AyeCode / invoicing

includes/admin/class-getpaid-admin-setup-wizard.php

Indentation +385 added lines, -385 removed lines

@@ -17,397 +17,397 @@
  */
 class GetPaid_Admin_Setup_Wizard {
 
-	/**
-	 * @var string Current Step
-	 */
-	protected $step = '';
-
-	/**
-	 * @var string|false Previous Step
-	 */
-	protected $previous_step = '';
-
-	/**
-	 * @var string|false Next Step
-	 */
-	protected $next_step = '';
-
-	/**
-	 * @var array All available steps for the setup wizard
-	 */
-	protected $steps = array();
-
-	/**
-	 * Class constructor.
-	 *
-	 * @since 2.4.0
-	 */
-	public function __construct() {
-
-		if ( apply_filters( 'getpaid_enable_setup_wizard', true ) && wpinv_current_user_can_manage_invoicing() ) {
-			add_action( 'admin_menu', array( $this, 'add_menu' ) );
-			add_action( 'current_screen', array( $this, 'setup_wizard' ) );
-		}
-
-	}
-
-	/**
-	 * Add admin menus/screens.
-	 *
-	 * @since 2.4.0
-	 */
-	public function add_menu() {
-		add_dashboard_page( '', '', wpinv_get_capability(), 'gp-setup', '' );
-	}
-
-	/**
-	 * Sets up the setup wizard.
-	 *
-	 * @since 2.4.0
-	 */
-	public function setup_wizard() {
-
-		if ( isset( $_GET['page'] ) && 'gp-setup' === $_GET['page'] ) {
-			$this->setup_globals();
-			$this->maybe_save_current_step();
-			$this->display_wizard();
-			exit;
-		}
-
-	}
-
-	/**
-	 * Sets up class variables.
-	 *
-	 * @since 2.4.0
-	 */
-	protected function setup_globals() {
-		$this->steps         = $this->get_setup_steps();
-		$this->step          = $this->get_current_step();
-		$this->previous_step = $this->get_previous_step();
-		$this->next_step     = $this->get_next_step();
-	}
-
-	/**
-	 * Saves the current step.
-	 *
-	 * @since 2.4.0
-	 */
-	protected function maybe_save_current_step() {
-		if ( ! empty( $_POST['save_step'] ) && is_callable( $this->steps[ $this->step ]['handler'] ) ) {
-			call_user_func( $this->steps[ $this->step ]['handler'], $this );
-		}
-	}
-
-	/**
-	 * Returns the setup steps.
-	 *
-	 * @since 2.4.0
-	 * @return array
-	 */
-	protected function get_setup_steps() {
-
-		$steps = array(
-
-			'introduction'     => array(
-				'name'    => __( 'Introduction', 'invoicing' ),
-				'view'    => array( $this, 'setup_introduction' ),
-				'handler' => '',
-			),
-
-			'business_details'             => array(
-				'name'    => __( "Business Details", 'invoicing' ),
-				'view'    => array( $this, 'setup_business' ),
-				'handler' => '',
-			),
-
-			'currency' => array(
-				'name'    => __( 'Currency', 'invoicing' ),
-				'view'    => array( $this, 'setup_currency' ),
-				'handler' => '',
-			),
-
-			'payments'        => array(
-				'name'    => __( 'Payment Gateways', 'invoicing' ),
-				'view'    => array( $this, 'setup_payments' ),
-				'handler' => array( $this, 'setup_payments_save' ),
-			),
-
-			'recommend'          => array(
-				'name'    => __( 'Recommend', 'invoicing' ),
-				'view'    => array( $this, 'setup_recommend' ),
-				'handler' => '',
-			),
-
-			'next_steps'       => array(
-				'name'    => __( 'Get Paid', 'invoicing' ),
-				'view'    => array( $this, 'setup_ready' ),
-				'handler' => '',
-			),
-
-		);
-
-		return apply_filters( 'getpaid_setup_wizard_steps', $steps );
-
-	}
-
-	/**
-	 * Returns the current step.
-	 *
-	 * @since 2.4.0
-	 * @return string
-	 */
-	protected function get_current_step() {
-		$step = isset( $_GET['step'] ) ? sanitize_key( $_GET['step'] ) : '';
-		return ! empty( $step ) && in_array( $step, array_keys( $this->steps ) ) ? $step : current( array_keys( $this->steps ) );
-	}
-
-	/**
-	 * Returns the previous step.
-	 *
-	 * @since 2.4.0
-	 * @return string|false
-	 */
-	protected function get_previous_step() {
-
-		$previous = false;
-		$current  = $this->step;
-		foreach ( array_keys( $this->steps ) as $step ) {
-			if ( $current === $step ) {
-				return $previous;
-			}
-
-			$previous = $step;
-		}
-
-		return false;
-	}
-
-	/**
-	 * Returns the next step.
-	 *
-	 * @since 2.4.0
-	 * @return string|false
-	 */
-	protected function get_next_step() {
-
-		$on_current = false;
-		$current    = $this->step;
-		foreach ( array_keys( $this->steps ) as $step ) {
-
-			if ( $on_current ) {
-				return $step;
-			}
-
-			if ( $current === $step ) {
-				return $on_current = true;
-			}
-
-		}
-
-		return false;
-	}
-
-	/**
-	 * Displays the setup wizard.
-	 *
-	 * @since 2.4.0
-	 */
-	public function display_wizard() {
-		$this->display_header();
-		$this->display_current_step();
-		$this->display_footer();
-	}
-
-	/**
-	 * Displays the Wizard Header.
-	 *
-	 * @since 2.0.0
-	 */
-	public function display_header() {
-		$steps     = $this->steps;
-		$current   = $this->step;
-		$next_step = $this->next_step;
-		array_shift( $steps );
-		include plugin_dir_path( __FILE__ ) . 'views/wizard-header.php';
-	}
-
-	/**
-	 * Displays the content for the current step.
-	 *
-	 * @since 2.4.0
-	 */
-	public function display_current_step() {
-		?>
+    /**
+     * @var string Current Step
+     */
+    protected $step = '';
+
+    /**
+     * @var string|false Previous Step
+     */
+    protected $previous_step = '';
+
+    /**
+     * @var string|false Next Step
+     */
+    protected $next_step = '';
+
+    /**
+     * @var array All available steps for the setup wizard
+     */
+    protected $steps = array();
+
+    /**
+     * Class constructor.
+     *
+     * @since 2.4.0
+     */
+    public function __construct() {
+
+        if ( apply_filters( 'getpaid_enable_setup_wizard', true ) && wpinv_current_user_can_manage_invoicing() ) {
+            add_action( 'admin_menu', array( $this, 'add_menu' ) );
+            add_action( 'current_screen', array( $this, 'setup_wizard' ) );
+        }
+
+    }
+
+    /**
+     * Add admin menus/screens.
+     *
+     * @since 2.4.0
+     */
+    public function add_menu() {
+        add_dashboard_page( '', '', wpinv_get_capability(), 'gp-setup', '' );
+    }
+
+    /**
+     * Sets up the setup wizard.
+     *
+     * @since 2.4.0
+     */
+    public function setup_wizard() {
+
+        if ( isset( $_GET['page'] ) && 'gp-setup' === $_GET['page'] ) {
+            $this->setup_globals();
+            $this->maybe_save_current_step();
+            $this->display_wizard();
+            exit;
+        }
+
+    }
+
+    /**
+     * Sets up class variables.
+     *
+     * @since 2.4.0
+     */
+    protected function setup_globals() {
+        $this->steps         = $this->get_setup_steps();
+        $this->step          = $this->get_current_step();
+        $this->previous_step = $this->get_previous_step();
+        $this->next_step     = $this->get_next_step();
+    }
+
+    /**
+     * Saves the current step.
+     *
+     * @since 2.4.0
+     */
+    protected function maybe_save_current_step() {
+        if ( ! empty( $_POST['save_step'] ) && is_callable( $this->steps[ $this->step ]['handler'] ) ) {
+            call_user_func( $this->steps[ $this->step ]['handler'], $this );
+        }
+    }
+
+    /**
+     * Returns the setup steps.
+     *
+     * @since 2.4.0
+     * @return array
+     */
+    protected function get_setup_steps() {
+
+        $steps = array(
+
+            'introduction'     => array(
+                'name'    => __( 'Introduction', 'invoicing' ),
+                'view'    => array( $this, 'setup_introduction' ),
+                'handler' => '',
+            ),
+
+            'business_details'             => array(
+                'name'    => __( "Business Details", 'invoicing' ),
+                'view'    => array( $this, 'setup_business' ),
+                'handler' => '',
+            ),
+
+            'currency' => array(
+                'name'    => __( 'Currency', 'invoicing' ),
+                'view'    => array( $this, 'setup_currency' ),
+                'handler' => '',
+            ),
+
+            'payments'        => array(
+                'name'    => __( 'Payment Gateways', 'invoicing' ),
+                'view'    => array( $this, 'setup_payments' ),
+                'handler' => array( $this, 'setup_payments_save' ),
+            ),
+
+            'recommend'          => array(
+                'name'    => __( 'Recommend', 'invoicing' ),
+                'view'    => array( $this, 'setup_recommend' ),
+                'handler' => '',
+            ),
+
+            'next_steps'       => array(
+                'name'    => __( 'Get Paid', 'invoicing' ),
+                'view'    => array( $this, 'setup_ready' ),
+                'handler' => '',
+            ),
+
+        );
+
+        return apply_filters( 'getpaid_setup_wizard_steps', $steps );
+
+    }
+
+    /**
+     * Returns the current step.
+     *
+     * @since 2.4.0
+     * @return string
+     */
+    protected function get_current_step() {
+        $step = isset( $_GET['step'] ) ? sanitize_key( $_GET['step'] ) : '';
+        return ! empty( $step ) && in_array( $step, array_keys( $this->steps ) ) ? $step : current( array_keys( $this->steps ) );
+    }
+
+    /**
+     * Returns the previous step.
+     *
+     * @since 2.4.0
+     * @return string|false
+     */
+    protected function get_previous_step() {
+
+        $previous = false;
+        $current  = $this->step;
+        foreach ( array_keys( $this->steps ) as $step ) {
+            if ( $current === $step ) {
+                return $previous;
+            }
+
+            $previous = $step;
+        }
+
+        return false;
+    }
+
+    /**
+     * Returns the next step.
+     *
+     * @since 2.4.0
+     * @return string|false
+     */
+    protected function get_next_step() {
+
+        $on_current = false;
+        $current    = $this->step;
+        foreach ( array_keys( $this->steps ) as $step ) {
+
+            if ( $on_current ) {
+                return $step;
+            }
+
+            if ( $current === $step ) {
+                return $on_current = true;
+            }
+
+        }
+
+        return false;
+    }
+
+    /**
+     * Displays the setup wizard.
+     *
+     * @since 2.4.0
+     */
+    public function display_wizard() {
+        $this->display_header();
+        $this->display_current_step();
+        $this->display_footer();
+    }
+
+    /**
+     * Displays the Wizard Header.
+     *
+     * @since 2.0.0
+     */
+    public function display_header() {
+        $steps     = $this->steps;
+        $current   = $this->step;
+        $next_step = $this->next_step;
+        array_shift( $steps );
+        include plugin_dir_path( __FILE__ ) . 'views/wizard-header.php';
+    }
+
+    /**
+     * Displays the content for the current step.
+     *
+     * @since 2.4.0
+     */
+    public function display_current_step() {
+        ?>
 			<div class="gp-setup-content rowx mw-100 text-center mb-3">
 				<div class="col-12 col-md-5 m-auto">
 					<?php call_user_func( $this->steps[ $this->step ]['view'], $this ); ?>
 				</div>
 			</div>
 		<?php
-	}
-
-	/**
-	 * Setup Wizard Footer.
-	 *
-	 * @since 2.4.0
-	 */
-	public function display_footer() {
-
-		if ( isset( $_GET['step'] ) ) {
-			$next_url = esc_url( $this->get_next_step_link() );
-			$label    = $this->step == 'next_steps' ? __( 'Return to the WordPress Dashboard', 'invoicing' ) : __( 'Skip this step', 'invoicing' );
-
-			echo '<p class="gd-return-to-dashboard-wrap"> <a href="' . $next_url . '" class="gd-return-to-dashboard btn btn-link d-block text-muted">' . $label . '</a></p>';
-		}
-
-		echo '</body></html>';
-	}
-
-	/**
-	 * Introduction step.
-	 *
-	 * @since 2.0.0
-	 */
-	public function setup_introduction() {
-		$next_url = $this->get_next_step_link();
-		include plugin_dir_path( __FILE__ ) . 'views/wizard-introduction.php';
-	}
-
-	/**
-	 * Get the URL for the next step's screen.
-	 *
-	 * @param string step   slug (default: current step)
-	 *
-	 * @return string       URL for next step if a next step exists.
-	 *                      Admin URL if it's the last step.
-	 *                      Empty string on failure.
-	 * @since 3.0.0
-	 */
-	public function get_next_step_link( $step = '' ) {
-		if ( ! $step ) {
-			$step = $this->step;
-		}
-
-		$keys = array_keys( $this->steps );
-		if ( end( $keys ) === $step ) {
-			return admin_url();
-		}
-
-		$step_index = array_search( $step, $keys );
-		if ( false === $step_index ) {
-			return '';
-		}
-
-		return remove_query_arg('settings-updated', add_query_arg( 'step', $keys[ $step_index + 1 ] ));
-	}
-
-	/**
-	 * Setup maps api.
-	 *
-	 * @since 2.0.0
-	 */
-	public function setup_business() {
-		$next_url = $this->get_next_step_link();
-		$wizard   = $this;
-		$page     = 'wpinv_settings_general_main';
-		$section  = 'wpinv_settings_general_main';
-		include plugin_dir_path( __FILE__ ) . 'views/wizard-settings.php';
-	}
-
-	/**
-	 * Default Location settings.
-	 *
-	 * @since 2.0.0
-	 */
-	public function setup_currency() {
-		$next_url = $this->get_next_step_link();
-		$wizard   = $this;
-		$page     = 'wpinv_settings_general_currency_section';
-		$section  = 'wpinv_settings_general_currency_section';
-		include plugin_dir_path( __FILE__ ) . 'views/wizard-settings.php';
-	}
-
-	/**
-	 * Installation of recommended plugins.
-	 *
-	 * @since 1.0.0
-	 */
-	public function setup_recommend() {
-		$next_url            = $this->get_next_step_link();
-		$recommended_plugins = self::get_recommend_wp_plugins();
-		include plugin_dir_path( __FILE__ ) . 'views/wizard-plugins.php';
-	}
-
-	/**
-	 * A list of recommended wp.org plugins.
-	 * @return array
-	 */
-	public static function get_recommend_wp_plugins(){
-		return array(
-			'ayecode-connect' => array(
-				'file'   => 'ayecode-connect/ayecode-connect.php',
-				'url'    => 'https://wordpress.org/plugins/ayecode-connect/',
-				'slug'   => 'ayecode-connect',
-				'name'   => 'AyeCode Connect',
-				'desc'   => __( 'Documentation and Support from within your WordPress admin.', 'geodirectory' ),
-			),
-			'invoicing-quotes' => array(
-				'file'   => 'invoicing-quotes/wpinv-quote.php',
-				'url'    => 'https://wordpress.org/plugins/invoicing-quotes/',
-				'slug'   => 'invoicing-quotes',
-				'name'   => 'Customer Quotes',
-				'desc'   => __('Create & Send Quotes to Customers and have them accept and pay.','geodirectory'),
-			),
-			'userswp'    => array(
-				'file'   => 'userswp/userswp.php',
-				'url'    => 'https://wordpress.org/plugins/userswp/',
-				'slug'   => 'userswp',
-				'name'   => 'UsersWP',
-				'desc'   => __('Frontend user login and registration as well as slick profile pages.','geodirectory'),
-			),
-		);
-	}
-
-	/**
-	 * Dummy Data setup.
-	 *
-	 * @since 2.4.0
-	 */
-	public function setup_payments() {
-		$next_url = $this->get_next_step_link();
-		include plugin_dir_path( __FILE__ ) . 'views/wizard-gateways.php';
-	}
-
-	/**
-	 * Dummy data save.
-	 *
-	 * This is done via ajax so we just pass onto the next step.
-	 *
-	 * @since 2.0.0
-	 */
-	public function setup_payments_save() {
-		check_admin_referer( 'getpaid-setup-wizard', 'getpaid-setup-wizard' );
-		wpinv_update_option( 'manual_active', ! empty( $_POST['enable-manual-gateway'] ) );
-
-		if ( ! empty( $_POST['paypal-email'] ) ) {
-			wpinv_update_option( 'paypal_email', sanitize_email( $_POST['paypal-email'] ) );
-			wpinv_update_option( 'paypal_active', 1 );
-			wpinv_update_option( 'paypal_sandbox', 0 );
-		}
-
-		wp_redirect( esc_url_raw( $this->get_next_step_link() ) );
-		exit;
-	}
-
-	/**
-	 * Final step.
-	 *
-	 * @since 2.0.0
-	 */
-	public function setup_ready() {
-		include plugin_dir_path( __FILE__ ) . 'views/wizard-thank-you.php';
-	}
+    }
+
+    /**
+     * Setup Wizard Footer.
+     *
+     * @since 2.4.0
+     */
+    public function display_footer() {
+
+        if ( isset( $_GET['step'] ) ) {
+            $next_url = esc_url( $this->get_next_step_link() );
+            $label    = $this->step == 'next_steps' ? __( 'Return to the WordPress Dashboard', 'invoicing' ) : __( 'Skip this step', 'invoicing' );
+
+            echo '<p class="gd-return-to-dashboard-wrap"> <a href="' . $next_url . '" class="gd-return-to-dashboard btn btn-link d-block text-muted">' . $label . '</a></p>';
+        }
+
+        echo '</body></html>';
+    }
+
+    /**
+     * Introduction step.
+     *
+     * @since 2.0.0
+     */
+    public function setup_introduction() {
+        $next_url = $this->get_next_step_link();
+        include plugin_dir_path( __FILE__ ) . 'views/wizard-introduction.php';
+    }
+
+    /**
+     * Get the URL for the next step's screen.
+     *
+     * @param string step   slug (default: current step)
+     *
+     * @return string       URL for next step if a next step exists.
+     *                      Admin URL if it's the last step.
+     *                      Empty string on failure.
+     * @since 3.0.0
+     */
+    public function get_next_step_link( $step = '' ) {
+        if ( ! $step ) {
+            $step = $this->step;
+        }
+
+        $keys = array_keys( $this->steps );
+        if ( end( $keys ) === $step ) {
+            return admin_url();
+        }
+
+        $step_index = array_search( $step, $keys );
+        if ( false === $step_index ) {
+            return '';
+        }
+
+        return remove_query_arg('settings-updated', add_query_arg( 'step', $keys[ $step_index + 1 ] ));
+    }
+
+    /**
+     * Setup maps api.
+     *
+     * @since 2.0.0
+     */
+    public function setup_business() {
+        $next_url = $this->get_next_step_link();
+        $wizard   = $this;
+        $page     = 'wpinv_settings_general_main';
+        $section  = 'wpinv_settings_general_main';
+        include plugin_dir_path( __FILE__ ) . 'views/wizard-settings.php';
+    }
+
+    /**
+     * Default Location settings.
+     *
+     * @since 2.0.0
+     */
+    public function setup_currency() {
+        $next_url = $this->get_next_step_link();
+        $wizard   = $this;
+        $page     = 'wpinv_settings_general_currency_section';
+        $section  = 'wpinv_settings_general_currency_section';
+        include plugin_dir_path( __FILE__ ) . 'views/wizard-settings.php';
+    }
+
+    /**
+     * Installation of recommended plugins.
+     *
+     * @since 1.0.0
+     */
+    public function setup_recommend() {
+        $next_url            = $this->get_next_step_link();
+        $recommended_plugins = self::get_recommend_wp_plugins();
+        include plugin_dir_path( __FILE__ ) . 'views/wizard-plugins.php';
+    }
+
+    /**
+     * A list of recommended wp.org plugins.
+     * @return array
+     */
+    public static function get_recommend_wp_plugins(){
+        return array(
+            'ayecode-connect' => array(
+                'file'   => 'ayecode-connect/ayecode-connect.php',
+                'url'    => 'https://wordpress.org/plugins/ayecode-connect/',
+                'slug'   => 'ayecode-connect',
+                'name'   => 'AyeCode Connect',
+                'desc'   => __( 'Documentation and Support from within your WordPress admin.', 'geodirectory' ),
+            ),
+            'invoicing-quotes' => array(
+                'file'   => 'invoicing-quotes/wpinv-quote.php',
+                'url'    => 'https://wordpress.org/plugins/invoicing-quotes/',
+                'slug'   => 'invoicing-quotes',
+                'name'   => 'Customer Quotes',
+                'desc'   => __('Create & Send Quotes to Customers and have them accept and pay.','geodirectory'),
+            ),
+            'userswp'    => array(
+                'file'   => 'userswp/userswp.php',
+                'url'    => 'https://wordpress.org/plugins/userswp/',
+                'slug'   => 'userswp',
+                'name'   => 'UsersWP',
+                'desc'   => __('Frontend user login and registration as well as slick profile pages.','geodirectory'),
+            ),
+        );
+    }
+
+    /**
+     * Dummy Data setup.
+     *
+     * @since 2.4.0
+     */
+    public function setup_payments() {
+        $next_url = $this->get_next_step_link();
+        include plugin_dir_path( __FILE__ ) . 'views/wizard-gateways.php';
+    }
+
+    /**
+     * Dummy data save.
+     *
+     * This is done via ajax so we just pass onto the next step.
+     *
+     * @since 2.0.0
+     */
+    public function setup_payments_save() {
+        check_admin_referer( 'getpaid-setup-wizard', 'getpaid-setup-wizard' );
+        wpinv_update_option( 'manual_active', ! empty( $_POST['enable-manual-gateway'] ) );
+
+        if ( ! empty( $_POST['paypal-email'] ) ) {
+            wpinv_update_option( 'paypal_email', sanitize_email( $_POST['paypal-email'] ) );
+            wpinv_update_option( 'paypal_active', 1 );
+            wpinv_update_option( 'paypal_sandbox', 0 );
+        }
+
+        wp_redirect( esc_url_raw( $this->get_next_step_link() ) );
+        exit;
+    }
+
+    /**
+     * Final step.
+     *
+     * @since 2.0.0
+     */
+    public function setup_ready() {
+        include plugin_dir_path( __FILE__ ) . 'views/wizard-thank-you.php';
+    }
 
