateValidator'   => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Request'                            => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\services\request\sanitizers\RequestSanitizer'                                                    => [
-                'EventEspresso\core\domain\services\validation\email\strategies\Basic' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EE_CPT_Event_Strategy'                                                    => [
-                null,
-                null,
-                'EE_Template_Config' => EE_Dependency_Map::load_from_cache,
-            ],
-            'EventEspresso\core\domain\services\licensing\LicenseKeyFormInput'                                                    => [
-                'EventEspresso\core\services\licensing\PluginLicense'  => EE_Dependency_Map::not_registered,
-                'EventEspresso\core\services\licensing\LicenseManager' => EE_Dependency_Map::load_from_cache,
-            ],
-        ];
-    }
-
-
-    /**
-     * Registers how core classes are loaded.
-     * This can either be done by simply providing the name of one of the EE_Registry loader methods such as:
-     *        'EE_Request_Handler' => 'load_core'
-     *        'EE_Messages_Queue'  => 'load_lib'
-     *        'EEH_Debug_Tools'    => 'load_helper'
-     * or, if greater control is required, by providing a custom closure. For example:
-     *        'Some_Class' => function () {
-     *            return new Some_Class();
-     *        },
-     * This is required for instantiating dependencies
-     * where an interface has been type hinted in a class constructor. For example:
-     *        'Required_Interface' => function () {
-     *            return new A_Class_That_Implements_Required_Interface();
-     *        },
-     */
-    protected function _register_core_class_loaders()
-    {
-        $this->_class_loaders = [
-            // load_core
-            'EE_Dependency_Map'                            => function () {
-                return $this;
-            },
-            'EE_Capabilities'                              => 'load_core',
-            'EE_Encryption'                                => 'load_core',
-            'EE_Front_Controller'                          => 'load_core',
-            'EE_Module_Request_Router'                     => 'load_core',
-            'EE_Registry'                                  => 'load_core',
-            'EE_Request'                                   => function () {
-                return $this->legacy_request;
-            },
-            'EventEspresso\core\services\request\Request'  => function () {
-                return $this->request;
-            },
-            'EventEspresso\core\services\request\Response' => function () {
-                return $this->response;
-            },
-            'EE_Base'                                      => 'load_core',
-            'EE_Request_Handler'                           => 'load_core',
-            'EE_Session'                                   => 'load_core',
-            'EE_Cron_Tasks'                                => 'load_core',
-            'EE_System'                                    => 'load_core',
-            'EE_Maintenance_Mode'                          => 'load_core',
-            'EE_Register_CPTs'                             => 'load_core',
-            'EE_Admin'                                     => 'load_core',
-            'EE_CPT_Strategy'                              => 'load_core',
-            // load_class
-            'EE_Registration_Processor'                    => 'load_class',
-            'EE_Transaction_Payments'                      => 'load_class',
-            'EE_Transaction_Processor'                     => 'load_class',
-            // load_lib
-            'EE_Message_Resource_Manager'                  => 'load_lib',
-            'EE_Message_Type_Collection'                   => 'load_lib',
-            'EE_Message_Type_Collection_Loader'            => 'load_lib',
-            'EE_Messenger_Collection'                      => 'load_lib',
-            'EE_Messenger_Collection_Loader'               => 'load_lib',
-            'EE_Messages_Processor'                        => 'load_lib',
-            'EE_Message_Repository'                        => 'load_lib',
-            'EE_Messages_Queue'                            => 'load_lib',
-            'EE_Messages_Data_Handler_Collection'          => 'load_lib',
-            'EE_Message_Template_Group_Collection'         => 'load_lib',
-            'EE_Payment_Method_Manager'                    => 'load_lib',
-            'EE_Payment_Processor'                         => 'load_core',
-            'EE_DMS_Core_4_1_0'                            => 'load_dms',
-            'EE_DMS_Core_4_2_0'                            => 'load_dms',
-            'EE_DMS_Core_4_3_0'                            => 'load_dms',
-            'EE_DMS_Core_4_5_0'                            => 'load_dms',
-            'EE_DMS_Core_4_6_0'                            => 'load_dms',
-            'EE_DMS_Core_4_7_0'                            => 'load_dms',
-            'EE_DMS_Core_4_8_0'                            => 'load_dms',
-            'EE_DMS_Core_4_9_0'                            => 'load_dms',
-            'EE_DMS_Core_4_10_0'                           => 'load_dms',
-            'EE_DMS_Core_5_0_0'                            => 'load_dms',
-            'EE_Messages_Generator'                        => static function () {
-                return EE_Registry::instance()->load_lib(
-                    'Messages_Generator',
-                    [],
-                    false,
-                    false
-                );
-            },
-            'EE_Messages_Template_Defaults'                => static function ($arguments = []) {
-                return EE_Registry::instance()->load_lib(
-                    'Messages_Template_Defaults',
-                    $arguments,
-                    false,
-                    false
-                );
-            },
-            // load_helper
-            'EEH_Parse_Shortcodes'                         => static function () {
-                if (EE_Registry::instance()->load_helper('Parse_Shortcodes')) {
-                    return new EEH_Parse_Shortcodes();
-                }
-                return null;
-            },
-            'EE_Template_Config'                           => static function () {
-                return EE_Config::instance()->template_settings;
-            },
-            'EE_Currency_Config'                           => static function () {
-                return EE_Currency_Config::getCurrencyConfig();
-            },
-            'EE_Registration_Config'                       => static function () {
-                return EE_Config::instance()->registration;
-            },
-            'EE_Core_Config'                               => static function () {
-                return EE_Config::instance()->core;
-            },
-            'EventEspresso\core\services\loaders\Loader'   => static function () {
-                return LoaderFactory::getLoader();
-            },
-            'EE_Network_Config'                            => static function () {
-                return EE_Network_Config::instance();
-            },
-            'EE_Config'                                    => static function () {
-                return EE_Config::instance();
-            },
-            'EventEspresso\core\domain\Domain'             => static function () {
-                return DomainFactory::getEventEspressoCoreDomain();
-            },
-            'EE_Admin_Config'                              => static function () {
-                return EE_Config::instance()->admin;
-            },
-            'EE_Organization_Config'                       => static function () {
-                return EE_Config::instance()->organization;
-            },
-            'EE_Network_Core_Config'                       => static function () {
-                return EE_Network_Config::instance()->core;
-            },
-            'EE_Environment_Config'                        => static function () {
-                return EE_Config::instance()->environment;
-            },
-            'EED_Core_Rest_Api'                            => static function () {
-                return EED_Core_Rest_Api::instance();
-            },
-            'WP_REST_Server'                               => static function () {
-                return rest_get_server();
-            },
-            'EventEspresso\core\Psr4Autoloader'            => static function () {
-                return EE_Psr4AutoloaderInit::psr4_loader();
-            },
-            'EE_Ticket_Selector_Config'                    => function () {
-                return EE_Config::instance()->template_settings->EED_Ticket_Selector;
-            },
-        ];
-    }
-
-
-    /**
-     * can be used for supplying alternate names for classes,
-     * or for connecting interface names to instantiable classes
-     *
-     * @throws InvalidAliasException
-     */
-    protected function _register_core_aliases()
-    {
-        $aliases = [
-            'CommandBusInterface'                                                          => 'EventEspresso\core\services\commands\CommandBusInterface',
-            'EventEspresso\core\services\commands\CommandBusInterface'                     => 'EventEspresso\core\services\commands\CommandBus',
-            'CommandHandlerManagerInterface'                                               => 'EventEspresso\core\services\commands\CommandHandlerManagerInterface',
-            'EventEspresso\core\services\commands\CommandHandlerManagerInterface'          => 'EventEspresso\core\services\commands\CommandHandlerManager',
-            'CapChecker'                                                                   => 'EventEspresso\core\services\commands\middleware\CapChecker',
-            'AddActionHook'                                                                => 'EventEspresso\core\services\commands\middleware\AddActionHook',
-            'CapabilitiesChecker'                                                          => 'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker',
-            'CapabilitiesCheckerInterface'                                                 => 'EventEspresso\core\domain\services\capabilities\CapabilitiesCheckerInterface',
-            'EventEspresso\core\domain\services\capabilities\CapabilitiesCheckerInterface' => 'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker',
-            'CreateRegistrationService'                                                    => 'EventEspresso\core\domain\services\registration\CreateRegistrationService',
-            'CreateRegistrationCommandHandler'                                             => 'EventEspresso\core\domain\services\commands\registration\CreateRegistrationCommand',
-            'CopyRegistrationDetailsCommandHandler'                                        => 'EventEspresso\core\domain\services\commands\registration\CopyRegistrationDetailsCommand',
-            'CopyRegistrationPaymentsCommandHandler'                                       => 'EventEspresso\core\domain\services\commands\registration\CopyRegistrationPaymentsCommand',
-            'CancelRegistrationAndTicketLineItemCommandHandler'                            => 'EventEspresso\core\domain\services\commands\registration\CancelRegistrationAndTicketLineItemCommandHandler',
-            'UpdateRegistrationAndTransactionAfterChangeCommandHandler'                    => 'EventEspresso\core\domain\services\commands\registration\UpdateRegistrationAndTransactionAfterChangeCommandHandler',
-            'CreateTicketLineItemCommandHandler'                                           => 'EventEspresso\core\domain\services\commands\ticket\CreateTicketLineItemCommand',
-            'CreateTransactionCommandHandler'                                              => 'EventEspresso\core\domain\services\commands\transaction\CreateTransactionCommandHandler',
-            'CreateAttendeeCommandHandler'                                                 => 'EventEspresso\core\domain\services\commands\attendee\CreateAttendeeCommandHandler',
-            'TableManager'                                                                 => 'EventEspresso\core\services\database\TableManager',
-            'TableAnalysis'                                                                => 'EventEspresso\core\services\database\TableAnalysis',
-            'EspressoShortcode'                                                            => 'EventEspresso\core\services\shortcodes\EspressoShortcode',
-            'ShortcodeInterface'                                                           => 'EventEspresso\core\services\shortcodes\ShortcodeInterface',
-            'EventEspresso\core\services\shortcodes\ShortcodeInterface'                    => 'EventEspresso\core\services\shortcodes\EspressoShortcode',
-            'EventEspresso\core\services\cache\CacheStorageInterface'                      => 'EventEspresso\core\services\cache\TransientCacheStorage',
-            'LoaderInterface'                                                              => 'EventEspresso\core\services\loaders\LoaderInterface',
-            'EventEspresso\core\services\loaders\LoaderInterface'                          => 'EventEspresso\core\services\loaders\Loader',
-            'CommandFactoryInterface'                                                      => 'EventEspresso\core\services\commands\CommandFactoryInterface',
-            'EventEspresso\core\services\commands\CommandFactoryInterface'                 => 'EventEspresso\core\services\commands\CommandFactory',
-            'EmailValidatorInterface'                                                      => 'EventEspresso\core\domain\services\validation\email\EmailValidatorInterface',
-            'EventEspresso\core\domain\services\validation\email\EmailValidatorInterface'  => 'EventEspresso\core\domain\services\validation\email\EmailValidationService',
-            'NoticeConverterInterface'                                                     => 'EventEspresso\core\services\notices\NoticeConverterInterface',
-            'EventEspresso\core\services\notices\NoticeConverterInterface'                 => 'EventEspresso\core\services\notices\ConvertNoticesToEeErrors',
-            'NoticesContainerInterface'                                                    => 'EventEspresso\core\services\notices\NoticesContainerInterface',
-            'EventEspresso\core\services\notices\NoticesContainerInterface'                => 'EventEspresso\core\services\notices\NoticesContainer',
-            'EventEspresso\core\services\request\RequestInterface'                         => 'EventEspresso\core\services\request\Request',
-            'EventEspresso\core\services\request\ResponseInterface'                        => 'EventEspresso\core\services\request\Response',
-            'EventEspresso\core\domain\DomainInterface'                                    => 'EventEspresso\core\domain\Domain',
-            'Registration_Processor'                                                       => 'EE_Registration_Processor',
-            'EventEspresso\core\services\assets\AssetManifestInterface'                    => 'EventEspresso\core\services\assets\AssetManifest',
-        ];
-        foreach ($aliases as $alias => $fqn) {
-            if (is_array($fqn)) {
-                foreach ($fqn as $class => $for_class) {
-                    $this->class_cache->addAlias($class, $alias, $for_class);
-                }
-                continue;
-            }
-            $this->class_cache->addAlias($fqn, $alias);
-        }
-        if (! (defined('DOING_AJAX') && DOING_AJAX) && is_admin()) {
-            $this->class_cache->addAlias(
-                'EventEspresso\core\services\notices\ConvertNoticesToAdminNotices',
-                'EventEspresso\core\services\notices\NoticeConverterInterface'
-            );
-        }
-    }
-
-
-    public function debug($for_class = '')
-    {
-        if (method_exists($this->class_cache, 'debug')) {
-            $this->class_cache->debug($for_class);
-        }
-    }
-
-
-    /**
-     * This is used to reset the internal map and class_loaders to their original default state at the beginning of the
-     * request Primarily used by unit tests.
-     */
-    public function reset()
-    {
-        $this->_register_core_class_loaders();
-        $this->_register_core_dependencies();
-    }
-
-
-    /**
-     * PLZ NOTE: a better name for this method would be is_alias()
-     * because it returns TRUE if the provided fully qualified name IS an alias
-     * WHY?
-     * Because if a class is type hinting for a concretion,
-     * then why would we need to find another class to supply it?
-     * ie: if a class asks for `Fully/Qualified/Namespace/SpecificClassName`,
-     * then give it an instance of `Fully/Qualified/Namespace/SpecificClassName`.
-     * Don't go looking for some substitute.
-     * Whereas if a class is type hinting for an interface...
-     * then we need to find an actual class to use.
-     * So the interface IS the alias for some other FQN,
-     * and we need to find out if `Fully/Qualified/Namespace/SomeInterface`
-     * represents some other class.
-     *
-     * @param string $fqn
-     * @param string $for_class
-     * @return bool
-     * @deprecated 4.9.62.p
-     */
-    public function has_alias(string $fqn = '', string $for_class = ''): bool
-    {
-        return $this->isAlias($fqn, $for_class);
-    }
-
-
-    /**
-     * PLZ NOTE: a better name for this method would be get_fqn_for_alias()
-     * because it returns a FQN for provided alias if one exists, otherwise returns the original $alias
-     * functions recursively, so that multiple aliases can be used to drill down to a FQN
-     *  for example:
-     *      if the following two entries were added to the _aliases array:
-     *          array(
-     *              'interface_alias'           => 'some\namespace\interface'
-     *              'some\namespace\interface'  => 'some\namespace\classname'
-     *          )
-     *      then one could use EE_Registry::instance()->create( 'interface_alias' )
-     *      to load an instance of 'some\namespace\classname'
-     *
-     * @param string $alias
-     * @param string $for_class
-     * @return string
-     * @deprecated 4.9.62.p
-     */
-    public function get_alias(string $alias = '', string $for_class = ''): string
-    {
-        return $this->getFqnForAlias($alias, $for_class);
-    }
+	/**
+	 * This means that the requested class dependency is not present in the dependency map
+	 */
+	const not_registered = 0;
+
+	/**
+	 * This instructs class loaders to ALWAYS return a newly instantiated object for the requested class.
+	 */
+	const load_new_object = 1;
+
+	/**
+	 * This instructs class loaders to return a previously instantiated and cached object for the requested class.
+	 * IF a previously instantiated object does not exist, a new one will be created and added to the cache.
+	 */
+	const load_from_cache = 2;
+
+	/**
+	 * When registering a dependency,
+	 * this indicates to keep any existing dependencies that already exist,
+	 * and simply discard any new dependencies declared in the incoming data
+	 */
+	const KEEP_EXISTING_DEPENDENCIES = 0;
+
+	/**
+	 * When registering a dependency,
+	 * this indicates to overwrite any existing dependencies that already exist using the incoming data
+	 */
+	const OVERWRITE_DEPENDENCIES = 1;
+
+	protected static ?EE_Dependency_Map $_instance = null;
+
+	private ClassInterfaceCache $class_cache;
+
+	protected ?RequestInterface $request = null;
+
+	protected ?LegacyRequestInterface $legacy_request = null;
+
+	protected ?ResponseInterface $response = null;
+
+	protected ?LoaderInterface $loader = null;
+
+	protected array $_dependency_map = [];
+
+	protected array $_class_loaders = [];
+
+
+	/**
+	 * EE_Dependency_Map constructor.
+	 *
+	 * @param ClassInterfaceCache $class_cache
+	 */
+	protected function __construct(ClassInterfaceCache $class_cache)
+	{
+		$this->class_cache = $class_cache;
+		do_action('EE_Dependency_Map____construct', $this);
+	}
+
+
+	/**
+	 * @return void
+	 * @throws InvalidAliasException
+	 */
+	public function initialize()
+	{
+		$this->_register_core_dependencies();
+		$this->_register_core_class_loaders();
+		$this->_register_core_aliases();
+	}
+
+
+	/**
+	 * @singleton method used to instantiate class object
+	 * @param ClassInterfaceCache|null $class_cache
+	 * @return EE_Dependency_Map
+	 */
+	public static function instance(ClassInterfaceCache $class_cache = null): EE_Dependency_Map
+	{
+		// check if class object is instantiated, and instantiated properly
+		if (
+			! EE_Dependency_Map::$_instance instanceof EE_Dependency_Map
+			&& $class_cache instanceof ClassInterfaceCache
+		) {
+			EE_Dependency_Map::$_instance = new EE_Dependency_Map($class_cache);
+		}
+		return EE_Dependency_Map::$_instance;
+	}
+
+
+	/**
+	 * @param RequestInterface $request
+	 */
+	public function setRequest(RequestInterface $request)
+	{
+		$this->request = $request;
+	}
+
+
+	/**
+	 * @param LegacyRequestInterface $legacy_request
+	 */
+	public function setLegacyRequest(LegacyRequestInterface $legacy_request)
+	{
+		$this->legacy_request = $legacy_request;
+	}
+
+
+	/**
+	 * @param ResponseInterface $response
+	 */
+	public function setResponse(ResponseInterface $response)
+	{
+		$this->response = $response;
+	}
+
+
+	/**
+	 * @param LoaderInterface $loader
+	 */
+	public function setLoader(LoaderInterface $loader)
+	{
+		$this->loader = $loader;
+	}
+
+
+	/**
+	 * @param string $class
+	 * @param array  $dependencies
+	 * @param int    $overwrite
+	 * @return bool
+	 */
+	public static function register_dependencies(
+		string $class,
+		array $dependencies,
+		int $overwrite = EE_Dependency_Map::KEEP_EXISTING_DEPENDENCIES
+	): bool {
+		return EE_Dependency_Map::$_instance->registerDependencies($class, $dependencies, $overwrite);
+	}
+
+
+	/**
+	 * Assigns an array of class names and corresponding load sources (new or cached)
+	 * to the class specified by the first parameter.
+	 * IMPORTANT !!!
+	 * The order of elements in the incoming $dependencies array MUST match
+	 * the order of the constructor parameters for the class in question.
+	 * This is especially important when overriding any existing dependencies that are registered.
+	 * the third parameter controls whether any duplicate dependencies are overwritten or not.
+	 *
+	 * @param string $class
+	 * @param array  $dependencies
+	 * @param int    $overwrite
+	 * @return bool
+	 */
+	public function registerDependencies(
+		string $class,
+		array $dependencies,
+		int $overwrite = EE_Dependency_Map::KEEP_EXISTING_DEPENDENCIES
+	): bool {
+		if (empty($dependencies)) {
+			return false;
+		}
+		$class      = trim($class, '\\');
+		$registered = false;
+		if (empty(EE_Dependency_Map::$_instance->_dependency_map[ $class ])) {
+			EE_Dependency_Map::$_instance->_dependency_map[ $class ] = [];
+		}
+		// we need to make sure that any aliases used when registering a dependency
+		// get resolved to the correct class name
+		foreach ($dependencies as $dependency => $load_source) {
+			$alias = EE_Dependency_Map::$_instance->getFqnForAlias($dependency);
+			if (
+				$overwrite === EE_Dependency_Map::OVERWRITE_DEPENDENCIES
+				|| ! isset(
+					EE_Dependency_Map::$_instance->_dependency_map[ $class ][ $dependency ],
+					EE_Dependency_Map::$_instance->_dependency_map[ $class ][ $alias ]
+				)
+			) {
+				unset($dependencies[ $dependency ]);
+				$dependencies[ $alias ] = $load_source;
+				$registered             = true;
+			}
+		}
+		// now add our two lists of dependencies together.
+		// using Union (+=) favours the arrays in precedence from left to right,
+		// so $dependencies is NOT overwritten because it is listed first
+		// ie: with A = B + C, entries in B take precedence over duplicate entries in C
+		// Union is way faster than array_merge() but should be used with caution...
+		// especially with numerically indexed arrays
+		$dependencies += EE_Dependency_Map::$_instance->_dependency_map[ $class ];
+		// now we need to ensure that the resulting dependencies
+		// array only has the entries that are required for the class
+		// so first count how many dependencies were originally registered for the class
+		$dependency_count = count(EE_Dependency_Map::$_instance->_dependency_map[ $class ]);
+		// if that count is non-zero (meaning dependencies were already registered)
+		EE_Dependency_Map::$_instance->_dependency_map[ $class ] = $dependency_count
+			// then truncate the  final array to match that count
+			? array_slice($dependencies, 0, $dependency_count)
+			// otherwise just take the incoming array because nothing previously existed
+			: $dependencies;
+		return $registered
+			|| count(EE_Dependency_Map::$_instance->_dependency_map[ $class ]) === count($dependencies);
+	}
+
+
+	/**
+	 * @param string          $class_name
+	 * @param callable|string $loader
+	 * @param bool            $overwrite
+	 * @return bool
+	 * @throws DomainException
+	 */
+	public static function register_class_loader(
+		string $class_name,
+		$loader = 'load_core',
+		bool $overwrite = false
+	): bool {
+		return EE_Dependency_Map::$_instance->registerClassLoader($class_name, $loader, $overwrite);
+	}
+
+
+	/**
+	 * @param string         $class_name
+	 * @param Closure|string $loader
+	 * @param bool           $overwrite
+	 * @return bool
+	 * @throws DomainException
+	 */
+	public function registerClassLoader(string $class_name, $loader = 'load_core', bool $overwrite = false): bool
+	{
+		if (! $loader instanceof Closure && strpos($class_name, '\\') !== false) {
+			throw new DomainException(
+				esc_html__('Don\'t use class loaders for FQCNs.', 'event_espresso')
+			);
+		}
+		// check that loader is callable or method starts with "load_" and exists in EE_Registry
+		if (
+			! is_callable($loader)
+			&& (
+				strpos($loader, 'load_') !== 0
+				|| ! method_exists('EE_Registry', $loader)
+			)
+		) {
+			throw new DomainException(
+				sprintf(
+					esc_html__(
+						'"%1$s" is not a valid loader method on EE_Registry.',
+						'event_espresso'
+					),
+					$loader
+				)
+			);
+		}
+		$class_name = EE_Dependency_Map::$_instance->getFqnForAlias($class_name);
+		if ($overwrite || ! isset(EE_Dependency_Map::$_instance->_class_loaders[ $class_name ])) {
+			EE_Dependency_Map::$_instance->_class_loaders[ $class_name ] = $loader;
+			return true;
+		}
+		return false;
+	}
+
+
+	/**
+	 * @return array
+	 */
+	public function dependency_map(): array
+	{
+		return $this->_dependency_map;
+	}
+
+
+	/**
+	 * returns TRUE if dependency map contains a listing for the provided class name
+	 *
+	 * @param string $class_name
+	 * @return boolean
+	 */
+	public function has(string $class_name = ''): bool
+	{
+		// all legacy models have the same dependencies
+		if (strpos($class_name, 'EEM_') === 0) {
+			$class_name = 'LEGACY_MODELS';
+		}
+		return isset($this->_dependency_map[ $class_name ]);
+	}
+
+
+	/**
+	 * returns TRUE if dependency map contains a listing for the provided class name AND dependency
+	 *
+	 * @param string $class_name
+	 * @param string $dependency
+	 * @return bool
+	 */
+	public function has_dependency_for_class(string $class_name = '', string $dependency = ''): bool
+	{
+		// all legacy models have the same dependencies
+		if (strpos($class_name, 'EEM_') === 0) {
+			$class_name = 'LEGACY_MODELS';
+		}
+		$dependency = $this->getFqnForAlias($dependency, $class_name);
+		return isset($this->_dependency_map[ $class_name ][ $dependency ]);
+	}
+
+
+	/**
+	 * returns loading strategy for whether a previously cached dependency should be loaded or a new instance returned
+	 *
+	 * @param string $class_name
+	 * @param string $dependency
+	 * @return int
+	 */
+	public function loading_strategy_for_class_dependency(string $class_name = '', string $dependency = ''): int
+	{
+		// all legacy models have the same dependencies
+		if (strpos($class_name, 'EEM_') === 0) {
+			$class_name = 'LEGACY_MODELS';
+		}
+		$dependency = $this->getFqnForAlias($dependency);
+		return $this->has_dependency_for_class($class_name, $dependency)
+			? $this->_dependency_map[ $class_name ][ $dependency ]
+			: EE_Dependency_Map::not_registered;
+	}
+
+
+	/**
+	 * @param string $class_name
+	 * @return string | Closure
+	 */
+	public function class_loader(string $class_name)
+	{
+		// all legacy models use load_model()
+		if (strpos($class_name, 'EEM_') === 0) {
+			return 'load_model';
+		}
+		// EE_CPT_*_Strategy classes like EE_CPT_Event_Strategy, EE_CPT_Venue_Strategy, etc
+		// perform strpos() first to avoid loading regex every time we load a class
+		if (
+			strpos($class_name, 'EE_CPT_') === 0
+			&& preg_match('/^EE_CPT_([a-zA-Z]+)_Strategy$/', $class_name)
+		) {
+			return 'load_core';
+		}
+		$class_name = $this->getFqnForAlias($class_name);
+		return $this->_class_loaders[ $class_name ] ?? '';
+	}
+
+
+	/**
+	 * @return array
+	 */
+	public function class_loaders(): array
+	{
+		return $this->_class_loaders;
+	}
+
+
+	/**
+	 * adds an alias for a classname
+	 *
+	 * @param string $fqcn      the class name that should be used (concrete class to replace interface)
+	 * @param string $alias     the class name that would be type hinted for (abstract parent or interface)
+	 * @param string $for_class the class that has the dependency (is type hinting for the interface)
+	 * @throws InvalidAliasException
+	 */
+	public function add_alias(string $fqcn, string $alias, string $for_class = '')
+	{
+		$this->class_cache->addAlias($fqcn, $alias, $for_class);
+	}
+
+
+	/**
+	 * Returns TRUE if the provided fully qualified name IS an alias
+	 * WHY?
+	 * Because if a class is type hinting for a concretion,
+	 * then why would we need to find another class to supply it?
+	 * ie: if a class asks for `Fully/Qualified/Namespace/SpecificClassName`,
+	 * then give it an instance of `Fully/Qualified/Namespace/SpecificClassName`.
+	 * Don't go looking for some substitute.
+	 * Whereas if a class is type hinting for an interface...
+	 * then we need to find an actual class to use.
+	 * So the interface IS the alias for some other FQN,
+	 * and we need to find out if `Fully/Qualified/Namespace/SomeInterface`
+	 * represents some other class.
+	 *
+	 * @param string $fqn
+	 * @param string $for_class
+	 * @return bool
+	 */
+	public function isAlias(string $fqn = '', string $for_class = ''): bool
+	{
+		return $this->class_cache->isAlias($fqn, $for_class);
+	}
+
+
+	/**
+	 * Returns a FQN for provided alias if one exists, otherwise returns the original $alias
+	 * functions recursively, so that multiple aliases can be used to drill down to a FQN
+	 *  for example:
+	 *      if the following two entries were added to the _aliases array:
+	 *          array(
+	 *              'interface_alias'           => 'some\namespace\interface'
+	 *              'some\namespace\interface'  => 'some\namespace\classname'
+	 *          )
+	 *      then one could use EE_Registry::instance()->create( 'interface_alias' )
+	 *      to load an instance of 'some\namespace\classname'
+	 *
+	 * @param string $alias
+	 * @param string $for_class
+	 * @return string
+	 */
+	public function getFqnForAlias(string $alias = '', string $for_class = ''): string
+	{
+		return $this->class_cache->getFqnForAlias($alias, $for_class);
+	}
+
+
+	/**
+	 * Registers the core dependencies and whether a previously instantiated object should be loaded from the cache,
+	 * if one exists, or whether a new object should be generated every time the requested class is loaded.
+	 * This is done by using the following class constants:
+	 *        EE_Dependency_Map::load_from_cache - loads previously instantiated object
+	 *        EE_Dependency_Map::load_new_object - generates a new object every time
+	 */
+	protected function _register_core_dependencies()
+	{
+		$this->_dependency_map = [
+			'EE_Admin'                                                                                                           => [
+				'EventEspresso\core\services\loaders\Loader'  => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_Maintenance_Mode'                                                                                                => [
+				'EventEspresso\core\services\loaders\Loader'  => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_Request_Handler'                                                                                                 => [
+				'EventEspresso\core\services\request\Request'  => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Response' => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_System'                                                                                                   => [
+				'EventEspresso\core\services\loaders\Loader'                   => EE_Dependency_Map::load_from_cache,
+				'EE_Maintenance_Mode'                                          => EE_Dependency_Map::load_from_cache,
+				'EE_Registry'                                                  => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Request'                  => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\routing\Router'                   => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\domain\services\capabilities\FeatureFlags' => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_Session'                                                                                                         => [
+				'EventEspresso\core\services\cache\TransientCacheStorage'  => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\domain\values\session\SessionLifespan' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Request'              => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\session\SessionStartHandler'  => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\encryption\Base64Encoder'     => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\session\SessionStartHandler'                                                            => [
+				'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_Cart'                                                                                                            => [
+				'EE_Session' => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_Messenger_Collection_Loader'                                                                                     => [
+				'EE_Messenger_Collection' => EE_Dependency_Map::load_new_object,
+			],
+			'EE_Message_Type_Collection_Loader'                                                                                  => [
+				'EE_Message_Type_Collection' => EE_Dependency_Map::load_new_object,
+			],
+			'EE_Message_Resource_Manager'                                                                                        => [
+				'EE_Messenger_Collection_Loader'    => EE_Dependency_Map::load_new_object,
+				'EE_Message_Type_Collection_Loader' => EE_Dependency_Map::load_new_object,
+				'EEM_Message_Template_Group'        => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_Message_Factory'                                                                                                 => [
+				'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_messages'                                                                                                        => [
+				'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_Messages_Generator'                                                                                              => [
+				'EE_Messages_Queue'                    => EE_Dependency_Map::load_new_object,
+				'EE_Messages_Data_Handler_Collection'  => EE_Dependency_Map::load_new_object,
+				'EE_Message_Template_Group_Collection' => EE_Dependency_Map::load_new_object,
+				'EEH_Parse_Shortcodes'                 => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_Messages_Processor'                                                                                              => [
+				'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_Messages_Queue'                                                                                                  => [
+				'EE_Message_Repository' => EE_Dependency_Map::load_new_object,
+			],
+			'EE_Messages_Template_Defaults'                                                                                      => [
+				'EEM_Message_Template_Group' => EE_Dependency_Map::load_from_cache,
+				'EEM_Message_Template'       => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_Message_To_Generate_From_Request'                                                                                => [
+				'EE_Message_Resource_Manager'                 => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\commands\CommandBus'                                                                    => [
+				'EventEspresso\core\services\commands\CommandHandlerManager' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\services\commands\CommandHandler'                                                                     => [
+				'EE_Registry'         => EE_Dependency_Map::load_from_cache,
+				'CommandBusInterface' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\commands\CommandHandlerManager'                                                         => [
+				'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\commands\CompositeCommandHandler'                                                       => [
+				'EventEspresso\core\services\commands\CommandBus'     => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\commands\CommandFactory' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\commands\CommandFactory'                                                                => [
+				'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\commands\middleware\CapChecker'                                                         => [
+				'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker'                                                => [
+				'EE_Capabilities' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\services\capabilities\RegistrationsCapChecker'                                            => [
+				'EE_Capabilities' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\services\commands\registration\CreateRegistrationCommandHandler'                          => [
+				'EventEspresso\core\domain\services\registration\CreateRegistrationService' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\services\commands\registration\CopyRegistrationDetailsCommandHandler'                     => [
+				'EventEspresso\core\domain\services\registration\CopyRegistrationService' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\services\commands\registration\CopyRegistrationPaymentsCommandHandler'                    => [
+				'EventEspresso\core\domain\services\registration\CopyRegistrationService' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\services\commands\registration\CancelRegistrationAndTicketLineItemCommandHandler'         => [
+				'EventEspresso\core\domain\services\registration\CancelTicketLineItemService' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\services\commands\registration\UpdateRegistrationAndTransactionAfterChangeCommandHandler' => [
+				'EventEspresso\core\domain\services\registration\UpdateRegistrationService' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\services\commands\ticket\CreateTicketLineItemCommandHandler'                              => [
+				'EventEspresso\core\domain\services\ticket\CreateTicketLineItemService' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\services\commands\ticket\CancelTicketLineItemCommandHandler'                              => [
+				'EventEspresso\core\domain\services\ticket\CancelTicketLineItemService' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\services\registration\CancelRegistrationService'                                          => [
+				'EventEspresso\core\domain\services\ticket\CancelTicketLineItemService' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\services\commands\attendee\CreateAttendeeCommandHandler'                                  => [
+				'EEM_Attendee' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\values\session\SessionLifespan'                                                           => [
+				'EventEspresso\core\domain\values\session\SessionLifespanOption' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\caffeinated\admin\extend\registration_form\forms\SessionLifespanForm'                                 => [
+				'EventEspresso\core\domain\values\session\SessionLifespanOption' => EE_Dependency_Map::load_from_cache,
+				'EE_Registration_Config'                                         => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\caffeinated\admin\extend\registration_form\forms\SessionLifespanFormHandler'                          => [
+				'EventEspresso\core\domain\values\session\SessionLifespanOption' => EE_Dependency_Map::load_from_cache,
+				'EE_Config'                                                      => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\database\TableManager'                                                                  => [
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_Data_Migration_Class_Base'                                                                                       => [
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_DMS_Core_4_1_0'                                                                                                  => [
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_DMS_Core_4_2_0'                                                                                                  => [
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_DMS_Core_4_3_0'                                                                                                  => [
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_DMS_Core_4_4_0'                                                                                                  => [
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_DMS_Core_4_5_0'                                                                                                  => [
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_DMS_Core_4_6_0'                                                                                                  => [
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_DMS_Core_4_7_0'                                                                                                  => [
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_DMS_Core_4_8_0'                                                                                                  => [
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_DMS_Core_4_9_0'                                                                                                  => [
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_DMS_Core_4_10_0'                                                                                                 => [
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+				'EE_DMS_Core_4_9_0'                                  => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_DMS_Core_5_0_0'                                                                                                  => [
+				'EE_DMS_Core_4_10_0'                                 => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\assets\I18nRegistry'                                                                    => [
+				'EventEspresso\core\domain\Domain' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\assets\Registry'                                                                        => [
+				'EventEspresso\core\services\assets\AssetCollection' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\assets\AssetManifest'   => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\entities\shortcodes\EspressoCancelled'                                                    => [
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\entities\shortcodes\EspressoCheckout'                                                     => [
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\entities\shortcodes\EspressoEventAttendees'                                               => [
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\entities\shortcodes\EspressoEvents'                                                       => [
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\entities\shortcodes\EspressoThankYou'                                                     => [
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\entities\shortcodes\EspressoTicketSelector'                                               => [
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\entities\shortcodes\EspressoTxnPage'                                                      => [
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\cache\BasicCacheManager'                                                                => [
+				'EventEspresso\core\services\cache\TransientCacheStorage' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\cache\PostRelatedCacheManager'                                                          => [
+				'EventEspresso\core\services\cache\TransientCacheStorage' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\services\validation\email\EmailValidationService'                                         => [
+				'EE_Registration_Config'                     => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\values\EmailAddress'                                                                      => [
+				null,
+				'EventEspresso\core\domain\services\validation\email\EmailValidationService' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\orm\ModelFieldFactory'                                                                  => [
+				'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
+			],
+			'LEGACY_MODELS'                                                                                                      => [
+				null,
+				'EventEspresso\core\services\database\ModelFieldFactory' => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_Module_Request_Router'                                                                                           => [
+				'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_Registration_Processor'                                                                                          => [
+				'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\notifications\PersistentAdminNoticeManager'                                             => [
+				'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Request'                         => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\caffeinated\modules\recaptcha_invisible\InvisibleRecaptcha'                                           => [
+				'EE_Registration_Config' => EE_Dependency_Map::load_from_cache,
+				'EE_Session'             => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\modules\ticket_selector\DisplayTicketSelector'                                                        => [
+				'EventEspresso\core\domain\entities\users\CurrentUser' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Request'          => EE_Dependency_Map::load_from_cache,
+				'EE_Ticket_Selector_Config'                            => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\modules\ticket_selector\ProcessTicketSelector'                                                        => [
+				'EE_Core_Config'                                                          => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Request'                             => EE_Dependency_Map::load_from_cache,
+				'EE_Session'                                                              => EE_Dependency_Map::load_from_cache,
+				'EEM_Ticket'                                                              => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\modules\ticket_selector\TicketDatetimeAvailabilityTracker' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\modules\ticket_selector\ProcessTicketSelectorPostData'                                                => [
+				'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
+				'EEM_Event'                                   => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\modules\ticket_selector\TicketDatetimeAvailabilityTracker'                                            => [
+				'EEM_Datetime' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions'                                     => [
+				'EE_Core_Config'                             => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\services\custom_post_types\RegisterCustomPostTypes'                                       => [
+				'EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\services\custom_post_types\RegisterCustomTaxonomies'                                      => [
+				'EventEspresso\core\domain\entities\custom_post_types\CustomTaxonomyDefinitions' => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_CPT_Strategy'                                                                                                    => [
+				'EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\domain\entities\custom_post_types\CustomTaxonomyDefinitions' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\loaders\ObjectIdentifier'                                                               => [
+				'EventEspresso\core\services\loaders\ClassInterfaceCache' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\CPTs\CptQueryModifier'                                                                           => [
+				null,
+				null,
+				null,
+				'EventEspresso\core\services\request\CurrentPage' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Request'     => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\loaders\Loader'      => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\dependencies\DependencyResolver'                                                        => [
+				'EventEspresso\core\services\container\Mirror'            => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\loaders\ClassInterfaceCache' => EE_Dependency_Map::load_from_cache,
+				'EE_Dependency_Map'                                       => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\routing\RouteMatchSpecificationDependencyResolver'                                      => [
+				'EventEspresso\core\services\container\Mirror'            => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\loaders\ClassInterfaceCache' => EE_Dependency_Map::load_from_cache,
+				'EE_Dependency_Map'                                       => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\routing\RouteMatchSpecificationFactory'                                                 => [
+				'EventEspresso\core\services\routing\RouteMatchSpecificationDependencyResolver' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\loaders\Loader'                                    => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\routing\RouteMatchSpecificationManager'                                                 => [
+				'EventEspresso\core\services\routing\RouteMatchSpecificationCollection' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\routing\RouteMatchSpecificationFactory'    => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\request\files\FilesDataHandler'                                                         => [
+				'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\libraries\batch\BatchRequestProcessor'                                                           => [
+				'EventEspresso\core\services\loaders\Loader'  => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\services\converters\RestApiSpoofer'                                                       => [
+				'WP_REST_Server'                                               => EE_Dependency_Map::load_from_cache,
+				'EED_Core_Rest_Api'                                            => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\libraries\rest_api\controllers\model\Read' => EE_Dependency_Map::load_from_cache,
+				null,
+			],
+			'EventEspresso\core\services\routing\RouteHandler'                                                                   => [
+				'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\json\JsonDataNodeHandler'                => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\loaders\Loader'                          => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Request'                         => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\routing\RouteCollection'                 => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\json\JsonDataNodeHandler'                                                               => [
+				'EventEspresso\core\services\json\JsonDataNodeValidator' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\routing\Router'                                                                         => [
+				'EE_Dependency_Map'                                => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\loaders\Loader'       => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\routing\RouteHandler' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\assets\AssetManifest'                                                                   => [
+				'EventEspresso\core\domain\Domain' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\assets\AssetManifestFactory'                                                            => [
+				'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\assets\BaristaFactory'                                                                  => [
+				'EventEspresso\core\services\assets\AssetManifestFactory' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\loaders\Loader'              => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\services\capabilities\FeatureFlagsConfig' => [
+				'EventEspresso\core\domain\Domain'                                    => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\json\JsonDataHandler'                    => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\services\capabilities\FeatureFlags'       => [
+				'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\domain\services\capabilities\FeatureFlagsConfig'  => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\addon\AddonManager'                                                                     => [
+				'EventEspresso\core\services\addon\AddonCollection'              => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\Psr4Autoloader'                              => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\addon\api\v1\RegisterAddon'         => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\addon\api\IncompatibleAddonHandler' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\addon\api\ThirdPartyPluginHandler'  => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\addon\api\ThirdPartyPluginHandler'                                                      => [
+				'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\libraries\batch\JobHandlers\ExecuteBatchDeletion'                                                => [
+				'EventEspresso\core\services\orm\tree_traversal\NodeGroupDao' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\libraries\batch\JobHandlers\PreviewEventDeletion'                                                => [
+				'EventEspresso\core\services\orm\tree_traversal\NodeGroupDao' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\services\admin\events\data\PreviewDeletion'                                               => [
+				'EventEspresso\core\services\orm\tree_traversal\NodeGroupDao' => EE_Dependency_Map::load_from_cache,
+				'EEM_Event'                                                   => EE_Dependency_Map::load_from_cache,
+				'EEM_Datetime'                                                => EE_Dependency_Map::load_from_cache,
+				'EEM_Registration'                                            => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\services\admin\events\data\ConfirmDeletion'                                               => [
+				'EventEspresso\core\services\orm\tree_traversal\NodeGroupDao' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\request\CurrentPage'                                                                    => [
+				'EE_CPT_Strategy'                             => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\shortcodes\LegacyShortcodesManager'                                                     => [
+				'EE_Registry'                                     => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\CurrentPage' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\shortcodes\ShortcodesManager'                                                           => [
+				'EventEspresso\core\services\shortcodes\LegacyShortcodesManager' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\CurrentPage'                => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\entities\users\CurrentUser'                                                               => [
+				'EventEspresso\core\domain\entities\users\EventManagers' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\form\meta\InputTypes'                                                                   => [
+				'EventEspresso\core\services\form\meta\inputs\Block'    => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\form\meta\inputs\Button'   => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\form\meta\inputs\DateTime' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\form\meta\inputs\Input'    => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\form\meta\inputs\Number'   => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\form\meta\inputs\Phone'    => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\form\meta\inputs\Select'   => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\form\meta\inputs\Text'     => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\services\registration\form\v1\RegFormDependencyHandler'                                   => [
+				'EE_Dependency_Map' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\calculators\LineItemCalculator'                                                         => [
+				'EventEspresso\core\services\helpers\DecimalValues' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\helpers\DecimalValues'                                                                  => [
+				'EE_Currency_Config' => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_Brewing_Regular'                                                                                                 => [
+				'EE_Dependency_Map'                                  => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\loaders\Loader'         => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\routing\RouteHandler'   => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\services\messages\MessageTemplateRequestData'                                             => [
+				'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\services\messages\MessageTemplateValidator'                                               => [
+				'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\services\messages\MessageTemplateManager'                                                 => [
+				'EEM_Message_Template'                                                   => EE_Dependency_Map::load_from_cache,
+				'EEM_Message_Template_Group'                                             => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\domain\services\messages\MessageTemplateRequestData' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\domain\services\messages\MessageTemplateValidator'   => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Request'                            => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\services\request\sanitizers\RequestSanitizer'                                                    => [
+				'EventEspresso\core\domain\services\validation\email\strategies\Basic' => EE_Dependency_Map::load_from_cache,
+			],
+			'EE_CPT_Event_Strategy'                                                    => [
+				null,
+				null,
+				'EE_Template_Config' => EE_Dependency_Map::load_from_cache,
+			],
+			'EventEspresso\core\domain\services\licensing\LicenseKeyFormInput'                                                    => [
+				'EventEspresso\core\services\licensing\PluginLicense'  => EE_Dependency_Map::not_registered,
+				'EventEspresso\core\services\licensing\LicenseManager' => EE_Dependency_Map::load_from_cache,
+			],
+		];
+	}
+
+
+	/**
+	 * Registers how core classes are loaded.
+	 * This can either be done by simply providing the name of one of the EE_Registry loader methods such as:
+	 *        'EE_Request_Handler' => 'load_core'
+	 *        'EE_Messages_Queue'  => 'load_lib'
+	 *        'EEH_Debug_Tools'    => 'load_helper'
+	 * or, if greater control is required, by providing a custom closure. For example:
+	 *        'Some_Class' => function () {
+	 *            return new Some_Class();
+	 *        },
+	 * This is required for instantiating dependencies
+	 * where an interface has been type hinted in a class constructor. For example:
+	 *        'Required_Interface' => function () {
+	 *            return new A_Class_That_Implements_Required_Interface();
+	 *        },
+	 */
+	protected function _register_core_class_loaders()
+	{
+		$this->_class_loaders = [
+			// load_core
+			'EE_Dependency_Map'                            => function () {
+				return $this;
+			},
+			'EE_Capabilities'                              => 'load_core',
+			'EE_Encryption'                                => 'load_core',
+			'EE_Front_Controller'                          => 'load_core',
+			'EE_Module_Request_Router'                     => 'load_core',
+			'EE_Registry'                                  => 'load_core',
+			'EE_Request'                                   => function () {
+				return $this->legacy_request;
+			},
+			'EventEspresso\core\services\request\Request'  => function () {
+				return $this->request;
+			},
+			'EventEspresso\core\services\request\Response' => function () {
+				return $this->response;
+			},
+			'EE_Base'                                      => 'load_core',
+			'EE_Request_Handler'                           => 'load_core',
+			'EE_Session'                                   => 'load_core',
+			'EE_Cron_Tasks'                                => 'load_core',
+			'EE_System'                                    => 'load_core',
+			'EE_Maintenance_Mode'                          => 'load_core',
+			'EE_Register_CPTs'                             => 'load_core',
+			'EE_Admin'                                     => 'load_core',
+			'EE_CPT_Strategy'                              => 'load_core',
+			// load_class
+			'EE_Registration_Processor'                    => 'load_class',
+			'EE_Transaction_Payments'                      => 'load_class',
+			'EE_Transaction_Processor'                     => 'load_class',
+			// load_lib
+			'EE_Message_Resource_Manager'                  => 'load_lib',
+			'EE_Message_Type_Collection'                   => 'load_lib',
+			'EE_Message_Type_Collection_Loader'            => 'load_lib',
+			'EE_Messenger_Collection'                      => 'load_lib',
+			'EE_Messenger_Collection_Loader'               => 'load_lib',
+			'EE_Messages_Processor'                        => 'load_lib',
+			'EE_Message_Repository'                        => 'load_lib',
+			'EE_Messages_Queue'                            => 'load_lib',
+			'EE_Messages_Data_Handler_Collection'          => 'load_lib',
+			'EE_Message_Template_Group_Collection'         => 'load_lib',
+			'EE_Payment_Method_Manager'                    => 'load_lib',
+			'EE_Payment_Processor'                         => 'load_core',
+			'EE_DMS_Core_4_1_0'                            => 'load_dms',
+			'EE_DMS_Core_4_2_0'                            => 'load_dms',
+			'EE_DMS_Core_4_3_0'                            => 'load_dms',
+			'EE_DMS_Core_4_5_0'                            => 'load_dms',
+			'EE_DMS_Core_4_6_0'                            => 'load_dms',
+			'EE_DMS_Core_4_7_0'                            => 'load_dms',
+			'EE_DMS_Core_4_8_0'                            => 'load_dms',
+			'EE_DMS_Core_4_9_0'                            => 'load_dms',
+			'EE_DMS_Core_4_10_0'                           => 'load_dms',
+			'EE_DMS_Core_5_0_0'                            => 'load_dms',
+			'EE_Messages_Generator'                        => static function () {
+				return EE_Registry::instance()->load_lib(
+					'Messages_Generator',
+					[],
+					false,
+					false
+				);
+			},
+			'EE_Messages_Template_Defaults'                => static function ($arguments = []) {
+				return EE_Registry::instance()->load_lib(
+					'Messages_Template_Defaults',
+					$arguments,
+					false,
+					false
+				);
+			},
+			// load_helper
+			'EEH_Parse_Shortcodes'                         => static function () {
+				if (EE_Registry::instance()->load_helper('Parse_Shortcodes')) {
+					return new EEH_Parse_Shortcodes();
+				}
+				return null;
+			},
+			'EE_Template_Config'                           => static function () {
+				return EE_Config::instance()->template_settings;
+			},
+			'EE_Currency_Config'                           => static function () {
+				return EE_Currency_Config::getCurrencyConfig();
+			},
+			'EE_Registration_Config'                       => static function () {
+				return EE_Config::instance()->registration;
+			},
+			'EE_Core_Config'                               => static function () {
+				return EE_Config::instance()->core;
+			},
+			'EventEspresso\core\services\loaders\Loader'   => static function () {
+				return LoaderFactory::getLoader();
+			},
+			'EE_Network_Config'                            => static function () {
+				return EE_Network_Config::instance();
+			},
+			'EE_Config'                                    => static function () {
+				return EE_Config::instance();
+			},
+			'EventEspresso\core\domain\Domain'             => static function () {
+				return DomainFactory::getEventEspressoCoreDomain();
+			},
+			'EE_Admin_Config'                              => static function () {
+				return EE_Config::instance()->admin;
+			},
+			'EE_Organization_Config'                       => static function () {
+				return EE_Config::instance()->organization;
+			},
+			'EE_Network_Core_Config'                       => static function () {
+				return EE_Network_Config::instance()->core;
+			},
+			'EE_Environment_Config'                        => static function () {
+				return EE_Config::instance()->environment;
+			},
+			'EED_Core_Rest_Api'                            => static function () {
+				return EED_Core_Rest_Api::instance();
+			},
+			'WP_REST_Server'                               => static function () {
+				return rest_get_server();
+			},
+			'EventEspresso\core\Psr4Autoloader'            => static function () {
+				return EE_Psr4AutoloaderInit::psr4_loader();
+			},
+			'EE_Ticket_Selector_Config'                    => function () {
+				return EE_Config::instance()->template_settings->EED_Ticket_Selector;
+			},
+		];
+	}
+
+
+	/**
+	 * can be used for supplying alternate names for classes,
+	 * or for connecting interface names to instantiable classes
+	 *
+	 * @throws InvalidAliasException
+	 */
+	protected function _register_core_aliases()
+	{
+		$aliases = [
+			'CommandBusInterface'                                                          => 'EventEspresso\core\services\commands\CommandBusInterface',
+			'EventEspresso\core\services\commands\CommandBusInterface'                     => 'EventEspresso\core\services\commands\CommandBus',
+			'CommandHandlerManagerInterface'                                               => 'EventEspresso\core\services\commands\CommandHandlerManagerInterface',
+			'EventEspresso\core\services\commands\CommandHandlerManagerInterface'          => 'EventEspresso\core\services\commands\CommandHandlerManager',
+			'CapChecker'                                                                   => 'EventEspresso\core\services\commands\middleware\CapChecker',
+			'AddActionHook'                                                                => 'EventEspresso\core\services\commands\middleware\AddActionHook',
+			'CapabilitiesChecker'                                                          => 'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker',
+			'CapabilitiesCheckerInterface'                                                 => 'EventEspresso\core\domain\services\capabilities\CapabilitiesCheckerInterface',
+			'EventEspresso\core\domain\services\capabilities\CapabilitiesCheckerInterface' => 'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker',
+			'CreateRegistrationService'                                                    => 'EventEspresso\core\domain\services\registration\CreateRegistrationService',
+			'CreateRegistrationCommandHandler'                                             => 'EventEspresso\core\domain\services\commands\registration\CreateRegistrationCommand',
+			'CopyRegistrationDetailsCommandHandler'                                        => 'EventEspresso\core\domain\services\commands\registration\CopyRegistrationDetailsCommand',
+			'CopyRegistrationPaymentsCommandHandler'                                       => 'EventEspresso\core\domain\services\commands\registration\CopyRegistrationPaymentsCommand',
+			'CancelRegistrationAndTicketLineItemCommandHandler'                            => 'EventEspresso\core\domain\services\commands\registration\CancelRegistrationAndTicketLineItemCommandHandler',
+			'UpdateRegistrationAndTransactionAfterChangeCommandHandler'                    => 'EventEspresso\core\domain\services\commands\registration\UpdateRegistrationAndTransactionAfterChangeCommandHandler',
+			'CreateTicketLineItemCommandHandler'                                           => 'EventEspresso\core\domain\services\commands\ticket\CreateTicketLineItemCommand',
+			'CreateTransactionCommandHandler'                                              => 'EventEspresso\core\domain\services\commands\transaction\CreateTransactionCommandHandler',
+			'CreateAttendeeCommandHandler'                                                 => 'EventEspresso\core\domain\services\commands\attendee\CreateAttendeeCommandHandler',
+			'TableManager'                                                                 => 'EventEspresso\core\services\database\TableManager',
+			'TableAnalysis'                                                                => 'EventEspresso\core\services\database\TableAnalysis',
+			'EspressoShortcode'                                                            => 'EventEspresso\core\services\shortcodes\EspressoShortcode',
+			'ShortcodeInterface'                                                           => 'EventEspresso\core\services\shortcodes\ShortcodeInterface',
+			'EventEspresso\core\services\shortcodes\ShortcodeInterface'                    => 'EventEspresso\core\services\shortcodes\EspressoShortcode',
+			'EventEspresso\core\services\cache\CacheStorageInterface'                      => 'EventEspresso\core\services\cache\TransientCacheStorage',
+			'LoaderInterface'                                                              => 'EventEspresso\core\services\loaders\LoaderInterface',
+			'EventEspresso\core\services\loaders\LoaderInterface'                          => 'EventEspresso\core\services\loaders\Loader',
+			'CommandFactoryInterface'                                                      => 'EventEspresso\core\services\commands\CommandFactoryInterface',
+			'EventEspresso\core\services\commands\CommandFactoryInterface'                 => 'EventEspresso\core\services\commands\CommandFactory',
+			'EmailValidatorInterface'                                                      => 'EventEspresso\core\domain\services\validation\email\EmailValidatorInterface',
+			'EventEspresso\core\domain\services\validation\email\EmailValidatorInterface'  => 'EventEspresso\core\domain\services\validation\email\EmailValidationService',
+			'NoticeConverterInterface'                                                     => 'EventEspresso\core\services\notices\NoticeConverterInterface',
+			'EventEspresso\core\services\notices\NoticeConverterInterface'                 => 'EventEspresso\core\services\notices\ConvertNoticesToEeErrors',
+			'NoticesContainerInterface'                                                    => 'EventEspresso\core\services\notices\NoticesContainerInterface',
+			'EventEspresso\core\services\notices\NoticesContainerInterface'                => 'EventEspresso\core\services\notices\NoticesContainer',
+			'EventEspresso\core\services\request\RequestInterface'                         => 'EventEspresso\core\services\request\Request',
+			'EventEspresso\core\services\request\ResponseInterface'                        => 'EventEspresso\core\services\request\Response',
+			'EventEspresso\core\domain\DomainInterface'                                    => 'EventEspresso\core\domain\Domain',
+			'Registration_Processor'                                                       => 'EE_Registration_Processor',
+			'EventEspresso\core\services\assets\AssetManifestInterface'                    => 'EventEspresso\core\services\assets\AssetManifest',
+		];
+		foreach ($aliases as $alias => $fqn) {
+			if (is_array($fqn)) {
+				foreach ($fqn as $class => $for_class) {
+					$this->class_cache->addAlias($class, $alias, $for_class);
+				}
+				continue;
+			}
+			$this->class_cache->addAlias($fqn, $alias);
+		}
+		if (! (defined('DOING_AJAX') && DOING_AJAX) && is_admin()) {
+			$this->class_cache->addAlias(
+				'EventEspresso\core\services\notices\ConvertNoticesToAdminNotices',
+				'EventEspresso\core\services\notices\NoticeConverterInterface'
+			);
+		}
+	}
+
+
+	public function debug($for_class = '')
+	{
+		if (method_exists($this->class_cache, 'debug')) {
+			$this->class_cache->debug($for_class);
+		}
+	}
+
+
+	/**
+	 * This is used to reset the internal map and class_loaders to their original default state at the beginning of the
+	 * request Primarily used by unit tests.
+	 */
+	public function reset()
+	{
+		$this->_register_core_class_loaders();
+		$this->_register_core_dependencies();
+	}
+
+
+	/**
+	 * PLZ NOTE: a better name for this method would be is_alias()
+	 * because it returns TRUE if the provided fully qualified name IS an alias
+	 * WHY?
+	 * Because if a class is type hinting for a concretion,
+	 * then why would we need to find another class to supply it?
+	 * ie: if a class asks for `Fully/Qualified/Namespace/SpecificClassName`,
+	 * then give it an instance of `Fully/Qualified/Namespace/SpecificClassName`.
+	 * Don't go looking for some substitute.
+	 * Whereas if a class is type hinting for an interface...
+	 * then we need to find an actual class to use.
+	 * So the interface IS the alias for some other FQN,
+	 * and we need to find out if `Fully/Qualified/Namespace/SomeInterface`
+	 * represents some other class.
+	 *
+	 * @param string $fqn
+	 * @param string $for_class
+	 * @return bool
+	 * @deprecated 4.9.62.p
+	 */
+	public function has_alias(string $fqn = '', string $for_class = ''): bool
+	{
+		return $this->isAlias($fqn, $for_class);
+	}
+
+
+	/**
+	 * PLZ NOTE: a better name for this method would be get_fqn_for_alias()
+	 * because it returns a FQN for provided alias if one exists, otherwise returns the original $alias
+	 * functions recursively, so that multiple aliases can be used to drill down to a FQN
+	 *  for example:
+	 *      if the following two entries were added to the _aliases array:
+	 *          array(
+	 *              'interface_alias'           => 'some\namespace\interface'
+	 *              'some\namespace\interface'  => 'some\namespace\classname'
+	 *          )
+	 *      then one could use EE_Registry::instance()->create( 'interface_alias' )
+	 *      to load an instance of 'some\namespace\classname'
+	 *
+	 * @param string $alias
+	 * @param string $for_class
+	 * @return string
+	 * @deprecated 4.9.62.p
+	 */
+	public function get_alias(string $alias = '', string $for_class = ''): string
+	{
+		return $this->getFqnForAlias($alias, $for_class);
+	}
 }

