AyeCode / invoicing

includes/api/class-getpaid-rest-settings-controller.php

Indentation +749 added lines, -749 removed lines

@@ -18,758 +18,758 @@
  */
 class GetPaid_REST_Settings_Controller extends GetPaid_REST_Controller {
 
-	/**
-	 * An array of available settings.
-	 *
-	 * @var string
-	 */
-	protected $settings;
-
-	/**
-	 * Route base.
-	 *
-	 * @var string
-	 */
-	protected $rest_base = 'settings';
-
-	/**
-	 * Registers the routes for the objects of the controller.
-	 *
-	 * @since 2.0.0
-	 *
-	 * @see register_rest_route()
-	 */
-	public function register_namespace_routes( $namespace ) {
-
-		// List all registered tabs.
-		register_rest_route(
-			$namespace,
-			$this->rest_base,
-			array(
-				array(
-					'methods'             => WP_REST_Server::READABLE,
-					'callback'            => array( $this, 'get_tabs' ),
-					'permission_callback' => array( $this, 'get_items_permissions_check' ),
-				),
-				'schema' => '__return_empty_array',
-			)
-		);
-
-		// View/Update a single setting.
-		register_rest_route(
-			$namespace,
-			$this->rest_base . '/setting/(?P<id>[\w-]+)',
-			array(
-				'args'   => array(
-					'id'    => array(
-						'description' => __( 'Unique identifier for the setting.', 'invoicing' ),
-						'type'        => 'string',
-						'required'    => true,
-					),
-				),
-				array(
-					'methods'             => WP_REST_Server::READABLE,
-					'callback'            => array( $this, 'get_item' ),
-					'permission_callback' => array( $this, 'get_items_permissions_check' ),
-				),
-				array(
-					'methods'             => WP_REST_Server::EDITABLE,
-					'callback'            => array( $this, 'update_item' ),
-					'permission_callback' => array( $this, 'update_items_permissions_check' ),
-					'args'                => $this->get_endpoint_args_for_item_schema( WP_REST_Server::EDITABLE ),
-				),
-				'schema' => array( $this, 'get_public_item_schema' ),
-			)
-		);
-
-		// List registered sections for a given tab.
-		register_rest_route(
-			$namespace,
-			$this->rest_base . '/(?P<tab>[\w-]+)',
-			array(
-				'args'   => array(
-					'tab'    => array(
-						'description' => __( 'Unique identifier for the tab whose sections should be retrieved.', 'invoicing' ),
-						'type'        => 'string',
-						'required'    => true,
-						'enum'        => array_keys( wpinv_get_settings_tabs() ),
-					),
-				),
-				array(
-					'methods'             => WP_REST_Server::READABLE,
-					'callback'            => array( $this, 'get_sections' ),
-					'permission_callback' => array( $this, 'get_items_permissions_check' ),
-				),
-				'schema' => '__return_empty_array',
-			)
-		);
-
-		// List all registered settings for a given tab.
-		register_rest_route(
-			$namespace,
-			$this->rest_base . '/(?P<tab>[\w-]+)/(?P<section>[\w-]+)',
-			array(
-				'args'   => array(
-					'tab'    => array(
-						'description' => __( 'Unique identifier for the tab whose settings should be retrieved.', 'invoicing' ),
-						'type'        => 'string',
-						'required'    => true,
-						'enum'        => array_keys( wpinv_get_settings_tabs() ),
-					),
-					'section'    => array(
-						'description' => __( 'The section in the tab whose settings should be retrieved.', 'invoicing' ),
-						'type'        => 'string',
-						'required'    => true,
-					),
-				),
-				array(
-					'methods'             => WP_REST_Server::READABLE,
-					'callback'            => array( $this, 'get_items' ),
-					'permission_callback' => array( $this, 'get_items_permissions_check' ),
-				),
-				'schema' => array( $this, 'get_public_item_schema' ),
-			)
-		);
-
-		register_rest_route(
-			$namespace,
-			'/' . $this->rest_base . '/batch',
-			array(
-				'args'   => array(
-					'id'              => array(
-						'description' => __( 'Setting ID.', 'invoicing' ),
-						'type'        => 'string',
-					),
-				),
-				array(
-					'methods'             => WP_REST_Server::EDITABLE,
-					'callback'            => array( $this, 'batch_items' ),
-					'permission_callback' => array( $this, 'batch_items_permissions_check' ),
-					'args'                => $this->get_endpoint_args_for_item_schema( WP_REST_Server::EDITABLE ),
-				),
-				'schema' => array( $this, 'get_public_batch_schema' ),
-			)
-		);
-
-	}
+    /**
+     * An array of available settings.
+     *
+     * @var string
+     */
+    protected $settings;
+
+    /**
+     * Route base.
+     *
+     * @var string
+     */
+    protected $rest_base = 'settings';
+
+    /**
+     * Registers the routes for the objects of the controller.
+     *
+     * @since 2.0.0
+     *
+     * @see register_rest_route()
+     */
+    public function register_namespace_routes( $namespace ) {
+
+        // List all registered tabs.
+        register_rest_route(
+            $namespace,
+            $this->rest_base,
+            array(
+                array(