 }
 

includes/admin/register-settings.php

Indentation +299 added lines, -299 removed lines

@@ -195,13 +195,13 @@ 
     $name       = isset( $option['name'] ) ? $option['name'] : '';
     $cb         = "wpinv_{$option['type']}_callback";
     $section    = "wpinv_settings_{$tab}_$section";
-	$is_wizzard = is_admin() && isset( $_GET['page'] ) && 'gp-setup' == $_GET['page'];
+    $is_wizzard = is_admin() && isset( $_GET['page'] ) && 'gp-setup' == $_GET['page'];
 
-	if ( isset( $option['desc'] ) && ( ! $is_wizzard && ! empty( $option['help-tip'] ) ) ) {
-		$tip   = wpinv_clean( $option['desc'] );
-		$name .= "<span class='dashicons dashicons-editor-help wpi-help-tip' title='$tip'></span>";
-		unset( $option['desc'] );
-	}
+    if ( isset( $option['desc'] ) && ( ! $is_wizzard && ! empty( $option['help-tip'] ) ) ) {
+        $tip   = wpinv_clean( $option['desc'] );
+        $name .= "<span class='dashicons dashicons-editor-help wpi-help-tip' title='$tip'></span>";
+        unset( $option['desc'] );
+    }
 
     // Loop through all tabs.
     add_settings_field(
@@ -228,9 +228,9 @@ 
             'faux'        => isset( $option['faux'] )        ? $option['faux']        : false,
             'onchange'    => isset( $option['onchange'] )   ? $option['onchange']     : '',
             'custom'      => isset( $option['custom'] )     ? $option['custom']       : '',
-			'default_content' => isset( $option['default_content'] )     ? $option['default_content']       : '',
-			'class'       => isset( $option['class'] )     ? $option['class']         : '',
-			'style'       => isset( $option['style'] )     ? $option['style']         : '',
+            'default_content' => isset( $option['default_content'] )     ? $option['default_content']       : '',
+            'class'       => isset( $option['class'] )     ? $option['class']         : '',
+            'style'       => isset( $option['style'] )     ? $option['style']         : '',
             'cols'        => isset( $option['cols'] ) && (int) $option['cols'] > 0 ? (int) $option['cols'] : 50,
             'rows'        => isset( $option['rows'] ) && (int) $option['rows'] > 0 ? (int) $option['rows'] : 5,
         )
@@ -244,7 +244,7 @@ 
  * @return array
  */
 function wpinv_get_registered_settings() {
-	return array_filter( apply_filters( 'wpinv_registered_settings', wpinv_get_data( 'admin-settings' ) ) );
+    return array_filter( apply_filters( 'wpinv_registered_settings', wpinv_get_data( 'admin-settings' ) ) );
 }
 
 /**
@@ -263,18 +263,18 @@ 
  */
 function wpinv_settings_sanitize( $input = array() ) {
 
-	$wpinv_options = wpinv_get_options();
-	$raw_referrer  = wp_get_raw_referer();
+    $wpinv_options = wpinv_get_options();
+    $raw_referrer  = wp_get_raw_referer();
 
     if ( empty( $raw_referrer ) ) {
-		return array_merge( $wpinv_options, $input );
+        return array_merge( $wpinv_options, $input );
     }
 
     wp_parse_str( $raw_referrer, $referrer );
 
-	if ( in_array( 'gp-setup', $referrer ) ) {
-		return array_merge( $wpinv_options, $input );
-	}
+    if ( in_array( 'gp-setup', $referrer ) ) {
+        return array_merge( $wpinv_options, $input );
+    }
 
     $settings = wpinv_get_registered_settings();
     $tab      = isset( $referrer['tab'] ) ? $referrer['tab'] : 'general';
@@ -296,10 +296,10 @@ 
         }
 