core/helpers/EEH_Line_Item.helper.php

Indentation +2214 added lines, -2214 removed lines

@@ -21,2218 +21,2218 @@
  */
 class EEH_Line_Item
 {
-    /**
-     * @var EE_Line_Item[]|null
-     */
-    private static ?array $global_taxes = null;
-
-
-    /**
-     * Adds a simple item (unrelated to any other model object) to the provided PARENT line item.
-     * Does NOT automatically re-calculate the line item totals or update the related transaction.
-     * You should call recalculate_total_including_taxes() on the grant total line item after this
-     * to update the subtotals, and EE_Registration_Processor::calculate_reg_final_prices_per_line_item()
-     * to keep the registration final prices in-sync with the transaction's total.
-     *
-     * @param EE_Line_Item $parent_line_item
-     * @param string       $name
-     * @param float        $unit_price
-     * @param string       $description
-     * @param int          $quantity
-     * @param boolean      $taxable
-     * @param string|null  $code if set to a value, ensures there is only one line item with that code
-     * @param bool         $return_item
-     * @param bool         $recalculate_totals
-     * @return boolean|EE_Line_Item success
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function add_unrelated_item(
-        EE_Line_Item $parent_line_item,
-        string $name,
-        float $unit_price,
-        string $description = '',
-        int $quantity = 1,
-        bool $taxable = false,
-        ?string $code = null,
-        bool $return_item = false,
-        bool $recalculate_totals = true
-    ) {
-        $items_subtotal = self::get_pre_tax_subtotal($parent_line_item);
-        $line_item      = EE_Line_Item::new_instance(
-            [
-                'LIN_name'       => $name,
-                'LIN_desc'       => $description,
-                'LIN_unit_price' => $unit_price,
-                'LIN_quantity'   => $quantity,
-                'LIN_percent'    => null,
-                'LIN_is_taxable' => $taxable,
-                'LIN_order'      => count($items_subtotal->children()),
-                'LIN_total'      => $unit_price * $quantity,
-                'LIN_type'       => EEM_Line_Item::type_line_item,
-                'LIN_code'       => $code,
-            ]
-        );
-        $line_item      = apply_filters(
-            'FHEE__EEH_Line_Item__add_unrelated_item__line_item',
-            $line_item,
-            $parent_line_item
-        );
-        $added          = self::add_item($parent_line_item, $line_item, $recalculate_totals);
-        return $return_item ? $line_item : $added;
-    }
-
-
-    /**
-     * Adds a simple item ( unrelated to any other model object) to the total line item,
-     * in the correct spot in the line item tree. Does not automatically
-     * re-calculate the line item totals, nor update the related transaction, nor upgrade the transaction's
-     * registrations' final prices (which should probably change because of this).
-     * You should call recalculate_total_including_taxes() on the grand total line item, then
-     * update the transaction's total, and EE_Registration_Processor::update_registration_final_prices()
-     * after using this, to keep the registration final prices in-sync with the transaction's total.
-     *
-     * @param EE_Line_Item $parent_line_item
-     * @param string       $name
-     * @param float        $percentage_amount
-     * @param string       $description
-     * @param boolean      $taxable
-     * @param string|null  $code
-     * @param bool         $return_item
-     * @return boolean|EE_Line_Item success
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function add_percentage_based_item(
-        EE_Line_Item $parent_line_item,
-        string $name,
-        float $percentage_amount,
-        string $description = '',
-        bool $taxable = false,
-        ?string $code = null,
-        bool $return_item = false
-    ) {
-        $total     = $percentage_amount * $parent_line_item->total() / 100;
-        $line_item = EE_Line_Item::new_instance(
-            [
-                'LIN_name'       => $name,
-                'LIN_desc'       => $description,
-                'LIN_unit_price' => 0,
-                'LIN_percent'    => $percentage_amount,
-                'LIN_quantity'   => 1,
-                'LIN_is_taxable' => $taxable,
-                'LIN_total'      => $total,
-                'LIN_type'       => EEM_Line_Item::type_line_item,
-                'LIN_parent'     => $parent_line_item->ID(),
-                'LIN_code'       => $code,
-            ]
-        );
-        $line_item = apply_filters(
-            'FHEE__EEH_Line_Item__add_percentage_based_item__line_item',
-            $line_item
-        );
-        $added     = $parent_line_item->add_child_line_item($line_item, false);
-        return $return_item ? $line_item : $added;
-    }
-
-
-    /**
-     * Returns the new line item created by adding a purchase of the ticket
-     * ensures that ticket line item is saved, and that cart total has been recalculated.
-     * If this ticket has already been purchased, just increments its count.
-     * Automatically re-calculates the line item totals and updates the related transaction. But
-     * DOES NOT automatically upgrade the transaction's registrations' final prices (which
-     * should probably change because of this).
-     * You should call EE_Registration_Processor::calculate_reg_final_prices_per_line_item()
-     * after using this, to keep the registration final prices in-sync with the transaction's total.
-     *
-     * @param EE_Line_Item|null $total_line_item grand total line item of type EEM_Line_Item::type_total
-     * @param EE_Ticket         $ticket
-     * @param int               $qty
-     * @param bool              $recalculate_totals
-     * @return EE_Line_Item
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function add_ticket_purchase(
-        ?EE_Line_Item $total_line_item,
-        EE_Ticket $ticket,
-        int $qty = 1,
-        bool $recalculate_totals = true
-    ): ?EE_Line_Item {
-        if (! $total_line_item instanceof EE_Line_Item || ! $total_line_item->is_total()) {
-            throw new EE_Error(
-                sprintf(
-                    esc_html__(
-                        'A valid line item total is required in order to add tickets. A line item of type "%s" was passed.',
-                        'event_espresso'
-                    ),
-                    $ticket->ID(),
-                    $total_line_item->ID()
-                )
-            );
-        }
-        // either increment the qty for an existing ticket
-        $line_item = self::increment_ticket_qty_if_already_in_cart($total_line_item, $ticket, $qty);
-        // or add a new one
-        if (! $line_item instanceof EE_Line_Item) {
-            $line_item = self::create_ticket_line_item($total_line_item, $ticket, $qty);
-        }
-        if ($recalculate_totals) {
-            $total_line_item->recalculate_total_including_taxes();
-        }
-        return $line_item;
-    }
-
-
-    /**
-     * Returns the new line item created by adding a purchase of the ticket
-     *
-     * @param EE_Line_Item|null $total_line_item
-     * @param EE_Ticket         $ticket
-     * @param int               $qty
-     * @return EE_Line_Item
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public static function increment_ticket_qty_if_already_in_cart(
-        ?EE_Line_Item $total_line_item,
-        EE_Ticket $ticket,
-        int $qty = 1
-    ): ?EE_Line_Item {
-        $line_item = null;
-        if ($total_line_item instanceof EE_Line_Item && $total_line_item->is_total()) {
-            $ticket_line_items = EEH_Line_Item::get_ticket_line_items($total_line_item);
-            foreach ($ticket_line_items as $ticket_line_item) {
-                if (
-                    $ticket_line_item instanceof EE_Line_Item
-                    && $ticket_line_item->OBJ_ID() === $ticket->ID()
-                ) {
-                    $line_item = $ticket_line_item;
-                    break;
-                }
-            }
-        }
-        if ($line_item instanceof EE_Line_Item) {
-            EEH_Line_Item::increment_quantity($line_item, $qty);
-            return $line_item;
-        }
-        return null;
-    }
-
-
-    /**
-     * Increments the line item and all its children's quantity by $qty (but percent line items are unaffected).
-     * Does NOT save or recalculate other line items totals
-     *
-     * @param EE_Line_Item $line_item
-     * @param int          $qty
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public static function increment_quantity(EE_Line_Item $line_item, int $qty = 1)
-    {
-        if (! $line_item->is_percent()) {
-            $qty += $line_item->quantity();
-            $line_item->set_quantity($qty);
-            $line_item->set_total($line_item->unit_price() * $qty);
-            $line_item->save();
-        }
-        foreach ($line_item->children() as $child) {
-            if ($child->is_sub_line_item()) {
-                EEH_Line_Item::update_quantity($child, $qty);
-            }
-        }
-    }
-
-
-    /**
-     * Decrements the line item and all its children's quantity by $qty (but percent line items are unaffected).
-     * Does NOT save or recalculate other line items totals
-     *
-     * @param EE_Line_Item $line_item
-     * @param int          $qty
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public static function decrement_quantity(EE_Line_Item $line_item, int $qty = 1)
-    {
-        if (! $line_item->is_percent()) {
-            $qty = $line_item->quantity() - $qty;
-            $qty = max($qty, 0);
-            $line_item->set_quantity($qty);
-            $line_item->set_total($line_item->unit_price() * $qty);
-            $line_item->save();
-        }
-        foreach ($line_item->children() as $child) {
-            if ($child->is_sub_line_item()) {
-                EEH_Line_Item::update_quantity($child, $qty);
-            }
-        }
-    }
-
-
-    /**
-     * Updates the line item and its children's quantities to the specified number.
-     * Does NOT save them or recalculate totals.
-     *
-     * @param EE_Line_Item $line_item
-     * @param int          $new_quantity
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public static function update_quantity(EE_Line_Item $line_item, int $new_quantity)
-    {
-        if (! $line_item->is_percent()) {
-            $line_item->set_quantity($new_quantity);
-            $line_item->set_total($line_item->unit_price() * $new_quantity);
-            $line_item->save();
-        }
-        foreach ($line_item->children() as $child) {
-            if ($child->is_sub_line_item()) {
-                EEH_Line_Item::update_quantity($child, $new_quantity);
-            }
-        }
-    }
-
-
-    /**
-     * Returns the new line item created by adding a purchase of the ticket
-     *
-     * @param EE_Line_Item $total_line_item of type EEM_Line_Item::type_total
-     * @param EE_Ticket    $ticket
-     * @param int          $qty
-     * @return EE_Line_Item
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public static function create_ticket_line_item(
-        EE_Line_Item $total_line_item,
-        EE_Ticket $ticket,
-        int $qty = 1
-    ): EE_Line_Item {
-        $datetimes           = $ticket->datetimes();
-        $first_datetime      = reset($datetimes);
-        $first_datetime_name = esc_html__('Event', 'event_espresso');
-        if ($first_datetime instanceof EE_Datetime && $first_datetime->event() instanceof EE_Event) {
-            $first_datetime_name = $first_datetime->event()->name();
-        }
-        $event = sprintf(_x('(For %1$s)', '(For Event Name)', 'event_espresso'), $first_datetime_name);
-        // get event subtotal line
-        $events_sub_total = self::get_event_line_item_for_ticket($total_line_item, $ticket);
-        $taxes            = $ticket->tax_price_modifiers();
-        // add $ticket to cart
-        $line_item = EE_Line_Item::new_instance(
-            [
-                'LIN_name'       => $ticket->name(),
-                'LIN_desc'       => $ticket->description() !== '' ? $ticket->description() . ' ' . $event : $event,
-                'LIN_unit_price' => $ticket->price(),
-                'LIN_quantity'   => $qty,
-                'LIN_is_taxable' => empty($taxes) && $ticket->taxable(),
-                'LIN_order'      => count($events_sub_total->children()),
-                'LIN_total'      => $ticket->price() * $qty,
-                'LIN_type'       => EEM_Line_Item::type_line_item,
-                'OBJ_ID'         => $ticket->ID(),
-                'OBJ_type'       => EEM_Line_Item::OBJ_TYPE_TICKET,
-            ]
-        );
-        $line_item = apply_filters(
-            'FHEE__EEH_Line_Item__create_ticket_line_item__line_item',
-            $line_item
-        );
-        if (! $line_item instanceof EE_Line_Item) {
-            throw new DomainException(
-                esc_html__('Invalid EE_Line_Item received.', 'event_espresso')
-            );
-        }
-        $events_sub_total->add_child_line_item($line_item);
-        // now add the sub-line items
-        $running_pre_tax_total = 0;
-        $prices                = $ticket->prices();
-        if (empty($prices)) {
-            // WUT?!?! NO PRICES??? Well, just create a default price then.
-            $default_price = EEM_Price::instance()->get_new_price();
-            if ($default_price->amount() !== $ticket->price()) {
-                $default_price->set_amount($ticket->price());
-            }
-            $default_price->save();
-            $ticket->_add_relation_to($default_price, 'Price');
-            $ticket->save();
-            $prices = [$default_price];
-        }
-        foreach ($prices as $price) {
-            $sign        = $price->is_discount() ? -1 : 1;
-            $price_total = $price->is_percent()
-                ? $running_pre_tax_total * $price->amount() / 100
-                : $price->amount() * $qty;
-            if ($price->is_percent()) {
-                $percent    = $sign * $price->amount();
-                $unit_price = 0;
-            } else {
-                $percent    = 0;
-                $unit_price = $sign * $price->amount();
-            }
-
-            $price_desc = $price->desc();
-            $price_type = $price->type_obj();
-            $price_desc = $price_desc === '' && $price_type instanceof EE_Price_Type
-                ? $price_type->name()
-                : $price_desc;
-
-            $sub_line_item         = EE_Line_Item::new_instance(
-                [
-                    'LIN_name'       => $price->name(),
-                    'LIN_desc'       => $price_desc,
-                    'LIN_quantity'   => $price->is_percent() ? null : $qty,
-                    'LIN_is_taxable' => false,
-                    'LIN_order'      => $price->order(),
-                    'LIN_total'      => $price_total,
-                    'LIN_pretax'     => 0,
-                    'LIN_unit_price' => $unit_price,
-                    'LIN_percent'    => $percent,
-                    'LIN_type'       => $price->is_tax() ? EEM_Line_Item::type_sub_tax
-                        : EEM_Line_Item::type_sub_line_item,
-                    'OBJ_ID'         => $price->ID(),
-                    'OBJ_type'       => EEM_Line_Item::OBJ_TYPE_PRICE,
-                ]
-            );
-            $sub_line_item         = apply_filters(
-                'FHEE__EEH_Line_Item__create_ticket_line_item__sub_line_item',
-                $sub_line_item
-            );
-            $running_pre_tax_total += ! $price->is_tax() ? $sign * $price_total : 0;
-            $line_item->add_child_line_item($sub_line_item);
-        }
-        $line_item->setPretaxTotal($running_pre_tax_total);
-        return $line_item;
-    }
-
-
-    /**
-     * Adds the specified item under the pre-tax-sub-total line item. Automatically
-     * re-calculates the line item totals and updates the related transaction. But
-     * DOES NOT automatically upgrade the transaction's registrations' final prices (which
-     * should probably change because of this).
-     * You should call EE_Registration_Processor::calculate_reg_final_prices_per_line_item()
-     * after using this, to keep the registration final prices in-sync with the transaction's total.
-     *
-     * @param EE_Line_Item $total_line_item
-     * @param EE_Line_Item $item to be added
-     * @param bool         $recalculate_totals
-     * @return boolean
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public static function add_item(
-        EE_Line_Item $total_line_item,
-        EE_Line_Item $item,
-        bool $recalculate_totals = true
-    ): bool {
-        $pre_tax_subtotal = self::get_pre_tax_subtotal($total_line_item);
-        $success          = $pre_tax_subtotal->add_child_line_item($item);
-        if ($recalculate_totals) {
-            $total_line_item->recalculate_total_including_taxes();
-        }
-        return $success;
-    }
-
-
-    /**
-     * cancels an existing ticket line item,
-     * by decrementing its quantity by 1 and adding a new "type_cancellation" sub-line-item.
-     * ALL totals and subtotals will NEED TO BE UPDATED after performing this action
-     *
-     * @param EE_Line_Item $ticket_line_item
-     * @param int          $qty
-     * @return bool success
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public static function cancel_ticket_line_item(EE_Line_Item $ticket_line_item, int $qty = 1): bool
-    {
-        // validate incoming line_item
-        if ($ticket_line_item->OBJ_type() !== EEM_Line_Item::OBJ_TYPE_TICKET) {
-            throw new EE_Error(
-                sprintf(
-                    esc_html__(
-                        'The supplied line item must have an Object Type of "Ticket", not %1$s.',
-                        'event_espresso'
-                    ),
-                    $ticket_line_item->type()
-                )
-            );
-        }
-        if ($ticket_line_item->quantity() < $qty) {
-            throw new EE_Error(
-                sprintf(
-                    esc_html__(
-                        'Can not cancel %1$d ticket(s) because the supplied line item has a quantity of %2$d.',
-                        'event_espresso'
-                    ),
-                    $qty,
-                    $ticket_line_item->quantity()
-                )
-            );
-        }
-        // decrement ticket quantity; don't rely on auto-fixing when recalculating totals to do this
-        $ticket_line_item->set_quantity($ticket_line_item->quantity() - $qty);
-        foreach ($ticket_line_item->children() as $child_line_item) {
-            if (
-                $child_line_item->is_sub_line_item()
-                && ! $child_line_item->is_percent()
-                && ! $child_line_item->is_cancellation()
-            ) {
-                $child_line_item->set_quantity($child_line_item->quantity() - $qty);
-            }
-        }
-        // get cancellation sub line item
-        $cancellation_line_item = EEH_Line_Item::get_descendants_of_type(
-            $ticket_line_item,
-            EEM_Line_Item::type_cancellation
-        );
-        $cancellation_line_item = reset($cancellation_line_item);
-        // verify that this ticket was indeed previously cancelled
-        if ($cancellation_line_item instanceof EE_Line_Item) {
-            // increment cancelled quantity
-            $cancellation_line_item->set_quantity($cancellation_line_item->quantity() + $qty);
-        } else {
-            // create cancellation sub line item
-            $cancellation_line_item = EE_Line_Item::new_instance(
-                [
-                    'LIN_name'       => esc_html__('Cancellation', 'event_espresso'),
-                    'LIN_desc'       => sprintf(
-                        esc_html_x(
-                            'Cancelled %1$s : %2$s',
-                            'Cancelled Ticket Name : 2015-01-01 11:11',
-                            'event_espresso'
-                        ),
-                        $ticket_line_item->name(),
-                        current_time(get_option('date_format') . ' ' . get_option('time_format'))
-                    ),
-                    'LIN_unit_price' => 0, // $ticket_line_item->unit_price()
-                    'LIN_quantity'   => $qty,
-                    'LIN_is_taxable' => $ticket_line_item->is_taxable(),
-                    'LIN_order'      => count($ticket_line_item->children()),
-                    'LIN_total'      => 0, // $ticket_line_item->unit_price()
-                    'LIN_type'       => EEM_Line_Item::type_cancellation,
-                ]
-            );
-            $ticket_line_item->add_child_line_item($cancellation_line_item);
-        }
-        if ($ticket_line_item->save_this_and_descendants() > 0) {
-            // decrement parent line item quantity
-            $event_line_item = $ticket_line_item->parent();
-            if (
-                $event_line_item instanceof EE_Line_Item
-                && $event_line_item->OBJ_type() === EEM_Line_Item::OBJ_TYPE_EVENT
-            ) {
-                $event_line_item->set_quantity($event_line_item->quantity() - $qty);
-                $event_line_item->save();
-            }
-            EEH_Line_Item::get_grand_total_and_recalculate_everything($ticket_line_item);
-            return true;
-        }
-        return false;
-    }
-
-
-    /**
-     * reinstates (un-cancels?) a previously canceled ticket line item,
-     * by incrementing its quantity by 1, and decrementing its "type_cancellation" sub-line-item.
-     * ALL totals and subtotals will NEED TO BE UPDATED after performing this action
-     *
-     * @param EE_Line_Item $ticket_line_item
-     * @param int          $qty
-     * @return bool success
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public static function reinstate_canceled_ticket_line_item(EE_Line_Item $ticket_line_item, int $qty = 1): bool
-    {
-        // validate incoming line_item
-        if ($ticket_line_item->OBJ_type() !== EEM_Line_Item::OBJ_TYPE_TICKET) {
-            throw new EE_Error(
-                sprintf(
-                    esc_html__(
-                        'The supplied line item must have an Object Type of "Ticket", not %1$s.',
-                        'event_espresso'
-                    ),
-                    $ticket_line_item->type()
-                )
-            );
-        }
-        // get cancellation sub line item
-        $cancellation_line_item = EEH_Line_Item::get_descendants_of_type(
-            $ticket_line_item,
-            EEM_Line_Item::type_cancellation
-        );
-        $cancellation_line_item = reset($cancellation_line_item);
-        // verify that this ticket was indeed previously cancelled
-        if (! $cancellation_line_item instanceof EE_Line_Item) {
-            return false;
-        }
-        if ($cancellation_line_item->quantity() > $qty) {
-            // decrement cancelled quantity
-            $cancellation_line_item->set_quantity($cancellation_line_item->quantity() - $qty);
-        } elseif ($cancellation_line_item->quantity() === $qty) {
-            // decrement cancelled quantity in case anyone still has the object kicking around
-            $cancellation_line_item->set_quantity($cancellation_line_item->quantity() - $qty);
-            // delete because quantity will end up as 0
-            $cancellation_line_item->delete();
-            // and attempt to destroy the object,
-            // even though PHP won't actually destroy it until it needs the memory
-            unset($cancellation_line_item);
-        } else {
-            // what ?!?! negative quantity ?!?!
-            throw new EE_Error(
-                sprintf(
-                    esc_html__(
-                        'Can not reinstate %1$d cancelled ticket(s) because the cancelled ticket quantity is only %2$d.',
-                        'event_espresso'
-                    ),
-                    $qty,
-                    $cancellation_line_item->quantity()
-                )
-            );
-        }
-        // increment ticket quantity
-        $ticket_line_item->set_quantity($ticket_line_item->quantity() + $qty);
-        if ($ticket_line_item->save_this_and_descendants() > 0) {
-            // increment parent line item quantity
-            $event_line_item = $ticket_line_item->parent();
-            if (
-                $event_line_item instanceof EE_Line_Item
-                && $event_line_item->OBJ_type() === EEM_Line_Item::OBJ_TYPE_EVENT
-            ) {
-                $event_line_item->set_quantity($event_line_item->quantity() + $qty);
-            }
-            EEH_Line_Item::get_grand_total_and_recalculate_everything($ticket_line_item);
-            return true;
-        }
-        return false;
-    }
-
-
-    /**
-     * calls EEH_Line_Item::find_transaction_grand_total_for_line_item()
-     * then EE_Line_Item::recalculate_total_including_taxes() on the result
-     *
-     * @param EE_Line_Item $line_item
-     * @return float
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public static function get_grand_total_and_recalculate_everything(EE_Line_Item $line_item): float
-    {
-        $grand_total_line_item = EEH_Line_Item::find_transaction_grand_total_for_line_item($line_item);
-        return $grand_total_line_item->recalculate_total_including_taxes();
-    }
-
-
-    /**
-     * Gets the line item which contains the subtotal of all the items
-     *
-     * @param EE_Line_Item $total_line_item of type EEM_Line_Item::type_total
-     * @return EE_Line_Item
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public static function get_pre_tax_subtotal(EE_Line_Item $total_line_item): EE_Line_Item
-    {
-        $pre_tax_subtotal = $total_line_item->get_child_line_item('pre-tax-subtotal');
-        return $pre_tax_subtotal instanceof EE_Line_Item
-            ? $pre_tax_subtotal
-            : self::create_pre_tax_subtotal($total_line_item);
-    }
-
-
-    /**
-     * Gets the line item for the taxes subtotal
-     *
-     * @param EE_Line_Item $total_line_item of type EEM_Line_Item::type_total
-     * @return EE_Line_Item
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public static function get_taxes_subtotal(EE_Line_Item $total_line_item): EE_Line_Item
-    {
-        $taxes = $total_line_item->get_child_line_item('taxes');
-        return $taxes ?: self::create_taxes_subtotal($total_line_item);
-    }
-
-
-    /**
-     * sets the TXN ID on an EE_Line_Item if passed a valid EE_Transaction object
-     *
-     * @param EE_Line_Item        $line_item
-     * @param EE_Transaction|null $transaction
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public static function set_TXN_ID(EE_Line_Item $line_item, ?EE_Transaction $transaction = null)
-    {
-        if ($transaction) {
-            /** @type EEM_Transaction $EEM_Transaction */
-            $EEM_Transaction = EE_Registry::instance()->load_model('Transaction');
-            $TXN_ID          = $EEM_Transaction->ensure_is_ID($transaction);
-            $line_item->set_TXN_ID($TXN_ID);
-        }
-    }
-
-
-    /**
-     * Creates a new default total line item for the transaction,
-     * and its tickets subtotal and taxes subtotal line items (and adds the
-     * existing taxes as children of the taxes subtotal line item)
-     *
-     * @param EE_Transaction|null $transaction
-     * @return EE_Line_Item of type total
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public static function create_total_line_item(?EE_Transaction $transaction = null): EE_Line_Item
-    {
-        $total_line_item = EE_Line_Item::new_instance(
-            [
-                'LIN_code' => 'total',
-                'LIN_name' => esc_html__('Grand Total', 'event_espresso'),
-                'LIN_type' => EEM_Line_Item::type_total,
-                'OBJ_type' => EEM_Line_Item::OBJ_TYPE_TRANSACTION,
-            ]
-        );
-        $total_line_item = apply_filters(
-            'FHEE__EEH_Line_Item__create_total_line_item__total_line_item',
-            $total_line_item
-        );
-        self::set_TXN_ID($total_line_item, $transaction);
-        self::create_pre_tax_subtotal($total_line_item, $transaction);
-        self::create_taxes_subtotal($total_line_item, $transaction);
-        return $total_line_item;
-    }
-
-
-    /**
-     * Creates a default items subtotal line item
-     *
-     * @param EE_Line_Item        $total_line_item
-     * @param EE_Transaction|null $transaction
-     * @return EE_Line_Item
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    protected static function create_pre_tax_subtotal(
-        EE_Line_Item $total_line_item,
-        ?EE_Transaction $transaction = null
-    ): EE_Line_Item {
-        $pre_tax_line_item = EE_Line_Item::new_instance(
-            [
-                'LIN_code' => 'pre-tax-subtotal',
-                'LIN_name' => esc_html__('Pre-Tax Subtotal', 'event_espresso'),
-                'LIN_type' => EEM_Line_Item::type_sub_total,
-            ]
-        );
-        $pre_tax_line_item = apply_filters(
-            'FHEE__EEH_Line_Item__create_pre_tax_subtotal__pre_tax_line_item',
-            $pre_tax_line_item
-        );
-        self::set_TXN_ID($pre_tax_line_item, $transaction);
-        $total_line_item->add_child_line_item($pre_tax_line_item);
-        self::create_event_subtotal($pre_tax_line_item, $transaction);
-        return $pre_tax_line_item;
-    }
-
-
-    /**
-     * Creates a line item for the taxes subtotal and finds all the tax prices
-     * and applies taxes to it
-     *
-     * @param EE_Line_Item        $total_line_item of type EEM_Line_Item::type_total
-     * @param EE_Transaction|null $transaction
-     * @return EE_Line_Item
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    protected static function create_taxes_subtotal(
-        EE_Line_Item $total_line_item,
-        ?EE_Transaction $transaction = null
-    ): EE_Line_Item {
-        $tax_line_item = EE_Line_Item::new_instance(
-            [
-                'LIN_code'  => 'taxes',
-                'LIN_name'  => esc_html__('Taxes', 'event_espresso'),
-                'LIN_type'  => EEM_Line_Item::type_tax_sub_total,
-                'LIN_order' => 1000,// this should always come last
-            ]
-        );
-        $tax_line_item = apply_filters(
-            'FHEE__EEH_Line_Item__create_taxes_subtotal__tax_line_item',
-            $tax_line_item
-        );
-        self::set_TXN_ID($tax_line_item, $transaction);
-        $total_line_item->add_child_line_item($tax_line_item);
-        // and lastly, add the actual taxes
-        self::apply_taxes($total_line_item);
-        return $tax_line_item;
-    }
-
-
-    /**
-     * Creates a default items subtotal line item
-     *
-     * @param EE_Line_Item        $pre_tax_line_item
-     * @param EE_Transaction|null $transaction
-     * @param EE_Event|null       $event
-     * @return EE_Line_Item
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public static function create_event_subtotal(
-        EE_Line_Item $pre_tax_line_item,
-        ?EE_Transaction $transaction = null,
-        ?EE_Event $event = null
-    ): EE_Line_Item {
-        $event_line_item = EE_Line_Item::new_instance(
-            [
-                'LIN_code' => self::get_event_code($event),
-                'LIN_name' => self::get_event_name($event),
-                'LIN_desc' => self::get_event_desc($event),
-                'LIN_type' => EEM_Line_Item::type_sub_total,
-                'OBJ_type' => EEM_Line_Item::OBJ_TYPE_EVENT,
-                'OBJ_ID'   => $event instanceof EE_Event ? $event->ID() : 0,
-            ]
-        );
-        $event_line_item = apply_filters(
-            'FHEE__EEH_Line_Item__create_event_subtotal__event_line_item',
-            $event_line_item
-        );
-        self::set_TXN_ID($event_line_item, $transaction);
-        $pre_tax_line_item->add_child_line_item($event_line_item);
-        return $event_line_item;
-    }
-
-
-    /**
-     * Gets what the event ticket's code SHOULD be
-     *
-     * @param EE_Event|null $event
-     * @return string
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function get_event_code(?EE_Event $event = null): string
-    {
-        return 'event-' . ($event instanceof EE_Event ? $event->ID() : '0');
-    }
-
-
-    /**
-     * Gets the event name
-     *
-     * @param EE_Event|null $event
-     * @return string
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function get_event_name(?EE_Event $event = null): string
-    {
-        return $event instanceof EE_Event
-            ? mb_substr($event->name(), 0, 245)
-            : esc_html__('Event', 'event_espresso');
-    }
-
-
-    /**
-     * Gets the event excerpt
-     *
-     * @param EE_Event|null $event
-     * @return string
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function get_event_desc(?EE_Event $event = null): string
-    {
-        return $event instanceof EE_Event ? $event->short_description() : '';
-    }
-
-
-    /**
-     * Given the grand total line item and a ticket, finds the event sub-total
-     * line item the ticket's purchase should be added onto
-     *
-     * @access public
-     * @param EE_Line_Item $grand_total the grand total line item
-     * @param EE_Ticket    $ticket
-     * @return EE_Line_Item
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public static function get_event_line_item_for_ticket(EE_Line_Item $grand_total, EE_Ticket $ticket): EE_Line_Item
-    {
-        $first_datetime = $ticket->first_datetime();
-        if (! $first_datetime instanceof EE_Datetime) {
-            throw new EE_Error(
-                sprintf(
-                    esc_html__('The supplied ticket (ID %d) has no datetimes', 'event_espresso'),
-                    $ticket->ID()
-                )
-            );
-        }
-        $event = $first_datetime->event();
-        if (! $event instanceof EE_Event) {
-            throw new EE_Error(
-                sprintf(
-                    esc_html__(
-                        'The supplied ticket (ID %d) has no event data associated with it.',
-                        'event_espresso'
-                    ),
-                    $ticket->ID()
-                )
-            );
-        }
-        $events_sub_total = EEH_Line_Item::get_event_line_item($grand_total, $event);
-        if (! $events_sub_total instanceof EE_Line_Item) {
-            throw new EE_Error(
-                sprintf(
-                    esc_html__(
-                        'There is no events sub-total for ticket %s on total line item %d',
-                        'event_espresso'
-                    ),
-                    $ticket->ID(),
-                    $grand_total->ID()
-                )
-            );
-        }
-        return $events_sub_total;
-    }
-
-
-    /**
-     * Gets the event line item
-     *
-     * @param EE_Line_Item  $grand_total
-     * @param EE_Event|null $event
-     * @return EE_Line_Item for the event subtotal which is a child of $grand_total
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public static function get_event_line_item(EE_Line_Item $grand_total, ?EE_Event $event = null): ?EE_Line_Item
-    {
-        /** @type EE_Event $event */
-        $event           = EEM_Event::instance()->ensure_is_obj($event, true);
-        $event_line_item = null;
-        $found           = false;
-        foreach (EEH_Line_Item::get_event_subtotals($grand_total) as $event_line_item) {
-            // default event subtotal, we should only ever find this the first time this method is called
-            if (! $event_line_item->OBJ_ID()) {
-                // let's use this! but first... set the event details
-                EEH_Line_Item::set_event_subtotal_details($event_line_item, $event);
-                $found = true;
-                break;
-            }
-            if ($event_line_item->OBJ_ID() === $event->ID()) {
-                // found existing line item for this event in the cart, so break out of loop and use this one
-                $found = true;
-                break;
-            }
-        }
-        if (! $found) {
-            // there is no event sub-total yet, so add it
-            $pre_tax_subtotal = EEH_Line_Item::get_pre_tax_subtotal($grand_total);
-            // create a new "event" subtotal below that
-            $event_line_item = EEH_Line_Item::create_event_subtotal($pre_tax_subtotal, null, $event);
-            // and set the event details
-            EEH_Line_Item::set_event_subtotal_details($event_line_item, $event);
-        }
-        return $event_line_item;
-    }
-
-
-    /**
-     * Creates a default items subtotal line item
-     *
-     * @param EE_Line_Item        $event_line_item
-     * @param EE_Event|null       $event
-     * @param EE_Transaction|null $transaction
-     * @return void
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public static function set_event_subtotal_details(
-        EE_Line_Item $event_line_item,
-        EE_Event $event = null,
-        ?EE_Transaction $transaction = null
-    ) {
-        if ($event instanceof EE_Event) {
-            $event_line_item->set_code(self::get_event_code($event));
-            $event_line_item->set_name(self::get_event_name($event));
-            $event_line_item->set_desc(self::get_event_desc($event));
-            $event_line_item->set_OBJ_ID($event->ID());
-        }
-        self::set_TXN_ID($event_line_item, $transaction);
-    }
-
-
-    /**
-     * Finds what taxes should apply, adds them as tax line items under the taxes sub-total,
-     * and recalculates the taxes sub-total and the grand total. Resets the taxes, so
-     * any old taxes are removed
-     *
-     * @param EE_Line_Item $total_line_item of type EEM_Line_Item::type_total
-     * @param bool         $update_txn_status
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     * @throws RuntimeException
-     */
-    public static function apply_taxes(EE_Line_Item $total_line_item, bool $update_txn_status = false): bool
-    {
-        $total_line_item       = EEH_Line_Item::find_transaction_grand_total_for_line_item($total_line_item);
-        $taxes_line_item       = self::get_taxes_subtotal($total_line_item);
-        $existing_global_taxes = $taxes_line_item->tax_descendants();
-        $updates               = false;
-        // loop thru taxes
-        $global_taxes = EEH_Line_Item::getGlobalTaxes();
-        foreach ($global_taxes as $order => $taxes) {
-            foreach ($taxes as $tax) {
-                if ($tax instanceof EE_Price) {
-                    $found = false;
-                    // check if this is already an existing tax
-                    foreach ($existing_global_taxes as $existing_global_tax) {
-                        if ($tax->ID() === $existing_global_tax->OBJ_ID()) {
-                            // maybe update the tax rate in case it has changed
-                            if ($existing_global_tax->percent() !== $tax->amount()) {
-                                $existing_global_tax->set_percent($tax->amount());
-                                $existing_global_tax->save();
-                                $updates = true;
-                            }
-                            $found = true;
-                            break;
-                        }
-                    }
-                    if (! $found) {
-                        // add a new line item for this global tax
-                        $tax_line_item = apply_filters(
-                            'FHEE__EEH_Line_Item__apply_taxes__tax_line_item',
-                            EE_Line_Item::new_instance(
-                                [
-                                    'LIN_name'       => $tax->name(),
-                                    'LIN_desc'       => $tax->desc(),
-                                    'LIN_percent'    => $tax->amount(),
-                                    'LIN_is_taxable' => false,
-                                    'LIN_order'      => $order,
-                                    'LIN_total'      => 0,
-                                    'LIN_type'       => EEM_Line_Item::type_tax,
-                                    'OBJ_type'       => EEM_Line_Item::OBJ_TYPE_PRICE,
-                                    'OBJ_ID'         => $tax->ID(),
-                                ]
-                            )
-                        );
-                        $updates       = $taxes_line_item->add_child_line_item($tax_line_item) ? true : $updates;
-                    }
-                }
-            }
-        }
-        // only recalculate totals if something changed
-        if ($updates || $update_txn_status) {
-            $total_line_item->recalculate_total_including_taxes($update_txn_status);
-            return true;
-        }
-        return false;
-    }
-
-
-    /**
-     * Ensures that taxes have been applied to the order, if not applies them.
-     * Returns the total amount of tax
-     *
-     * @param EE_Line_Item|null $total_line_item of type EEM_Line_Item::type_total
-     * @return float
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public static function ensure_taxes_applied(?EE_Line_Item $total_line_item): float
-    {
-        $taxes_subtotal = self::get_taxes_subtotal($total_line_item);
-        if (! $taxes_subtotal->children()) {
-            self::apply_taxes($total_line_item);
-        }
-        return $taxes_subtotal->total();
-    }
-
-
-    /**
-     * Deletes ALL children of the passed line item
-     *
-     * @param EE_Line_Item $parent_line_item
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public static function delete_all_child_items(EE_Line_Item $parent_line_item)
-    {
-        $deleted = 0;
-        foreach ($parent_line_item->children() as $child_line_item) {
-            if ($child_line_item instanceof EE_Line_Item) {
-                $deleted += EEH_Line_Item::delete_all_child_items($child_line_item);
-                if ($child_line_item->ID()) {
-                    $child_line_item->delete();
-                    unset($child_line_item);
-                } else {
-                    $parent_line_item->delete_child_line_item($child_line_item->code());
-                }
-                $deleted++;
-            }
-        }
-        return $deleted;
-    }
-
-
-    /**
-     * Deletes the line items as indicated by the line item code(s) provided,
-     * regardless of where they're found in the line item tree. Automatically
-     * re-calculates the line item totals and updates the related transaction. But
-     * DOES NOT automatically upgrade the transaction's registrations' final prices (which
-     * should probably change because of this).
-     * You should call EE_Registration_Processor::calculate_reg_final_prices_per_line_item()
-     * after using this, to keep the registration final prices in-sync with the transaction's total.
-     *
-     * @param EE_Line_Item      $total_line_item of type EEM_Line_Item::type_total
-     * @param array|bool|string $line_item_codes
-     * @return int number of items successfully removed
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function delete_items(EE_Line_Item $total_line_item, $line_item_codes = false)
-    {
-        if ($total_line_item->type() !== EEM_Line_Item::type_total) {
-            EE_Error::doing_it_wrong(
-                'EEH_Line_Item::delete_items',
-                esc_html__(
-                    'This static method should only be called with a TOTAL line item, otherwise we won\'t recalculate the totals correctly',
-                    'event_espresso'
-                ),
-                '4.6.18'
-            );
-        }
-
-        // check if only a single line_item_id was passed
-        if (! empty($line_item_codes) && ! is_array($line_item_codes)) {
-            // place single line_item_id in an array to appear as multiple line_item_ids
-            $line_item_codes = [$line_item_codes];
-        }
-        $removals = 0;
-        // cycle thru line_item_ids
-        foreach ($line_item_codes as $line_item_id) {
-            $removals += $total_line_item->delete_child_line_item($line_item_id);
-        }
-
-        if ($removals > 0) {
-            $total_line_item->recalculate_taxes_and_tax_total();
-            return $removals;
-        } else {
-            return false;
-        }
-    }
-
-
-    /**
-     * Overwrites the previous tax by clearing out the old taxes, and creates a new
-     * tax and updates the total line item accordingly
-     *
-     * @param EE_Line_Item $total_line_item
-     * @param float        $amount
-     * @param string       $name
-     * @param string       $description
-     * @param string       $code
-     * @param boolean      $add_to_existing_line_item
-     *                          if true, and a duplicate line item with the same code is found,
-     *                          $amount will be added onto it; otherwise will simply set the taxes to match $amount
-     * @return EE_Line_Item the new tax line item created
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public static function set_total_tax_to(
-        EE_Line_Item $total_line_item,
-        float $amount,
-        string $name = '',
-        string $description = '',
-        string $code = '',
-        bool $add_to_existing_line_item = false
-    ): EE_Line_Item {
-        $tax_subtotal  = self::get_taxes_subtotal($total_line_item);
-        $taxable_total = $total_line_item->taxable_total();
-
-        if ($add_to_existing_line_item) {
-            $new_tax = $tax_subtotal->get_child_line_item($code);
-            EEM_Line_Item::instance()->delete(
-                [['LIN_code' => ['!=', $code], 'LIN_parent' => $tax_subtotal->ID()]]
-            );
-        } else {
-            $new_tax = null;
-            $tax_subtotal->delete_children_line_items();
-        }
-        if ($new_tax) {
-            $new_tax->set_total($new_tax->total() + $amount);
-            $new_tax->set_percent($taxable_total ? $new_tax->total() / $taxable_total * 100 : 0);
-        } else {
-            // no existing tax item. Create it
-            $new_tax = EE_Line_Item::new_instance(
-                [
-                    'TXN_ID'      => $total_line_item->TXN_ID(),
-                    'LIN_name'    => $name ?: esc_html__('Tax', 'event_espresso'),
-                    'LIN_desc'    => $description ?: '',
-                    'LIN_percent' => $taxable_total ? ($amount / $taxable_total * 100) : 0,
-                    'LIN_total'   => $amount,
-                    'LIN_parent'  => $tax_subtotal->ID(),
-                    'LIN_type'    => EEM_Line_Item::type_tax,
-                    'LIN_code'    => $code,
-                ]
-            );
-        }
-
-        $new_tax = apply_filters(
-            'FHEE__EEH_Line_Item__set_total_tax_to__new_tax_subtotal',
-            $new_tax,
-            $total_line_item
-        );
-        $new_tax->save();
-        $tax_subtotal->set_total($new_tax->total());
-        $tax_subtotal->save();
-        $total_line_item->recalculate_total_including_taxes();
-        return $new_tax;
-    }
-
-
-    /**
-     * Makes all the line items which are children of $line_item taxable (or not).
-     * Does NOT save the line items
-     *
-     * @param EE_Line_Item $line_item
-     * @param boolean      $taxable
-     * @param string|null  $code_substring_for_whitelist if this string is part of the line item's code
-     *                                                   it will be whitelisted (ie, except from becoming taxable)
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function set_line_items_taxable(
-        EE_Line_Item $line_item,
-        bool $taxable = true,
-        ?string $code_substring_for_whitelist = null
-    ) {
-        $whitelisted = false;
-        if ($code_substring_for_whitelist !== null) {
-            $whitelisted = strpos($line_item->code(), $code_substring_for_whitelist) !== false;
-        }
-        if (! $whitelisted && $line_item->is_line_item()) {
-            $line_item->set_is_taxable($taxable);
-        }
-        foreach ($line_item->children() as $child_line_item) {
-            EEH_Line_Item::set_line_items_taxable(
-                $child_line_item,
-                $taxable,
-                $code_substring_for_whitelist
-            );
-        }
-    }
-
-
-    /**
-     * Gets all descendants that are event subtotals
-     *
-     * @param EE_Line_Item $parent_line_item - the line item to find descendants of
-     * @return EE_Line_Item[]
-     * @throws EE_Error
-     * @throws ReflectionException
-     * @uses  EEH_Line_Item::get_subtotals_of_object_type()
-     */
-    public static function get_event_subtotals(EE_Line_Item $parent_line_item): array
-    {
-        return self::get_subtotals_of_object_type($parent_line_item, EEM_Line_Item::OBJ_TYPE_EVENT);
-    }
-
-
-    /**
-     * Gets all descendants subtotals that match the supplied object type
-     *
-     * @param EE_Line_Item $parent_line_item - the line item to find descendants of
-     * @param string       $obj_type
-     * @return EE_Line_Item[]
-     * @throws EE_Error
-     * @throws ReflectionException
-     * @uses  EEH_Line_Item::_get_descendants_by_type_and_object_type()
-     */
-    public static function get_subtotals_of_object_type(EE_Line_Item $parent_line_item, string $obj_type = ''): array
-    {
-        return self::_get_descendants_by_type_and_object_type(
-            $parent_line_item,
-            EEM_Line_Item::type_sub_total,
-            $obj_type
-        );
-    }
-
-
-    /**
-     * Gets all descendants that are tickets
-     *
-     * @param EE_Line_Item $parent_line_item - the line item to find descendants of
-     * @return EE_Line_Item[]
-     * @throws EE_Error
-     * @throws ReflectionException
-     * @uses  EEH_Line_Item::get_line_items_of_object_type()
-     */
-    public static function get_ticket_line_items(EE_Line_Item $parent_line_item): array
-    {
-        return self::get_line_items_of_object_type(
-            $parent_line_item,
-            EEM_Line_Item::OBJ_TYPE_TICKET
-        );
-    }
-
-
-    /**
-     * Gets all descendants subtotals that match the supplied object type
-     *
-     * @param EE_Line_Item $parent_line_item - the line item to find descendants of
-     * @param string       $obj_type
-     * @return EE_Line_Item[]
-     * @throws EE_Error
-     * @throws ReflectionException
-     * @uses  EEH_Line_Item::_get_descendants_by_type_and_object_type()
-     */
-    public static function get_line_items_of_object_type(EE_Line_Item $parent_line_item, string $obj_type = ''): array
-    {
-        return self::_get_descendants_by_type_and_object_type(
-            $parent_line_item,
-            EEM_Line_Item::type_line_item,
-            $obj_type
-        );
-    }
-
-
-    /**
-     * Gets all the descendants (ie, children or children of children etc) that are of the type 'tax'
-     *
-     * @param EE_Line_Item $parent_line_item - the line item to find descendants of
-     * @return EE_Line_Item[]
-     * @throws EE_Error
-     * @throws ReflectionException
-     * @uses  EEH_Line_Item::get_descendants_of_type()
-     */
-    public static function get_tax_descendants(EE_Line_Item $parent_line_item): array
-    {
-        return EEH_Line_Item::get_descendants_of_type(
-            $parent_line_item,
-            EEM_Line_Item::type_tax
-        );
-    }
-
-
-    /**
-     * Gets all the real items purchased which are children of this item
-     *
-     * @param EE_Line_Item $parent_line_item - the line item to find descendants of
-     * @return EE_Line_Item[]
-     * @throws EE_Error
-     * @throws ReflectionException
-     * @uses  EEH_Line_Item::get_descendants_of_type()
-     */
-    public static function get_line_item_descendants(EE_Line_Item $parent_line_item): array
-    {
-        return EEH_Line_Item::get_descendants_of_type(
-            $parent_line_item,
-            EEM_Line_Item::type_line_item
-        );
-    }
-
-
-    /**
-     * Gets all descendants of supplied line item that match the supplied line item type
-     *
-     * @param EE_Line_Item $parent_line_item - the line item to find descendants of
-     * @param string       $line_item_type   one of the EEM_Line_Item constants
-     * @return EE_Line_Item[]
-     * @throws EE_Error
-     * @throws ReflectionException
-     * @uses  EEH_Line_Item::_get_descendants_by_type_and_object_type()
-     */
-    public static function get_descendants_of_type(EE_Line_Item $parent_line_item, string $line_item_type): array
-    {
-        return self::_get_descendants_by_type_and_object_type(
-            $parent_line_item,
-            $line_item_type
-        );
-    }
-
-
-    /**
-     * Gets all descendants of supplied line item that match the supplied line item type and possibly the object type
-     * as well
-     *
-     * @param EE_Line_Item $parent_line_item  - the line item to find descendants of
-     * @param string       $line_item_type    one of the EEM_Line_Item constants
-     * @param string|null  $obj_type          object model class name (minus prefix) or NULL to ignore object type when
-     *                                        searching
-     * @return EE_Line_Item[]
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    protected static function _get_descendants_by_type_and_object_type(
-        EE_Line_Item $parent_line_item,
-        string $line_item_type,
-        ?string $obj_type = null
-    ): array {
-        $objects = [];
-        foreach ($parent_line_item->children() as $child_line_item) {
-            if ($child_line_item instanceof EE_Line_Item) {
-                if (
-                    $child_line_item->type() === $line_item_type
-                    && (
-                        $child_line_item->OBJ_type() === $obj_type || $obj_type === null
-                    )
-                ) {
-                    $objects[] = $child_line_item;
-                } else {
-                    // go-through-all-its children looking for more matches
-                    $objects = array_merge(
-                        $objects,
-                        self::_get_descendants_by_type_and_object_type(
-                            $child_line_item,
-                            $line_item_type,
-                            $obj_type
-                        )
-                    );
-                }
-            }
-        }
-        return $objects;
-    }
-
-
-    /**
-     * Gets all descendants subtotals that match the supplied object type
-     *
-     * @param EE_Line_Item $parent_line_item - the line item to find descendants of
-     * @param string       $OBJ_type         object type (like Event)
-     * @param array        $OBJ_IDs          array of OBJ_IDs
-     * @return EE_Line_Item[]
-     * @throws EE_Error
-     * @throws ReflectionException
-     * @uses  EEH_Line_Item::_get_descendants_by_type_and_object_type()
-     */
-    public static function get_line_items_by_object_type_and_IDs(
-        EE_Line_Item $parent_line_item,
-        string $OBJ_type = '',
-        array $OBJ_IDs = []
-    ): array {
-        return self::_get_descendants_by_object_type_and_object_ID(
-            $parent_line_item,
-            $OBJ_type,
-            $OBJ_IDs
-        );
-    }
-
-
-    /**
-     * Gets all descendants of supplied line item that match the supplied line item type and possibly the object type
-     * as well
-     *
-     * @param EE_Line_Item $parent_line_item - the line item to find descendants of
-     * @param string       $OBJ_type         object type (like Event)
-     * @param array        $OBJ_IDs          array of OBJ_IDs
-     * @return EE_Line_Item[]
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    protected static function _get_descendants_by_object_type_and_object_ID(
-        EE_Line_Item $parent_line_item,
-        string $OBJ_type,
-        array $OBJ_IDs
-    ): array {
-        $objects = [];
-        foreach ($parent_line_item->children() as $child_line_item) {
-            if ($child_line_item instanceof EE_Line_Item) {
-                if (
-                    $child_line_item->OBJ_type() === $OBJ_type
-                    && in_array($child_line_item->OBJ_ID(), $OBJ_IDs)
-                ) {
-                    $objects[] = $child_line_item;
-                } else {
-                    // go-through-all-its children looking for more matches
-                    $objects = array_merge(
-                        $objects,
-                        self::_get_descendants_by_object_type_and_object_ID(
-                            $child_line_item,
-                            $OBJ_type,
-                            $OBJ_IDs
-                        )
-                    );
-                }
-            }
-        }
-        return $objects;
-    }
-
-
-    /**
-     * Uses a breadth-first-search in order to find the nearest descendant of
-     * the specified type and returns it, else NULL
-     *
-     * @param EE_Line_Item $parent_line_item - the line item to find descendants of
-     * @param string       $type             like one of the EEM_Line_Item::type_*
-     * @return EE_Line_Item
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     * @uses  EEH_Line_Item::_get_nearest_descendant()
-     */
-    public static function get_nearest_descendant_of_type(EE_Line_Item $parent_line_item, string $type): ?EE_Line_Item
-    {
-        return self::_get_nearest_descendant($parent_line_item, 'LIN_type', $type);
-    }
-
-
-    /**
-     * Uses a breadth-first-search in order to find the nearest descendant
-     * having the specified LIN_code and returns it, else NULL
-     *
-     * @param EE_Line_Item $parent_line_item - the line item to find descendants of
-     * @param string       $code             any value used for LIN_code
-     * @return EE_Line_Item
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     * @uses  EEH_Line_Item::_get_nearest_descendant()
-     */
-    public static function get_nearest_descendant_having_code(
-        EE_Line_Item $parent_line_item,
-        string $code
-    ): ?EE_Line_Item {
-        return self::_get_nearest_descendant($parent_line_item, 'LIN_code', $code);
-    }
-
-
-    /**
-     * Uses a breadth-first-search in order to find the nearest descendant
-     * having the specified LIN_code and returns it, else NULL
-     *
-     * @param EE_Line_Item $parent_line_item - the line item to find descendants of
-     * @param string       $search_field     name of EE_Line_Item property
-     * @param mixed        $value            any value stored in $search_field
-     * @return EE_Line_Item
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    protected static function _get_nearest_descendant(
-        EE_Line_Item $parent_line_item,
-        string $search_field,
-        $value
-    ): ?EE_Line_Item {
-        foreach ($parent_line_item->children() as $child) {
-            if ($child->get($search_field) == $value) {
-                return $child;
-            }
-        }
-        foreach ($parent_line_item->children() as $child) {
-            $descendant_found = self::_get_nearest_descendant(
-                $child,
-                $search_field,
-                $value
-            );
-            if ($descendant_found) {
-                return $descendant_found;
-            }
-        }
-        return null;
-    }
-
-
-    /**
-     * if passed line item has a TXN ID, uses that to jump directly to the grand total line item for the transaction,
-     * else recursively walks up the line item tree until a parent of type total is found,
-     *
-     * @param EE_Line_Item $line_item
-     * @return EE_Line_Item
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function find_transaction_grand_total_for_line_item(EE_Line_Item $line_item): EE_Line_Item
-    {
-        if ($line_item->is_total()) {
-            return $line_item;
-        }
-        if ($line_item->TXN_ID()) {
-            $total_line_item = $line_item->transaction()->total_line_item(false);
-            if ($total_line_item instanceof EE_Line_Item) {
-                return $total_line_item;
-            }
-        } else {
-            $line_item_parent = $line_item->parent();
-            if ($line_item_parent instanceof EE_Line_Item) {
-                if ($line_item_parent->is_total()) {
-                    return $line_item_parent;
-                }
-                return EEH_Line_Item::find_transaction_grand_total_for_line_item($line_item_parent);
-            }
-        }
-        throw new EE_Error(
-            sprintf(
-                esc_html__(
-                    'A valid grand total for line item %1$d was not found.',
-                    'event_espresso'
-                ),
-                $line_item->ID()
-            )
-        );
-    }
-
-
-    /**
-     * Prints out a representation of the line item tree
-     *
-     * @param EE_Line_Item $line_item
-     * @param int          $indentation
-     * @param bool         $top_level
-     * @return void
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function visualize(EE_Line_Item $line_item, int $indentation = 0, bool $top_level = true)
-    {
-        if (! defined('WP_DEBUG') || ! WP_DEBUG) {
-            return;
-        }
-        $testing  = defined('EE_TESTS_DIR');
-        $new_line = $testing ? "\n" : '<br />';
-        if ($top_level && ! $testing) {
-            echo '<div style="position: relative; z-index: 9999; margin: 2rem;">';
-            echo '<pre style="padding: 2rem 3rem; color: #00CCFF; background: #363636;">';
-        }
-        if ($top_level || $indentation) {
-            echo $new_line;
-        }
-        echo str_repeat('. ', $indentation);
-        $breakdown = '';
-        if ($line_item->is_line_item() || $line_item->is_sub_line_item() || $line_item->isSubTax()) {
-            if ($line_item->is_percent()) {
-                $breakdown = "{$line_item->percent()}%";
-            } else {
-                $breakdown = "\${$line_item->unit_price()} x {$line_item->quantity()}";
-            }
-        }
-        echo wp_kses($line_item->name(), AllowedTags::getAllowedTags());
-        echo " [ ID:{$line_item->ID()} | qty:{$line_item->quantity()} ] {$line_item->type()}";
-        echo " : \${$line_item->total()} : \${$line_item->pretaxTotal()}";
-        if ($breakdown) {
-            echo " ( $breakdown )";
-        }
-        if ($line_item->is_taxable()) {
-            echo '  * taxable';
-        }
-        if ($line_item->children()) {
-            foreach ($line_item->children() as $child) {
-                self::visualize($child, $indentation + 1, false);
-            }
-        }
-        if ($top_level && ! $testing) {
-            echo $new_line;
-            echo '</pre></div>';
-        }
-    }
-
-
-    /**
-     * Calculates the registration's final price, taking into account that they
-     * need to not only help pay for their OWN ticket, but also any transaction-wide surcharges and taxes,
-     * and receive a portion of any transaction-wide discounts.
-     * eg1, if I buy a $1 ticket and brent buys a $9 ticket, and we receive a $5 discount
-     * then I'll get 1/10 of that $5 discount, which is $0.50, and brent will get
-     * 9/10ths of that $5 discount, which is $4.50. So my final price should be $0.50
-     * and brent's final price should be $5.50.
-     * In order to do this, we basically need to traverse the line item tree calculating
-     * the running totals (just as if we were recalculating the total), but when we identify
-     * regular line items, we need to keep track of their share of the grand total.
-     * Also, we need to keep track of the TAXABLE total for each ticket purchase, so
-     * we can know how to apply taxes to it. (Note: "taxable total" does not equal the "pretax total"
-     * when there are non-taxable items; otherwise they would be the same)
-     *
-     * @param EE_Line_Item $line_item
-     * @param array        $billable_ticket_quantities          array of EE_Ticket IDs and their corresponding quantity
-     *                                                          that can be included in price calculations at this
-     *                                                          moment
-     * @return array        keys are line items for tickets IDs and values are their share of the running total,
-     *                                                          plus the key 'total', and 'taxable' which also has keys
-     *                                                          of all the ticket IDs. Eg array(
-     *                                                          12 => 4.3
-     *                                                          23 => 8.0
-     *                                                          'total' => 16.6,
-     *                                                          'taxable' => array(
-     *                                                          12 => 10,
-     *                                                          23 => 4
-     *                                                          ).
-     *                                                          So to find which registrations have which final price,
-     *                                                          we need to find which line item is theirs, which can be
-     *                                                          done with
-     *                                                          `EEM_Line_Item::instance()->get_line_item_for_registration(
-     *                                                          $registration );`
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public static function calculate_reg_final_prices_per_line_item(
-        EE_Line_Item $line_item,
-        array $billable_ticket_quantities = []
-    ): array {
-        $running_totals = [
-            'total'   => 0,
-            'taxable' => ['total' => 0],
-        ];
-        foreach ($line_item->children() as $child_line_item) {
-            switch ($child_line_item->type()) {
-                case EEM_Line_Item::type_sub_total:
-                    $running_totals_from_subtotal = EEH_Line_Item::calculate_reg_final_prices_per_line_item(
-                        $child_line_item,
-                        $billable_ticket_quantities
-                    );
-                    // combine arrays but preserve numeric keys
-                    $running_totals                     = array_replace_recursive(
-                        $running_totals_from_subtotal,
-                        $running_totals
-                    );
-                    $running_totals['total']            += $running_totals_from_subtotal['total'];
-                    $running_totals['taxable']['total'] += $running_totals_from_subtotal['taxable']['total'];
-                    break;
-
-                case EEM_Line_Item::type_tax_sub_total:
-                    // find how much the taxes percentage is
-                    if ($child_line_item->percent() !== 0.0) {
-                        $tax_percent_decimal = $child_line_item->percent() / 100;
-                    } else {
-                        $tax_percent_decimal = EE_Taxes::get_total_taxes_percentage() / 100;
-                    }
-                    // and apply to all the taxable totals, and add to the pretax totals
-                    foreach ($running_totals as $line_item_id => $this_running_total) {
-                        // "total" and "taxable" array key is an exception
-                        if ($line_item_id === 'taxable') {
-                            continue;
-                        }
-                        $taxable_total                   = $running_totals['taxable'][ $line_item_id ];
-                        $running_totals[ $line_item_id ] += ($taxable_total * $tax_percent_decimal);
-                    }
-                    break;
-
-                case EEM_Line_Item::type_line_item:
-                    // ticket line items or ????
-                    if ($child_line_item->OBJ_type() === EEM_Line_Item::OBJ_TYPE_TICKET) {
-                        // kk it's a ticket
-                        if (isset($running_totals[ $child_line_item->ID() ])) {
-                            // huh? that shouldn't happen.
-                            $running_totals['total'] += $child_line_item->total();
-                        } else {
-                            // it's not in our running totals yet. great.
-                            if ($child_line_item->is_taxable()) {
-                                $taxable_amount = $child_line_item->unit_price();
-                            } else {
-                                $taxable_amount = 0;
-                            }
-                            // are we only calculating totals for some tickets?
-                            if (isset($billable_ticket_quantities[ $child_line_item->OBJ_ID() ])) {
-                                $quantity = $billable_ticket_quantities[ $child_line_item->OBJ_ID() ];
-
-                                $running_totals[ $child_line_item->ID() ]            = $quantity
-                                    ? $child_line_item->unit_price()
-                                    : 0;
-                                $running_totals['taxable'][ $child_line_item->ID() ] = $quantity
-                                    ? $taxable_amount
-                                    : 0;
-                            } else {
-                                $quantity                                            = $child_line_item->quantity();
-                                $running_totals[ $child_line_item->ID() ]            = $child_line_item->unit_price();
-                                $running_totals['taxable'][ $child_line_item->ID() ] = $taxable_amount;
-                            }
-                            $running_totals['taxable']['total'] += $taxable_amount * $quantity;
-                            $running_totals['total']            += $child_line_item->unit_price() * $quantity;
-                        }
-                    } else {
-                        // it's some other type of item added to the cart
-                        // it should affect the running totals
-                        // basically we want to convert it into a PERCENT modifier. Because
-                        // more clearly affect all registration's final price equally
-                        $line_items_percent_of_running_total = $running_totals['total'] > 0
-                            ? ($child_line_item->total() / $running_totals['total']) + 1
-                            : 1;
-                        foreach ($running_totals as $line_item_id => $this_running_total) {
-                            // the "taxable" array key is an exception
-                            if ($line_item_id === 'taxable') {
-                                continue;
-                            }
-                            // update the running totals
-                            // yes this actually even works for the running grand total!
-                            $running_totals[ $line_item_id ] =
-                                $line_items_percent_of_running_total * $this_running_total;
-
-                            if ($child_line_item->is_taxable()) {
-                                $running_totals['taxable'][ $line_item_id ] =
-                                    $line_items_percent_of_running_total * $running_totals['taxable'][ $line_item_id ];
-                            }
-                        }
-                    }
-                    break;
-            }
-        }
-        return $running_totals;
-    }
-
-
-    /**
-     * @param EE_Line_Item $total_line_item
-     * @param EE_Line_Item $ticket_line_item
-     * @return float | null
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws OutOfRangeException
-     * @throws ReflectionException
-     */
-    public static function calculate_final_price_for_ticket_line_item(
-        EE_Line_Item $total_line_item,
-        EE_Line_Item $ticket_line_item
-    ): ?float {
-        static $final_prices_per_ticket_line_item = [];
-        if (
-            empty($final_prices_per_ticket_line_item)
-            || empty($final_prices_per_ticket_line_item[ $total_line_item->ID() ])
-        ) {
-            $final_prices_per_ticket_line_item[ $total_line_item->ID() ] =
-                EEH_Line_Item::calculate_reg_final_prices_per_line_item(
-                    $total_line_item
-                );
-        }
-        // ok now find this new registration's final price
-        if (isset($final_prices_per_ticket_line_item[ $total_line_item->ID() ][ $ticket_line_item->ID() ])) {
-            return $final_prices_per_ticket_line_item[ $total_line_item->ID() ][ $ticket_line_item->ID() ];
-        }
-        $message = sprintf(
-            esc_html__(
-                'The final price for the ticket line item (ID:%1$d) on the total line item (ID:%2$d) could not be calculated.',
-                'event_espresso'
-            ),
-            $ticket_line_item->ID(),
-            $total_line_item->ID()
-        );
-        if (WP_DEBUG) {
-            $message .= '<br>' . print_r($final_prices_per_ticket_line_item, true);
-            throw new OutOfRangeException($message);
-        }
-        EE_Log::instance()->log(__CLASS__, __FUNCTION__, $message);
-        return null;
-    }
-
-
-    /**
-     * Creates a duplicate of the line item tree, except only includes billable items
-     * and the portion of line items attributed to billable things
-     *
-     * @param EE_Line_Item      $line_item
-     * @param EE_Registration[] $registrations
-     * @return EE_Line_Item
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public static function billable_line_item_tree(EE_Line_Item $line_item, array $registrations): EE_Line_Item
-    {
-        $copy_li = EEH_Line_Item::billable_line_item($line_item, $registrations);
-        foreach ($line_item->children() as $child_li) {
-            $copy_li->add_child_line_item(
-                EEH_Line_Item::billable_line_item_tree($child_li, $registrations)
-            );
-        }
-        // if this is the grand total line item, make sure the totals all add up
-        // (we could have duplicated this logic AS we copied the line items, but
-        // it seems DRYer this way)
-        if ($copy_li->type() === EEM_Line_Item::type_total) {
-            $copy_li->recalculate_total_including_taxes();
-        }
-        return $copy_li;
-    }
-
-
-    /**
-     * Creates a new, unsaved line item from $line_item that factors in the
-     * number of billable registrations on $registrations.
-     *
-     * @param EE_Line_Item      $line_item
-     * @param EE_Registration[] $registrations
-     * @return EE_Line_Item
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public static function billable_line_item(EE_Line_Item $line_item, array $registrations): EE_Line_Item
-    {
-        $new_li_fields = $line_item->model_field_array();
-        if (
-            $line_item->type() === EEM_Line_Item::type_line_item &&
-            $line_item->OBJ_type() === EEM_Line_Item::OBJ_TYPE_TICKET
-        ) {
-            $count = 0;
-            foreach ($registrations as $registration) {
-                if (
-                    $line_item->OBJ_ID() === $registration->ticket_ID() &&
-                    in_array(
-                        $registration->status_ID(),
-                        EEM_Registration::reg_statuses_that_allow_payment(),
-                        true
-                    )
-                ) {
-                    $count++;
-                }
-            }
-            $new_li_fields['LIN_quantity'] = $count;
-        }
-        // don't set the total. We'll leave that up to the code that calculates it
-        unset($new_li_fields['LIN_ID'], $new_li_fields['LIN_parent'], $new_li_fields['LIN_total']);
-        return EE_Line_Item::new_instance($new_li_fields);
-    }
-
-
-    /**
-     * Returns a modified line item tree where all the subtotals which have a total of 0
-     * are removed, and line items with a quantity of 0
-     *
-     * @param EE_Line_Item $line_item |null
-     * @return EE_Line_Item|null
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public static function non_empty_line_items(EE_Line_Item $line_item): ?EE_Line_Item
-    {
-        $copied_li = EEH_Line_Item::non_empty_line_item($line_item);
-        if ($copied_li === null) {
-            return null;
-        }
-        // if this is an event subtotal, we want to only include it if it
-        // has a non-zero total and at least one ticket line item child
-        $ticket_children = 0;
-        foreach ($line_item->children() as $child_li) {
-            $child_li_copy = EEH_Line_Item::non_empty_line_items($child_li);
-            if ($child_li_copy !== null) {
-                $copied_li->add_child_line_item($child_li_copy);
-                if (
-                    $child_li_copy->type() === EEM_Line_Item::type_line_item &&
-                    $child_li_copy->OBJ_type() === EEM_Line_Item::OBJ_TYPE_TICKET
-                ) {
-                    $ticket_children++;
-                }
-            }
-        }
-        // if this is an event subtotal with NO ticket children
-        // we basically want to ignore it
-        if (
-            $ticket_children === 0
-            && $line_item->type() === EEM_Line_Item::type_sub_total
-            && $line_item->OBJ_type() === EEM_Line_Item::OBJ_TYPE_EVENT
-            && $line_item->total() === 0.0
-        ) {
-            return null;
-        }
-        return $copied_li;
-    }
-
-
-    /**
-     * Creates a new, unsaved line item, but if it's a ticket line item
-     * with a total of 0, or a subtotal of 0, returns null instead
-     *
-     * @param EE_Line_Item $line_item
-     * @return EE_Line_Item
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     */
-    public static function non_empty_line_item(EE_Line_Item $line_item): ?EE_Line_Item
-    {
-        if (
-            $line_item->type() === EEM_Line_Item::type_line_item
-            && $line_item->OBJ_type() === EEM_Line_Item::OBJ_TYPE_TICKET
-            && $line_item->quantity() === 0
-        ) {
-            return null;
-        }
-        $new_li_fields = $line_item->model_field_array();
-        // don't set the total. We'll leave that up to the code that calculates it
-        unset($new_li_fields['LIN_ID'], $new_li_fields['LIN_parent']);
-        return EE_Line_Item::new_instance($new_li_fields);
-    }
-
-
-    /**
-     * Cycles through all the ticket line items for the supplied total line item
-     * and ensures that the line item's "is_taxable" field matches that of its corresponding ticket
-     *
-     * @param EE_Line_Item $total_line_item
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     * @since 4.9.79.p
-     */
-    public static function resetIsTaxableForTickets(EE_Line_Item $total_line_item)
-    {
-        $ticket_line_items = self::get_ticket_line_items($total_line_item);
-        foreach ($ticket_line_items as $ticket_line_item) {
-            if (
-                $ticket_line_item instanceof EE_Line_Item
-                && $ticket_line_item->OBJ_type() === EEM_Line_Item::OBJ_TYPE_TICKET
-            ) {
-                $ticket = $ticket_line_item->ticket();
-                if ($ticket instanceof EE_Ticket && $ticket->taxable() !== $ticket_line_item->is_taxable()) {
-                    $ticket_line_item->set_is_taxable($ticket->taxable());
-                    $ticket_line_item->save();
-                }
-            }
-        }
-    }
-
-
-    /**
-     * @return EE_Line_Item[]
-     * @throws EE_Error
-     * @throws ReflectionException
-     * @since   5.0.0.p
-     */
-    private static function getGlobalTaxes(): array
-    {
-        if (EEH_Line_Item::$global_taxes === null) {
-            /** @type EEM_Price $EEM_Price */
-            $EEM_Price = EE_Registry::instance()->load_model('Price');
-            // get array of taxes via Price Model
-            EEH_Line_Item::$global_taxes = $EEM_Price->get_all_prices_that_are_taxes();
-            ksort(EEH_Line_Item::$global_taxes);
-        }
-        return EEH_Line_Item::$global_taxes;
-    }
-
-
-
-    /**************************************** @DEPRECATED METHODS *************************************** */
-    /**
-     * @param EE_Line_Item $total_line_item
-     * @return EE_Line_Item
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     * @deprecated
-     */
-    public static function get_items_subtotal(EE_Line_Item $total_line_item): EE_Line_Item
-    {
-        EE_Error::doing_it_wrong(
-            'EEH_Line_Item::get_items_subtotal()',
-            sprintf(
-                esc_html__('Method replaced with %1$s', 'event_espresso'),
-                'EEH_Line_Item::get_pre_tax_subtotal()'
-            ),
-            '4.6.0'
-        );
-        return self::get_pre_tax_subtotal($total_line_item);
-    }
-
-
-    /**
-     * @param EE_Transaction|null $transaction
-     * @return EE_Line_Item
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     * @deprecated
-     */
-    public static function create_default_total_line_item(?EE_Transaction $transaction = null): EE_Line_Item
-    {
-        EE_Error::doing_it_wrong(
-            'EEH_Line_Item::create_default_total_line_item()',
-            sprintf(
-                esc_html__('Method replaced with %1$s', 'event_espresso'),
-                'EEH_Line_Item::create_total_line_item()'
-            ),
-            '4.6.0'
-        );
-        return self::create_total_line_item($transaction);
-    }
-
-
-    /**
-     * @param EE_Line_Item        $total_line_item
-     * @param EE_Transaction|null $transaction
-     * @return EE_Line_Item
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     * @deprecated
-     */
-    public static function create_default_tickets_subtotal(
-        EE_Line_Item $total_line_item,
-        ?EE_Transaction $transaction = null
-    ): EE_Line_Item {
-        EE_Error::doing_it_wrong(
-            'EEH_Line_Item::create_default_tickets_subtotal()',
-            sprintf(
-                esc_html__('Method replaced with %1$s', 'event_espresso'),
-                'EEH_Line_Item::create_pre_tax_subtotal()'
-            ),
-            '4.6.0'
-        );
-        return self::create_pre_tax_subtotal($total_line_item, $transaction);
-    }
-
-
-    /**
-     * @param EE_Line_Item        $total_line_item
-     * @param EE_Transaction|null $transaction
-     * @return EE_Line_Item
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     * @deprecated
-     */
-    public static function create_default_taxes_subtotal(
-        EE_Line_Item $total_line_item,
-        ?EE_Transaction $transaction = null
-    ): EE_Line_Item {
-        EE_Error::doing_it_wrong(
-            'EEH_Line_Item::create_default_taxes_subtotal()',
-            sprintf(
-                esc_html__('Method replaced with %1$s', 'event_espresso'),
-                'EEH_Line_Item::create_taxes_subtotal()'
-            ),
-            '4.6.0'
-        );
-        return self::create_taxes_subtotal($total_line_item, $transaction);
-    }
-
-
-    /**
-     * @param EE_Line_Item        $total_line_item
-     * @param EE_Transaction|null $transaction
-     * @return EE_Line_Item
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     * @throws ReflectionException
-     * @deprecated
-     */
-    public static function create_default_event_subtotal(
-        EE_Line_Item $total_line_item,
-        ?EE_Transaction $transaction = null
-    ): EE_Line_Item {
-        EE_Error::doing_it_wrong(
-            'EEH_Line_Item::create_default_event_subtotal()',
-            sprintf(
-                esc_html__('Method replaced with %1$s', 'event_espresso'),
-                'EEH_Line_Item::create_event_subtotal()'
-            ),
-            '4.6.0'
-        );
-        return self::create_event_subtotal($total_line_item, $transaction);
-    }
+	/**
+	 * @var EE_Line_Item[]|null
+	 */
+	private static ?array $global_taxes = null;
+
+
+	/**
+	 * Adds a simple item (unrelated to any other model object) to the provided PARENT line item.
+	 * Does NOT automatically re-calculate the line item totals or update the related transaction.
+	 * You should call recalculate_total_including_taxes() on the grant total line item after this
+	 * to update the subtotals, and EE_Registration_Processor::calculate_reg_final_prices_per_line_item()
+	 * to keep the registration final prices in-sync with the transaction's total.
+	 *
+	 * @param EE_Line_Item $parent_line_item
+	 * @param string       $name
+	 * @param float        $unit_price
+	 * @param string       $description
+	 * @param int          $quantity
+	 * @param boolean      $taxable
+	 * @param string|null  $code if set to a value, ensures there is only one line item with that code
+	 * @param bool         $return_item
+	 * @param bool         $recalculate_totals
+	 * @return boolean|EE_Line_Item success
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function add_unrelated_item(
+		EE_Line_Item $parent_line_item,
+		string $name,
+		float $unit_price,
+		string $description = '',
+		int $quantity = 1,
+		bool $taxable = false,
+		?string $code = null,
+		bool $return_item = false,
+		bool $recalculate_totals = true
+	) {
+		$items_subtotal = self::get_pre_tax_subtotal($parent_line_item);
+		$line_item      = EE_Line_Item::new_instance(
+			[
+				'LIN_name'       => $name,
+				'LIN_desc'       => $description,
+				'LIN_unit_price' => $unit_price,
+				'LIN_quantity'   => $quantity,
+				'LIN_percent'    => null,
+				'LIN_is_taxable' => $taxable,
+				'LIN_order'      => count($items_subtotal->children()),
+				'LIN_total'      => $unit_price * $quantity,
+				'LIN_type'       => EEM_Line_Item::type_line_item,
+				'LIN_code'       => $code,
+			]
+		);
+		$line_item      = apply_filters(
+			'FHEE__EEH_Line_Item__add_unrelated_item__line_item',
+			$line_item,
+			$parent_line_item
+		);
+		$added          = self::add_item($parent_line_item, $line_item, $recalculate_totals);
+		return $return_item ? $line_item : $added;
+	}
+
+
+	/**
+	 * Adds a simple item ( unrelated to any other model object) to the total line item,
+	 * in the correct spot in the line item tree. Does not automatically
+	 * re-calculate the line item totals, nor update the related transaction, nor upgrade the transaction's
+	 * registrations' final prices (which should probably change because of this).
+	 * You should call recalculate_total_including_taxes() on the grand total line item, then
+	 * update the transaction's total, and EE_Registration_Processor::update_registration_final_prices()
+	 * after using this, to keep the registration final prices in-sync with the transaction's total.
+	 *
+	 * @param EE_Line_Item $parent_line_item
+	 * @param string       $name
+	 * @param float        $percentage_amount
+	 * @param string       $description
+	 * @param boolean      $taxable
+	 * @param string|null  $code
+	 * @param bool         $return_item
+	 * @return boolean|EE_Line_Item success
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function add_percentage_based_item(
+		EE_Line_Item $parent_line_item,
+		string $name,
+		float $percentage_amount,
+		string $description = '',
+		bool $taxable = false,
+		?string $code = null,
+		bool $return_item = false
+	) {
+		$total     = $percentage_amount * $parent_line_item->total() / 100;
+		$line_item = EE_Line_Item::new_instance(
+			[
+				'LIN_name'       => $name,
+				'LIN_desc'       => $description,
+				'LIN_unit_price' => 0,
+				'LIN_percent'    => $percentage_amount,
+				'LIN_quantity'   => 1,
+				'LIN_is_taxable' => $taxable,
+				'LIN_total'      => $total,
+				'LIN_type'       => EEM_Line_Item::type_line_item,
+				'LIN_parent'     => $parent_line_item->ID(),
+				'LIN_code'       => $code,
+			]
+		);
+		$line_item = apply_filters(
+			'FHEE__EEH_Line_Item__add_percentage_based_item__line_item',
+			$line_item
+		);
+		$added     = $parent_line_item->add_child_line_item($line_item, false);
+		return $return_item ? $line_item : $added;
+	}
+
+
+	/**
+	 * Returns the new line item created by adding a purchase of the ticket
+	 * ensures that ticket line item is saved, and that cart total has been recalculated.
+	 * If this ticket has already been purchased, just increments its count.
+	 * Automatically re-calculates the line item totals and updates the related transaction. But
+	 * DOES NOT automatically upgrade the transaction's registrations' final prices (which
+	 * should probably change because of this).
+	 * You should call EE_Registration_Processor::calculate_reg_final_prices_per_line_item()
+	 * after using this, to keep the registration final prices in-sync with the transaction's total.
+	 *
+	 * @param EE_Line_Item|null $total_line_item grand total line item of type EEM_Line_Item::type_total
+	 * @param EE_Ticket         $ticket
+	 * @param int               $qty
+	 * @param bool              $recalculate_totals
+	 * @return EE_Line_Item
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function add_ticket_purchase(
+		?EE_Line_Item $total_line_item,
+		EE_Ticket $ticket,
+		int $qty = 1,
+		bool $recalculate_totals = true
+	): ?EE_Line_Item {
+		if (! $total_line_item instanceof EE_Line_Item || ! $total_line_item->is_total()) {
+			throw new EE_Error(
+				sprintf(
+					esc_html__(
+						'A valid line item total is required in order to add tickets. A line item of type "%s" was passed.',
+						'event_espresso'
+					),
+					$ticket->ID(),
+					$total_line_item->ID()
+				)
+			);
+		}
+		// either increment the qty for an existing ticket
+		$line_item = self::increment_ticket_qty_if_already_in_cart($total_line_item, $ticket, $qty);
+		// or add a new one
+		if (! $line_item instanceof EE_Line_Item) {
+			$line_item = self::create_ticket_line_item($total_line_item, $ticket, $qty);
+		}
+		if ($recalculate_totals) {
+			$total_line_item->recalculate_total_including_taxes();
+		}
+		return $line_item;
+	}
+
+
+	/**
+	 * Returns the new line item created by adding a purchase of the ticket
+	 *
+	 * @param EE_Line_Item|null $total_line_item
+	 * @param EE_Ticket         $ticket
+	 * @param int               $qty
+	 * @return EE_Line_Item
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public static function increment_ticket_qty_if_already_in_cart(
+		?EE_Line_Item $total_line_item,
+		EE_Ticket $ticket,
+		int $qty = 1
+	): ?EE_Line_Item {
+		$line_item = null;
+		if ($total_line_item instanceof EE_Line_Item && $total_line_item->is_total()) {
+			$ticket_line_items = EEH_Line_Item::get_ticket_line_items($total_line_item);
+			foreach ($ticket_line_items as $ticket_line_item) {
+				if (
+					$ticket_line_item instanceof EE_Line_Item
+					&& $ticket_line_item->OBJ_ID() === $ticket->ID()
+				) {
+					$line_item = $ticket_line_item;
+					break;
+				}
+			}
+		}
+		if ($line_item instanceof EE_Line_Item) {
+			EEH_Line_Item::increment_quantity($line_item, $qty);
+			return $line_item;
+		}
+		return null;
+	}
+
+
+	/**
+	 * Increments the line item and all its children's quantity by $qty (but percent line items are unaffected).
+	 * Does NOT save or recalculate other line items totals
+	 *
+	 * @param EE_Line_Item $line_item
+	 * @param int          $qty
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public static function increment_quantity(EE_Line_Item $line_item, int $qty = 1)
+	{
+		if (! $line_item->is_percent()) {
+			$qty += $line_item->quantity();
+			$line_item->set_quantity($qty);
+			$line_item->set_total($line_item->unit_price() * $qty);
+			$line_item->save();
+		}
+		foreach ($line_item->children() as $child) {
+			if ($child->is_sub_line_item()) {
+				EEH_Line_Item::update_quantity($child, $qty);
+			}
+		}
+	}
+
+
+	/**
+	 * Decrements the line item and all its children's quantity by $qty (but percent line items are unaffected).
+	 * Does NOT save or recalculate other line items totals
+	 *
+	 * @param EE_Line_Item $line_item
+	 * @param int          $qty
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public static function decrement_quantity(EE_Line_Item $line_item, int $qty = 1)
+	{
+		if (! $line_item->is_percent()) {
+			$qty = $line_item->quantity() - $qty;
+			$qty = max($qty, 0);
+			$line_item->set_quantity($qty);
+			$line_item->set_total($line_item->unit_price() * $qty);
+			$line_item->save();
+		}
+		foreach ($line_item->children() as $child) {
+			if ($child->is_sub_line_item()) {
+				EEH_Line_Item::update_quantity($child, $qty);
+			}
+		}
+	}
+
+
+	/**
+	 * Updates the line item and its children's quantities to the specified number.
+	 * Does NOT save them or recalculate totals.
+	 *
+	 * @param EE_Line_Item $line_item
+	 * @param int          $new_quantity
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public static function update_quantity(EE_Line_Item $line_item, int $new_quantity)
+	{
+		if (! $line_item->is_percent()) {
+			$line_item->set_quantity($new_quantity);
+			$line_item->set_total($line_item->unit_price() * $new_quantity);
+			$line_item->save();
+		}
+		foreach ($line_item->children() as $child) {
+			if ($child->is_sub_line_item()) {
+				EEH_Line_Item::update_quantity($child, $new_quantity);
+			}
+		}
+	}
+
+
+	/**
+	 * Returns the new line item created by adding a purchase of the ticket
+	 *
+	 * @param EE_Line_Item $total_line_item of type EEM_Line_Item::type_total
+	 * @param EE_Ticket    $ticket
+	 * @param int          $qty
+	 * @return EE_Line_Item
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public static function create_ticket_line_item(
+		EE_Line_Item $total_line_item,
+		EE_Ticket $ticket,
+		int $qty = 1
+	): EE_Line_Item {
+		$datetimes           = $ticket->datetimes();
+		$first_datetime      = reset($datetimes);
+		$first_datetime_name = esc_html__('Event', 'event_espresso');
+		if ($first_datetime instanceof EE_Datetime && $first_datetime->event() instanceof EE_Event) {
+			$first_datetime_name = $first_datetime->event()->name();
+		}
+		$event = sprintf(_x('(For %1$s)', '(For Event Name)', 'event_espresso'), $first_datetime_name);
+		// get event subtotal line
+		$events_sub_total = self::get_event_line_item_for_ticket($total_line_item, $ticket);
+		$taxes            = $ticket->tax_price_modifiers();
+		// add $ticket to cart
+		$line_item = EE_Line_Item::new_instance(
+			[
+				'LIN_name'       => $ticket->name(),
+				'LIN_desc'       => $ticket->description() !== '' ? $ticket->description() . ' ' . $event : $event,
+				'LIN_unit_price' => $ticket->price(),
+				'LIN_quantity'   => $qty,
+				'LIN_is_taxable' => empty($taxes) && $ticket->taxable(),
+				'LIN_order'      => count($events_sub_total->children()),
+				'LIN_total'      => $ticket->price() * $qty,
+				'LIN_type'       => EEM_Line_Item::type_line_item,
+				'OBJ_ID'         => $ticket->ID(),
+				'OBJ_type'       => EEM_Line_Item::OBJ_TYPE_TICKET,
+			]
+		);
+		$line_item = apply_filters(
+			'FHEE__EEH_Line_Item__create_ticket_line_item__line_item',
+			$line_item
+		);
+		if (! $line_item instanceof EE_Line_Item) {
+			throw new DomainException(
+				esc_html__('Invalid EE_Line_Item received.', 'event_espresso')
+			);
+		}
+		$events_sub_total->add_child_line_item($line_item);
+		// now add the sub-line items
+		$running_pre_tax_total = 0;
+		$prices                = $ticket->prices();
+		if (empty($prices)) {
+			// WUT?!?! NO PRICES??? Well, just create a default price then.
+			$default_price = EEM_Price::instance()->get_new_price();
+			if ($default_price->amount() !== $ticket->price()) {
+				$default_price->set_amount($ticket->price());
+			}
+			$default_price->save();
+			$ticket->_add_relation_to($default_price, 'Price');
+			$ticket->save();
+			$prices = [$default_price];
+		}
+		foreach ($prices as $price) {
+			$sign        = $price->is_discount() ? -1 : 1;
+			$price_total = $price->is_percent()
+				? $running_pre_tax_total * $price->amount() / 100
+				: $price->amount() * $qty;
+			if ($price->is_percent()) {
+				$percent    = $sign * $price->amount();
+				$unit_price = 0;
+			} else {
+				$percent    = 0;
+				$unit_price = $sign * $price->amount();
+			}
+
+			$price_desc = $price->desc();
+			$price_type = $price->type_obj();
+			$price_desc = $price_desc === '' && $price_type instanceof EE_Price_Type
+				? $price_type->name()
+				: $price_desc;
+
+			$sub_line_item         = EE_Line_Item::new_instance(
+				[
+					'LIN_name'       => $price->name(),
+					'LIN_desc'       => $price_desc,
+					'LIN_quantity'   => $price->is_percent() ? null : $qty,
+					'LIN_is_taxable' => false,
+					'LIN_order'      => $price->order(),
+					'LIN_total'      => $price_total,
+					'LIN_pretax'     => 0,
+					'LIN_unit_price' => $unit_price,
+					'LIN_percent'    => $percent,
+					'LIN_type'       => $price->is_tax() ? EEM_Line_Item::type_sub_tax
+						: EEM_Line_Item::type_sub_line_item,
+					'OBJ_ID'         => $price->ID(),
+					'OBJ_type'       => EEM_Line_Item::OBJ_TYPE_PRICE,
+				]
+			);
+			$sub_line_item         = apply_filters(
+				'FHEE__EEH_Line_Item__create_ticket_line_item__sub_line_item',
+				$sub_line_item
+			);
+			$running_pre_tax_total += ! $price->is_tax() ? $sign * $price_total : 0;
+			$line_item->add_child_line_item($sub_line_item);
+		}
+		$line_item->setPretaxTotal($running_pre_tax_total);
+		return $line_item;
+	}
+
+
+	/**
+	 * Adds the specified item under the pre-tax-sub-total line item. Automatically
+	 * re-calculates the line item totals and updates the related transaction. But
+	 * DOES NOT automatically upgrade the transaction's registrations' final prices (which
+	 * should probably change because of this).
+	 * You should call EE_Registration_Processor::calculate_reg_final_prices_per_line_item()
+	 * after using this, to keep the registration final prices in-sync with the transaction's total.
+	 *
+	 * @param EE_Line_Item $total_line_item
+	 * @param EE_Line_Item $item to be added
+	 * @param bool         $recalculate_totals
+	 * @return boolean
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public static function add_item(
+		EE_Line_Item $total_line_item,
+		EE_Line_Item $item,
+		bool $recalculate_totals = true
+	): bool {
+		$pre_tax_subtotal = self::get_pre_tax_subtotal($total_line_item);
+		$success          = $pre_tax_subtotal->add_child_line_item($item);
+		if ($recalculate_totals) {
+			$total_line_item->recalculate_total_including_taxes();
+		}
+		return $success;
+	}
+
+
+	/**
+	 * cancels an existing ticket line item,
+	 * by decrementing its quantity by 1 and adding a new "type_cancellation" sub-line-item.
+	 * ALL totals and subtotals will NEED TO BE UPDATED after performing this action
+	 *
+	 * @param EE_Line_Item $ticket_line_item
+	 * @param int          $qty
+	 * @return bool success
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public static function cancel_ticket_line_item(EE_Line_Item $ticket_line_item, int $qty = 1): bool
+	{
+		// validate incoming line_item
+		if ($ticket_line_item->OBJ_type() !== EEM_Line_Item::OBJ_TYPE_TICKET) {
+			throw new EE_Error(
+				sprintf(
+					esc_html__(
+						'The supplied line item must have an Object Type of "Ticket", not %1$s.',
+						'event_espresso'
+					),
+					$ticket_line_item->type()
+				)
+			);
+		}
+		if ($ticket_line_item->quantity() < $qty) {
+			throw new EE_Error(
+				sprintf(
+					esc_html__(
+						'Can not cancel %1$d ticket(s) because the supplied line item has a quantity of %2$d.',
+						'event_espresso'
+					),
+					$qty,
+					$ticket_line_item->quantity()
+				)
+			);
+		}
+		// decrement ticket quantity; don't rely on auto-fixing when recalculating totals to do this
+		$ticket_line_item->set_quantity($ticket_line_item->quantity() - $qty);
+		foreach ($ticket_line_item->children() as $child_line_item) {
+			if (
+				$child_line_item->is_sub_line_item()
+				&& ! $child_line_item->is_percent()
+				&& ! $child_line_item->is_cancellation()
+			) {
+				$child_line_item->set_quantity($child_line_item->quantity() - $qty);
+			}
+		}
+		// get cancellation sub line item
+		$cancellation_line_item = EEH_Line_Item::get_descendants_of_type(
+			$ticket_line_item,
+			EEM_Line_Item::type_cancellation
+		);
+		$cancellation_line_item = reset($cancellation_line_item);
+		// verify that this ticket was indeed previously cancelled
+		if ($cancellation_line_item instanceof EE_Line_Item) {
+			// increment cancelled quantity
+			$cancellation_line_item->set_quantity($cancellation_line_item->quantity() + $qty);
+		} else {
+			// create cancellation sub line item
+			$cancellation_line_item = EE_Line_Item::new_instance(
+				[
+					'LIN_name'       => esc_html__('Cancellation', 'event_espresso'),
+					'LIN_desc'       => sprintf(
+						esc_html_x(
+							'Cancelled %1$s : %2$s',
+							'Cancelled Ticket Name : 2015-01-01 11:11',
+							'event_espresso'
+						),
+						$ticket_line_item->name(),
+						current_time(get_option('date_format') . ' ' . get_option('time_format'))
+					),
+					'LIN_unit_price' => 0, // $ticket_line_item->unit_price()
+					'LIN_quantity'   => $qty,
+					'LIN_is_taxable' => $ticket_line_item->is_taxable(),
+					'LIN_order'      => count($ticket_line_item->children()),
+					'LIN_total'      => 0, // $ticket_line_item->unit_price()
+					'LIN_type'       => EEM_Line_Item::type_cancellation,
+				]
+			);
+			$ticket_line_item->add_child_line_item($cancellation_line_item);
+		}
+		if ($ticket_line_item->save_this_and_descendants() > 0) {
+			// decrement parent line item quantity
+			$event_line_item = $ticket_line_item->parent();
+			if (
+				$event_line_item instanceof EE_Line_Item
+				&& $event_line_item->OBJ_type() === EEM_Line_Item::OBJ_TYPE_EVENT
+			) {
+				$event_line_item->set_quantity($event_line_item->quantity() - $qty);
+				$event_line_item->save();
+			}
+			EEH_Line_Item::get_grand_total_and_recalculate_everything($ticket_line_item);
+			return true;
+		}
+		return false;
+	}
+
+
+	/**
+	 * reinstates (un-cancels?) a previously canceled ticket line item,
+	 * by incrementing its quantity by 1, and decrementing its "type_cancellation" sub-line-item.
+	 * ALL totals and subtotals will NEED TO BE UPDATED after performing this action
+	 *
+	 * @param EE_Line_Item $ticket_line_item
+	 * @param int          $qty
+	 * @return bool success
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public static function reinstate_canceled_ticket_line_item(EE_Line_Item $ticket_line_item, int $qty = 1): bool
+	{
+		// validate incoming line_item
+		if ($ticket_line_item->OBJ_type() !== EEM_Line_Item::OBJ_TYPE_TICKET) {
+			throw new EE_Error(
+				sprintf(
+					esc_html__(
+						'The supplied line item must have an Object Type of "Ticket", not %1$s.',
+						'event_espresso'
+					),
+					$ticket_line_item->type()
+				)
+			);
+		}
+		// get cancellation sub line item
+		$cancellation_line_item = EEH_Line_Item::get_descendants_of_type(
+			$ticket_line_item,
+			EEM_Line_Item::type_cancellation
+		);
+		$cancellation_line_item = reset($cancellation_line_item);
+		// verify that this ticket was indeed previously cancelled
+		if (! $cancellation_line_item instanceof EE_Line_Item) {
+			return false;
+		}
+		if ($cancellation_line_item->quantity() > $qty) {
+			// decrement cancelled quantity
+			$cancellation_line_item->set_quantity($cancellation_line_item->quantity() - $qty);
+		} elseif ($cancellation_line_item->quantity() === $qty) {
+			// decrement cancelled quantity in case anyone still has the object kicking around
+			$cancellation_line_item->set_quantity($cancellation_line_item->quantity() - $qty);
+			// delete because quantity will end up as 0
+			$cancellation_line_item->delete();
+			// and attempt to destroy the object,
+			// even though PHP won't actually destroy it until it needs the memory
+			unset($cancellation_line_item);
+		} else {
+			// what ?!?! negative quantity ?!?!
+			throw new EE_Error(
+				sprintf(
+					esc_html__(
+						'Can not reinstate %1$d cancelled ticket(s) because the cancelled ticket quantity is only %2$d.',
+						'event_espresso'
+					),
+					$qty,
+					$cancellation_line_item->quantity()
+				)
+			);
+		}
+		// increment ticket quantity
+		$ticket_line_item->set_quantity($ticket_line_item->quantity() + $qty);
+		if ($ticket_line_item->save_this_and_descendants() > 0) {
+			// increment parent line item quantity
+			$event_line_item = $ticket_line_item->parent();
+			if (
+				$event_line_item instanceof EE_Line_Item
+				&& $event_line_item->OBJ_type() === EEM_Line_Item::OBJ_TYPE_EVENT
+			) {
+				$event_line_item->set_quantity($event_line_item->quantity() + $qty);
+			}
+			EEH_Line_Item::get_grand_total_and_recalculate_everything($ticket_line_item);
+			return true;
+		}
+		return false;
+	}
+
+
+	/**
+	 * calls EEH_Line_Item::find_transaction_grand_total_for_line_item()
+	 * then EE_Line_Item::recalculate_total_including_taxes() on the result
+	 *
+	 * @param EE_Line_Item $line_item
+	 * @return float
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public static function get_grand_total_and_recalculate_everything(EE_Line_Item $line_item): float
+	{
+		$grand_total_line_item = EEH_Line_Item::find_transaction_grand_total_for_line_item($line_item);
+		return $grand_total_line_item->recalculate_total_including_taxes();
+	}
+
+
+	/**
+	 * Gets the line item which contains the subtotal of all the items
+	 *
+	 * @param EE_Line_Item $total_line_item of type EEM_Line_Item::type_total
+	 * @return EE_Line_Item
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public static function get_pre_tax_subtotal(EE_Line_Item $total_line_item): EE_Line_Item
+	{
+		$pre_tax_subtotal = $total_line_item->get_child_line_item('pre-tax-subtotal');
+		return $pre_tax_subtotal instanceof EE_Line_Item
+			? $pre_tax_subtotal
+			: self::create_pre_tax_subtotal($total_line_item);
+	}
+
+
+	/**
+	 * Gets the line item for the taxes subtotal
+	 *
+	 * @param EE_Line_Item $total_line_item of type EEM_Line_Item::type_total
+	 * @return EE_Line_Item
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public static function get_taxes_subtotal(EE_Line_Item $total_line_item): EE_Line_Item
+	{
+		$taxes = $total_line_item->get_child_line_item('taxes');
+		return $taxes ?: self::create_taxes_subtotal($total_line_item);
+	}
+
+
+	/**
+	 * sets the TXN ID on an EE_Line_Item if passed a valid EE_Transaction object
+	 *
+	 * @param EE_Line_Item        $line_item
+	 * @param EE_Transaction|null $transaction
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public static function set_TXN_ID(EE_Line_Item $line_item, ?EE_Transaction $transaction = null)
+	{
+		if ($transaction) {
+			/** @type EEM_Transaction $EEM_Transaction */
+			$EEM_Transaction = EE_Registry::instance()->load_model('Transaction');
+			$TXN_ID          = $EEM_Transaction->ensure_is_ID($transaction);
+			$line_item->set_TXN_ID($TXN_ID);
+		}
+	}
+
+
+	/**
+	 * Creates a new default total line item for the transaction,
+	 * and its tickets subtotal and taxes subtotal line items (and adds the
+	 * existing taxes as children of the taxes subtotal line item)
+	 *
+	 * @param EE_Transaction|null $transaction
+	 * @return EE_Line_Item of type total
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public static function create_total_line_item(?EE_Transaction $transaction = null): EE_Line_Item
+	{
+		$total_line_item = EE_Line_Item::new_instance(
+			[
+				'LIN_code' => 'total',
+				'LIN_name' => esc_html__('Grand Total', 'event_espresso'),
+				'LIN_type' => EEM_Line_Item::type_total,
+				'OBJ_type' => EEM_Line_Item::OBJ_TYPE_TRANSACTION,
+			]
+		);
+		$total_line_item = apply_filters(
+			'FHEE__EEH_Line_Item__create_total_line_item__total_line_item',
+			$total_line_item
+		);
+		self::set_TXN_ID($total_line_item, $transaction);
+		self::create_pre_tax_subtotal($total_line_item, $transaction);
+		self::create_taxes_subtotal($total_line_item, $transaction);
+		return $total_line_item;
+	}
+
+
+	/**
+	 * Creates a default items subtotal line item
+	 *
+	 * @param EE_Line_Item        $total_line_item
+	 * @param EE_Transaction|null $transaction
+	 * @return EE_Line_Item
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	protected static function create_pre_tax_subtotal(
+		EE_Line_Item $total_line_item,
+		?EE_Transaction $transaction = null
+	): EE_Line_Item {
+		$pre_tax_line_item = EE_Line_Item::new_instance(
+			[
+				'LIN_code' => 'pre-tax-subtotal',
+				'LIN_name' => esc_html__('Pre-Tax Subtotal', 'event_espresso'),
+				'LIN_type' => EEM_Line_Item::type_sub_total,
+			]
+		);
+		$pre_tax_line_item = apply_filters(
+			'FHEE__EEH_Line_Item__create_pre_tax_subtotal__pre_tax_line_item',
+			$pre_tax_line_item
+		);
+		self::set_TXN_ID($pre_tax_line_item, $transaction);
+		$total_line_item->add_child_line_item($pre_tax_line_item);
+		self::create_event_subtotal($pre_tax_line_item, $transaction);
+		return $pre_tax_line_item;
+	}
+
+
+	/**
+	 * Creates a line item for the taxes subtotal and finds all the tax prices
+	 * and applies taxes to it
+	 *
+	 * @param EE_Line_Item        $total_line_item of type EEM_Line_Item::type_total
+	 * @param EE_Transaction|null $transaction
+	 * @return EE_Line_Item
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	protected static function create_taxes_subtotal(
+		EE_Line_Item $total_line_item,
+		?EE_Transaction $transaction = null
+	): EE_Line_Item {
+		$tax_line_item = EE_Line_Item::new_instance(
+			[
+				'LIN_code'  => 'taxes',
+				'LIN_name'  => esc_html__('Taxes', 'event_espresso'),
+				'LIN_type'  => EEM_Line_Item::type_tax_sub_total,
+				'LIN_order' => 1000,// this should always come last
+			]
+		);
+		$tax_line_item = apply_filters(
+			'FHEE__EEH_Line_Item__create_taxes_subtotal__tax_line_item',
+			$tax_line_item
+		);
+		self::set_TXN_ID($tax_line_item, $transaction);
+		$total_line_item->add_child_line_item($tax_line_item);
+		// and lastly, add the actual taxes
+		self::apply_taxes($total_line_item);
+		return $tax_line_item;
+	}
+
+
+	/**
+	 * Creates a default items subtotal line item
+	 *
+	 * @param EE_Line_Item        $pre_tax_line_item
+	 * @param EE_Transaction|null $transaction
+	 * @param EE_Event|null       $event
+	 * @return EE_Line_Item
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public static function create_event_subtotal(
+		EE_Line_Item $pre_tax_line_item,
+		?EE_Transaction $transaction = null,
+		?EE_Event $event = null
+	): EE_Line_Item {
+		$event_line_item = EE_Line_Item::new_instance(
+			[
+				'LIN_code' => self::get_event_code($event),
+				'LIN_name' => self::get_event_name($event),
+				'LIN_desc' => self::get_event_desc($event),
+				'LIN_type' => EEM_Line_Item::type_sub_total,
+				'OBJ_type' => EEM_Line_Item::OBJ_TYPE_EVENT,
+				'OBJ_ID'   => $event instanceof EE_Event ? $event->ID() : 0,
+			]
+		);
+		$event_line_item = apply_filters(
+			'FHEE__EEH_Line_Item__create_event_subtotal__event_line_item',
+			$event_line_item
+		);
+		self::set_TXN_ID($event_line_item, $transaction);
+		$pre_tax_line_item->add_child_line_item($event_line_item);
+		return $event_line_item;
+	}
+
+
+	/**
+	 * Gets what the event ticket's code SHOULD be
+	 *
+	 * @param EE_Event|null $event
+	 * @return string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function get_event_code(?EE_Event $event = null): string
+	{
+		return 'event-' . ($event instanceof EE_Event ? $event->ID() : '0');
+	}
+
+
+	/**
+	 * Gets the event name
+	 *
+	 * @param EE_Event|null $event
+	 * @return string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function get_event_name(?EE_Event $event = null): string
+	{
+		return $event instanceof EE_Event
+			? mb_substr($event->name(), 0, 245)
+			: esc_html__('Event', 'event_espresso');
+	}
+
+
+	/**
+	 * Gets the event excerpt
+	 *
+	 * @param EE_Event|null $event
+	 * @return string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function get_event_desc(?EE_Event $event = null): string
+	{
+		return $event instanceof EE_Event ? $event->short_description() : '';
+	}
+
+
+	/**
+	 * Given the grand total line item and a ticket, finds the event sub-total
+	 * line item the ticket's purchase should be added onto
+	 *
+	 * @access public
+	 * @param EE_Line_Item $grand_total the grand total line item
+	 * @param EE_Ticket    $ticket
+	 * @return EE_Line_Item
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public static function get_event_line_item_for_ticket(EE_Line_Item $grand_total, EE_Ticket $ticket): EE_Line_Item
+	{
+		$first_datetime = $ticket->first_datetime();
+		if (! $first_datetime instanceof EE_Datetime) {
+			throw new EE_Error(
+				sprintf(
+					esc_html__('The supplied ticket (ID %d) has no datetimes', 'event_espresso'),
+					$ticket->ID()
+				)
+			);
+		}
+		$event = $first_datetime->event();
+		if (! $event instanceof EE_Event) {
+			throw new EE_Error(
+				sprintf(
+					esc_html__(
+						'The supplied ticket (ID %d) has no event data associated with it.',
+						'event_espresso'
+					),
+					$ticket->ID()
+				)
+			);
+		}
+		$events_sub_total = EEH_Line_Item::get_event_line_item($grand_total, $event);
+		if (! $events_sub_total instanceof EE_Line_Item) {
+			throw new EE_Error(
+				sprintf(
+					esc_html__(
+						'There is no events sub-total for ticket %s on total line item %d',
+						'event_espresso'
+					),
+					$ticket->ID(),
+					$grand_total->ID()
+				)
+			);
+		}
+		return $events_sub_total;
+	}
+
+
+	/**
+	 * Gets the event line item
+	 *
+	 * @param EE_Line_Item  $grand_total
+	 * @param EE_Event|null $event
+	 * @return EE_Line_Item for the event subtotal which is a child of $grand_total
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public static function get_event_line_item(EE_Line_Item $grand_total, ?EE_Event $event = null): ?EE_Line_Item
+	{
+		/** @type EE_Event $event */
+		$event           = EEM_Event::instance()->ensure_is_obj($event, true);
+		$event_line_item = null;
+		$found           = false;
+		foreach (EEH_Line_Item::get_event_subtotals($grand_total) as $event_line_item) {
+			// default event subtotal, we should only ever find this the first time this method is called
+			if (! $event_line_item->OBJ_ID()) {
+				// let's use this! but first... set the event details
+				EEH_Line_Item::set_event_subtotal_details($event_line_item, $event);
+				$found = true;
+				break;
+			}
+			if ($event_line_item->OBJ_ID() === $event->ID()) {
+				// found existing line item for this event in the cart, so break out of loop and use this one
+				$found = true;
+				break;
+			}
+		}
+		if (! $found) {
+			// there is no event sub-total yet, so add it
+			$pre_tax_subtotal = EEH_Line_Item::get_pre_tax_subtotal($grand_total);
+			// create a new "event" subtotal below that
+			$event_line_item = EEH_Line_Item::create_event_subtotal($pre_tax_subtotal, null, $event);
+			// and set the event details
+			EEH_Line_Item::set_event_subtotal_details($event_line_item, $event);
+		}
+		return $event_line_item;
+	}
+
+
+	/**
+	 * Creates a default items subtotal line item
+	 *
+	 * @param EE_Line_Item        $event_line_item
+	 * @param EE_Event|null       $event
+	 * @param EE_Transaction|null $transaction
+	 * @return void
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public static function set_event_subtotal_details(
+		EE_Line_Item $event_line_item,
+		EE_Event $event = null,
+		?EE_Transaction $transaction = null
+	) {
+		if ($event instanceof EE_Event) {
+			$event_line_item->set_code(self::get_event_code($event));
+			$event_line_item->set_name(self::get_event_name($event));
+			$event_line_item->set_desc(self::get_event_desc($event));
+			$event_line_item->set_OBJ_ID($event->ID());
+		}
+		self::set_TXN_ID($event_line_item, $transaction);
+	}
+
+
+	/**
+	 * Finds what taxes should apply, adds them as tax line items under the taxes sub-total,
+	 * and recalculates the taxes sub-total and the grand total. Resets the taxes, so
+	 * any old taxes are removed
+	 *
+	 * @param EE_Line_Item $total_line_item of type EEM_Line_Item::type_total
+	 * @param bool         $update_txn_status
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 * @throws RuntimeException
+	 */
+	public static function apply_taxes(EE_Line_Item $total_line_item, bool $update_txn_status = false): bool
+	{
+		$total_line_item       = EEH_Line_Item::find_transaction_grand_total_for_line_item($total_line_item);
+		$taxes_line_item       = self::get_taxes_subtotal($total_line_item);
+		$existing_global_taxes = $taxes_line_item->tax_descendants();
+		$updates               = false;
+		// loop thru taxes
+		$global_taxes = EEH_Line_Item::getGlobalTaxes();
+		foreach ($global_taxes as $order => $taxes) {
+			foreach ($taxes as $tax) {
+				if ($tax instanceof EE_Price) {
+					$found = false;
+					// check if this is already an existing tax
+					foreach ($existing_global_taxes as $existing_global_tax) {
+						if ($tax->ID() === $existing_global_tax->OBJ_ID()) {
+							// maybe update the tax rate in case it has changed
+							if ($existing_global_tax->percent() !== $tax->amount()) {
+								$existing_global_tax->set_percent($tax->amount());
+								$existing_global_tax->save();
+								$updates = true;
+							}
+							$found = true;
+							break;
+						}
+					}
+					if (! $found) {
+						// add a new line item for this global tax
+						$tax_line_item = apply_filters(
+							'FHEE__EEH_Line_Item__apply_taxes__tax_line_item',
+							EE_Line_Item::new_instance(
+								[
+									'LIN_name'       => $tax->name(),
+									'LIN_desc'       => $tax->desc(),
+									'LIN_percent'    => $tax->amount(),
+									'LIN_is_taxable' => false,
+									'LIN_order'      => $order,
+									'LIN_total'      => 0,
+									'LIN_type'       => EEM_Line_Item::type_tax,
+									'OBJ_type'       => EEM_Line_Item::OBJ_TYPE_PRICE,
+									'OBJ_ID'         => $tax->ID(),
+								]
+							)
+						);
+						$updates       = $taxes_line_item->add_child_line_item($tax_line_item) ? true : $updates;
+					}
+				}
+			}
+		}
+		// only recalculate totals if something changed
+		if ($updates || $update_txn_status) {
+			$total_line_item->recalculate_total_including_taxes($update_txn_status);
+			return true;
+		}
+		return false;
+	}
+
+
+	/**
+	 * Ensures that taxes have been applied to the order, if not applies them.
+	 * Returns the total amount of tax
+	 *
+	 * @param EE_Line_Item|null $total_line_item of type EEM_Line_Item::type_total
+	 * @return float
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public static function ensure_taxes_applied(?EE_Line_Item $total_line_item): float
+	{
+		$taxes_subtotal = self::get_taxes_subtotal($total_line_item);
+		if (! $taxes_subtotal->children()) {
+			self::apply_taxes($total_line_item);
+		}
+		return $taxes_subtotal->total();
+	}
+
+
+	/**
+	 * Deletes ALL children of the passed line item
+	 *
+	 * @param EE_Line_Item $parent_line_item
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public static function delete_all_child_items(EE_Line_Item $parent_line_item)
+	{
+		$deleted = 0;
+		foreach ($parent_line_item->children() as $child_line_item) {
+			if ($child_line_item instanceof EE_Line_Item) {
+				$deleted += EEH_Line_Item::delete_all_child_items($child_line_item);
+				if ($child_line_item->ID()) {
+					$child_line_item->delete();
+					unset($child_line_item);
+				} else {
+					$parent_line_item->delete_child_line_item($child_line_item->code());
+				}
+				$deleted++;
+			}
+		}
+		return $deleted;
+	}
+
+
+	/**
+	 * Deletes the line items as indicated by the line item code(s) provided,
+	 * regardless of where they're found in the line item tree. Automatically
+	 * re-calculates the line item totals and updates the related transaction. But
+	 * DOES NOT automatically upgrade the transaction's registrations' final prices (which
+	 * should probably change because of this).
+	 * You should call EE_Registration_Processor::calculate_reg_final_prices_per_line_item()
+	 * after using this, to keep the registration final prices in-sync with the transaction's total.
+	 *
+	 * @param EE_Line_Item      $total_line_item of type EEM_Line_Item::type_total
+	 * @param array|bool|string $line_item_codes
+	 * @return int number of items successfully removed
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function delete_items(EE_Line_Item $total_line_item, $line_item_codes = false)
+	{
+		if ($total_line_item->type() !== EEM_Line_Item::type_total) {
+			EE_Error::doing_it_wrong(
+				'EEH_Line_Item::delete_items',
+				esc_html__(
+					'This static method should only be called with a TOTAL line item, otherwise we won\'t recalculate the totals correctly',
+					'event_espresso'
+				),
+				'4.6.18'
+			);
+		}
+
+		// check if only a single line_item_id was passed
+		if (! empty($line_item_codes) && ! is_array($line_item_codes)) {
+			// place single line_item_id in an array to appear as multiple line_item_ids
+			$line_item_codes = [$line_item_codes];
+		}
+		$removals = 0;
+		// cycle thru line_item_ids
+		foreach ($line_item_codes as $line_item_id) {
+			$removals += $total_line_item->delete_child_line_item($line_item_id);
+		}
+
+		if ($removals > 0) {
+			$total_line_item->recalculate_taxes_and_tax_total();
+			return $removals;
+		} else {
+			return false;
+		}
+	}
+
+
+	/**
+	 * Overwrites the previous tax by clearing out the old taxes, and creates a new
+	 * tax and updates the total line item accordingly
+	 *
+	 * @param EE_Line_Item $total_line_item
+	 * @param float        $amount
+	 * @param string       $name
+	 * @param string       $description
+	 * @param string       $code
+	 * @param boolean      $add_to_existing_line_item
+	 *                          if true, and a duplicate line item with the same code is found,
+	 *                          $amount will be added onto it; otherwise will simply set the taxes to match $amount
+	 * @return EE_Line_Item the new tax line item created
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public static function set_total_tax_to(
+		EE_Line_Item $total_line_item,
+		float $amount,
+		string $name = '',
+		string $description = '',
+		string $code = '',
+		bool $add_to_existing_line_item = false
+	): EE_Line_Item {
+		$tax_subtotal  = self::get_taxes_subtotal($total_line_item);
+		$taxable_total = $total_line_item->taxable_total();
+
+		if ($add_to_existing_line_item) {
+			$new_tax = $tax_subtotal->get_child_line_item($code);
+			EEM_Line_Item::instance()->delete(
+				[['LIN_code' => ['!=', $code], 'LIN_parent' => $tax_subtotal->ID()]]
+			);
+		} else {
+			$new_tax = null;
+			$tax_subtotal->delete_children_line_items();
+		}
+		if ($new_tax) {
+			$new_tax->set_total($new_tax->total() + $amount);
+			$new_tax->set_percent($taxable_total ? $new_tax->total() / $taxable_total * 100 : 0);
+		} else {
+			// no existing tax item. Create it
+			$new_tax = EE_Line_Item::new_instance(
+				[
+					'TXN_ID'      => $total_line_item->TXN_ID(),
+					'LIN_name'    => $name ?: esc_html__('Tax', 'event_espresso'),
+					'LIN_desc'    => $description ?: '',
+					'LIN_percent' => $taxable_total ? ($amount / $taxable_total * 100) : 0,
+					'LIN_total'   => $amount,
+					'LIN_parent'  => $tax_subtotal->ID(),
+					'LIN_type'    => EEM_Line_Item::type_tax,
+					'LIN_code'    => $code,
+				]
+			);
+		}
+
+		$new_tax = apply_filters(
+			'FHEE__EEH_Line_Item__set_total_tax_to__new_tax_subtotal',
+			$new_tax,
+			$total_line_item
+		);
+		$new_tax->save();
+		$tax_subtotal->set_total($new_tax->total());
+		$tax_subtotal->save();
+		$total_line_item->recalculate_total_including_taxes();
+		return $new_tax;
+	}
+
+
+	/**
+	 * Makes all the line items which are children of $line_item taxable (or not).
+	 * Does NOT save the line items
+	 *
+	 * @param EE_Line_Item $line_item
+	 * @param boolean      $taxable
+	 * @param string|null  $code_substring_for_whitelist if this string is part of the line item's code
+	 *                                                   it will be whitelisted (ie, except from becoming taxable)
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function set_line_items_taxable(
+		EE_Line_Item $line_item,
+		bool $taxable = true,
+		?string $code_substring_for_whitelist = null
+	) {
+		$whitelisted = false;
+		if ($code_substring_for_whitelist !== null) {
+			$whitelisted = strpos($line_item->code(), $code_substring_for_whitelist) !== false;
+		}
+		if (! $whitelisted && $line_item->is_line_item()) {
+			$line_item->set_is_taxable($taxable);
+		}
+		foreach ($line_item->children() as $child_line_item) {
+			EEH_Line_Item::set_line_items_taxable(
+				$child_line_item,
+				$taxable,
+				$code_substring_for_whitelist
+			);
+		}
+	}
+
+
+	/**
+	 * Gets all descendants that are event subtotals
+	 *
+	 * @param EE_Line_Item $parent_line_item - the line item to find descendants of
+	 * @return EE_Line_Item[]
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 * @uses  EEH_Line_Item::get_subtotals_of_object_type()
+	 */
+	public static function get_event_subtotals(EE_Line_Item $parent_line_item): array
+	{
+		return self::get_subtotals_of_object_type($parent_line_item, EEM_Line_Item::OBJ_TYPE_EVENT);
+	}
+
+
+	/**
+	 * Gets all descendants subtotals that match the supplied object type
+	 *
+	 * @param EE_Line_Item $parent_line_item - the line item to find descendants of
+	 * @param string       $obj_type
+	 * @return EE_Line_Item[]
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 * @uses  EEH_Line_Item::_get_descendants_by_type_and_object_type()
+	 */
+	public static function get_subtotals_of_object_type(EE_Line_Item $parent_line_item, string $obj_type = ''): array
+	{
+		return self::_get_descendants_by_type_and_object_type(
+			$parent_line_item,
+			EEM_Line_Item::type_sub_total,
+			$obj_type
+		);
+	}
+
+
+	/**
+	 * Gets all descendants that are tickets
+	 *
+	 * @param EE_Line_Item $parent_line_item - the line item to find descendants of
+	 * @return EE_Line_Item[]
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 * @uses  EEH_Line_Item::get_line_items_of_object_type()
+	 */
+	public static function get_ticket_line_items(EE_Line_Item $parent_line_item): array
+	{
+		return self::get_line_items_of_object_type(
+			$parent_line_item,
+			EEM_Line_Item::OBJ_TYPE_TICKET
+		);
+	}
+
+
+	/**
+	 * Gets all descendants subtotals that match the supplied object type
+	 *
+	 * @param EE_Line_Item $parent_line_item - the line item to find descendants of
+	 * @param string       $obj_type
+	 * @return EE_Line_Item[]
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 * @uses  EEH_Line_Item::_get_descendants_by_type_and_object_type()
+	 */
+	public static function get_line_items_of_object_type(EE_Line_Item $parent_line_item, string $obj_type = ''): array
+	{
+		return self::_get_descendants_by_type_and_object_type(
+			$parent_line_item,
+			EEM_Line_Item::type_line_item,
+			$obj_type
+		);
+	}
+
+
+	/**
+	 * Gets all the descendants (ie, children or children of children etc) that are of the type 'tax'
+	 *
+	 * @param EE_Line_Item $parent_line_item - the line item to find descendants of
+	 * @return EE_Line_Item[]
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 * @uses  EEH_Line_Item::get_descendants_of_type()
+	 */
+	public static function get_tax_descendants(EE_Line_Item $parent_line_item): array
+	{
+		return EEH_Line_Item::get_descendants_of_type(
+			$parent_line_item,
+			EEM_Line_Item::type_tax
+		);
+	}
+
+
+	/**
+	 * Gets all the real items purchased which are children of this item
+	 *
+	 * @param EE_Line_Item $parent_line_item - the line item to find descendants of
+	 * @return EE_Line_Item[]
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 * @uses  EEH_Line_Item::get_descendants_of_type()
+	 */
+	public static function get_line_item_descendants(EE_Line_Item $parent_line_item): array
+	{
+		return EEH_Line_Item::get_descendants_of_type(
+			$parent_line_item,
+			EEM_Line_Item::type_line_item
+		);
+	}
+
+
+	/**
+	 * Gets all descendants of supplied line item that match the supplied line item type
+	 *
+	 * @param EE_Line_Item $parent_line_item - the line item to find descendants of
+	 * @param string       $line_item_type   one of the EEM_Line_Item constants
+	 * @return EE_Line_Item[]
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 * @uses  EEH_Line_Item::_get_descendants_by_type_and_object_type()
+	 */
+	public static function get_descendants_of_type(EE_Line_Item $parent_line_item, string $line_item_type): array
+	{
+		return self::_get_descendants_by_type_and_object_type(
+			$parent_line_item,
+			$line_item_type
+		);
+	}
+
+
+	/**
+	 * Gets all descendants of supplied line item that match the supplied line item type and possibly the object type
+	 * as well
+	 *
+	 * @param EE_Line_Item $parent_line_item  - the line item to find descendants of
+	 * @param string       $line_item_type    one of the EEM_Line_Item constants
+	 * @param string|null  $obj_type          object model class name (minus prefix) or NULL to ignore object type when
+	 *                                        searching
+	 * @return EE_Line_Item[]
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	protected static function _get_descendants_by_type_and_object_type(
+		EE_Line_Item $parent_line_item,
+		string $line_item_type,
+		?string $obj_type = null
+	): array {
+		$objects = [];
+		foreach ($parent_line_item->children() as $child_line_item) {
+			if ($child_line_item instanceof EE_Line_Item) {
+				if (
+					$child_line_item->type() === $line_item_type
+					&& (
+						$child_line_item->OBJ_type() === $obj_type || $obj_type === null
+					)
+				) {
+					$objects[] = $child_line_item;
+				} else {
+					// go-through-all-its children looking for more matches
+					$objects = array_merge(
+						$objects,
+						self::_get_descendants_by_type_and_object_type(
+							$child_line_item,
+							$line_item_type,
+							$obj_type
+						)
+					);
+				}
+			}
+		}
+		return $objects;
+	}
+
+
+	/**
+	 * Gets all descendants subtotals that match the supplied object type
+	 *
+	 * @param EE_Line_Item $parent_line_item - the line item to find descendants of
+	 * @param string       $OBJ_type         object type (like Event)
+	 * @param array        $OBJ_IDs          array of OBJ_IDs
+	 * @return EE_Line_Item[]
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 * @uses  EEH_Line_Item::_get_descendants_by_type_and_object_type()
+	 */
+	public static function get_line_items_by_object_type_and_IDs(
+		EE_Line_Item $parent_line_item,
+		string $OBJ_type = '',
+		array $OBJ_IDs = []
+	): array {
+		return self::_get_descendants_by_object_type_and_object_ID(
+			$parent_line_item,
+			$OBJ_type,
+			$OBJ_IDs
+		);
+	}
+
+
+	/**
+	 * Gets all descendants of supplied line item that match the supplied line item type and possibly the object type
+	 * as well
+	 *
+	 * @param EE_Line_Item $parent_line_item - the line item to find descendants of
+	 * @param string       $OBJ_type         object type (like Event)
+	 * @param array        $OBJ_IDs          array of OBJ_IDs
+	 * @return EE_Line_Item[]
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	protected static function _get_descendants_by_object_type_and_object_ID(
+		EE_Line_Item $parent_line_item,
+		string $OBJ_type,
+		array $OBJ_IDs
+	): array {
+		$objects = [];
+		foreach ($parent_line_item->children() as $child_line_item) {
+			if ($child_line_item instanceof EE_Line_Item) {
+				if (
+					$child_line_item->OBJ_type() === $OBJ_type
+					&& in_array($child_line_item->OBJ_ID(), $OBJ_IDs)
+				) {
+					$objects[] = $child_line_item;
+				} else {
+					// go-through-all-its children looking for more matches
+					$objects = array_merge(
+						$objects,
+						self::_get_descendants_by_object_type_and_object_ID(
+							$child_line_item,
+							$OBJ_type,
+							$OBJ_IDs
+						)
+					);
+				}
+			}
+		}
+		return $objects;
+	}
+
+
+	/**
+	 * Uses a breadth-first-search in order to find the nearest descendant of
+	 * the specified type and returns it, else NULL
+	 *
+	 * @param EE_Line_Item $parent_line_item - the line item to find descendants of
+	 * @param string       $type             like one of the EEM_Line_Item::type_*
+	 * @return EE_Line_Item
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 * @uses  EEH_Line_Item::_get_nearest_descendant()
+	 */
+	public static function get_nearest_descendant_of_type(EE_Line_Item $parent_line_item, string $type): ?EE_Line_Item
+	{
+		return self::_get_nearest_descendant($parent_line_item, 'LIN_type', $type);
+	}
+
+
+	/**
+	 * Uses a breadth-first-search in order to find the nearest descendant
+	 * having the specified LIN_code and returns it, else NULL
+	 *
+	 * @param EE_Line_Item $parent_line_item - the line item to find descendants of
+	 * @param string       $code             any value used for LIN_code
+	 * @return EE_Line_Item
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 * @uses  EEH_Line_Item::_get_nearest_descendant()
+	 */
+	public static function get_nearest_descendant_having_code(
+		EE_Line_Item $parent_line_item,
+		string $code
+	): ?EE_Line_Item {
+		return self::_get_nearest_descendant($parent_line_item, 'LIN_code', $code);
+	}
+
+
+	/**
+	 * Uses a breadth-first-search in order to find the nearest descendant
+	 * having the specified LIN_code and returns it, else NULL
+	 *
+	 * @param EE_Line_Item $parent_line_item - the line item to find descendants of
+	 * @param string       $search_field     name of EE_Line_Item property
+	 * @param mixed        $value            any value stored in $search_field
+	 * @return EE_Line_Item
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	protected static function _get_nearest_descendant(
+		EE_Line_Item $parent_line_item,
+		string $search_field,
+		$value
+	): ?EE_Line_Item {
+		foreach ($parent_line_item->children() as $child) {
+			if ($child->get($search_field) == $value) {
+				return $child;
+			}
+		}
+		foreach ($parent_line_item->children() as $child) {
+			$descendant_found = self::_get_nearest_descendant(
+				$child,
+				$search_field,
+				$value
+			);
+			if ($descendant_found) {
+				return $descendant_found;
+			}
+		}
+		return null;
+	}
+
+
+	/**
+	 * if passed line item has a TXN ID, uses that to jump directly to the grand total line item for the transaction,
+	 * else recursively walks up the line item tree until a parent of type total is found,
+	 *
+	 * @param EE_Line_Item $line_item
+	 * @return EE_Line_Item
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function find_transaction_grand_total_for_line_item(EE_Line_Item $line_item): EE_Line_Item
+	{
+		if ($line_item->is_total()) {
+			return $line_item;
+		}
+		if ($line_item->TXN_ID()) {
+			$total_line_item = $line_item->transaction()->total_line_item(false);
+			if ($total_line_item instanceof EE_Line_Item) {
+				return $total_line_item;
+			}
+		} else {
+			$line_item_parent = $line_item->parent();
+			if ($line_item_parent instanceof EE_Line_Item) {
+				if ($line_item_parent->is_total()) {
+					return $line_item_parent;
+				}
+				return EEH_Line_Item::find_transaction_grand_total_for_line_item($line_item_parent);
+			}
+		}
+		throw new EE_Error(
+			sprintf(
+				esc_html__(
+					'A valid grand total for line item %1$d was not found.',
+					'event_espresso'
+				),
+				$line_item->ID()
+			)
+		);
+	}
+
+
+	/**
+	 * Prints out a representation of the line item tree
+	 *
+	 * @param EE_Line_Item $line_item
+	 * @param int          $indentation
+	 * @param bool         $top_level
+	 * @return void
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function visualize(EE_Line_Item $line_item, int $indentation = 0, bool $top_level = true)
+	{
+		if (! defined('WP_DEBUG') || ! WP_DEBUG) {
+			return;
+		}
+		$testing  = defined('EE_TESTS_DIR');
+		$new_line = $testing ? "\n" : '<br />';
+		if ($top_level && ! $testing) {
+			echo '<div style="position: relative; z-index: 9999; margin: 2rem;">';
+			echo '<pre style="padding: 2rem 3rem; color: #00CCFF; background: #363636;">';
+		}
+		if ($top_level || $indentation) {
+			echo $new_line;
+		}
+		echo str_repeat('. ', $indentation);
+		$breakdown = '';
+		if ($line_item->is_line_item() || $line_item->is_sub_line_item() || $line_item->isSubTax()) {
+			if ($line_item->is_percent()) {
+				$breakdown = "{$line_item->percent()}%";
+			} else {
+				$breakdown = "\${$line_item->unit_price()} x {$line_item->quantity()}";
+			}
+		}
+		echo wp_kses($line_item->name(), AllowedTags::getAllowedTags());
+		echo " [ ID:{$line_item->ID()} | qty:{$line_item->quantity()} ] {$line_item->type()}";
+		echo " : \${$line_item->total()} : \${$line_item->pretaxTotal()}";
+		if ($breakdown) {
+			echo " ( $breakdown )";
+		}
+		if ($line_item->is_taxable()) {
+			echo '  * taxable';
+		}
+		if ($line_item->children()) {
+			foreach ($line_item->children() as $child) {
+				self::visualize($child, $indentation + 1, false);
+			}
+		}
+		if ($top_level && ! $testing) {
+			echo $new_line;
+			echo '</pre></div>';
+		}
+	}
+
+
+	/**
+	 * Calculates the registration's final price, taking into account that they
+	 * need to not only help pay for their OWN ticket, but also any transaction-wide surcharges and taxes,
+	 * and receive a portion of any transaction-wide discounts.
+	 * eg1, if I buy a $1 ticket and brent buys a $9 ticket, and we receive a $5 discount
+	 * then I'll get 1/10 of that $5 discount, which is $0.50, and brent will get
+	 * 9/10ths of that $5 discount, which is $4.50. So my final price should be $0.50
+	 * and brent's final price should be $5.50.
+	 * In order to do this, we basically need to traverse the line item tree calculating
+	 * the running totals (just as if we were recalculating the total), but when we identify
+	 * regular line items, we need to keep track of their share of the grand total.
+	 * Also, we need to keep track of the TAXABLE total for each ticket purchase, so
+	 * we can know how to apply taxes to it. (Note: "taxable total" does not equal the "pretax total"
+	 * when there are non-taxable items; otherwise they would be the same)
+	 *
+	 * @param EE_Line_Item $line_item
+	 * @param array        $billable_ticket_quantities          array of EE_Ticket IDs and their corresponding quantity
+	 *                                                          that can be included in price calculations at this
+	 *                                                          moment
+	 * @return array        keys are line items for tickets IDs and values are their share of the running total,
+	 *                                                          plus the key 'total', and 'taxable' which also has keys
+	 *                                                          of all the ticket IDs. Eg array(
+	 *                                                          12 => 4.3
+	 *                                                          23 => 8.0
+	 *                                                          'total' => 16.6,
+	 *                                                          'taxable' => array(
+	 *                                                          12 => 10,
+	 *                                                          23 => 4
+	 *                                                          ).
+	 *                                                          So to find which registrations have which final price,
+	 *                                                          we need to find which line item is theirs, which can be
+	 *                                                          done with
+	 *                                                          `EEM_Line_Item::instance()->get_line_item_for_registration(
+	 *                                                          $registration );`
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public static function calculate_reg_final_prices_per_line_item(
+		EE_Line_Item $line_item,
+		array $billable_ticket_quantities = []
+	): array {
+		$running_totals = [
+			'total'   => 0,
+			'taxable' => ['total' => 0],
+		];
+		foreach ($line_item->children() as $child_line_item) {
+			switch ($child_line_item->type()) {
+				case EEM_Line_Item::type_sub_total:
+					$running_totals_from_subtotal = EEH_Line_Item::calculate_reg_final_prices_per_line_item(
+						$child_line_item,
+						$billable_ticket_quantities
+					);
+					// combine arrays but preserve numeric keys
+					$running_totals                     = array_replace_recursive(
+						$running_totals_from_subtotal,
+						$running_totals
+					);
+					$running_totals['total']            += $running_totals_from_subtotal['total'];
+					$running_totals['taxable']['total'] += $running_totals_from_subtotal['taxable']['total'];
+					break;
+
+				case EEM_Line_Item::type_tax_sub_total:
+					// find how much the taxes percentage is
+					if ($child_line_item->percent() !== 0.0) {
+						$tax_percent_decimal = $child_line_item->percent() / 100;
+					} else {
+						$tax_percent_decimal = EE_Taxes::get_total_taxes_percentage() / 100;
+					}
+					// and apply to all the taxable totals, and add to the pretax totals
+					foreach ($running_totals as $line_item_id => $this_running_total) {
+						// "total" and "taxable" array key is an exception
+						if ($line_item_id === 'taxable') {
+							continue;
+						}
+						$taxable_total                   = $running_totals['taxable'][ $line_item_id ];
+						$running_totals[ $line_item_id ] += ($taxable_total * $tax_percent_decimal);
+					}
+					break;
+
+				case EEM_Line_Item::type_line_item:
+					// ticket line items or ????
+					if ($child_line_item->OBJ_type() === EEM_Line_Item::OBJ_TYPE_TICKET) {
+						// kk it's a ticket
+						if (isset($running_totals[ $child_line_item->ID() ])) {
+							// huh? that shouldn't happen.
+							$running_totals['total'] += $child_line_item->total();
+						} else {
+							// it's not in our running totals yet. great.
+							if ($child_line_item->is_taxable()) {
+								$taxable_amount = $child_line_item->unit_price();
+							} else {
+								$taxable_amount = 0;
+							}
+							// are we only calculating totals for some tickets?
+							if (isset($billable_ticket_quantities[ $child_line_item->OBJ_ID() ])) {
+								$quantity = $billable_ticket_quantities[ $child_line_item->OBJ_ID() ];
+
+								$running_totals[ $child_line_item->ID() ]            = $quantity
+									? $child_line_item->unit_price()
+									: 0;
+								$running_totals['taxable'][ $child_line_item->ID() ] = $quantity
+									? $taxable_amount
+									: 0;
+							} else {
+								$quantity                                            = $child_line_item->quantity();
+								$running_totals[ $child_line_item->ID() ]            = $child_line_item->unit_price();
+								$running_totals['taxable'][ $child_line_item->ID() ] = $taxable_amount;
+							}
+							$running_totals['taxable']['total'] += $taxable_amount * $quantity;
+							$running_totals['total']            += $child_line_item->unit_price() * $quantity;
+						}
+					} else {
+						// it's some other type of item added to the cart
+						// it should affect the running totals
+						// basically we want to convert it into a PERCENT modifier. Because
+						// more clearly affect all registration's final price equally
+						$line_items_percent_of_running_total = $running_totals['total'] > 0
+							? ($child_line_item->total() / $running_totals['total']) + 1
+							: 1;
+						foreach ($running_totals as $line_item_id => $this_running_total) {
+							// the "taxable" array key is an exception
+							if ($line_item_id === 'taxable') {
+								continue;
+							}
+							// update the running totals
+							// yes this actually even works for the running grand total!
+							$running_totals[ $line_item_id ] =
+								$line_items_percent_of_running_total * $this_running_total;
+
+							if ($child_line_item->is_taxable()) {
+								$running_totals['taxable'][ $line_item_id ] =
+									$line_items_percent_of_running_total * $running_totals['taxable'][ $line_item_id ];
+							}
+						}
+					}
+					break;
+			}
+		}
+		return $running_totals;
+	}
+
+
+	/**
+	 * @param EE_Line_Item $total_line_item
+	 * @param EE_Line_Item $ticket_line_item
+	 * @return float | null
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws OutOfRangeException
+	 * @throws ReflectionException
+	 */
+	public static function calculate_final_price_for_ticket_line_item(
+		EE_Line_Item $total_line_item,
+		EE_Line_Item $ticket_line_item
+	): ?float {
+		static $final_prices_per_ticket_line_item = [];
+		if (
+			empty($final_prices_per_ticket_line_item)
+			|| empty($final_prices_per_ticket_line_item[ $total_line_item->ID() ])
+		) {
+			$final_prices_per_ticket_line_item[ $total_line_item->ID() ] =
+				EEH_Line_Item::calculate_reg_final_prices_per_line_item(
+					$total_line_item
+				);
+		}
+		// ok now find this new registration's final price
+		if (isset($final_prices_per_ticket_line_item[ $total_line_item->ID() ][ $ticket_line_item->ID() ])) {
+			return $final_prices_per_ticket_line_item[ $total_line_item->ID() ][ $ticket_line_item->ID() ];
+		}
+		$message = sprintf(
+			esc_html__(
+				'The final price for the ticket line item (ID:%1$d) on the total line item (ID:%2$d) could not be calculated.',
+				'event_espresso'
+			),
+			$ticket_line_item->ID(),
+			$total_line_item->ID()
+		);
+		if (WP_DEBUG) {
+			$message .= '<br>' . print_r($final_prices_per_ticket_line_item, true);
+			throw new OutOfRangeException($message);
+		}
+		EE_Log::instance()->log(__CLASS__, __FUNCTION__, $message);
+		return null;
+	}
+
+
+	/**
+	 * Creates a duplicate of the line item tree, except only includes billable items
+	 * and the portion of line items attributed to billable things
+	 *
+	 * @param EE_Line_Item      $line_item
+	 * @param EE_Registration[] $registrations
+	 * @return EE_Line_Item
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public static function billable_line_item_tree(EE_Line_Item $line_item, array $registrations): EE_Line_Item
+	{
+		$copy_li = EEH_Line_Item::billable_line_item($line_item, $registrations);
+		foreach ($line_item->children() as $child_li) {
+			$copy_li->add_child_line_item(
+				EEH_Line_Item::billable_line_item_tree($child_li, $registrations)
+			);
+		}
+		// if this is the grand total line item, make sure the totals all add up
+		// (we could have duplicated this logic AS we copied the line items, but
+		// it seems DRYer this way)
+		if ($copy_li->type() === EEM_Line_Item::type_total) {
+			$copy_li->recalculate_total_including_taxes();
+		}
+		return $copy_li;
+	}
+
+
+	/**
+	 * Creates a new, unsaved line item from $line_item that factors in the
+	 * number of billable registrations on $registrations.
+	 *
+	 * @param EE_Line_Item      $line_item
+	 * @param EE_Registration[] $registrations
+	 * @return EE_Line_Item
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public static function billable_line_item(EE_Line_Item $line_item, array $registrations): EE_Line_Item
+	{
+		$new_li_fields = $line_item->model_field_array();
+		if (
+			$line_item->type() === EEM_Line_Item::type_line_item &&
+			$line_item->OBJ_type() === EEM_Line_Item::OBJ_TYPE_TICKET
+		) {
+			$count = 0;
+			foreach ($registrations as $registration) {
+				if (
+					$line_item->OBJ_ID() === $registration->ticket_ID() &&
+					in_array(
+						$registration->status_ID(),
+						EEM_Registration::reg_statuses_that_allow_payment(),
+						true
+					)
+				) {
+					$count++;
+				}
+			}
+			$new_li_fields['LIN_quantity'] = $count;
+		}
+		// don't set the total. We'll leave that up to the code that calculates it
+		unset($new_li_fields['LIN_ID'], $new_li_fields['LIN_parent'], $new_li_fields['LIN_total']);
+		return EE_Line_Item::new_instance($new_li_fields);
+	}
+
+
+	/**
+	 * Returns a modified line item tree where all the subtotals which have a total of 0
+	 * are removed, and line items with a quantity of 0
+	 *
+	 * @param EE_Line_Item $line_item |null
+	 * @return EE_Line_Item|null
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public static function non_empty_line_items(EE_Line_Item $line_item): ?EE_Line_Item
+	{
+		$copied_li = EEH_Line_Item::non_empty_line_item($line_item);
+		if ($copied_li === null) {
+			return null;
+		}
+		// if this is an event subtotal, we want to only include it if it
+		// has a non-zero total and at least one ticket line item child
+		$ticket_children = 0;
+		foreach ($line_item->children() as $child_li) {
+			$child_li_copy = EEH_Line_Item::non_empty_line_items($child_li);
+			if ($child_li_copy !== null) {
+				$copied_li->add_child_line_item($child_li_copy);
+				if (
+					$child_li_copy->type() === EEM_Line_Item::type_line_item &&
+					$child_li_copy->OBJ_type() === EEM_Line_Item::OBJ_TYPE_TICKET
+				) {
+					$ticket_children++;
+				}
+			}
+		}
+		// if this is an event subtotal with NO ticket children
+		// we basically want to ignore it
+		if (
+			$ticket_children === 0
+			&& $line_item->type() === EEM_Line_Item::type_sub_total
+			&& $line_item->OBJ_type() === EEM_Line_Item::OBJ_TYPE_EVENT
+			&& $line_item->total() === 0.0
+		) {
+			return null;
+		}
+		return $copied_li;
+	}
+
+
+	/**
+	 * Creates a new, unsaved line item, but if it's a ticket line item
+	 * with a total of 0, or a subtotal of 0, returns null instead
+	 *
+	 * @param EE_Line_Item $line_item
+	 * @return EE_Line_Item
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 */
+	public static function non_empty_line_item(EE_Line_Item $line_item): ?EE_Line_Item
+	{
+		if (
+			$line_item->type() === EEM_Line_Item::type_line_item
+			&& $line_item->OBJ_type() === EEM_Line_Item::OBJ_TYPE_TICKET
+			&& $line_item->quantity() === 0
+		) {
+			return null;
+		}
+		$new_li_fields = $line_item->model_field_array();
+		// don't set the total. We'll leave that up to the code that calculates it
+		unset($new_li_fields['LIN_ID'], $new_li_fields['LIN_parent']);
+		return EE_Line_Item::new_instance($new_li_fields);
+	}
+
+
+	/**
+	 * Cycles through all the ticket line items for the supplied total line item
+	 * and ensures that the line item's "is_taxable" field matches that of its corresponding ticket
+	 *
+	 * @param EE_Line_Item $total_line_item
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 * @since 4.9.79.p
+	 */
+	public static function resetIsTaxableForTickets(EE_Line_Item $total_line_item)
+	{
+		$ticket_line_items = self::get_ticket_line_items($total_line_item);
+		foreach ($ticket_line_items as $ticket_line_item) {
+			if (
+				$ticket_line_item instanceof EE_Line_Item
+				&& $ticket_line_item->OBJ_type() === EEM_Line_Item::OBJ_TYPE_TICKET
+			) {
+				$ticket = $ticket_line_item->ticket();
+				if ($ticket instanceof EE_Ticket && $ticket->taxable() !== $ticket_line_item->is_taxable()) {
+					$ticket_line_item->set_is_taxable($ticket->taxable());
+					$ticket_line_item->save();
+				}
+			}
+		}
+	}
+
+
+	/**
+	 * @return EE_Line_Item[]
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 * @since   5.0.0.p
+	 */
+	private static function getGlobalTaxes(): array
+	{
+		if (EEH_Line_Item::$global_taxes === null) {
+			/** @type EEM_Price $EEM_Price */
+			$EEM_Price = EE_Registry::instance()->load_model('Price');
+			// get array of taxes via Price Model
+			EEH_Line_Item::$global_taxes = $EEM_Price->get_all_prices_that_are_taxes();
+			ksort(EEH_Line_Item::$global_taxes);
+		}
+		return EEH_Line_Item::$global_taxes;
+	}
+
+
+
+	/**************************************** @DEPRECATED METHODS *************************************** */
+	/**
+	 * @param EE_Line_Item $total_line_item
+	 * @return EE_Line_Item
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 * @deprecated
+	 */
+	public static function get_items_subtotal(EE_Line_Item $total_line_item): EE_Line_Item
+	{
+		EE_Error::doing_it_wrong(
+			'EEH_Line_Item::get_items_subtotal()',
+			sprintf(
+				esc_html__('Method replaced with %1$s', 'event_espresso'),
+				'EEH_Line_Item::get_pre_tax_subtotal()'
+			),
+			'4.6.0'
+		);
+		return self::get_pre_tax_subtotal($total_line_item);
+	}
+
+
+	/**
+	 * @param EE_Transaction|null $transaction
+	 * @return EE_Line_Item
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 * @deprecated
+	 */
+	public static function create_default_total_line_item(?EE_Transaction $transaction = null): EE_Line_Item
+	{
+		EE_Error::doing_it_wrong(
+			'EEH_Line_Item::create_default_total_line_item()',
+			sprintf(
+				esc_html__('Method replaced with %1$s', 'event_espresso'),
+				'EEH_Line_Item::create_total_line_item()'
+			),
+			'4.6.0'
+		);
+		return self::create_total_line_item($transaction);
+	}
+
+
+	/**
+	 * @param EE_Line_Item        $total_line_item
+	 * @param EE_Transaction|null $transaction
+	 * @return EE_Line_Item
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 * @deprecated
+	 */
+	public static function create_default_tickets_subtotal(
+		EE_Line_Item $total_line_item,
+		?EE_Transaction $transaction = null
+	): EE_Line_Item {
+		EE_Error::doing_it_wrong(
+			'EEH_Line_Item::create_default_tickets_subtotal()',
+			sprintf(
+				esc_html__('Method replaced with %1$s', 'event_espresso'),
+				'EEH_Line_Item::create_pre_tax_subtotal()'
+			),
+			'4.6.0'
+		);
+		return self::create_pre_tax_subtotal($total_line_item, $transaction);
+	}
+
+
+	/**
+	 * @param EE_Line_Item        $total_line_item
+	 * @param EE_Transaction|null $transaction
+	 * @return EE_Line_Item
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 * @deprecated
+	 */
+	public static function create_default_taxes_subtotal(
+		EE_Line_Item $total_line_item,
+		?EE_Transaction $transaction = null
+	): EE_Line_Item {
+		EE_Error::doing_it_wrong(
+			'EEH_Line_Item::create_default_taxes_subtotal()',
+			sprintf(
+				esc_html__('Method replaced with %1$s', 'event_espresso'),
+				'EEH_Line_Item::create_taxes_subtotal()'
+			),
+			'4.6.0'
+		);
+		return self::create_taxes_subtotal($total_line_item, $transaction);
+	}
+
+
+	/**
+	 * @param EE_Line_Item        $total_line_item
+	 * @param EE_Transaction|null $transaction
+	 * @return EE_Line_Item
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 * @throws ReflectionException
+	 * @deprecated
+	 */
+	public static function create_default_event_subtotal(
+		EE_Line_Item $total_line_item,
+		?EE_Transaction $transaction = null
+	): EE_Line_Item {
+		EE_Error::doing_it_wrong(
+			'EEH_Line_Item::create_default_event_subtotal()',
+			sprintf(
+				esc_html__('Method replaced with %1$s', 'event_espresso'),
+				'EEH_Line_Item::create_event_subtotal()'
+			),
+			'4.6.0'
+		);
+		return self::create_event_subtotal($total_line_item, $transaction);
+	}
 }

Spacing +46 added lines, -46 removed lines

@@ -24,7 +24,7 @@ 
     /**
      * @var EE_Line_Item[]|null
      */
-    private static ?array $global_taxes = null;
+    private static ? array $global_taxes = null;
 
 
     /**
@@ -73,12 +73,12 @@ 
                 'LIN_code'       => $code,
             ]
         );
-        $line_item      = apply_filters(
+        $line_item = apply_filters(
             'FHEE__EEH_Line_Item__add_unrelated_item__line_item',
             $line_item,
             $parent_line_item
         );
-        $added          = self::add_item($parent_line_item, $line_item, $recalculate_totals);
+        $added = self::add_item($parent_line_item, $line_item, $recalculate_totals);
         return $return_item ? $line_item : $added;
     }
 
@@ -131,7 +131,7 @@ 
             'FHEE__EEH_Line_Item__add_percentage_based_item__line_item',
             $line_item
         );
-        $added     = $parent_line_item->add_child_line_item($line_item, false);
+        $added = $parent_line_item->add_child_line_item($line_item, false);
         return $return_item ? $line_item : $added;
     }
 
@@ -160,7 +160,7 @@ 
         int $qty = 1,
         bool $recalculate_totals = true
     ): ?EE_Line_Item {
-        if (! $total_line_item instanceof EE_Line_Item || ! $total_line_item->is_total()) {
+        if ( ! $total_line_item instanceof EE_Line_Item || ! $total_line_item->is_total()) {
             throw new EE_Error(
                 sprintf(
                     esc_html__(
@@ -175,7 +175,7 @@ 
         // either increment the qty for an existing ticket
         $line_item = self::increment_ticket_qty_if_already_in_cart($total_line_item, $ticket, $qty);
         // or add a new one
-        if (! $line_item instanceof EE_Line_Item) {
+        if ( ! $line_item instanceof EE_Line_Item) {
             $line_item = self::create_ticket_line_item($total_line_item, $ticket, $qty);
         }
         if ($recalculate_totals) {
@@ -239,7 +239,7 @@ 
      */
     public static function increment_quantity(EE_Line_Item $line_item, int $qty = 1)
     {
-        if (! $line_item->is_percent()) {
+        if ( ! $line_item->is_percent()) {
             $qty += $line_item->quantity();
             $line_item->set_quantity($qty);
             $line_item->set_total($line_item->unit_price() * $qty);
@@ -268,7 +268,7 @@ 
      */
     public static function decrement_quantity(EE_Line_Item $line_item, int $qty = 1)
     {
-        if (! $line_item->is_percent()) {
+        if ( ! $line_item->is_percent()) {
             $qty = $line_item->quantity() - $qty;
             $qty = max($qty, 0);
             $line_item->set_quantity($qty);
@@ -297,7 +297,7 @@ 
      */
     public static function update_quantity(EE_Line_Item $line_item, int $new_quantity)
     {
-        if (! $line_item->is_percent()) {
+        if ( ! $line_item->is_percent()) {
             $line_item->set_quantity($new_quantity);
             $line_item->set_total($line_item->unit_price() * $new_quantity);
             $line_item->save();
@@ -342,7 +342,7 @@ 
         $line_item = EE_Line_Item::new_instance(
             [
                 'LIN_name'       => $ticket->name(),
-                'LIN_desc'       => $ticket->description() !== '' ? $ticket->description() . ' ' . $event : $event,
+                'LIN_desc'       => $ticket->description() !== '' ? $ticket->description().' '.$event : $event,
                 'LIN_unit_price' => $ticket->price(),
                 'LIN_quantity'   => $qty,
                 'LIN_is_taxable' => empty($taxes) && $ticket->taxable(),
@@ -357,7 +357,7 @@ 
             'FHEE__EEH_Line_Item__create_ticket_line_item__line_item',
             $line_item
         );
-        if (! $line_item instanceof EE_Line_Item) {
+        if ( ! $line_item instanceof EE_Line_Item) {
             throw new DomainException(
                 esc_html__('Invalid EE_Line_Item received.', 'event_espresso')
             );
@@ -396,7 +396,7 @@ 
                 ? $price_type->name()
                 : $price_desc;
 
-            $sub_line_item         = EE_Line_Item::new_instance(
+            $sub_line_item = EE_Line_Item::new_instance(
                 [
                     'LIN_name'       => $price->name(),
                     'LIN_desc'       => $price_desc,
@@ -413,7 +413,7 @@ 
                     'OBJ_type'       => EEM_Line_Item::OBJ_TYPE_PRICE,
                 ]
             );
-            $sub_line_item         = apply_filters(
+            $sub_line_item = apply_filters(
                 'FHEE__EEH_Line_Item__create_ticket_line_item__sub_line_item',
                 $sub_line_item
             );
@@ -530,7 +530,7 @@ 
                             'event_espresso'
                         ),
                         $ticket_line_item->name(),
-                        current_time(get_option('date_format') . ' ' . get_option('time_format'))
+                        current_time(get_option('date_format').' '.get_option('time_format'))
                     ),
                     'LIN_unit_price' => 0, // $ticket_line_item->unit_price()
                     'LIN_quantity'   => $qty,
@@ -594,7 +594,7 @@ 
         );
         $cancellation_line_item = reset($cancellation_line_item);
         // verify that this ticket was indeed previously cancelled
-        if (! $cancellation_line_item instanceof EE_Line_Item) {
+        if ( ! $cancellation_line_item instanceof EE_Line_Item) {
             return false;
         }
         if ($cancellation_line_item->quantity() > $qty) {
@@ -809,7 +809,7 @@ 
                 'LIN_code'  => 'taxes',
                 'LIN_name'  => esc_html__('Taxes', 'event_espresso'),
                 'LIN_type'  => EEM_Line_Item::type_tax_sub_total,
-                'LIN_order' => 1000,// this should always come last
+                'LIN_order' => 1000, // this should always come last
             ]
         );
         $tax_line_item = apply_filters(
@@ -872,7 +872,7 @@ 
      */
     public static function get_event_code(?EE_Event $event = null): string
     {
-        return 'event-' . ($event instanceof EE_Event ? $event->ID() : '0');
+        return 'event-'.($event instanceof EE_Event ? $event->ID() : '0');
     }
 
 
@@ -923,7 +923,7 @@ 
     public static function get_event_line_item_for_ticket(EE_Line_Item $grand_total, EE_Ticket $ticket): EE_Line_Item
     {
         $first_datetime = $ticket->first_datetime();
-        if (! $first_datetime instanceof EE_Datetime) {
+        if ( ! $first_datetime instanceof EE_Datetime) {
             throw new EE_Error(
                 sprintf(
                     esc_html__('The supplied ticket (ID %d) has no datetimes', 'event_espresso'),
@@ -932,7 +932,7 @@ 
             );
         }
         $event = $first_datetime->event();
-        if (! $event instanceof EE_Event) {
+        if ( ! $event instanceof EE_Event) {
             throw new EE_Error(
                 sprintf(
                     esc_html__(
@@ -944,7 +944,7 @@ 
             );
         }
         $events_sub_total = EEH_Line_Item::get_event_line_item($grand_total, $event);
-        if (! $events_sub_total instanceof EE_Line_Item) {
+        if ( ! $events_sub_total instanceof EE_Line_Item) {
             throw new EE_Error(
                 sprintf(
                     esc_html__(
@@ -980,7 +980,7 @@ 
         $found           = false;
         foreach (EEH_Line_Item::get_event_subtotals($grand_total) as $event_line_item) {
             // default event subtotal, we should only ever find this the first time this method is called
-            if (! $event_line_item->OBJ_ID()) {
+            if ( ! $event_line_item->OBJ_ID()) {
                 // let's use this! but first... set the event details
                 EEH_Line_Item::set_event_subtotal_details($event_line_item, $event);
                 $found = true;
@@ -992,7 +992,7 @@ 
                 break;
             }
         }
-        if (! $found) {
+        if ( ! $found) {
             // there is no event sub-total yet, so add it
             $pre_tax_subtotal = EEH_Line_Item::get_pre_tax_subtotal($grand_total);
             // create a new "event" subtotal below that
@@ -1072,7 +1072,7 @@ 
                             break;
                         }
                     }
-                    if (! $found) {
+                    if ( ! $found) {
                         // add a new line item for this global tax
                         $tax_line_item = apply_filters(
                             'FHEE__EEH_Line_Item__apply_taxes__tax_line_item',
@@ -1090,7 +1090,7 @@ 
                                 ]
                             )
                         );
-                        $updates       = $taxes_line_item->add_child_line_item($tax_line_item) ? true : $updates;
+                        $updates = $taxes_line_item->add_child_line_item($tax_line_item) ? true : $updates;
                     }
                 }
             }
@@ -1119,7 +1119,7 @@ 
     public static function ensure_taxes_applied(?EE_Line_Item $total_line_item): float
     {
         $taxes_subtotal = self::get_taxes_subtotal($total_line_item);
-        if (! $taxes_subtotal->children()) {
+        if ( ! $taxes_subtotal->children()) {
             self::apply_taxes($total_line_item);
         }
         return $taxes_subtotal->total();
@@ -1185,7 +1185,7 @@ 
         }
 
         // check if only a single line_item_id was passed
-        if (! empty($line_item_codes) && ! is_array($line_item_codes)) {
+        if ( ! empty($line_item_codes) && ! is_array($line_item_codes)) {
             // place single line_item_id in an array to appear as multiple line_item_ids
             $line_item_codes = [$line_item_codes];
         }
@@ -1295,7 +1295,7 @@ 
         if ($code_substring_for_whitelist !== null) {
             $whitelisted = strpos($line_item->code(), $code_substring_for_whitelist) !== false;
         }
-        if (! $whitelisted && $line_item->is_line_item()) {
+        if ( ! $whitelisted && $line_item->is_line_item()) {
             $line_item->set_is_taxable($taxable);
         }
         foreach ($line_item->children() as $child_line_item) {
@@ -1677,7 +1677,7 @@ 
      */
     public static function visualize(EE_Line_Item $line_item, int $indentation = 0, bool $top_level = true)
     {
-        if (! defined('WP_DEBUG') || ! WP_DEBUG) {
+        if ( ! defined('WP_DEBUG') || ! WP_DEBUG) {
             return;
         }
         $testing  = defined('EE_TESTS_DIR');
@@ -1775,7 +1775,7 @@ 
                         $billable_ticket_quantities
                     );
                     // combine arrays but preserve numeric keys
-                    $running_totals                     = array_replace_recursive(
+                    $running_totals = array_replace_recursive(
                         $running_totals_from_subtotal,
                         $running_totals
                     );
@@ -1796,8 +1796,8 @@ 
                         if ($line_item_id === 'taxable') {
                             continue;
                         }
-                        $taxable_total                   = $running_totals['taxable'][ $line_item_id ];
-                        $running_totals[ $line_item_id ] += ($taxable_total * $tax_percent_decimal);
+                        $taxable_total = $running_totals['taxable'][$line_item_id];
+                        $running_totals[$line_item_id] += ($taxable_total * $tax_percent_decimal);
                     }
                     break;
 
@@ -1805,7 +1805,7 @@ 
                     // ticket line items or ????
                     if ($child_line_item->OBJ_type() === EEM_Line_Item::OBJ_TYPE_TICKET) {
                         // kk it's a ticket
-                        if (isset($running_totals[ $child_line_item->ID() ])) {
+                        if (isset($running_totals[$child_line_item->ID()])) {
                             // huh? that shouldn't happen.
                             $running_totals['total'] += $child_line_item->total();
                         } else {
@@ -1816,19 +1816,19 @@ 
                                 $taxable_amount = 0;
                             }
                             // are we only calculating totals for some tickets?
-                            if (isset($billable_ticket_quantities[ $child_line_item->OBJ_ID() ])) {
-                                $quantity = $billable_ticket_quantities[ $child_line_item->OBJ_ID() ];
+                            if (isset($billable_ticket_quantities[$child_line_item->OBJ_ID()])) {
+                                $quantity = $billable_ticket_quantities[$child_line_item->OBJ_ID()];
 
-                                $running_totals[ $child_line_item->ID() ]            = $quantity
+                                $running_totals[$child_line_item->ID()]            = $quantity
                                     ? $child_line_item->unit_price()
                                     : 0;
-                                $running_totals['taxable'][ $child_line_item->ID() ] = $quantity
+                                $running_totals['taxable'][$child_line_item->ID()] = $quantity
                                     ? $taxable_amount
                                     : 0;
                             } else {
                                 $quantity                                            = $child_line_item->quantity();
-                                $running_totals[ $child_line_item->ID() ]            = $child_line_item->unit_price();
-                                $running_totals['taxable'][ $child_line_item->ID() ] = $taxable_amount;
+                                $running_totals[$child_line_item->ID()]            = $child_line_item->unit_price();
+                                $running_totals['taxable'][$child_line_item->ID()] = $taxable_amount;
                             }
                             $running_totals['taxable']['total'] += $taxable_amount * $quantity;
                             $running_totals['total']            += $child_line_item->unit_price() * $quantity;
@@ -1848,12 +1848,12 @@ 
                             }
                             // update the running totals
                             // yes this actually even works for the running grand total!
-                            $running_totals[ $line_item_id ] =
+                            $running_totals[$line_item_id] =
                                 $line_items_percent_of_running_total * $this_running_total;
 