         // General filter
-		$input[ $key ] = apply_filters( 'wpinv_settings_sanitize', $input[ $key ], $key );
+        $input[ $key ] = apply_filters( 'wpinv_settings_sanitize', $input[ $key ], $key );
 
-		// Key specific filter.
-		$input[ $key ] = apply_filters( "wpinv_settings_sanitize_$key", $input[ $key ] );
+        // Key specific filter.
+        $input[ $key ] = apply_filters( "wpinv_settings_sanitize_$key", $input[ $key ] );
     }
 
     // Loop through the whitelist and unset any that are empty for the tab being saved
@@ -342,14 +342,14 @@ 
 
     foreach ( $new_rates as $rate ) {
 
-		$rate['rate']    = wpinv_sanitize_amount( $rate['rate'] );
-		$rate['name']    = sanitize_text_field( $rate['name'] );
-		$rate['state']   = sanitize_text_field( $rate['state'] );
-		$rate['country'] = sanitize_text_field( $rate['country'] );
-		$rate['global']  = empty( $rate['state'] );
-		$tax_rates[]     = $rate;
+        $rate['rate']    = wpinv_sanitize_amount( $rate['rate'] );
+        $rate['name']    = sanitize_text_field( $rate['name'] );
+        $rate['state']   = sanitize_text_field( $rate['state'] );
+        $rate['country'] = sanitize_text_field( $rate['country'] );
+        $rate['global']  = empty( $rate['state'] );
+        $tax_rates[]     = $rate;
 
-	}
+    }
 
     update_option( 'wpinv_tax_rates', $tax_rates );
 
@@ -362,11 +362,11 @@ 
     $tabs['general']  = __( 'General', 'invoicing' );
     $tabs['gateways'] = __( 'Payment Gateways', 'invoicing' );
     $tabs['taxes']    = __( 'Taxes', 'invoicing' );
-	$tabs['emails']   = __( 'Emails', 'invoicing' );
+    $tabs['emails']   = __( 'Emails', 'invoicing' );
 
-	if ( count( getpaid_get_integration_settings() ) > 0 ) {
-		$tabs['integrations'] = __( 'Integrations', 'invoicing' );
-	}
+    if ( count( getpaid_get_integration_settings() ) > 0 ) {
+        $tabs['integrations'] = __( 'Integrations', 'invoicing' );
+    }
 
     $tabs['privacy']  = __( 'Privacy', 'invoicing' );
     $tabs['misc']     = __( 'Misc', 'invoicing' );
@@ -405,14 +405,14 @@ 
         ) ),
         'taxes' => apply_filters( 'wpinv_settings_sections_taxes', array(
             'main'  => __( 'Tax Settings', 'invoicing' ),
-			'rates' => __( 'Tax Rates', 'invoicing' ),
-			'vat'   => __( 'EU VAT Settings', 'invoicing' )
+            'rates' => __( 'Tax Rates', 'invoicing' ),
+            'vat'   => __( 'EU VAT Settings', 'invoicing' )
         ) ),
         'emails' => apply_filters( 'wpinv_settings_sections_emails', array(
             'main' => __( 'Email Settings', 'invoicing' ),
-		) ),
+        ) ),
 
-		'integrations' => wp_list_pluck( getpaid_get_integration_settings(), 'label', 'id' ),
+        'integrations' => wp_list_pluck( getpaid_get_integration_settings(), 'label', 'id' ),
 
         'privacy' => apply_filters( 'wpinv_settings_sections_privacy', array(
             'main' => __( 'Privacy policy', 'invoicing' ),
@@ -432,48 +432,48 @@ 
 }
 
 function wpinv_get_pages( $with_slug = false, $default_label = NULL ) {
-	$pages_options = array();
+    $pages_options = array();
 
-	if( $default_label !== NULL && $default_label !== false ) {
-		$pages_options = array( '' => $default_label ); // Blank option
-	}
+    if( $default_label !== NULL && $default_label !== false ) {
+        $pages_options = array( '' => $default_label ); // Blank option
+    }
 
-	$pages = get_pages();
-	if ( $pages ) {
-		foreach ( $pages as $page ) {
-			$title = $with_slug ? $page->post_title . ' (' . $page->post_name . ')' : $page->post_title;
+    $pages = get_pages();
+    if ( $pages ) {
+        foreach ( $pages as $page ) {
+            $title = $with_slug ? $page->post_title . ' (' . $page->post_name . ')' : $page->post_title;
             $pages_options[ $page->ID ] = $title;
-		}
-	}
+        }
+    }
 
-	return $pages_options;
+    return $pages_options;
 }
 
 function wpinv_header_callback( $args ) {
-	if ( !empty( $args['desc'] ) ) {
+    if ( !empty( $args['desc'] ) ) {
         echo $args['desc'];
     }
 }
 
 function wpinv_hidden_callback( $args ) {
 
-	$std     = isset( $args['std'] ) ? $args['std'] : '';
-	$value   = wpinv_get_option( $args['id'], $std );
+    $std     = isset( $args['std'] ) ? $args['std'] : '';
+    $value   = wpinv_get_option( $args['id'], $std );
 
-	if ( isset( $args['set_value'] ) ) {
-		$value = $args['set_value'];
-	}
+    if ( isset( $args['set_value'] ) ) {
+        $value = $args['set_value'];
+    }
 
-	if ( isset( $args['faux'] ) && true === $args['faux'] ) {
-		$args['readonly'] = true;
-		$name  = '';
-	} else {
-		$name = 'name="wpinv_settings[' . esc_attr( $args['id'] ) . ']"';
-	}
+    if ( isset( $args['faux'] ) && true === $args['faux'] ) {
+        $args['readonly'] = true;
+        $name  = '';
+    } else {
+        $name = 'name="wpinv_settings[' . esc_attr( $args['id'] ) . ']"';
+    }
 
-	$html = '<input type="hidden" id="wpinv_settings[' . wpinv_sanitize_key( $args['id'] ) . ']" ' . $name . ' value="' . esc_attr( stripslashes( $value ) ) . '" />';
+    $html = '<input type="hidden" id="wpinv_settings[' . wpinv_sanitize_key( $args['id'] ) . ']" ' . $name . ' value="' . esc_attr( stripslashes( $value ) ) . '" />';
     
-	echo $html;
+    echo $html;
 }
 
 /**
@@ -481,12 +481,12 @@ 
  */
 function wpinv_checkbox_callback( $args ) {
 
-	$std = isset( $args['std'] ) ? $args['std'] : '';
-	$std = wpinv_get_option( $args['id'], $std );
-	$id  = esc_attr( $args['id'] );
+    $std = isset( $args['std'] ) ? $args['std'] : '';
+    $std = wpinv_get_option( $args['id'], $std );
+    $id  = esc_attr( $args['id'] );
 
-	getpaid_hidden_field( "wpinv_settings[$id]", '0' );
-	?>
+    getpaid_hidden_field( "wpinv_settings[$id]", '0' );
+    ?>
 		<fieldset>
 			<label>
 				<input id="wpinv-settings-<?php echo $id; ?>" name="wpinv_settings[<?php echo $id; ?>]" <?php checked( empty( $std ), false ); ?> value="1" type="checkbox">
@@ -498,75 +498,75 @@ 
 
 function wpinv_multicheck_callback( $args ) {
 
-	$sanitize_id = wpinv_sanitize_key( $args['id'] );
-	$class = !empty( $args['class'] ) ? ' ' . esc_attr( $args['class'] ) : '';
+    $sanitize_id = wpinv_sanitize_key( $args['id'] );
+    $class = !empty( $args['class'] ) ? ' ' . esc_attr( $args['class'] ) : '';
 
-	if ( ! empty( $args['options'] ) ) {
+    if ( ! empty( $args['options'] ) ) {
 
-		$std     = isset( $args['std'] ) ? $args['std'] : array();
-		$value   = wpinv_get_option( $args['id'], $std );
+        $std     = isset( $args['std'] ) ? $args['std'] : array();
+        $value   = wpinv_get_option( $args['id'], $std );
 
-		echo '<div class="wpi-mcheck-rows wpi-mcheck-' . $sanitize_id . $class . '">';
+        echo '<div class="wpi-mcheck-rows wpi-mcheck-' . $sanitize_id . $class . '">';
         foreach( $args['options'] as $key => $option ):
-			$sanitize_key = wpinv_sanitize_key( $key );
-			if ( in_array( $sanitize_key, $value ) ) { 
-				$enabled = $sanitize_key;
-			} else { 
-				$enabled = NULL; 
-			}
-			echo '<div class="wpi-mcheck-row"><input name="wpinv_settings[' . $sanitize_id . '][' . $sanitize_key . ']" id="wpinv_settings[' . $sanitize_id . '][' . $sanitize_key . ']" type="checkbox" value="' . esc_attr( $sanitize_key ) . '" ' . checked( $sanitize_key, $enabled, false ) . '/>&nbsp;';
-			echo '<label for="wpinv_settings[' . $sanitize_id . '][' . $sanitize_key . ']">' . wp_kses_post( $option ) . '</label></div>';
-		endforeach;
-		echo '</div>';
-		echo '<p class="description">' . $args['desc'] . '</p>';
-	}
+            $sanitize_key = wpinv_sanitize_key( $key );
+            if ( in_array( $sanitize_key, $value ) ) { 
+                $enabled = $sanitize_key;
+            } else { 
+                $enabled = NULL; 
+            }
+            echo '<div class="wpi-mcheck-row"><input name="wpinv_settings[' . $sanitize_id . '][' . $sanitize_key . ']" id="wpinv_settings[' . $sanitize_id . '][' . $sanitize_key . ']" type="checkbox" value="' . esc_attr( $sanitize_key ) . '" ' . checked( $sanitize_key, $enabled, false ) . '/>&nbsp;';
+            echo '<label for="wpinv_settings[' . $sanitize_id . '][' . $sanitize_key . ']">' . wp_kses_post( $option ) . '</label></div>';
+        endforeach;
+        echo '</div>';
+        echo '<p class="description">' . $args['desc'] . '</p>';
+    }
 }
 
 function wpinv_payment_icons_callback( $args ) {
     
     $sanitize_id = wpinv_sanitize_key( $args['id'] );
-	$value   = wpinv_get_option( $args['id'], false);
+    $value   = wpinv_get_option( $args['id'], false);
 
-	if ( ! empty( $args['options'] ) ) {
-		foreach( $args['options'] as $key => $option ) {
+    if ( ! empty( $args['options'] ) ) {
+        foreach( $args['options'] as $key => $option ) {
             $sanitize_key = wpinv_sanitize_key( $key );
             
-			if( empty( $value ) ) {
-				$enabled = $option;
-			} else {
-				$enabled = NULL;
-			}
-
-			echo '<label for="wpinv_settings[' . $sanitize_id . '][' . $sanitize_key . ']" style="margin-right:10px;line-height:16px;height:16px;display:inline-block;">';
-
-				echo '<input name="wpinv_settings[' . $sanitize_id . '][' . $sanitize_key . ']" id="wpinv_settings[' . $sanitize_id . '][' . $sanitize_key . ']" type="checkbox" value="' . esc_attr( $option ) . '" ' . checked( $option, $enabled, false ) . '/>&nbsp;';
-
-				if ( wpinv_string_is_image_url( $key ) ) {
-					echo '<img class="payment-icon" src="' . esc_url( $key ) . '" style="width:32px;height:24px;position:relative;top:6px;margin-right:5px;"/>';
-				} else {
-					$card = strtolower( str_replace( ' ', '', $option ) );
-
-					if ( has_filter( 'wpinv_accepted_payment_' . $card . '_image' ) ) {
-						$image = apply_filters( 'wpinv_accepted_payment_' . $card . '_image', '' );
-					} else {
-						$image       = wpinv_locate_template( 'images' . DIRECTORY_SEPARATOR . 'icons' . DIRECTORY_SEPARATOR . $card . '.gif', false );
-						$content_dir = WP_CONTENT_DIR;
-
-						if ( function_exists( 'wp_normalize_path' ) ) {
-							// Replaces backslashes with forward slashes for Windows systems
-							$image = wp_normalize_path( $image );
-							$content_dir = wp_normalize_path( $content_dir );
-						}
-
-						$image = str_replace( $content_dir, content_url(), $image );
-					}
-
-					echo '<img class="payment-icon" src="' . esc_url( $image ) . '" style="width:32px;height:24px;position:relative;top:6px;margin-right:5px;"/>';
-				}
-			echo $option . '</label>';
-		}
-		echo '<p class="description" style="margin-top:16px;">' . wp_kses_post( $args['desc'] ) . '</p>';
-	}
+            if( empty( $value ) ) {
+                $enabled = $option;
+            } else {
+                $enabled = NULL;
+            }
+
+            echo '<label for="wpinv_settings[' . $sanitize_id . '][' . $sanitize_key . ']" style="margin-right:10px;line-height:16px;height:16px;display:inline-block;">';
+
+                echo '<input name="wpinv_settings[' . $sanitize_id . '][' . $sanitize_key . ']" id="wpinv_settings[' . $sanitize_id . '][' . $sanitize_key . ']" type="checkbox" value="' . esc_attr( $option ) . '" ' . checked( $option, $enabled, false ) . '/>&nbsp;';
+
+                if ( wpinv_string_is_image_url( $key ) ) {
+                    echo '<img class="payment-icon" src="' . esc_url( $key ) . '" style="width:32px;height:24px;position:relative;top:6px;margin-right:5px;"/>';
+                } else {
+                    $card = strtolower( str_replace( ' ', '', $option ) );
+
+                    if ( has_filter( 'wpinv_accepted_payment_' . $card . '_image' ) ) {
+                        $image = apply_filters( 'wpinv_accepted_payment_' . $card . '_image', '' );
+                    } else {
+                        $image       = wpinv_locate_template( 'images' . DIRECTORY_SEPARATOR . 'icons' . DIRECTORY_SEPARATOR . $card . '.gif', false );
+                        $content_dir = WP_CONTENT_DIR;
+
+                        if ( function_exists( 'wp_normalize_path' ) ) {
+                            // Replaces backslashes with forward slashes for Windows systems
+                            $image = wp_normalize_path( $image );
+                            $content_dir = wp_normalize_path( $content_dir );
+                        }
+
+                        $image = str_replace( $content_dir, content_url(), $image );
+                    }
+
+                    echo '<img class="payment-icon" src="' . esc_url( $image ) . '" style="width:32px;height:24px;position:relative;top:6px;margin-right:5px;"/>';
+                }
+            echo $option . '</label>';
+        }
+        echo '<p class="description" style="margin-top:16px;">' . wp_kses_post( $args['desc'] ) . '</p>';
+    }
 }
 