                             if ($child_line_item->is_taxable()) {
-                                $running_totals['taxable'][ $line_item_id ] =
-                                    $line_items_percent_of_running_total * $running_totals['taxable'][ $line_item_id ];
+                                $running_totals['taxable'][$line_item_id] =
+                                    $line_items_percent_of_running_total * $running_totals['taxable'][$line_item_id];
                             }
                         }
                     }
@@ -1882,16 +1882,16 @@ 
         static $final_prices_per_ticket_line_item = [];
         if (
             empty($final_prices_per_ticket_line_item)
-            || empty($final_prices_per_ticket_line_item[ $total_line_item->ID() ])
+            || empty($final_prices_per_ticket_line_item[$total_line_item->ID()])
         ) {
-            $final_prices_per_ticket_line_item[ $total_line_item->ID() ] =
+            $final_prices_per_ticket_line_item[$total_line_item->ID()] =
                 EEH_Line_Item::calculate_reg_final_prices_per_line_item(
                     $total_line_item
                 );
         }
         // ok now find this new registration's final price
-        if (isset($final_prices_per_ticket_line_item[ $total_line_item->ID() ][ $ticket_line_item->ID() ])) {
-            return $final_prices_per_ticket_line_item[ $total_line_item->ID() ][ $ticket_line_item->ID() ];
+        if (isset($final_prices_per_ticket_line_item[$total_line_item->ID()][$ticket_line_item->ID()])) {
+            return $final_prices_per_ticket_line_item[$total_line_item->ID()][$ticket_line_item->ID()];
         }
         $message = sprintf(
             esc_html__(
@@ -1902,7 +1902,7 @@ 
             $total_line_item->ID()
         );
         if (WP_DEBUG) {
-            $message .= '<br>' . print_r($final_prices_per_ticket_line_item, true);
+            $message .= '<br>'.print_r($final_prices_per_ticket_line_item, true);
             throw new OutOfRangeException($message);
         }
         EE_Log::instance()->log(__CLASS__, __FUNCTION__, $message);

core/helpers/EEH_Parse_Shortcodes.helper.php

Indentation +263 added lines, -263 removed lines

@@ -11,267 +11,267 @@
  */
 class EEH_Parse_Shortcodes
 {
-    /**
-     * holds the template
-     *
-     * @access private
-     * @var mixed (string|array)
-     */
-    private $_template;
-
-
-    /**
-     * holds the incoming data object
-     *
-     * @access private
-     * @var object
-     */
-    private $_data;
-
-
-    /**
-     * will hold an array of EE_Shortcodes library objects.
-     *
-     * @access private
-     * @var EE_Shortcodes[]
-     */
-    private $_shortcode_objs = array();
-
-
-    public function __construct()
-    {
-    }
-
-
-    /**
-     * This kicks off the parsing of shortcodes in message templates
-     *
-     * @param  string                $template         This is the incoming string to be parsed
-     * @param  EE_Messages_Addressee $data             This is the incoming data object
-     * @param  array                 $valid_shortcodes An array of strings that correspond to EE_Shortcode libraries
-     * @param EE_message_type        $message_type     The message type that called the parser
-     * @param EE_messenger           $messenger        The active messenger for this parsing session.
-     * @param EE_Message             $message
-     * @return string                   The parsed template string
-     */
-    public function parse_message_template(
-        $template,
-        EE_Messages_Addressee $data,
-        $valid_shortcodes,
-        EE_message_type $message_type,
-        EE_messenger $messenger,
-        EE_Message $message
-    ) {
-        $extra_data = array(
-            'messenger'    => $messenger,
-            'message_type' => $message_type,
-            'message'      => $message,
-        );
-        $this->_init_data($template, $data, $valid_shortcodes, $extra_data);
-        $this->_template = is_array($template) ? $template['main'] : $template;
-        return $this->_parse_message_template();
-    }
-
-
-    public function parse_attendee_list_template(
-        $template,
-        EE_Registration $registration,
-        $valid_shortcodes,
-        $extra_data = array()
-    ) {
-        $this->_init_data($template, $registration, $valid_shortcodes, $extra_data);
-        $this->_template = is_array($template) ? $template['attendee_list'] : $template;
-        return $this->_parse_message_template();
-    }
-
-    public function parse_event_list_template($template, EE_Event $event, $valid_shortcodes, $extra_data = array())
-    {
-        $this->_init_data($template, $event, $valid_shortcodes, $extra_data);
-        $this->_template = is_array($template) ? $template['event_list'] : $template;
-        return $this->_parse_message_template();
-    }
-
-
-    public function parse_ticket_list_template($template, EE_Ticket $ticket, $valid_shortcodes, $extra_data = array())
-    {
-        $this->_init_data($template, $ticket, $valid_shortcodes, $extra_data);
-        $this->_template = is_array($template) ? $template['ticket_list'] : $template;
-        return $this->_parse_message_template();
-    }
-
-
-    public function parse_line_item_list_template(
-        $template,
-        EE_Line_Item $line_item,
-        $valid_shortcodes,
-        $extra_data = array()
-    ) {
-        $this->_init_data($template, $line_item, $valid_shortcodes, $extra_data);
-        $this->_template = is_array($template) ? $template['ticket_line_item_no_pms'] : $template;
-        return $this->_parse_message_template();
-    }
-
-
-    public function parse_payment_list_template(
-        $template,
-        EE_Payment $payment_item,
-        $valid_shortcodes,
-        $extra_data = array()
-    ) {
-        $this->_init_data($template, $payment_item, $valid_shortcodes, $extra_data);
-        $this->_template = is_array($template) ? $template['payment_list'] : $template;
-        return $this->_parse_message_template();
-    }
-
-
-    public function parse_datetime_list_template(
-        $template,
-        EE_Datetime $datetime,
-        $valid_shortcodes,
-        $extra_data = array()
-    ) {
-        $this->_init_data($template, $datetime, $valid_shortcodes, $extra_data);
-        $this->_template = is_array($template) ? $template['datetime_list'] : $template;
-        return $this->_parse_message_template();
-    }
-
-
-    public function parse_question_list_template($template, EE_Answer $answer, $valid_shortcodes, $extra_data = array())
-    {
-        $this->_init_data($template, $answer, $valid_shortcodes, $extra_data);
-        $this->_template = is_array($template) ? $template['question_list'] : $template;
-        return $this->_parse_message_template();
-    }
-
-
-    private function _init_data($template, $data, $valid_shortcodes, $extra_data = array())
-    {
-        $this->_reset_props();
-        $this->_data['template']   = $template;
-        $this->_data['data']       = $data;
-        $this->_data['extra_data'] = $extra_data;
-        $this->_set_shortcodes($valid_shortcodes);
-    }
-
-
-    private function _reset_props()
-    {
-        $this->_template       = $this->_data = null;
-        $this->_shortcode_objs = array();
-    }
-
-
-    /**
-     * takes the given template and parses it with the $_shortcodes property
-     *
-     * @access private
-     * @return string
-     */
-    private function _parse_message_template()
-    {
-        // now let's get a list of shortcodes that are found in the given template
-        preg_match_all('/(\[.+?\])/', $this->_template, $matches);
-        $shortcodes = (array) $matches[0]; // this should be an array of shortcodes in the template string.
-
-        $matched_code = array();
-        $sc_values    = array();
-
-        $list_type_shortcodes = array(
-            '[ATTENDEE_LIST]',
-            '[EVENT_LIST]',
-            '[TICKET_LIST]',
-            '[DATETIME_LIST]',
-            '[QUESTION_LIST]',
-            '[RECIPIENT_QUESTION_LIST]',
-            '[PRIMARY_REGISTRANT_QUESTION_LIST]',
-            '[RECIPIENT_TICKET_LIST]',
-            '[PRIMARY_REGISTRANT_TICKET_LIST]',
-            '[RECIPIENT_DATETIME_LIST]',
-            '[PRIMARY_REGISTRANT_DATETIME_LIST]',
-            '[TICKET_LINE_ITEM_LIST]',
-            '[TAX_LINE_ITEM_LIST]',
-            '[ADDITIONAL_LINE_ITEM_LIST]',
-            '[PRICE_MODIFIER_LINE_ITEM_LIST]',
-            '[PAYMENT_LIST_*]',
-        );
-
-        $list_type_shortcodes = apply_filters(
-            'FHEE__EEH_Parse_Shortcodes___parse_message_template__list_type_shortcodes',
-            $list_type_shortcodes
-        );
-
-        // now lets go ahead and loop through our parsers for each shortcode and setup the values
-        foreach ($shortcodes as $shortcode) {
-            foreach ($this->_shortcode_objs as $sc_obj) {
-                if ($sc_obj instanceof EE_Shortcodes) {
-                    // we need to setup any dynamic shortcodes so that they work with the array_key_exists
-                    preg_match_all('/(\[[A-Za-z0-9\_]+_\*)/', $shortcode, $matches);
-                    $sc_to_verify = ! empty($matches[0]) ? $matches[0][0] . ']' : $shortcode;
-
-                    if (! array_key_exists($sc_to_verify, $sc_obj->get_shortcodes())) {
-                        continue; // the given shortcode isn't in this object
-                    }
-
-                    // if this isn't  a "list" type shortcode then we'll send along the data vanilla instead of in an array.
-                    if (! in_array($sc_to_verify, $list_type_shortcodes)) {
-                        $data_send = ! is_object($this->_data) && isset($this->_data['data']) ? $this->_data['data'] : $this->_data;
-                    } else {
-                        $data_send = $this->_data;
-                    }
-
-                    // is this a conditional type shortcode?  If it is then we actually parse the template here.
-                    if ($this->_is_conditional_shortcode($shortcode)) {
-                        // most shortcode parsers are not going to have a match for this shortcode and will return an
-                        // empty string so we need to make sure that we're only replacing the template when there is a non empty string.
-                        $parsed = $sc_obj->parser($shortcode, $data_send, $this->_data['extra_data']);
-                        if ($parsed) {
-                            $this->_template = $parsed;
-                        }
-                    }
-
-                    $parsed = $sc_obj->parser($shortcode, $data_send, $this->_data['extra_data']);
-
-                    $matched_code[] = $shortcode;
-                    $sc_values[]    = $parsed;
-                }
-            }
-        }
-
-        // now we've got parsed values for all the shortcodes in the template so we can go ahead and swap the shortcodes out.
-        return str_replace(array_values($matched_code), array_values($sc_values), $this->_template);
-    }
-
-
-    /**
-     * Simply returns whether the given shortcode matches the structure for a conditional shortcode.
-     *
-     * Does it match this format: `[IF_`
-     *
-     * @param $shortcode
-     */
-    protected function _is_conditional_shortcode($shortcode)
-    {
-        return strpos($shortcode, '[IF_') === 0;
-    }
-
-
-    /**
-     * This sets the shortcodes property from the incoming array of valid shortcodes that corresponds to names of
-     * various EE_Shortcode library objects
-     *
-     * @access private
-     * @param array $valid_shortcodes an array of strings corresponding to EE_Shortcode Library objects
-     * @return void
-     */
-    private function _set_shortcodes($valid_shortcodes)
-    {
-        foreach ($valid_shortcodes as $shortcode_ref) {
-            $ref       = ucwords(str_replace('_', ' ', $shortcode_ref));
-            $ref       = str_replace(' ', '_', $ref);
-            $classname = 'EE_' . $ref . '_Shortcodes';
-            if (class_exists($classname)) {
-                $this->_shortcode_objs[] = new $classname();
-            }
-        }
-    }
+	/**
+	 * holds the template
+	 *
+	 * @access private
+	 * @var mixed (string|array)
+	 */
+	private $_template;
+
+
+	/**
+	 * holds the incoming data object
+	 *
+	 * @access private
+	 * @var object
+	 */
+	private $_data;
+
+
+	/**
+	 * will hold an array of EE_Shortcodes library objects.
+	 *
+	 * @access private
+	 * @var EE_Shortcodes[]
+	 */
+	private $_shortcode_objs = array();
+
+
+	public function __construct()
+	{
+	}
+
+
+	/**
+	 * This kicks off the parsing of shortcodes in message templates
+	 *
+	 * @param  string                $template         This is the incoming string to be parsed
+	 * @param  EE_Messages_Addressee $data             This is the incoming data object
+	 * @param  array                 $valid_shortcodes An array of strings that correspond to EE_Shortcode libraries
+	 * @param EE_message_type        $message_type     The message type that called the parser
+	 * @param EE_messenger           $messenger        The active messenger for this parsing session.
+	 * @param EE_Message             $message
+	 * @return string                   The parsed template string
+	 */
+	public function parse_message_template(
+		$template,
+		EE_Messages_Addressee $data,
+		$valid_shortcodes,
+		EE_message_type $message_type,
+		EE_messenger $messenger,
+		EE_Message $message
+	) {
+		$extra_data = array(
+			'messenger'    => $messenger,
+			'message_type' => $message_type,
+			'message'      => $message,
+		);
+		$this->_init_data($template, $data, $valid_shortcodes, $extra_data);
+		$this->_template = is_array($template) ? $template['main'] : $template;
+		return $this->_parse_message_template();
+	}
+
+
+	public function parse_attendee_list_template(
+		$template,
+		EE_Registration $registration,
+		$valid_shortcodes,
+		$extra_data = array()
+	) {
+		$this->_init_data($template, $registration, $valid_shortcodes, $extra_data);
+		$this->_template = is_array($template) ? $template['attendee_list'] : $template;
+		return $this->_parse_message_template();
+	}
+
+	public function parse_event_list_template($template, EE_Event $event, $valid_shortcodes, $extra_data = array())
+	{
+		$this->_init_data($template, $event, $valid_shortcodes, $extra_data);
+		$this->_template = is_array($template) ? $template['event_list'] : $template;
+		return $this->_parse_message_template();
+	}
+
+
+	public function parse_ticket_list_template($template, EE_Ticket $ticket, $valid_shortcodes, $extra_data = array())
+	{
+		$this->_init_data($template, $ticket, $valid_shortcodes, $extra_data);
+		$this->_template = is_array($template) ? $template['ticket_list'] : $template;
+		return $this->_parse_message_template();
+	}
+
+
+	public function parse_line_item_list_template(
+		$template,
+		EE_Line_Item $line_item,
+		$valid_shortcodes,
+		$extra_data = array()
+	) {
+		$this->_init_data($template, $line_item, $valid_shortcodes, $extra_data);
+		$this->_template = is_array($template) ? $template['ticket_line_item_no_pms'] : $template;
+		return $this->_parse_message_template();
+	}
+
+
+	public function parse_payment_list_template(
+		$template,
+		EE_Payment $payment_item,
+		$valid_shortcodes,
+		$extra_data = array()
+	) {
+		$this->_init_data($template, $payment_item, $valid_shortcodes, $extra_data);
+		$this->_template = is_array($template) ? $template['payment_list'] : $template;
+		return $this->_parse_message_template();
+	}
+
+
+	public function parse_datetime_list_template(
+		$template,
+		EE_Datetime $datetime,
+		$valid_shortcodes,
+		$extra_data = array()
+	) {
+		$this->_init_data($template, $datetime, $valid_shortcodes, $extra_data);
+		$this->_template = is_array($template) ? $template['datetime_list'] : $template;
+		return $this->_parse_message_template();
+	}
+
+
+	public function parse_question_list_template($template, EE_Answer $answer, $valid_shortcodes, $extra_data = array())
+	{
+		$this->_init_data($template, $answer, $valid_shortcodes, $extra_data);
+		$this->_template = is_array($template) ? $template['question_list'] : $template;
+		return $this->_parse_message_template();
+	}
+
+
+	private function _init_data($template, $data, $valid_shortcodes, $extra_data = array())
+	{
+		$this->_reset_props();
+		$this->_data['template']   = $template;
+		$this->_data['data']       = $data;
+		$this->_data['extra_data'] = $extra_data;
+		$this->_set_shortcodes($valid_shortcodes);
+	}
+
+
+	private function _reset_props()
+	{
+		$this->_template       = $this->_data = null;
+		$this->_shortcode_objs = array();
+	}
+
+
+	/**
+	 * takes the given template and parses it with the $_shortcodes property
+	 *
+	 * @access private
+	 * @return string
+	 */
+	private function _parse_message_template()
+	{
+		// now let's get a list of shortcodes that are found in the given template
+		preg_match_all('/(\[.+?\])/', $this->_template, $matches);
+		$shortcodes = (array) $matches[0]; // this should be an array of shortcodes in the template string.
+
+		$matched_code = array();
+		$sc_values    = array();
+
+		$list_type_shortcodes = array(
+			'[ATTENDEE_LIST]',
+			'[EVENT_LIST]',
+			'[TICKET_LIST]',
+			'[DATETIME_LIST]',
+			'[QUESTION_LIST]',
+			'[RECIPIENT_QUESTION_LIST]',
+			'[PRIMARY_REGISTRANT_QUESTION_LIST]',
+			'[RECIPIENT_TICKET_LIST]',
+			'[PRIMARY_REGISTRANT_TICKET_LIST]',
+			'[RECIPIENT_DATETIME_LIST]',
+			'[PRIMARY_REGISTRANT_DATETIME_LIST]',
+			'[TICKET_LINE_ITEM_LIST]',
+			'[TAX_LINE_ITEM_LIST]',
+			'[ADDITIONAL_LINE_ITEM_LIST]',
+			'[PRICE_MODIFIER_LINE_ITEM_LIST]',
+			'[PAYMENT_LIST_*]',
+		);
+
+		$list_type_shortcodes = apply_filters(
+			'FHEE__EEH_Parse_Shortcodes___parse_message_template__list_type_shortcodes',
+			$list_type_shortcodes
+		);
+
+		// now lets go ahead and loop through our parsers for each shortcode and setup the values
+		foreach ($shortcodes as $shortcode) {
+			foreach ($this->_shortcode_objs as $sc_obj) {
+				if ($sc_obj instanceof EE_Shortcodes) {
+					// we need to setup any dynamic shortcodes so that they work with the array_key_exists
+					preg_match_all('/(\[[A-Za-z0-9\_]+_\*)/', $shortcode, $matches);
+					$sc_to_verify = ! empty($matches[0]) ? $matches[0][0] . ']' : $shortcode;
+
+					if (! array_key_exists($sc_to_verify, $sc_obj->get_shortcodes())) {
+						continue; // the given shortcode isn't in this object
+					}
+
+					// if this isn't  a "list" type shortcode then we'll send along the data vanilla instead of in an array.
+					if (! in_array($sc_to_verify, $list_type_shortcodes)) {
+						$data_send = ! is_object($this->_data) && isset($this->_data['data']) ? $this->_data['data'] : $this->_data;
+					} else {
+						$data_send = $this->_data;
+					}
+
+					// is this a conditional type shortcode?  If it is then we actually parse the template here.
+					if ($this->_is_conditional_shortcode($shortcode)) {
+						// most shortcode parsers are not going to have a match for this shortcode and will return an
+						// empty string so we need to make sure that we're only replacing the template when there is a non empty string.
+						$parsed = $sc_obj->parser($shortcode, $data_send, $this->_data['extra_data']);
+						if ($parsed) {
+							$this->_template = $parsed;
+						}
+					}
+
+					$parsed = $sc_obj->parser($shortcode, $data_send, $this->_data['extra_data']);
+
+					$matched_code[] = $shortcode;
+					$sc_values[]    = $parsed;
+				}
+			}
+		}
+
+		// now we've got parsed values for all the shortcodes in the template so we can go ahead and swap the shortcodes out.
+		return str_replace(array_values($matched_code), array_values($sc_values), $this->_template);
+	}
+
+
+	/**
+	 * Simply returns whether the given shortcode matches the structure for a conditional shortcode.
+	 *
+	 * Does it match this format: `[IF_`
+	 *
+	 * @param $shortcode
+	 */
+	protected function _is_conditional_shortcode($shortcode)
+	{
+		return strpos($shortcode, '[IF_') === 0;
+	}
+
+
+	/**
+	 * This sets the shortcodes property from the incoming array of valid shortcodes that corresponds to names of
+	 * various EE_Shortcode library objects
+	 *
+	 * @access private
+	 * @param array $valid_shortcodes an array of strings corresponding to EE_Shortcode Library objects
+	 * @return void
+	 */
+	private function _set_shortcodes($valid_shortcodes)
+	{
+		foreach ($valid_shortcodes as $shortcode_ref) {
+			$ref       = ucwords(str_replace('_', ' ', $shortcode_ref));
+			$ref       = str_replace(' ', '_', $ref);
+			$classname = 'EE_' . $ref . '_Shortcodes';
+			if (class_exists($classname)) {
+				$this->_shortcode_objs[] = new $classname();
+			}
+		}
+	}
 }

core/helpers/EEH_Form_Fields.helper.php

Indentation +2058 added lines, -2058 removed lines

@@ -27,1056 +27,1056 @@ 
  */
 class EEH_Form_Fields
 {
-    /**
-     *  Generates HTML for the forms used on admin pages
-     *
-     *
-     * @static
-     * @access public
-     * @param array $input_vars - array of input field details
-     *                          format:
-     *                          $template_form_fields['field-id'] = array(
-     *                          'name' => 'name_attribute',
-     *                          'label' => esc_html__('Field Label', 'event_espresso'), //or false
-     *                          'input' => 'hidden', //field input type can be 'text', 'select', 'textarea', 'hidden',
-     *                          'checkbox', 'wp_editor'
-     *                          'type' => 'int', //what "type" the value is (i.e. string, int etc)
-     *                          'required' => false, //boolean for whether the field is required
-     *                          'validation' => true, //boolean, whether to validate the field (todo)
-     *                          'value' => 'some_value_for_field', //what value is used for field
-     *                          'format' => '%d', //what format the value is (%d, %f, or %s)
-     *                          'db-col' => 'column_in_db' //used to indicate which column the field corresponds with
-     *                          in the db
-     *                          'options' => optiona, optionb || array('value' => 'label', '') //if the input type is
-     *                          "select", this allows you to set the args for the different <option> tags.
-     *                          'tabindex' => 1 //this allows you to set the tabindex for the field.
-     *                          'append_content' => '' //this allows you to send in html content to append to the
-     *                          field.
-     *                          )
-     * @param array $form_id    - used for defining unique identifiers for the form.
-     * @return string
-     * @todo   : at some point we can break this down into other static methods to abstract it a bit better.
-     */
-    public static function get_form_fields($input_vars = [], $form_id = false)
-    {
-
-        if (empty($input_vars)) {
-            EE_Error::add_error(
-                esc_html__('missing required variables for the form field generator', 'event_espresso'),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return false;
-        }
-
-        $output        = "";
-        $inputs        = [];
-        $hidden_inputs = [];
-
-        // cycle thru inputs
-        foreach ($input_vars as $input_key => $input_value) {
-            $defaults = [
-                'append_content' => '',
-                'css_class'      => '',
-                'cols'           => 80,
-                'db-col'         => 'column_in_db',
-                'format'         => '%d',
-                'input'          => 'hidden',
-                'label'          => esc_html__('No label', 'event_espresso'),
-                'name'           => $input_key,
-                'options'        => [],
-                'required'       => false,
-                'tabindex'       => 0,
-                'rows'           => 10,
-                'type'           => 'int',
-                'validation'     => true,
-                'value'          => 'some_value_for_field',
-            ];
-
-            $input_value = wp_parse_args($input_value, $defaults);
-
-            $append_content = $input_value['append_content'];
-            $css_class      = $input_value['css_class'];
-            $cols           = $input_value['cols'];
-            $label          = $input_value['label'];
-            $name           = $input_value['name'];
-            $options        = $input_value['options'];
-            $required       = $input_value['required'];
-            $tab_index      = $input_value['tabindex'];
-            $rows           = $input_value['rows'];
-            $type           = $input_value['input'];
-            $value          = $input_value['value'];
-
-            $id    = $form_id ? $form_id . '-' . $input_key : $input_key;
-            $class = $required ? 'required ' . $css_class : $css_class;
-
-            // what type of input are we dealing with ?
-            switch ($type) {
-                case 'checkbox':
-                case 'radio':
-                    $field = self::adminMulti($value, $class, $id, $name, $required, $tab_index, $type, 1, $label);
-                    $field .= $append_content ?: '';
-                    break;
-
-                case 'hidden':
-                    $field           = null;
-                    $hidden_inputs[] = self::adminHidden($css_class, $id, $name, $value);
-                    break;
-
-                case 'select':
-                    $options = is_array($options) ? $options : explode(',', $options);
-                    $field   = self::adminLabel($id, $label, $required);
-                    $field   .= self::adminSelect($value, $class, $id, $name, $required, $tab_index, $options);
-                    $field   .= $append_content ?: '';
-                    break;
-
-                case 'textarea':
-                    $field = self::adminLabel($id, $label, $required);
-                    $field .= self::adminTextarea($class, $cols, $id, $name, $required, $rows, $tab_index, $value);
-                    $field .= $append_content ?: '';
-                    break;
-
-                case 'wp_editor':
-                    $label = esc_html($label);
-                    $field = "<h4>{$label}</h4>";
-                    $field .= $append_content ?: '';
-                    $field .= self::adminWpEditor(
-                        $class,
-                        $id,
-                        $name,
-                        $rows,
-                        $tab_index,
-                        $value
-                    );
-                    break;
-
-                default:
-                    $field = self::adminLabel($id, $label, $required);
-                    $field .= self::adminText($class, $id, $name, $required, $tab_index, $value);
-                    $field .= $append_content ?: '';
-            }
-            if ($field) {
-                $inputs[] = $field;
-            }
-        } // end foreach( $input_vars as $input_key => $input_value )
-
-        if (! empty($inputs)) {
-            $glue   = "
+	/**
+	 *  Generates HTML for the forms used on admin pages
+	 *
+	 *
+	 * @static
+	 * @access public
+	 * @param array $input_vars - array of input field details
+	 *                          format:
+	 *                          $template_form_fields['field-id'] = array(
+	 *                          'name' => 'name_attribute',
+	 *                          'label' => esc_html__('Field Label', 'event_espresso'), //or false
+	 *                          'input' => 'hidden', //field input type can be 'text', 'select', 'textarea', 'hidden',
+	 *                          'checkbox', 'wp_editor'
+	 *                          'type' => 'int', //what "type" the value is (i.e. string, int etc)
+	 *                          'required' => false, //boolean for whether the field is required
+	 *                          'validation' => true, //boolean, whether to validate the field (todo)
+	 *                          'value' => 'some_value_for_field', //what value is used for field
+	 *                          'format' => '%d', //what format the value is (%d, %f, or %s)
+	 *                          'db-col' => 'column_in_db' //used to indicate which column the field corresponds with
+	 *                          in the db
+	 *                          'options' => optiona, optionb || array('value' => 'label', '') //if the input type is
+	 *                          "select", this allows you to set the args for the different <option> tags.
+	 *                          'tabindex' => 1 //this allows you to set the tabindex for the field.
+	 *                          'append_content' => '' //this allows you to send in html content to append to the
+	 *                          field.
+	 *                          )
+	 * @param array $form_id    - used for defining unique identifiers for the form.
+	 * @return string
+	 * @todo   : at some point we can break this down into other static methods to abstract it a bit better.
+	 */
+	public static function get_form_fields($input_vars = [], $form_id = false)
+	{
+
+		if (empty($input_vars)) {
+			EE_Error::add_error(
+				esc_html__('missing required variables for the form field generator', 'event_espresso'),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return false;
+		}
+
+		$output        = "";
+		$inputs        = [];
+		$hidden_inputs = [];
+
+		// cycle thru inputs
+		foreach ($input_vars as $input_key => $input_value) {
+			$defaults = [
+				'append_content' => '',
+				'css_class'      => '',
+				'cols'           => 80,
+				'db-col'         => 'column_in_db',
+				'format'         => '%d',
+				'input'          => 'hidden',
+				'label'          => esc_html__('No label', 'event_espresso'),
+				'name'           => $input_key,
+				'options'        => [],
+				'required'       => false,
+				'tabindex'       => 0,
+				'rows'           => 10,
+				'type'           => 'int',
+				'validation'     => true,
+				'value'          => 'some_value_for_field',
+			];
+
+			$input_value = wp_parse_args($input_value, $defaults);
+
+			$append_content = $input_value['append_content'];
+			$css_class      = $input_value['css_class'];
+			$cols           = $input_value['cols'];
+			$label          = $input_value['label'];
+			$name           = $input_value['name'];
+			$options        = $input_value['options'];
+			$required       = $input_value['required'];
+			$tab_index      = $input_value['tabindex'];
+			$rows           = $input_value['rows'];
+			$type           = $input_value['input'];
+			$value          = $input_value['value'];
+
+			$id    = $form_id ? $form_id . '-' . $input_key : $input_key;
+			$class = $required ? 'required ' . $css_class : $css_class;
+
+			// what type of input are we dealing with ?
+			switch ($type) {
+				case 'checkbox':
+				case 'radio':
+					$field = self::adminMulti($value, $class, $id, $name, $required, $tab_index, $type, 1, $label);
+					$field .= $append_content ?: '';
+					break;
+
+				case 'hidden':
+					$field           = null;
+					$hidden_inputs[] = self::adminHidden($css_class, $id, $name, $value);
+					break;
+
+				case 'select':
+					$options = is_array($options) ? $options : explode(',', $options);
+					$field   = self::adminLabel($id, $label, $required);
+					$field   .= self::adminSelect($value, $class, $id, $name, $required, $tab_index, $options);
+					$field   .= $append_content ?: '';
+					break;
+
+				case 'textarea':
+					$field = self::adminLabel($id, $label, $required);
+					$field .= self::adminTextarea($class, $cols, $id, $name, $required, $rows, $tab_index, $value);
+					$field .= $append_content ?: '';
+					break;
+
+				case 'wp_editor':
+					$label = esc_html($label);
+					$field = "<h4>{$label}</h4>";
+					$field .= $append_content ?: '';
+					$field .= self::adminWpEditor(
+						$class,
+						$id,
+						$name,
+						$rows,
+						$tab_index,
+						$value
+					);
+					break;
+
+				default:
+					$field = self::adminLabel($id, $label, $required);
+					$field .= self::adminText($class, $id, $name, $required, $tab_index, $value);
+					$field .= $append_content ?: '';
+			}
+			if ($field) {
+				$inputs[] = $field;
+			}
+		} // end foreach( $input_vars as $input_key => $input_value )
+
+		if (! empty($inputs)) {
+			$glue   = "
                 </li>
                 <li>
                     ";
-            $inputs = implode($glue, $inputs);
-            $output = "
+			$inputs = implode($glue, $inputs);
+			$output = "
             <ul>
                 <li>
                 {$inputs}
                 </li>
             </ul>
             ";
-        }
-        return $output . implode("\n", $hidden_inputs);
-    }
-
-
-    /**
-     * form_fields_array
-     * This utility function assembles form fields from a given structured array with field information.
-     * //TODO: This is an alternate generator that we may want to use instead.
-     *
-     * @param array $fields structured array of fields to assemble in the following format:
-     *                      [field_name] => array(
-     *                      ['label'] => 'label for field',
-     *                      ['labels'] => array('label_1', 'label_2'); //optional - if the field type is a multi select
-     *                      type of field you can indicated the labels for each option via this index
-     *                      ['extra_desc'] => 'extra description for the field', //optional
-     *                      ['type'] => 'textarea'|'text'|'wp_editor'|'checkbox'|'radio'|'hidden'|'select', //defaults
-     *                      to text
-     *                      ['value'] => 'value that goes in the field', //(if multi then this is an array of values
-     *                      and the 'default' paramater will be used for what is selected)
-     *                      ['default'] => 'default if the field type is multi (i.e. select or radios or checkboxes)',
-     *                      ['class'] => 'name-of-class(es)-for-input',
-     *                      ['classes'] => array('class_1', 'class_2'); //optional - if the field type is a multi
-     *                      select type of field you can indicate the css class for each option via this index.
-     *                      ['id'] => 'css-id-for-input') //defaults to 'field_name'
-     *                      ['unique_id'] => 1 //defaults to empty string.  This is useful for when the fields
-     *                      generated are going to be used in a loop and you want to make sure that the field
-     *                      identifiers are unique from each other.
-     *                      ['dimensions'] => array(100,300), //defaults to empty array.  This is used by field types
-     *                      such as textarea to indicate cols/rows.
-     *                      ['tabindex'] => '' //this allows you to set the tabindex for the field.
-     *                      ['wpeditor_args'] => array() //if the type of field is wpeditor then this can optionally
-     *                      contain an array of arguments for the editor setup.
-     *
-     * @return array         an array of inputs for form indexed by field name, and in the following structure:
-     *     [field_name] => array( 'label' => '{label_html}', 'field' => '{input_html}'
-     */
-    public static function get_form_fields_array($fields)
-    {
-
-        $form_fields = [];
-        $fields      = (array) $fields;
-
-        foreach ($fields as $field_name => $field_atts) {
-            // defaults:
-            $defaults = [
-                'class'         => '',
-                'classes'       => '',
-                'default'       => '',
-                'dimensions'    => ['10', '5'],
-                'extra_desc'    => '',
-                'id'            => $field_name,
-                'label'         => '',
-                'labels'        => '',
-                'required'      => false,
-                'tabindex'      => 0,
-                'type'          => 'text',
-                'unique_id'     => '',
-                'value'         => '',
-                'wpeditor_args' => [],
-            ];
-            // merge defaults with passed arguments
-            $_fields = wp_parse_args($field_atts, $defaults);
-
-            $class          = $_fields['class'];
-            $classes        = $_fields['classes'];
-            $default        = $_fields['default'];
-            $dims           = $_fields['dimensions'];
-            $extra_desc     = $_fields['extra_desc'];
-            $id             = $_fields['id'];
-            $label          = $_fields['label'];
-            $labels         = $_fields['labels'];
-            $required       = $_fields['required'];
-            $tab_index      = $_fields['tabindex'];
-            $type           = $_fields['type'];
-            $unique_id      = $_fields['unique_id'];
-            $value          = $_fields['value'];
-            $wp_editor_args = $_fields['wpeditor_args'];
-
-            // generate label
-            $label = ! empty($label) ? self::adminLabel($id, $label, $required) : '';
-            // generate field name
-            $name = ! empty($unique_id) ? $field_name . '[' . $unique_id . ']' : $field_name;
-
-            // we determine what we're building based on the type
-            switch ($type) {
-                case 'checkbox':
-                case 'radio':
-                    if (is_array($value)) {
-                        $c_input = '';
-                        foreach ($value as $key => $val) {
-                            $c_input .= self::adminMulti(
-                                $default,
-                                isset($classes[ $key ]) ? $classes[ $key ] : '',
-                                $field_name . '_' . $value,
-                                $name,
-                                $required,
-                                $tab_index,
-                                $type,
-                                $val,
-                                isset($labels[ $key ]) ? $labels[ $key ] : ''
-                            );
-                        }
-                        $field = $c_input;
-                    } else {
-                        $field = self::adminMulti(
-                            $default,
-                            $class,
-                            $id,
-                            $name,
-                            $required,
-                            $tab_index,
-                            $type,
-                            $value,
-                            $_fields['label']
-                        );
-                    }
-                    break;
-
-                case 'hidden':
-                    $field = self::adminHidden($class, $id, $name, $value);
-                    break;
-
-                case 'select':
-                    $options = [];
-                    foreach ($value as $key => $val) {
-                        $options[ $val ] = isset($labels[ $key ]) ? $labels[ $key ] : '';
-                    }
-                    $field = self::adminSelect($default, $class, $id, $name, $required, $tab_index, $options);
-                    break;
-
-                case 'textarea':
-                    $field =
-                        self::adminTextarea($class, $dims[0], $id, $name, $required, $dims[1], $tab_index, $value);
-                    break;
-
-                case 'wp_editor':
-                    $field = self::adminWpEditor(
-                        $class,
-                        $_fields['id'],
-                        $name,
-                        $dims[1],
-                        $tab_index,
-                        $value,
-                        $wp_editor_args
-                    );
-                    break;
-
-                default:
-                    $field = self::adminText($class, $id, $name, $required, $tab_index, $value);
-            }
-
-            $form_fields[ $field_name ] = ['label' => $label, 'field' => $field . $extra_desc];
-        }
-
-        return $form_fields;
-    }
-
-
-    /**
-     * @param string $class
-     * @param string $id
-     * @param string $name
-     * @param string $value
-     * @return string
-     * @since   4.10.14.p
-     */
-    private static function adminHidden($class, $id, $name, $value)
-    {
-        $id    = esc_attr($id);
-        $name  = esc_attr($name);
-        $class = esc_attr($class);
-        return "
+		}
+		return $output . implode("\n", $hidden_inputs);
+	}
+
+
+	/**
+	 * form_fields_array
+	 * This utility function assembles form fields from a given structured array with field information.
+	 * //TODO: This is an alternate generator that we may want to use instead.
+	 *
+	 * @param array $fields structured array of fields to assemble in the following format:
+	 *                      [field_name] => array(
+	 *                      ['label'] => 'label for field',
+	 *                      ['labels'] => array('label_1', 'label_2'); //optional - if the field type is a multi select
+	 *                      type of field you can indicated the labels for each option via this index
+	 *                      ['extra_desc'] => 'extra description for the field', //optional
+	 *                      ['type'] => 'textarea'|'text'|'wp_editor'|'checkbox'|'radio'|'hidden'|'select', //defaults
+	 *                      to text
+	 *                      ['value'] => 'value that goes in the field', //(if multi then this is an array of values
+	 *                      and the 'default' paramater will be used for what is selected)
+	 *                      ['default'] => 'default if the field type is multi (i.e. select or radios or checkboxes)',
+	 *                      ['class'] => 'name-of-class(es)-for-input',
+	 *                      ['classes'] => array('class_1', 'class_2'); //optional - if the field type is a multi
+	 *                      select type of field you can indicate the css class for each option via this index.
+	 *                      ['id'] => 'css-id-for-input') //defaults to 'field_name'
+	 *                      ['unique_id'] => 1 //defaults to empty string.  This is useful for when the fields
+	 *                      generated are going to be used in a loop and you want to make sure that the field
+	 *                      identifiers are unique from each other.
+	 *                      ['dimensions'] => array(100,300), //defaults to empty array.  This is used by field types
+	 *                      such as textarea to indicate cols/rows.
+	 *                      ['tabindex'] => '' //this allows you to set the tabindex for the field.
+	 *                      ['wpeditor_args'] => array() //if the type of field is wpeditor then this can optionally
+	 *                      contain an array of arguments for the editor setup.
+	 *
+	 * @return array         an array of inputs for form indexed by field name, and in the following structure:
+	 *     [field_name] => array( 'label' => '{label_html}', 'field' => '{input_html}'
+	 */
+	public static function get_form_fields_array($fields)
+	{
+
+		$form_fields = [];
+		$fields      = (array) $fields;
+
+		foreach ($fields as $field_name => $field_atts) {
+			// defaults:
+			$defaults = [
+				'class'         => '',
+				'classes'       => '',
+				'default'       => '',
+				'dimensions'    => ['10', '5'],
+				'extra_desc'    => '',
+				'id'            => $field_name,
+				'label'         => '',
+				'labels'        => '',
+				'required'      => false,
+				'tabindex'      => 0,
+				'type'          => 'text',
+				'unique_id'     => '',
+				'value'         => '',
+				'wpeditor_args' => [],
+			];
+			// merge defaults with passed arguments
+			$_fields = wp_parse_args($field_atts, $defaults);
+
+			$class          = $_fields['class'];
+			$classes        = $_fields['classes'];
+			$default        = $_fields['default'];
+			$dims           = $_fields['dimensions'];
+			$extra_desc     = $_fields['extra_desc'];
+			$id             = $_fields['id'];
+			$label          = $_fields['label'];
+			$labels         = $_fields['labels'];
+			$required       = $_fields['required'];
+			$tab_index      = $_fields['tabindex'];
+			$type           = $_fields['type'];
+			$unique_id      = $_fields['unique_id'];
+			$value          = $_fields['value'];
+			$wp_editor_args = $_fields['wpeditor_args'];
+
+			// generate label
+			$label = ! empty($label) ? self::adminLabel($id, $label, $required) : '';
+			// generate field name
+			$name = ! empty($unique_id) ? $field_name . '[' . $unique_id . ']' : $field_name;
+
+			// we determine what we're building based on the type
+			switch ($type) {
+				case 'checkbox':
+				case 'radio':
+					if (is_array($value)) {
+						$c_input = '';
+						foreach ($value as $key => $val) {
+							$c_input .= self::adminMulti(
+								$default,
+								isset($classes[ $key ]) ? $classes[ $key ] : '',
+								$field_name . '_' . $value,
+								$name,
+								$required,
+								$tab_index,
+								$type,
+								$val,
+								isset($labels[ $key ]) ? $labels[ $key ] : ''
+							);
+						}
+						$field = $c_input;
+					} else {
+						$field = self::adminMulti(
+							$default,
+							$class,
+							$id,
+							$name,
+							$required,
+							$tab_index,
+							$type,
+							$value,
+							$_fields['label']
+						);
+					}
+					break;
+
+				case 'hidden':
+					$field = self::adminHidden($class, $id, $name, $value);
+					break;
+
+				case 'select':
+					$options = [];
+					foreach ($value as $key => $val) {
+						$options[ $val ] = isset($labels[ $key ]) ? $labels[ $key ] : '';
+					}
+					$field = self::adminSelect($default, $class, $id, $name, $required, $tab_index, $options);
+					break;
+
+				case 'textarea':
+					$field =
+						self::adminTextarea($class, $dims[0], $id, $name, $required, $dims[1], $tab_index, $value);
+					break;
+
+				case 'wp_editor':
+					$field = self::adminWpEditor(
+						$class,
+						$_fields['id'],
+						$name,
+						$dims[1],
+						$tab_index,
+						$value,
+						$wp_editor_args
+					);
+					break;
+
+				default:
+					$field = self::adminText($class, $id, $name, $required, $tab_index, $value);
+			}
+
+			$form_fields[ $field_name ] = ['label' => $label, 'field' => $field . $extra_desc];
+		}
+
+		return $form_fields;
+	}
+
+
+	/**
+	 * @param string $class
+	 * @param string $id
+	 * @param string $name
+	 * @param string $value
+	 * @return string
+	 * @since   4.10.14.p
+	 */
+	private static function adminHidden($class, $id, $name, $value)
+	{
+		$id    = esc_attr($id);
+		$name  = esc_attr($name);
+		$class = esc_attr($class);
+		return "
         <input name='{$name}' type='hidden' id='{$id}' class='{$class}' value='{$value}' />";
-    }
-
-
-    /**
-     * @param string $id
-     * @param string $label
-     * @param string $required
-     * @return string
-     * @since   4.10.14.p
-     */
-    private static function adminLabel($id, $label, $required)
-    {
-        $id       = esc_attr($id);
-        $label    = esc_html($label);
-        $required = filter_var($required, FILTER_VALIDATE_BOOLEAN) ? " <span>*</span>" : '';
-        return "<label for='{$id}'>{$label}{$required}</label>";
-    }
-
-
-    /**
-     * @param string $default
-     * @param string $class
-     * @param string $id
-     * @param string $name
-     * @param string $required
-     * @param int    $tab_index
-     * @param string $type
-     * @param string $value
-     * @param string $label
-     * @return string
-     * @since   4.10.14.p
-     */
-    private static function adminMulti($default, $class, $id, $name, $required, $tab_index, $type, $value, $label = '')
-    {
-        $id        = esc_attr($id);
-        $name      = esc_attr($name);
-        $class     = esc_attr($class);
-        $tab_index = absint($tab_index);
-        $checked   = ! empty($default) && $default == $value ? 'checked ' : '';
-        $required  = filter_var($required, FILTER_VALIDATE_BOOLEAN) ? 'required' : '';
-        $input     = "
+	}
+
+
+	/**
+	 * @param string $id
+	 * @param string $label
+	 * @param string $required
+	 * @return string
+	 * @since   4.10.14.p
+	 */
+	private static function adminLabel($id, $label, $required)
+	{
+		$id       = esc_attr($id);
+		$label    = esc_html($label);
+		$required = filter_var($required, FILTER_VALIDATE_BOOLEAN) ? " <span>*</span>" : '';
+		return "<label for='{$id}'>{$label}{$required}</label>";
+	}
+
+
+	/**
+	 * @param string $default
+	 * @param string $class
+	 * @param string $id
+	 * @param string $name
+	 * @param string $required
+	 * @param int    $tab_index
+	 * @param string $type
+	 * @param string $value
+	 * @param string $label
+	 * @return string
+	 * @since   4.10.14.p
+	 */
+	private static function adminMulti($default, $class, $id, $name, $required, $tab_index, $type, $value, $label = '')
+	{
+		$id        = esc_attr($id);
+		$name      = esc_attr($name);
+		$class     = esc_attr($class);
+		$tab_index = absint($tab_index);
+		$checked   = ! empty($default) && $default == $value ? 'checked ' : '';
+		$required  = filter_var($required, FILTER_VALIDATE_BOOLEAN) ? 'required' : '';
+		$input     = "
         <input name='{$name}[]' type='{$type}' id='{$id}' class='{$class}' value='{$value}' {$checked} {$required} tabindex='{$tab_index}'/>";
-        if ($label === '') {
-            return $input;
-        }
-        $label = esc_html($label);
-        $label_class = self::appendInputSizeClass('', $label);
-        $label_class = $label_class ? ' class="' . $label_class . '"' : '';
-        return "
+		if ($label === '') {
+			return $input;
+		}
+		$label = esc_html($label);
+		$label_class = self::appendInputSizeClass('', $label);
+		$label_class = $label_class ? ' class="' . $label_class . '"' : '';
+		return "
         <label for='$id'{$label_class}>
             {$input}
             {$label}
         </label>";
-    }
-
-
-    /**
-     * @param string $default
-     * @param string $class
-     * @param string $id
-     * @param string $name
-     * @param string $required
-     * @param int    $tab_index
-     * @param array  $options
-     * @return string
-     * @since   4.10.14.p
-     */
-    private static function adminSelect($default, $class, $id, $name, $required, $tab_index, $options = [])
-    {
-        $options_array = [];
-        foreach ($options as $value => $label) {
-            $selected        = ! empty($default) && $default == $value ? 'selected' : '';
-            $value           = esc_attr($value);
-            $label           = wp_strip_all_tags($label);
-            $options_array[] = "<option value='{$value}' {$selected}>{$label}</option>";
-        }
-        $options_html = implode("\n", $options_array);
-        $id           = esc_attr($id);
-        $name         = esc_attr($name);
-        $class        = esc_attr($class);
-        $tab_index    = absint($tab_index);
-        $required     = filter_var($required, FILTER_VALIDATE_BOOLEAN) ? 'required' : '';
-
-        $class = self::appendInputSizeClass($class, $options);
-
-        return "
+	}
+
+
+	/**
+	 * @param string $default
+	 * @param string $class
+	 * @param string $id
+	 * @param string $name
+	 * @param string $required
+	 * @param int    $tab_index
+	 * @param array  $options
+	 * @return string
+	 * @since   4.10.14.p
+	 */
+	private static function adminSelect($default, $class, $id, $name, $required, $tab_index, $options = [])
+	{
+		$options_array = [];
+		foreach ($options as $value => $label) {
+			$selected        = ! empty($default) && $default == $value ? 'selected' : '';
+			$value           = esc_attr($value);
+			$label           = wp_strip_all_tags($label);
+			$options_array[] = "<option value='{$value}' {$selected}>{$label}</option>";
+		}
+		$options_html = implode("\n", $options_array);
+		$id           = esc_attr($id);
+		$name         = esc_attr($name);
+		$class        = esc_attr($class);
+		$tab_index    = absint($tab_index);
+		$required     = filter_var($required, FILTER_VALIDATE_BOOLEAN) ? 'required' : '';
+
+		$class = self::appendInputSizeClass($class, $options);
+
+		return "
         <select name='{$name}' id='{$id}' class='{$class}' {$required} tabindex='{$tab_index}'>
             {$options_html}
         </select>";
-    }
-
-
-    /**
-     * @param string $class
-     * @param string $id
-     * @param string $name
-     * @param string $required
-     * @param int    $tab_index
-     * @param string $value
-     * @return string
-     * @since   4.10.14.p
-     */
-    private static function adminText($class, $id, $name, $required, $tab_index, $value)
-    {
-        $id        = esc_attr($id);
-        $name      = esc_attr($name);
-        $class     = esc_attr($class);
-        $tab_index = absint($tab_index);
-        $required  = filter_var($required, FILTER_VALIDATE_BOOLEAN) ? 'required' : '';
-        $class     = self::appendInputSizeClass($class, $value);
-        $value     = esc_attr($value);
-        return "
+	}
+
+
+	/**
+	 * @param string $class
+	 * @param string $id
+	 * @param string $name
+	 * @param string $required
+	 * @param int    $tab_index
+	 * @param string $value
+	 * @return string
+	 * @since   4.10.14.p
+	 */
+	private static function adminText($class, $id, $name, $required, $tab_index, $value)
+	{
+		$id        = esc_attr($id);
+		$name      = esc_attr($name);
+		$class     = esc_attr($class);
+		$tab_index = absint($tab_index);
+		$required  = filter_var($required, FILTER_VALIDATE_BOOLEAN) ? 'required' : '';
+		$class     = self::appendInputSizeClass($class, $value);
+		$value     = esc_attr($value);
+		return "
         <input name='{$name}' type='text' id='{$id}' class='{$class}' value='{$value}' {$required} tabindex='{$tab_index}'/>";
-    }
-
-
-    /**
-     * @param string $class
-     * @param int    $cols
-     * @param string $id
-     * @param string $name
-     * @param string $required
-     * @param int    $rows
-     * @param int    $tab_index
-     * @param string $value
-     * @return string
-     * @since   4.10.14.p
-     */
-    private static function adminTextarea($class, $cols, $id, $name, $required, $rows, $tab_index, $value)
-    {
-        $id        = esc_attr($id);
-        $name      = esc_attr($name);
-        $class     = esc_attr($class);
-        $cols      = absint($cols);
-        $rows      = absint($rows);
-        $value     = esc_textarea($value);
-        $tab_index = absint($tab_index);
-        $required  = filter_var($required, FILTER_VALIDATE_BOOLEAN) ? 'required' : '';
-        return "
+	}
+
+
+	/**
+	 * @param string $class
+	 * @param int    $cols
+	 * @param string $id
+	 * @param string $name
+	 * @param string $required
+	 * @param int    $rows
+	 * @param int    $tab_index
+	 * @param string $value
+	 * @return string
+	 * @since   4.10.14.p
+	 */
+	private static function adminTextarea($class, $cols, $id, $name, $required, $rows, $tab_index, $value)
+	{
+		$id        = esc_attr($id);
+		$name      = esc_attr($name);
+		$class     = esc_attr($class);
+		$cols      = absint($cols);
+		$rows      = absint($rows);
+		$value     = esc_textarea($value);
+		$tab_index = absint($tab_index);
+		$required  = filter_var($required, FILTER_VALIDATE_BOOLEAN) ? 'required' : '';
+		return "
         <textarea name='{$name}' id='{$id}' class='{$class}' rows='{$rows}' cols='{$cols}' {$required} tabindex='{$tab_index}'>{$value}</textarea>";
-    }
-
-
-    /**
-     * @param string $class
-     * @param string $id
-     * @param string $name
-     * @param int    $rows
-     * @param int    $tab_index
-     * @param string $value
-     * @param array  $wp_editor_args
-     * @return false|string
-     * @since   4.10.14.p
-     */
-    private static function adminWpEditor($class, $id, $name, $rows, $tab_index, $value, $wp_editor_args = [])
-    {
-        $editor_settings = $wp_editor_args + [
-                'textarea_name' => esc_attr($name),
-                'textarea_rows' => absint($rows),
-                'editor_class'  => esc_attr($class),
-                'tabindex'      => absint($tab_index),
-            ];
-        ob_start();
-        wp_editor($value, esc_attr($id), $editor_settings);
-        return ob_get_clean();
-    }
-
-
-    /**
-     * espresso admin page select_input
-     * Turns an array into a select fields
-     *
-     * @static
-     * @access public
-     * @param string  $name       field name
-     * @param array   $values     option values, numbered array starting at 0, where each value is an array with a key
-     *                            'text' (meaning text to display' and 'id' (meaning the internal value) eg:
-     *                            array(1=>array('text'=>'Monday','id'=>1),2=>array('text'=>'Tuesday','id'=>2)...). or
-     *                            as an array of key-value pairs, where the key is to be used for the select input's
-     *                            name, and the value will be the text shown to the user.  Optionally you can also
-     *                            include an additional key of "class" which will add a specific class to the option
-     *                            for that value.
-     * @param string  $default    default value
-     * @param string  $parameters extra parameters
-     * @param string  $class      css class
-     * @param boolean $autosize   whether to autosize the select or not
-     * @return string              html string for the select input
-     */
-    public static function select_input(
-        $name,
-        $values,
-        $default = '',
-        $parameters = '',
-        $class = '',
-        $autosize = true
-    ) {
-        // if $values was submitted in the wrong format, convert it over
-        if (! empty($values) && (! array_key_exists(0, $values) || ! is_array($values[0]))) {
-            $converted_values = [];
-            foreach ($values as $id => $text) {
-                $converted_values[] = ['id' => $id, 'text' => $text];
-            }
-            $values = $converted_values;
-        }
-
-        $field =
-            '<select id="' . EEH_Formatter::ee_tep_output_string($name)
-            . '" name="' . EEH_Formatter::ee_tep_output_string($name)
-            . '"';
-
-        if (EEH_Formatter::ee_tep_not_null($parameters)) {
-            $field .= ' ' . $parameters;
-        }
-        $class = $autosize ? self::appendInputSizeClass($class, $values) : '';
-
-        $field .= ' class="' . $class . '">';
-
-        if (empty($default) && isset($GLOBALS[ $name ])) {
-            $default = stripslashes($GLOBALS[ $name ]);
-        }
-
-        $field .= self::selectInputOption($values, $default);
-        $field .= '</select>';
-
-        return $field;
-    }
-
-
-    private static function selectInputOption(array $values, $default): string
-    {
-        if (isset($values['id'], $values['text'])) {
-            $id = is_scalar($values['id']) ? $values['id'] : '';
-            $text = is_scalar($values['text']) ? $values['text'] : '';
-            $selected = $default == $values['id'] ? ' selected = "selected"' : '';
-            $html_class = isset($values['class']) ? ' class="' . $values['class'] . '"' : '';
-            return "<option value='{$id}'{$selected}{$html_class}>{$text}</option>";
-        }
-        $options = '';
-        foreach ($values as $value) {
-            $options .= self::selectInputOption($value, $default);
-        }
-        return $options;
-    }
-
-
-    /**
-     * @param mixed $value
-     * @return int
-     * @since   5.0.0.p
-     */
-    private static function getInputValueLength($value): int
-    {
-        if ($value instanceof EE_Question_Option) {
-            return self::getInputValueLength($value->desc());
-        }
-        if (is_array($value)) {
-            $chars = 0;
-            foreach ($value as $val) {
-                $length = self::getInputValueLength($val);
-                $chars = max($length, $chars);
-            }
-            return $chars;
-        }
-        // not a primitive? return something big
-        if (! is_scalar($value)) {
-            return 500;
-        }
-        return strlen((string) $value);
-    }
-
-
-    /**
-     * @param string $class
-     * @param mixed $value
-     * @return string
-     * @since   5.0.0.p
-     */
-    private static function appendInputSizeClass(string $class, $value): string
-    {
-        if (strpos($class, 'ee-input-width--') !== false) {
-            return $class;
-        }
-        $chars = self::getInputValueLength($value);
-        if ($chars && $chars < 5) {
-            return "{$class} ee-input-width--tiny";
-        }
-        if ($chars && $chars < 25) {
-            return "{$class} ee-input-width--small";
-        }
-        if ($chars && $chars > 100) {
-            return "{$class} ee-input-width--big";
-        }
-        return "{$class} ee-input-width--reg";
-    }
-
-
-    /**
-     * generate_question_groups_html
-     *
-     * @param array  $question_groups
-     * @param string $group_wrapper
-     * @return string HTML
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function generate_question_groups_html($question_groups = [], $group_wrapper = 'fieldset')
-    {
-
-        $html                            = '';
-        $before_question_group_questions =
-            apply_filters('FHEE__EEH_Form_Fields__generate_question_groups_html__before_question_group_questions', '');
-        $after_question_group_questions  =
-            apply_filters('FHEE__EEH_Form_Fields__generate_question_groups_html__after_question_group_questions', '');
-
-        if (! empty($question_groups)) {
-            // loop thru question groups
-            foreach ($question_groups as $QSG) {
-                // check that questions exist
-                if (! empty($QSG['QSG_questions'])) {
-                    // use fieldsets
-                    $html .= "\n\t"
-                             . '<'
-                             . $group_wrapper
-                             . ' class="espresso-question-group-wrap" id="'
-                             . $QSG['QSG_identifier']
-                             . '">';
-                    // group_name
-                    $html .= $QSG['QSG_show_group_name']
-                        ? "\n\t\t"
-                          . '<h5 class="espresso-question-group-title-h5 section-title">'
-                          . self::prep_answer($QSG['QSG_name'])
-                          . '</h5>'
-                        : '';
-                    // group_desc
-                    $html .= $QSG['QSG_show_group_desc'] && ! empty($QSG['QSG_desc'])
-                        ? '<div class="espresso-question-group-desc-pg">'
-                          . self::prep_answer($QSG['QSG_desc'])
-                          . '</div>'
-                        : '';
-
-                    $html .= $before_question_group_questions;
-                    // loop thru questions
-                    foreach ($QSG['QSG_questions'] as $question) {
-                        $QFI  = new EE_Question_Form_Input(
-                            $question['qst_obj'],
-                            $question['ans_obj'],
-                            $question
-                        );
-                        $html .= self::generate_form_input($QFI);
-                    }
-                    $html .= $after_question_group_questions;
-                    $html .= "\n\t" . '</' . $group_wrapper . '>';
-                }
-            }
-        }
-
-        return $html;
-    }
-
-
-    /**
-     * generate_question_groups_html
-     *
-     * @param array  $question_groups
-     * @param array  $q_meta
-     * @param bool   $from_admin
-     * @param string $group_wrapper
-     * @return string HTML
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function generate_question_groups_html2(
-        $question_groups = [],
-        $q_meta = [],
-        $from_admin = false,
-        $group_wrapper = 'fieldset'
-    ) {
-
-        $html                            = '';
-        $before_question_group_questions =
-            apply_filters('FHEE__EEH_Form_Fields__generate_question_groups_html__before_question_group_questions', '');
-        $after_question_group_questions  =
-            apply_filters('FHEE__EEH_Form_Fields__generate_question_groups_html__after_question_group_questions', '');
-
-        $default_q_meta = [
-            'att_nmbr'    => 1,
-            'ticket_id'   => '',
-            'input_name'  => '',
-            'input_id'    => '',
-            'input_class' => '',
-        ];
-        $q_meta         = array_merge($default_q_meta, $q_meta);
-
-        if (! empty($question_groups)) {
-            // loop thru question groups
-            foreach ($question_groups as $QSG) {
-                if ($QSG instanceof EE_Question_Group) {
-                    // check that questions exist
-
-                    $where = ['QST_deleted' => 0];
-                    if (! $from_admin) {
-                        $where['QST_admin_only'] = 0;
-                    }
-                    $questions =
-                        $QSG->questions([$where, 'order_by' => ['Question_Group_Question.QGQ_order' => 'ASC']]);
-                    if (! empty($questions)) {
-                        // use fieldsets
-                        $html .= "\n\t"
-                                 . '<' . $group_wrapper . ' class="espresso-question-group-wrap" '
-                                 . 'id="' . $QSG->get('QSG_identifier') . '">';
-                        // group_name
-                        if ($QSG->show_group_name()) {
-                            $html .= "\n\t\t"
-                                     . '<h5 class="espresso-question-group-title-h5 section-title">'
-                                     . $QSG->get_pretty('QSG_name')
-                                     . '</h5>';
-                        }
-                        // group_desc
-                        if ($QSG->show_group_desc()) {
-                            $html .= '<div class="espresso-question-group-desc-pg">'
-                                     . $QSG->get_pretty('QSG_desc')
-                                     . '</div>';
-                        }
-
-                        $html .= $before_question_group_questions;
-                        // loop thru questions
-                        foreach ($questions as $QST) {
-                            $qstn_id = $QST->is_system_question() ? $QST->system_ID() : $QST->ID();
-
-                            $answer = null;
-
-                            /** @var RequestInterface $request */
-                            $request      = LoaderFactory::getLoader()->getShared(RequestInterface::class);
-                            $request_qstn = $request->getRequestParam('qstn', [], 'string', true);
-                            if (! empty($request_qstn) && isset($q_meta['input_id']) && isset($q_meta['att_nmbr'])) {
-                                // check for answer in $request_qstn in case we are reprocessing a form after an error
-                                if (isset($request_qstn[ $q_meta['input_id'] ][ $qstn_id ])) {
-                                    $answer = is_array($request_qstn[ $q_meta['input_id'] ][ $qstn_id ])
-                                        ? $request_qstn[ $q_meta['input_id'] ][ $qstn_id ]
-                                        : sanitize_text_field($request_qstn[ $q_meta['input_id'] ][ $qstn_id ]);
-                                }
-                            } elseif (isset($q_meta['attendee']) && $q_meta['attendee']) {
-                                // attendee data from the session
-                                $answer =
-                                    isset($q_meta['attendee'][ $qstn_id ]) ? $q_meta['attendee'][ $qstn_id ] : null;
-                            }
-
-
-                            $QFI  = new EE_Question_Form_Input(
-                                $QST,
-                                EE_Answer::new_instance(
-                                    [
-                                        'ANS_ID'    => 0,
-                                        'QST_ID'    => 0,
-                                        'REG_ID'    => 0,
-                                        'ANS_value' => $answer,
-                                    ]
-                                ),
-                                $q_meta
-                            );
-                            $html .= self::generate_form_input($QFI);
-                        }
-                        $html .= $after_question_group_questions;
-                        $html .= "\n\t" . '</' . $group_wrapper . '>';
-                    }
-                }
-            }
-        }
-        return $html;
-    }
-
-
-    /**
-     * generate_form_input
-     *
-     * @param EE_Question_Form_Input $QFI
-     * @return string HTML
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function generate_form_input(EE_Question_Form_Input $QFI)
-    {
-        if (isset($QFI->QST_admin_only) && $QFI->QST_admin_only && ! is_admin()) {
-            return '';
-        }
-        /** @var RequestInterface $request */
-        $request = LoaderFactory::getLoader()->getShared(RequestInterface::class);
-
-        $QFI = self::_load_system_dropdowns($QFI);
-        $QFI = self::_load_specialized_dropdowns($QFI);
-
-        // we also need to verify
-
-        $display_text = (string) $QFI->get('QST_display_text');
-        $input_name   = (string) $QFI->get('QST_input_name');
-        $answer       = $request->getRequestParam($input_name, $QFI->get('ANS_value'));
-        $input_id     = (string) $QFI->get('QST_input_id');
-        $input_class  = (string) $QFI->get('QST_input_class');
-        //      $disabled = $QFI->get('QST_disabled') ? ' disabled="disabled"' : '';
-        $disabled          = (bool) $QFI->get('QST_disabled');
-        $required_label    = apply_filters(' FHEE__EEH_Form_Fields__generate_form_input__required_label', '<em>*</em>');
-        $QST_required      = (bool) $QFI->get('QST_required');
-        $required          = $QST_required
-            ? ['label' => $required_label, 'class' => 'required needs-value', 'title' => $QST_required]
-            : [];
-        $use_html_entities = $QFI->get_meta('htmlentities');
-        $required_text     = (string) $QFI->get('QST_required_text') !== ''
-            ? (string) $QFI->get('QST_required_text')
-            : esc_html__('This field is required', 'event_espresso');
-        $required_text     = $QST_required
-            ? "\n\t\t\t"
-              . '<div class="required-text hidden">'
-              . self::prep_answer($required_text, $use_html_entities)
-              . '</div>'
-            : '';
-        $label_class       = (string) $QFI->get('label_class');
-        $label_class       = $label_class ? "{$label_class} espresso-form-input-lbl" : 'espresso-form-input-lbl';
-        $QST_options       = $QFI->options(true, $answer);
-        $options           = is_array($QST_options) ? self::prep_answer_options($QST_options) : [];
-        $system_ID         = (string) $QFI->get('QST_system');
-        $label_b4          = (bool) $QFI->get_meta('label_b4');
-        $use_desc_4_label  = (bool) $QFI->get_meta('use_desc_4_label');
-        $add_mobile_label  = (bool) $QFI->get_meta('add_mobile_label');
-
-
-        switch ($QFI->get('QST_type')) {
-            case 'TEXTAREA':
-                return EEH_Form_Fields::textarea(
-                    $display_text,
-                    $answer,
-                    $input_name,
-                    $input_id,
-                    $input_class,
-                    [],
-                    $required,
-                    $required_text,
-                    $label_class,
-                    $disabled,
-                    $system_ID,
-                    $use_html_entities,
-                    $add_mobile_label
-                );
-
-            case 'DROPDOWN':
-                return EEH_Form_Fields::select(
-                    $display_text,
-                    $answer,
-                    $options,
-                    $input_name,
-                    $input_id,
-                    $input_class,
-                    $required,
-                    $required_text,
-                    $label_class,
-                    $disabled,
-                    $system_ID,
-                    $use_html_entities,
-                    true,
-                    $add_mobile_label
-                );
-
-
-            case 'RADIO_BTN':
-                return EEH_Form_Fields::radio(
-                    $display_text,
-                    $answer,
-                    $options,
-                    $input_name,
-                    $input_id,
-                    $input_class,
-                    $required,
-                    $required_text,
-                    $label_class,
-                    $disabled,
-                    $system_ID,
-                    $use_html_entities,
-                    $label_b4,
-                    $use_desc_4_label,
-                    $add_mobile_label
-                );
-
-            case 'CHECKBOX':
-                return EEH_Form_Fields::checkbox(
-                    $display_text,
-                    $answer,
-                    $options,
-                    $input_name,
-                    $input_id,
-                    $input_class,
-                    $required,
-                    $required_text,
-                    $label_class,
-                    $disabled,
-                    $label_b4,
-                    $system_ID,
-                    $use_html_entities,
-                    $add_mobile_label
-                );
-
-            case 'DATE':
-                return EEH_Form_Fields::datepicker(
-                    $display_text,
-                    $answer,
-                    $input_name,
-                    $input_id,
-                    $input_class,
-                    $required,
-                    $required_text,
-                    $label_class,
-                    $disabled,
-                    $system_ID,
-                    $use_html_entities,
-                    $add_mobile_label
-                );
-
-            case 'TEXT':
-            default:
-                return EEH_Form_Fields::text(
-                    $display_text,
-                    $answer,
-                    $input_name,
-                    $input_id,
-                    $input_class,
-                    $required,
-                    $required_text,
-                    $label_class,
-                    $disabled,
-                    $system_ID,
-                    $use_html_entities,
-                    $add_mobile_label
-                );
-        }
-    }
-
-
-    public static function label(
-        string $question,
-        string $required_text = '',
-        string $required_label = '',
-        string $name = '',
-        string $label_class = '',
-        bool $filter = true
-    ): string {
-        $for   = ! empty($name) ? " for='{$name}'" : '';
-        $class = ! empty($label_class) ? " class='{$label_class}'" : '';
-        $label = self::prep_question($question) . $required_label;
-        $label_html = "
+	}
+
+
+	/**
+	 * @param string $class
+	 * @param string $id
+	 * @param string $name
+	 * @param int    $rows
+	 * @param int    $tab_index
+	 * @param string $value
+	 * @param array  $wp_editor_args
+	 * @return false|string
+	 * @since   4.10.14.p
+	 */
+	private static function adminWpEditor($class, $id, $name, $rows, $tab_index, $value, $wp_editor_args = [])
+	{
+		$editor_settings = $wp_editor_args + [
+				'textarea_name' => esc_attr($name),
+				'textarea_rows' => absint($rows),
+				'editor_class'  => esc_attr($class),
+				'tabindex'      => absint($tab_index),
+			];
+		ob_start();
+		wp_editor($value, esc_attr($id), $editor_settings);
+		return ob_get_clean();
+	}
+
+
+	/**
+	 * espresso admin page select_input
+	 * Turns an array into a select fields
+	 *
+	 * @static
+	 * @access public
+	 * @param string  $name       field name
+	 * @param array   $values     option values, numbered array starting at 0, where each value is an array with a key
+	 *                            'text' (meaning text to display' and 'id' (meaning the internal value) eg:
+	 *                            array(1=>array('text'=>'Monday','id'=>1),2=>array('text'=>'Tuesday','id'=>2)...). or
+	 *                            as an array of key-value pairs, where the key is to be used for the select input's
+	 *                            name, and the value will be the text shown to the user.  Optionally you can also
+	 *                            include an additional key of "class" which will add a specific class to the option
+	 *                            for that value.
+	 * @param string  $default    default value
+	 * @param string  $parameters extra parameters
+	 * @param string  $class      css class
+	 * @param boolean $autosize   whether to autosize the select or not
+	 * @return string              html string for the select input
+	 */
+	public static function select_input(
+		$name,
+		$values,
+		$default = '',
+		$parameters = '',
+		$class = '',
+		$autosize = true
+	) {
+		// if $values was submitted in the wrong format, convert it over
+		if (! empty($values) && (! array_key_exists(0, $values) || ! is_array($values[0]))) {
+			$converted_values = [];
+			foreach ($values as $id => $text) {
+				$converted_values[] = ['id' => $id, 'text' => $text];
+			}
+			$values = $converted_values;
+		}
+
+		$field =
+			'<select id="' . EEH_Formatter::ee_tep_output_string($name)
+			. '" name="' . EEH_Formatter::ee_tep_output_string($name)
+			. '"';
+
+		if (EEH_Formatter::ee_tep_not_null($parameters)) {
+			$field .= ' ' . $parameters;
+		}
+		$class = $autosize ? self::appendInputSizeClass($class, $values) : '';
+
+		$field .= ' class="' . $class . '">';
+
+		if (empty($default) && isset($GLOBALS[ $name ])) {
+			$default = stripslashes($GLOBALS[ $name ]);
+		}
+
+		$field .= self::selectInputOption($values, $default);
+		$field .= '</select>';
+
+		return $field;
+	}
+
+
+	private static function selectInputOption(array $values, $default): string
+	{
+		if (isset($values['id'], $values['text'])) {
+			$id = is_scalar($values['id']) ? $values['id'] : '';
+			$text = is_scalar($values['text']) ? $values['text'] : '';
+			$selected = $default == $values['id'] ? ' selected = "selected"' : '';
+			$html_class = isset($values['class']) ? ' class="' . $values['class'] . '"' : '';
+			return "<option value='{$id}'{$selected}{$html_class}>{$text}</option>";
+		}
+		$options = '';
+		foreach ($values as $value) {
+			$options .= self::selectInputOption($value, $default);
+		}
+		return $options;
+	}
+
+
+	/**
+	 * @param mixed $value
+	 * @return int
+	 * @since   5.0.0.p
+	 */
+	private static function getInputValueLength($value): int
+	{
+		if ($value instanceof EE_Question_Option) {
+			return self::getInputValueLength($value->desc());
+		}
+		if (is_array($value)) {
+			$chars = 0;
+			foreach ($value as $val) {
+				$length = self::getInputValueLength($val);
+				$chars = max($length, $chars);
+			}
+			return $chars;
+		}
+		// not a primitive? return something big
+		if (! is_scalar($value)) {
+			return 500;
+		}
+		return strlen((string) $value);
+	}
+
+
+	/**
+	 * @param string $class
+	 * @param mixed $value
+	 * @return string
+	 * @since   5.0.0.p
+	 */
+	private static function appendInputSizeClass(string $class, $value): string
+	{
+		if (strpos($class, 'ee-input-width--') !== false) {
+			return $class;
+		}
+		$chars = self::getInputValueLength($value);
+		if ($chars && $chars < 5) {
+			return "{$class} ee-input-width--tiny";
+		}
+		if ($chars && $chars < 25) {
+			return "{$class} ee-input-width--small";
+		}
+		if ($chars && $chars > 100) {
+			return "{$class} ee-input-width--big";
+		}
+		return "{$class} ee-input-width--reg";
+	}
+
+
+	/**
+	 * generate_question_groups_html
+	 *
+	 * @param array  $question_groups
+	 * @param string $group_wrapper
+	 * @return string HTML
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function generate_question_groups_html($question_groups = [], $group_wrapper = 'fieldset')
+	{
+
+		$html                            = '';
+		$before_question_group_questions =
+			apply_filters('FHEE__EEH_Form_Fields__generate_question_groups_html__before_question_group_questions', '');
+		$after_question_group_questions  =
+			apply_filters('FHEE__EEH_Form_Fields__generate_question_groups_html__after_question_group_questions', '');
+
+		if (! empty($question_groups)) {
+			// loop thru question groups
+			foreach ($question_groups as $QSG) {
+				// check that questions exist
+				if (! empty($QSG['QSG_questions'])) {
+					// use fieldsets
+					$html .= "\n\t"
+							 . '<'
+							 . $group_wrapper
+							 . ' class="espresso-question-group-wrap" id="'
+							 . $QSG['QSG_identifier']
+							 . '">';
+					// group_name
+					$html .= $QSG['QSG_show_group_name']
+						? "\n\t\t"
+						  . '<h5 class="espresso-question-group-title-h5 section-title">'
+						  . self::prep_answer($QSG['QSG_name'])
+						  . '</h5>'
+						: '';
+					// group_desc
+					$html .= $QSG['QSG_show_group_desc'] && ! empty($QSG['QSG_desc'])
+						? '<div class="espresso-question-group-desc-pg">'
+						  . self::prep_answer($QSG['QSG_desc'])
+						  . '</div>'
+						: '';
+
+					$html .= $before_question_group_questions;
+					// loop thru questions
+					foreach ($QSG['QSG_questions'] as $question) {
+						$QFI  = new EE_Question_Form_Input(
+							$question['qst_obj'],
+							$question['ans_obj'],
+							$question
+						);
+						$html .= self::generate_form_input($QFI);
+					}
+					$html .= $after_question_group_questions;
+					$html .= "\n\t" . '</' . $group_wrapper . '>';
+				}
+			}
+		}
+
+		return $html;
+	}
+
+
+	/**
+	 * generate_question_groups_html
+	 *
+	 * @param array  $question_groups
+	 * @param array  $q_meta
+	 * @param bool   $from_admin
+	 * @param string $group_wrapper
+	 * @return string HTML
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function generate_question_groups_html2(
+		$question_groups = [],
+		$q_meta = [],
+		$from_admin = false,
+		$group_wrapper = 'fieldset'
+	) {
+
+		$html                            = '';
+		$before_question_group_questions =
+			apply_filters('FHEE__EEH_Form_Fields__generate_question_groups_html__before_question_group_questions', '');
+		$after_question_group_questions  =
+			apply_filters('FHEE__EEH_Form_Fields__generate_question_groups_html__after_question_group_questions', '');
+
+		$default_q_meta = [
+			'att_nmbr'    => 1,
+			'ticket_id'   => '',
+			'input_name'  => '',
+			'input_id'    => '',
+			'input_class' => '',
+		];
+		$q_meta         = array_merge($default_q_meta, $q_meta);
+
+		if (! empty($question_groups)) {
+			// loop thru question groups
+			foreach ($question_groups as $QSG) {
+				if ($QSG instanceof EE_Question_Group) {
+					// check that questions exist
+
+					$where = ['QST_deleted' => 0];
+					if (! $from_admin) {
+						$where['QST_admin_only'] = 0;
+					}
+					$questions =
+						$QSG->questions([$where, 'order_by' => ['Question_Group_Question.QGQ_order' => 'ASC']]);
+					if (! empty($questions)) {
+						// use fieldsets
+						$html .= "\n\t"
+								 . '<' . $group_wrapper . ' class="espresso-question-group-wrap" '
+								 . 'id="' . $QSG->get('QSG_identifier') . '">';
+						// group_name
+						if ($QSG->show_group_name()) {
+							$html .= "\n\t\t"
+									 . '<h5 class="espresso-question-group-title-h5 section-title">'
+									 . $QSG->get_pretty('QSG_name')
+									 . '</h5>';
+						}
+						// group_desc
+						if ($QSG->show_group_desc()) {
+							$html .= '<div class="espresso-question-group-desc-pg">'
+									 . $QSG->get_pretty('QSG_desc')
+									 . '</div>';
+						}
+
+						$html .= $before_question_group_questions;
+						// loop thru questions
+						foreach ($questions as $QST) {
+							$qstn_id = $QST->is_system_question() ? $QST->system_ID() : $QST->ID();
+
+							$answer = null;
+
+							/** @var RequestInterface $request */
+							$request      = LoaderFactory::getLoader()->getShared(RequestInterface::class);
+							$request_qstn = $request->getRequestParam('qstn', [], 'string', true);
+							if (! empty($request_qstn) && isset($q_meta['input_id']) && isset($q_meta['att_nmbr'])) {
+								// check for answer in $request_qstn in case we are reprocessing a form after an error
+								if (isset($request_qstn[ $q_meta['input_id'] ][ $qstn_id ])) {
+									$answer = is_array($request_qstn[ $q_meta['input_id'] ][ $qstn_id ])
+										? $request_qstn[ $q_meta['input_id'] ][ $qstn_id ]
+										: sanitize_text_field($request_qstn[ $q_meta['input_id'] ][ $qstn_id ]);
+								}
+							} elseif (isset($q_meta['attendee']) && $q_meta['attendee']) {
+								// attendee data from the session
+								$answer =
+									isset($q_meta['attendee'][ $qstn_id ]) ? $q_meta['attendee'][ $qstn_id ] : null;
+							}
+
+
+							$QFI  = new EE_Question_Form_Input(
+								$QST,
+								EE_Answer::new_instance(
+									[
+										'ANS_ID'    => 0,
+										'QST_ID'    => 0,
+										'REG_ID'    => 0,
+										'ANS_value' => $answer,
+									]
+								),
+								$q_meta
+							);
+							$html .= self::generate_form_input($QFI);
+						}
+						$html .= $after_question_group_questions;
+						$html .= "\n\t" . '</' . $group_wrapper . '>';
+					}
+				}
+			}
+		}
+		return $html;
+	}
+
+
+	/**
+	 * generate_form_input
+	 *
+	 * @param EE_Question_Form_Input $QFI
+	 * @return string HTML
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function generate_form_input(EE_Question_Form_Input $QFI)
+	{
+		if (isset($QFI->QST_admin_only) && $QFI->QST_admin_only && ! is_admin()) {
+			return '';
+		}
+		/** @var RequestInterface $request */
+		$request = LoaderFactory::getLoader()->getShared(RequestInterface::class);
+
+		$QFI = self::_load_system_dropdowns($QFI);
+		$QFI = self::_load_specialized_dropdowns($QFI);
+
+		// we also need to verify
+
+		$display_text = (string) $QFI->get('QST_display_text');
+		$input_name   = (string) $QFI->get('QST_input_name');
+		$answer       = $request->getRequestParam($input_name, $QFI->get('ANS_value'));
+		$input_id     = (string) $QFI->get('QST_input_id');
+		$input_class  = (string) $QFI->get('QST_input_class');
+		//      $disabled = $QFI->get('QST_disabled') ? ' disabled="disabled"' : '';
+		$disabled          = (bool) $QFI->get('QST_disabled');
+		$required_label    = apply_filters(' FHEE__EEH_Form_Fields__generate_form_input__required_label', '<em>*</em>');
+		$QST_required      = (bool) $QFI->get('QST_required');
+		$required          = $QST_required
+			? ['label' => $required_label, 'class' => 'required needs-value', 'title' => $QST_required]
+			: [];
+		$use_html_entities = $QFI->get_meta('htmlentities');
+		$required_text     = (string) $QFI->get('QST_required_text') !== ''
+			? (string) $QFI->get('QST_required_text')
+			: esc_html__('This field is required', 'event_espresso');
+		$required_text     = $QST_required
+			? "\n\t\t\t"
+			  . '<div class="required-text hidden">'
+			  . self::prep_answer($required_text, $use_html_entities)
+			  . '</div>'
+			: '';
+		$label_class       = (string) $QFI->get('label_class');
+		$label_class       = $label_class ? "{$label_class} espresso-form-input-lbl" : 'espresso-form-input-lbl';
+		$QST_options       = $QFI->options(true, $answer);
+		$options           = is_array($QST_options) ? self::prep_answer_options($QST_options) : [];
+		$system_ID         = (string) $QFI->get('QST_system');
+		$label_b4          = (bool) $QFI->get_meta('label_b4');
+		$use_desc_4_label  = (bool) $QFI->get_meta('use_desc_4_label');
+		$add_mobile_label  = (bool) $QFI->get_meta('add_mobile_label');
+
+
+		switch ($QFI->get('QST_type')) {
+			case 'TEXTAREA':
+				return EEH_Form_Fields::textarea(
+					$display_text,
+					$answer,
+					$input_name,
+					$input_id,
+					$input_class,
+					[],
+					$required,
+					$required_text,
+					$label_class,
+					$disabled,
+					$system_ID,
+					$use_html_entities,
+					$add_mobile_label
+				);
+
+			case 'DROPDOWN':
+				return EEH_Form_Fields::select(
+					$display_text,
+					$answer,
+					$options,
+					$input_name,
+					$input_id,
+					$input_class,
+					$required,
+					$required_text,
+					$label_class,
+					$disabled,
+					$system_ID,
+					$use_html_entities,
+					true,
+					$add_mobile_label
+				);
+
+
+			case 'RADIO_BTN':
+				return EEH_Form_Fields::radio(
+					$display_text,
+					$answer,
+					$options,
+					$input_name,
+					$input_id,
+					$input_class,
+					$required,
+					$required_text,
+					$label_class,
+					$disabled,
+					$system_ID,
+					$use_html_entities,
+					$label_b4,
+					$use_desc_4_label,
+					$add_mobile_label
+				);
+
+			case 'CHECKBOX':
+				return EEH_Form_Fields::checkbox(
+					$display_text,
+					$answer,
+					$options,
+					$input_name,
+					$input_id,
+					$input_class,
+					$required,
+					$required_text,
+					$label_class,
+					$disabled,
+					$label_b4,
+					$system_ID,
+					$use_html_entities,
+					$add_mobile_label
+				);
+
+			case 'DATE':
+				return EEH_Form_Fields::datepicker(
+					$display_text,
+					$answer,
+					$input_name,
+					$input_id,
+					$input_class,
+					$required,
+					$required_text,
+					$label_class,
+					$disabled,
+					$system_ID,
+					$use_html_entities,
+					$add_mobile_label
+				);
+
+			case 'TEXT':
+			default:
+				return EEH_Form_Fields::text(
+					$display_text,
+					$answer,
+					$input_name,
+					$input_id,
+					$input_class,
+					$required,
+					$required_text,
+					$label_class,
+					$disabled,
+					$system_ID,
+					$use_html_entities,
+					$add_mobile_label
+				);
+		}
+	}
+
+
+	public static function label(
+		string $question,
+		string $required_text = '',
+		string $required_label = '',
+		string $name = '',
+		string $label_class = '',
+		bool $filter = true
+	): string {
+		$for   = ! empty($name) ? " for='{$name}'" : '';
+		$class = ! empty($label_class) ? " class='{$label_class}'" : '';
+		$label = self::prep_question($question) . $required_label;
+		$label_html = "
             {$required_text}
             <label{$for}{$class}>{$label}</label>";
-        // filter label but ensure required text comes before it
-        return $filter
-            ? apply_filters('FHEE__EEH_Form_Fields__label_html', $label_html, $required_text)
-            : $label_html;
-    }
-
-
-
-    public static function mobileLabel(
-        bool $add_mobile_label,
-        string $question,
-        string $required_text = '',
-        string $required_label = '',
-        string $label_class = '',
-        string $name = ''
-    ): string {
-        return $add_mobile_label
-            ? self::label($question, $required_text, $required_label, $name, $label_class, false)
-            : '';
-    }
-
-
-    /**
-     * generates HTML for a form text input
-     *
-     * @param string $question    label content
-     * @param string $answer      form input value attribute
-     * @param string $name        form input name attribute
-     * @param string $id          form input css id attribute
-     * @param string $class       form input css class attribute
-     * @param array  $required    'label', 'class', and 'msg' - array of values for required "label" content, css
-     *                            required 'class', and required 'msg' attribute
-     * @param string $label_class css class attribute for the label
-     * @param string $disabled    disabled="disabled" or null
-     * @return string HTML
-     */
-    public static function text(
-        $question = false,
-        $answer = null,
-        $name = false,
-        $id = '',
-        $class = '',
-        $required = false,
-        $required_text = '',
-        $label_class = '',
-        $disabled = false,
-        $system_ID = false,
-        $use_html_entities = true,
-        $add_mobile_label = false,
-        $extra_attributes = ''
-    ) {
-        // need these
-        if (! $question || ! $name) {
-            return null;
-        }
-        // prep the answer
-        $answer = is_array($answer) ? '' : self::prep_answer($answer, $use_html_entities);
-        // prep the required array
-        $required = self::prep_required($required);
-        // set disabled tag
-        $disabled = $answer === null || ! $disabled ? '' : ' disabled="disabled"';
-        // ya gots ta have style man!!!
-        $txt_class = is_admin() ? 'regular-text' : 'espresso-text-inp';
-        $class     = empty($class) ? $txt_class : $class;
-        $class     .= ! empty($system_ID) ? ' ' . $system_ID : '';
-        $class = self::appendInputSizeClass($class, $answer);
-        $class .= ! empty($required['class']) ? ' ' . $required['class'] : '';
-        $extra_attributes = apply_filters('FHEE__EEH_Form_Fields__additional_form_field_attributes', $extra_attributes);
-
-        $label_html = self::label($question, $required_text, $required['label'], $name, $label_class);
-        $mobile_label = self::mobileLabel(
-            $add_mobile_label,
-            $question,
-            $required_text,
-            $required['label'],
-            $label_class,
-            $name
-        );
-
-        $input_html = $mobile_label . '
+		// filter label but ensure required text comes before it
+		return $filter
+			? apply_filters('FHEE__EEH_Form_Fields__label_html', $label_html, $required_text)
+			: $label_html;
+	}
+
+
+
+	public static function mobileLabel(
+		bool $add_mobile_label,
+		string $question,
+		string $required_text = '',
+		string $required_label = '',
+		string $label_class = '',
+		string $name = ''
+	): string {
+		return $add_mobile_label
+			? self::label($question, $required_text, $required_label, $name, $label_class, false)
+			: '';
+	}
+
+
+	/**
+	 * generates HTML for a form text input
+	 *
+	 * @param string $question    label content
+	 * @param string $answer      form input value attribute
+	 * @param string $name        form input name attribute
+	 * @param string $id          form input css id attribute
+	 * @param string $class       form input css class attribute
+	 * @param array  $required    'label', 'class', and 'msg' - array of values for required "label" content, css
+	 *                            required 'class', and required 'msg' attribute
+	 * @param string $label_class css class attribute for the label
+	 * @param string $disabled    disabled="disabled" or null
+	 * @return string HTML
+	 */
+	public static function text(
+		$question = false,
+		$answer = null,
+		$name = false,
+		$id = '',
+		$class = '',
+		$required = false,
+		$required_text = '',
+		$label_class = '',
+		$disabled = false,
+		$system_ID = false,
+		$use_html_entities = true,
+		$add_mobile_label = false,
+		$extra_attributes = ''
+	) {
+		// need these
+		if (! $question || ! $name) {
+			return null;
+		}
+		// prep the answer
+		$answer = is_array($answer) ? '' : self::prep_answer($answer, $use_html_entities);
+		// prep the required array
+		$required = self::prep_required($required);
+		// set disabled tag
+		$disabled = $answer === null || ! $disabled ? '' : ' disabled="disabled"';
+		// ya gots ta have style man!!!
+		$txt_class = is_admin() ? 'regular-text' : 'espresso-text-inp';
+		$class     = empty($class) ? $txt_class : $class;
+		$class     .= ! empty($system_ID) ? ' ' . $system_ID : '';
+		$class = self::appendInputSizeClass($class, $answer);
+		$class .= ! empty($required['class']) ? ' ' . $required['class'] : '';
+		$extra_attributes = apply_filters('FHEE__EEH_Form_Fields__additional_form_field_attributes', $extra_attributes);
+
+		$label_html = self::label($question, $required_text, $required['label'], $name, $label_class);
+		$mobile_label = self::mobileLabel(
+			$add_mobile_label,
+			$question,
+			$required_text,
+			$required['label'],
+			$label_class,
+			$name
+		);
+
+		$input_html = $mobile_label . '
             <input  type="text"
                     name="' . $name . '"
                     id="' . $id . '"
@@ -1086,1034 +1086,1034 @@ 
                     ' . $disabled . ' ' . $extra_attributes . '
             />';
 