 /**
@@ -574,9 +574,9 @@ 
  */
 function wpinv_radio_callback( $args ) {
 
-	$std = isset( $args['std'] ) ? $args['std'] : '';
-	$std = wpinv_get_option( $args['id'], $std );
-	?>
+    $std = isset( $args['std'] ) ? $args['std'] : '';
+    $std = wpinv_get_option( $args['id'], $std );
+    ?>
 		<fieldset>
 			<ul id="wpinv-settings-<?php echo esc_attr( $args['id'] ); ?>" style="margin-top: 0;">
 				<?php foreach( $args['options'] as $key => $option ) : ?>
@@ -590,7 +590,7 @@ 
 			</ul>
 		</fieldset>
 	<?php
-	getpaid_settings_description_callback( $args );
+    getpaid_settings_description_callback( $args );
 }
 
 /**
@@ -598,10 +598,10 @@ 
  */
 function getpaid_settings_description_callback( $args ) {
 
-	if ( ! empty( $args['desc'] ) ) {
-		$description = wp_kses_post( $args['desc'] );
-		echo "<p class='description'>$description</p>";
-	}
+    if ( ! empty( $args['desc'] ) ) {
+        $description = wp_kses_post( $args['desc'] );
+        echo "<p class='description'>$description</p>";
+    }
 
 }
 
@@ -610,7 +610,7 @@ 
  */
 function wpinv_gateways_callback() {
 
-	?>
+    ?>
 		</td>
 	</tr>
 	<tr class="bsui">
@@ -624,22 +624,22 @@ 
     
     $sanitize_id = wpinv_sanitize_key( $args['id'] );
     $class = !empty( $args['class'] ) ? ' ' . esc_attr( $args['class'] ) : '';
-	$std     = isset( $args['std'] ) ? $args['std'] : '';
-	$value   = wpinv_get_option( $args['id'], $std );
+    $std     = isset( $args['std'] ) ? $args['std'] : '';
+    $value   = wpinv_get_option( $args['id'], $std );
 
-	echo '<select name="wpinv_settings[' . $sanitize_id . ']"" id="wpinv_settings[' . $sanitize_id . ']" class="'.$class.'" >';
+    echo '<select name="wpinv_settings[' . $sanitize_id . ']"" id="wpinv_settings[' . $sanitize_id . ']" class="'.$class.'" >';
 
-	foreach ( $args['options'] as $key => $option ) :
-		if ( isset( $args['selected'] ) && $args['selected'] !== null && $args['selected'] !== false ) {
+    foreach ( $args['options'] as $key => $option ) :
+        if ( isset( $args['selected'] ) && $args['selected'] !== null && $args['selected'] !== false ) {
             $selected = selected( $key, $args['selected'], false );
         } else {
             $selected = selected( $key, $value, false );
         }
-		echo '<option value="' . wpinv_sanitize_key( $key ) . '"' . $selected . '>' . esc_html( $option['admin_label'] ) . '</option>';
-	endforeach;
+        echo '<option value="' . wpinv_sanitize_key( $key ) . '"' . $selected . '>' . esc_html( $option['admin_label'] ) . '</option>';
+    endforeach;
 
-	echo '</select>';
-	echo '<label for="wpinv_settings[' . $sanitize_id . ']"> '  . wp_kses_post( $args['desc'] ) . '</label>';
+    echo '</select>';
+    echo '<label for="wpinv_settings[' . $sanitize_id . ']"> '  . wp_kses_post( $args['desc'] ) . '</label>';
 }
 
 /**
@@ -650,29 +650,29 @@ 
  */
 function wpinv_settings_attrs_helper( $args ) {
 
-	$value        = isset( $args['std'] ) ? $args['std'] : '';
-	$id           = esc_attr( $args['id'] );
-	$placeholder  = esc_attr( $args['placeholder'] );
+    $value        = isset( $args['std'] ) ? $args['std'] : '';
+    $id           = esc_attr( $args['id'] );
+    $placeholder  = esc_attr( $args['placeholder'] );
 
-	if ( ! empty( $args['faux'] ) ) {
-		$args['readonly'] = true;
-		$name             = '';
-	} else {
-		$value  = wpinv_get_option( $args['id'], $value );
-		$name   = "wpinv_settings[$id]";
-	}
+    if ( ! empty( $args['faux'] ) ) {
+        $args['readonly'] = true;
+        $name             = '';
+    } else {
+        $value  = wpinv_get_option( $args['id'], $value );
+        $name   = "wpinv_settings[$id]";
+    }
 
-	$value    = is_scalar( $value ) ? esc_attr( $value ) : '';
-	$class    = esc_attr( $args['class'] );
-	$style    = esc_attr( $args['style'] );
-	$readonly = empty( $args['readonly'] ) ? '' : 'readonly onclick="this.select()"';
+    $value    = is_scalar( $value ) ? esc_attr( $value ) : '';
+    $class    = esc_attr( $args['class'] );
+    $style    = esc_attr( $args['style'] );
+    $readonly = empty( $args['readonly'] ) ? '' : 'readonly onclick="this.select()"';
 
-	$onchange = '';
+    $onchange = '';
     if ( ! empty( $args['onchange'] ) ) {
         $onchange = ' onchange="' . esc_attr( $args['onchange'] ) . '"';
-	}
+    }
 
-	return "name='$name' id='wpinv-settings-$id' style='$style' value='$value' class='$class' placeholder='$placeholder' data-placeholder='$placeholder' $onchange $readonly";
+    return "name='$name' id='wpinv-settings-$id' style='$style' value='$value' class='$class' placeholder='$placeholder' data-placeholder='$placeholder' $onchange $readonly";
 }
 
 /**
@@ -680,11 +680,11 @@ 
  */
 function wpinv_text_callback( $args ) {
 
-	$desc = wp_kses_post( $args['desc'] );
-	$desc = empty( $desc ) ? '' : "<p class='description'>$desc</p>";
-	$attr = wpinv_settings_attrs_helper( $args );
+    $desc = wp_kses_post( $args['desc'] );
+    $desc = empty( $desc ) ? '' : "<p class='description'>$desc</p>";
+    $attr = wpinv_settings_attrs_helper( $args );
 
-	?>
+    ?>
 		<label style="width: 100%;">
 			<input type="text" <?php echo $attr; ?>>
 			<?php echo $desc; ?>
@@ -698,14 +698,14 @@ 
  */
 function wpinv_number_callback( $args ) {
 
-	$desc = wp_kses_post( $args['desc'] );
-	$desc = empty( $desc ) ? '' : "<p class='description'>$desc</p>";
-	$attr = wpinv_settings_attrs_helper( $args );
-	$max  = intval( $args['max'] );
-	$min  = intval( $args['min'] );
-	$step = floatval( $args['step'] );
+    $desc = wp_kses_post( $args['desc'] );
+    $desc = empty( $desc ) ? '' : "<p class='description'>$desc</p>";
+    $attr = wpinv_settings_attrs_helper( $args );
+    $max  = intval( $args['max'] );
+    $min  = intval( $args['min'] );
+    $step = floatval( $args['step'] );
 
-	?>
+    ?>
 		<label style="width: 100%;">
 			<input type="number" step="<?php echo $step; ?>" max="<?php echo $max; ?>" min="<?php echo $min; ?>" <?php echo $attr; ?>>
 			<?php echo $desc; ?>
@@ -717,36 +717,36 @@ 
 function wpinv_textarea_callback( $args ) {
     
     $sanitize_id = wpinv_sanitize_key( $args['id'] );
-	$std     = isset( $args['std'] ) ? $args['std'] : '';
-	$value   = wpinv_get_option( $args['id'], $std );
+    $std     = isset( $args['std'] ) ? $args['std'] : '';
+    $value   = wpinv_get_option( $args['id'], $std );
 
     $size = ( isset( $args['size'] ) && ! is_null( $args['size'] ) ) ? $args['size'] : 'regular';
     $class = ( isset( $args['class'] ) && ! is_null( $args['class'] ) ) ? $args['class'] : 'large-text';
 
-	$html = '<textarea class="' . sanitize_html_class( $class ) . ' txtarea-' . sanitize_html_class( $size ) . ' wpi-' . esc_attr( sanitize_html_class( $sanitize_id ) ) . ' " cols="' . $args['cols'] . '" rows="' . $args['rows'] . '" id="wpinv_settings[' . $sanitize_id . ']" name="wpinv_settings[' . esc_attr( $args['id'] ) . ']">' . esc_textarea( stripslashes( $value ) ) . '</textarea>';
-	$html .= '<br /><label for="wpinv_settings[' . $sanitize_id . ']"> '  . wp_kses_post( $args['desc'] ) . '</label>';
+    $html = '<textarea class="' . sanitize_html_class( $class ) . ' txtarea-' . sanitize_html_class( $size ) . ' wpi-' . esc_attr( sanitize_html_class( $sanitize_id ) ) . ' " cols="' . $args['cols'] . '" rows="' . $args['rows'] . '" id="wpinv_settings[' . $sanitize_id . ']" name="wpinv_settings[' . esc_attr( $args['id'] ) . ']">' . esc_textarea( stripslashes( $value ) ) . '</textarea>';
+    $html .= '<br /><label for="wpinv_settings[' . $sanitize_id . ']"> '  . wp_kses_post( $args['desc'] ) . '</label>';
 
-	echo $html;
+    echo $html;
 }
 
 function wpinv_password_callback( $args ) {
     
     $sanitize_id = wpinv_sanitize_key( $args['id'] );
-	$std     = isset( $args['std'] ) ? $args['std'] : '';
-	$value   = wpinv_get_option( $args['id'], $std );
+    $std     = isset( $args['std'] ) ? $args['std'] : '';
+    $value   = wpinv_get_option( $args['id'], $std );
 
-	$size = ( isset( $args['size'] ) && ! is_null( $args['size'] ) ) ? $args['size'] : 'regular';
-	$html = '<input type="password" class="' . sanitize_html_class( $size ) . '-text" id="wpinv_settings[' . $sanitize_id . ']" name="wpinv_settings[' . esc_attr( $args['id'] ) . ']" value="' . esc_attr( $value ) . '"/>';
-	$html .= '<label for="wpinv_settings[' . $sanitize_id . ']"> ' . wp_kses_post( $args['desc'] ) . '</label>';
+    $size = ( isset( $args['size'] ) && ! is_null( $args['size'] ) ) ? $args['size'] : 'regular';
+    $html = '<input type="password" class="' . sanitize_html_class( $size ) . '-text" id="wpinv_settings[' . $sanitize_id . ']" name="wpinv_settings[' . esc_attr( $args['id'] ) . ']" value="' . esc_attr( $value ) . '"/>';
+    $html .= '<label for="wpinv_settings[' . $sanitize_id . ']"> ' . wp_kses_post( $args['desc'] ) . '</label>';
 
-	echo $html;
+    echo $html;
 }
 
 function wpinv_missing_callback($args) {
-	printf(
-		__( 'The callback function used for the %s setting is missing.', 'invoicing' ),
-		'<strong>' . $args['id'] . '</strong>'
-	);
+    printf(
+        __( 'The callback function used for the %s setting is missing.', 'invoicing' ),
+        '<strong>' . $args['id'] . '</strong>'
+    );
 }
 
 /**
@@ -754,14 +754,14 @@ 
  */
 function wpinv_select_callback( $args ) {
 
-	$desc   = wp_kses_post( $args['desc'] );
-	$desc   = empty( $desc ) ? '' : "<p class='description'>$desc</p>";
-	$attr   = wpinv_settings_attrs_helper( $args );
-	$value  = isset( $args['std'] ) ? $args['std'] : '';
-	$value  = wpinv_get_option( $args['id'], $value );
-	$rand   = uniqid( 'random_id' );
+    $desc   = wp_kses_post( $args['desc'] );
+    $desc   = empty( $desc ) ? '' : "<p class='description'>$desc</p>";
+    $attr   = wpinv_settings_attrs_helper( $args );
+    $value  = isset( $args['std'] ) ? $args['std'] : '';
+    $value  = wpinv_get_option( $args['id'], $value );
+    $rand   = uniqid( 'random_id' );
 
-	?>
+    ?>
 		<label style="width: 100%;">
 			<select <?php echo $attr; ?>>
 				<?php foreach ( $args['options'] as $option => $name ) : ?>
@@ -794,104 +794,104 @@ 
 function wpinv_color_select_callback( $args ) {
     
     $sanitize_id = wpinv_sanitize_key( $args['id'] );
-	$std     = isset( $args['std'] ) ? $args['std'] : '';
-	$value   = wpinv_get_option( $args['id'], $std );
+    $std     = isset( $args['std'] ) ? $args['std'] : '';
+    $value   = wpinv_get_option( $args['id'], $std );
 
-	$html = '<select id="wpinv_settings[' . $sanitize_id . ']" name="wpinv_settings[' . esc_attr( $args['id'] ) . ']"/>';
+    $html = '<select id="wpinv_settings[' . $sanitize_id . ']" name="wpinv_settings[' . esc_attr( $args['id'] ) . ']"/>';
 
-	foreach ( $args['options'] as $option => $color ) {
-		$selected = selected( $option, $value, false );
-		$html .= '<option value="' . esc_attr( $option ) . '" ' . $selected . '>' . esc_html( $color['label'] ) . '</option>';
-	}
+    foreach ( $args['options'] as $option => $color ) {
+        $selected = selected( $option, $value, false );
+        $html .= '<option value="' . esc_attr( $option ) . '" ' . $selected . '>' . esc_html( $color['label'] ) . '</option>';
+    }
 
-	$html .= '</select>';
-	$html .= '<label for="wpinv_settings[' . $sanitize_id . ']"> '  . wp_kses_post( $args['desc'] ) . '</label>';
+    $html .= '</select>';
+    $html .= '<label for="wpinv_settings[' . $sanitize_id . ']"> '  . wp_kses_post( $args['desc'] ) . '</label>';
 
-	echo $html;
+    echo $html;
 }
 
 function wpinv_rich_editor_callback( $args ) {
-	global $wp_version;
+    global $wp_version;
     
     $sanitize_id = wpinv_sanitize_key( $args['id'] );
 
-	$std     = isset( $args['std'] ) ? $args['std'] : '';
-	$value   = wpinv_get_option( $args['id'], $std );
+    $std     = isset( $args['std'] ) ? $args['std'] : '';
+    $value   = wpinv_get_option( $args['id'], $std );
 	
-	if ( ! empty( $args['allow_blank'] ) && empty( $value ) ) {
-		$value = $std;
-	}
+    if ( ! empty( $args['allow_blank'] ) && empty( $value ) ) {
+        $value = $std;
+    }
 
-	$rows = isset( $args['size'] ) ? $args['size'] : 20;
+    $rows = isset( $args['size'] ) ? $args['size'] : 20;
 
-	$html = '<div class="getpaid-settings-editor-input">';
-	if ( $wp_version >= 3.3 && function_exists( 'wp_editor' ) ) {
-		ob_start();
-		wp_editor( stripslashes( $value ), 'wpinv_settings_' . esc_attr( $args['id'] ), array( 'textarea_name' => 'wpinv_settings[' . esc_attr( $args['id'] ) . ']', 'textarea_rows' => absint( $rows ), 'media_buttons' => false ) );
-		$html .= ob_get_clean();
-	} else {
-		$html .= '<textarea class="large-text" rows="10" id="wpinv_settings[' . $sanitize_id . ']" name="wpinv_settings[' . esc_attr( $args['id'] ) . ']" class="wpi-' . esc_attr( sanitize_html_class( $args['id'] ) ) . '">' . esc_textarea( stripslashes( $value ) ) . '</textarea>';
-	}
+    $html = '<div class="getpaid-settings-editor-input">';
+    if ( $wp_version >= 3.3 && function_exists( 'wp_editor' ) ) {
+        ob_start();
+        wp_editor( stripslashes( $value ), 'wpinv_settings_' . esc_attr( $args['id'] ), array( 'textarea_name' => 'wpinv_settings[' . esc_attr( $args['id'] ) . ']', 'textarea_rows' => absint( $rows ), 'media_buttons' => false ) );
+        $html .= ob_get_clean();
+    } else {
+        $html .= '<textarea class="large-text" rows="10" id="wpinv_settings[' . $sanitize_id . ']" name="wpinv_settings[' . esc_attr( $args['id'] ) . ']" class="wpi-' . esc_attr( sanitize_html_class( $args['id'] ) ) . '">' . esc_textarea( stripslashes( $value ) ) . '</textarea>';
+    }
 
-	$html .= '</div><br/><label for="wpinv_settings[' . $sanitize_id . ']"> ' . wp_kses_post( $args['desc'] ) . '</label>';
+    $html .= '</div><br/><label for="wpinv_settings[' . $sanitize_id . ']"> ' . wp_kses_post( $args['desc'] ) . '</label>';
 
-	echo $html;
+    echo $html;
 }
 
 function wpinv_upload_callback( $args ) {
     
     $sanitize_id = wpinv_sanitize_key( $args['id'] );
 
-	$std     = isset( $args['std'] ) ? $args['std'] : '';
-	$value   = wpinv_get_option( $args['id'], $std );
+    $std     = isset( $args['std'] ) ? $args['std'] : '';
+    $value   = wpinv_get_option( $args['id'], $std );
 
-	$size = ( isset( $args['size'] ) && ! is_null( $args['size'] ) ) ? $args['size'] : 'regular';
-	$html = '<input type="text" class="' . sanitize_html_class( $size ) . '-text" id="wpinv_settings[' . $sanitize_id . ']" name="wpinv_settings[' . esc_attr( $args['id'] ) . ']" value="' . esc_attr( stripslashes( $value ) ) . '"/>';
-	$html .= '<span>&nbsp;<input type="button" class="wpinv_settings_upload_button button-secondary" value="' . __( 'Upload File', 'invoicing' ) . '"/></span>';
-	$html .= '<label for="wpinv_settings[' . $sanitize_id . ']"> ' . wp_kses_post( $args['desc'] ) . '</label>';
+    $size = ( isset( $args['size'] ) && ! is_null( $args['size'] ) ) ? $args['size'] : 'regular';
+    $html = '<input type="text" class="' . sanitize_html_class( $size ) . '-text" id="wpinv_settings[' . $sanitize_id . ']" name="wpinv_settings[' . esc_attr( $args['id'] ) . ']" value="' . esc_attr( stripslashes( $value ) ) . '"/>';
+    $html .= '<span>&nbsp;<input type="button" class="wpinv_settings_upload_button button-secondary" value="' . __( 'Upload File', 'invoicing' ) . '"/></span>';
+    $html .= '<label for="wpinv_settings[' . $sanitize_id . ']"> ' . wp_kses_post( $args['desc'] ) . '</label>';
 
-	echo $html;
+    echo $html;
 }
 
 function wpinv_color_callback( $args ) {
 
-	$std         = isset( $args['std'] ) ? $args['std'] : '';
-	$value       = wpinv_get_option( $args['id'], $std );
+    $std         = isset( $args['std'] ) ? $args['std'] : '';
+    $value       = wpinv_get_option( $args['id'], $std );
     $sanitize_id = wpinv_sanitize_key( $args['id'] );
 
-	$html = '<input type="text" class="wpinv-color-picker" id="wpinv_settings[' . $sanitize_id . ']" name="wpinv_settings[' . esc_attr( $args['id'] ) . ']" value="' . esc_attr( $value ) . '" data-default-color="' . esc_attr( $std ) . '" />';
-	$html .= '<label for="wpinv_settings[' . $sanitize_id . ']"> '  . wp_kses_post( $args['desc'] ) . '</label>';
+    $html = '<input type="text" class="wpinv-color-picker" id="wpinv_settings[' . $sanitize_id . ']" name="wpinv_settings[' . esc_attr( $args['id'] ) . ']" value="' . esc_attr( $value ) . '" data-default-color="' . esc_attr( $std ) . '" />';
+    $html .= '<label for="wpinv_settings[' . $sanitize_id . ']"> '  . wp_kses_post( $args['desc'] ) . '</label>';
 
-	echo $html;
+    echo $html;
 }
 
 function wpinv_country_states_callback($args) {
 
-	$std     = isset( $args['std'] ) ? $args['std'] : '';
-	$value   = wpinv_get_option( $args['id'], $std );
+    $std     = isset( $args['std'] ) ? $args['std'] : '';
+    $value   = wpinv_get_option( $args['id'], $std );
 
     $sanitize_id = wpinv_sanitize_key( $args['id'] );
 
-	if ( isset( $args['placeholder'] ) ) {
-		$placeholder = $args['placeholder'];
-	} else {
-		$placeholder = '';
-	}
+    if ( isset( $args['placeholder'] ) ) {
+        $placeholder = $args['placeholder'];
+    } else {
+        $placeholder = '';
+    }
 
-	$states = wpinv_get_country_states();
+    $states = wpinv_get_country_states();
 
-	$class = empty( $states ) ? ' class="wpinv-no-states"' : ' class="wpi_select2"';
-	$html = '<select id="wpinv_settings[' . $sanitize_id . ']" name="wpinv_settings[' . esc_attr( $args['id'] ) . ']"' . $class . 'data-placeholder="' . esc_html( $placeholder ) . '"/>';
+    $class = empty( $states ) ? ' class="wpinv-no-states"' : ' class="wpi_select2"';
+    $html = '<select id="wpinv_settings[' . $sanitize_id . ']" name="wpinv_settings[' . esc_attr( $args['id'] ) . ']"' . $class . 'data-placeholder="' . esc_html( $placeholder ) . '"/>';
 
-	foreach ( $states as $option => $name ) {
-		$selected = selected( $option, $value, false );
-		$html .= '<option value="' . esc_attr( $option ) . '" ' . $selected . '>' . esc_html( $name ) . '</option>';
-	}
+    foreach ( $states as $option => $name ) {
+        $selected = selected( $option, $value, false );
+        $html .= '<option value="' . esc_attr( $option ) . '" ' . $selected . '>' . esc_html( $name ) . '</option>';
+    }
 
-	$html .= '</select>';
-	$html .= '<label for="wpinv_settings[' . $sanitize_id . ']"> '  . wp_kses_post( $args['desc'] ) . '</label>';
+    $html .= '</select>';
+    $html .= '<label for="wpinv_settings[' . $sanitize_id . ']"> '  . wp_kses_post( $args['desc'] ) . '</label>';
 
-	echo $html;
+    echo $html;
 }
 
 /**
@@ -899,7 +899,7 @@ 
  */
 function wpinv_tax_rates_callback() {
 	
-	?>
+    ?>
 		</td>
 	</tr>
 	<tr class="bsui">
@@ -914,17 +914,17 @@ 
  * Displays a tax rate' edit row.
  */
 function wpinv_tax_rate_callback( $tax_rate, $key, $echo = true ) {
-	ob_start();
+    ob_start();
 
-	$key                      = sanitize_key( $key );
-	$tax_rate['reduced_rate'] = empty( $tax_rate['reduced_rate'] ) ? 0 : $tax_rate['reduced_rate'];
-	include plugin_dir_path( __FILE__ ) . 'views/html-tax-rate-edit.php';
+    $key                      = sanitize_key( $key );
+    $tax_rate['reduced_rate'] = empty( $tax_rate['reduced_rate'] ) ? 0 : $tax_rate['reduced_rate'];
+    include plugin_dir_path( __FILE__ ) . 'views/html-tax-rate-edit.php';
 
-	if ( $echo ) {
-		echo ob_get_clean();
-	} else {
-		return ob_get_clean(); 
-	}
+    if ( $echo ) {
+        echo ob_get_clean();
+    } else {
+        return ob_get_clean(); 
+    }
 