-        $input_html = apply_filters('FHEE__EEH_Form_Fields__input_html', $input_html, $label_html, $id);
-        return $label_html . $input_html;
-    }
-
-
-    /**
-     * generates HTML for a form textarea
-     *
-     * @param string $question    label content
-     * @param string $answer      form input value attribute
-     * @param string $name        form input name attribute
-     * @param string $id          form input css id attribute
-     * @param string $class       form input css class attribute
-     * @param array  $dimensions  array of form input rows and cols attributes : array( 'rows' => 3, 'cols' => 40 )
-     * @param array  $required    'label', 'class', and 'msg' - array of values for required "label" content, css
-     *                            required 'class', and required 'msg' attribute
-     * @param string $label_class css class attribute for the label
-     * @param string $disabled    disabled="disabled" or null
-     * @return string HTML
-     */
-    public static function textarea(
-        $question = false,
-        $answer = null,
-        $name = false,
-        $id = '',
-        $class = '',
-        $dimensions = false,
-        $required = false,
-        $required_text = '',
-        $label_class = '',
-        $disabled = false,
-        $system_ID = false,
-        $use_html_entities = true,
-        $add_mobile_label = false
-    ) {
-        // need these
-        if (! $question || ! $name) {
-            return null;
-        }
-        // prep the answer
-        $answer = is_array($answer) ? '' : self::prep_answer($answer, $use_html_entities);
-        // prep the required array
-        $required = self::prep_required($required);
-        // make sure $dimensions is an array
-        $dimensions = is_array($dimensions) ? $dimensions : [];
-        // and set some defaults
-        $dimensions = array_merge(['rows' => 3, 'cols' => 40], $dimensions);
-        // set disabled tag
-        $disabled = $answer === null || ! $disabled ? '' : ' disabled="disabled"';
-        // ya gots ta have style man!!!
-        $class     .= ! empty($system_ID) ? ' ' . $system_ID : '';
-        $class     .= ! empty($required['class']) ? ' ' . $required['class'] : '';
-        $extra     = apply_filters('FHEE__EEH_Form_Fields__additional_form_field_attributes', '');
-
-        $label_html   = self::label($question, $required_text, $required['label'], $name, $label_class);
-        $mobile_label = self::mobileLabel(
-            $add_mobile_label,
-            $question,
-            $required_text,
-            $required['label'],
-            $label_class,
-            $name
-        );
-
-        $input_html = $mobile_label
-            . '<textarea name="' . $name . '" id="' . $id . '" class="' . trim($class) . '" '
-            . 'rows="' . $dimensions['rows'] . '" cols="' . $dimensions['cols'] . '"  '
-            . 'aria-label="' . $required['msg'] . '" ' . $disabled . ' ' . $extra . '>'
-             . esc_textarea($answer)
-              . '</textarea>';
-
-        $input_html = apply_filters('FHEE__EEH_Form_Fields__input_html', $input_html, $label_html, $id);
-        return $label_html . $input_html;
-    }
-
-
-    /**
-     * generates HTML for a form select input
-     *
-     * @param string $question    label content
-     * @param string $answer      form input value attribute
-     * @param array  $options     array of answer options where array key = option value and array value = option
-     *                            display text
-     * @param string $name        form input name attribute
-     * @param string $id          form input css id attribute
-     * @param string $class       form input css class attribute
-     * @param array  $required    'label', 'class', and 'msg' - array of values for required "label" content, css
-     *                            required 'class', and required 'msg' attribute
-     * @param string $label_class css class attribute for the label
-     * @param string $disabled    disabled="disabled" or null
-     * @return string HTML
-     */
-    public static function select(
-        $question = false,
-        $answer = null,
-        $options = false,
-        $name = false,
-        $id = '',
-        $class = '',
-        $required = false,
-        $required_text = '',
-        $label_class = '',
-        $disabled = false,
-        $system_ID = false,
-        $use_html_entities = true,
-        $add_please_select_option = false,
-        $add_mobile_label = false
-    ) {
-
-        // need these
-        if (! $question || ! $name || ! $options || empty($options) || ! is_array($options)) {
-            return null;
-        }
-        // prep the answer
-        $answer = is_array($answer)
-            ? self::prep_answer(array_shift($answer), $use_html_entities)
-            : self::prep_answer($answer, $use_html_entities);
-        // prep the required array
-        $required = self::prep_required($required);
-        // set disabled tag
-        $disabled = $answer === null || ! $disabled ? '' : ' disabled="disabled"';
-        // ya gots ta have style man!!!
-        $class     .= ! empty($system_ID) ? ' ' . $system_ID : '';
-        $class = self::appendInputSizeClass($class, $options);
-        $extra     = apply_filters('FHEE__EEH_Form_Fields__additional_form_field_attributes', '');
-
-        $label_html   = self::label($question, $required_text, $required['label'], $name, $label_class);
-        $mobile_label = self::mobileLabel(
-            $add_mobile_label,
-            $question,
-            $required_text,
-            $required['label'],
-            $label_class,
-            $name
-        );
-
-        $input_html = $mobile_label
-            . '<select name="' . $name . '" id="' . $id . '" class="' . trim($class) . ' ' . $required['class'] . '" '
-            . 'aria-label="' . esc_attr($required['msg']) . '"' . $disabled . ' ' . $extra . '>';
-        // recursively count array elements, to determine total number of options
-        $only_option = count($options, 1) == 1;
-        if (! $only_option) {
-            // if there is NO answer set and there are multiple options to choose from, then set the "please select" message as selected
-            $selected   = $answer === null ? ' selected' : '';
-            $input_html .= $add_please_select_option
-                ? "\n\t\t\t\t"
-                  . '<option value=""' . $selected . '>'
-                  . esc_html__(' - please select - ', 'event_espresso')
-                  . '</option>'
-                : '';
-        }
-        foreach ($options as $key => $value) {
-            // if value is an array, then create option groups, else create regular ol' options
-            $input_html .= is_array($value)
-                ? self::_generate_select_option_group(
-                    $key,
-                    $value,
-                    $answer,
-                    $use_html_entities
-                )
-                : self::_generate_select_option(
-                    $value->value(),
-                    $value->desc(),
-                    $answer,
-                    $only_option,
-                    $use_html_entities
-                );
-        }
-
-        $input_html .= "\n\t\t\t" . '</select>';
-
-        $input_html =
-            apply_filters(
-                'FHEE__EEH_Form_Fields__select__before_end_wrapper',
-                $input_html,
-                $question,
-                $answer,
-                $name,
-                $id,
-                $class,
-                $system_ID
-            );
-
-        $input_html = apply_filters('FHEE__EEH_Form_Fields__input_html', $input_html, $label_html, $id);
-        return $label_html . $input_html;
-    }
-
-
-    /**
-     *  _generate_select_option_group
-     *
-     *  if  $value for a select box is an array, then the key will be used as the optgroup label
-     *  and the value array will be looped thru and the elements sent to _generate_select_option
-     *
-     * @param mixed   $opt_group
-     * @param mixed   $QSOs
-     * @param mixed   $answer
-     * @param boolean $use_html_entities
-     * @return string
-     */
-    private static function _generate_select_option_group($opt_group, $QSOs, $answer, $use_html_entities = true)
-    {
-        $html = "\n\t\t\t\t" . '<optgroup label="' . self::prep_option_value($opt_group) . '">';
-        foreach ($QSOs as $QSO) {
-            $html .= self::_generate_select_option($QSO->value(), $QSO->desc(), $answer, false, $use_html_entities);
-        }
-        $html .= "\n\t\t\t\t" . '</optgroup>';
-        return $html;
-    }
-
-
-    /**
-     *  _generate_select_option
-     *
-     * @param mixed   $key
-     * @param mixed   $value
-     * @param mixed   $answer
-     * @param int     $only_option
-     * @param boolean $use_html_entities
-     * @return string
-     */
-    private static function _generate_select_option(
-        $key,
-        $value,
-        $answer,
-        $only_option = false,
-        $use_html_entities = true
-    ) {
-        $key      = self::prep_answer($key, $use_html_entities);
-        $value    = self::prep_answer($value, $use_html_entities);
-        $value    = ! empty($value) ? $value : $key;
-        $selected = ($answer == $key || $only_option) ? 'selected' : '';
-        return "\n\t\t\t\t"
-               . '<option value="' . self::prep_option_value($key) . '" ' . $selected . '> '
-               . $value
-               . '&nbsp;&nbsp;&nbsp;</option>';
-    }
-
-
-    /**
-     * generates HTML for form radio button inputs
-     *
-     * @param string      $question    label content
-     * @param string|int  $answer      form input value attribute
-     * @param array|bool  $options     array of answer options where array key = option value and array value = option
-     *                                 display text
-     * @param string $name        form input name attribute
-     * @param string      $id          form input css id attribute
-     * @param string      $class       form input css class attribute
-     * @param array|bool  $required    'label', 'class', and 'msg' - array of values for required "label" content, css
-     *                                 required 'class', and required 'msg' attribute
-     * @param string      $required_text
-     * @param string      $label_class css class attribute for the label
-     * @param bool|string $disabled    disabled="disabled" or null
-     * @param string      $system_ID
-     * @param bool        $use_html_entities
-     * @param bool        $label_b4
-     * @param bool        $use_desc_4_label
-     * @return string HTML
-     */
-    public static function radio(
-        string $question = '',
-        $answer = null,
-        $options = false,
-        string $name = '',
-        string $id = '',
-        string $class = '',
-        $required = false,
-        string $required_text = '',
-        string $label_class = '',
-        bool $disabled = false,
-        string $system_ID = '',
-        bool $use_html_entities = true,
-        bool $label_b4 = false,
-        bool $use_desc_4_label = false,
-        bool $add_mobile_label = false
-    ) {
-        // need these
-        if (! $question || ! $name || ! $options || empty($options) || ! is_array($options)) {
-            return null;
-        }
-        // prep the answer
-        $answer = is_array($answer) ? '' : self::prep_answer($answer, $use_html_entities);
-        // prep the required array
-        $required = self::prep_required($required);
-        // set disabled tag
-        $disabled = $answer === null || ! $disabled ? '' : ' disabled="disabled"';
-        // ya gots ta have style man!!!
-        $radio_class = is_admin() ? 'ee-admin-radio-lbl' : $label_class;
-        $class       = ! empty($class) ? $class : 'espresso-radio-btn-inp';
-        $extra       = apply_filters('FHEE__EEH_Form_Fields__additional_form_field_attributes', '');
-
-        $label_html = self::label($question, $required_text, $required['label'], '', $label_class);
-        $mobile_label = self::mobileLabel(
-            $add_mobile_label,
-            $question,
-            $required_text,
-            $required['label'],
-            $label_class
-        );
-
-        $input_html = $mobile_label
-            . '<ul id="' . $id . '-ul" class="espresso-radio-btn-options-ul ' . $class . '-ul">';
-
-        $class .= ! empty($system_ID) ? ' ' . $system_ID : '';
-        $class .= ! empty($required['class']) ? ' ' . $required['class'] : '';
-
-        foreach ($options as $OPT) {
-            if ($OPT instanceof EE_Question_Option) {
-                $value   = self::prep_option_value($OPT->value());
-                $label   = $use_desc_4_label ? $OPT->desc() : $OPT->value();
-                $size    = $use_desc_4_label
-                    ? self::get_label_size_class($OPT->value() . ' ' . $OPT->desc())
-                    : self::get_label_size_class($OPT->value());
-                $desc    = $OPT->desc();// no self::prep_answer
-                $answer  = is_numeric($value) && empty($answer) ? 0 : $answer;
-                $value  = is_numeric($answer) && empty($value) ? 0 : $value;
-                $checked = (string) $value == (string) $answer ? ' checked' : '';
-                $opt     = '-' . sanitize_key($value);
-
-                $input_html .= "\n\t\t\t\t" . '<li' . $size . '>';
-                $input_html .= "\n\t\t\t\t\t" . '<label class="' . $radio_class . ' espresso-radio-btn-lbl">';
-                $input_html .= $label_b4 ? "\n\t\t\t\t\t\t" . '<span>' . $label . '</span>&nbsp;' : '';
-                $input_html .= "\n\t\t\t\t\t\t"
-                               . '<input type="radio" name="' . $name . '" id="' . $id . $opt . '" '
-                               . 'class="' . $class . '" value="' . $value . '" '
-                               . 'aria-label="' . esc_attr($required['msg']) . '" ' . $disabled
-                               . $checked . ' ' . $extra . '/>';
-                $input_html .= ! $label_b4
-                    ? "\n\t\t\t\t\t\t"
-                      . '&nbsp;<span class="espresso-radio-btn-desc">'
-                      . $label
-                      . '</span>'
-                    : '';
-                $input_html .= "\n\t\t\t\t\t" . '</label>';
-                $input_html .= $use_desc_4_label
-                    ? ''
-                    : '<span class="espresso-radio-btn-option-desc small-text grey-text">' . $desc . '</span>';
-                $input_html .= "\n\t\t\t\t" . '</li>';
-            }
-        }
-
-        $input_html .= "\n\t\t\t" . '</ul>';
-
-        $input_html = apply_filters('FHEE__EEH_Form_Fields__input_html', $input_html, $label_html, $id);
-        return $label_html . $input_html;
-    }
-
-
-    /**
-     * generates HTML for form checkbox inputs
-     *
-     * @param string $question    label content
-     * @param string $answer      form input value attribute
-     * @param array  $options     array of options where array key = option value and array value = option display text
-     * @param string $name        form input name attribute
-     * @param string $id          form input css id attribute
-     * @param string $class       form input css class attribute
-     * @param array  $required    'label', 'class', and 'msg' - array of values for required "label" content, css
-     *                            required 'class', and required 'msg' attribute
-     * @param string $label_class css class attribute for the label
-     * @param string $disabled    disabled="disabled" or null
-     * @return string HTML
-     */
-    public static function checkbox(
-        $question = false,
-        $answer = null,
-        $options = false,
-        $name = false,
-        $id = '',
-        $class = '',
-        $required = false,
-        $required_text = '',
-        $label_class = '',
-        $disabled = false,
-        $label_b4 = false,
-        $system_ID = false,
-        $use_html_entities = true,
-        $add_mobile_label = false
-    ) {
-        // need these
-        if (! $question || ! $name || ! $options || empty($options) || ! is_array($options)) {
-            return null;
-        }
-        $answer = maybe_unserialize($answer);
-
-        // prep the answer(s)
-        $answer = is_array($answer) ? $answer : [sanitize_key($answer) => $answer];
-
-        foreach ($answer as $key => $value) {
-            $key            = self::prep_option_value($key);
-            $answer[ $key ] = self::prep_answer($value, $use_html_entities);
-        }
-
-        // prep the required array
-        $required = self::prep_required($required);
-        // set disabled tag
-        $disabled = $answer === null || ! $disabled ? '' : ' disabled="disabled"';
-        // ya gots ta have style man!!!
-        $radio_class = is_admin() ? 'ee-admin-radio-lbl' : $label_class;
-        $class       = empty($class) ? 'espresso-radio-btn-inp' : $class;
-        $extra       = apply_filters('FHEE__EEH_Form_Fields__additional_form_field_attributes', '');
-
-        $label_html   = self::label($question, $required_text, $required['label'], '', $label_class);
-        $mobile_label = self::mobileLabel(
-            $add_mobile_label,
-            $question,
-            $required_text,
-            $required['label'],
-            $label_class
-        );
-
-        $input_html = $mobile_label
-            . '<ul id="' . $id . '-ul" class="espresso-checkbox-options-ul ' . $class . '-ul">';
-
-        $class .= ! empty($system_ID) ? ' ' . $system_ID : '';
-        $class .= ! empty($required['class']) ? ' ' . $required['class'] : '';
-
-        foreach ($options as $OPT) {
-            $value = $OPT->value();// self::prep_option_value( $OPT->value() );
-            $size  = self::get_label_size_class($OPT->value() . ' ' . $OPT->desc());
-            $text  = self::prep_answer($OPT->value());
-            $desc  = $OPT->desc();
-            $opt   = '-' . sanitize_key($value);
-
-            $checked = is_array($answer) && in_array($text, $answer) ? ' checked' : '';
-
-            $input_html .= "\n\t\t\t\t" . '<li' . $size . '>';
-            $input_html .= "\n\t\t\t\t\t" . '<label class="' . $radio_class . ' espresso-checkbox-lbl">';
-            $input_html .= $label_b4 ? "\n\t\t\t\t\t\t" . '<span>' . $text . '</span>&nbsp;' : '';
-            $input_html .= "\n\t\t\t\t\t\t"
-                           . '<input type="checkbox" name="' . $name . '[' . $OPT->ID() . ']" '
-                           . 'id="' . $id . $opt . '" class="' . $class . '" value="' . $value . '" '
-                           . 'aria-label="' . esc_attr($required['msg']) . '" ' . $disabled . $checked . ' ' . $extra . '/>';
-            $input_html .= ! $label_b4 ? "\n\t\t\t\t\t\t" . '&nbsp;<span>' . $text . '</span>' : '';
-            $input_html .= "\n\t\t\t\t\t" . '</label>';
-            if (! empty($desc) && $desc != $text) {
-                $input_html .= "\n\t\t\t\t\t"
-                               . ' &nbsp; <br/><div class="espresso-checkbox-option-desc small-text grey-text">'
-                               . $desc
-                               . '</div>';
-            }
-            $input_html .= "\n\t\t\t\t" . '</li>';
-        }
-
-        $input_html .= "\n\t\t\t" . '</ul>';
-
-        $input_html = apply_filters('FHEE__EEH_Form_Fields__input_html', $input_html, $label_html, $id);
-        return $label_html . $input_html;
-    }
-
-
-    /**
-     * generates HTML for a form datepicker input
-     *
-     * @param string $question    label content
-     * @param string $answer      form input value attribute
-     * @param string $name        form input name attribute
-     * @param string $id          form input css id attribute
-     * @param string $class       form input css class attribute
-     * @param array  $required    'label', 'class', and 'msg' - array of values for required "label" content, css
-     *                            required 'class', and required 'msg' attribute
-     * @param string $label_class css class attribute for the label
-     * @param string $disabled    disabled="disabled" or null
-     * @return string HTML
-     */
-    public static function datepicker(
-        $question = false,
-        $answer = null,
-        $name = false,
-        $id = '',
-        $class = '',
-        $required = false,
-        $required_text = '',
-        $label_class = '',
-        $disabled = false,
-        $system_ID = false,
-        $use_html_entities = true,
-        $add_mobile_label = false
-    ) {
-        // need these
-        if (! $question || ! $name) {
-            return null;
-        }
-        // prep the answer
-        $answer = is_array($answer) ? '' : self::prep_answer($answer, $use_html_entities);
-        // prep the required array
-        $required = self::prep_required($required);
-        // set disabled tag
-        $disabled = $answer === null || ! $disabled ? '' : ' disabled="disabled"';
-        // ya gots ta have style man!!!
-        $txt_class = is_admin() ? 'regular-text' : 'espresso-datepicker-inp';
-        $class     = empty($class) ? $txt_class : $class;
-        $class     .= ! empty($system_ID) ? ' ' . $system_ID : '';
-        $class = self::appendInputSizeClass($class, $answer);
-        $extra     = apply_filters('FHEE__EEH_Form_Fields__additional_form_field_attributes', '');
-
-        $label_html   = self::label($question, $required_text, $required['label'], '', $label_class);
-        $mobile_label = self::mobileLabel(
-            $add_mobile_label,
-            $question,
-            $required_text,
-            $required['label'],
-            $label_class,
-            $name
-        );
-
-        $input_html = $mobile_label
-            . '<input type="text" name="' . $name . '" id="' . $id . '" '
-            . 'class="' . $class . ' ' . $required['class'] . ' datepicker" value="' . $answer . '"  '
-            . 'aria-label="' . esc_attr($required['msg']) . '" ' . $disabled . ' ' . $extra . '/>';
-
-        // enqueue scripts
-        wp_register_style(
-            'espresso-ui-theme',
-            EE_GLOBAL_ASSETS_URL . 'css/espresso-ui-theme/jquery-ui-1.10.3.custom.min.css',
-            [],
-            EVENT_ESPRESSO_VERSION
-        );
-        wp_enqueue_style('espresso-ui-theme');
-        wp_enqueue_script('jquery-ui-datepicker');
-
-        $input_html = apply_filters('FHEE__EEH_Form_Fields__input_html', $input_html, $label_html, $id);
-        return $label_html . $input_html;
-    }
-
-
-    /**
-     *  remove_label_keep_required_msg
-     *  this will strip out a form input's label HTML while keeping the required text HTML that MUST be before the label
-     *
-     * @access public
-     * @return     string
-     */
-    public static function remove_label_keep_required_msg($label_html, $required_text)
-    {
-        return $required_text;
-    }
-
-
-    /**
-     * Simply returns the HTML for a hidden input of the given name and value.
-     *
-     * @param string $name
-     * @param string $value
-     * @return string HTML
-     */
-    public static function hidden_input($name, $value, $id = '')
-    {
-        $id = ! empty($id) ? $id : $name;
-        return '<input id="' . $id . '" type="hidden" name="' . $name . '" value="' . $value . '"/>';
-    }
-
-
-    /**
-     * prep_question
-     *
-     * @param string $question
-     * @return string
-     */
-    public static function prep_question($question)
-    {
-        return $question;
-    }
-
-
-    /**
-     *  prep_answer
-     *
-     * @param mixed $answer
-     * @return string
-     */
-    public static function prep_answer($answer, $use_html_entities = true)
-    {
-        // make sure we convert bools first.  Otherwise (bool) false becomes an empty string which is NOT desired,
-        // we want "0".
-        if (is_bool($answer)) {
-            $answer = $answer ? 1 : 0;
-        }
-        $answer = trim(stripslashes(str_replace('&#039;', "'", $answer)));
-        return $use_html_entities ? htmlentities($answer, ENT_QUOTES, 'UTF-8') : $answer;
-    }
-
-
-    /**
-     *  prep_answer_options
-     *
-     * @param array $QSOs array of EE_Question_Option objects
-     * @return array
-     */
-    public static function prep_answer_options($QSOs = [])
-    {
-        $prepped_answer_options = [];
-        if (is_array($QSOs) && ! empty($QSOs)) {
-            foreach ($QSOs as $key => $QSO) {
-                if (! $QSO instanceof EE_Question_Option) {
-                    $QSO = EE_Question_Option::new_instance(
-                        [
-                            'QSO_value' => is_array($QSO) && isset($QSO['id'])
-                                ? (string) $QSO['id']
-                                : (string) $key,
-                            'QSO_desc'  => is_array($QSO) && isset($QSO['text'])
-                                ? (string) $QSO['text']
-                                : (string) $QSO,
-                        ]
-                    );
-                }
-                if ($QSO->opt_group()) {
-                    $prepped_answer_options[ $QSO->opt_group() ][] = $QSO;
-                } else {
-                    $prepped_answer_options[] = $QSO;
-                }
-            }
-        }
-        //      d( $prepped_answer_options );
-        return $prepped_answer_options;
-    }
-
-
-    /**
-     *  prep_option_value
-     *
-     * @param string|int $option_value
-     * @return string
-     */
-    public static function prep_option_value($option_value)
-    {
-        return esc_attr(trim(stripslashes($option_value)));
-    }
-
-
-    /**
-     *  prep_required
-     *
-     * @param string|array $required
-     * @return array
-     */
-    public static function prep_required($required = [])
-    {
-        // make sure required is an array
-        $required = is_array($required) ? $required : [];
-        // and set some defaults
-        return array_merge(['label' => '', 'class' => '', 'msg' => ''], $required);
-    }
-
-
-    /**
-     *  get_label_size_class
-     *
-     * @param string $value
-     * @return string
-     */
-    public static function get_label_size_class($value = false)
-    {
-        if ($value === false || $value === '') {
-            return ' class="medium-lbl"';
-        }
-        // determine length of option value
-        $val_size = strlen($value);
-        switch ($val_size) {
-            case $val_size < 3:
-                $size = ' class="nano-lbl"';
-                break;
-            case $val_size < 6:
-                $size = ' class="micro-lbl"';
-                break;
-            case $val_size < 12:
-                $size = ' class="tiny-lbl"';
-                break;
-            case $val_size < 25:
-                $size = ' class="small-lbl"';
-                break;
-            case $val_size > 100:
-                $size = ' class="big-lbl"';
-                break;
-            default:
-                $size = ' class="medium-lbl"';
-                break;
-        }
-        return $size;
-    }
-
-
-    /**
-     *  _load_system_dropdowns
-     *
-     * @param EE_Question_Form_Input $QFI
-     * @return array
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    private static function _load_system_dropdowns($QFI)
-    {
-        $QST_system = $QFI->get('QST_system');
-        switch ($QST_system) {
-            case 'state':
-                $QFI = self::generate_state_dropdown($QFI);
-                break;
-            case 'country':
-                $QFI = self::generate_country_dropdown($QFI);
-                break;
-            case 'admin-state':
-                $QFI = self::generate_state_dropdown($QFI, true);
-                break;
-            case 'admin-country':
-                $QFI = self::generate_country_dropdown($QFI, true);
-                break;
-        }
-        return $QFI;
-    }
-
-
-    /**
-     * This preps dropdowns that are specialized.
-     *
-     * @param EE_Question_Form_Input $QFI
-     *
-     * @return EE_Question_Form_Input
-     * @throws EE_Error
-     * @throws ReflectionException
-     * @since  4.6.0
-     */
-    protected static function _load_specialized_dropdowns($QFI)
-    {
-        switch ($QFI->get('QST_type')) {
-            case 'STATE':
-                $QFI = self::generate_state_dropdown($QFI);
-                break;
-            case 'COUNTRY':
-                $QFI = self::generate_country_dropdown($QFI);
-                break;
-        }
-        return $QFI;
-    }
-
-
-    /**
-     *    generate_state_dropdown
-     *
-     * @param EE_Question_Form_Input $QST
-     * @param bool                   $get_all
-     * @return EE_Question_Form_Input
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function generate_state_dropdown($QST, $get_all = false)
-    {
-        $states = $get_all
-            ? EEM_State::instance()->get_all_states()
-            : EEM_State::instance()->get_all_states_of_active_countries();
-        if ($states && count($states) != count($QST->options())) {
-            $QST->set('QST_type', 'DROPDOWN');
-            // if multiple countries, we'll create option groups within the dropdown
-            foreach ($states as $state) {
-                if ($state instanceof EE_State) {
-                    $QSO = EE_Question_Option::new_instance(
-                        [
-                            'QSO_value'   => $state->ID(),
-                            'QSO_desc'    => $state->name(),
-                            'QST_ID'      => $QST->get('QST_ID'),
-                            'QSO_deleted' => false,
-                        ]
-                    );
-                    // set option group
-                    $QSO->set_opt_group($state->country()->name());
-                    // add option to question
-                    $QST->add_temp_option($QSO);
-                }
-            }
-        }
-        return $QST;
-    }
-
-
-    /**
-     *    generate_country_dropdown
-     *
-     * @param      $QST
-     * @param bool $get_all
-     * @return array
-     * @throws EE_Error
-     * @throws ReflectionException
-     * @internal param array $question
-     */
-    public static function generate_country_dropdown($QST, $get_all = false)
-    {
-        $countries = $get_all
-            ? EEM_Country::instance()->get_all_countries()
-            : EEM_Country::instance()->get_all_active_countries();
-        if ($countries && count($countries) != count($QST->options())) {
-            $QST->set('QST_type', 'DROPDOWN');
-            // now add countries
-            foreach ($countries as $country) {
-                if ($country instanceof EE_Country) {
-                    $QSO = EE_Question_Option::new_instance(
-                        [
-                            'QSO_value'   => $country->ID(),
-                            'QSO_desc'    => $country->name(),
-                            'QST_ID'      => $QST->get('QST_ID'),
-                            'QSO_deleted' => false,
-                        ]
-                    );
-                    $QST->add_temp_option($QSO);
-                }
-            }
-        }
-        return $QST;
-    }
-
-
-    /**
-     *  generates options for a month dropdown selector with numbers from 01 to 12
-     *
-     * @return array()
-     */
-    public static function two_digit_months_dropdown_options()
-    {
-        $options = [];
-        for ($x = 1; $x <= 12; $x++) {
-            $mm             = str_pad($x, 2, '0', STR_PAD_LEFT);
-            $options[ $mm ] = $mm;
-        }
-        return EEH_Form_Fields::prep_answer_options($options);
-    }
-
-
-    /**
-     *  generates a year dropdown selector with numbers for the next ten years
-     *
-     * @return array
-     */
-    public static function next_decade_two_digit_year_dropdown_options()
-    {
-        $options      = [];
-        $current_year = date('y');
-        $next_decade  = $current_year + 10;
-        for ($x = $current_year; $x <= $next_decade; $x++) {
-            $yy             = str_pad($x, 2, '0', STR_PAD_LEFT);
-            $options[ $yy ] = $yy;
-        }
-        return EEH_Form_Fields::prep_answer_options($options);
-    }
-
-
-    /**
-     * generates a month/year dropdown selector for all registrations matching the given criteria.  Typically used for
-     * list table filter.
-     *
-     * @param string  $cur_date     any currently selected date can be entered here.
-     * @param string  $status       Registration status
-     * @param integer $evt_category Event Category ID if the Event Category filter is selected
-     * @return string                html
-     * @throws EE_Error
-     */
-    public static function generate_registration_months_dropdown($cur_date = '', $status = '', $evt_category = 0)
-    {
-        $_where = [];
-        if (! empty($status)) {
-            $_where['STS_ID'] = $status;
-        }
-
-        if ($evt_category > 0) {
-            $_where['Event.Term_Taxonomy.term_id'] = $evt_category;
-        }
-
-        $regdtts = EEM_Registration::instance()->get_reg_months_and_years($_where);
-
-        // setup vals for select input helper
-        $options = [
-            0 => [
-                'text' => esc_html__('Select a Month/Year', 'event_espresso'),
-                'id'   => '',
-            ],
-        ];
-
-        foreach ($regdtts as $regdtt) {
-            $date      = $regdtt->reg_month . ' ' . $regdtt->reg_year;
-            $options[] = [
-                'text' => $date,
-                'id'   => $date,
-            ];
-        }
-
-        return self::select_input('month_range', $options, $cur_date);
-    }
-
-
-    /**
-     * generates a month/year dropdown selector for all events matching the given criteria
-     * Typically used for list table filter
-     *
-     * @param string $cur_date          any currently selected date can be entered here.
-     * @param string $status            "view" (i.e. all, today, month, draft)
-     * @param int    $evt_category      category event belongs to
-     * @param string $evt_active_status "upcoming", "expired", "active", or "inactive"
-     * @return string                    html
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function generate_event_months_dropdown(
-        string $cur_date = '',
-        string $status = 'all',
-        int $evt_category = 0,
-        string $evt_active_status = ''
-    ): string {
-        // determine what post_status our condition will have for the query.
-        switch ($status) {
-            case 'month':
-            case 'today':
-            case 'all':
-                $where['Event.status'] = ['NOT IN', ['trash']];
-                break;
-            case 'draft':
-                $where['Event.status'] = ['IN', ['draft', 'auto-draft']];
-                break;
-            default:
-                $where['Event.status'] = $status;
-        }
-
-        // categories?
-        if (! empty($evt_category) and $evt_category > 0) {
-            $where['Event.Term_Taxonomy.taxonomy'] = 'espresso_event_categories';
-            $where['Event.Term_Taxonomy.term_id']  = $evt_category;
-        }
-
-        //      $where['DTT_is_primary'] = 1;
-
-        $DTTS = EEM_Datetime::instance()->get_dtt_months_and_years($where, $evt_active_status);
-
-        // let's setup vals for select input helper
-        $options = [
-            0 => [
-                'text' => esc_html__('Select a Month/Year', 'event_espresso'),
-                'id'   => "",
-            ],
-        ];
-
-
-        // translate month and date
-        global $wp_locale;
-
-        foreach ($DTTS as $DTT) {
-            $localized_date = $wp_locale->get_month($DTT->dtt_month_num) . ' ' . $DTT->dtt_year;
-            $id             = $DTT->dtt_month . ' ' . $DTT->dtt_year;
-            $options[]      = [
-                'text' => $localized_date,
-                'id'   => $id,
-            ];
-        }
-
-
-        return self::select_input('month_range', $options, $cur_date);
-    }
-
-
-    /**
-     * generates the dropdown selector for event categories
-     * typically used as a filter on list tables.
-     *
-     * @param integer $current_cat currently selected category
-     * @return string               html for dropdown
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function generate_event_category_dropdown($current_cat = -1)
-    {
-        $categories = EEM_Term::instance()->get_all_ee_categories(true);
-        $options    = [
-            '0' => [
-                'text' => esc_html__('All Categories', 'event_espresso'),
-                'id'   => -1,
-            ],
-        ];
-
-        // setup categories for dropdown
-        foreach ($categories as $category) {
-            $options[] = [
-                'text' => $category->get('name'),
-                'id'   => $category->ID(),
-            ];
-        }
-
-        return self::select_input('EVT_CAT', $options, $current_cat);
-    }
-
-
-    /**
-     *    generate a submit button with or without it's own microform
-     *    this is the only way to create buttons that are compatible across all themes
-     *
-     * @access    public
-     * @param string      $url              - the form action
-     * @param string      $ID               - some kind of unique ID, appended with "-sbmt" for the input and "-frm"
-     *                                      for the form
-     * @param string      $class            - css classes (separated by spaces if more than one)
-     * @param string      $text             - what appears on the button
-     * @param string      $nonce_action     - if using nonces
-     * @param bool|string $input_only       - whether to print form header and footer. TRUE returns the input without
-     *                                      the form
-     * @param string      $extra_attributes - any extra attributes that need to be attached to the form input
-     * @return    string
-     */
-    public static function submit_button(
-        $url = '',
-        $ID = '',
-        $class = '',
-        $text = '',
-        $nonce_action = '',
-        $input_only = false,
-        $extra_attributes = ''
-    ) {
-        $btn = '';
-        if (empty($url) || empty($ID)) {
-            return $btn;
-        }
-        $text = ! empty($text) ? $text : esc_html__('Submit', 'event_espresso');
-        $btn  .= '<input id="' . $ID . '-btn" class="' . $class . '" '
-                 . 'type="submit" value="' . $text . '" ' . $extra_attributes . '/>';
-        if (! $input_only) {
-            $btn_frm = '<form id="' . $ID . '-frm" method="POST" action="' . $url . '">';
-            $btn_frm .= ! empty($nonce_action)
-                ? wp_nonce_field($nonce_action, $nonce_action . '_nonce', true, false)
-                : '';
-            $btn_frm .= $btn;
-            $btn_frm .= '</form>';
-            $btn     = $btn_frm;
-            unset($btn_frm);
-        }
-        return $btn;
-    }
+		$input_html = apply_filters('FHEE__EEH_Form_Fields__input_html', $input_html, $label_html, $id);
+		return $label_html . $input_html;
+	}
+
+
+	/**
+	 * generates HTML for a form textarea
+	 *
+	 * @param string $question    label content
+	 * @param string $answer      form input value attribute
+	 * @param string $name        form input name attribute
+	 * @param string $id          form input css id attribute
+	 * @param string $class       form input css class attribute
+	 * @param array  $dimensions  array of form input rows and cols attributes : array( 'rows' => 3, 'cols' => 40 )
+	 * @param array  $required    'label', 'class', and 'msg' - array of values for required "label" content, css
+	 *                            required 'class', and required 'msg' attribute
+	 * @param string $label_class css class attribute for the label
+	 * @param string $disabled    disabled="disabled" or null
+	 * @return string HTML
+	 */
+	public static function textarea(
+		$question = false,
+		$answer = null,
+		$name = false,
+		$id = '',
+		$class = '',
+		$dimensions = false,
+		$required = false,
+		$required_text = '',
+		$label_class = '',
+		$disabled = false,
+		$system_ID = false,
+		$use_html_entities = true,
+		$add_mobile_label = false
+	) {
+		// need these
+		if (! $question || ! $name) {
+			return null;
+		}
+		// prep the answer
+		$answer = is_array($answer) ? '' : self::prep_answer($answer, $use_html_entities);
+		// prep the required array
+		$required = self::prep_required($required);
+		// make sure $dimensions is an array
+		$dimensions = is_array($dimensions) ? $dimensions : [];
+		// and set some defaults
+		$dimensions = array_merge(['rows' => 3, 'cols' => 40], $dimensions);
+		// set disabled tag
+		$disabled = $answer === null || ! $disabled ? '' : ' disabled="disabled"';
+		// ya gots ta have style man!!!
+		$class     .= ! empty($system_ID) ? ' ' . $system_ID : '';
+		$class     .= ! empty($required['class']) ? ' ' . $required['class'] : '';
+		$extra     = apply_filters('FHEE__EEH_Form_Fields__additional_form_field_attributes', '');
+
+		$label_html   = self::label($question, $required_text, $required['label'], $name, $label_class);
+		$mobile_label = self::mobileLabel(
+			$add_mobile_label,
+			$question,
+			$required_text,
+			$required['label'],
+			$label_class,
+			$name
+		);
+
+		$input_html = $mobile_label
+			. '<textarea name="' . $name . '" id="' . $id . '" class="' . trim($class) . '" '
+			. 'rows="' . $dimensions['rows'] . '" cols="' . $dimensions['cols'] . '"  '
+			. 'aria-label="' . $required['msg'] . '" ' . $disabled . ' ' . $extra . '>'
+			 . esc_textarea($answer)
+			  . '</textarea>';
+
+		$input_html = apply_filters('FHEE__EEH_Form_Fields__input_html', $input_html, $label_html, $id);
+		return $label_html . $input_html;
+	}
+
+
+	/**
+	 * generates HTML for a form select input
+	 *
+	 * @param string $question    label content
+	 * @param string $answer      form input value attribute
+	 * @param array  $options     array of answer options where array key = option value and array value = option
+	 *                            display text
+	 * @param string $name        form input name attribute
+	 * @param string $id          form input css id attribute
+	 * @param string $class       form input css class attribute
+	 * @param array  $required    'label', 'class', and 'msg' - array of values for required "label" content, css
+	 *                            required 'class', and required 'msg' attribute
+	 * @param string $label_class css class attribute for the label
+	 * @param string $disabled    disabled="disabled" or null
+	 * @return string HTML
+	 */
+	public static function select(
+		$question = false,
+		$answer = null,
+		$options = false,
+		$name = false,
+		$id = '',
+		$class = '',
+		$required = false,
+		$required_text = '',
+		$label_class = '',
+		$disabled = false,
+		$system_ID = false,
+		$use_html_entities = true,
+		$add_please_select_option = false,
+		$add_mobile_label = false
+	) {
+
+		// need these
+		if (! $question || ! $name || ! $options || empty($options) || ! is_array($options)) {
+			return null;
+		}
+		// prep the answer
+		$answer = is_array($answer)
+			? self::prep_answer(array_shift($answer), $use_html_entities)
+			: self::prep_answer($answer, $use_html_entities);
+		// prep the required array
+		$required = self::prep_required($required);
+		// set disabled tag
+		$disabled = $answer === null || ! $disabled ? '' : ' disabled="disabled"';
+		// ya gots ta have style man!!!
+		$class     .= ! empty($system_ID) ? ' ' . $system_ID : '';
+		$class = self::appendInputSizeClass($class, $options);
+		$extra     = apply_filters('FHEE__EEH_Form_Fields__additional_form_field_attributes', '');
+
+		$label_html   = self::label($question, $required_text, $required['label'], $name, $label_class);
+		$mobile_label = self::mobileLabel(
+			$add_mobile_label,
+			$question,
+			$required_text,
+			$required['label'],
+			$label_class,
+			$name
+		);
+
+		$input_html = $mobile_label
+			. '<select name="' . $name . '" id="' . $id . '" class="' . trim($class) . ' ' . $required['class'] . '" '
+			. 'aria-label="' . esc_attr($required['msg']) . '"' . $disabled . ' ' . $extra . '>';
+		// recursively count array elements, to determine total number of options
+		$only_option = count($options, 1) == 1;
+		if (! $only_option) {
+			// if there is NO answer set and there are multiple options to choose from, then set the "please select" message as selected
+			$selected   = $answer === null ? ' selected' : '';
+			$input_html .= $add_please_select_option
+				? "\n\t\t\t\t"
+				  . '<option value=""' . $selected . '>'
+				  . esc_html__(' - please select - ', 'event_espresso')
+				  . '</option>'
+				: '';
+		}
+		foreach ($options as $key => $value) {
+			// if value is an array, then create option groups, else create regular ol' options
+			$input_html .= is_array($value)
+				? self::_generate_select_option_group(
+					$key,
+					$value,
+					$answer,
+					$use_html_entities
+				)
+				: self::_generate_select_option(
+					$value->value(),
+					$value->desc(),
+					$answer,
+					$only_option,
+					$use_html_entities
+				);
+		}
+
+		$input_html .= "\n\t\t\t" . '</select>';
+
+		$input_html =
+			apply_filters(
+				'FHEE__EEH_Form_Fields__select__before_end_wrapper',
+				$input_html,
+				$question,
+				$answer,
+				$name,
+				$id,
+				$class,
+				$system_ID
+			);
+
+		$input_html = apply_filters('FHEE__EEH_Form_Fields__input_html', $input_html, $label_html, $id);
+		return $label_html . $input_html;
+	}
+
+
+	/**
+	 *  _generate_select_option_group
+	 *
+	 *  if  $value for a select box is an array, then the key will be used as the optgroup label
+	 *  and the value array will be looped thru and the elements sent to _generate_select_option
+	 *
+	 * @param mixed   $opt_group
+	 * @param mixed   $QSOs
+	 * @param mixed   $answer
+	 * @param boolean $use_html_entities
+	 * @return string
+	 */
+	private static function _generate_select_option_group($opt_group, $QSOs, $answer, $use_html_entities = true)
+	{
+		$html = "\n\t\t\t\t" . '<optgroup label="' . self::prep_option_value($opt_group) . '">';
+		foreach ($QSOs as $QSO) {
+			$html .= self::_generate_select_option($QSO->value(), $QSO->desc(), $answer, false, $use_html_entities);
+		}
+		$html .= "\n\t\t\t\t" . '</optgroup>';
+		return $html;
+	}
+
+
+	/**
+	 *  _generate_select_option
+	 *
+	 * @param mixed   $key
+	 * @param mixed   $value
+	 * @param mixed   $answer
+	 * @param int     $only_option
+	 * @param boolean $use_html_entities
+	 * @return string
+	 */
+	private static function _generate_select_option(
+		$key,
+		$value,
+		$answer,
+		$only_option = false,
+		$use_html_entities = true
+	) {
+		$key      = self::prep_answer($key, $use_html_entities);
+		$value    = self::prep_answer($value, $use_html_entities);
+		$value    = ! empty($value) ? $value : $key;
+		$selected = ($answer == $key || $only_option) ? 'selected' : '';
+		return "\n\t\t\t\t"
+			   . '<option value="' . self::prep_option_value($key) . '" ' . $selected . '> '
+			   . $value
+			   . '&nbsp;&nbsp;&nbsp;</option>';
+	}
+
+
+	/**
+	 * generates HTML for form radio button inputs
+	 *
+	 * @param string      $question    label content
+	 * @param string|int  $answer      form input value attribute
+	 * @param array|bool  $options     array of answer options where array key = option value and array value = option
+	 *                                 display text
+	 * @param string $name        form input name attribute
+	 * @param string      $id          form input css id attribute
+	 * @param string      $class       form input css class attribute
+	 * @param array|bool  $required    'label', 'class', and 'msg' - array of values for required "label" content, css
+	 *                                 required 'class', and required 'msg' attribute
+	 * @param string      $required_text
+	 * @param string      $label_class css class attribute for the label
+	 * @param bool|string $disabled    disabled="disabled" or null
+	 * @param string      $system_ID
+	 * @param bool        $use_html_entities
+	 * @param bool        $label_b4
+	 * @param bool        $use_desc_4_label
+	 * @return string HTML
+	 */
+	public static function radio(
+		string $question = '',
+		$answer = null,
+		$options = false,
+		string $name = '',
+		string $id = '',
+		string $class = '',
+		$required = false,
+		string $required_text = '',
+		string $label_class = '',
+		bool $disabled = false,
+		string $system_ID = '',
+		bool $use_html_entities = true,
+		bool $label_b4 = false,
+		bool $use_desc_4_label = false,
+		bool $add_mobile_label = false
+	) {
+		// need these
+		if (! $question || ! $name || ! $options || empty($options) || ! is_array($options)) {
+			return null;
+		}
+		// prep the answer
+		$answer = is_array($answer) ? '' : self::prep_answer($answer, $use_html_entities);
+		// prep the required array
+		$required = self::prep_required($required);
+		// set disabled tag
+		$disabled = $answer === null || ! $disabled ? '' : ' disabled="disabled"';
+		// ya gots ta have style man!!!
+		$radio_class = is_admin() ? 'ee-admin-radio-lbl' : $label_class;
+		$class       = ! empty($class) ? $class : 'espresso-radio-btn-inp';
+		$extra       = apply_filters('FHEE__EEH_Form_Fields__additional_form_field_attributes', '');
+
+		$label_html = self::label($question, $required_text, $required['label'], '', $label_class);
+		$mobile_label = self::mobileLabel(
+			$add_mobile_label,
+			$question,
+			$required_text,
+			$required['label'],
+			$label_class
+		);
+
+		$input_html = $mobile_label
+			. '<ul id="' . $id . '-ul" class="espresso-radio-btn-options-ul ' . $class . '-ul">';
+
+		$class .= ! empty($system_ID) ? ' ' . $system_ID : '';
+		$class .= ! empty($required['class']) ? ' ' . $required['class'] : '';
+
+		foreach ($options as $OPT) {
+			if ($OPT instanceof EE_Question_Option) {
+				$value   = self::prep_option_value($OPT->value());
+				$label   = $use_desc_4_label ? $OPT->desc() : $OPT->value();
+				$size    = $use_desc_4_label
+					? self::get_label_size_class($OPT->value() . ' ' . $OPT->desc())
+					: self::get_label_size_class($OPT->value());
+				$desc    = $OPT->desc();// no self::prep_answer
+				$answer  = is_numeric($value) && empty($answer) ? 0 : $answer;
+				$value  = is_numeric($answer) && empty($value) ? 0 : $value;
+				$checked = (string) $value == (string) $answer ? ' checked' : '';
+				$opt     = '-' . sanitize_key($value);
+
+				$input_html .= "\n\t\t\t\t" . '<li' . $size . '>';
+				$input_html .= "\n\t\t\t\t\t" . '<label class="' . $radio_class . ' espresso-radio-btn-lbl">';
+				$input_html .= $label_b4 ? "\n\t\t\t\t\t\t" . '<span>' . $label . '</span>&nbsp;' : '';
+				$input_html .= "\n\t\t\t\t\t\t"
+							   . '<input type="radio" name="' . $name . '" id="' . $id . $opt . '" '
+							   . 'class="' . $class . '" value="' . $value . '" '
+							   . 'aria-label="' . esc_attr($required['msg']) . '" ' . $disabled
+							   . $checked . ' ' . $extra . '/>';
+				$input_html .= ! $label_b4
+					? "\n\t\t\t\t\t\t"
+					  . '&nbsp;<span class="espresso-radio-btn-desc">'
+					  . $label
+					  . '</span>'
+					: '';
+				$input_html .= "\n\t\t\t\t\t" . '</label>';
+				$input_html .= $use_desc_4_label
+					? ''
+					: '<span class="espresso-radio-btn-option-desc small-text grey-text">' . $desc . '</span>';
+				$input_html .= "\n\t\t\t\t" . '</li>';
+			}
+		}
+
+		$input_html .= "\n\t\t\t" . '</ul>';
+
+		$input_html = apply_filters('FHEE__EEH_Form_Fields__input_html', $input_html, $label_html, $id);
+		return $label_html . $input_html;
+	}
+
+
+	/**
+	 * generates HTML for form checkbox inputs
+	 *
+	 * @param string $question    label content
+	 * @param string $answer      form input value attribute
+	 * @param array  $options     array of options where array key = option value and array value = option display text
+	 * @param string $name        form input name attribute
+	 * @param string $id          form input css id attribute
+	 * @param string $class       form input css class attribute
+	 * @param array  $required    'label', 'class', and 'msg' - array of values for required "label" content, css
+	 *                            required 'class', and required 'msg' attribute
+	 * @param string $label_class css class attribute for the label
+	 * @param string $disabled    disabled="disabled" or null
+	 * @return string HTML
+	 */
+	public static function checkbox(
+		$question = false,
+		$answer = null,
+		$options = false,
+		$name = false,
+		$id = '',
+		$class = '',
+		$required = false,
+		$required_text = '',
+		$label_class = '',
+		$disabled = false,
+		$label_b4 = false,
+		$system_ID = false,
+		$use_html_entities = true,
+		$add_mobile_label = false
+	) {
+		// need these
+		if (! $question || ! $name || ! $options || empty($options) || ! is_array($options)) {
+			return null;
+		}
+		$answer = maybe_unserialize($answer);
+
+		// prep the answer(s)
+		$answer = is_array($answer) ? $answer : [sanitize_key($answer) => $answer];
+
+		foreach ($answer as $key => $value) {
+			$key            = self::prep_option_value($key);
+			$answer[ $key ] = self::prep_answer($value, $use_html_entities);
+		}
+
+		// prep the required array
+		$required = self::prep_required($required);
+		// set disabled tag
+		$disabled = $answer === null || ! $disabled ? '' : ' disabled="disabled"';
+		// ya gots ta have style man!!!
+		$radio_class = is_admin() ? 'ee-admin-radio-lbl' : $label_class;
+		$class       = empty($class) ? 'espresso-radio-btn-inp' : $class;
+		$extra       = apply_filters('FHEE__EEH_Form_Fields__additional_form_field_attributes', '');
+
+		$label_html   = self::label($question, $required_text, $required['label'], '', $label_class);
+		$mobile_label = self::mobileLabel(
+			$add_mobile_label,
+			$question,
+			$required_text,
+			$required['label'],
+			$label_class
+		);
+
+		$input_html = $mobile_label
+			. '<ul id="' . $id . '-ul" class="espresso-checkbox-options-ul ' . $class . '-ul">';
+
+		$class .= ! empty($system_ID) ? ' ' . $system_ID : '';
+		$class .= ! empty($required['class']) ? ' ' . $required['class'] : '';
+
+		foreach ($options as $OPT) {
+			$value = $OPT->value();// self::prep_option_value( $OPT->value() );
+			$size  = self::get_label_size_class($OPT->value() . ' ' . $OPT->desc());
+			$text  = self::prep_answer($OPT->value());
+			$desc  = $OPT->desc();
+			$opt   = '-' . sanitize_key($value);
+
+			$checked = is_array($answer) && in_array($text, $answer) ? ' checked' : '';
+
+			$input_html .= "\n\t\t\t\t" . '<li' . $size . '>';
+			$input_html .= "\n\t\t\t\t\t" . '<label class="' . $radio_class . ' espresso-checkbox-lbl">';
+			$input_html .= $label_b4 ? "\n\t\t\t\t\t\t" . '<span>' . $text . '</span>&nbsp;' : '';
+			$input_html .= "\n\t\t\t\t\t\t"
+						   . '<input type="checkbox" name="' . $name . '[' . $OPT->ID() . ']" '
+						   . 'id="' . $id . $opt . '" class="' . $class . '" value="' . $value . '" '
+						   . 'aria-label="' . esc_attr($required['msg']) . '" ' . $disabled . $checked . ' ' . $extra . '/>';
+			$input_html .= ! $label_b4 ? "\n\t\t\t\t\t\t" . '&nbsp;<span>' . $text . '</span>' : '';
+			$input_html .= "\n\t\t\t\t\t" . '</label>';
+			if (! empty($desc) && $desc != $text) {
+				$input_html .= "\n\t\t\t\t\t"
+							   . ' &nbsp; <br/><div class="espresso-checkbox-option-desc small-text grey-text">'
+							   . $desc
+							   . '</div>';
+			}
+			$input_html .= "\n\t\t\t\t" . '</li>';
+		}
+
+		$input_html .= "\n\t\t\t" . '</ul>';
+
+		$input_html = apply_filters('FHEE__EEH_Form_Fields__input_html', $input_html, $label_html, $id);
+		return $label_html . $input_html;
+	}
+
+
+	/**
+	 * generates HTML for a form datepicker input
+	 *
+	 * @param string $question    label content
+	 * @param string $answer      form input value attribute
+	 * @param string $name        form input name attribute
+	 * @param string $id          form input css id attribute
+	 * @param string $class       form input css class attribute
+	 * @param array  $required    'label', 'class', and 'msg' - array of values for required "label" content, css
+	 *                            required 'class', and required 'msg' attribute
+	 * @param string $label_class css class attribute for the label
+	 * @param string $disabled    disabled="disabled" or null
+	 * @return string HTML
+	 */
+	public static function datepicker(
+		$question = false,
+		$answer = null,
+		$name = false,
+		$id = '',
+		$class = '',
+		$required = false,
+		$required_text = '',
+		$label_class = '',
+		$disabled = false,
+		$system_ID = false,
+		$use_html_entities = true,
+		$add_mobile_label = false
+	) {
+		// need these
+		if (! $question || ! $name) {
+			return null;
+		}
+		// prep the answer
+		$answer = is_array($answer) ? '' : self::prep_answer($answer, $use_html_entities);
+		// prep the required array
+		$required = self::prep_required($required);
+		// set disabled tag
+		$disabled = $answer === null || ! $disabled ? '' : ' disabled="disabled"';
+		// ya gots ta have style man!!!
+		$txt_class = is_admin() ? 'regular-text' : 'espresso-datepicker-inp';
+		$class     = empty($class) ? $txt_class : $class;
+		$class     .= ! empty($system_ID) ? ' ' . $system_ID : '';
+		$class = self::appendInputSizeClass($class, $answer);
+		$extra     = apply_filters('FHEE__EEH_Form_Fields__additional_form_field_attributes', '');
+
+		$label_html   = self::label($question, $required_text, $required['label'], '', $label_class);
+		$mobile_label = self::mobileLabel(
+			$add_mobile_label,
+			$question,
+			$required_text,
+			$required['label'],
+			$label_class,
+			$name
+		);
+
+		$input_html = $mobile_label
+			. '<input type="text" name="' . $name . '" id="' . $id . '" '
+			. 'class="' . $class . ' ' . $required['class'] . ' datepicker" value="' . $answer . '"  '
+			. 'aria-label="' . esc_attr($required['msg']) . '" ' . $disabled . ' ' . $extra . '/>';
+
+		// enqueue scripts
+		wp_register_style(
+			'espresso-ui-theme',
+			EE_GLOBAL_ASSETS_URL . 'css/espresso-ui-theme/jquery-ui-1.10.3.custom.min.css',
+			[],
+			EVENT_ESPRESSO_VERSION
+		);
+		wp_enqueue_style('espresso-ui-theme');
+		wp_enqueue_script('jquery-ui-datepicker');
+
+		$input_html = apply_filters('FHEE__EEH_Form_Fields__input_html', $input_html, $label_html, $id);
+		return $label_html . $input_html;
+	}
+
+
+	/**
+	 *  remove_label_keep_required_msg
+	 *  this will strip out a form input's label HTML while keeping the required text HTML that MUST be before the label
+	 *
+	 * @access public
+	 * @return     string
+	 */
+	public static function remove_label_keep_required_msg($label_html, $required_text)
+	{
+		return $required_text;
+	}
+
+
+	/**
+	 * Simply returns the HTML for a hidden input of the given name and value.
+	 *
+	 * @param string $name
+	 * @param string $value
+	 * @return string HTML
+	 */
+	public static function hidden_input($name, $value, $id = '')
+	{
+		$id = ! empty($id) ? $id : $name;
+		return '<input id="' . $id . '" type="hidden" name="' . $name . '" value="' . $value . '"/>';
+	}
+
+
+	/**
+	 * prep_question
+	 *
+	 * @param string $question
+	 * @return string
+	 */
+	public static function prep_question($question)
+	{
+		return $question;
+	}
+
+
+	/**
+	 *  prep_answer
+	 *
+	 * @param mixed $answer
+	 * @return string
+	 */
+	public static function prep_answer($answer, $use_html_entities = true)
+	{
+		// make sure we convert bools first.  Otherwise (bool) false becomes an empty string which is NOT desired,
+		// we want "0".
+		if (is_bool($answer)) {
+			$answer = $answer ? 1 : 0;
+		}
+		$answer = trim(stripslashes(str_replace('&#039;', "'", $answer)));
+		return $use_html_entities ? htmlentities($answer, ENT_QUOTES, 'UTF-8') : $answer;
+	}
+
+
+	/**
+	 *  prep_answer_options
+	 *
+	 * @param array $QSOs array of EE_Question_Option objects
+	 * @return array
+	 */
+	public static function prep_answer_options($QSOs = [])
+	{
+		$prepped_answer_options = [];
+		if (is_array($QSOs) && ! empty($QSOs)) {
+			foreach ($QSOs as $key => $QSO) {
+				if (! $QSO instanceof EE_Question_Option) {
+					$QSO = EE_Question_Option::new_instance(
+						[
+							'QSO_value' => is_array($QSO) && isset($QSO['id'])
+								? (string) $QSO['id']
+								: (string) $key,
+							'QSO_desc'  => is_array($QSO) && isset($QSO['text'])
+								? (string) $QSO['text']
+								: (string) $QSO,
+						]
+					);
+				}
+				if ($QSO->opt_group()) {
+					$prepped_answer_options[ $QSO->opt_group() ][] = $QSO;
+				} else {
+					$prepped_answer_options[] = $QSO;
+				}
+			}
+		}
+		//      d( $prepped_answer_options );
+		return $prepped_answer_options;
+	}
+
+
+	/**
+	 *  prep_option_value
+	 *
+	 * @param string|int $option_value
+	 * @return string
+	 */
+	public static function prep_option_value($option_value)
+	{
+		return esc_attr(trim(stripslashes($option_value)));
+	}
+
+
+	/**
+	 *  prep_required
+	 *
+	 * @param string|array $required
+	 * @return array
+	 */
+	public static function prep_required($required = [])
+	{
+		// make sure required is an array
+		$required = is_array($required) ? $required : [];
+		// and set some defaults
+		return array_merge(['label' => '', 'class' => '', 'msg' => ''], $required);
+	}
+
+
+	/**
+	 *  get_label_size_class
+	 *
+	 * @param string $value
+	 * @return string
+	 */
+	public static function get_label_size_class($value = false)
+	{
+		if ($value === false || $value === '') {
+			return ' class="medium-lbl"';
+		}
+		// determine length of option value
+		$val_size = strlen($value);
+		switch ($val_size) {
+			case $val_size < 3:
+				$size = ' class="nano-lbl"';
+				break;
+			case $val_size < 6:
+				$size = ' class="micro-lbl"';
+				break;
+			case $val_size < 12:
+				$size = ' class="tiny-lbl"';
+				break;
+			case $val_size < 25:
+				$size = ' class="small-lbl"';
+				break;
+			case $val_size > 100:
+				$size = ' class="big-lbl"';
+				break;
+			default:
+				$size = ' class="medium-lbl"';
+				break;
+		}
+		return $size;
+	}
+
+
+	/**
+	 *  _load_system_dropdowns
+	 *
+	 * @param EE_Question_Form_Input $QFI
+	 * @return array
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	private static function _load_system_dropdowns($QFI)
+	{
+		$QST_system = $QFI->get('QST_system');
+		switch ($QST_system) {
+			case 'state':
+				$QFI = self::generate_state_dropdown($QFI);
+				break;
+			case 'country':
+				$QFI = self::generate_country_dropdown($QFI);
+				break;
+			case 'admin-state':
+				$QFI = self::generate_state_dropdown($QFI, true);
+				break;
+			case 'admin-country':
+				$QFI = self::generate_country_dropdown($QFI, true);
+				break;
+		}
+		return $QFI;
+	}
+
+
+	/**
+	 * This preps dropdowns that are specialized.
+	 *
+	 * @param EE_Question_Form_Input $QFI
+	 *
+	 * @return EE_Question_Form_Input
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 * @since  4.6.0
+	 */
+	protected static function _load_specialized_dropdowns($QFI)
+	{
+		switch ($QFI->get('QST_type')) {
+			case 'STATE':
+				$QFI = self::generate_state_dropdown($QFI);
+				break;
+			case 'COUNTRY':
+				$QFI = self::generate_country_dropdown($QFI);
+				break;
+		}
+		return $QFI;
+	}
+
+
+	/**
+	 *    generate_state_dropdown
+	 *
+	 * @param EE_Question_Form_Input $QST
+	 * @param bool                   $get_all
+	 * @return EE_Question_Form_Input
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function generate_state_dropdown($QST, $get_all = false)
+	{
+		$states = $get_all
+			? EEM_State::instance()->get_all_states()
+			: EEM_State::instance()->get_all_states_of_active_countries();
+		if ($states && count($states) != count($QST->options())) {
+			$QST->set('QST_type', 'DROPDOWN');
+			// if multiple countries, we'll create option groups within the dropdown
+			foreach ($states as $state) {
+				if ($state instanceof EE_State) {
+					$QSO = EE_Question_Option::new_instance(
+						[
+							'QSO_value'   => $state->ID(),
+							'QSO_desc'    => $state->name(),
+							'QST_ID'      => $QST->get('QST_ID'),
+							'QSO_deleted' => false,
+						]
+					);
+					// set option group
+					$QSO->set_opt_group($state->country()->name());
+					// add option to question
+					$QST->add_temp_option($QSO);
+				}
+			}
+		}
+		return $QST;
+	}
+
+
+	/**
+	 *    generate_country_dropdown
+	 *
+	 * @param      $QST
+	 * @param bool $get_all
+	 * @return array
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 * @internal param array $question
+	 */
+	public static function generate_country_dropdown($QST, $get_all = false)
+	{
+		$countries = $get_all
+			? EEM_Country::instance()->get_all_countries()
+			: EEM_Country::instance()->get_all_active_countries();
+		if ($countries && count($countries) != count($QST->options())) {
+			$QST->set('QST_type', 'DROPDOWN');
+			// now add countries
+			foreach ($countries as $country) {
+				if ($country instanceof EE_Country) {
+					$QSO = EE_Question_Option::new_instance(
+						[
+							'QSO_value'   => $country->ID(),
+							'QSO_desc'    => $country->name(),
+							'QST_ID'      => $QST->get('QST_ID'),
+							'QSO_deleted' => false,
+						]
+					);
+					$QST->add_temp_option($QSO);
+				}
+			}
+		}
+		return $QST;
+	}
+
+
+	/**
+	 *  generates options for a month dropdown selector with numbers from 01 to 12
+	 *
+	 * @return array()
+	 */
+	public static function two_digit_months_dropdown_options()
+	{
+		$options = [];
+		for ($x = 1; $x <= 12; $x++) {
+			$mm             = str_pad($x, 2, '0', STR_PAD_LEFT);
+			$options[ $mm ] = $mm;
+		}
+		return EEH_Form_Fields::prep_answer_options($options);
+	}
+
+
+	/**
+	 *  generates a year dropdown selector with numbers for the next ten years
+	 *
+	 * @return array
+	 */
+	public static function next_decade_two_digit_year_dropdown_options()
+	{
+		$options      = [];
+		$current_year = date('y');
+		$next_decade  = $current_year + 10;
+		for ($x = $current_year; $x <= $next_decade; $x++) {
+			$yy             = str_pad($x, 2, '0', STR_PAD_LEFT);
+			$options[ $yy ] = $yy;
+		}
+		return EEH_Form_Fields::prep_answer_options($options);
+	}
+
+
+	/**
+	 * generates a month/year dropdown selector for all registrations matching the given criteria.  Typically used for
+	 * list table filter.
+	 *
+	 * @param string  $cur_date     any currently selected date can be entered here.
+	 * @param string  $status       Registration status
+	 * @param integer $evt_category Event Category ID if the Event Category filter is selected
+	 * @return string                html
+	 * @throws EE_Error
+	 */
+	public static function generate_registration_months_dropdown($cur_date = '', $status = '', $evt_category = 0)
+	{
+		$_where = [];
+		if (! empty($status)) {
+			$_where['STS_ID'] = $status;
+		}
+
+		if ($evt_category > 0) {
+			$_where['Event.Term_Taxonomy.term_id'] = $evt_category;
+		}
+
+		$regdtts = EEM_Registration::instance()->get_reg_months_and_years($_where);
+
+		// setup vals for select input helper
+		$options = [
+			0 => [
+				'text' => esc_html__('Select a Month/Year', 'event_espresso'),
+				'id'   => '',
+			],
+		];
+
+		foreach ($regdtts as $regdtt) {
+			$date      = $regdtt->reg_month . ' ' . $regdtt->reg_year;
+			$options[] = [
+				'text' => $date,
+				'id'   => $date,
+			];
+		}
+
+		return self::select_input('month_range', $options, $cur_date);
+	}
+
+
+	/**
+	 * generates a month/year dropdown selector for all events matching the given criteria
+	 * Typically used for list table filter
+	 *
+	 * @param string $cur_date          any currently selected date can be entered here.
+	 * @param string $status            "view" (i.e. all, today, month, draft)
+	 * @param int    $evt_category      category event belongs to
+	 * @param string $evt_active_status "upcoming", "expired", "active", or "inactive"
+	 * @return string                    html
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function generate_event_months_dropdown(
+		string $cur_date = '',
+		string $status = 'all',
+		int $evt_category = 0,
+		string $evt_active_status = ''
+	): string {
+		// determine what post_status our condition will have for the query.
+		switch ($status) {
+			case 'month':
+			case 'today':
+			case 'all':
+				$where['Event.status'] = ['NOT IN', ['trash']];
+				break;
+			case 'draft':
+				$where['Event.status'] = ['IN', ['draft', 'auto-draft']];
+				break;
+			default:
+				$where['Event.status'] = $status;
+		}
+
+		// categories?
+		if (! empty($evt_category) and $evt_category > 0) {
+			$where['Event.Term_Taxonomy.taxonomy'] = 'espresso_event_categories';
+			$where['Event.Term_Taxonomy.term_id']  = $evt_category;
+		}
+
+		//      $where['DTT_is_primary'] = 1;
+
+		$DTTS = EEM_Datetime::instance()->get_dtt_months_and_years($where, $evt_active_status);
+
+		// let's setup vals for select input helper
+		$options = [
+			0 => [
+				'text' => esc_html__('Select a Month/Year', 'event_espresso'),
+				'id'   => "",
+			],
+		];
+
+
+		// translate month and date
+		global $wp_locale;
+
+		foreach ($DTTS as $DTT) {
+			$localized_date = $wp_locale->get_month($DTT->dtt_month_num) . ' ' . $DTT->dtt_year;
+			$id             = $DTT->dtt_month . ' ' . $DTT->dtt_year;
+			$options[]      = [
+				'text' => $localized_date,
+				'id'   => $id,
+			];
+		}
+
+
+		return self::select_input('month_range', $options, $cur_date);
+	}
+
+
+	/**
+	 * generates the dropdown selector for event categories
+	 * typically used as a filter on list tables.
+	 *
+	 * @param integer $current_cat currently selected category
+	 * @return string               html for dropdown
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function generate_event_category_dropdown($current_cat = -1)
+	{
+		$categories = EEM_Term::instance()->get_all_ee_categories(true);
+		$options    = [
+			'0' => [
+				'text' => esc_html__('All Categories', 'event_espresso'),
+				'id'   => -1,
+			],
+		];
+
+		// setup categories for dropdown
+		foreach ($categories as $category) {
+			$options[] = [
+				'text' => $category->get('name'),
+				'id'   => $category->ID(),
+			];
+		}
+
+		return self::select_input('EVT_CAT', $options, $current_cat);
+	}
+
+
+	/**
+	 *    generate a submit button with or without it's own microform
+	 *    this is the only way to create buttons that are compatible across all themes
+	 *
+	 * @access    public
+	 * @param string      $url              - the form action
+	 * @param string      $ID               - some kind of unique ID, appended with "-sbmt" for the input and "-frm"
+	 *                                      for the form
+	 * @param string      $class            - css classes (separated by spaces if more than one)
+	 * @param string      $text             - what appears on the button
+	 * @param string      $nonce_action     - if using nonces
+	 * @param bool|string $input_only       - whether to print form header and footer. TRUE returns the input without
+	 *                                      the form
+	 * @param string      $extra_attributes - any extra attributes that need to be attached to the form input
+	 * @return    string
+	 */
+	public static function submit_button(
+		$url = '',
+		$ID = '',
+		$class = '',
+		$text = '',
+		$nonce_action = '',
+		$input_only = false,
+		$extra_attributes = ''
+	) {
+		$btn = '';
+		if (empty($url) || empty($ID)) {
+			return $btn;
+		}
+		$text = ! empty($text) ? $text : esc_html__('Submit', 'event_espresso');
+		$btn  .= '<input id="' . $ID . '-btn" class="' . $class . '" '
+				 . 'type="submit" value="' . $text . '" ' . $extra_attributes . '/>';
+		if (! $input_only) {
+			$btn_frm = '<form id="' . $ID . '-frm" method="POST" action="' . $url . '">';
+			$btn_frm .= ! empty($nonce_action)
+				? wp_nonce_field($nonce_action, $nonce_action . '_nonce', true, false)
+				: '';
+			$btn_frm .= $btn;
+			$btn_frm .= '</form>';
+			$btn     = $btn_frm;
+			unset($btn_frm);
+		}
+		return $btn;
+	}
 }

Spacing +135 added lines, -135 removed lines

@@ -108,8 +108,8 @@ 
             $type           = $input_value['input'];
             $value          = $input_value['value'];
 
-            $id    = $form_id ? $form_id . '-' . $input_key : $input_key;
-            $class = $required ? 'required ' . $css_class : $css_class;
+            $id    = $form_id ? $form_id.'-'.$input_key : $input_key;
+            $class = $required ? 'required '.$css_class : $css_class;
 
             // what type of input are we dealing with ?
             switch ($type) {
@@ -161,8 +161,8 @@ 
             }
         } // end foreach( $input_vars as $input_key => $input_value )
 
-        if (! empty($inputs)) {
-            $glue   = "
+        if ( ! empty($inputs)) {
+            $glue = "
                 </li>
                 <li>
                     ";
@@ -175,7 +175,7 @@ 
             </ul>
             ";
         }
-        return $output . implode("\n", $hidden_inputs);
+        return $output.implode("\n", $hidden_inputs);
     }
 
 
@@ -256,7 +256,7 @@ 
             // generate label
             $label = ! empty($label) ? self::adminLabel($id, $label, $required) : '';
             // generate field name
-            $name = ! empty($unique_id) ? $field_name . '[' . $unique_id . ']' : $field_name;
+            $name = ! empty($unique_id) ? $field_name.'['.$unique_id.']' : $field_name;
 
             // we determine what we're building based on the type
             switch ($type) {
@@ -267,14 +267,14 @@ 
                         foreach ($value as $key => $val) {
                             $c_input .= self::adminMulti(
                                 $default,
-                                isset($classes[ $key ]) ? $classes[ $key ] : '',
-                                $field_name . '_' . $value,
+                                isset($classes[$key]) ? $classes[$key] : '',
+                                $field_name.'_'.$value,
                                 $name,
                                 $required,
                                 $tab_index,
                                 $type,
                                 $val,
-                                isset($labels[ $key ]) ? $labels[ $key ] : ''
+                                isset($labels[$key]) ? $labels[$key] : ''
                             );
                         }
                         $field = $c_input;
@@ -300,7 +300,7 @@ 
                 case 'select':
                     $options = [];
                     foreach ($value as $key => $val) {
-                        $options[ $val ] = isset($labels[ $key ]) ? $labels[ $key ] : '';
+                        $options[$val] = isset($labels[$key]) ? $labels[$key] : '';
                     }
                     $field = self::adminSelect($default, $class, $id, $name, $required, $tab_index, $options);
                     break;
@@ -326,7 +326,7 @@ 
                     $field = self::adminText($class, $id, $name, $required, $tab_index, $value);
             }
 
-            $form_fields[ $field_name ] = ['label' => $label, 'field' => $field . $extra_desc];
+            $form_fields[$field_name] = ['label' => $label, 'field' => $field.$extra_desc];
         }
 
         return $form_fields;
@@ -395,7 +395,7 @@ 
         }
         $label = esc_html($label);
         $label_class = self::appendInputSizeClass('', $label);
-        $label_class = $label_class ? ' class="' . $label_class . '"' : '';
+        $label_class = $label_class ? ' class="'.$label_class.'"' : '';
         return "
         <label for='$id'{$label_class}>
             {$input}
@@ -545,7 +545,7 @@ 
         $autosize = true
     ) {
         // if $values was submitted in the wrong format, convert it over
-        if (! empty($values) && (! array_key_exists(0, $values) || ! is_array($values[0]))) {
+        if ( ! empty($values) && ( ! array_key_exists(0, $values) || ! is_array($values[0]))) {
             $converted_values = [];
             foreach ($values as $id => $text) {
                 $converted_values[] = ['id' => $id, 'text' => $text];
@@ -554,19 +554,19 @@ 
         }
 
         $field =
-            '<select id="' . EEH_Formatter::ee_tep_output_string($name)
-            . '" name="' . EEH_Formatter::ee_tep_output_string($name)
+            '<select id="'.EEH_Formatter::ee_tep_output_string($name)
+            . '" name="'.EEH_Formatter::ee_tep_output_string($name)
             . '"';
 
         if (EEH_Formatter::ee_tep_not_null($parameters)) {
-            $field .= ' ' . $parameters;
+            $field .= ' '.$parameters;
         }
         $class = $autosize ? self::appendInputSizeClass($class, $values) : '';
 
-        $field .= ' class="' . $class . '">';
+        $field .= ' class="'.$class.'">';
 
-        if (empty($default) && isset($GLOBALS[ $name ])) {
-            $default = stripslashes($GLOBALS[ $name ]);
+        if (empty($default) && isset($GLOBALS[$name])) {
+            $default = stripslashes($GLOBALS[$name]);
         }
 
         $field .= self::selectInputOption($values, $default);
@@ -582,7 +582,7 @@ 
             $id = is_scalar($values['id']) ? $values['id'] : '';
             $text = is_scalar($values['text']) ? $values['text'] : '';
             $selected = $default == $values['id'] ? ' selected = "selected"' : '';
-            $html_class = isset($values['class']) ? ' class="' . $values['class'] . '"' : '';
+            $html_class = isset($values['class']) ? ' class="'.$values['class'].'"' : '';
             return "<option value='{$id}'{$selected}{$html_class}>{$text}</option>";
         }
         $options = '';
@@ -612,7 +612,7 @@ 
             return $chars;
         }
         // not a primitive? return something big
-        if (! is_scalar($value)) {
+        if ( ! is_scalar($value)) {
             return 500;
         }
         return strlen((string) $value);
@@ -662,11 +662,11 @@ 
         $after_question_group_questions  =
             apply_filters('FHEE__EEH_Form_Fields__generate_question_groups_html__after_question_group_questions', '');
 
-        if (! empty($question_groups)) {
+        if ( ! empty($question_groups)) {
             // loop thru question groups
             foreach ($question_groups as $QSG) {
                 // check that questions exist
-                if (! empty($QSG['QSG_questions'])) {
+                if ( ! empty($QSG['QSG_questions'])) {
                     // use fieldsets
                     $html .= "\n\t"
                              . '<'
@@ -691,7 +691,7 @@ 
                     $html .= $before_question_group_questions;
                     // loop thru questions
                     foreach ($QSG['QSG_questions'] as $question) {
-                        $QFI  = new EE_Question_Form_Input(
+                        $QFI = new EE_Question_Form_Input(
                             $question['qst_obj'],
                             $question['ans_obj'],
                             $question
@@ -699,7 +699,7 @@ 
                         $html .= self::generate_form_input($QFI);
                     }
                     $html .= $after_question_group_questions;
-                    $html .= "\n\t" . '</' . $group_wrapper . '>';
+                    $html .= "\n\t".'</'.$group_wrapper.'>';
                 }
             }
         }
@@ -739,25 +739,25 @@ 
             'input_id'    => '',
             'input_class' => '',
         ];
-        $q_meta         = array_merge($default_q_meta, $q_meta);
+        $q_meta = array_merge($default_q_meta, $q_meta);
 
-        if (! empty($question_groups)) {
+        if ( ! empty($question_groups)) {
             // loop thru question groups
             foreach ($question_groups as $QSG) {
                 if ($QSG instanceof EE_Question_Group) {
                     // check that questions exist
 
                     $where = ['QST_deleted' => 0];
-                    if (! $from_admin) {
+                    if ( ! $from_admin) {
                         $where['QST_admin_only'] = 0;
                     }
                     $questions =
                         $QSG->questions([$where, 'order_by' => ['Question_Group_Question.QGQ_order' => 'ASC']]);
-                    if (! empty($questions)) {
+                    if ( ! empty($questions)) {
                         // use fieldsets
                         $html .= "\n\t"
-                                 . '<' . $group_wrapper . ' class="espresso-question-group-wrap" '
-                                 . 'id="' . $QSG->get('QSG_identifier') . '">';
+                                 . '<'.$group_wrapper.' class="espresso-question-group-wrap" '
+                                 . 'id="'.$QSG->get('QSG_identifier').'">';
                         // group_name
                         if ($QSG->show_group_name()) {
                             $html .= "\n\t\t"
@@ -782,21 +782,21 @@ 
                             /** @var RequestInterface $request */
                             $request      = LoaderFactory::getLoader()->getShared(RequestInterface::class);
                             $request_qstn = $request->getRequestParam('qstn', [], 'string', true);
-                            if (! empty($request_qstn) && isset($q_meta['input_id']) && isset($q_meta['att_nmbr'])) {
+                            if ( ! empty($request_qstn) && isset($q_meta['input_id']) && isset($q_meta['att_nmbr'])) {
                                 // check for answer in $request_qstn in case we are reprocessing a form after an error
-                                if (isset($request_qstn[ $q_meta['input_id'] ][ $qstn_id ])) {
-                                    $answer = is_array($request_qstn[ $q_meta['input_id'] ][ $qstn_id ])
-                                        ? $request_qstn[ $q_meta['input_id'] ][ $qstn_id ]
-                                        : sanitize_text_field($request_qstn[ $q_meta['input_id'] ][ $qstn_id ]);
+                                if (isset($request_qstn[$q_meta['input_id']][$qstn_id])) {
+                                    $answer = is_array($request_qstn[$q_meta['input_id']][$qstn_id])
+                                        ? $request_qstn[$q_meta['input_id']][$qstn_id]
+                                        : sanitize_text_field($request_qstn[$q_meta['input_id']][$qstn_id]);
                                 }
                             } elseif (isset($q_meta['attendee']) && $q_meta['attendee']) {
                                 // attendee data from the session
                                 $answer =
-                                    isset($q_meta['attendee'][ $qstn_id ]) ? $q_meta['attendee'][ $qstn_id ] : null;
+                                    isset($q_meta['attendee'][$qstn_id]) ? $q_meta['attendee'][$qstn_id] : null;
                             }
 
 
-                            $QFI  = new EE_Question_Form_Input(
+                            $QFI = new EE_Question_Form_Input(
                                 $QST,
                                 EE_Answer::new_instance(
                                     [
@@ -811,7 +811,7 @@ 
                             $html .= self::generate_form_input($QFI);
                         }
                         $html .= $after_question_group_questions;
-                        $html .= "\n\t" . '</' . $group_wrapper . '>';
+                        $html .= "\n\t".'</'.$group_wrapper.'>';
                     }
                 }
             }
@@ -993,7 +993,7 @@ 
     ): string {
         $for   = ! empty($name) ? " for='{$name}'" : '';
         $class = ! empty($label_class) ? " class='{$label_class}'" : '';
-        $label = self::prep_question($question) . $required_label;
+        $label = self::prep_question($question).$required_label;
         $label_html = "
             {$required_text}
             <label{$for}{$class}>{$label}</label>";
@@ -1049,7 +1049,7 @@ 
         $extra_attributes = ''
     ) {
         // need these
-        if (! $question || ! $name) {
+        if ( ! $question || ! $name) {
             return null;
         }
         // prep the answer
@@ -1061,9 +1061,9 @@ 
         // ya gots ta have style man!!!
         $txt_class = is_admin() ? 'regular-text' : 'espresso-text-inp';
         $class     = empty($class) ? $txt_class : $class;
-        $class     .= ! empty($system_ID) ? ' ' . $system_ID : '';
+        $class .= ! empty($system_ID) ? ' '.$system_ID : '';
         $class = self::appendInputSizeClass($class, $answer);
-        $class .= ! empty($required['class']) ? ' ' . $required['class'] : '';
+        $class .= ! empty($required['class']) ? ' '.$required['class'] : '';
         $extra_attributes = apply_filters('FHEE__EEH_Form_Fields__additional_form_field_attributes', $extra_attributes);
 
         $label_html = self::label($question, $required_text, $required['label'], $name, $label_class);
@@ -1076,18 +1076,18 @@ 
             $name
         );
 
-        $input_html = $mobile_label . '
+        $input_html = $mobile_label.'
             <input  type="text"
-                    name="' . $name . '"
-                    id="' . $id . '"
-                    class="' . trim($class) . '"
-                    value="' . esc_attr($answer) . '"
-                    aria-label="' . esc_attr($required['msg']) . '"
-                    ' . $disabled . ' ' . $extra_attributes . '
+                    name="' . $name.'"
+                    id="' . $id.'"
+                    class="' . trim($class).'"
+                    value="' . esc_attr($answer).'"
+                    aria-label="' . esc_attr($required['msg']).'"
+                    ' . $disabled.' '.$extra_attributes.'
             />';
 
         $input_html = apply_filters('FHEE__EEH_Form_Fields__input_html', $input_html, $label_html, $id);
-        return $label_html . $input_html;
+        return $label_html.$input_html;
     }
 
 
@@ -1122,7 +1122,7 @@ 
         $add_mobile_label = false
     ) {
         // need these
-        if (! $question || ! $name) {
+        if ( ! $question || ! $name) {
             return null;
         }
         // prep the answer
@@ -1136,9 +1136,9 @@ 
         // set disabled tag
         $disabled = $answer === null || ! $disabled ? '' : ' disabled="disabled"';
         // ya gots ta have style man!!!
-        $class     .= ! empty($system_ID) ? ' ' . $system_ID : '';
-        $class     .= ! empty($required['class']) ? ' ' . $required['class'] : '';
-        $extra     = apply_filters('FHEE__EEH_Form_Fields__additional_form_field_attributes', '');
+        $class     .= ! empty($system_ID) ? ' '.$system_ID : '';
+        $class     .= ! empty($required['class']) ? ' '.$required['class'] : '';
+        $extra = apply_filters('FHEE__EEH_Form_Fields__additional_form_field_attributes', '');
 
         $label_html   = self::label($question, $required_text, $required['label'], $name, $label_class);
         $mobile_label = self::mobileLabel(
@@ -1151,14 +1151,14 @@ 
         );
 
         $input_html = $mobile_label
-            . '<textarea name="' . $name . '" id="' . $id . '" class="' . trim($class) . '" '
-            . 'rows="' . $dimensions['rows'] . '" cols="' . $dimensions['cols'] . '"  '
-            . 'aria-label="' . $required['msg'] . '" ' . $disabled . ' ' . $extra . '>'
+            . '<textarea name="'.$name.'" id="'.$id.'" class="'.trim($class).'" '
+            . 'rows="'.$dimensions['rows'].'" cols="'.$dimensions['cols'].'"  '
+            . 'aria-label="'.$required['msg'].'" '.$disabled.' '.$extra.'>'
              . esc_textarea($answer)
               . '</textarea>';
 
         $input_html = apply_filters('FHEE__EEH_Form_Fields__input_html', $input_html, $label_html, $id);
-        return $label_html . $input_html;
+        return $label_html.$input_html;
     }
 
 
@@ -1196,7 +1196,7 @@ 
     ) {
 
         // need these
-        if (! $question || ! $name || ! $options || empty($options) || ! is_array($options)) {
+        if ( ! $question || ! $name || ! $options || empty($options) || ! is_array($options)) {
             return null;
         }
         // prep the answer
@@ -1208,9 +1208,9 @@ 
         // set disabled tag
         $disabled = $answer === null || ! $disabled ? '' : ' disabled="disabled"';
         // ya gots ta have style man!!!
-        $class     .= ! empty($system_ID) ? ' ' . $system_ID : '';
+        $class .= ! empty($system_ID) ? ' '.$system_ID : '';
         $class = self::appendInputSizeClass($class, $options);
-        $extra     = apply_filters('FHEE__EEH_Form_Fields__additional_form_field_attributes', '');
+        $extra = apply_filters('FHEE__EEH_Form_Fields__additional_form_field_attributes', '');
 
         $label_html   = self::label($question, $required_text, $required['label'], $name, $label_class);
         $mobile_label = self::mobileLabel(
@@ -1223,16 +1223,16 @@ 
         );
 
         $input_html = $mobile_label
-            . '<select name="' . $name . '" id="' . $id . '" class="' . trim($class) . ' ' . $required['class'] . '" '
-            . 'aria-label="' . esc_attr($required['msg']) . '"' . $disabled . ' ' . $extra . '>';
+            . '<select name="'.$name.'" id="'.$id.'" class="'.trim($class).' '.$required['class'].'" '
+            . 'aria-label="'.esc_attr($required['msg']).'"'.$disabled.' '.$extra.'>';
         // recursively count array elements, to determine total number of options
         $only_option = count($options, 1) == 1;
-        if (! $only_option) {
+        if ( ! $only_option) {
             // if there is NO answer set and there are multiple options to choose from, then set the "please select" message as selected
-            $selected   = $answer === null ? ' selected' : '';
+            $selected = $answer === null ? ' selected' : '';
             $input_html .= $add_please_select_option
                 ? "\n\t\t\t\t"
-                  . '<option value=""' . $selected . '>'
+                  . '<option value=""'.$selected.'>'
                   . esc_html__(' - please select - ', 'event_espresso')
                   . '</option>'
                 : '';
@@ -1255,7 +1255,7 @@ 
                 );
         }
 
-        $input_html .= "\n\t\t\t" . '</select>';
+        $input_html .= "\n\t\t\t".'</select>';
 
         $input_html =
             apply_filters(
@@ -1270,7 +1270,7 @@ 
             );
 
         $input_html = apply_filters('FHEE__EEH_Form_Fields__input_html', $input_html, $label_html, $id);
-        return $label_html . $input_html;
+        return $label_html.$input_html;
     }
 
 
@@ -1288,11 +1288,11 @@ 
      */
     private static function _generate_select_option_group($opt_group, $QSOs, $answer, $use_html_entities = true)
     {
-        $html = "\n\t\t\t\t" . '<optgroup label="' . self::prep_option_value($opt_group) . '">';
+        $html = "\n\t\t\t\t".'<optgroup label="'.self::prep_option_value($opt_group).'">';
         foreach ($QSOs as $QSO) {
             $html .= self::_generate_select_option($QSO->value(), $QSO->desc(), $answer, false, $use_html_entities);
         }
-        $html .= "\n\t\t\t\t" . '</optgroup>';
+        $html .= "\n\t\t\t\t".'</optgroup>';
         return $html;
     }
 
@@ -1319,7 +1319,7 @@ 
         $value    = ! empty($value) ? $value : $key;
         $selected = ($answer == $key || $only_option) ? 'selected' : '';
         return "\n\t\t\t\t"
-               . '<option value="' . self::prep_option_value($key) . '" ' . $selected . '> '
+               . '<option value="'.self::prep_option_value($key).'" '.$selected.'> '
                . $value
                . '&nbsp;&nbsp;&nbsp;</option>';
     }
@@ -1364,7 +1364,7 @@ 
         bool $add_mobile_label = false
     ) {
         // need these
-        if (! $question || ! $name || ! $options || empty($options) || ! is_array($options)) {
+        if ( ! $question || ! $name || ! $options || empty($options) || ! is_array($options)) {
             return null;
         }
         // prep the answer
@@ -1388,50 +1388,50 @@ 
         );
 
         $input_html = $mobile_label
-            . '<ul id="' . $id . '-ul" class="espresso-radio-btn-options-ul ' . $class . '-ul">';
+            . '<ul id="'.$id.'-ul" class="espresso-radio-btn-options-ul '.$class.'-ul">';
 
-        $class .= ! empty($system_ID) ? ' ' . $system_ID : '';
-        $class .= ! empty($required['class']) ? ' ' . $required['class'] : '';
+        $class .= ! empty($system_ID) ? ' '.$system_ID : '';
+        $class .= ! empty($required['class']) ? ' '.$required['class'] : '';
 
         foreach ($options as $OPT) {
             if ($OPT instanceof EE_Question_Option) {
                 $value   = self::prep_option_value($OPT->value());
                 $label   = $use_desc_4_label ? $OPT->desc() : $OPT->value();
                 $size    = $use_desc_4_label
-                    ? self::get_label_size_class($OPT->value() . ' ' . $OPT->desc())
+                    ? self::get_label_size_class($OPT->value().' '.$OPT->desc())
                     : self::get_label_size_class($OPT->value());
-                $desc    = $OPT->desc();// no self::prep_answer
+                $desc    = $OPT->desc(); // no self::prep_answer
                 $answer  = is_numeric($value) && empty($answer) ? 0 : $answer;
-                $value  = is_numeric($answer) && empty($value) ? 0 : $value;
+                $value = is_numeric($answer) && empty($value) ? 0 : $value;
                 $checked = (string) $value == (string) $answer ? ' checked' : '';
-                $opt     = '-' . sanitize_key($value);
+                $opt     = '-'.sanitize_key($value);
 
-                $input_html .= "\n\t\t\t\t" . '<li' . $size . '>';
-                $input_html .= "\n\t\t\t\t\t" . '<label class="' . $radio_class . ' espresso-radio-btn-lbl">';
-                $input_html .= $label_b4 ? "\n\t\t\t\t\t\t" . '<span>' . $label . '</span>&nbsp;' : '';
+                $input_html .= "\n\t\t\t\t".'<li'.$size.'>';
+                $input_html .= "\n\t\t\t\t\t".'<label class="'.$radio_class.' espresso-radio-btn-lbl">';
+                $input_html .= $label_b4 ? "\n\t\t\t\t\t\t".'<span>'.$label.'</span>&nbsp;' : '';
                 $input_html .= "\n\t\t\t\t\t\t"
-                               . '<input type="radio" name="' . $name . '" id="' . $id . $opt . '" '
-                               . 'class="' . $class . '" value="' . $value . '" '
-                               . 'aria-label="' . esc_attr($required['msg']) . '" ' . $disabled
-                               . $checked . ' ' . $extra . '/>';
+                               . '<input type="radio" name="'.$name.'" id="'.$id.$opt.'" '
+                               . 'class="'.$class.'" value="'.$value.'" '
+                               . 'aria-label="'.esc_attr($required['msg']).'" '.$disabled
+                               . $checked.' '.$extra.'/>';
                 $input_html .= ! $label_b4
                     ? "\n\t\t\t\t\t\t"
                       . '&nbsp;<span class="espresso-radio-btn-desc">'
                       . $label
                       . '</span>'
                     : '';
-                $input_html .= "\n\t\t\t\t\t" . '</label>';
+                $input_html .= "\n\t\t\t\t\t".'</label>';
                 $input_html .= $use_desc_4_label
                     ? ''
-                    : '<span class="espresso-radio-btn-option-desc small-text grey-text">' . $desc . '</span>';
-                $input_html .= "\n\t\t\t\t" . '</li>';
+                    : '<span class="espresso-radio-btn-option-desc small-text grey-text">'.$desc.'</span>';
+                $input_html .= "\n\t\t\t\t".'</li>';
             }
         }
 
-        $input_html .= "\n\t\t\t" . '</ul>';
+        $input_html .= "\n\t\t\t".'</ul>';
 
         $input_html = apply_filters('FHEE__EEH_Form_Fields__input_html', $input_html, $label_html, $id);
-        return $label_html . $input_html;
+        return $label_html.$input_html;
     }
 
 
@@ -1467,7 +1467,7 @@ 
         $add_mobile_label = false
     ) {
         // need these
-        if (! $question || ! $name || ! $options || empty($options) || ! is_array($options)) {
+        if ( ! $question || ! $name || ! $options || empty($options) || ! is_array($options)) {
             return null;
         }
         $answer = maybe_unserialize($answer);
@@ -1477,7 +1477,7 @@ 
 
         foreach ($answer as $key => $value) {
             $key            = self::prep_option_value($key);
-            $answer[ $key ] = self::prep_answer($value, $use_html_entities);
+            $answer[$key] = self::prep_answer($value, $use_html_entities);
         }
 
         // prep the required array
@@ -1499,42 +1499,42 @@ 
         );
 
         $input_html = $mobile_label
-            . '<ul id="' . $id . '-ul" class="espresso-checkbox-options-ul ' . $class . '-ul">';
+            . '<ul id="'.$id.'-ul" class="espresso-checkbox-options-ul '.$class.'-ul">';
 
-        $class .= ! empty($system_ID) ? ' ' . $system_ID : '';
-        $class .= ! empty($required['class']) ? ' ' . $required['class'] : '';
+        $class .= ! empty($system_ID) ? ' '.$system_ID : '';
+        $class .= ! empty($required['class']) ? ' '.$required['class'] : '';
 
         foreach ($options as $OPT) {
-            $value = $OPT->value();// self::prep_option_value( $OPT->value() );
-            $size  = self::get_label_size_class($OPT->value() . ' ' . $OPT->desc());
+            $value = $OPT->value(); // self::prep_option_value( $OPT->value() );
+            $size  = self::get_label_size_class($OPT->value().' '.$OPT->desc());
             $text  = self::prep_answer($OPT->value());
             $desc  = $OPT->desc();
-            $opt   = '-' . sanitize_key($value);
+            $opt   = '-'.sanitize_key($value);
 
             $checked = is_array($answer) && in_array($text, $answer) ? ' checked' : '';
 
-            $input_html .= "\n\t\t\t\t" . '<li' . $size . '>';
-            $input_html .= "\n\t\t\t\t\t" . '<label class="' . $radio_class . ' espresso-checkbox-lbl">';
-            $input_html .= $label_b4 ? "\n\t\t\t\t\t\t" . '<span>' . $text . '</span>&nbsp;' : '';
+            $input_html .= "\n\t\t\t\t".'<li'.$size.'>';
+            $input_html .= "\n\t\t\t\t\t".'<label class="'.$radio_class.' espresso-checkbox-lbl">';
+            $input_html .= $label_b4 ? "\n\t\t\t\t\t\t".'<span>'.$text.'</span>&nbsp;' : '';
             $input_html .= "\n\t\t\t\t\t\t"
-                           . '<input type="checkbox" name="' . $name . '[' . $OPT->ID() . ']" '
-                           . 'id="' . $id . $opt . '" class="' . $class . '" value="' . $value . '" '
-                           . 'aria-label="' . esc_attr($required['msg']) . '" ' . $disabled . $checked . ' ' . $extra . '/>';
-            $input_html .= ! $label_b4 ? "\n\t\t\t\t\t\t" . '&nbsp;<span>' . $text . '</span>' : '';
-            $input_html .= "\n\t\t\t\t\t" . '</label>';
-            if (! empty($desc) && $desc != $text) {
+                           . '<input type="checkbox" name="'.$name.'['.$OPT->ID().']" '
+                           . 'id="'.$id.$opt.'" class="'.$class.'" value="'.$value.'" '
+                           . 'aria-label="'.esc_attr($required['msg']).'" '.$disabled.$checked.' '.$extra.'/>';
+            $input_html .= ! $label_b4 ? "\n\t\t\t\t\t\t".'&nbsp;<span>'.$text.'</span>' : '';
+            $input_html .= "\n\t\t\t\t\t".'</label>';
+            if ( ! empty($desc) && $desc != $text) {
                 $input_html .= "\n\t\t\t\t\t"
                                . ' &nbsp; <br/><div class="espresso-checkbox-option-desc small-text grey-text">'
                                . $desc
                                . '</div>';
             }
-            $input_html .= "\n\t\t\t\t" . '</li>';
+            $input_html .= "\n\t\t\t\t".'</li>';
         }
 
-        $input_html .= "\n\t\t\t" . '</ul>';
+        $input_html .= "\n\t\t\t".'</ul>';
 
         $input_html = apply_filters('FHEE__EEH_Form_Fields__input_html', $input_html, $label_html, $id);
-        return $label_html . $input_html;
+        return $label_html.$input_html;
     }
 
 
@@ -1567,7 +1567,7 @@ 
         $add_mobile_label = false
     ) {
         // need these
-        if (! $question || ! $name) {
+        if ( ! $question || ! $name) {
             return null;
         }
         // prep the answer
@@ -1579,7 +1579,7 @@ 
         // ya gots ta have style man!!!
         $txt_class = is_admin() ? 'regular-text' : 'espresso-datepicker-inp';
         $class     = empty($class) ? $txt_class : $class;
-        $class     .= ! empty($system_ID) ? ' ' . $system_ID : '';
+        $class .= ! empty($system_ID) ? ' '.$system_ID : '';
         $class = self::appendInputSizeClass($class, $answer);
         $extra     = apply_filters('FHEE__EEH_Form_Fields__additional_form_field_attributes', '');
 
@@ -1594,14 +1594,14 @@ 
         );
 
         $input_html = $mobile_label
-            . '<input type="text" name="' . $name . '" id="' . $id . '" '
-            . 'class="' . $class . ' ' . $required['class'] . ' datepicker" value="' . $answer . '"  '
-            . 'aria-label="' . esc_attr($required['msg']) . '" ' . $disabled . ' ' . $extra . '/>';
+            . '<input type="text" name="'.$name.'" id="'.$id.'" '
+            . 'class="'.$class.' '.$required['class'].' datepicker" value="'.$answer.'"  '
+            . 'aria-label="'.esc_attr($required['msg']).'" '.$disabled.' '.$extra.'/>';
 
         // enqueue scripts
         wp_register_style(
             'espresso-ui-theme',
-            EE_GLOBAL_ASSETS_URL . 'css/espresso-ui-theme/jquery-ui-1.10.3.custom.min.css',
+            EE_GLOBAL_ASSETS_URL.'css/espresso-ui-theme/jquery-ui-1.10.3.custom.min.css',
             [],
             EVENT_ESPRESSO_VERSION
         );
@@ -1609,7 +1609,7 @@ 
         wp_enqueue_script('jquery-ui-datepicker');
 
         $input_html = apply_filters('FHEE__EEH_Form_Fields__input_html', $input_html, $label_html, $id);
-        return $label_html . $input_html;
+        return $label_html.$input_html;
     }
 
 
@@ -1636,7 +1636,7 @@ 
     public static function hidden_input($name, $value, $id = '')
     {
         $id = ! empty($id) ? $id : $name;
-        return '<input id="' . $id . '" type="hidden" name="' . $name . '" value="' . $value . '"/>';
+        return '<input id="'.$id.'" type="hidden" name="'.$name.'" value="'.$value.'"/>';
     }
 
 
@@ -1681,7 +1681,7 @@ 
         $prepped_answer_options = [];
         if (is_array($QSOs) && ! empty($QSOs)) {
             foreach ($QSOs as $key => $QSO) {
-                if (! $QSO instanceof EE_Question_Option) {
+                if ( ! $QSO instanceof EE_Question_Option) {
                     $QSO = EE_Question_Option::new_instance(
                         [
                             'QSO_value' => is_array($QSO) && isset($QSO['id'])
@@ -1694,7 +1694,7 @@ 
                     );
                 }
                 if ($QSO->opt_group()) {
-                    $prepped_answer_options[ $QSO->opt_group() ][] = $QSO;
+                    $prepped_answer_options[$QSO->opt_group()][] = $QSO;
                 } else {
                     $prepped_answer_options[] = $QSO;
                 }
@@ -1906,7 +1906,7 @@ 
         $options = [];
         for ($x = 1; $x <= 12; $x++) {
             $mm             = str_pad($x, 2, '0', STR_PAD_LEFT);
-            $options[ $mm ] = $mm;
+            $options[$mm] = $mm;
         }
         return EEH_Form_Fields::prep_answer_options($options);
     }
@@ -1924,7 +1924,7 @@ 
         $next_decade  = $current_year + 10;
         for ($x = $current_year; $x <= $next_decade; $x++) {
             $yy             = str_pad($x, 2, '0', STR_PAD_LEFT);
-            $options[ $yy ] = $yy;
+            $options[$yy] = $yy;
         }
         return EEH_Form_Fields::prep_answer_options($options);
     }
@@ -1943,7 +1943,7 @@ 
     public static function generate_registration_months_dropdown($cur_date = '', $status = '', $evt_category = 0)
     {
         $_where = [];
-        if (! empty($status)) {
+        if ( ! empty($status)) {
             $_where['STS_ID'] = $status;
         }
 
@@ -1962,7 +1962,7 @@ 
         ];
 
         foreach ($regdtts as $regdtt) {
-            $date      = $regdtt->reg_month . ' ' . $regdtt->reg_year;
+            $date      = $regdtt->reg_month.' '.$regdtt->reg_year;
             $options[] = [
                 'text' => $date,
                 'id'   => $date,
@@ -2006,7 +2006,7 @@ 
         }
 
         // categories?
-        if (! empty($evt_category) and $evt_category > 0) {
+        if ( ! empty($evt_category) and $evt_category > 0) {
             $where['Event.Term_Taxonomy.taxonomy'] = 'espresso_event_categories';
             $where['Event.Term_Taxonomy.term_id']  = $evt_category;
         }
@@ -2028,8 +2028,8 @@ 
         global $wp_locale;
 
         foreach ($DTTS as $DTT) {
-            $localized_date = $wp_locale->get_month($DTT->dtt_month_num) . ' ' . $DTT->dtt_year;
-            $id             = $DTT->dtt_month . ' ' . $DTT->dtt_year;
+            $localized_date = $wp_locale->get_month($DTT->dtt_month_num).' '.$DTT->dtt_year;
+            $id             = $DTT->dtt_month.' '.$DTT->dtt_year;
             $options[]      = [
                 'text' => $localized_date,
                 'id'   => $id,
@@ -2102,16 +2102,16 @@ 
             return $btn;
         }
         $text = ! empty($text) ? $text : esc_html__('Submit', 'event_espresso');
-        $btn  .= '<input id="' . $ID . '-btn" class="' . $class . '" '
-                 . 'type="submit" value="' . $text . '" ' . $extra_attributes . '/>';
-        if (! $input_only) {
-            $btn_frm = '<form id="' . $ID . '-frm" method="POST" action="' . $url . '">';
+        $btn .= '<input id="'.$ID.'-btn" class="'.$class.'" '
+                 . 'type="submit" value="'.$text.'" '.$extra_attributes.'/>';
+        if ( ! $input_only) {
+            $btn_frm = '<form id="'.$ID.'-frm" method="POST" action="'.$url.'">';
             $btn_frm .= ! empty($nonce_action)
-                ? wp_nonce_field($nonce_action, $nonce_action . '_nonce', true, false)
+                ? wp_nonce_field($nonce_action, $nonce_action.'_nonce', true, false)
                 : '';
             $btn_frm .= $btn;
             $btn_frm .= '</form>';
-            $btn     = $btn_frm;
+            $btn = $btn_frm;
             unset($btn_frm);
         }
         return $btn;