 }
 
@@ -952,14 +952,14 @@ 
                 </td>
                 <td>
 					<a href="<?php
-						echo esc_url(
-							wp_nonce_url(
-								add_query_arg( 'getpaid-admin-action', 'create_missing_pages' ),
-								'getpaid-nonce',
-								'getpaid-nonce'
-							)
-						);
-					?>" class="button button-primary"><?php _e('Run', 'invoicing');?></a>
+                        echo esc_url(
+                            wp_nonce_url(
+                                add_query_arg( 'getpaid-admin-action', 'create_missing_pages' ),
+                                'getpaid-nonce',
+                                'getpaid-nonce'
+                            )
+                        );
+                    ?>" class="button button-primary"><?php _e('Run', 'invoicing');?></a>
                 </td>
             </tr>
 			<tr>
@@ -969,14 +969,14 @@ 
                 </td>
                 <td>
 					<a href="<?php
-						echo esc_url(
-							wp_nonce_url(
-								add_query_arg( 'getpaid-admin-action', 'create_missing_tables' ),
-								'getpaid-nonce',
-								'getpaid-nonce'
-							)
-						);
-					?>" class="button button-primary"><?php _e('Run', 'invoicing');?></a>
+                        echo esc_url(
+                            wp_nonce_url(
+                                add_query_arg( 'getpaid-admin-action', 'create_missing_tables' ),
+                                'getpaid-nonce',
+                                'getpaid-nonce'
+                            )
+                        );
+                    ?>" class="button button-primary"><?php _e('Run', 'invoicing');?></a>
                 </td>
             </tr>
 			<tr>
@@ -986,14 +986,14 @@ 
                 </td>
                 <td>
 					<a href="<?php
-						echo esc_url(
-							wp_nonce_url(
-								add_query_arg( 'getpaid-admin-action', 'migrate_old_invoices' ),
-								'getpaid-nonce',
-								'getpaid-nonce'
-							)
-						);
-					?>" class="button button-primary"><?php _e('Run', 'invoicing');?></a>
+                        echo esc_url(
+                            wp_nonce_url(
+                                add_query_arg( 'getpaid-admin-action', 'migrate_old_invoices' ),
+                                'getpaid-nonce',
+                                'getpaid-nonce'
+                            )
+                        );
+                    ?>" class="button button-primary"><?php _e('Run', 'invoicing');?></a>
                 </td>
             </tr>
 
@@ -1004,14 +1004,14 @@ 
                 </td>
                 <td>
 					<a href="<?php
-						echo esc_url(
-							wp_nonce_url(
-								add_query_arg( 'getpaid-admin-action', 'recalculate_discounts' ),
-								'getpaid-nonce',
-								'getpaid-nonce'
-							)
-						);
-					?>" class="button button-primary"><?php _e( 'Run', 'invoicing' );?></a>
+                        echo esc_url(
+                            wp_nonce_url(
+                                add_query_arg( 'getpaid-admin-action', 'recalculate_discounts' ),
+                                'getpaid-nonce',
+                                'getpaid-nonce'
+                            )
+                        );
+                    ?>" class="button button-primary"><?php _e( 'Run', 'invoicing' );?></a>
                 </td>
             </tr>
 
@@ -1025,19 +1025,19 @@ 
 
 
 function wpinv_descriptive_text_callback( $args ) {
-	echo wp_kses_post( $args['desc'] );
+    echo wp_kses_post( $args['desc'] );
 }
 
 function wpinv_raw_html_callback( $args ) {
-	echo $args['desc'];
+    echo $args['desc'];
 }
 
 function wpinv_hook_callback( $args ) {
-	do_action( 'wpinv_' . $args['id'], $args );
+    do_action( 'wpinv_' . $args['id'], $args );
 }
 
 function wpinv_set_settings_cap() {
-	return wpinv_get_capability();
+    return wpinv_get_capability();
 }
 add_filter( 'option_page_capability_wpinv_settings', 'wpinv_set_settings_cap' );
 
@@ -1061,15 +1061,15 @@ 
  */
 function wpinv_get_merge_tags_help_text( $subscription = false ) {
 
-	$url  = $subscription ? 'https://gist.github.com/picocodes/3d213982d57c34edf7a46fd3f0e8583e' : 'https://gist.github.com/picocodes/43bdc4d4bbba844534b2722e2af0b58f';
-	$link = sprintf(
-		'<strong><a href="%s" target="_blank">%s</a></strong>',
-		$url,
-		esc_html__( 'View available merge tags.', 'wpinv-quotes' )
-	);
+    $url  = $subscription ? 'https://gist.github.com/picocodes/3d213982d57c34edf7a46fd3f0e8583e' : 'https://gist.github.com/picocodes/43bdc4d4bbba844534b2722e2af0b58f';
+    $link = sprintf(
+        '<strong><a href="%s" target="_blank">%s</a></strong>',
+        $url,
+        esc_html__( 'View available merge tags.', 'wpinv-quotes' )
+    );
 
-	$description = esc_html__( 'The content of the email (Merge Tags and HTML are allowed).', 'invoicing' );
+    $description = esc_html__( 'The content of the email (Merge Tags and HTML are allowed).', 'invoicing' );
 
-	return "$description $link";
+    return "$description $link";
 
 }

includes/gateways/class-getpaid-paypal-gateway.php

Indentation +353 added lines, -353 removed lines

@@ -13,96 +13,96 @@ 
 class GetPaid_Paypal_Gateway extends GetPaid_Payment_Gateway {
 
     /**
-	 * Payment method id.
-	 *
-	 * @var string
-	 */
+     * Payment method id.
+     *
+     * @var string
+     */
     public $id = 'paypal';
 
     /**
-	 * An array of features that this gateway supports.
-	 *
-	 * @var array
-	 */
+     * An array of features that this gateway supports.
+     *
+     * @var array
+     */
     protected $supports = array( 'subscription', 'sandbox', 'single_subscription_group' );
 
     /**
-	 * Payment method order.
-	 *
-	 * @var int
-	 */
+     * Payment method order.
+     *
+     * @var int
+     */
     public $order = 1;
 
     /**
-	 * Stores line items to send to PayPal.
-	 *
-	 * @var array
-	 */
+     * Stores line items to send to PayPal.
+     *
+     * @var array
+     */
     protected $line_items = array();
 
     /**
-	 * Endpoint for requests from PayPal.
-	 *
-	 * @var string
-	 */
-	protected $notify_url;
-
-	/**
-	 * Endpoint for requests to PayPal.
-	 *
-	 * @var string
-	 */
+     * Endpoint for requests from PayPal.
+     *
+     * @var string
+     */
+    protected $notify_url;
+
+    /**
+     * Endpoint for requests to PayPal.
+     *
+     * @var string
+     */
     protected $endpoint;
 
     /**
-	 * Currencies this gateway is allowed for.
-	 *
-	 * @var array
-	 */
-	public $currencies = array( 'AUD', 'BRL', 'CAD', 'MXN', 'NZD', 'HKD', 'SGD', 'USD', 'EUR', 'JPY', 'TRY', 'NOK', 'CZK', 'DKK', 'HUF', 'ILS', 'MYR', 'PHP', 'PLN', 'SEK', 'CHF', 'TWD', 'THB', 'GBP', 'RMB', 'RUB', 'INR' );
+     * Currencies this gateway is allowed for.
+     *
+     * @var array
+     */
+    public $currencies = array( 'AUD', 'BRL', 'CAD', 'MXN', 'NZD', 'HKD', 'SGD', 'USD', 'EUR', 'JPY', 'TRY', 'NOK', 'CZK', 'DKK', 'HUF', 'ILS', 'MYR', 'PHP', 'PLN', 'SEK', 'CHF', 'TWD', 'THB', 'GBP', 'RMB', 'RUB', 'INR' );
 
     /**
-	 * URL to view a transaction.
-	 *
-	 * @var string
-	 */
+     * URL to view a transaction.
+     *
+     * @var string
+     */
     public $view_transaction_url = 'https://www.{sandbox}paypal.com/activity/payment/%s';
 
     /**
-	 * URL to view a subscription.
-	 *
-	 * @var string
-	 */
-	public $view_subscription_url = 'https://www.{sandbox}paypal.com/cgi-bin/webscr?cmd=_profile-recurring-payments&encrypted_profile_id=%s';
+     * URL to view a subscription.
+     *
+     * @var string
+     */
+    public $view_subscription_url = 'https://www.{sandbox}paypal.com/cgi-bin/webscr?cmd=_profile-recurring-payments&encrypted_profile_id=%s';
 
     /**
-	 * Class constructor.
-	 */
-	public function __construct() {
+     * Class constructor.
+     */
+    public function __construct() {
 
         $this->title                = __( 'PayPal Standard', 'invoicing' );
         $this->method_title         = __( 'PayPal Standard', 'invoicing' );
         $this->checkout_button_text = __( 'Proceed to PayPal', 'invoicing' );
         $this->notify_url           = wpinv_get_ipn_url( $this->id );
 
-		add_filter( 'getpaid_paypal_args', array( $this, 'process_subscription' ), 10, 2 );
+        add_filter( 'getpaid_paypal_args', array( $this, 'process_subscription' ), 10, 2 );
         add_filter( 'getpaid_paypal_sandbox_notice', array( $this, 'sandbox_notice' ) );
-		add_filter( 'getpaid_get_paypal_connect_url', array( $this, 'maybe_get_connect_url' ), 10, 2 );
-		add_action( 'getpaid_authenticated_admin_action_connect_paypal', array( $this, 'connect_paypal' ) );
+        add_filter( 'getpaid_get_paypal_connect_url', array( $this, 'maybe_get_connect_url' ), 10, 2 );
+        add_action( 'getpaid_authenticated_admin_action_connect_paypal', array( $this, 'connect_paypal' ) );
 
         parent::__construct();
     }
 
     /**
-	 * Process Payment.
-	 *
-	 *
-	 * @param WPInv_Invoice $invoice Invoice.
-	 * @param array $submission_data Posted checkout fields.
-	 * @param GetPaid_Payment_Form_Submission $submission Checkout submission.
-	 * @return array
-	 */
-	public function process_payment( $invoice, $submission_data, $submission ) {
+     * Process Payment.
+     *
+     *
+     * @param WPInv_Invoice $invoice Invoice.
+     * @param array $submission_data Posted checkout fields.
+     * @param GetPaid_Payment_Form_Submission $submission Checkout submission.
+     * @return array
+     */
+    public function process_payment( $invoice, $submission_data, $submission ) {
 
         // Get redirect url.
         $paypal_redirect = $this->get_request_url( $invoice );
@@ -125,15 +125,15 @@ 
     }
 
     /**
-	 * Get the PayPal request URL for an invoice.
-	 *
-	 * @param  WPInv_Invoice $invoice Invoice object.
-	 * @return string
-	 */
-	public function get_request_url( $invoice ) {
+     * Get the PayPal request URL for an invoice.
+     *
+     * @param  WPInv_Invoice $invoice Invoice object.
+     * @return string
+     */
+    public function get_request_url( $invoice ) {
 
         // Endpoint for this request
-		$this->endpoint    = $this->is_sandbox( $invoice ) ? 'https://www.sandbox.paypal.com/cgi-bin/webscr?test_ipn=1&' : 'https://www.paypal.com/cgi-bin/webscr?';
+        $this->endpoint    = $this->is_sandbox( $invoice ) ? 'https://www.sandbox.paypal.com/cgi-bin/webscr?test_ipn=1&' : 'https://www.paypal.com/cgi-bin/webscr?';
 
         // Retrieve paypal args.
         $paypal_args       = map_deep( $this->get_paypal_args( $invoice ), 'urlencode' );
@@ -146,44 +146,44 @@ 
 
         return add_query_arg( $paypal_args, $this->endpoint );
 
-	}
+    }
 
     /**
-	 * Get PayPal Args for passing to PP.
-	 *
-	 * @param  WPInv_Invoice $invoice Invoice object.
-	 * @return array
-	 */
-	protected function get_paypal_args( $invoice ) {
+     * Get PayPal Args for passing to PP.
+     *
+     * @param  WPInv_Invoice $invoice Invoice object.
+     * @return array
+     */
+    protected function get_paypal_args( $invoice ) {
 
         // Whether or not to send the line items as one item.
-		$force_one_line_item = apply_filters( 'getpaid_paypal_force_one_line_item', true, $invoice );
+        $force_one_line_item = apply_filters( 'getpaid_paypal_force_one_line_item', true, $invoice );
 
-		if ( $invoice->is_recurring() || ( wpinv_use_taxes() && wpinv_prices_include_tax() ) ) {
-			$force_one_line_item = true;
-		}
+        if ( $invoice->is_recurring() || ( wpinv_use_taxes() && wpinv_prices_include_tax() ) ) {
+            $force_one_line_item = true;
+        }
 
-		$paypal_args = apply_filters(
-			'getpaid_paypal_args',
-			array_merge(
-				$this->get_transaction_args( $invoice ),
-				$this->get_line_item_args( $invoice, $force_one_line_item )
-			),
-			$invoice
-		);
+        $paypal_args = apply_filters(
+            'getpaid_paypal_args',
+            array_merge(
+                $this->get_transaction_args( $invoice ),
+                $this->get_line_item_args( $invoice, $force_one_line_item )
+            ),
+            $invoice
+        );
 
-		return $this->fix_request_length( $invoice, $paypal_args );
+        return $this->fix_request_length( $invoice, $paypal_args );
     }
 
     /**
-	 * Get transaction args for paypal request.
-	 *
-	 * @param WPInv_Invoice $invoice Invoice object.
-	 * @return array
-	 */
-	protected function get_transaction_args( $invoice ) {
-
-		return array(
+     * Get transaction args for paypal request.
+     *
+     * @param WPInv_Invoice $invoice Invoice object.
+     * @return array
+     */
+    protected function get_transaction_args( $invoice ) {
+
+        return array(
             'cmd'           => '_cart',
             'business'      => wpinv_get_option( 'paypal_email', false ),
             'no_shipping'   => '1',
@@ -208,16 +208,16 @@ 
     }
 