core/helpers/EEH_MSG_Template.helper.php

Indentation +1258 added lines, -1258 removed lines

@@ -14,1265 +14,1265 @@
  */
 class EEH_MSG_Template
 {
-    /**
-     * Holds a collection of EE_Message_Template_Pack objects.
-     * @type EE_Messages_Template_Pack_Collection
-     */
-    protected static $_template_pack_collection;
-
-
-    /**
-     * @throws EE_Error
-     */
-    private static function _set_autoloader()
-    {
-        EED_Messages::set_autoloaders();
-    }
-
-
-    /**
-     * generate_new_templates
-     * This will handle the messenger, message_type selection when "adding a new custom template" for an event and will
-     * automatically create the defaults for the event.  The user would then be redirected to edit the default context
-     * for the event.
-     *
-     * @access protected
-     * @param string $messenger     the messenger we are generating templates for
-     * @param array  $message_types array of message types that the templates are generated for.
-     * @param int    $GRP_ID        If a non global template is being generated then it is expected we'll have a GRP_ID
-     *                              to use as the base for the new generated template.
-     * @param bool   $global        true indicates generating templates on messenger activation. false requires GRP_ID
-     *                              for event specific template generation.
-     * @return array  @see EEH_MSG_Template::_create_new_templates for the return value of each element in the array
-     *                for templates that are generated.  If this is an empty array then it means no templates were
-     *                generated which usually means there was an error.  Anything in the array with an empty value for
-     *                `MTP_context` means that it was not a new generated template but just reactivated (which only
-     *                happens for global templates that already exist in the database.
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function generate_new_templates($messenger, $message_types, $GRP_ID = 0, $global = false)
-    {
-        // make sure message_type is an array.
-        $message_types = (array) $message_types;
-        $templates = array();
-
-        if (empty($messenger)) {
-            throw new EE_Error(esc_html__('We need a messenger to generate templates!', 'event_espresso'));
-        }
-
-        // if we STILL have empty $message_types then we need to generate an error message b/c we NEED message types to do the template files.
-        if (empty($message_types)) {
-            throw new EE_Error(esc_html__('We need at least one message type to generate templates!', 'event_espresso'));
-        }
-
-        EEH_MSG_Template::_set_autoloader();
-        foreach ($message_types as $message_type) {
-
-            // if this is global template generation.
-            if ($global) {
-                // let's attempt to get the GRP_ID for this combo IF GRP_ID is empty.
-                if (empty($GRP_ID)) {
-                    $GRP_ID = EEM_Message_Template_Group::instance()->get_one(
-                        array(
-                            array(
-                                'MTP_messenger'    => $messenger,
-                                'MTP_message_type' => $message_type,
-                                'MTP_is_global'    => true,
-                            ),
-                        )
-                    );
-                    $GRP_ID = $GRP_ID instanceof EE_Message_Template_Group ? $GRP_ID->ID() : 0;
-                }
-                // First let's determine if we already HAVE global templates for this messenger and message_type combination.
-                //  If we do then NO generation!!
-                if (EEH_MSG_Template::already_generated($messenger, $message_type, $GRP_ID)) {
-                    $templates[] = array(
-                        'GRP_ID' => $GRP_ID,
-                        'MTP_context' => '',
-                    );
-                    // we already have generated templates for this so let's go to the next message type.
-                    continue;
-                }
-            }
-            $new_message_template_group = EEH_MSG_Template::create_new_templates(
-                $messenger,
-                $message_type,
-                $GRP_ID,
-                $global
-            );
-
-            if (! $new_message_template_group) {
-                continue;
-            }
-            $templates[] = $new_message_template_group;
-        }
-
-        return $templates;
-    }
-
-
-    /**
-     * The purpose of this method is to determine if there are already generated templates in the database for the
-     * given variables.
-     *
-     * @param string $messenger    messenger
-     * @param string $message_type message type
-     * @param int    $GRP_ID       GRP ID ( if a custom template) (if not provided then we're just doing global
-     *                             template check)
-     * @return bool                true = generated, false = hasn't been generated.
-     * @throws EE_Error
-     */
-    public static function already_generated($messenger, $message_type, $GRP_ID = 0)
-    {
-        EEH_MSG_Template::_set_autoloader();
-        // what method we use depends on whether we have an GRP_ID or not
-        $count = empty($GRP_ID)
-            ? EEM_Message_Template::instance()->count(
-                array(
-                    array(
-                        'Message_Template_Group.MTP_messenger'    => $messenger,
-                        'Message_Template_Group.MTP_message_type' => $message_type,
-                        'Message_Template_Group.MTP_is_global'    => true
-                    )
-                )
-            )
-            : EEM_Message_Template::instance()->count(array( array( 'GRP_ID' => $GRP_ID ) ));
-
-        return $count > 0;
-    }
-
-
-    /**
-     * Updates all message templates matching the incoming messengers and message types to active status.
-     *
-     * @static
-     * @param array $messenger_names    Messenger slug
-     * @param array $message_type_names Message type slug
-     * @return  int                         count of updated records.
-     * @throws EE_Error
-     */
-    public static function update_to_active($messenger_names, $message_type_names)
-    {
-        $messenger_names = is_array($messenger_names) ? $messenger_names : array( $messenger_names );
-        $message_type_names = is_array($message_type_names) ? $message_type_names : array( $message_type_names );
-        return EEM_Message_Template_Group::instance()->update(
-            array( 'MTP_is_active' => 1 ),
-            array(
-                array(
-                    'MTP_messenger'     => array( 'IN', $messenger_names ),
-                    'MTP_message_type'  => array( 'IN', $message_type_names )
-                )
-            )
-        );
-    }
-
-
-    /**
-     * Updates all message template groups matching the incoming arguments to inactive status.
-     *
-     * @static
-     * @param array $messenger_names    The messenger slugs.
-     *                                  If empty then all templates matching the message types are marked inactive.
-     *                                  Otherwise only templates matching the messengers and message types.
-     * @param array $message_type_names The message type slugs.
-     *                                  If empty then all templates matching the messengers are marked inactive.
-     *                                  Otherwise only templates matching the messengers and message types.
-     *
-     * @return int  count of updated records.
-     * @throws EE_Error
-     */
-    public static function update_to_inactive($messenger_names = array(), $message_type_names = array())
-    {
-        return EEM_Message_Template_Group::instance()->deactivate_message_template_groups_for(
-            $messenger_names,
-            $message_type_names
-        );
-    }
-
-
-    /**
-     * The purpose of this function is to return all installed message objects
-     * (messengers and message type regardless of whether they are ACTIVE or not)
-     *
-     * @param string $type
-     * @return array array consisting of installed messenger objects and installed message type objects.
-     * @throws EE_Error
-     * @throws ReflectionException
-     * @deprecated 4.9.0
-     * @static
-     */
-    public static function get_installed_message_objects($type = 'all')
-    {
-        self::_set_autoloader();
-        $message_resource_manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
-        return array(
-            'messenger' => $message_resource_manager->installed_messengers(),
-            'message_type' => $message_resource_manager->installed_message_types()
-        );
-    }
-
-
-    /**
-     * This will return an array of shortcodes => labels from the
-     * messenger and message_type objects associated with this
-     * template.
-     *
-     * @param string $message_type
-     * @param string $messenger
-     * @param array  $fields                        What fields we're returning valid shortcodes for.
-     *                                              If empty then we assume all fields are to be returned. Optional.
-     * @param string $context                       What context we're going to return shortcodes for. Optional.
-     * @param bool   $merged                        If TRUE then we don't return shortcodes indexed by field,
-     *                                              but instead an array of the unique shortcodes for all the given (
-     *                                              or all) fields. Optional.
-     * @return array                                an array of shortcodes in the format
-     *                                              array( '[shortcode] => 'label')
-     *                                              OR
-     *                                              FALSE if no shortcodes found.
-     * @throws ReflectionException
-     * @throws EE_Error*@since 4.3.0
-     *
-     */
-    public static function get_shortcodes(
-        $message_type,
-        $messenger,
-        $fields = array(),
-        $context = 'admin',
-        $merged = false
-    ) {
-        $messenger_name = str_replace(' ', '_', ucwords(str_replace('_', ' ', $messenger)));
-        $mt_name = str_replace(' ', '_', ucwords(str_replace('_', ' ', $message_type)));
-        /** @var EE_Message_Resource_Manager $message_resource_manager */
-        $message_resource_manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
-        // convert slug to object
-        $messenger = $message_resource_manager->get_messenger($messenger);
-
-        // if messenger isn't a EE_messenger resource then bail.
-        if (! $messenger instanceof EE_messenger) {
-            return array();
-        }
-
-        // validate class for getting our list of shortcodes
-        $classname = 'EE_Messages_' . $messenger_name . '_' . $mt_name . '_Validator';
-        if (! class_exists($classname)) {
-            $msg[] = esc_html__('The Validator class was unable to load', 'event_espresso');
-            $msg[] = sprintf(
-                esc_html__('The class name compiled was %s. Please check and make sure the spelling and case is correct for the class name and that there is an autoloader in place for this class', 'event_espresso'),
-                $classname
-            );
-            throw new EE_Error(implode('||', $msg));
-        }
-
-        /** @type EE_Messages_Validator $_VLD */
-        $_VLD = new $classname(array(), $context);
-        $valid_shortcodes = $_VLD->get_validators();
-
-        // let's make sure we're only getting the shortcode part of the validators
-        $shortcodes = array();
-        foreach ($valid_shortcodes as $field => $validators) {
-            $shortcodes[ $field ] = $validators['shortcodes'];
-        }
-        $valid_shortcodes = $shortcodes;
-
-        // if not all fields let's make sure we ONLY include the shortcodes for the specified fields.
-        if (! empty($fields)) {
-            $specified_shortcodes = array();
-            foreach ($fields as $field) {
-                if (isset($valid_shortcodes[ $field ])) {
-                    $specified_shortcodes[ $field ] = $valid_shortcodes[ $field ];
-                }
-            }
-            $valid_shortcodes = $specified_shortcodes;
-        }
-
-        // if not merged then let's replace the fields with the localized fields
-        if (! $merged) {
-            // let's get all the fields for the set messenger so that we can get the localized label and use that in the returned array.
-            $field_settings = $messenger->get_template_fields();
-            $localized = array();
-            foreach ($valid_shortcodes as $field => $shortcodes) {
-                // get localized field label
-                if (isset($field_settings[ $field ])) {
-                    // possible that this is used as a main field.
-                    if (empty($field_settings[ $field ])) {
-                        if (isset($field_settings['extra'][ $field ])) {
-                            $_field = $field_settings['extra'][ $field ]['main']['label'];
-                        } else {
-                            $_field = $field;
-                        }
-                    } else {
-                        $_field = $field_settings[ $field ]['label'];
-                    }
-                } elseif (isset($field_settings['extra'])) {
-                    // loop through extra "main fields" and see if any of their children have our field
-                    foreach ($field_settings['extra'] as $fields) {
-                        if (isset($fields[ $field ])) {
-                            $_field = $fields[ $field ]['label'];
-                        } else {
-                            $_field = $field;
-                        }
-                    }
-                } else {
-                    $_field = $field;
-                }
-                if (isset($_field)) {
-                    $localized[ (string) $_field ] = $shortcodes;
-                }
-            }
-            $valid_shortcodes = $localized;
-        }
-
-        // if $merged then let's merge all the shortcodes into one list NOT indexed by field.
-        if ($merged) {
-            $merged_codes = array();
-            foreach ($valid_shortcodes as $shortcode) {
-                foreach ($shortcode as $code => $label) {
-                    if (isset($merged_codes[ $code ])) {
-                        continue;
-                    } else {
-                        $merged_codes[ $code ] = $label;
-                    }
-                }
-            }
-            $valid_shortcodes = $merged_codes;
-        }
-
-        return $valid_shortcodes;
-    }
-
-
-    /**
-     * Get Messenger object.
-     *
-     * @param string $messenger messenger slug for the messenger object we want to retrieve.
-     * @return EE_messenger
-     * @throws ReflectionException
-     * @throws EE_Error*@since 4.3.0
-     * @deprecated 4.9.0
-     */
-    public static function messenger_obj($messenger)
-    {
-        /** @type EE_Message_Resource_Manager $Message_Resource_Manager */
-        $Message_Resource_Manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
-        return $Message_Resource_Manager->get_messenger($messenger);
-    }
-
-
-    /**
-     * get Message type object
-     *
-     * @param string $message_type the slug for the message type object to retrieve
-     * @return EE_message_type
-     * @throws ReflectionException
-     * @throws EE_Error*@since 4.3.0
-     * @deprecated 4.9.0
-     */
-    public static function message_type_obj($message_type)
-    {
-        /** @type EE_Message_Resource_Manager $Message_Resource_Manager */
-        $Message_Resource_Manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
-        return $Message_Resource_Manager->get_message_type($message_type);
-    }
-
-
-    /**
-     * Given a message_type slug, will return whether that message type is active in the system or not.
-     *
-     * @since    4.3.0
-     * @param string $message_type message type to check for.
-     * @return boolean
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function is_mt_active($message_type)
-    {
-        /** @type EE_Message_Resource_Manager $Message_Resource_Manager */
-        $Message_Resource_Manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
-        $active_mts = $Message_Resource_Manager->list_of_active_message_types();
-        return in_array($message_type, $active_mts);
-    }
-
-
-    /**
-     * Given a messenger slug, will return whether that messenger is active in the system or not.
-     *
-     * @since    4.3.0
-     *
-     * @param string $messenger slug for messenger to check.
-     * @return boolean
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function is_messenger_active($messenger)
-    {
-        /** @type EE_Message_Resource_Manager $Message_Resource_Manager */
-        $Message_Resource_Manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
-        $active_messenger = $Message_Resource_Manager->get_active_messenger($messenger);
-        return $active_messenger instanceof EE_messenger;
-    }
-
-
-    /**
-     * Used to return active messengers array stored in the wp options table.
-     * If no value is present in the option then an empty array is returned.
-     *
-     * @deprecated 4.9
-     * @since      4.3.1
-     *
-     * @return array
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function get_active_messengers_in_db()
-    {
-        EE_Error::doing_it_wrong(
-            __METHOD__,
-            esc_html__('Please use EE_Message_Resource_Manager::get_active_messengers_option() instead.', 'event_espresso'),
-            '4.9.0'
-        );
-        /** @var EE_Message_Resource_Manager $Message_Resource_Manager */
-        $Message_Resource_Manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
-        return $Message_Resource_Manager->get_active_messengers_option();
-    }
-
-
-    /**
-     * Used to update the active messengers array stored in the wp options table.
-     *
-     * @since      4.3.1
-     * @deprecated 4.9.0
-     *
-     * @param array $data_to_save Incoming data to save.
-     *
-     * @return bool FALSE if not updated, TRUE if updated.
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function update_active_messengers_in_db($data_to_save)
-    {
-        EE_Error::doing_it_wrong(
-            __METHOD__,
-            esc_html__('Please use EE_Message_Resource_Manager::update_active_messengers_option() instead.', 'event_espresso'),
-            '4.9.0'
-        );
-        /** @var EE_Message_Resource_Manager $Message_Resource_Manager */
-        $Message_Resource_Manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
-        return $Message_Resource_Manager->update_active_messengers_option($data_to_save);
-    }
-
-
-    /**
-     * This does some validation of incoming params, determines what type of url is being prepped and returns the
-     * appropriate url trigger
-     *
-     * @param EE_message_type $message_type
-     * @param EE_Message $message
-     * @param EE_Registration | null $registration  The registration object must be included if this
-     *                                              is going to be a registration trigger url.
-     * @param string $sending_messenger             The (optional) sending messenger for the url.
-     *
-     * @return string
-     * @throws EE_Error
-     */
-    public static function get_url_trigger(
-        EE_message_type $message_type,
-        EE_Message $message,
-        $registration = null,
-        $sending_messenger = ''
-    ) {
-        // first determine if the url can be to the EE_Message object.
-        if (! $message_type->always_generate()) {
-            return EEH_MSG_Template::generate_browser_trigger($message);
-        }
-
-        // if $registration object is not valid then exit early because there's nothing that can be generated.
-        if (! $registration instanceof EE_Registration) {
-            throw new EE_Error(
-                esc_html__('Incoming value for registration is not a valid EE_Registration object.', 'event_espresso')
-            );
-        }
-
-        // validate given context
-        $contexts = $message_type->get_contexts();
-        if ($message->context() !== '' && ! isset($contexts[ $message->context() ])) {
-            throw new EE_Error(
-                sprintf(
-                    esc_html__('The context %s is not a valid context for %s.', 'event_espresso'),
-                    $message->context(),
-                    get_class($message_type)
-                )
-            );
-        }
-
-        // valid sending messenger but only if sending messenger set.  Otherwise generating messenger is used.
-        if (! empty($sending_messenger)) {
-            $with_messengers = $message_type->with_messengers();
-            if (
-                ! isset($with_messengers[ $message->messenger() ])
-                 || ! in_array($sending_messenger, $with_messengers[ $message->messenger() ])
-            ) {
-                throw new EE_Error(
-                    sprintf(
-                        esc_html__(
-                            'The given sending messenger string (%1$s) does not match a valid sending messenger with the %2$s.  If this is incorrect, make sure that the message type has defined this messenger as a sending messenger in its $_with_messengers array.',
-                            'event_espresso'
-                        ),
-                        $sending_messenger,
-                        get_class($message_type)
-                    )
-                );
-            }
-        } else {
-            $sending_messenger = $message->messenger();
-        }
-        return EEH_MSG_Template::generate_url_trigger(
-            $sending_messenger,
-            $message->messenger(),
-            $message->context(),
-            $message->message_type(),
-            $registration,
-            $message->GRP_ID()
-        );
-    }
-
-
-    /**
-     * This returns the url for triggering a in browser view of a specific EE_Message object.
-     * @param EE_Message $message
-     * @return string.
-     */
-    public static function generate_browser_trigger(EE_Message $message)
-    {
-        $query_args = array(
-            'ee' => 'msg_browser_trigger',
-            'token' => $message->MSG_token()
-        );
-        return apply_filters(
-            'FHEE__EEH_MSG_Template__generate_browser_trigger',
-            add_query_arg($query_args, site_url()),
-            $message
-        );
-    }
-
-
-
-
-
-
-    /**
-     * This returns the url for triggering an in browser view of the error saved on the incoming message object.
-     * @param EE_Message $message
-     * @return string
-     */
-    public static function generate_error_display_trigger(EE_Message $message)
-    {
-        return apply_filters(
-            'FHEE__EEH_MSG_Template__generate_error_display_trigger',
-            add_query_arg(
-                array(
-                    'ee' => 'msg_browser_error_trigger',
-                    'token' => $message->MSG_token()
-                ),
-                site_url()
-            ),
-            $message
-        );
-    }
-
-
-    /**
-     * This generates a url trigger for the msg_url_trigger route using the given arguments
-     *
-     * @param string          $sending_messenger      The sending messenger slug.
-     * @param string          $generating_messenger   The generating messenger slug.
-     * @param string          $context                The context for the template.
-     * @param string          $message_type           The message type slug
-     * @param EE_Registration $registration
-     * @param integer         $message_template_group id   The EE_Message_Template_Group ID for the template.
-     * @param integer         $data_id                The id to the EE_Base_Class for getting the data used by the
-     *                                                trigger.
-     * @return string          The generated url.
-     * @throws EE_Error
-     */
-    public static function generate_url_trigger(
-        $sending_messenger,
-        $generating_messenger,
-        $context,
-        $message_type,
-        EE_Registration $registration,
-        $message_template_group,
-        $data_id = 0
-    ) {
-        $query_args = array(
-            'ee' => 'msg_url_trigger',
-            'snd_msgr' => $sending_messenger,
-            'gen_msgr' => $generating_messenger,
-            'message_type' => $message_type,
-            'context' => $context,
-            'token' => $registration->reg_url_link(),
-            'GRP_ID' => $message_template_group,
-            'id' => $data_id
-            );
-        $url = add_query_arg($query_args, get_home_url());
-
-        // made it here so now we can just get the url and filter it.  Filtered globally and by message type.
-        return apply_filters(
-            'FHEE__EEH_MSG_Template__generate_url_trigger',
-            $url,
-            $sending_messenger,
-            $generating_messenger,
-            $context,
-            $message_type,
-            $registration,
-            $message_template_group,
-            $data_id
-        );
-    }
-
-
-
-
-    /**
-     * Return the specific css for the action icon given.
-     *
-     * @param string $type  What action to return.
-     * @return string[]
-     * @since 4.9.0
-     */
-    public static function get_message_action_icon($type)
-    {
-        $action_icons = self::get_message_action_icons();
-        return isset($action_icons[ $type ]) ? $action_icons[ $type ] : [];
-    }
-
-
-    /**
-     * This is used for retrieving the css classes used for the icons representing message actions.
-     *
-     * @since 4.9.0
-     *
-     * @return array
-     */
-    public static function get_message_action_icons()
-    {
-        return apply_filters(
-            'FHEE__EEH_MSG_Template__message_action_icons',
-            array(
-                'view' => array(
-                    'label' => esc_html__('View Message', 'event_espresso'),
-                    'css_class' => 'dashicons dashicons-visibility',
-                ),
-                'error' => array(
-                    'label' => esc_html__('View Error Message', 'event_espresso'),
-                    'css_class' => 'dashicons dashicons-info',
-                ),
-                'see_notifications_for' => array(
-                    'label' => esc_html__('View Related Messages', 'event_espresso'),
-                    'css_class' => 'dashicons dashicons-megaphone',
-                ),
-                'generate_now' => array(
-                    'label' => esc_html__('Generate the message now.', 'event_espresso'),
-                    'css_class' => 'dashicons dashicons-admin-tools',
-                ),
-                'send_now' => array(
-                    'label' => esc_html__('Send Immediately', 'event_espresso'),
-                    'css_class' => 'dashicons dashicons-controls-forward',
-                ),
-                'queue_for_resending' => array(
-                    'label' => esc_html__('Queue for Resending', 'event_espresso'),
-                    'css_class' => 'dashicons dashicons-controls-repeat',
-                ),
-                'view_transaction' => array(
-                    'label' => esc_html__('View related Transaction', 'event_espresso'),
-                    'css_class' => 'dashicons dashicons-cart',
-                )
-            )
-        );
-    }
-
-
-    /**
-     * This returns the url for a given action related to EE_Message.
-     *
-     * @param string     $type         What type of action to return the url for.
-     * @param EE_Message $message      Required for generating the correct url for some types.
-     * @param array      $query_params Any additional query params to be included with the generated url.
-     *
-     * @return string
-     * @throws EE_Error
-     * @throws ReflectionException
-     * @since 4.9.0
-     *
-     */
-    public static function get_message_action_url($type, EE_Message $message = null, $query_params = array())
-    {
-        $action_urls = self::get_message_action_urls($message, $query_params);
-        return isset($action_urls[ $type ])  ? $action_urls[ $type ] : '';
-    }
-
-
-    /**
-     * This returns all the current urls for EE_Message actions.
-     *
-     * @since 4.9.0
-     *
-     * @param EE_Message $message      The EE_Message object required to generate correct urls for some types.
-     * @param array      $query_params Any additional query_params to be included with the generated url.
-     *
-     * @return array
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function get_message_action_urls(EE_Message $message = null, $query_params = array())
-    {
-        EE_Registry::instance()->load_helper('URL');
-        // if $message is not an instance of EE_Message then let's just do a dummy.
-        $message = empty($message) ? EE_Message_Factory::create() : $message;
-        $action_urls =  apply_filters(
-            'FHEE__EEH_MSG_Template__get_message_action_url',
-            array(
-                'view' => EEH_MSG_Template::generate_browser_trigger($message),
-                'error' => EEH_MSG_Template::generate_error_display_trigger($message),
-                'see_notifications_for' => EEH_URL::add_query_args_and_nonce(
-                    array_merge(
-                        array(
-                            'page' => 'espresso_messages',
-                            'action' => 'default',
-                            'filterby' => 1,
-                        ),
-                        $query_params
-                    ),
-                    admin_url('admin.php')
-                ),
-                'generate_now' => EEH_URL::add_query_args_and_nonce(
-                    array(
-                        'page' => 'espresso_messages',
-                        'action' => 'generate_now',
-                        'MSG_ID' => $message->ID()
-                    ),
-                    admin_url('admin.php')
-                ),
-                'send_now' => EEH_URL::add_query_args_and_nonce(
-                    array(
-                        'page' => 'espresso_messages',
-                        'action' => 'send_now',
-                        'MSG_ID' => $message->ID()
-                    ),
-                    admin_url('admin.php')
-                ),
-                'queue_for_resending' => EEH_URL::add_query_args_and_nonce(
-                    array(
-                        'page' => 'espresso_messages',
-                        'action' => 'queue_for_resending',
-                        'MSG_ID' => $message->ID()
-                    ),
-                    admin_url('admin.php')
-                ),
-            )
-        );
-        if (
-            $message->TXN_ID() > 0
-            && EE_Registry::instance()->CAP->current_user_can(
-                'ee_read_transaction',
-                'espresso_transactions_default',
-                $message->TXN_ID()
-            )
-        ) {
-            $action_urls['view_transaction'] = EEH_URL::add_query_args_and_nonce(
-                array(
-                    'page' => 'espresso_transactions',
-                    'action' => 'view_transaction',
-                    'TXN_ID' => $message->TXN_ID()
-                ),
-                admin_url('admin.php')
-            );
-        } else {
-            $action_urls['view_transaction'] = '';
-        }
-        return $action_urls;
-    }
-
-
-    /**
-     * This returns a generated link html including the icon used for the action link for EE_Message actions.
-     *
-     * @param string          $type         What type of action the link is for (if invalid type is passed in then an
-     *                                      empty string is returned)
-     * @param EE_Message|null $message      The EE_Message object (required for some actions to generate correctly)
-     * @param array           $query_params Any extra query params to include in the generated link.
-     *
-     * @return string
-     * @throws EE_Error
-     * @throws ReflectionException
-     * @since 4.9.0
-     *
-     */
-    public static function get_message_action_link($type, EE_Message $message = null, $query_params = array())
-    {
-        $url = EEH_MSG_Template::get_message_action_url($type, $message, $query_params);
-        $icon_css = EEH_MSG_Template::get_message_action_icon($type);
-        $label = $icon_css['label'] ?? null;
-        $label = $label ? 'aria-label="' . $label . '"' : '';
-        $class = $label ? ' ee-aria-tooltip' : '';
-
-        if (empty($url) || empty($icon_css) || ! isset($icon_css['css_class'])) {
-            return '';
-        }
-
-        $icon_css_class = $icon_css['css_class'] . apply_filters(
-            'FHEE__EEH_MSG_Template__get_message_action_link__icon_css_class',
-            ' js-ee-message-action-link ee-message-action-link-' . $type,
-            $type,
-            $message,
-            $query_params
-        );
-
-        return '
+	/**
+	 * Holds a collection of EE_Message_Template_Pack objects.
+	 * @type EE_Messages_Template_Pack_Collection
+	 */
+	protected static $_template_pack_collection;
+
+
+	/**
+	 * @throws EE_Error
+	 */
+	private static function _set_autoloader()
+	{
+		EED_Messages::set_autoloaders();
+	}
+
+
+	/**
+	 * generate_new_templates
+	 * This will handle the messenger, message_type selection when "adding a new custom template" for an event and will
+	 * automatically create the defaults for the event.  The user would then be redirected to edit the default context
+	 * for the event.
+	 *
+	 * @access protected
+	 * @param string $messenger     the messenger we are generating templates for
+	 * @param array  $message_types array of message types that the templates are generated for.
+	 * @param int    $GRP_ID        If a non global template is being generated then it is expected we'll have a GRP_ID
+	 *                              to use as the base for the new generated template.
+	 * @param bool   $global        true indicates generating templates on messenger activation. false requires GRP_ID
+	 *                              for event specific template generation.
+	 * @return array  @see EEH_MSG_Template::_create_new_templates for the return value of each element in the array
+	 *                for templates that are generated.  If this is an empty array then it means no templates were
+	 *                generated which usually means there was an error.  Anything in the array with an empty value for
+	 *                `MTP_context` means that it was not a new generated template but just reactivated (which only
+	 *                happens for global templates that already exist in the database.
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function generate_new_templates($messenger, $message_types, $GRP_ID = 0, $global = false)
+	{
+		// make sure message_type is an array.
+		$message_types = (array) $message_types;
+		$templates = array();
+
+		if (empty($messenger)) {
+			throw new EE_Error(esc_html__('We need a messenger to generate templates!', 'event_espresso'));
+		}
+
+		// if we STILL have empty $message_types then we need to generate an error message b/c we NEED message types to do the template files.
+		if (empty($message_types)) {
+			throw new EE_Error(esc_html__('We need at least one message type to generate templates!', 'event_espresso'));
+		}
+
+		EEH_MSG_Template::_set_autoloader();
+		foreach ($message_types as $message_type) {
+
+			// if this is global template generation.
+			if ($global) {
+				// let's attempt to get the GRP_ID for this combo IF GRP_ID is empty.
+				if (empty($GRP_ID)) {
+					$GRP_ID = EEM_Message_Template_Group::instance()->get_one(
+						array(
+							array(
+								'MTP_messenger'    => $messenger,
+								'MTP_message_type' => $message_type,
+								'MTP_is_global'    => true,
+							),
+						)
+					);
+					$GRP_ID = $GRP_ID instanceof EE_Message_Template_Group ? $GRP_ID->ID() : 0;
+				}
+				// First let's determine if we already HAVE global templates for this messenger and message_type combination.
+				//  If we do then NO generation!!
+				if (EEH_MSG_Template::already_generated($messenger, $message_type, $GRP_ID)) {
+					$templates[] = array(
+						'GRP_ID' => $GRP_ID,
+						'MTP_context' => '',
+					);
+					// we already have generated templates for this so let's go to the next message type.
+					continue;
+				}
+			}
+			$new_message_template_group = EEH_MSG_Template::create_new_templates(
+				$messenger,
+				$message_type,
+				$GRP_ID,
+				$global
+			);
+
+			if (! $new_message_template_group) {
+				continue;
+			}
+			$templates[] = $new_message_template_group;
+		}
+
+		return $templates;
+	}
+
+
+	/**
+	 * The purpose of this method is to determine if there are already generated templates in the database for the
+	 * given variables.
+	 *
+	 * @param string $messenger    messenger
+	 * @param string $message_type message type
+	 * @param int    $GRP_ID       GRP ID ( if a custom template) (if not provided then we're just doing global
+	 *                             template check)
+	 * @return bool                true = generated, false = hasn't been generated.
+	 * @throws EE_Error
+	 */
+	public static function already_generated($messenger, $message_type, $GRP_ID = 0)
+	{
+		EEH_MSG_Template::_set_autoloader();
+		// what method we use depends on whether we have an GRP_ID or not
+		$count = empty($GRP_ID)
+			? EEM_Message_Template::instance()->count(
+				array(
+					array(
+						'Message_Template_Group.MTP_messenger'    => $messenger,
+						'Message_Template_Group.MTP_message_type' => $message_type,
+						'Message_Template_Group.MTP_is_global'    => true
+					)
+				)
+			)
+			: EEM_Message_Template::instance()->count(array( array( 'GRP_ID' => $GRP_ID ) ));
+
+		return $count > 0;
+	}
+
+
+	/**
+	 * Updates all message templates matching the incoming messengers and message types to active status.
+	 *
+	 * @static
+	 * @param array $messenger_names    Messenger slug
+	 * @param array $message_type_names Message type slug
+	 * @return  int                         count of updated records.
+	 * @throws EE_Error
+	 */
+	public static function update_to_active($messenger_names, $message_type_names)
+	{
+		$messenger_names = is_array($messenger_names) ? $messenger_names : array( $messenger_names );
+		$message_type_names = is_array($message_type_names) ? $message_type_names : array( $message_type_names );
+		return EEM_Message_Template_Group::instance()->update(
+			array( 'MTP_is_active' => 1 ),
+			array(
+				array(
+					'MTP_messenger'     => array( 'IN', $messenger_names ),
+					'MTP_message_type'  => array( 'IN', $message_type_names )
+				)
+			)
+		);
+	}
+
+
+	/**
+	 * Updates all message template groups matching the incoming arguments to inactive status.
+	 *
+	 * @static
+	 * @param array $messenger_names    The messenger slugs.
+	 *                                  If empty then all templates matching the message types are marked inactive.
+	 *                                  Otherwise only templates matching the messengers and message types.
+	 * @param array $message_type_names The message type slugs.
+	 *                                  If empty then all templates matching the messengers are marked inactive.
+	 *                                  Otherwise only templates matching the messengers and message types.
+	 *
+	 * @return int  count of updated records.
+	 * @throws EE_Error
+	 */
+	public static function update_to_inactive($messenger_names = array(), $message_type_names = array())
+	{
+		return EEM_Message_Template_Group::instance()->deactivate_message_template_groups_for(
+			$messenger_names,
+			$message_type_names
+		);
+	}
+
+
+	/**
+	 * The purpose of this function is to return all installed message objects
+	 * (messengers and message type regardless of whether they are ACTIVE or not)
+	 *
+	 * @param string $type
+	 * @return array array consisting of installed messenger objects and installed message type objects.
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 * @deprecated 4.9.0
+	 * @static
+	 */
+	public static function get_installed_message_objects($type = 'all')
+	{
+		self::_set_autoloader();
+		$message_resource_manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
+		return array(
+			'messenger' => $message_resource_manager->installed_messengers(),
+			'message_type' => $message_resource_manager->installed_message_types()
+		);
+	}
+
+
+	/**
+	 * This will return an array of shortcodes => labels from the
+	 * messenger and message_type objects associated with this
+	 * template.
+	 *
+	 * @param string $message_type
+	 * @param string $messenger
+	 * @param array  $fields                        What fields we're returning valid shortcodes for.
+	 *                                              If empty then we assume all fields are to be returned. Optional.
+	 * @param string $context                       What context we're going to return shortcodes for. Optional.
+	 * @param bool   $merged                        If TRUE then we don't return shortcodes indexed by field,
+	 *                                              but instead an array of the unique shortcodes for all the given (
+	 *                                              or all) fields. Optional.
+	 * @return array                                an array of shortcodes in the format
+	 *                                              array( '[shortcode] => 'label')
+	 *                                              OR
+	 *                                              FALSE if no shortcodes found.
+	 * @throws ReflectionException
+	 * @throws EE_Error*@since 4.3.0
+	 *
+	 */
+	public static function get_shortcodes(
+		$message_type,
+		$messenger,
+		$fields = array(),
+		$context = 'admin',
+		$merged = false
+	) {
+		$messenger_name = str_replace(' ', '_', ucwords(str_replace('_', ' ', $messenger)));
+		$mt_name = str_replace(' ', '_', ucwords(str_replace('_', ' ', $message_type)));
+		/** @var EE_Message_Resource_Manager $message_resource_manager */
+		$message_resource_manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
+		// convert slug to object
+		$messenger = $message_resource_manager->get_messenger($messenger);
+
+		// if messenger isn't a EE_messenger resource then bail.
+		if (! $messenger instanceof EE_messenger) {
+			return array();
+		}
+
+		// validate class for getting our list of shortcodes
+		$classname = 'EE_Messages_' . $messenger_name . '_' . $mt_name . '_Validator';
+		if (! class_exists($classname)) {
+			$msg[] = esc_html__('The Validator class was unable to load', 'event_espresso');
+			$msg[] = sprintf(
+				esc_html__('The class name compiled was %s. Please check and make sure the spelling and case is correct for the class name and that there is an autoloader in place for this class', 'event_espresso'),
+				$classname
+			);
+			throw new EE_Error(implode('||', $msg));
+		}
+
+		/** @type EE_Messages_Validator $_VLD */
+		$_VLD = new $classname(array(), $context);
+		$valid_shortcodes = $_VLD->get_validators();
+
+		// let's make sure we're only getting the shortcode part of the validators
+		$shortcodes = array();
+		foreach ($valid_shortcodes as $field => $validators) {
+			$shortcodes[ $field ] = $validators['shortcodes'];
+		}
+		$valid_shortcodes = $shortcodes;
+
+		// if not all fields let's make sure we ONLY include the shortcodes for the specified fields.
+		if (! empty($fields)) {
+			$specified_shortcodes = array();
+			foreach ($fields as $field) {
+				if (isset($valid_shortcodes[ $field ])) {
+					$specified_shortcodes[ $field ] = $valid_shortcodes[ $field ];
+				}
+			}
+			$valid_shortcodes = $specified_shortcodes;
+		}
+
+		// if not merged then let's replace the fields with the localized fields
+		if (! $merged) {
+			// let's get all the fields for the set messenger so that we can get the localized label and use that in the returned array.
+			$field_settings = $messenger->get_template_fields();
+			$localized = array();
+			foreach ($valid_shortcodes as $field => $shortcodes) {
+				// get localized field label
+				if (isset($field_settings[ $field ])) {
+					// possible that this is used as a main field.
+					if (empty($field_settings[ $field ])) {
+						if (isset($field_settings['extra'][ $field ])) {
+							$_field = $field_settings['extra'][ $field ]['main']['label'];
+						} else {
+							$_field = $field;
+						}
+					} else {
+						$_field = $field_settings[ $field ]['label'];
+					}
+				} elseif (isset($field_settings['extra'])) {
+					// loop through extra "main fields" and see if any of their children have our field
+					foreach ($field_settings['extra'] as $fields) {
+						if (isset($fields[ $field ])) {
+							$_field = $fields[ $field ]['label'];
+						} else {
+							$_field = $field;
+						}
+					}
+				} else {
+					$_field = $field;
+				}
+				if (isset($_field)) {
+					$localized[ (string) $_field ] = $shortcodes;
+				}
+			}
+			$valid_shortcodes = $localized;
+		}
+
+		// if $merged then let's merge all the shortcodes into one list NOT indexed by field.
+		if ($merged) {
+			$merged_codes = array();
+			foreach ($valid_shortcodes as $shortcode) {
+				foreach ($shortcode as $code => $label) {
+					if (isset($merged_codes[ $code ])) {
+						continue;
+					} else {
+						$merged_codes[ $code ] = $label;
+					}
+				}
+			}
+			$valid_shortcodes = $merged_codes;
+		}
+
+		return $valid_shortcodes;
+	}
+
+
+	/**
+	 * Get Messenger object.
+	 *
+	 * @param string $messenger messenger slug for the messenger object we want to retrieve.
+	 * @return EE_messenger
+	 * @throws ReflectionException
+	 * @throws EE_Error*@since 4.3.0
+	 * @deprecated 4.9.0
+	 */
+	public static function messenger_obj($messenger)
+	{
+		/** @type EE_Message_Resource_Manager $Message_Resource_Manager */
+		$Message_Resource_Manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
+		return $Message_Resource_Manager->get_messenger($messenger);
+	}
+
+
+	/**
+	 * get Message type object
+	 *
+	 * @param string $message_type the slug for the message type object to retrieve
+	 * @return EE_message_type
+	 * @throws ReflectionException
+	 * @throws EE_Error*@since 4.3.0
+	 * @deprecated 4.9.0
+	 */
+	public static function message_type_obj($message_type)
+	{
+		/** @type EE_Message_Resource_Manager $Message_Resource_Manager */
+		$Message_Resource_Manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
+		return $Message_Resource_Manager->get_message_type($message_type);
+	}
+
+
+	/**
+	 * Given a message_type slug, will return whether that message type is active in the system or not.
+	 *
+	 * @since    4.3.0
+	 * @param string $message_type message type to check for.
+	 * @return boolean
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function is_mt_active($message_type)
+	{
+		/** @type EE_Message_Resource_Manager $Message_Resource_Manager */
+		$Message_Resource_Manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
+		$active_mts = $Message_Resource_Manager->list_of_active_message_types();
+		return in_array($message_type, $active_mts);
+	}
+
+
+	/**
+	 * Given a messenger slug, will return whether that messenger is active in the system or not.
+	 *
+	 * @since    4.3.0
+	 *
+	 * @param string $messenger slug for messenger to check.
+	 * @return boolean
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function is_messenger_active($messenger)
+	{
+		/** @type EE_Message_Resource_Manager $Message_Resource_Manager */
+		$Message_Resource_Manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
+		$active_messenger = $Message_Resource_Manager->get_active_messenger($messenger);
+		return $active_messenger instanceof EE_messenger;
+	}
+
+
+	/**
+	 * Used to return active messengers array stored in the wp options table.
+	 * If no value is present in the option then an empty array is returned.
+	 *
+	 * @deprecated 4.9
+	 * @since      4.3.1
+	 *
+	 * @return array
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function get_active_messengers_in_db()
+	{
+		EE_Error::doing_it_wrong(
+			__METHOD__,
+			esc_html__('Please use EE_Message_Resource_Manager::get_active_messengers_option() instead.', 'event_espresso'),
+			'4.9.0'
+		);
+		/** @var EE_Message_Resource_Manager $Message_Resource_Manager */
+		$Message_Resource_Manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
+		return $Message_Resource_Manager->get_active_messengers_option();
+	}
+
+
+	/**
+	 * Used to update the active messengers array stored in the wp options table.
+	 *
+	 * @since      4.3.1
+	 * @deprecated 4.9.0
+	 *
+	 * @param array $data_to_save Incoming data to save.
+	 *
+	 * @return bool FALSE if not updated, TRUE if updated.
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function update_active_messengers_in_db($data_to_save)
+	{
+		EE_Error::doing_it_wrong(
+			__METHOD__,
+			esc_html__('Please use EE_Message_Resource_Manager::update_active_messengers_option() instead.', 'event_espresso'),
+			'4.9.0'
+		);
+		/** @var EE_Message_Resource_Manager $Message_Resource_Manager */
+		$Message_Resource_Manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
+		return $Message_Resource_Manager->update_active_messengers_option($data_to_save);
+	}
+
+
+	/**
+	 * This does some validation of incoming params, determines what type of url is being prepped and returns the
+	 * appropriate url trigger
+	 *
+	 * @param EE_message_type $message_type
+	 * @param EE_Message $message
+	 * @param EE_Registration | null $registration  The registration object must be included if this
+	 *                                              is going to be a registration trigger url.
+	 * @param string $sending_messenger             The (optional) sending messenger for the url.
+	 *
+	 * @return string
+	 * @throws EE_Error
+	 */
+	public static function get_url_trigger(
+		EE_message_type $message_type,
+		EE_Message $message,
+		$registration = null,
+		$sending_messenger = ''
+	) {
+		// first determine if the url can be to the EE_Message object.
+		if (! $message_type->always_generate()) {
+			return EEH_MSG_Template::generate_browser_trigger($message);
+		}
+
+		// if $registration object is not valid then exit early because there's nothing that can be generated.
+		if (! $registration instanceof EE_Registration) {
+			throw new EE_Error(
+				esc_html__('Incoming value for registration is not a valid EE_Registration object.', 'event_espresso')
+			);
+		}
+
+		// validate given context
+		$contexts = $message_type->get_contexts();
+		if ($message->context() !== '' && ! isset($contexts[ $message->context() ])) {
+			throw new EE_Error(
+				sprintf(
+					esc_html__('The context %s is not a valid context for %s.', 'event_espresso'),
+					$message->context(),
+					get_class($message_type)
+				)
+			);
+		}
+
+		// valid sending messenger but only if sending messenger set.  Otherwise generating messenger is used.
+		if (! empty($sending_messenger)) {
+			$with_messengers = $message_type->with_messengers();
+			if (
+				! isset($with_messengers[ $message->messenger() ])
+				 || ! in_array($sending_messenger, $with_messengers[ $message->messenger() ])
+			) {
+				throw new EE_Error(
+					sprintf(
+						esc_html__(
+							'The given sending messenger string (%1$s) does not match a valid sending messenger with the %2$s.  If this is incorrect, make sure that the message type has defined this messenger as a sending messenger in its $_with_messengers array.',
+							'event_espresso'
+						),
+						$sending_messenger,
+						get_class($message_type)
+					)
+				);
+			}
+		} else {
+			$sending_messenger = $message->messenger();
+		}
+		return EEH_MSG_Template::generate_url_trigger(
+			$sending_messenger,
+			$message->messenger(),
+			$message->context(),
+			$message->message_type(),
+			$registration,
+			$message->GRP_ID()
+		);
+	}
+
+
+	/**
+	 * This returns the url for triggering a in browser view of a specific EE_Message object.
+	 * @param EE_Message $message
+	 * @return string.
+	 */
+	public static function generate_browser_trigger(EE_Message $message)
+	{
+		$query_args = array(
+			'ee' => 'msg_browser_trigger',
+			'token' => $message->MSG_token()
+		);
+		return apply_filters(
+			'FHEE__EEH_MSG_Template__generate_browser_trigger',
+			add_query_arg($query_args, site_url()),
+			$message
+		);
+	}
+
+
+
+
+
+
+	/**
+	 * This returns the url for triggering an in browser view of the error saved on the incoming message object.
+	 * @param EE_Message $message
+	 * @return string
+	 */
+	public static function generate_error_display_trigger(EE_Message $message)
+	{
+		return apply_filters(
+			'FHEE__EEH_MSG_Template__generate_error_display_trigger',
+			add_query_arg(
+				array(
+					'ee' => 'msg_browser_error_trigger',
+					'token' => $message->MSG_token()
+				),
+				site_url()
+			),
+			$message
+		);
+	}
+
+
+	/**
+	 * This generates a url trigger for the msg_url_trigger route using the given arguments
+	 *
+	 * @param string          $sending_messenger      The sending messenger slug.
+	 * @param string          $generating_messenger   The generating messenger slug.
+	 * @param string          $context                The context for the template.
+	 * @param string          $message_type           The message type slug
+	 * @param EE_Registration $registration
+	 * @param integer         $message_template_group id   The EE_Message_Template_Group ID for the template.
+	 * @param integer         $data_id                The id to the EE_Base_Class for getting the data used by the
+	 *                                                trigger.
+	 * @return string          The generated url.
+	 * @throws EE_Error
+	 */
+	public static function generate_url_trigger(
+		$sending_messenger,
+		$generating_messenger,
+		$context,
+		$message_type,
+		EE_Registration $registration,
+		$message_template_group,
+		$data_id = 0
+	) {
+		$query_args = array(
+			'ee' => 'msg_url_trigger',
+			'snd_msgr' => $sending_messenger,
+			'gen_msgr' => $generating_messenger,
+			'message_type' => $message_type,
+			'context' => $context,
+			'token' => $registration->reg_url_link(),
+			'GRP_ID' => $message_template_group,
+			'id' => $data_id
+			);
+		$url = add_query_arg($query_args, get_home_url());
+
+		// made it here so now we can just get the url and filter it.  Filtered globally and by message type.
+		return apply_filters(
+			'FHEE__EEH_MSG_Template__generate_url_trigger',
+			$url,
+			$sending_messenger,
+			$generating_messenger,
+			$context,
+			$message_type,
+			$registration,
+			$message_template_group,
+			$data_id
+		);
+	}
+
+
+
+
+	/**
+	 * Return the specific css for the action icon given.
+	 *
+	 * @param string $type  What action to return.
+	 * @return string[]
+	 * @since 4.9.0
+	 */
+	public static function get_message_action_icon($type)
+	{
+		$action_icons = self::get_message_action_icons();
+		return isset($action_icons[ $type ]) ? $action_icons[ $type ] : [];
+	}
+
+
+	/**
+	 * This is used for retrieving the css classes used for the icons representing message actions.
+	 *
+	 * @since 4.9.0
+	 *
+	 * @return array
+	 */
+	public static function get_message_action_icons()
+	{
+		return apply_filters(
+			'FHEE__EEH_MSG_Template__message_action_icons',
+			array(
+				'view' => array(
+					'label' => esc_html__('View Message', 'event_espresso'),
+					'css_class' => 'dashicons dashicons-visibility',
+				),
+				'error' => array(
+					'label' => esc_html__('View Error Message', 'event_espresso'),
+					'css_class' => 'dashicons dashicons-info',
+				),
+				'see_notifications_for' => array(
+					'label' => esc_html__('View Related Messages', 'event_espresso'),
+					'css_class' => 'dashicons dashicons-megaphone',
+				),
+				'generate_now' => array(
+					'label' => esc_html__('Generate the message now.', 'event_espresso'),
+					'css_class' => 'dashicons dashicons-admin-tools',
+				),
+				'send_now' => array(
+					'label' => esc_html__('Send Immediately', 'event_espresso'),
+					'css_class' => 'dashicons dashicons-controls-forward',
+				),
+				'queue_for_resending' => array(
+					'label' => esc_html__('Queue for Resending', 'event_espresso'),
+					'css_class' => 'dashicons dashicons-controls-repeat',
+				),
+				'view_transaction' => array(
+					'label' => esc_html__('View related Transaction', 'event_espresso'),
+					'css_class' => 'dashicons dashicons-cart',
+				)
+			)
+		);
+	}
+
+
+	/**
+	 * This returns the url for a given action related to EE_Message.
+	 *
+	 * @param string     $type         What type of action to return the url for.
+	 * @param EE_Message $message      Required for generating the correct url for some types.
+	 * @param array      $query_params Any additional query params to be included with the generated url.
+	 *
+	 * @return string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 * @since 4.9.0
+	 *
+	 */
+	public static function get_message_action_url($type, EE_Message $message = null, $query_params = array())
+	{
+		$action_urls = self::get_message_action_urls($message, $query_params);
+		return isset($action_urls[ $type ])  ? $action_urls[ $type ] : '';
+	}
+
+
+	/**
+	 * This returns all the current urls for EE_Message actions.
+	 *
+	 * @since 4.9.0
+	 *
+	 * @param EE_Message $message      The EE_Message object required to generate correct urls for some types.
+	 * @param array      $query_params Any additional query_params to be included with the generated url.
+	 *
+	 * @return array
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function get_message_action_urls(EE_Message $message = null, $query_params = array())
+	{
+		EE_Registry::instance()->load_helper('URL');
+		// if $message is not an instance of EE_Message then let's just do a dummy.
+		$message = empty($message) ? EE_Message_Factory::create() : $message;
+		$action_urls =  apply_filters(
+			'FHEE__EEH_MSG_Template__get_message_action_url',
+			array(
+				'view' => EEH_MSG_Template::generate_browser_trigger($message),
+				'error' => EEH_MSG_Template::generate_error_display_trigger($message),
+				'see_notifications_for' => EEH_URL::add_query_args_and_nonce(
+					array_merge(
+						array(
+							'page' => 'espresso_messages',
+							'action' => 'default',
+							'filterby' => 1,
+						),
+						$query_params
+					),
+					admin_url('admin.php')
+				),
+				'generate_now' => EEH_URL::add_query_args_and_nonce(
+					array(
+						'page' => 'espresso_messages',
+						'action' => 'generate_now',
+						'MSG_ID' => $message->ID()
+					),
+					admin_url('admin.php')
+				),
+				'send_now' => EEH_URL::add_query_args_and_nonce(
+					array(
+						'page' => 'espresso_messages',
+						'action' => 'send_now',
+						'MSG_ID' => $message->ID()
+					),
+					admin_url('admin.php')
+				),
+				'queue_for_resending' => EEH_URL::add_query_args_and_nonce(
+					array(
+						'page' => 'espresso_messages',
+						'action' => 'queue_for_resending',
+						'MSG_ID' => $message->ID()
+					),
+					admin_url('admin.php')
+				),
+			)
+		);
+		if (
+			$message->TXN_ID() > 0
+			&& EE_Registry::instance()->CAP->current_user_can(
+				'ee_read_transaction',
+				'espresso_transactions_default',
+				$message->TXN_ID()
+			)
+		) {
+			$action_urls['view_transaction'] = EEH_URL::add_query_args_and_nonce(
+				array(
+					'page' => 'espresso_transactions',
+					'action' => 'view_transaction',
+					'TXN_ID' => $message->TXN_ID()
+				),
+				admin_url('admin.php')
+			);
+		} else {
+			$action_urls['view_transaction'] = '';
+		}
+		return $action_urls;
+	}
+
+
+	/**
+	 * This returns a generated link html including the icon used for the action link for EE_Message actions.
+	 *
+	 * @param string          $type         What type of action the link is for (if invalid type is passed in then an
+	 *                                      empty string is returned)
+	 * @param EE_Message|null $message      The EE_Message object (required for some actions to generate correctly)
+	 * @param array           $query_params Any extra query params to include in the generated link.
+	 *
+	 * @return string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 * @since 4.9.0
+	 *
+	 */
+	public static function get_message_action_link($type, EE_Message $message = null, $query_params = array())
+	{
+		$url = EEH_MSG_Template::get_message_action_url($type, $message, $query_params);
+		$icon_css = EEH_MSG_Template::get_message_action_icon($type);
+		$label = $icon_css['label'] ?? null;
+		$label = $label ? 'aria-label="' . $label . '"' : '';
+		$class = $label ? ' ee-aria-tooltip' : '';
+
+		if (empty($url) || empty($icon_css) || ! isset($icon_css['css_class'])) {
+			return '';
+		}
+
+		$icon_css_class = $icon_css['css_class'] . apply_filters(
+			'FHEE__EEH_MSG_Template__get_message_action_link__icon_css_class',
+			' js-ee-message-action-link ee-message-action-link-' . $type,
+			$type,
+			$message,
+			$query_params
+		);
+
+		return '
             <a href="' . $url . '" ' . $label . ' class="button button--icon-only' . $class . '">
                 <span class="' .  esc_attr($icon_css_class) . '"></span>
             </a>';
-    }
-
-
-
-
-
-    /**
-     * This returns an array with keys as reg statuses and values as the corresponding message type slug (filtered).
-     *
-     * @since 4.9.0
-     * @return array
-     */
-    public static function reg_status_to_message_type_array()
-    {
-        return (array) apply_filters(
-            'FHEE__EEH_MSG_Template__reg_status_to_message_type_array',
-            array(
-                RegStatus::APPROVED => 'registration',
-                RegStatus::PENDING_PAYMENT => 'pending_approval',
-                RegStatus::AWAITING_REVIEW => 'not_approved_registration',
-                RegStatus::CANCELLED => 'cancelled_registration',
-                RegStatus::DECLINED => 'declined_registration'
-            )
-        );
-    }
-
-
-
-
-    /**
-     * This returns the corresponding registration message type slug to the given reg status. If there isn't a
-     * match, then returns an empty string.
-     *
-     * @since 4.9.0
-     * @param $reg_status
-     * @return string
-     */
-    public static function convert_reg_status_to_message_type($reg_status)
-    {
-        $reg_status_array = self::reg_status_to_message_type_array();
-        return isset($reg_status_array[ $reg_status ]) ? $reg_status_array[ $reg_status ] : '';
-    }
-
-
-    /**
-     * This returns an array with keys as payment stati and values as the corresponding message type slug (filtered).
-     *
-     * @since 4.9.0
-     * @return array
-     */
-    public static function payment_status_to_message_type_array()
-    {
-        return (array) apply_filters(
-            'FHEE__EEH_MSG_Template__payment_status_to_message_type_array',
-            array(
-                EEM_Payment::status_id_approved => 'payment',
-                EEM_Payment::status_id_pending => 'payment_pending',
-                EEM_Payment::status_id_cancelled => 'payment_cancelled',
-                EEM_Payment::status_id_declined => 'payment_declined',
-                EEM_Payment::status_id_failed => 'payment_failed'
-            )
-        );
-    }
-
-
-
-
-    /**
-     * This returns the corresponding payment message type slug to the given payment status. If there isn't a match then
-     * an empty string is returned
-     *
-     * @since 4.9.0
-     * @param $payment_status
-     * @return string
-     */
-    public static function convert_payment_status_to_message_type($payment_status)
-    {
-        $payment_status_array = self::payment_status_to_message_type_array();
-        return isset($payment_status_array[ $payment_status ]) ? $payment_status_array[ $payment_status ] : '';
-    }
-
-
-    /**
-     * This is used to retrieve the template pack for the given name.
-     *
-     * @param string $template_pack_name  should match the set `dbref` property value on the EE_Messages_Template_Pack.
-     *
-     * @return EE_Messages_Template_Pack
-     */
-    public static function get_template_pack($template_pack_name)
-    {
-        if (! self::$_template_pack_collection instanceof EE_Object_Collection) {
-            self::$_template_pack_collection = new EE_Messages_Template_Pack_Collection();
-        }
-
-        // first see if in collection already
-        $template_pack = self::$_template_pack_collection->get_by_name($template_pack_name);
-
-        if ($template_pack instanceof EE_Messages_Template_Pack) {
-            return $template_pack;
-        }
-
-        // nope...let's get it.
-        // not set yet so let's attempt to get it.
-        $pack_class_name = 'EE_Messages_Template_Pack_' . str_replace(
-            ' ',
-            '_',
-            ucwords(
-                str_replace('_', ' ', $template_pack_name)
-            )
-        );
-        if (! class_exists($pack_class_name) && $template_pack_name !== 'default') {
-            return self::get_template_pack('default');
-        } else {
-            $template_pack = new $pack_class_name();
-            self::$_template_pack_collection->add($template_pack);
-            return $template_pack;
-        }
-    }
-
-
-
-
-    /**
-     * Globs template packs installed in core and returns the template pack collection with all installed template packs
-     * in it.
-     *
-     * @since 4.9.0
-     *
-     * @return EE_Messages_Template_Pack_Collection
-     */
-    public static function get_template_pack_collection()
-    {
-        $new_collection = false;
-        if (! self::$_template_pack_collection instanceof EE_Messages_Template_Pack_Collection) {
-            self::$_template_pack_collection = new EE_Messages_Template_Pack_Collection();
-            $new_collection = true;
-        }
-
-        // glob the defaults directory for messages
-        $templates = glob(EE_LIBRARIES . 'messages/defaults/*', GLOB_ONLYDIR);
-        foreach ($templates as $template_path) {
-            // grab folder name
-            $template = basename($template_path);
-
-            if (! $new_collection) {
-                // already have it?
-                if (self::$_template_pack_collection->get_by_name($template) instanceof EE_Messages_Template_Pack) {
-                    continue;
-                }
-            }
-
-            // setup classname.
-            $template_pack_class_name = 'EE_Messages_Template_Pack_' . str_replace(
-                ' ',
-                '_',
-                ucwords(
-                    str_replace(
-                        '_',
-                        ' ',
-                        $template
-                    )
-                )
-            );
-            if (! class_exists($template_pack_class_name)) {
-                continue;
-            }
-            self::$_template_pack_collection->add(new $template_pack_class_name());
-        }
-
-        /**
-         * Filter for plugins to add in any additional template packs
-         * Note the filter name here is for backward compat, this used to be found in EED_Messages.
-         */
-        $additional_template_packs = apply_filters('FHEE__EED_Messages__get_template_packs__template_packs', array());
-        foreach ((array) $additional_template_packs as $template_pack) {
-            if (
-                self::$_template_pack_collection->get_by_name(
-                    $template_pack->dbref
-                ) instanceof EE_Messages_Template_Pack
-            ) {
-                continue;
-            }
-            self::$_template_pack_collection->add($template_pack);
-        }
-        return self::$_template_pack_collection;
-    }
-
-
-    /**
-     * This is a wrapper for the protected _create_new_templates function
-     *
-     * @param string $messenger_name
-     * @param string $message_type_name message type that the templates are being created for
-     * @param int    $GRP_ID
-     * @param bool   $global
-     * @return array
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function create_new_templates($messenger_name, $message_type_name, $GRP_ID = 0, $global = false)
-    {
-        /** @type EE_Message_Resource_Manager $Message_Resource_Manager */
-        $Message_Resource_Manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
-        $messenger = $Message_Resource_Manager->valid_messenger($messenger_name);
-        $message_type = $Message_Resource_Manager->valid_message_type($message_type_name);
-        if (! EEH_MSG_Template::message_type_has_active_templates_for_messenger($messenger, $message_type, $global)) {
-            return array();
-        }
-        // whew made it this far!  Okay, let's go ahead and create the templates then
-        return EEH_MSG_Template::_create_new_templates($messenger, $message_type, $GRP_ID, $global);
-    }
-
-
-    /**
-     * @param EE_messenger     $messenger
-     * @param EE_message_type  $message_type
-     * @param                  $GRP_ID
-     * @param                  $global
-     * @return array|mixed
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    protected static function _create_new_templates(EE_messenger $messenger, EE_message_type $message_type, $GRP_ID, $global)
-    {
-        // if we're creating a custom template then we don't need to use the defaults class
-        if (! $global) {
-            return EEH_MSG_Template::_create_custom_template_group($messenger, $message_type, $GRP_ID);
-        }
-        /** @type EE_Messages_Template_Defaults $Message_Template_Defaults */
-        $Message_Template_Defaults = EE_Registry::factory(
-            'EE_Messages_Template_Defaults',
-            array( $messenger, $message_type, $GRP_ID )
-        );
-        // generate templates
-        $success = $Message_Template_Defaults->create_new_templates();
-
-        // if creating the template failed.  Then we should deactivate the related message_type for the messenger because
-        // its not active if it doesn't have a template.  Note this is only happening for GLOBAL template creation
-        // attempts.
-        if (! $success) {
-            /** @var EE_Message_Resource_Manager $message_resource_manager */
-            $message_resource_manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
-            $message_resource_manager->deactivate_message_type_for_messenger($message_type->name, $messenger->name);
-        }
-
-        /**
-         * $success is in an array in the following format
-         * array(
-         *    'GRP_ID' => $new_grp_id,
-         *    'MTP_context' => $first_context_in_new_templates,
-         * )
-         */
-        return $success;
-    }
-
-
-    /**
-     * This creates a custom template using the incoming GRP_ID
-     *
-     * @param EE_messenger    $messenger
-     * @param EE_message_type $message_type
-     * @param int             $GRP_ID           GRP_ID for the template_group being used as the base
-     * @return  array $success              This will be an array in the format:
-     *                                          array(
-     *                                          'GRP_ID' => $new_grp_id,
-     *                                          'MTP_context' => $first_context_in_created_template
-     *                                          )
-     * @throws EE_Error
-     * @throws ReflectionException
-     * @access private
-     */
-    private static function _create_custom_template_group(EE_messenger $messenger, EE_message_type $message_type, $GRP_ID)
-    {
-        // defaults
-        $success = array( 'GRP_ID' => null, 'MTP_context' => '' );
-        // get the template group to use as a template from the db.  If $GRP_ID is empty then we'll assume the base will be the global template matching the messenger and message type.
-        $Message_Template_Group = empty($GRP_ID)
-            ? EEM_Message_Template_Group::instance()->get_one(
-                array(
-                    array(
-                        'MTP_messenger'    => $messenger->name,
-                        'MTP_message_type' => $message_type->name,
-                        'MTP_is_global'    => true
-                    )
-                )
-            )
-            : EEM_Message_Template_Group::instance()->get_one_by_ID($GRP_ID);
-        // if we don't have a mtg at this point then we need to bail.
-        if (! $Message_Template_Group instanceof EE_Message_Template_Group) {
-            EE_Error::add_error(
-                sprintf(
-                    esc_html__(
-                        'Something went wrong with generating the custom template from this group id: %s.  This usually happens when there is no matching message template group in the db.',
-                        'event_espresso'
-                    ),
-                    $GRP_ID
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return $success;
-        }
-        // let's get all the related message_template objects for this group.
-        $message_templates = $Message_Template_Group->message_templates();
-        // now we have what we need to setup the new template
-        $new_mtg = clone $Message_Template_Group;
-        $new_mtg->set('GRP_ID', 0);
-        $new_mtg->set('MTP_is_global', false);
-
-        /** @var RequestInterface $request */
-        $request = LoaderFactory::getLoader()->getShared(RequestInterface::class);
-        $template_name = $request->isAjax() && $request->requestParamIsSet('templateName')
-            ? $request->getRequestParam('templateName')
-            : sprintf(
-                esc_html__('Custom %1$s', 'event_espresso'),
-                ucwords($message_type->label['singular']) ?? esc_html__('Template', 'event_espresso')
-            );
-        $template_description = $request->isAjax() && $request->requestParamIsSet('templateDescription')
-            ? $request->getRequestParam('templateDescription')
-            : sprintf(
-                esc_html__(
-                    'This is a custom template that was created for the %s messenger and %s message type.',
-                    'event_espresso'
-                ),
-                $new_mtg->messenger_obj()->label['singular'],
-                $new_mtg->message_type_obj()->label['singular']
-            );
-        $new_mtg->set('MTP_name', $template_name);
-        $new_mtg->set('MTP_description', $template_description);
-        // remove ALL relations on this template group so they don't get saved!
-        $new_mtg->_remove_relations('Message_Template');
-        $new_mtg->save();
-        $success['GRP_ID'] = $new_mtg->ID();
-        $success['template_name'] = $template_name;
-        // add new message templates and add relation to.
-        foreach ($message_templates as $message_template) {
-            if (! $message_template instanceof EE_Message_Template) {
-                continue;
-            }
-            $new_message_template = clone $message_template;
-            $new_message_template->set('MTP_ID', 0);
-            $new_message_template->set('GRP_ID', $new_mtg->ID()); // relation
-            $new_message_template->save();
-            if (empty($success['MTP_context']) && $new_message_template->get('MTP_context') !== 'admin') {
-                $success['MTP_context'] = $new_message_template->get('MTP_context');
-            }
-        }
-        return $success;
-    }
-
-
-    /**
-     * message_type_has_active_templates_for_messenger
-     *
-     * @param EE_messenger    $messenger
-     * @param EE_message_type $message_type
-     * @param bool            $global
-     * @return bool
-     * @throws EE_Error
-     */
-    public static function message_type_has_active_templates_for_messenger(
-        EE_messenger $messenger,
-        EE_message_type $message_type,
-        $global = false
-    ) {
-        // is given message_type valid for given messenger (if this is not a global save)
-        if ($global) {
-            return true;
-        }
-        $active_templates = EEM_Message_Template_Group::instance()->count(
-            array(
-                array(
-                    'MTP_is_active'    => true,
-                    'MTP_messenger'    => $messenger->name,
-                    'MTP_message_type' => $message_type->name
-                )
-            )
-        );
-        if ($active_templates > 0) {
-            return true;
-        }
-        EE_Error::add_error(
-            sprintf(
-                esc_html__(
-                    'The %1$s message type is not registered with the %2$s messenger. Please visit the Messenger activation page to assign this message type first if you want to use it.',
-                    'event_espresso'
-                ),
-                $message_type->name,
-                $messenger->name
-            ),
-            __FILE__,
-            __FUNCTION__,
-            __LINE__
-        );
-        return false;
-    }
-
-
-    /**
-     * get_fields
-     * This takes a given messenger and message type and returns all the template fields indexed by context (and with field type).
-     *
-     * @param string $messenger_name    name of EE_messenger
-     * @param string $message_type_name name of EE_message_type
-     * @return array
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function get_fields($messenger_name, $message_type_name)
-    {
-        $template_fields = array();
-        /** @type EE_Message_Resource_Manager $Message_Resource_Manager */
-        $Message_Resource_Manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
-        $messenger = $Message_Resource_Manager->valid_messenger($messenger_name);
-        $message_type = $Message_Resource_Manager->valid_message_type($message_type_name);
-        if (! EEH_MSG_Template::message_type_has_active_templates_for_messenger($messenger, $message_type)) {
-            return array();
-        }
-
-        $excluded_fields_for_messenger = $message_type->excludedFieldsForMessenger($messenger_name);
-
-        // okay now let's assemble an array with the messenger template fields added to the message_type contexts.
-        foreach ($message_type->get_contexts() as $context => $details) {
-            foreach ($messenger->get_template_fields() as $field => $value) {
-                if (in_array($field, $excluded_fields_for_messenger, true)) {
-                    continue;
-                }
-                $template_fields[ $context ][ $field ] = $value;
-            }
-        }
-        if (empty($template_fields)) {
-            EE_Error::add_error(
-                esc_html__('Something went wrong and we couldn\'t get any templates assembled', 'event_espresso'),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return array();
-        }
-        return $template_fields;
-    }
+	}
+
+
+
+
+
+	/**
+	 * This returns an array with keys as reg statuses and values as the corresponding message type slug (filtered).
+	 *
+	 * @since 4.9.0
+	 * @return array
+	 */
+	public static function reg_status_to_message_type_array()
+	{
+		return (array) apply_filters(
+			'FHEE__EEH_MSG_Template__reg_status_to_message_type_array',
+			array(
+				RegStatus::APPROVED => 'registration',
+				RegStatus::PENDING_PAYMENT => 'pending_approval',
+				RegStatus::AWAITING_REVIEW => 'not_approved_registration',
+				RegStatus::CANCELLED => 'cancelled_registration',
+				RegStatus::DECLINED => 'declined_registration'
+			)
+		);
+	}
+
+
+
+
+	/**
+	 * This returns the corresponding registration message type slug to the given reg status. If there isn't a
+	 * match, then returns an empty string.
+	 *
+	 * @since 4.9.0
+	 * @param $reg_status
+	 * @return string
+	 */
+	public static function convert_reg_status_to_message_type($reg_status)
+	{
+		$reg_status_array = self::reg_status_to_message_type_array();
+		return isset($reg_status_array[ $reg_status ]) ? $reg_status_array[ $reg_status ] : '';
+	}
+
+
+	/**
+	 * This returns an array with keys as payment stati and values as the corresponding message type slug (filtered).
+	 *
+	 * @since 4.9.0
+	 * @return array
+	 */
+	public static function payment_status_to_message_type_array()
+	{
+		return (array) apply_filters(
+			'FHEE__EEH_MSG_Template__payment_status_to_message_type_array',
+			array(
+				EEM_Payment::status_id_approved => 'payment',
+				EEM_Payment::status_id_pending => 'payment_pending',
+				EEM_Payment::status_id_cancelled => 'payment_cancelled',
+				EEM_Payment::status_id_declined => 'payment_declined',
+				EEM_Payment::status_id_failed => 'payment_failed'
+			)
+		);
+	}
+
+
+
+
+	/**
+	 * This returns the corresponding payment message type slug to the given payment status. If there isn't a match then
+	 * an empty string is returned
+	 *
+	 * @since 4.9.0
+	 * @param $payment_status
+	 * @return string
+	 */
+	public static function convert_payment_status_to_message_type($payment_status)
+	{
+		$payment_status_array = self::payment_status_to_message_type_array();
+		return isset($payment_status_array[ $payment_status ]) ? $payment_status_array[ $payment_status ] : '';
+	}
+
+
+	/**
+	 * This is used to retrieve the template pack for the given name.
+	 *
+	 * @param string $template_pack_name  should match the set `dbref` property value on the EE_Messages_Template_Pack.
+	 *
+	 * @return EE_Messages_Template_Pack
+	 */
+	public static function get_template_pack($template_pack_name)
+	{
+		if (! self::$_template_pack_collection instanceof EE_Object_Collection) {
+			self::$_template_pack_collection = new EE_Messages_Template_Pack_Collection();
+		}
+
+		// first see if in collection already
+		$template_pack = self::$_template_pack_collection->get_by_name($template_pack_name);
+
+		if ($template_pack instanceof EE_Messages_Template_Pack) {
+			return $template_pack;
+		}
+
+		// nope...let's get it.
+		// not set yet so let's attempt to get it.
+		$pack_class_name = 'EE_Messages_Template_Pack_' . str_replace(
+			' ',
+			'_',
+			ucwords(
+				str_replace('_', ' ', $template_pack_name)
+			)
+		);
+		if (! class_exists($pack_class_name) && $template_pack_name !== 'default') {
+			return self::get_template_pack('default');
+		} else {
+			$template_pack = new $pack_class_name();
+			self::$_template_pack_collection->add($template_pack);
+			return $template_pack;
+		}
+	}
+
+
+
+
+	/**
+	 * Globs template packs installed in core and returns the template pack collection with all installed template packs
+	 * in it.
+	 *
+	 * @since 4.9.0
+	 *
+	 * @return EE_Messages_Template_Pack_Collection
+	 */
+	public static function get_template_pack_collection()
+	{
+		$new_collection = false;
+		if (! self::$_template_pack_collection instanceof EE_Messages_Template_Pack_Collection) {
+			self::$_template_pack_collection = new EE_Messages_Template_Pack_Collection();
+			$new_collection = true;
+		}
+
+		// glob the defaults directory for messages
+		$templates = glob(EE_LIBRARIES . 'messages/defaults/*', GLOB_ONLYDIR);
+		foreach ($templates as $template_path) {
+			// grab folder name
+			$template = basename($template_path);
+
+			if (! $new_collection) {
+				// already have it?
+				if (self::$_template_pack_collection->get_by_name($template) instanceof EE_Messages_Template_Pack) {
+					continue;
+				}
+			}
+
+			// setup classname.
+			$template_pack_class_name = 'EE_Messages_Template_Pack_' . str_replace(
+				' ',
+				'_',
+				ucwords(
+					str_replace(
+						'_',
+						' ',
+						$template
+					)
+				)
+			);
+			if (! class_exists($template_pack_class_name)) {
+				continue;
+			}
+			self::$_template_pack_collection->add(new $template_pack_class_name());
+		}
+
+		/**
+		 * Filter for plugins to add in any additional template packs
+		 * Note the filter name here is for backward compat, this used to be found in EED_Messages.
+		 */
+		$additional_template_packs = apply_filters('FHEE__EED_Messages__get_template_packs__template_packs', array());
+		foreach ((array) $additional_template_packs as $template_pack) {
+			if (
+				self::$_template_pack_collection->get_by_name(
+					$template_pack->dbref
+				) instanceof EE_Messages_Template_Pack
+			) {
+				continue;
+			}
+			self::$_template_pack_collection->add($template_pack);
+		}
+		return self::$_template_pack_collection;
+	}
+
+
+	/**
+	 * This is a wrapper for the protected _create_new_templates function
+	 *
+	 * @param string $messenger_name
+	 * @param string $message_type_name message type that the templates are being created for
+	 * @param int    $GRP_ID
+	 * @param bool   $global
+	 * @return array
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function create_new_templates($messenger_name, $message_type_name, $GRP_ID = 0, $global = false)
+	{
+		/** @type EE_Message_Resource_Manager $Message_Resource_Manager */
+		$Message_Resource_Manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
+		$messenger = $Message_Resource_Manager->valid_messenger($messenger_name);
+		$message_type = $Message_Resource_Manager->valid_message_type($message_type_name);
+		if (! EEH_MSG_Template::message_type_has_active_templates_for_messenger($messenger, $message_type, $global)) {
+			return array();
+		}
+		// whew made it this far!  Okay, let's go ahead and create the templates then
+		return EEH_MSG_Template::_create_new_templates($messenger, $message_type, $GRP_ID, $global);
+	}
+
+
+	/**
+	 * @param EE_messenger     $messenger
+	 * @param EE_message_type  $message_type
+	 * @param                  $GRP_ID
+	 * @param                  $global
+	 * @return array|mixed
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	protected static function _create_new_templates(EE_messenger $messenger, EE_message_type $message_type, $GRP_ID, $global)
+	{
+		// if we're creating a custom template then we don't need to use the defaults class
+		if (! $global) {
+			return EEH_MSG_Template::_create_custom_template_group($messenger, $message_type, $GRP_ID);
+		}
+		/** @type EE_Messages_Template_Defaults $Message_Template_Defaults */
+		$Message_Template_Defaults = EE_Registry::factory(
+			'EE_Messages_Template_Defaults',
+			array( $messenger, $message_type, $GRP_ID )
+		);
+		// generate templates
+		$success = $Message_Template_Defaults->create_new_templates();
+
+		// if creating the template failed.  Then we should deactivate the related message_type for the messenger because
+		// its not active if it doesn't have a template.  Note this is only happening for GLOBAL template creation
+		// attempts.
+		if (! $success) {
+			/** @var EE_Message_Resource_Manager $message_resource_manager */
+			$message_resource_manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
+			$message_resource_manager->deactivate_message_type_for_messenger($message_type->name, $messenger->name);
+		}
+
+		/**
+		 * $success is in an array in the following format
+		 * array(
+		 *    'GRP_ID' => $new_grp_id,
+		 *    'MTP_context' => $first_context_in_new_templates,
+		 * )
+		 */
+		return $success;
+	}
+
+
+	/**
+	 * This creates a custom template using the incoming GRP_ID
+	 *
+	 * @param EE_messenger    $messenger
+	 * @param EE_message_type $message_type
+	 * @param int             $GRP_ID           GRP_ID for the template_group being used as the base
+	 * @return  array $success              This will be an array in the format:
+	 *                                          array(
+	 *                                          'GRP_ID' => $new_grp_id,
+	 *                                          'MTP_context' => $first_context_in_created_template
+	 *                                          )
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 * @access private
+	 */
+	private static function _create_custom_template_group(EE_messenger $messenger, EE_message_type $message_type, $GRP_ID)
+	{
+		// defaults
+		$success = array( 'GRP_ID' => null, 'MTP_context' => '' );
+		// get the template group to use as a template from the db.  If $GRP_ID is empty then we'll assume the base will be the global template matching the messenger and message type.
+		$Message_Template_Group = empty($GRP_ID)
+			? EEM_Message_Template_Group::instance()->get_one(
+				array(
+					array(
+						'MTP_messenger'    => $messenger->name,
+						'MTP_message_type' => $message_type->name,
+						'MTP_is_global'    => true
+					)
+				)
+			)
+			: EEM_Message_Template_Group::instance()->get_one_by_ID($GRP_ID);
+		// if we don't have a mtg at this point then we need to bail.
+		if (! $Message_Template_Group instanceof EE_Message_Template_Group) {
+			EE_Error::add_error(
+				sprintf(
+					esc_html__(
+						'Something went wrong with generating the custom template from this group id: %s.  This usually happens when there is no matching message template group in the db.',
+						'event_espresso'
+					),
+					$GRP_ID
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return $success;
+		}
+		// let's get all the related message_template objects for this group.
+		$message_templates = $Message_Template_Group->message_templates();
+		// now we have what we need to setup the new template
+		$new_mtg = clone $Message_Template_Group;
+		$new_mtg->set('GRP_ID', 0);
+		$new_mtg->set('MTP_is_global', false);
+
+		/** @var RequestInterface $request */
+		$request = LoaderFactory::getLoader()->getShared(RequestInterface::class);
+		$template_name = $request->isAjax() && $request->requestParamIsSet('templateName')
+			? $request->getRequestParam('templateName')
+			: sprintf(
+				esc_html__('Custom %1$s', 'event_espresso'),
+				ucwords($message_type->label['singular']) ?? esc_html__('Template', 'event_espresso')
+			);
+		$template_description = $request->isAjax() && $request->requestParamIsSet('templateDescription')
+			? $request->getRequestParam('templateDescription')
+			: sprintf(
+				esc_html__(
+					'This is a custom template that was created for the %s messenger and %s message type.',
+					'event_espresso'
+				),
+				$new_mtg->messenger_obj()->label['singular'],
+				$new_mtg->message_type_obj()->label['singular']
+			);
+		$new_mtg->set('MTP_name', $template_name);
+		$new_mtg->set('MTP_description', $template_description);
+		// remove ALL relations on this template group so they don't get saved!
+		$new_mtg->_remove_relations('Message_Template');
+		$new_mtg->save();
+		$success['GRP_ID'] = $new_mtg->ID();
+		$success['template_name'] = $template_name;
+		// add new message templates and add relation to.
+		foreach ($message_templates as $message_template) {
+			if (! $message_template instanceof EE_Message_Template) {
+				continue;
+			}
+			$new_message_template = clone $message_template;
+			$new_message_template->set('MTP_ID', 0);
+			$new_message_template->set('GRP_ID', $new_mtg->ID()); // relation
+			$new_message_template->save();
+			if (empty($success['MTP_context']) && $new_message_template->get('MTP_context') !== 'admin') {
+				$success['MTP_context'] = $new_message_template->get('MTP_context');
+			}
+		}
+		return $success;
+	}
+
+
+	/**
+	 * message_type_has_active_templates_for_messenger
+	 *
+	 * @param EE_messenger    $messenger
+	 * @param EE_message_type $message_type
+	 * @param bool            $global
+	 * @return bool
+	 * @throws EE_Error
+	 */
+	public static function message_type_has_active_templates_for_messenger(
+		EE_messenger $messenger,
+		EE_message_type $message_type,
+		$global = false
+	) {
+		// is given message_type valid for given messenger (if this is not a global save)
+		if ($global) {
+			return true;
+		}
+		$active_templates = EEM_Message_Template_Group::instance()->count(
+			array(
+				array(
+					'MTP_is_active'    => true,
+					'MTP_messenger'    => $messenger->name,
+					'MTP_message_type' => $message_type->name
+				)
+			)
+		);
+		if ($active_templates > 0) {
+			return true;
+		}
+		EE_Error::add_error(
+			sprintf(
+				esc_html__(
+					'The %1$s message type is not registered with the %2$s messenger. Please visit the Messenger activation page to assign this message type first if you want to use it.',
+					'event_espresso'
+				),
+				$message_type->name,
+				$messenger->name
+			),
+			__FILE__,
+			__FUNCTION__,
+			__LINE__
+		);
+		return false;
+	}
+
+
+	/**
+	 * get_fields
+	 * This takes a given messenger and message type and returns all the template fields indexed by context (and with field type).
+	 *
+	 * @param string $messenger_name    name of EE_messenger
+	 * @param string $message_type_name name of EE_message_type
+	 * @return array
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function get_fields($messenger_name, $message_type_name)
+	{
+		$template_fields = array();
+		/** @type EE_Message_Resource_Manager $Message_Resource_Manager */
+		$Message_Resource_Manager = EE_Registry::instance()->load_lib('Message_Resource_Manager');
+		$messenger = $Message_Resource_Manager->valid_messenger($messenger_name);
+		$message_type = $Message_Resource_Manager->valid_message_type($message_type_name);
+		if (! EEH_MSG_Template::message_type_has_active_templates_for_messenger($messenger, $message_type)) {
+			return array();
+		}
+
+		$excluded_fields_for_messenger = $message_type->excludedFieldsForMessenger($messenger_name);
+
+		// okay now let's assemble an array with the messenger template fields added to the message_type contexts.
+		foreach ($message_type->get_contexts() as $context => $details) {
+			foreach ($messenger->get_template_fields() as $field => $value) {
+				if (in_array($field, $excluded_fields_for_messenger, true)) {
+					continue;
+				}
+				$template_fields[ $context ][ $field ] = $value;
+			}
+		}
+		if (empty($template_fields)) {
+			EE_Error::add_error(
+				esc_html__('Something went wrong and we couldn\'t get any templates assembled', 'event_espresso'),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return array();
+		}
+		return $template_fields;
+	}
 }