     /**
-	 * Get line item args for paypal request.
-	 *
-	 * @param  WPInv_Invoice $invoice Invoice object.
-	 * @param  bool     $force_one_line_item Create only one item for this invoice.
-	 * @return array
-	 */
-	protected function get_line_item_args( $invoice, $force_one_line_item = false ) {
+     * Get line item args for paypal request.
+     *
+     * @param  WPInv_Invoice $invoice Invoice object.
+     * @param  bool     $force_one_line_item Create only one item for this invoice.
+     * @return array
+     */
+    protected function get_line_item_args( $invoice, $force_one_line_item = false ) {
 
         // Maybe send invoice as a single item.
-		if ( $force_one_line_item ) {
+        if ( $force_one_line_item ) {
             return $this->get_line_item_args_single_item( $invoice );
         }
 
@@ -237,129 +237,129 @@ 
             $line_item_args['discount_amount_cart'] = wpinv_sanitize_amount( (float) $invoice->get_total_discount(), 2 );
         }
 
-		return array_merge( $line_item_args, $this->get_line_items() );
+        return array_merge( $line_item_args, $this->get_line_items() );
 
     }
 
     /**
-	 * Get line item args for paypal request as a single line item.
-	 *
-	 * @param  WPInv_Invoice $invoice Invoice object.
-	 * @return array
-	 */
-	protected function get_line_item_args_single_item( $invoice ) {
-		$this->delete_line_items();
+     * Get line item args for paypal request as a single line item.
+     *
+     * @param  WPInv_Invoice $invoice Invoice object.
+     * @return array
+     */
+    protected function get_line_item_args_single_item( $invoice ) {
+        $this->delete_line_items();
 
         $item_name = sprintf( __( 'Invoice #%s', 'invoicing' ), $invoice->get_number() );
-		$this->add_line_item( $item_name, 1, wpinv_round_amount( (float) $invoice->get_total(), 2, true ), $invoice->get_id() );
+        $this->add_line_item( $item_name, 1, wpinv_round_amount( (float) $invoice->get_total(), 2, true ), $invoice->get_id() );
 
-		return $this->get_line_items();
+        return $this->get_line_items();
     }
 
     /**
-	 * Return all line items.
-	 */
-	protected function get_line_items() {
-		return $this->line_items;
-	}
+     * Return all line items.
+     */
+    protected function get_line_items() {
+        return $this->line_items;
+    }
 
     /**
-	 * Remove all line items.
-	 */
-	protected function delete_line_items() {
-		$this->line_items = array();
+     * Remove all line items.
+     */
+    protected function delete_line_items() {
+        $this->line_items = array();
     }
 
     /**
-	 * Prepare line items to send to paypal.
-	 *
-	 * @param  WPInv_Invoice $invoice Invoice object.
-	 */
-	protected function prepare_line_items( $invoice ) {
-		$this->delete_line_items();
-
-		// Items.
-		foreach ( $invoice->get_items() as $item ) {
-			$amount   = $item->get_price();
-			$quantity = $invoice->get_template() == 'amount' ? 1 : $item->get_quantity();
-			$this->add_line_item( $item->get_raw_name(), $quantity, $amount, $item->get_id() );
+     * Prepare line items to send to paypal.
+     *
+     * @param  WPInv_Invoice $invoice Invoice object.
+     */
+    protected function prepare_line_items( $invoice ) {
+        $this->delete_line_items();
+
+        // Items.
+        foreach ( $invoice->get_items() as $item ) {
+            $amount   = $item->get_price();
+            $quantity = $invoice->get_template() == 'amount' ? 1 : $item->get_quantity();
+            $this->add_line_item( $item->get_raw_name(), $quantity, $amount, $item->get_id() );
         }
 
         // Fees.
-		foreach ( $invoice->get_fees() as $fee => $data ) {
+        foreach ( $invoice->get_fees() as $fee => $data ) {
             $this->add_line_item( $fee, 1, wpinv_sanitize_amount( $data['initial_fee'] ) );
         }
 
     }
 
     /**
-	 * Add PayPal Line Item.
-	 *
-	 * @param  string $item_name Item name.
-	 * @param  float    $quantity Item quantity.
-	 * @param  float  $amount Amount.
-	 * @param  string $item_number Item number.
-	 */
-	protected function add_line_item( $item_name, $quantity = 1, $amount = 0.0, $item_number = '' ) {
-		$index = ( count( $this->line_items ) / 4 ) + 1;
-
-		$item = apply_filters(
-			'getpaid_paypal_line_item',
-			array(
-				'item_name'   => html_entity_decode( getpaid_limit_length( $item_name ? wp_strip_all_tags( $item_name ) : __( 'Item', 'invoicing' ), 127 ), ENT_NOQUOTES, 'UTF-8' ),
-				'quantity'    => (float) $quantity,
-				'amount'      => wpinv_sanitize_amount( (float) $amount, 2 ),
-				'item_number' => $item_number,
-			),
-			$item_name,
-			$quantity,
-			$amount,
-			$item_number
-		);
+     * Add PayPal Line Item.
+     *
+     * @param  string $item_name Item name.
+     * @param  float    $quantity Item quantity.
+     * @param  float  $amount Amount.
+     * @param  string $item_number Item number.
+     */
+    protected function add_line_item( $item_name, $quantity = 1, $amount = 0.0, $item_number = '' ) {
+        $index = ( count( $this->line_items ) / 4 ) + 1;
 
-		$this->line_items[ 'item_name_' . $index ]   = getpaid_limit_length( $item['item_name'], 127 );
+        $item = apply_filters(
+            'getpaid_paypal_line_item',
+            array(
+                'item_name'   => html_entity_decode( getpaid_limit_length( $item_name ? wp_strip_all_tags( $item_name ) : __( 'Item', 'invoicing' ), 127 ), ENT_NOQUOTES, 'UTF-8' ),
+                'quantity'    => (float) $quantity,
+                'amount'      => wpinv_sanitize_amount( (float) $amount, 2 ),
+                'item_number' => $item_number,
+            ),
+            $item_name,
+            $quantity,
+            $amount,
+            $item_number
+        );
+
+        $this->line_items[ 'item_name_' . $index ]   = getpaid_limit_length( $item['item_name'], 127 );
         $this->line_items[ 'quantity_' . $index ]    = $item['quantity'];
 
         // The price or amount of the product, service, or contribution, not including shipping, handling, or tax.
-		$this->line_items[ 'amount_' . $index ]      = $item['amount'] * $item['quantity'];
-		$this->line_items[ 'item_number_' . $index ] = getpaid_limit_length( $item['item_number'], 127 );
+        $this->line_items[ 'amount_' . $index ]      = $item['amount'] * $item['quantity'];
+        $this->line_items[ 'item_number_' . $index ] = getpaid_limit_length( $item['item_number'], 127 );
     }
 
     /**
-	 * If the default request with line items is too long, generate a new one with only one line item.
-	 *
-	 * https://support.microsoft.com/en-us/help/208427/maximum-url-length-is-2-083-characters-in-internet-explorer.
-	 *
-	 * @param WPInv_Invoice $invoice Invoice to be sent to Paypal.
-	 * @param array    $paypal_args Arguments sent to Paypal in the request.
-	 * @return array
-	 */
-	protected function fix_request_length( $invoice, $paypal_args ) {
-		$max_paypal_length = 2083;
-		$query_candidate   = http_build_query( $paypal_args, '', '&' );
-
-		if ( strlen( $this->endpoint . $query_candidate ) <= $max_paypal_length ) {
-			return $paypal_args;
-		}
-
-		return apply_filters(
-			'getpaid_paypal_args',
-			array_merge(
-				$this->get_transaction_args( $invoice ),
-				$this->get_line_item_args( $invoice, true )
-			),
-			$invoice
-		);
+     * If the default request with line items is too long, generate a new one with only one line item.
+     *
+     * https://support.microsoft.com/en-us/help/208427/maximum-url-length-is-2-083-characters-in-internet-explorer.
+     *
+     * @param WPInv_Invoice $invoice Invoice to be sent to Paypal.
+     * @param array    $paypal_args Arguments sent to Paypal in the request.
+     * @return array
+     */
+    protected function fix_request_length( $invoice, $paypal_args ) {
+        $max_paypal_length = 2083;
+        $query_candidate   = http_build_query( $paypal_args, '', '&' );
+
+        if ( strlen( $this->endpoint . $query_candidate ) <= $max_paypal_length ) {
+            return $paypal_args;
+        }
+
+        return apply_filters(
+            'getpaid_paypal_args',
+            array_merge(
+                $this->get_transaction_args( $invoice ),
+                $this->get_line_item_args( $invoice, true )
+            ),
+            $invoice
+        );
 
     }
 
     /**
-	 * Processes recurring invoices.
-	 *
-	 * @param  array $paypal_args PayPal args.
-	 * @param  WPInv_Invoice    $invoice Invoice object.
-	 */
-	public function process_subscription( $paypal_args, $invoice ) {
+     * Processes recurring invoices.
+     *
+     * @param  array $paypal_args PayPal args.
+     * @param  WPInv_Invoice    $invoice Invoice object.
+     */
+    public function process_subscription( $paypal_args, $invoice ) {
 
         // Make sure this is a subscription.
         if ( ! $invoice->is_recurring() || ! $subscription = getpaid_get_invoice_subscription( $invoice ) ) {
@@ -384,11 +384,11 @@ 
 
             $paypal_args['a1'] = 0 == $initial_amount ? 0 : $initial_amount;
 
-			// Trial period length.
-			$paypal_args['p1'] = $subscription_item->get_trial_interval();
+            // Trial period length.
+            $paypal_args['p1'] = $subscription_item->get_trial_interval();
 
-			// Trial period.
-			$paypal_args['t1'] = $subscription_item->get_trial_period();
+            // Trial period.
+            $paypal_args['t1'] = $subscription_item->get_trial_period();
 
         } else if ( $initial_amount != $recurring_amount ) {
 
@@ -411,40 +411,40 @@ 
         }
 
         // We have a recurring payment
-		if ( ! isset( $param_number ) || 1 == $param_number ) {
+        if ( ! isset( $param_number ) || 1 == $param_number ) {
 
-			// Subscription price
-			$paypal_args['a3'] = $recurring_amount;
+            // Subscription price
+            $paypal_args['a3'] = $recurring_amount;
 
-			// Subscription duration
-			$paypal_args['p3'] = $interval;
+            // Subscription duration
+            $paypal_args['p3'] = $interval;
 
-			// Subscription period
-			$paypal_args['t3'] = $period;
+            // Subscription period
+            $paypal_args['t3'] = $period;
 
         }
 
         // Recurring payments
-		if ( 1 == $bill_times || ( $initial_amount != $recurring_amount && ! $subscription_item->has_free_trial() && 2 == $bill_times ) ) {
+        if ( 1 == $bill_times || ( $initial_amount != $recurring_amount && ! $subscription_item->has_free_trial() && 2 == $bill_times ) ) {
 
-			// Non-recurring payments
-			$paypal_args['src'] = 0;
+            // Non-recurring payments
+            $paypal_args['src'] = 0;
 
-		} else {
+        } else {
 
-			$paypal_args['src'] = 1;
+            $paypal_args['src'] = 1;
 
-			if ( $bill_times > 0 ) {
+            if ( $bill_times > 0 ) {
 
-				// An initial period is being used to charge a sign-up fee
-				if ( $initial_amount != $recurring_amount && ! $subscription_item->has_free_trial() ) {
-					$bill_times--;
-				}
+                // An initial period is being used to charge a sign-up fee
+                if ( $initial_amount != $recurring_amount && ! $subscription_item->has_free_trial() ) {
+                    $bill_times--;
+                }
 
                 // Make sure it's not over the max of 52
                 $paypal_args['srt'] = ( $bill_times <= 52 ? absint( $bill_times ) : 52 );
 
-			}
+            }
         }
 
         // Force return URL so that order description & instructions display
@@ -460,19 +460,19 @@ 
         }
 
         return apply_filters(
-			'getpaid_paypal_subscription_args',
-			$paypal_args,
-			$invoice
+            'getpaid_paypal_subscription_args',
+            $paypal_args,
+            $invoice
         );
 
     }
 
     /**
-	 * Processes ipns and marks payments as complete.
-	 *
-	 * @return void
-	 */
-	public function verify_ipn() {
+     * Processes ipns and marks payments as complete.
+     *
+     * @return void
+     */
+    public function verify_ipn() {
         new GetPaid_Paypal_Gateway_IPN_Handler( $this );
     }
 
@@ -482,19 +482,19 @@ 
     public function sandbox_notice() {
 
         return sprintf(
-			__( 'SANDBOX ENABLED. You can use sandbox testing accounts only. See the %sPayPal Sandbox Testing Guide%s for more details.', 'invoicing' ),
-			'<a href="https://developer.paypal.com/docs/classic/lifecycle/ug_sandbox/">',
-			'</a>'
-		);
+            __( 'SANDBOX ENABLED. You can use sandbox testing accounts only. See the %sPayPal Sandbox Testing Guide%s for more details.', 'invoicing' ),
+            '<a href="https://developer.paypal.com/docs/classic/lifecycle/ug_sandbox/">',
+            '</a>'
+        );
 