core/helpers/EEH_Event_View.helper.php

Indentation +640 added lines, -640 removed lines

@@ -11,375 +11,375 @@ 
  */
 class EEH_Event_View extends EEH_Base
 {
-    private static ?EE_Event $_event = null;
-
-
-    /**
-     * get_event
-     * attempts to retrieve an EE_Event object any way it can
-     *
-     * @param int|WP_Post $EVT_ID
-     * @return EE_Event|null
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function get_event($EVT_ID = 0): ?EE_Event
-    {
-        // international newspaper?
-        global $post;
-        $EVT_ID = $EVT_ID instanceof WP_Post && $EVT_ID->post_type === EspressoPostType::EVENTS
-            ? $EVT_ID->ID
-            : absint($EVT_ID);
-        // do we already have the Event  you are looking for?
-        if (EEH_Event_View::$_event instanceof EE_Event && $EVT_ID && EEH_Event_View::$_event->ID() === $EVT_ID) {
-            return EEH_Event_View::$_event;
-        }
-        // reset property so that the new event is cached.
-        EEH_Event_View::$_event = null;
-        if (! $EVT_ID && $post instanceof EE_Event) {
-            EEH_Event_View::$_event = $post;
-            return EEH_Event_View::$_event;
-        }
-        // if the post type is for an event and it has a cached event and we don't have a different incoming $EVT_ID
-        // then let's just use that cached event on the $post object.
-        if (
-            $post instanceof WP_Post
-            && $post->post_type === EspressoPostType::EVENTS
-            && isset($post->EE_Event)
-            && (
-                $EVT_ID === 0
-                || $EVT_ID === $post->ID
-            )
-        ) {
-            EEH_Event_View::$_event = $post->EE_Event;
-            return EEH_Event_View::$_event;
-        }
-        // If the event we have isn't an event but we do have an EVT_ID, let's try getting the event using the ID.
-        if (! EEH_Event_View::$_event instanceof EE_Event && $EVT_ID) {
-            EEH_Event_View::$_event = EEM_Event::instance()->get_one_by_ID($EVT_ID);
-        }
-        // no? ok let's try getting the event using the ID.
-        if (! EEH_Event_View::$_event instanceof EE_Event && $post->ID) {
-            $maybe_an_event = EEM_Event::instance()->get_one_by_ID($post->ID);
-            EEH_Event_View::$_event = $maybe_an_event instanceof EE_Event ? $maybe_an_event : EEH_Event_View::$_event;
-        }
-        // ensure Event object is added to WP post object
-        if (
-            $post instanceof WP_Post
-            && $post->post_type === EspressoPostType::EVENTS
-            && EEH_Event_View::$_event instanceof EE_Event
-            && EEH_Event_View::$_event->ID() === $post->ID
-        ) {
-            $post->EE_Event = EEH_Event_View::$_event;
-        }
-        return EEH_Event_View::$_event;
-    }
-
-
-    /**
-     *    display_ticket_selector
-     *
-     * @param int $EVT_ID
-     * @return    boolean
-     * @throws EE_Error
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function display_ticket_selector($EVT_ID = 0)
-    {
-        $event = EEH_Event_View::get_event($EVT_ID);
-        return $event instanceof EE_Event && $event->display_ticket_selector();
-    }
-
-
-    /**
-     *    event_status
-     *
-     * @param int $EVT_ID
-     * @return    string
-     * @throws EE_Error
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function event_status($EVT_ID = 0)
-    {
-        $event = EEH_Event_View::get_event($EVT_ID);
-        return $event instanceof EE_Event ? $event->pretty_active_status(false) : '';
-    }
-
-
-    /**
-     *  event_active_status
-     *
-     * @param int $EVT_ID
-     * @return     string
-     * @throws EE_Error
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function event_active_status($EVT_ID = 0, $echo = true)
-    {
-        $event = EEH_Event_View::get_event($EVT_ID);
-        return $event instanceof EE_Event ? $event->pretty_active_status($echo) : 'inactive';
-    }
-
-
-    /**
-     *  event_has_content_or_excerpt
-     *
-     * @param int $EVT_ID
-     * @return     bool
-     * @throws EE_Error
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function event_has_content_or_excerpt($EVT_ID = 0)
-    {
-        $event                  = EEH_Event_View::get_event($EVT_ID);
-        $has_content_or_excerpt = false;
-        if ($event instanceof EE_Event) {
-            $has_content_or_excerpt = $event->description() != '' || $event->short_description(null, null, true) != '';
-        }
-        if (
-            is_archive()
-            && ! (espresso_display_full_description_in_event_list()
-                  || espresso_display_excerpt_in_event_list())
-        ) {
-            $has_content_or_excerpt = false;
-        }
-        return $has_content_or_excerpt;
-    }
-
-
-    /**
-     *    event_active_status
-     *
-     * @param null $num_words
-     * @param null $more
-     * @return    string
-     */
-    public static function event_content_or_excerpt($num_words = null, $more = null)
-    {
-        global $post;
-        ob_start();
-        if ((is_single()) || (is_archive() && espresso_display_full_description_in_event_list())) {
-            // admin has chosen "full description"
-            // for the "Event Espresso - Events > Templates > Display Description" option
-            the_content();
-        } elseif ((is_archive() && espresso_display_excerpt_in_event_list())) {
-            if (has_excerpt($post->ID)) {
-                // admin has chosen "excerpt (short desc)"
-                // for the "Event Espresso - Events > Templates > Display Description" option
-                // AND an excerpt actually exists
-                the_excerpt();
-            } else {
-                // admin has chosen "excerpt (short desc)"
-                // for the "Event Espresso - Events > Templates > Display Description" option
-                // but NO excerpt actually exists, so we need to create one
-                if (! empty($num_words)) {
-                    if (empty($more)) {
-                        $more_link_text = esc_html__('(more…)', 'event_espresso');
-                        $more           = ' <a href="' . get_permalink() . '"';
-                        $more           .= ' class="more-link"';
-                        $more           .= EED_Events_Archive::link_target();
-                        $more           .= '>' . $more_link_text . '</a>';
-                        $more           = apply_filters('the_content_more_link', $more, $more_link_text);
-                    }
-                    $content = str_replace('NOMORELINK', '', get_the_content('NOMORELINK'));
-
-                    $content = wp_trim_words($content, $num_words, ' ') . $more;
-                } else {
-                    $content = get_the_content();
-                }
-                global $allowedtags;
-                // make sure links are allowed
-                $allowedtags['a'] = isset($allowedtags['a'])
-                    ? $allowedtags['a']
-                    : [];
-                // as well as target attribute
-                $allowedtags['a']['target'] = isset($allowedtags['a']['target'])
-                    ? $allowedtags['a']['target']
-                    : false;
-                // but get previous value so we can reset it
-                $prev_value                 = $allowedtags['a']['target'];
-                $allowedtags['a']['target'] = true;
-                $content                    = wp_kses($content, $allowedtags);
-                $content                    = strip_shortcodes($content);
-                echo apply_filters('the_content', $content);
-                $allowedtags['a']['target'] = $prev_value;
-            }
-        } else {
-            // admin has chosen "none"
-            // for the "Event Espresso - Events > Templates > Display Description" option
-            echo apply_filters('the_content', '');
-        }
-        return ob_get_clean();
-    }
-
-
-    /**
-     *  event_tickets_available
-     *
-     * @param int $EVT_ID
-     * @return     EE_Ticket[]
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function event_tickets_available($EVT_ID = 0)
-    {
-        $event                          = EEH_Event_View::get_event($EVT_ID);
-        $tickets_available_for_purchase = [];
-        if ($event instanceof EE_Event) {
-            $datetimes = EEH_Event_View::get_all_date_obj($EVT_ID, false);
-            foreach ($datetimes as $datetime) {
-                $tickets_available_for_purchase =
-                    array_merge($tickets_available_for_purchase, $datetime->ticket_types_available_for_purchase());
-            }
-        }
-        return $tickets_available_for_purchase;
-    }
-
-
-    /**
-     *    the_event_date
-     *
-     * @param int  $EVT_ID
-     * @param bool $hide_uncategorized
-     * @return    string
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function event_categories($EVT_ID = 0, $hide_uncategorized = true)
-    {
-        $category_links = [];
-        $event          = EEH_Event_View::get_event($EVT_ID);
-        if ($event instanceof EE_Event) {
-            $event_categories = get_the_terms($event->ID(), 'espresso_event_categories');
-            if ($event_categories) {
-                // loop thru terms and create links
-                foreach ($event_categories as $term) {
-                    $url = get_term_link($term, 'espresso_venue_categories');
-                    if (
-                        ! is_wp_error($url)
-                        && (
-                            (
-                                $hide_uncategorized
-                                && strtolower($term->name) != esc_html__('uncategorized', 'event_espresso')
-                            )
-                            || ! $hide_uncategorized
-                        )
-                    ) {
-                        $category_links[] = '<a href="' . esc_url_raw($url) . '" '
-                                            . 'rel="tag" ' . EED_Events_Archive::link_target() . '>'
-                                            . esc_html($term->name)
-                                            . '</a>';
-                    }
-                }
-            }
-        }
-        return implode(', ', $category_links);
-    }
-
-
-    /**
-     *    the_event_date - first date by date order
-     *
-     * @param string $date_format
-     * @param string $time_format
-     * @param int    $EVT_ID
-     * @return    string
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function the_event_date($date_format = 'D M jS', $time_format = 'g:i a', $EVT_ID = 0)
-    {
-        $datetime = EEH_Event_View::get_primary_date_obj($EVT_ID);
-        $format   = ! empty($date_format) && ! empty($time_format)
-                ? $date_format . ' ' . $time_format
-                : $date_format . $time_format;
-        return $datetime instanceof EE_Datetime ? $datetime->get_i18n_datetime('DTT_EVT_start', $format) : '';
-    }
-
-
-    /**
-     *    the_event_end_date - last date by date order
-     *
-     * @param string $date_format
-     * @param string $time_format
-     * @param int    $EVT_ID
-     * @return    string
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function the_event_end_date($date_format = 'D M jS', $time_format = 'g:i a', $EVT_ID = 0)
-    {
-        $datetime = EEH_Event_View::get_last_date_obj($EVT_ID);
-        $format   =
-            ! empty($date_format) && ! empty($time_format)
-                ? $date_format . ' ' . $time_format
-                : $date_format
-                  . $time_format;
-        return $datetime instanceof EE_Datetime ? $datetime->get_i18n_datetime('DTT_EVT_end', $format) : '';
-    }
-
-
-    /**
-     *    the_earliest_event_date - first date chronologically
-     *
-     * @param string $date_format
-     * @param string $time_format
-     * @param int    $EVT_ID
-     * @return    string
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function the_earliest_event_date($date_format = 'D M jS', $time_format = 'g:i a', $EVT_ID = 0)
-    {
-        $datetime = EEH_Event_View::get_earliest_date_obj($EVT_ID);
-        $format   =
-            ! empty($date_format) && ! empty($time_format)
-                ? $date_format . ' ' . $time_format
-                : $date_format
-                  . $time_format;
-        return $datetime instanceof EE_Datetime ? $datetime->get_i18n_datetime('DTT_EVT_start', $format) : '';
-    }
-
-
-    /**
-     *    the_latest_event_date - latest date chronologically
-     *
-     * @param string $date_format
-     * @param string $time_format
-     * @param int    $EVT_ID
-     * @return    string
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function the_latest_event_date($date_format = 'D M jS', $time_format = 'g:i a', $EVT_ID = 0)
-    {
-        $datetime = EEH_Event_View::get_latest_date_obj($EVT_ID);
-        $format   =
-            ! empty($date_format) && ! empty($time_format)
-                ? $date_format . ' ' . $time_format
-                : $date_format
-                  . $time_format;
-        return $datetime instanceof EE_Datetime ? $datetime->get_i18n_datetime('DTT_EVT_end', $format) : '';
-    }
-
-
-    /**
-     *    event_date_as_calendar_page
-     *
-     * @param int $EVT_ID
-     * @return    void
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function event_date_as_calendar_page($EVT_ID = 0)
-    {
-        $datetime = EEH_Event_View::get_primary_date_obj($EVT_ID);
-        if ($datetime instanceof EE_Datetime) {
-            ?>
+	private static ?EE_Event $_event = null;
+
+
+	/**
+	 * get_event
+	 * attempts to retrieve an EE_Event object any way it can
+	 *
+	 * @param int|WP_Post $EVT_ID
+	 * @return EE_Event|null
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function get_event($EVT_ID = 0): ?EE_Event
+	{
+		// international newspaper?
+		global $post;
+		$EVT_ID = $EVT_ID instanceof WP_Post && $EVT_ID->post_type === EspressoPostType::EVENTS
+			? $EVT_ID->ID
+			: absint($EVT_ID);
+		// do we already have the Event  you are looking for?
+		if (EEH_Event_View::$_event instanceof EE_Event && $EVT_ID && EEH_Event_View::$_event->ID() === $EVT_ID) {
+			return EEH_Event_View::$_event;
+		}
+		// reset property so that the new event is cached.
+		EEH_Event_View::$_event = null;
+		if (! $EVT_ID && $post instanceof EE_Event) {
+			EEH_Event_View::$_event = $post;
+			return EEH_Event_View::$_event;
+		}
+		// if the post type is for an event and it has a cached event and we don't have a different incoming $EVT_ID
+		// then let's just use that cached event on the $post object.
+		if (
+			$post instanceof WP_Post
+			&& $post->post_type === EspressoPostType::EVENTS
+			&& isset($post->EE_Event)
+			&& (
+				$EVT_ID === 0
+				|| $EVT_ID === $post->ID
+			)
+		) {
+			EEH_Event_View::$_event = $post->EE_Event;
+			return EEH_Event_View::$_event;
+		}
+		// If the event we have isn't an event but we do have an EVT_ID, let's try getting the event using the ID.
+		if (! EEH_Event_View::$_event instanceof EE_Event && $EVT_ID) {
+			EEH_Event_View::$_event = EEM_Event::instance()->get_one_by_ID($EVT_ID);
+		}
+		// no? ok let's try getting the event using the ID.
+		if (! EEH_Event_View::$_event instanceof EE_Event && $post->ID) {
+			$maybe_an_event = EEM_Event::instance()->get_one_by_ID($post->ID);
+			EEH_Event_View::$_event = $maybe_an_event instanceof EE_Event ? $maybe_an_event : EEH_Event_View::$_event;
+		}
+		// ensure Event object is added to WP post object
+		if (
+			$post instanceof WP_Post
+			&& $post->post_type === EspressoPostType::EVENTS
+			&& EEH_Event_View::$_event instanceof EE_Event
+			&& EEH_Event_View::$_event->ID() === $post->ID
+		) {
+			$post->EE_Event = EEH_Event_View::$_event;
+		}
+		return EEH_Event_View::$_event;
+	}
+
+
+	/**
+	 *    display_ticket_selector
+	 *
+	 * @param int $EVT_ID
+	 * @return    boolean
+	 * @throws EE_Error
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function display_ticket_selector($EVT_ID = 0)
+	{
+		$event = EEH_Event_View::get_event($EVT_ID);
+		return $event instanceof EE_Event && $event->display_ticket_selector();
+	}
+
+
+	/**
+	 *    event_status
+	 *
+	 * @param int $EVT_ID
+	 * @return    string
+	 * @throws EE_Error
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function event_status($EVT_ID = 0)
+	{
+		$event = EEH_Event_View::get_event($EVT_ID);
+		return $event instanceof EE_Event ? $event->pretty_active_status(false) : '';
+	}
+
+
+	/**
+	 *  event_active_status
+	 *
+	 * @param int $EVT_ID
+	 * @return     string
+	 * @throws EE_Error
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function event_active_status($EVT_ID = 0, $echo = true)
+	{
+		$event = EEH_Event_View::get_event($EVT_ID);
+		return $event instanceof EE_Event ? $event->pretty_active_status($echo) : 'inactive';
+	}
+
+
+	/**
+	 *  event_has_content_or_excerpt
+	 *
+	 * @param int $EVT_ID
+	 * @return     bool
+	 * @throws EE_Error
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function event_has_content_or_excerpt($EVT_ID = 0)
+	{
+		$event                  = EEH_Event_View::get_event($EVT_ID);
+		$has_content_or_excerpt = false;
+		if ($event instanceof EE_Event) {
+			$has_content_or_excerpt = $event->description() != '' || $event->short_description(null, null, true) != '';
+		}
+		if (
+			is_archive()
+			&& ! (espresso_display_full_description_in_event_list()
+				  || espresso_display_excerpt_in_event_list())
+		) {
+			$has_content_or_excerpt = false;
+		}
+		return $has_content_or_excerpt;
+	}
+
+
+	/**
+	 *    event_active_status
+	 *
+	 * @param null $num_words
+	 * @param null $more
+	 * @return    string
+	 */
+	public static function event_content_or_excerpt($num_words = null, $more = null)
+	{
+		global $post;
+		ob_start();
+		if ((is_single()) || (is_archive() && espresso_display_full_description_in_event_list())) {
+			// admin has chosen "full description"
+			// for the "Event Espresso - Events > Templates > Display Description" option
+			the_content();
+		} elseif ((is_archive() && espresso_display_excerpt_in_event_list())) {
+			if (has_excerpt($post->ID)) {
+				// admin has chosen "excerpt (short desc)"
+				// for the "Event Espresso - Events > Templates > Display Description" option
+				// AND an excerpt actually exists
+				the_excerpt();
+			} else {
+				// admin has chosen "excerpt (short desc)"
+				// for the "Event Espresso - Events > Templates > Display Description" option
+				// but NO excerpt actually exists, so we need to create one
+				if (! empty($num_words)) {
+					if (empty($more)) {
+						$more_link_text = esc_html__('(more&hellip;)', 'event_espresso');
+						$more           = ' <a href="' . get_permalink() . '"';
+						$more           .= ' class="more-link"';
+						$more           .= EED_Events_Archive::link_target();
+						$more           .= '>' . $more_link_text . '</a>';
+						$more           = apply_filters('the_content_more_link', $more, $more_link_text);
+					}
+					$content = str_replace('NOMORELINK', '', get_the_content('NOMORELINK'));
+
+					$content = wp_trim_words($content, $num_words, ' ') . $more;
+				} else {
+					$content = get_the_content();
+				}
+				global $allowedtags;
+				// make sure links are allowed
+				$allowedtags['a'] = isset($allowedtags['a'])
+					? $allowedtags['a']
+					: [];
+				// as well as target attribute
+				$allowedtags['a']['target'] = isset($allowedtags['a']['target'])
+					? $allowedtags['a']['target']
+					: false;
+				// but get previous value so we can reset it
+				$prev_value                 = $allowedtags['a']['target'];
+				$allowedtags['a']['target'] = true;
+				$content                    = wp_kses($content, $allowedtags);
+				$content                    = strip_shortcodes($content);
+				echo apply_filters('the_content', $content);
+				$allowedtags['a']['target'] = $prev_value;
+			}
+		} else {
+			// admin has chosen "none"
+			// for the "Event Espresso - Events > Templates > Display Description" option
+			echo apply_filters('the_content', '');
+		}
+		return ob_get_clean();
+	}
+
+
+	/**
+	 *  event_tickets_available
+	 *
+	 * @param int $EVT_ID
+	 * @return     EE_Ticket[]
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function event_tickets_available($EVT_ID = 0)
+	{
+		$event                          = EEH_Event_View::get_event($EVT_ID);
+		$tickets_available_for_purchase = [];
+		if ($event instanceof EE_Event) {
+			$datetimes = EEH_Event_View::get_all_date_obj($EVT_ID, false);
+			foreach ($datetimes as $datetime) {
+				$tickets_available_for_purchase =
+					array_merge($tickets_available_for_purchase, $datetime->ticket_types_available_for_purchase());
+			}
+		}
+		return $tickets_available_for_purchase;
+	}
+
+
+	/**
+	 *    the_event_date
+	 *
+	 * @param int  $EVT_ID
+	 * @param bool $hide_uncategorized
+	 * @return    string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function event_categories($EVT_ID = 0, $hide_uncategorized = true)
+	{
+		$category_links = [];
+		$event          = EEH_Event_View::get_event($EVT_ID);
+		if ($event instanceof EE_Event) {
+			$event_categories = get_the_terms($event->ID(), 'espresso_event_categories');
+			if ($event_categories) {
+				// loop thru terms and create links
+				foreach ($event_categories as $term) {
+					$url = get_term_link($term, 'espresso_venue_categories');
+					if (
+						! is_wp_error($url)
+						&& (
+							(
+								$hide_uncategorized
+								&& strtolower($term->name) != esc_html__('uncategorized', 'event_espresso')
+							)
+							|| ! $hide_uncategorized
+						)
+					) {
+						$category_links[] = '<a href="' . esc_url_raw($url) . '" '
+											. 'rel="tag" ' . EED_Events_Archive::link_target() . '>'
+											. esc_html($term->name)
+											. '</a>';
+					}
+				}
+			}
+		}
+		return implode(', ', $category_links);
+	}
+
+
+	/**
+	 *    the_event_date - first date by date order
+	 *
+	 * @param string $date_format
+	 * @param string $time_format
+	 * @param int    $EVT_ID
+	 * @return    string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function the_event_date($date_format = 'D M jS', $time_format = 'g:i a', $EVT_ID = 0)
+	{
+		$datetime = EEH_Event_View::get_primary_date_obj($EVT_ID);
+		$format   = ! empty($date_format) && ! empty($time_format)
+				? $date_format . ' ' . $time_format
+				: $date_format . $time_format;
+		return $datetime instanceof EE_Datetime ? $datetime->get_i18n_datetime('DTT_EVT_start', $format) : '';
+	}
+
+
+	/**
+	 *    the_event_end_date - last date by date order
+	 *
+	 * @param string $date_format
+	 * @param string $time_format
+	 * @param int    $EVT_ID
+	 * @return    string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function the_event_end_date($date_format = 'D M jS', $time_format = 'g:i a', $EVT_ID = 0)
+	{
+		$datetime = EEH_Event_View::get_last_date_obj($EVT_ID);
+		$format   =
+			! empty($date_format) && ! empty($time_format)
+				? $date_format . ' ' . $time_format
+				: $date_format
+				  . $time_format;
+		return $datetime instanceof EE_Datetime ? $datetime->get_i18n_datetime('DTT_EVT_end', $format) : '';
+	}
+
+
+	/**
+	 *    the_earliest_event_date - first date chronologically
+	 *
+	 * @param string $date_format
+	 * @param string $time_format
+	 * @param int    $EVT_ID
+	 * @return    string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function the_earliest_event_date($date_format = 'D M jS', $time_format = 'g:i a', $EVT_ID = 0)
+	{
+		$datetime = EEH_Event_View::get_earliest_date_obj($EVT_ID);
+		$format   =
+			! empty($date_format) && ! empty($time_format)
+				? $date_format . ' ' . $time_format
+				: $date_format
+				  . $time_format;
+		return $datetime instanceof EE_Datetime ? $datetime->get_i18n_datetime('DTT_EVT_start', $format) : '';
+	}
+
+
+	/**
+	 *    the_latest_event_date - latest date chronologically
+	 *
+	 * @param string $date_format
+	 * @param string $time_format
+	 * @param int    $EVT_ID
+	 * @return    string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function the_latest_event_date($date_format = 'D M jS', $time_format = 'g:i a', $EVT_ID = 0)
+	{
+		$datetime = EEH_Event_View::get_latest_date_obj($EVT_ID);
+		$format   =
+			! empty($date_format) && ! empty($time_format)
+				? $date_format . ' ' . $time_format
+				: $date_format
+				  . $time_format;
+		return $datetime instanceof EE_Datetime ? $datetime->get_i18n_datetime('DTT_EVT_end', $format) : '';
+	}
+
+
+	/**
+	 *    event_date_as_calendar_page
+	 *
+	 * @param int $EVT_ID
+	 * @return    void
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function event_date_as_calendar_page($EVT_ID = 0)
+	{
+		$datetime = EEH_Event_View::get_primary_date_obj($EVT_ID);
+		if ($datetime instanceof EE_Datetime) {
+			?>
             <div class="event-date-calendar-page-dv">
                 <div class="event-date-calendar-page-month-dv">
                     <?php echo esc_html($datetime->get_i18n_datetime('DTT_EVT_start', 'M')); ?>
@@ -389,275 +389,275 @@ 
                 </div>
             </div>
             <?php
-        }
-    }
-
-
-    /**
-     *    get_primary_date_obj - orders date by DTT_order
-     *
-     * @param int $EVT_ID
-     * @return EE_Datetime
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function get_primary_date_obj($EVT_ID = 0)
-    {
-        $event = EEH_Event_View::get_event($EVT_ID);
-        if ($event instanceof EE_Event) {
-            $datetimes = $event->get_many_related(
-                'Datetime',
-                [
-                    'limit'    => 1,
-                    'order_by' => ['DTT_order' => 'ASC'],
-                ]
-            );
-            return reset($datetimes);
-        }
-        return null;
-    }
-
-
-    /**
-     *    get_last_date_obj - orders date by DTT_order
-     *
-     * @param int $EVT_ID
-     * @return EE_Datetime
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function get_last_date_obj($EVT_ID = 0)
-    {
-        $event = EEH_Event_View::get_event($EVT_ID);
-        if ($event instanceof EE_Event) {
-            $datetimes = $event->get_many_related(
-                'Datetime',
-                [
-                    'limit'    => 1,
-                    'order_by' => ['DTT_order' => 'DESC'],
-                ]
-            );
-            return end($datetimes);
-        }
-        return null;
-    }
-
-
-    /**
-     *    get_earliest_date_obj - orders date chronologically
-     *
-     * @param int $EVT_ID
-     * @return EE_Datetime
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function get_earliest_date_obj($EVT_ID = 0)
-    {
-        $event = EEH_Event_View::get_event($EVT_ID);
-        if ($event instanceof EE_Event) {
-            $datetimes = $event->get_many_related(
-                'Datetime',
-                [
-                    'limit'    => 1,
-                    'order_by' => ['DTT_EVT_start' => 'ASC'],
-                ]
-            );
-            return reset($datetimes);
-        }
-        return null;
-    }
-
-
-    /**
-     *    get_latest_date_obj - orders date chronologically
-     *
-     * @param int $EVT_ID
-     * @return EE_Datetime
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function get_latest_date_obj($EVT_ID = 0)
-    {
-        $event = EEH_Event_View::get_event($EVT_ID);
-        if ($event instanceof EE_Event) {
-            $datetimes = $event->get_many_related(
-                'Datetime',
-                [
-                    'limit'    => 1,
-                    'order_by' => ['DTT_EVT_start' => 'DESC'],
-                ]
-            );
-            return end($datetimes);
-        }
-        return null;
-    }
-
-
-    /**
-     *    get_next_upcoming_date_obj - return the next upcoming datetime
-     *
-     * @param int $EVT_ID
-     * @return    EE_Datetime|null
-     * @throws EE_Error
-     * @throws EE_Error
-     */
-    public static function get_next_upcoming_date_obj($EVT_ID = 0)
-    {
-        $datetime = EEM_Datetime::instance()->get_one(
-            [
-                [
-                    'Event.EVT_ID'  => $EVT_ID,
-                    'DTT_EVT_start' => ['>=', current_time('mysql', true)],
-                ],
-                'order_by' => ['DTT_EVT_start' => 'asc'],
-            ]
-        );
-        return $datetime instanceof EE_Datetime ? $datetime : null;
-    }
-
-
-    /**
-     *    get_next_upcoming_date_obj - return the next upcoming datetime
-     *
-     * @param int $DTT_ID
-     * @return EE_Datetime|null
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function get_date_obj(int $DTT_ID = 0): ?EE_Datetime
-    {
-        $datetime = EEM_Datetime::instance()->get_one_by_ID($DTT_ID);
-        return $datetime instanceof EE_Datetime ? $datetime : null;
-    }
-
-
-    /**
-     *    get_all_date_obj
-     *
-     * @param int  $EVT_ID
-     * @param null $include_expired
-     * @param bool $include_deleted
-     * @param null $limit
-     * @return EE_Datetime[]
-     * @throws EE_Error
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function get_all_date_obj(
-        $EVT_ID = 0,
-        $include_expired = null,
-        $include_deleted = false,
-        $limit = null
-    ) {
-        $event = EEH_Event_View::get_event($EVT_ID);
-        if ($include_expired === null) {
-            if ($event instanceof EE_Event && $event->is_expired()) {
-                $include_expired = true;
-            } else {
-                $include_expired = false;
-            }
-        }
-
-        if ($event instanceof EE_Event) {
-            return $event->datetimes_ordered($include_expired, $include_deleted, $limit);
-        }
-        return [];
-    }
-
-
-    /**
-     *    event_link_url
-     *
-     * @param int $EVT_ID
-     * @return string
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function event_link_url($EVT_ID = 0)
-    {
-        $event = EEH_Event_View::get_event($EVT_ID);
-        if ($event instanceof EE_Event) {
-            $url = $event->external_url() !== null && $event->external_url() !== ''
-                ? $event->external_url()
-                : get_permalink($event->ID());
-            $url = preg_match("~^(?:f|ht)tps?://~i", $url) ? $url : 'https://' . $url;
-            return esc_url_raw($url);
-        }
-        return '';
-    }
-
-
-    /**
-     *    event_phone
-     *
-     * @param int $EVT_ID
-     * @return    string
-     * @throws EE_Error
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function event_phone($EVT_ID = 0)
-    {
-        $event = EEH_Event_View::get_event($EVT_ID);
-        if ($event instanceof EE_Event) {
-            return EEH_Schema::telephone($event->phone());
-        }
-        return null;
-    }
-
-
-    /**
-     *    edit_event_link
-     *
-     * @param int    $EVT_ID
-     * @param string $link
-     * @param string $before
-     * @param string $after
-     * @return    string
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function edit_event_link($EVT_ID = 0, $link = '', $before = '', $after = '')
-    {
-        $event = EEH_Event_View::get_event($EVT_ID);
-        if ($event instanceof EE_Event) {
-            // can the user edit this post ?
-            if (current_user_can('edit_post', $event->ID())) {
-                // set link text
-                $link_text = ! empty($link) ? $link : esc_html__('edit this event', 'event_espresso');
-                // generate nonce
-                $nonce = wp_create_nonce('edit_nonce');
-                // generate url to event editor for this event
-                $url =
-                    add_query_arg(
-                        [
-                            'page'       => 'espresso_events',
-                            'action'     => 'edit',
-                            'post'       => $event->ID(),
-                            'edit_nonce' => $nonce,
-                        ],
-                        admin_url()
-                    );
-                // get edit CPT text
-                $post_type_obj = get_post_type_object(EspressoPostType::EVENTS);
-                // build final link html
-                $link = '<a class="post-edit-link" href="' . $url . '" ';
-                $link .= ' title="' . esc_attr($post_type_obj->labels->edit_item) . '"';
-                $link .= EED_Events_Archive::link_target();
-                $link .= '>' . $link_text . '</a>';
-                // put it all together
-                return $before . apply_filters('edit_post_link', $link, $event->ID()) . $after;
-            }
-        }
-        return '';
-    }
-
-
-    /**
-     * @return string
-     */
-    public static function event_archive_url()
-    {
-        return get_post_type_archive_link(EspressoPostType::EVENTS);
-    }
+		}
+	}
+
+
+	/**
+	 *    get_primary_date_obj - orders date by DTT_order
+	 *
+	 * @param int $EVT_ID
+	 * @return EE_Datetime
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function get_primary_date_obj($EVT_ID = 0)
+	{
+		$event = EEH_Event_View::get_event($EVT_ID);
+		if ($event instanceof EE_Event) {
+			$datetimes = $event->get_many_related(
+				'Datetime',
+				[
+					'limit'    => 1,
+					'order_by' => ['DTT_order' => 'ASC'],
+				]
+			);
+			return reset($datetimes);
+		}
+		return null;
+	}
+
+
+	/**
+	 *    get_last_date_obj - orders date by DTT_order
+	 *
+	 * @param int $EVT_ID
+	 * @return EE_Datetime
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function get_last_date_obj($EVT_ID = 0)
+	{
+		$event = EEH_Event_View::get_event($EVT_ID);
+		if ($event instanceof EE_Event) {
+			$datetimes = $event->get_many_related(
+				'Datetime',
+				[
+					'limit'    => 1,
+					'order_by' => ['DTT_order' => 'DESC'],
+				]
+			);
+			return end($datetimes);
+		}
+		return null;
+	}
+
+
+	/**
+	 *    get_earliest_date_obj - orders date chronologically
+	 *
+	 * @param int $EVT_ID
+	 * @return EE_Datetime
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function get_earliest_date_obj($EVT_ID = 0)
+	{
+		$event = EEH_Event_View::get_event($EVT_ID);
+		if ($event instanceof EE_Event) {
+			$datetimes = $event->get_many_related(
+				'Datetime',
+				[
+					'limit'    => 1,
+					'order_by' => ['DTT_EVT_start' => 'ASC'],
+				]
+			);
+			return reset($datetimes);
+		}
+		return null;
+	}
+
+
+	/**
+	 *    get_latest_date_obj - orders date chronologically
+	 *
+	 * @param int $EVT_ID
+	 * @return EE_Datetime
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function get_latest_date_obj($EVT_ID = 0)
+	{
+		$event = EEH_Event_View::get_event($EVT_ID);
+		if ($event instanceof EE_Event) {
+			$datetimes = $event->get_many_related(
+				'Datetime',
+				[
+					'limit'    => 1,
+					'order_by' => ['DTT_EVT_start' => 'DESC'],
+				]
+			);
+			return end($datetimes);
+		}
+		return null;
+	}
+
+
+	/**
+	 *    get_next_upcoming_date_obj - return the next upcoming datetime
+	 *
+	 * @param int $EVT_ID
+	 * @return    EE_Datetime|null
+	 * @throws EE_Error
+	 * @throws EE_Error
+	 */
+	public static function get_next_upcoming_date_obj($EVT_ID = 0)
+	{
+		$datetime = EEM_Datetime::instance()->get_one(
+			[
+				[
+					'Event.EVT_ID'  => $EVT_ID,
+					'DTT_EVT_start' => ['>=', current_time('mysql', true)],
+				],
+				'order_by' => ['DTT_EVT_start' => 'asc'],
+			]
+		);
+		return $datetime instanceof EE_Datetime ? $datetime : null;
+	}
+
+
+	/**
+	 *    get_next_upcoming_date_obj - return the next upcoming datetime
+	 *
+	 * @param int $DTT_ID
+	 * @return EE_Datetime|null
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function get_date_obj(int $DTT_ID = 0): ?EE_Datetime
+	{
+		$datetime = EEM_Datetime::instance()->get_one_by_ID($DTT_ID);
+		return $datetime instanceof EE_Datetime ? $datetime : null;
+	}
+
+
+	/**
+	 *    get_all_date_obj
+	 *
+	 * @param int  $EVT_ID
+	 * @param null $include_expired
+	 * @param bool $include_deleted
+	 * @param null $limit
+	 * @return EE_Datetime[]
+	 * @throws EE_Error
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function get_all_date_obj(
+		$EVT_ID = 0,
+		$include_expired = null,
+		$include_deleted = false,
+		$limit = null
+	) {
+		$event = EEH_Event_View::get_event($EVT_ID);
+		if ($include_expired === null) {
+			if ($event instanceof EE_Event && $event->is_expired()) {
+				$include_expired = true;
+			} else {
+				$include_expired = false;
+			}
+		}
+
+		if ($event instanceof EE_Event) {
+			return $event->datetimes_ordered($include_expired, $include_deleted, $limit);
+		}
+		return [];
+	}
+
+
+	/**
+	 *    event_link_url
+	 *
+	 * @param int $EVT_ID
+	 * @return string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function event_link_url($EVT_ID = 0)
+	{
+		$event = EEH_Event_View::get_event($EVT_ID);
+		if ($event instanceof EE_Event) {
+			$url = $event->external_url() !== null && $event->external_url() !== ''
+				? $event->external_url()
+				: get_permalink($event->ID());
+			$url = preg_match("~^(?:f|ht)tps?://~i", $url) ? $url : 'https://' . $url;
+			return esc_url_raw($url);
+		}
+		return '';
+	}
+
+
+	/**
+	 *    event_phone
+	 *
+	 * @param int $EVT_ID
+	 * @return    string
+	 * @throws EE_Error
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function event_phone($EVT_ID = 0)
+	{
+		$event = EEH_Event_View::get_event($EVT_ID);
+		if ($event instanceof EE_Event) {
+			return EEH_Schema::telephone($event->phone());
+		}
+		return null;
+	}
+
+
+	/**
+	 *    edit_event_link
+	 *
+	 * @param int    $EVT_ID
+	 * @param string $link
+	 * @param string $before
+	 * @param string $after
+	 * @return    string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function edit_event_link($EVT_ID = 0, $link = '', $before = '', $after = '')
+	{
+		$event = EEH_Event_View::get_event($EVT_ID);
+		if ($event instanceof EE_Event) {
+			// can the user edit this post ?
+			if (current_user_can('edit_post', $event->ID())) {
+				// set link text
+				$link_text = ! empty($link) ? $link : esc_html__('edit this event', 'event_espresso');
+				// generate nonce
+				$nonce = wp_create_nonce('edit_nonce');
+				// generate url to event editor for this event
+				$url =
+					add_query_arg(
+						[
+							'page'       => 'espresso_events',
+							'action'     => 'edit',
+							'post'       => $event->ID(),
+							'edit_nonce' => $nonce,
+						],
+						admin_url()
+					);
+				// get edit CPT text
+				$post_type_obj = get_post_type_object(EspressoPostType::EVENTS);
+				// build final link html
+				$link = '<a class="post-edit-link" href="' . $url . '" ';
+				$link .= ' title="' . esc_attr($post_type_obj->labels->edit_item) . '"';
+				$link .= EED_Events_Archive::link_target();
+				$link .= '>' . $link_text . '</a>';
+				// put it all together
+				return $before . apply_filters('edit_post_link', $link, $event->ID()) . $after;
+			}
+		}
+		return '';
+	}
+
+
+	/**
+	 * @return string
+	 */
+	public static function event_archive_url()
+	{
+		return get_post_type_archive_link(EspressoPostType::EVENTS);
+	}
 }

core/helpers/EEH_Event_Query.helper.php

Indentation +629 added lines, -629 removed lines

@@ -15,633 +15,633 @@
  */
 class EEH_Event_Query
 {
-    /**
-     * Start Date
-     */
-    protected static string $_event_query_month;
-
-    /**
-     * Category
-     */
-    protected static string $_event_query_category;
-
-    /**
-     * whether to display expired events in the event list
-     */
-    protected static bool $_event_query_show_expired = false;
-
-    /**
-     * list of params for controlling how the query results are ordered
-     */
-    protected static array $_event_query_orderby = [];
-
-    /**
-     * direction list is sorted
-     */
-    protected static string $_event_query_sort;
-
-    /**
-     * list of params used to build the query's various clauses
-     */
-    protected static array $_query_params = [];
-
-
-    /**
-     * @return void
-     */
-    public static function add_query_filters()
-    {
-        // add query filters
-        add_action('pre_get_posts', ['EEH_Event_Query', 'filter_query_parts']);
-    }
-
-
-    /**
-     * @param WP_Query $WP_Query
-     * @return bool
-     * @noinspection PhpUnnecessaryBoolCastInspection
-     */
-    public static function apply_query_filters(WP_Query $WP_Query): bool
-    {
-        return (
-                isset($WP_Query->query['post_type'])
-                && $WP_Query->query['post_type'] === 'espresso_events'
-            )
-            || (bool) apply_filters('FHEE__EEH_Event_Query__apply_query_filters', false);
-    }
-
-
-    /**
-     * @param WP_Query $WP_Query
-     */
-    public static function filter_query_parts(WP_Query $WP_Query)
-    {
-        // ONLY add our filters if this isn't the main wp_query,
-        // because if this is the main wp_query we already have
-        // our cpt strategies take care of adding things in.
-        if (! $WP_Query->is_main_query()) {
-            // build event list query
-            add_filter('posts_fields', ['EEH_Event_Query', 'posts_fields'], 10, 2);
-            add_filter('posts_join', ['EEH_Event_Query', 'posts_join'], 10, 2);
-            add_filter('posts_where', ['EEH_Event_Query', 'posts_where'], 10, 2);
-            add_filter('posts_orderby', ['EEH_Event_Query', 'posts_orderby'], 10, 2);
-            add_filter('posts_clauses_request', ['EEH_Event_Query', 'posts_clauses'], 10, 2);
-        }
-    }
-
-
-    /**
-     * @param string|null  $month
-     * @param string|null  $category
-     * @param bool         $show_expired
-     * @param array|string $orderby
-     * @param string|null  $sort
-     */
-    public static function set_query_params(
-        ?string $month = '',
-        ?string $category = '',
-        bool $show_expired = false,
-        $orderby = 'start_date',
-        ?string $sort = 'ASC'
-    ) {
-        self::$_query_params                        = [];
-        EEH_Event_Query::$_event_query_month        = EEH_Event_Query::_display_month($month);
-        EEH_Event_Query::$_event_query_category     = EEH_Event_Query::_event_category_slug($category);
-        EEH_Event_Query::$_event_query_show_expired = EEH_Event_Query::_show_expired($show_expired);
-        EEH_Event_Query::$_event_query_orderby      = EEH_Event_Query::_orderby($orderby);
-        EEH_Event_Query::$_event_query_sort         = EEH_Event_Query::_sort($sort);
-    }
-
-
-    /**
-     * what month should the event list display events for?
-     *
-     * @param string|null $month
-     * @return string
-     */
-    private static function _display_month(?string $month = ''): string
-    {
-        return self::getRequest()->getRequestParam('event_query_month', $month);
-    }
-
-
-    /**
-     * @param string|null $category
-     * @return string
-     */
-    private static function _event_category_slug(?string $category = ''): string
-    {
-        return self::getRequest()->getRequestParam('event_query_category', $category);
-    }
-
-
-    /**
-     * @param bool $show_expired
-     * @return bool
-     */
-    private static function _show_expired(bool $show_expired = false): bool
-    {
-        // override default expired option if set via filter
-        return self::getRequest()->getRequestParam('event_query_show_expired', $show_expired, 'bool');
-    }
-
-
-    /**
-     * @param array|string|null $orderby
-     * @return array
-     */
-    private static function _orderby($orderby = 'start_date'): array
-    {
-        $event_query_orderby = self::getRequest()->getRequestParam(
-            'event_query_orderby',
-            (array) $orderby,
-            DataType::STRING,
-            true
-        );
-        $event_query_orderby = is_array($event_query_orderby)
-            ? $event_query_orderby
-            : explode(',', $event_query_orderby);
-        $event_query_orderby = array_map('trim', $event_query_orderby);
-        return array_map('sanitize_text_field', $event_query_orderby);
-    }
-
-
-    /**
-     * @param string|null $sort
-     * @return string
-     */
-    private static function _sort(?string $sort = 'ASC'): string
-    {
-        $sort = self::getRequest()->getRequestParam('event_query_sort', $sort);
-        return in_array($sort, ['ASC', 'asc', 'DESC', 'desc'], true)
-            ? strtoupper($sort)
-            : 'ASC';
-    }
-
-
-    /**
-     * Filters the clauses for the WP_Query object
-     *
-     * @param array    $clauses array of clauses
-     * @param WP_Query $wp_query
-     * @return array   array of clauses
-     */
-    public static function posts_clauses(array $clauses, WP_Query $wp_query): array
-    {
-        if (EEH_Event_Query::apply_query_filters($wp_query)) {
-            global $wpdb;
-            $clauses['groupby'] = $wpdb->posts . '.ID ';
-        }
-        return $clauses;
-    }
-
-
-    /**
-     * @param string   $SQL
-     * @param WP_Query $wp_query
-     * @return string
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function posts_fields(string $SQL, WP_Query $wp_query): string
-    {
-        if (EEH_Event_Query::apply_query_filters($wp_query)) {
-            // adds something like ", wp_esp_datetime.* " to WP Query SELECT statement
-            $SQL .= EEH_Event_Query::posts_fields_sql_for_orderby(EEH_Event_Query::$_event_query_orderby);
-        }
-        return $SQL;
-    }
-
-
-    /**
-     * @param array $orderby_params
-     * @return string
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function posts_fields_sql_for_orderby(array $orderby_params = []): string
-    {
-        $SQL = ', MIN( ' . EEM_Datetime::instance()->table() . '.DTT_EVT_start ) as event_start_date ';
-        foreach ($orderby_params as $orderby) {
-            switch ($orderby) {
-                case 'ticket_start':
-                    $SQL .= ', ' . EEM_Ticket::instance()->table() . '.TKT_start_date';
-                    break;
-                case 'ticket_end':
-                    $SQL .= ', ' . EEM_Ticket::instance()->table() . '.TKT_end_date';
-                    break;
-                case 'venue_title':
-                    $SQL .= ', Venue.post_title AS venue_title';
-                    break;
-                case 'city':
-                    $SQL .= ', ' . EEM_Venue::instance()->second_table() . '.VNU_city';
-                    break;
-                case 'state':
-                    $SQL .= ', ' . EEM_State::instance()->table() . '.STA_name';
-                    break;
-            }
-        }
-        return $SQL;
-    }
-
-
-    /**
-     * @param string   $SQL
-     * @param WP_Query $wp_query
-     * @return string
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function posts_join(string $SQL, WP_Query $wp_query): string
-    {
-        if (EEH_Event_Query::apply_query_filters($wp_query)) {
-            // Category
-            $SQL = EEH_Event_Query::posts_join_sql_for_show_expired($SQL, EEH_Event_Query::$_event_query_show_expired);
-            $SQL = EEH_Event_Query::posts_join_sql_for_terms($SQL, EEH_Event_Query::$_event_query_category);
-            $SQL = EEH_Event_Query::posts_join_for_orderby($SQL, EEH_Event_Query::$_event_query_orderby);
-        }
-        return $SQL;
-    }
-
-
-    /**
-     * @param string  $SQL
-     * @param boolean $show_expired if TRUE, then displayed past events
-     * @return string
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function posts_join_sql_for_show_expired(string $SQL = '', bool $show_expired = false): string
-    {
-        if (! $show_expired) {
-            $datetime_table = EEM_Datetime::instance()->table();
-            // don't add if this is already in the SQL
-            if (strpos($SQL, "INNER JOIN $datetime_table") === false) {
-                $event_table = EEM_Event::instance()->table();
-                $event_table_pk = EEM_Event::instance()->primary_key_name();
-                $SQL .= " INNER JOIN $datetime_table ON ( $event_table.ID = $datetime_table.$event_table_pk ) ";
-            }
-        }
-        return $SQL;
-    }
-
-
-    /**
-     * @param string $SQL
-     * @param string $join_terms    pass TRUE or term string, doesn't really matter since this value doesn't really get
-     *                              used for anything yet
-     * @return string
-     */
-    public static function posts_join_sql_for_terms(string $SQL = '', string $join_terms = ''): string
-    {
-        global $wpdb;
-        if (! empty($join_terms) && strpos($SQL, "LEFT JOIN $wpdb->term_relationships") === false) {
-            $SQL .= " LEFT JOIN $wpdb->term_relationships ON ($wpdb->posts.ID = $wpdb->term_relationships.object_id)";
-            $SQL .= " LEFT JOIN $wpdb->term_taxonomy ON ($wpdb->term_relationships.term_taxonomy_id = $wpdb->term_taxonomy.term_taxonomy_id)";
-            $SQL .= " LEFT JOIN $wpdb->terms ON ($wpdb->terms.term_id = $wpdb->term_taxonomy.term_id) ";
-        }
-        return $SQL;
-    }
-
-
-    /**
-     * usage:  $SQL .= EEH_Event_Query::posts_join_for_orderby( $orderby_params );
-     *
-     * @param string $SQL
-     * @param array  $orderby_params
-     * @return string
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function posts_join_for_orderby(string $SQL = '', array $orderby_params = []): string
-    {
-        foreach ($orderby_params as $orderby) {
-            switch ($orderby) {
-                case 'ticket_start':
-                case 'ticket_end':
-                    $SQL .= EEH_Event_Query::_posts_join_for_datetime(
-                        $SQL,
-                        EEM_Datetime_Ticket::instance()->table() . '.' . EEM_Datetime::instance()->primary_key_name()
-                    );
-                    $SQL .= EEH_Event_Query::postsJoinForTicket($SQL);
-                    break;
-                case 'venue_title':
-                case 'city':
-                    $SQL .= EEH_Event_Query::_posts_join_for_event_venue($SQL);
-                    break;
-                case 'state':
-                    $SQL .= EEH_Event_Query::_posts_join_for_event_venue($SQL);
-                    $SQL .= EEH_Event_Query::_posts_join_for_venue_state($SQL);
-                    break;
-                case 'start_date':
-                default:
-                    $SQL .= EEH_Event_Query::_posts_join_for_datetime($SQL, EEM_Event::instance()->table() . '.ID');
-                    break;
-            }
-        }
-        return $SQL;
-    }
-
-
-    /**
-     * @param string $SQL
-     * @param string $join
-     * @return string
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    protected static function _posts_join_for_datetime(string $SQL = '', string $join = ''): string
-    {
-        if (! empty($join)) {
-            $datetime_table = EEM_Datetime::instance()->table();
-            // don't add if this is already in the SQL
-            if (strpos($SQL, "INNER JOIN $datetime_table") === false) {
-                $event_table_pk = EEM_Event::instance()->primary_key_name();
-                return " INNER JOIN $datetime_table ON ( $join = $datetime_table.$event_table_pk )";
-            }
-        }
-        return '';
-    }
-
-
-    /**
-     * @param string $SQL
-     * @return string
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    protected static function _posts_join_for_event_venue(string $SQL = ''): string
-    {
-        $venue_table = EEM_Venue::instance()->table();
-        // don't add joins if they have already been added
-        if (strpos($SQL, "LEFT JOIN $venue_table") === false) {
-            global $wpdb;
-            // grab venue table PK name & event_meta table name
-            $VNU_ID     = EEM_Venue::instance()->primary_key_name();
-            $event_meta = EEM_Event::instance()->second_table();
-            // generate conditions for:  Event <=> Venue  JOIN clause
-            $event_venue_join = "Venue.ID = $event_meta.$VNU_ID";
-            // grab wp_posts (event), venue, and venue_meta table names
-            $wp_posts   = $wpdb->posts;
-            $venue_meta = EEM_Venue::instance()->second_table();
-            // generate JOIN clause for: Event <=> Event Meta
-            $venue_SQL = " LEFT JOIN $event_meta ON ( $wp_posts.ID = $event_meta.EVT_ID )";
-            // generate JOIN clause for: Event Meta <=> Venue
-            $venue_SQL .= " LEFT JOIN $venue_table AS Venue ON ( $event_venue_join )";
-            // generate JOIN clause for: Venue <=> Venue Meta
-            $venue_SQL .= " LEFT JOIN $venue_meta ON ( Venue.ID = $venue_meta.$VNU_ID )";
-            unset($venue_table, $VNU_ID, $event_meta, $venue_meta, $event_venue_join);
-            return $venue_SQL;
-        }
-        unset($VNU_ID, $event_meta, $event_venue_join);
-        return '';
-    }
-
-
-    /**
-     * @param string $SQL
-     * @return string
-     * @throws EE_Error
-     * @throws ReflectionException
-     * @since 5.0.20.p
-     */
-    protected static function postsJoinForTicket(string $SQL = ''): string
-    {
-        $ticket_table = EEM_Ticket::instance()->table();
-        // don't add if this is already in the SQL
-        if (strpos($SQL, "LEFT JOIN $ticket_table") === false) {
-            $datetime_table = EEM_Datetime::instance()->table();
-            $ticket_table_pk = EEM_Ticket::instance()->primary_key_name();
-            return " LEFT JOIN $ticket_table ON ( $datetime_table.$ticket_table_pk = $ticket_table.$ticket_table_pk )";
-        }
-        return '';
-    }
-
-
-
-    /**
-     * @param string $SQL
-     * @return string
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    protected static function _posts_join_for_venue_state(string $SQL = ''): string
-    {
-        $state_table = EEM_State::instance()->table();
-        // don't add join if it has already been added
-        if (strpos($SQL, "LEFT JOIN $state_table") === false) {
-            $state_table_pk = EEM_State::instance()->primary_key_name();
-            $venue_meta_table = EEM_Venue::instance()->second_table();
-            // like: wp_esp_venue_meta.STA_ID = wp_esp_state.STA_ID
-            return " LEFT JOIN $state_table ON ( $venue_meta_table.$state_table_pk = $state_table.$state_table_pk )";
-        }
-        return '';
-    }
-
-
-    /**
-     * @param string   $SQL
-     * @param WP_Query $wp_query
-     * @return string
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function posts_where(string $SQL, WP_Query $wp_query): string
-    {
-        if (EEH_Event_Query::apply_query_filters($wp_query)) {
-            // Show Expired ?
-            $SQL .= EEH_Event_Query::posts_where_sql_for_show_expired(EEH_Event_Query::$_event_query_show_expired);
-            // Category
-            $SQL .= EEH_Event_Query::posts_where_sql_for_event_category_slug(EEH_Event_Query::$_event_query_category);
-            // Start Date
-            $SQL .= EEH_Event_Query::posts_where_sql_for_event_list_month(EEH_Event_Query::$_event_query_month);
-            // Trashed DateTimes
-            $SQL .= EEH_Event_Query::posts_where_sql_for_non_trashed_datetimes();
-        }
-        return $SQL;
-    }
-
-
-    /**
-     * @param boolean $show_expired if TRUE, then displayed past events
-     * @return string
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function posts_where_sql_for_show_expired(bool $show_expired = false): string
-    {
-        return ! $show_expired
-            ? ' AND ' . EEM_Datetime::instance()->table() . '.DTT_EVT_end > \'' . current_time('mysql', true) . '\' '
-            : '';
-    }
-
-
-    /**
-     * @param string|null $event_category_slug
-     * @return string
-     */
-    public static function posts_where_sql_for_event_category_slug(?string $event_category_slug = null): string
-    {
-        global $wpdb;
-        if (! empty($event_category_slug)) {
-            $event_category_slugs_array   = array_map('trim', explode(',', $event_category_slug));
-            $event_category_slugs_prepare = implode(', ', array_fill(0, count($event_category_slugs_array), '%s'));
-            return $wpdb->prepare(
-                " AND $wpdb->terms.slug IN ($event_category_slugs_prepare) ",
-                $event_category_slugs_array
-            );
-        }
-        return '';
-    }
-
-
-    /**
-     * @param string|null $month
-     * @return string
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function posts_where_sql_for_event_list_month(?string $month = null): string
-    {
-        $SQL = '';
-        if (! empty($month)) {
-            $datetime_table = EEM_Datetime::instance()->table();
-            // event start date is LESS than the end of the month ( so nothing that doesn't start until next month )
-            $SQL = " AND $datetime_table.DTT_EVT_start <= '";
-            $SQL .= date('Y-m-t 23:59:59', EEH_DTT_Helper::first_of_month_timestamp($month)) . "'";
-            // event end date is GREATER than the start of the month ( so nothing that ended before this month )
-            $SQL .= " AND $datetime_table.DTT_EVT_end >= '";
-            $SQL .= date('Y-m-01 0:0:00', EEH_DTT_Helper::first_of_month_timestamp($month)) . "' ";
-        }
-        return $SQL;
-    }
-
-
-    /**
-     * @return string
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function posts_where_sql_for_non_trashed_datetimes(): string
-    {
-        return ' AND ' . EEM_Datetime::instance()->table() . '.DTT_deleted = 0';
-    }
-
-
-    /**
-     * @param string   $SQL
-     * @param WP_Query $wp_query
-     * @return string
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function posts_orderby(string $SQL, WP_Query $wp_query): string
-    {
-        if (EEH_Event_Query::apply_query_filters($wp_query)) {
-            $SQL = EEH_Event_Query::posts_orderby_sql(
-                EEH_Event_Query::$_event_query_orderby,
-                EEH_Event_Query::$_event_query_sort
-            );
-        }
-        return $SQL;
-    }
-
-
-    /**
-     *    posts_orderby_sql
-     *    possible parameters:
-     *    ID
-     *    start_date
-     *    end_date
-     *    event_name
-     *    category_slug
-     *    ticket_start
-     *    ticket_end
-     *    venue_title
-     *    city
-     *    state
-     *    **IMPORTANT**
-     *    make sure to also send the $orderby_params array to the posts_join_for_orderby() method
-     *    or else some of the table references below will result in MySQL errors
-     *
-     * @param array  $orderby_params
-     * @param string $sort
-     * @return string
-     * @throws EE_Error
-     * @throws ReflectionException
-     */
-    public static function posts_orderby_sql(array $orderby_params = [], string $sort = 'ASC'): string
-    {
-        global $wpdb;
-        $SQL     = '';
-        $counter = 0;
-        $sort    = in_array($sort, ['ASC', 'asc', 'DESC', 'desc'], true)
-            ? strtoupper($sort)
-            : 'ASC';
-        // make sure 'orderby' is set in query params
-        if (! isset(self::$_query_params['orderby'])) {
-            self::$_query_params['orderby'] = [];
-        }
-        // loop thru $orderby_params (type cast as array)
-        foreach ($orderby_params as $orderby) {
-            // check if we have already added this param
-            if (isset(self::$_query_params['orderby'][ $orderby ])) {
-                // if so then remove from the $orderby_params so that the count() method below is accurate
-                unset($orderby_params[ $orderby ]);
-                // then bump ahead to the next param
-                continue;
-            }
-            // this will add a comma depending on whether this is the first or last param
-            $glue = $counter === 0 || $counter === count($orderby_params) ? ' ' : ', ';
-            // ok what's we dealing with?
-            switch ($orderby) {
-                case 'id':
-                case 'ID':
-                    $SQL .= $glue . $wpdb->posts . '.ID ' . $sort;
-                    break;
-                case 'end_date':
-                    $SQL .= $glue . EEM_Datetime::instance()->table() . '.DTT_EVT_end ' . $sort;
-                    break;
-                case 'event_name':
-                    $SQL .= $glue . $wpdb->posts . '.post_title ' . $sort;
-                    break;
-                case 'category_slug':
-                    $SQL .= $glue . $wpdb->terms . '.slug ' . $sort;
-                    break;
-                case 'ticket_start':
-                    $SQL .= $glue . EEM_Ticket::instance()->table() . '.TKT_start_date ' . $sort;
-                    break;
-                case 'ticket_end':
-                    $SQL .= $glue . EEM_Ticket::instance()->table() . '.TKT_end_date ' . $sort;
-                    break;
-                case 'venue_title':
-                    $SQL .= $glue . 'venue_title ' . $sort;
-                    break;
-                case 'city':
-                    $SQL .= $glue . EEM_Venue::instance()->second_table() . '.VNU_city ' . $sort;
-                    break;
-                case 'state':
-                    $SQL .= $glue . EEM_State::instance()->table() . '.STA_name ' . $sort;
-                    break;
-                case 'start_date':
-                default:
-                    $SQL .= $glue . ' event_start_date ' . $sort;
-                    break;
-            }
-            // add to array of orderby params that have been added
-            self::$_query_params['orderby'][ $orderby ] = true;
-            $counter++;
-        }
-        return $SQL;
-    }
-
-
-    /**
-     * @return RequestInterface
-     * @since   4.10.14.p
-     */
-    private static function getRequest(): RequestInterface
-    {
-        return LoaderFactory::getLoader()->getShared(RequestInterface::class);
-    }
+	/**
+	 * Start Date
+	 */
+	protected static string $_event_query_month;
+
+	/**
+	 * Category
+	 */
+	protected static string $_event_query_category;
+
+	/**
+	 * whether to display expired events in the event list
+	 */
+	protected static bool $_event_query_show_expired = false;
+
+	/**
+	 * list of params for controlling how the query results are ordered
+	 */
+	protected static array $_event_query_orderby = [];
+
+	/**
+	 * direction list is sorted
+	 */
+	protected static string $_event_query_sort;
+
+	/**
+	 * list of params used to build the query's various clauses
+	 */
+	protected static array $_query_params = [];
+
+
+	/**
+	 * @return void
+	 */
+	public static function add_query_filters()
+	{
+		// add query filters
+		add_action('pre_get_posts', ['EEH_Event_Query', 'filter_query_parts']);
+	}
+
+
+	/**
+	 * @param WP_Query $WP_Query
+	 * @return bool
+	 * @noinspection PhpUnnecessaryBoolCastInspection
+	 */
+	public static function apply_query_filters(WP_Query $WP_Query): bool
+	{
+		return (
+				isset($WP_Query->query['post_type'])
+				&& $WP_Query->query['post_type'] === 'espresso_events'
+			)
+			|| (bool) apply_filters('FHEE__EEH_Event_Query__apply_query_filters', false);
+	}
+
+
+	/**
+	 * @param WP_Query $WP_Query
+	 */
+	public static function filter_query_parts(WP_Query $WP_Query)
+	{
+		// ONLY add our filters if this isn't the main wp_query,
+		// because if this is the main wp_query we already have
+		// our cpt strategies take care of adding things in.
+		if (! $WP_Query->is_main_query()) {
+			// build event list query
+			add_filter('posts_fields', ['EEH_Event_Query', 'posts_fields'], 10, 2);
+			add_filter('posts_join', ['EEH_Event_Query', 'posts_join'], 10, 2);
+			add_filter('posts_where', ['EEH_Event_Query', 'posts_where'], 10, 2);
+			add_filter('posts_orderby', ['EEH_Event_Query', 'posts_orderby'], 10, 2);
+			add_filter('posts_clauses_request', ['EEH_Event_Query', 'posts_clauses'], 10, 2);
+		}
+	}
+
+
+	/**
+	 * @param string|null  $month
+	 * @param string|null  $category
+	 * @param bool         $show_expired
+	 * @param array|string $orderby
+	 * @param string|null  $sort
+	 */
+	public static function set_query_params(
+		?string $month = '',
+		?string $category = '',
+		bool $show_expired = false,
+		$orderby = 'start_date',
+		?string $sort = 'ASC'
+	) {
+		self::$_query_params                        = [];
+		EEH_Event_Query::$_event_query_month        = EEH_Event_Query::_display_month($month);
+		EEH_Event_Query::$_event_query_category     = EEH_Event_Query::_event_category_slug($category);
+		EEH_Event_Query::$_event_query_show_expired = EEH_Event_Query::_show_expired($show_expired);
+		EEH_Event_Query::$_event_query_orderby      = EEH_Event_Query::_orderby($orderby);
+		EEH_Event_Query::$_event_query_sort         = EEH_Event_Query::_sort($sort);
+	}
+
+
+	/**
+	 * what month should the event list display events for?
+	 *
+	 * @param string|null $month
+	 * @return string
+	 */
+	private static function _display_month(?string $month = ''): string
+	{
+		return self::getRequest()->getRequestParam('event_query_month', $month);
+	}
+
+
+	/**
+	 * @param string|null $category
+	 * @return string
+	 */
+	private static function _event_category_slug(?string $category = ''): string
+	{
+		return self::getRequest()->getRequestParam('event_query_category', $category);
+	}
+
+
+	/**
+	 * @param bool $show_expired
+	 * @return bool
+	 */
+	private static function _show_expired(bool $show_expired = false): bool
+	{
+		// override default expired option if set via filter
+		return self::getRequest()->getRequestParam('event_query_show_expired', $show_expired, 'bool');
+	}
+
+
+	/**
+	 * @param array|string|null $orderby
+	 * @return array
+	 */
+	private static function _orderby($orderby = 'start_date'): array
+	{
+		$event_query_orderby = self::getRequest()->getRequestParam(
+			'event_query_orderby',
+			(array) $orderby,
+			DataType::STRING,
+			true
+		);
+		$event_query_orderby = is_array($event_query_orderby)
+			? $event_query_orderby
+			: explode(',', $event_query_orderby);
+		$event_query_orderby = array_map('trim', $event_query_orderby);
+		return array_map('sanitize_text_field', $event_query_orderby);
+	}
+
+
+	/**
+	 * @param string|null $sort
+	 * @return string
+	 */
+	private static function _sort(?string $sort = 'ASC'): string
+	{
+		$sort = self::getRequest()->getRequestParam('event_query_sort', $sort);
+		return in_array($sort, ['ASC', 'asc', 'DESC', 'desc'], true)
+			? strtoupper($sort)
+			: 'ASC';
+	}
+
+
+	/**
+	 * Filters the clauses for the WP_Query object
+	 *
+	 * @param array    $clauses array of clauses
+	 * @param WP_Query $wp_query
+	 * @return array   array of clauses
+	 */
+	public static function posts_clauses(array $clauses, WP_Query $wp_query): array
+	{
+		if (EEH_Event_Query::apply_query_filters($wp_query)) {
+			global $wpdb;
+			$clauses['groupby'] = $wpdb->posts . '.ID ';
+		}
+		return $clauses;
+	}
+
+
+	/**
+	 * @param string   $SQL
+	 * @param WP_Query $wp_query
+	 * @return string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function posts_fields(string $SQL, WP_Query $wp_query): string
+	{
+		if (EEH_Event_Query::apply_query_filters($wp_query)) {
+			// adds something like ", wp_esp_datetime.* " to WP Query SELECT statement
+			$SQL .= EEH_Event_Query::posts_fields_sql_for_orderby(EEH_Event_Query::$_event_query_orderby);
+		}
+		return $SQL;
+	}
+
+
+	/**
+	 * @param array $orderby_params
+	 * @return string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function posts_fields_sql_for_orderby(array $orderby_params = []): string
+	{
+		$SQL = ', MIN( ' . EEM_Datetime::instance()->table() . '.DTT_EVT_start ) as event_start_date ';
+		foreach ($orderby_params as $orderby) {
+			switch ($orderby) {
+				case 'ticket_start':
+					$SQL .= ', ' . EEM_Ticket::instance()->table() . '.TKT_start_date';
+					break;
+				case 'ticket_end':
+					$SQL .= ', ' . EEM_Ticket::instance()->table() . '.TKT_end_date';
+					break;
+				case 'venue_title':
+					$SQL .= ', Venue.post_title AS venue_title';
+					break;
+				case 'city':
+					$SQL .= ', ' . EEM_Venue::instance()->second_table() . '.VNU_city';
+					break;
+				case 'state':
+					$SQL .= ', ' . EEM_State::instance()->table() . '.STA_name';
+					break;
+			}
+		}
+		return $SQL;
+	}
+
+
+	/**
+	 * @param string   $SQL
+	 * @param WP_Query $wp_query
+	 * @return string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function posts_join(string $SQL, WP_Query $wp_query): string
+	{
+		if (EEH_Event_Query::apply_query_filters($wp_query)) {
+			// Category
+			$SQL = EEH_Event_Query::posts_join_sql_for_show_expired($SQL, EEH_Event_Query::$_event_query_show_expired);
+			$SQL = EEH_Event_Query::posts_join_sql_for_terms($SQL, EEH_Event_Query::$_event_query_category);
+			$SQL = EEH_Event_Query::posts_join_for_orderby($SQL, EEH_Event_Query::$_event_query_orderby);
+		}
+		return $SQL;
+	}
+
+
+	/**
+	 * @param string  $SQL
+	 * @param boolean $show_expired if TRUE, then displayed past events
+	 * @return string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function posts_join_sql_for_show_expired(string $SQL = '', bool $show_expired = false): string
+	{
+		if (! $show_expired) {
+			$datetime_table = EEM_Datetime::instance()->table();
+			// don't add if this is already in the SQL
+			if (strpos($SQL, "INNER JOIN $datetime_table") === false) {
+				$event_table = EEM_Event::instance()->table();
+				$event_table_pk = EEM_Event::instance()->primary_key_name();
+				$SQL .= " INNER JOIN $datetime_table ON ( $event_table.ID = $datetime_table.$event_table_pk ) ";
+			}
+		}
+		return $SQL;
+	}
+
+
+	/**
+	 * @param string $SQL
+	 * @param string $join_terms    pass TRUE or term string, doesn't really matter since this value doesn't really get
+	 *                              used for anything yet
+	 * @return string
+	 */
+	public static function posts_join_sql_for_terms(string $SQL = '', string $join_terms = ''): string
+	{
+		global $wpdb;
+		if (! empty($join_terms) && strpos($SQL, "LEFT JOIN $wpdb->term_relationships") === false) {
+			$SQL .= " LEFT JOIN $wpdb->term_relationships ON ($wpdb->posts.ID = $wpdb->term_relationships.object_id)";
+			$SQL .= " LEFT JOIN $wpdb->term_taxonomy ON ($wpdb->term_relationships.term_taxonomy_id = $wpdb->term_taxonomy.term_taxonomy_id)";
+			$SQL .= " LEFT JOIN $wpdb->terms ON ($wpdb->terms.term_id = $wpdb->term_taxonomy.term_id) ";
+		}
+		return $SQL;
+	}
+
+
+	/**
+	 * usage:  $SQL .= EEH_Event_Query::posts_join_for_orderby( $orderby_params );
+	 *
+	 * @param string $SQL
+	 * @param array  $orderby_params
+	 * @return string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function posts_join_for_orderby(string $SQL = '', array $orderby_params = []): string
+	{
+		foreach ($orderby_params as $orderby) {
+			switch ($orderby) {
+				case 'ticket_start':
+				case 'ticket_end':
+					$SQL .= EEH_Event_Query::_posts_join_for_datetime(
+						$SQL,
+						EEM_Datetime_Ticket::instance()->table() . '.' . EEM_Datetime::instance()->primary_key_name()
+					);
+					$SQL .= EEH_Event_Query::postsJoinForTicket($SQL);
+					break;
+				case 'venue_title':
+				case 'city':
+					$SQL .= EEH_Event_Query::_posts_join_for_event_venue($SQL);
+					break;
+				case 'state':
+					$SQL .= EEH_Event_Query::_posts_join_for_event_venue($SQL);
+					$SQL .= EEH_Event_Query::_posts_join_for_venue_state($SQL);
+					break;
+				case 'start_date':
+				default:
+					$SQL .= EEH_Event_Query::_posts_join_for_datetime($SQL, EEM_Event::instance()->table() . '.ID');
+					break;
+			}
+		}
+		return $SQL;
+	}
+
+
+	/**
+	 * @param string $SQL
+	 * @param string $join
+	 * @return string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	protected static function _posts_join_for_datetime(string $SQL = '', string $join = ''): string
+	{
+		if (! empty($join)) {
+			$datetime_table = EEM_Datetime::instance()->table();
+			// don't add if this is already in the SQL
+			if (strpos($SQL, "INNER JOIN $datetime_table") === false) {
+				$event_table_pk = EEM_Event::instance()->primary_key_name();
+				return " INNER JOIN $datetime_table ON ( $join = $datetime_table.$event_table_pk )";
+			}
+		}
+		return '';
+	}
+
+
+	/**
+	 * @param string $SQL
+	 * @return string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	protected static function _posts_join_for_event_venue(string $SQL = ''): string
+	{
+		$venue_table = EEM_Venue::instance()->table();
+		// don't add joins if they have already been added
+		if (strpos($SQL, "LEFT JOIN $venue_table") === false) {
+			global $wpdb;
+			// grab venue table PK name & event_meta table name
+			$VNU_ID     = EEM_Venue::instance()->primary_key_name();
+			$event_meta = EEM_Event::instance()->second_table();
+			// generate conditions for:  Event <=> Venue  JOIN clause
+			$event_venue_join = "Venue.ID = $event_meta.$VNU_ID";
+			// grab wp_posts (event), venue, and venue_meta table names
+			$wp_posts   = $wpdb->posts;
+			$venue_meta = EEM_Venue::instance()->second_table();
+			// generate JOIN clause for: Event <=> Event Meta
+			$venue_SQL = " LEFT JOIN $event_meta ON ( $wp_posts.ID = $event_meta.EVT_ID )";
+			// generate JOIN clause for: Event Meta <=> Venue
+			$venue_SQL .= " LEFT JOIN $venue_table AS Venue ON ( $event_venue_join )";
+			// generate JOIN clause for: Venue <=> Venue Meta
+			$venue_SQL .= " LEFT JOIN $venue_meta ON ( Venue.ID = $venue_meta.$VNU_ID )";
+			unset($venue_table, $VNU_ID, $event_meta, $venue_meta, $event_venue_join);
+			return $venue_SQL;
+		}
+		unset($VNU_ID, $event_meta, $event_venue_join);
+		return '';
+	}
+
+
+	/**
+	 * @param string $SQL
+	 * @return string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 * @since 5.0.20.p
+	 */
+	protected static function postsJoinForTicket(string $SQL = ''): string
+	{
+		$ticket_table = EEM_Ticket::instance()->table();
+		// don't add if this is already in the SQL
+		if (strpos($SQL, "LEFT JOIN $ticket_table") === false) {
+			$datetime_table = EEM_Datetime::instance()->table();
+			$ticket_table_pk = EEM_Ticket::instance()->primary_key_name();
+			return " LEFT JOIN $ticket_table ON ( $datetime_table.$ticket_table_pk = $ticket_table.$ticket_table_pk )";
+		}
+		return '';
+	}
+
+
+
+	/**
+	 * @param string $SQL
+	 * @return string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	protected static function _posts_join_for_venue_state(string $SQL = ''): string
+	{
+		$state_table = EEM_State::instance()->table();
+		// don't add join if it has already been added
+		if (strpos($SQL, "LEFT JOIN $state_table") === false) {
+			$state_table_pk = EEM_State::instance()->primary_key_name();
+			$venue_meta_table = EEM_Venue::instance()->second_table();
+			// like: wp_esp_venue_meta.STA_ID = wp_esp_state.STA_ID
+			return " LEFT JOIN $state_table ON ( $venue_meta_table.$state_table_pk = $state_table.$state_table_pk )";
+		}
+		return '';
+	}
+
+
+	/**
+	 * @param string   $SQL
+	 * @param WP_Query $wp_query
+	 * @return string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function posts_where(string $SQL, WP_Query $wp_query): string
+	{
+		if (EEH_Event_Query::apply_query_filters($wp_query)) {
+			// Show Expired ?
+			$SQL .= EEH_Event_Query::posts_where_sql_for_show_expired(EEH_Event_Query::$_event_query_show_expired);
+			// Category
+			$SQL .= EEH_Event_Query::posts_where_sql_for_event_category_slug(EEH_Event_Query::$_event_query_category);
+			// Start Date
+			$SQL .= EEH_Event_Query::posts_where_sql_for_event_list_month(EEH_Event_Query::$_event_query_month);
+			// Trashed DateTimes
+			$SQL .= EEH_Event_Query::posts_where_sql_for_non_trashed_datetimes();
+		}
+		return $SQL;
+	}
+
+
+	/**
+	 * @param boolean $show_expired if TRUE, then displayed past events
+	 * @return string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function posts_where_sql_for_show_expired(bool $show_expired = false): string
+	{
+		return ! $show_expired
+			? ' AND ' . EEM_Datetime::instance()->table() . '.DTT_EVT_end > \'' . current_time('mysql', true) . '\' '
+			: '';
+	}
+
+
+	/**
+	 * @param string|null $event_category_slug
+	 * @return string
+	 */
+	public static function posts_where_sql_for_event_category_slug(?string $event_category_slug = null): string
+	{
+		global $wpdb;
+		if (! empty($event_category_slug)) {
+			$event_category_slugs_array   = array_map('trim', explode(',', $event_category_slug));
+			$event_category_slugs_prepare = implode(', ', array_fill(0, count($event_category_slugs_array), '%s'));
+			return $wpdb->prepare(
+				" AND $wpdb->terms.slug IN ($event_category_slugs_prepare) ",
+				$event_category_slugs_array
+			);
+		}
+		return '';
+	}
+
+
+	/**
+	 * @param string|null $month
+	 * @return string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function posts_where_sql_for_event_list_month(?string $month = null): string
+	{
+		$SQL = '';
+		if (! empty($month)) {
+			$datetime_table = EEM_Datetime::instance()->table();
+			// event start date is LESS than the end of the month ( so nothing that doesn't start until next month )
+			$SQL = " AND $datetime_table.DTT_EVT_start <= '";
+			$SQL .= date('Y-m-t 23:59:59', EEH_DTT_Helper::first_of_month_timestamp($month)) . "'";
+			// event end date is GREATER than the start of the month ( so nothing that ended before this month )
+			$SQL .= " AND $datetime_table.DTT_EVT_end >= '";
+			$SQL .= date('Y-m-01 0:0:00', EEH_DTT_Helper::first_of_month_timestamp($month)) . "' ";
+		}
+		return $SQL;
+	}
+
+
+	/**
+	 * @return string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function posts_where_sql_for_non_trashed_datetimes(): string
+	{
+		return ' AND ' . EEM_Datetime::instance()->table() . '.DTT_deleted = 0';
+	}
+
+
+	/**
+	 * @param string   $SQL
+	 * @param WP_Query $wp_query
+	 * @return string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function posts_orderby(string $SQL, WP_Query $wp_query): string
+	{
+		if (EEH_Event_Query::apply_query_filters($wp_query)) {
+			$SQL = EEH_Event_Query::posts_orderby_sql(
+				EEH_Event_Query::$_event_query_orderby,
+				EEH_Event_Query::$_event_query_sort
+			);
+		}
+		return $SQL;
+	}
+
+
+	/**
+	 *    posts_orderby_sql
+	 *    possible parameters:
+	 *    ID
+	 *    start_date
+	 *    end_date
+	 *    event_name
+	 *    category_slug
+	 *    ticket_start
+	 *    ticket_end
+	 *    venue_title
+	 *    city
+	 *    state
+	 *    **IMPORTANT**
+	 *    make sure to also send the $orderby_params array to the posts_join_for_orderby() method
+	 *    or else some of the table references below will result in MySQL errors
+	 *
+	 * @param array  $orderby_params
+	 * @param string $sort
+	 * @return string
+	 * @throws EE_Error
+	 * @throws ReflectionException
+	 */
+	public static function posts_orderby_sql(array $orderby_params = [], string $sort = 'ASC'): string
+	{
+		global $wpdb;
+		$SQL     = '';
+		$counter = 0;
+		$sort    = in_array($sort, ['ASC', 'asc', 'DESC', 'desc'], true)
+			? strtoupper($sort)
+			: 'ASC';
+		// make sure 'orderby' is set in query params
+		if (! isset(self::$_query_params['orderby'])) {
+			self::$_query_params['orderby'] = [];
+		}
+		// loop thru $orderby_params (type cast as array)
+		foreach ($orderby_params as $orderby) {
+			// check if we have already added this param
+			if (isset(self::$_query_params['orderby'][ $orderby ])) {
+				// if so then remove from the $orderby_params so that the count() method below is accurate
+				unset($orderby_params[ $orderby ]);
+				// then bump ahead to the next param
+				continue;
+			}
+			// this will add a comma depending on whether this is the first or last param
+			$glue = $counter === 0 || $counter === count($orderby_params) ? ' ' : ', ';
+			// ok what's we dealing with?
+			switch ($orderby) {
+				case 'id':
+				case 'ID':
+					$SQL .= $glue . $wpdb->posts . '.ID ' . $sort;
+					break;
+				case 'end_date':
+					$SQL .= $glue . EEM_Datetime::instance()->table() . '.DTT_EVT_end ' . $sort;
+					break;
+				case 'event_name':
+					$SQL .= $glue . $wpdb->posts . '.post_title ' . $sort;
+					break;
+				case 'category_slug':
+					$SQL .= $glue . $wpdb->terms . '.slug ' . $sort;
+					break;
+				case 'ticket_start':
+					$SQL .= $glue . EEM_Ticket::instance()->table() . '.TKT_start_date ' . $sort;
+					break;
+				case 'ticket_end':
+					$SQL .= $glue . EEM_Ticket::instance()->table() . '.TKT_end_date ' . $sort;
+					break;
+				case 'venue_title':
+					$SQL .= $glue . 'venue_title ' . $sort;
+					break;
+				case 'city':
+					$SQL .= $glue . EEM_Venue::instance()->second_table() . '.VNU_city ' . $sort;
+					break;
+				case 'state':
+					$SQL .= $glue . EEM_State::instance()->table() . '.STA_name ' . $sort;
+					break;
+				case 'start_date':
+				default:
+					$SQL .= $glue . ' event_start_date ' . $sort;
+					break;
+			}
+			// add to array of orderby params that have been added
+			self::$_query_params['orderby'][ $orderby ] = true;
+			$counter++;
+		}
+		return $SQL;
+	}
+
+
+	/**
+	 * @return RequestInterface
+	 * @since   4.10.14.p
+	 */
+	private static function getRequest(): RequestInterface
+	{
+		return LoaderFactory::getLoader()->getShared(RequestInterface::class);
+	}
 }

Spacing +32 added lines, -32 removed lines

@@ -79,7 +79,7 @@ 
         // ONLY add our filters if this isn't the main wp_query,
         // because if this is the main wp_query we already have
         // our cpt strategies take care of adding things in.
-        if (! $WP_Query->is_main_query()) {
+        if ( ! $WP_Query->is_main_query()) {
             // build event list query
             add_filter('posts_fields', ['EEH_Event_Query', 'posts_fields'], 10, 2);
             add_filter('posts_join', ['EEH_Event_Query', 'posts_join'], 10, 2);
@@ -190,7 +190,7 @@ 
     {
         if (EEH_Event_Query::apply_query_filters($wp_query)) {
             global $wpdb;
-            $clauses['groupby'] = $wpdb->posts . '.ID ';
+            $clauses['groupby'] = $wpdb->posts.'.ID ';
         }
         return $clauses;
     }
@@ -221,23 +221,23 @@ 
      */
     public static function posts_fields_sql_for_orderby(array $orderby_params = []): string
     {
-        $SQL = ', MIN( ' . EEM_Datetime::instance()->table() . '.DTT_EVT_start ) as event_start_date ';
+        $SQL = ', MIN( '.EEM_Datetime::instance()->table().'.DTT_EVT_start ) as event_start_date ';
         foreach ($orderby_params as $orderby) {
             switch ($orderby) {
                 case 'ticket_start':
-                    $SQL .= ', ' . EEM_Ticket::instance()->table() . '.TKT_start_date';
+                    $SQL .= ', '.EEM_Ticket::instance()->table().'.TKT_start_date';
                     break;
                 case 'ticket_end':
-                    $SQL .= ', ' . EEM_Ticket::instance()->table() . '.TKT_end_date';
+                    $SQL .= ', '.EEM_Ticket::instance()->table().'.TKT_end_date';
                     break;
                 case 'venue_title':
                     $SQL .= ', Venue.post_title AS venue_title';
                     break;
                 case 'city':
-                    $SQL .= ', ' . EEM_Venue::instance()->second_table() . '.VNU_city';
+                    $SQL .= ', '.EEM_Venue::instance()->second_table().'.VNU_city';
                     break;
                 case 'state':
-                    $SQL .= ', ' . EEM_State::instance()->table() . '.STA_name';
+                    $SQL .= ', '.EEM_State::instance()->table().'.STA_name';
                     break;
             }
         }
@@ -273,7 +273,7 @@ 
      */
     public static function posts_join_sql_for_show_expired(string $SQL = '', bool $show_expired = false): string
     {
-        if (! $show_expired) {
+        if ( ! $show_expired) {
             $datetime_table = EEM_Datetime::instance()->table();
             // don't add if this is already in the SQL
             if (strpos($SQL, "INNER JOIN $datetime_table") === false) {
@@ -295,7 +295,7 @@ 
     public static function posts_join_sql_for_terms(string $SQL = '', string $join_terms = ''): string
     {
         global $wpdb;
-        if (! empty($join_terms) && strpos($SQL, "LEFT JOIN $wpdb->term_relationships") === false) {
+        if ( ! empty($join_terms) && strpos($SQL, "LEFT JOIN $wpdb->term_relationships") === false) {
             $SQL .= " LEFT JOIN $wpdb->term_relationships ON ($wpdb->posts.ID = $wpdb->term_relationships.object_id)";
             $SQL .= " LEFT JOIN $wpdb->term_taxonomy ON ($wpdb->term_relationships.term_taxonomy_id = $wpdb->term_taxonomy.term_taxonomy_id)";
             $SQL .= " LEFT JOIN $wpdb->terms ON ($wpdb->terms.term_id = $wpdb->term_taxonomy.term_id) ";
@@ -321,7 +321,7 @@ 
                 case 'ticket_end':
                     $SQL .= EEH_Event_Query::_posts_join_for_datetime(
                         $SQL,
-                        EEM_Datetime_Ticket::instance()->table() . '.' . EEM_Datetime::instance()->primary_key_name()
+                        EEM_Datetime_Ticket::instance()->table().'.'.EEM_Datetime::instance()->primary_key_name()
                     );
                     $SQL .= EEH_Event_Query::postsJoinForTicket($SQL);
                     break;
@@ -335,7 +335,7 @@ 
                     break;
                 case 'start_date':
                 default:
-                    $SQL .= EEH_Event_Query::_posts_join_for_datetime($SQL, EEM_Event::instance()->table() . '.ID');
+                    $SQL .= EEH_Event_Query::_posts_join_for_datetime($SQL, EEM_Event::instance()->table().'.ID');
                     break;
             }
         }
@@ -352,7 +352,7 @@ 
      */
     protected static function _posts_join_for_datetime(string $SQL = '', string $join = ''): string
     {
-        if (! empty($join)) {
+        if ( ! empty($join)) {
             $datetime_table = EEM_Datetime::instance()->table();
             // don't add if this is already in the SQL
             if (strpos($SQL, "INNER JOIN $datetime_table") === false) {
@@ -471,7 +471,7 @@ 
     public static function posts_where_sql_for_show_expired(bool $show_expired = false): string
     {
         return ! $show_expired
-            ? ' AND ' . EEM_Datetime::instance()->table() . '.DTT_EVT_end > \'' . current_time('mysql', true) . '\' '
+            ? ' AND '.EEM_Datetime::instance()->table().'.DTT_EVT_end > \''.current_time('mysql', true).'\' '
             : '';
     }
 
@@ -483,7 +483,7 @@ 
     public static function posts_where_sql_for_event_category_slug(?string $event_category_slug = null): string
     {
         global $wpdb;
-        if (! empty($event_category_slug)) {
+        if ( ! empty($event_category_slug)) {
             $event_category_slugs_array   = array_map('trim', explode(',', $event_category_slug));
             $event_category_slugs_prepare = implode(', ', array_fill(0, count($event_category_slugs_array), '%s'));
             return $wpdb->prepare(
@@ -504,14 +504,14 @@ 
     public static function posts_where_sql_for_event_list_month(?string $month = null): string
     {
         $SQL = '';
-        if (! empty($month)) {
+        if ( ! empty($month)) {
             $datetime_table = EEM_Datetime::instance()->table();
             // event start date is LESS than the end of the month ( so nothing that doesn't start until next month )
             $SQL = " AND $datetime_table.DTT_EVT_start <= '";
-            $SQL .= date('Y-m-t 23:59:59', EEH_DTT_Helper::first_of_month_timestamp($month)) . "'";
+            $SQL .= date('Y-m-t 23:59:59', EEH_DTT_Helper::first_of_month_timestamp($month))."'";
             // event end date is GREATER than the start of the month ( so nothing that ended before this month )
             $SQL .= " AND $datetime_table.DTT_EVT_end >= '";
-            $SQL .= date('Y-m-01 0:0:00', EEH_DTT_Helper::first_of_month_timestamp($month)) . "' ";
+            $SQL .= date('Y-m-01 0:0:00', EEH_DTT_Helper::first_of_month_timestamp($month))."' ";
         }
         return $SQL;
     }
@@ -524,7 +524,7 @@ 
      */
     public static function posts_where_sql_for_non_trashed_datetimes(): string
     {
-        return ' AND ' . EEM_Datetime::instance()->table() . '.DTT_deleted = 0';
+        return ' AND '.EEM_Datetime::instance()->table().'.DTT_deleted = 0';
     }
 
 
@@ -579,15 +579,15 @@ 
             ? strtoupper($sort)
             : 'ASC';
         // make sure 'orderby' is set in query params
-        if (! isset(self::$_query_params['orderby'])) {
+        if ( ! isset(self::$_query_params['orderby'])) {
             self::$_query_params['orderby'] = [];
         }
         // loop thru $orderby_params (type cast as array)
         foreach ($orderby_params as $orderby) {
             // check if we have already added this param
-            if (isset(self::$_query_params['orderby'][ $orderby ])) {
+            if (isset(self::$_query_params['orderby'][$orderby])) {
                 // if so then remove from the $orderby_params so that the count() method below is accurate
-                unset($orderby_params[ $orderby ]);
+                unset($orderby_params[$orderby]);
                 // then bump ahead to the next param
                 continue;
             }
@@ -597,39 +597,39 @@ 
             switch ($orderby) {
                 case 'id':
                 case 'ID':
-                    $SQL .= $glue . $wpdb->posts . '.ID ' . $sort;
+                    $SQL .= $glue.$wpdb->posts.'.ID '.$sort;
                     break;
                 case 'end_date':
-                    $SQL .= $glue . EEM_Datetime::instance()->table() . '.DTT_EVT_end ' . $sort;
+                    $SQL .= $glue.EEM_Datetime::instance()->table().'.DTT_EVT_end '.$sort;
                     break;
                 case 'event_name':
-                    $SQL .= $glue . $wpdb->posts . '.post_title ' . $sort;
+                    $SQL .= $glue.$wpdb->posts.'.post_title '.$sort;
                     break;
                 case 'category_slug':
-                    $SQL .= $glue . $wpdb->terms . '.slug ' . $sort;
+                    $SQL .= $glue.$wpdb->terms.'.slug '.$sort;
                     break;
                 case 'ticket_start':
-                    $SQL .= $glue . EEM_Ticket::instance()->table() . '.TKT_start_date ' . $sort;
+                    $SQL .= $glue.EEM_Ticket::instance()->table().'.TKT_start_date '.$sort;
                     break;
                 case 'ticket_end':
-                    $SQL .= $glue . EEM_Ticket::instance()->table() . '.TKT_end_date ' . $sort;
+                    $SQL .= $glue.EEM_Ticket::instance()->table().'.TKT_end_date '.$sort;
                     break;
                 case 'venue_title':
-                    $SQL .= $glue . 'venue_title ' . $sort;
+                    $SQL .= $glue.'venue_title '.$sort;
                     break;
                 case 'city':
-                    $SQL .= $glue . EEM_Venue::instance()->second_table() . '.VNU_city ' . $sort;
+                    $SQL .= $glue.EEM_Venue::instance()->second_table().'.VNU_city '.$sort;
                     break;
                 case 'state':
-                    $SQL .= $glue . EEM_State::instance()->table() . '.STA_name ' . $sort;
+                    $SQL .= $glue.EEM_State::instance()->table().'.STA_name '.$sort;
                     break;
                 case 'start_date':
                 default:
-                    $SQL .= $glue . ' event_start_date ' . $sort;
+                    $SQL .= $glue.' event_start_date '.$sort;
                     break;
             }
             // add to array of orderby params that have been added
-            self::$_query_params['orderby'][ $orderby ] = true;
+            self::$_query_params['orderby'][$orderby] = true;
             $counter++;
         }
         return $SQL;