     }
 
-	/**
-	 * Filters the gateway settings.
-	 *
-	 * @param array $admin_settings
-	 */
-	public function admin_settings( $admin_settings ) {
+    /**
+     * Filters the gateway settings.
+     *
+     * @param array $admin_settings
+     */
+    public function admin_settings( $admin_settings ) {
 
         $currencies = sprintf(
             __( 'Supported Currencies: %s', 'invoicing' ),
@@ -503,7 +503,7 @@ 
 
         $admin_settings['paypal_active']['desc'] .= " ($currencies)";
         $admin_settings['paypal_desc']['std']     = __( 'Pay via PayPal: you can pay with your credit card if you don\'t have a PayPal account.', 'invoicing' );
-		/*
+        /*
 		// Access tokens.
         $live_account    = wpinv_get_option( 'paypal_live_access_token' );
         $sandbox_account = wpinv_get_option( 'paypal_test_access_token' );
@@ -534,12 +534,12 @@ 
 		*/
         $admin_settings['paypal_email'] = array(
             'type'  => 'text',
-			'class' => 'live-auth-data',
+            'class' => 'live-auth-data',
             'id'    => 'paypal_email',
             'name'  => __( 'Live Email Address', 'invoicing' ),
             'desc'  => __( 'The email address of your PayPal account.', 'invoicing' ),
         );
-		/*
+        /*
 		$admin_settings['paypal_merchant_id'] = array(
             'type'  => 'text',
 			'class' => 'live-auth-data',
@@ -600,29 +600,29 @@ 
             'readonly' => true,
         );
 
-		return $admin_settings;
-	}
+        return $admin_settings;
+    }
 
-	/**
-	 * Retrieves the PayPal connect URL when using the setup wizzard.
-	 *
-	 *
+    /**
+     * Retrieves the PayPal connect URL when using the setup wizzard.
+     *
+     *
      * @param array $data
      * @return string
-	 */
-	public static function maybe_get_connect_url( $url = '', $data ) {
-		return self::get_connect_url( false, urldecode( $data['redirect'] ) );
-	}
-
-	/**
-	 * Retrieves the PayPal connect URL.
-	 *
-	 *
+     */
+    public static function maybe_get_connect_url( $url = '', $data ) {
+        return self::get_connect_url( false, urldecode( $data['redirect'] ) );
+    }
+
+    /**
+     * Retrieves the PayPal connect URL.
+     *
+     *
      * @param bool $is_sandbox
-	 * @param string $redirect
+     * @param string $redirect
      * @return string
-	 */
-	public static function get_connect_url( $is_sandbox, $redirect = '' ) {
+     */
+    public static function get_connect_url( $is_sandbox, $redirect = '' ) {
 
         $redirect_url = add_query_arg(
             array(
@@ -632,7 +632,7 @@ 
                 'tab'                  => 'gateways',
                 'section'              => 'paypal',
                 'getpaid-nonce'        => wp_create_nonce( 'getpaid-nonce' ),
-				'redirect'             => urlencode( $redirect ),
+                'redirect'             => urlencode( $redirect ),
             ),
             admin_url( 'admin.php' )
         );
@@ -647,12 +647,12 @@ 
 
     }
 
-	/**
-	 * Generates settings page js.
-	 *
+    /**
+     * Generates settings page js.
+     *
      * @return void
-	 */
-	public static function get_js() { return '';
+     */
+    public static function get_js() { return '';
         ob_start();
         ?>
             <script>
@@ -698,109 +698,109 @@ 
         return ob_get_clean();
     }
 
-	/**
-	 * Connects to PayPal.
-	 *
-	 * @param array $data Connection data.
-	 * @return void
-	 */
-	public function connect_paypal( $data ) {
-
-		$sandbox      = $this->is_sandbox();
-		$data         = wp_unslash( $data );
-		$access_token = empty( $data['access_token'] ) ? '' : sanitize_text_field( $data['access_token'] );
-
-		if ( isset( $data['live_mode'] ) ) {
-			$sandbox = empty( $data['live_mode'] );
-		}
-
-		wpinv_update_option( 'paypal_sandbox', (int) $sandbox );
-		wpinv_update_option( 'paypal_active', 1 );
-
-		if ( ! empty( $data['error_description'] ) ) {
-			getpaid_admin()->show_error( wp_kses_post( urldecode( $data['error_description'] ) ) );
-		} else {
-
-			// Retrieve the user info.
-			$user_info = wp_remote_get(
-				! $sandbox ? 'https://api-m.paypal.com/v1/identity/oauth2/userinfo?schema=paypalv1.1' : 'https://api-m.sandbox.paypal.com/v1/identity/oauth2/userinfo?schema=paypalv1.1',
-				array(
-
-					'headers' => array(
-						'Authorization' => 'Bearer ' . $access_token,
-						'Content-type'  => 'application/json',
-					)
-
-				)
-			);
-
-			if ( is_wp_error( $user_info ) ) {
-				getpaid_admin()->show_error( wp_kses_post( $user_info->get_error_message() ) );
-			} else {
-
-				// Create application.
-				$user_info = json_decode( wp_remote_retrieve_body( $user_info ) );
-				$app       = wp_remote_post(
-					! $sandbox ? 'https://api-m.paypal.com/v1/identity/applications' : 'https://api-m.sandbox.paypal.com/v1/identity/applications',
-					array(
-
-						'body'    => array(
-							'application_type' => 'web',
-							'redirect_uris'    => array(
-								add_query_arg( 'getpaid_oauth', 'paypal', home_url() ),
-							),
-							'client_name'      => 'GetPaid',
-							'contacts'         => array( $user_info->emails[0]->value ),
-							'payer_id'         => $user_info->payer_id,
-							'migrated_app'     => '',
-						),
-						'headers' => array(
-							'Authorization' => 'Bearer ' . $access_token,
-							'Content-type'  => 'application/json',
-						)
-
-					)
-				);
-
-				if ( is_wp_error( $app ) ) {
-					getpaid_admin()->show_error( wp_kses_post( $app->get_error_message() ) );
-				} else {
-
-					$app = json_decode( wp_remote_retrieve_body( $app ) );
-					wpinv_error_log( $app );
-					if ( $sandbox ) {
-						wpinv_update_option( 'paypal_sandbox_email', sanitize_email( $user_info->emails[0]->value ) );
-						wpinv_update_option( 'paypal_sandbox_merchant_id', '' );
-						wpinv_update_option( 'paypal_sandbox_client_id', sanitize_text_field( '' ) );
-						wpinv_update_option( 'paypal_sandbox_client_secret', sanitize_text_field( '' ) );
-						wpinv_update_option( 'paypal_sandbox_client_secret_expires_at', sanitize_text_field( '' ) );
-						wpinv_update_option( 'paypal_sandbox_refresh_token', sanitize_text_field( urldecode( $data['refresh_token'] ) ) );
-						set_transient( 'getpaid_paypal_sandbox_access_token', sanitize_text_field( urldecode( $data['access_token'] ) ), (int) $data['expires_in'] );
-						getpaid_admin()->show_success( __( 'Successfully connected your PayPal sandbox account', 'invoicing' ) );
-					} else {
-						wpinv_update_option( 'paypal_email', sanitize_email( $user_info->emails[0]->value ) );
-						wpinv_update_option( 'paypal_merchant_id', '' );
-						wpinv_update_option( 'paypal_client_id', sanitize_text_field( '' ) );
-						wpinv_update_option( 'paypal_client_secret', sanitize_text_field( '' ) );
-						wpinv_update_option( 'paypal_client_secret_expires_at', sanitize_text_field( '' ) );
-						wpinv_update_option( 'paypal_refresh_token', sanitize_text_field( urldecode( $data['refresh_token'] ) ) );
-						set_transient( 'getpaid_paypal_access_token', sanitize_text_field( urldecode( $data['access_token'] ) ), (int) $data['expires_in'] );
-						getpaid_admin()->show_success( __( 'Successfully connected your PayPal account', 'invoicing' ) );
-					}
+    /**
+     * Connects to PayPal.
+     *
+     * @param array $data Connection data.
+     * @return void
+     */
+    public function connect_paypal( $data ) {
 
-				}
+        $sandbox      = $this->is_sandbox();
+        $data         = wp_unslash( $data );
+        $access_token = empty( $data['access_token'] ) ? '' : sanitize_text_field( $data['access_token'] );
 
-			}
+        if ( isset( $data['live_mode'] ) ) {
+            $sandbox = empty( $data['live_mode'] );
+        }
 
-		}
+        wpinv_update_option( 'paypal_sandbox', (int) $sandbox );
+        wpinv_update_option( 'paypal_active', 1 );
 
-		$redirect = empty( $data['redirect'] ) ? admin_url( 'admin.php?page=wpinv-settings&tab=gateways&section=paypal' ) : urldecode( $data['redirect'] );
+        if ( ! empty( $data['error_description'] ) ) {
+            getpaid_admin()->show_error( wp_kses_post( urldecode( $data['error_description'] ) ) );
+        } else {
+
+            // Retrieve the user info.
+            $user_info = wp_remote_get(
+                ! $sandbox ? 'https://api-m.paypal.com/v1/identity/oauth2/userinfo?schema=paypalv1.1' : 'https://api-m.sandbox.paypal.com/v1/identity/oauth2/userinfo?schema=paypalv1.1',
+                array(
+
+                    'headers' => array(
+                        'Authorization' => 'Bearer ' . $access_token,
+                        'Content-type'  => 'application/json',
+                    )
 
-		if ( isset( $data['step'] ) ) {
-			$redirect = add_query_arg( 'step', $data['step'], $redirect );
-		}
-		wp_redirect( $redirect );
-		exit;
-	}
+                )
+            );
+
+            if ( is_wp_error( $user_info ) ) {
+                getpaid_admin()->show_error( wp_kses_post( $user_info->get_error_message() ) );
+            } else {
+
+                // Create application.
+                $user_info = json_decode( wp_remote_retrieve_body( $user_info ) );
+                $app       = wp_remote_post(
+                    ! $sandbox ? 'https://api-m.paypal.com/v1/identity/applications' : 'https://api-m.sandbox.paypal.com/v1/identity/applications',
+                    array(
+
+                        'body'    => array(
+                            'application_type' => 'web',
+                            'redirect_uris'    => array(
+                                add_query_arg( 'getpaid_oauth', 'paypal', home_url() ),
+                            ),
+                            'client_name'      => 'GetPaid',
+                            'contacts'         => array( $user_info->emails[0]->value ),
+                            'payer_id'         => $user_info->payer_id,
+                            'migrated_app'     => '',
+                        ),
+                        'headers' => array(
+                            'Authorization' => 'Bearer ' . $access_token,
+                            'Content-type'  => 'application/json',
+                        )
+
+                    )
+                );
+
+                if ( is_wp_error( $app ) ) {
+                    getpaid_admin()->show_error( wp_kses_post( $app->get_error_message() ) );
+                } else {
+
+                    $app = json_decode( wp_remote_retrieve_body( $app ) );
+                    wpinv_error_log( $app );
+                    if ( $sandbox ) {
+                        wpinv_update_option( 'paypal_sandbox_email', sanitize_email( $user_info->emails[0]->value ) );
+                        wpinv_update_option( 'paypal_sandbox_merchant_id', '' );
+                        wpinv_update_option( 'paypal_sandbox_client_id', sanitize_text_field( '' ) );
+                        wpinv_update_option( 'paypal_sandbox_client_secret', sanitize_text_field( '' ) );
+                        wpinv_update_option( 'paypal_sandbox_client_secret_expires_at', sanitize_text_field( '' ) );
+                        wpinv_update_option( 'paypal_sandbox_refresh_token', sanitize_text_field( urldecode( $data['refresh_token'] ) ) );
+                        set_transient( 'getpaid_paypal_sandbox_access_token', sanitize_text_field( urldecode( $data['access_token'] ) ), (int) $data['expires_in'] );
+                        getpaid_admin()->show_success( __( 'Successfully connected your PayPal sandbox account', 'invoicing' ) );
+                    } else {
+                        wpinv_update_option( 'paypal_email', sanitize_email( $user_info->emails[0]->value ) );
+                        wpinv_update_option( 'paypal_merchant_id', '' );
+                        wpinv_update_option( 'paypal_client_id', sanitize_text_field( '' ) );
+                        wpinv_update_option( 'paypal_client_secret', sanitize_text_field( '' ) );
+                        wpinv_update_option( 'paypal_client_secret_expires_at', sanitize_text_field( '' ) );
+                        wpinv_update_option( 'paypal_refresh_token', sanitize_text_field( urldecode( $data['refresh_token'] ) ) );
+                        set_transient( 'getpaid_paypal_access_token', sanitize_text_field( urldecode( $data['access_token'] ) ), (int) $data['expires_in'] );
+                        getpaid_admin()->show_success( __( 'Successfully connected your PayPal account', 'invoicing' ) );
+                    }
+
+                }
+
+            }
+
+        }
+
+        $redirect = empty( $data['redirect'] ) ? admin_url( 'admin.php?page=wpinv-settings&tab=gateways&section=paypal' ) : urldecode( $data['redirect'] );
+
+        if ( isset( $data['step'] ) ) {
+            $redirect = add_query_arg( 'step', $data['step'], $redirect );
+        }
+        wp_redirect( $redirect );
+        exit;
+    }
 
 }