+                    'methods'             => WP_REST_Server::READABLE,
+                    'callback'            => array( $this, 'get_tabs' ),
+                    'permission_callback' => array( $this, 'get_items_permissions_check' ),
+                ),
+                'schema' => '__return_empty_array',
+            )
+        );
+
+        // View/Update a single setting.
+        register_rest_route(
+            $namespace,
+            $this->rest_base . '/setting/(?P<id>[\w-]+)',
+            array(
+                'args'   => array(
+                    'id'    => array(
+                        'description' => __( 'Unique identifier for the setting.', 'invoicing' ),
+                        'type'        => 'string',
+                        'required'    => true,
+                    ),
+                ),
+                array(
+                    'methods'             => WP_REST_Server::READABLE,
+                    'callback'            => array( $this, 'get_item' ),
+                    'permission_callback' => array( $this, 'get_items_permissions_check' ),
+                ),
+                array(
+                    'methods'             => WP_REST_Server::EDITABLE,
+                    'callback'            => array( $this, 'update_item' ),
+                    'permission_callback' => array( $this, 'update_items_permissions_check' ),
+                    'args'                => $this->get_endpoint_args_for_item_schema( WP_REST_Server::EDITABLE ),
+                ),
+                'schema' => array( $this, 'get_public_item_schema' ),
+            )
+        );
+
+        // List registered sections for a given tab.
+        register_rest_route(
+            $namespace,
+            $this->rest_base . '/(?P<tab>[\w-]+)',
+            array(
+                'args'   => array(
+                    'tab'    => array(
+                        'description' => __( 'Unique identifier for the tab whose sections should be retrieved.', 'invoicing' ),
+                        'type'        => 'string',
+                        'required'    => true,
+                        'enum'        => array_keys( wpinv_get_settings_tabs() ),
+                    ),
+                ),
+                array(
+                    'methods'             => WP_REST_Server::READABLE,
+                    'callback'            => array( $this, 'get_sections' ),
+                    'permission_callback' => array( $this, 'get_items_permissions_check' ),
+                ),
+                'schema' => '__return_empty_array',
+            )
+        );
+
+        // List all registered settings for a given tab.
+        register_rest_route(
+            $namespace,
+            $this->rest_base . '/(?P<tab>[\w-]+)/(?P<section>[\w-]+)',
+            array(
+                'args'   => array(
+                    'tab'    => array(
+                        'description' => __( 'Unique identifier for the tab whose settings should be retrieved.', 'invoicing' ),
+                        'type'        => 'string',
+                        'required'    => true,
+                        'enum'        => array_keys( wpinv_get_settings_tabs() ),
+                    ),
+                    'section'    => array(
+                        'description' => __( 'The section in the tab whose settings should be retrieved.', 'invoicing' ),
+                        'type'        => 'string',
+                        'required'    => true,
+                    ),
+                ),
+                array(
+                    'methods'             => WP_REST_Server::READABLE,
+                    'callback'            => array( $this, 'get_items' ),
+                    'permission_callback' => array( $this, 'get_items_permissions_check' ),
+                ),
+                'schema' => array( $this, 'get_public_item_schema' ),
+            )
+        );
+
+        register_rest_route(
+            $namespace,
+            '/' . $this->rest_base . '/batch',
+            array(
+                'args'   => array(
+                    'id'              => array(
+                        'description' => __( 'Setting ID.', 'invoicing' ),
+                        'type'        => 'string',
+                    ),
+                ),
+                array(
+                    'methods'             => WP_REST_Server::EDITABLE,
+                    'callback'            => array( $this, 'batch_items' ),
+                    'permission_callback' => array( $this, 'batch_items_permissions_check' ),
+                    'args'                => $this->get_endpoint_args_for_item_schema( WP_REST_Server::EDITABLE ),
+                ),
+                'schema' => array( $this, 'get_public_batch_schema' ),
+            )
+        );
+
+    }
 	
-	/**
-	 * Return all settings.
-	 *
-	 * @since  2.0.0
-	 * @param  WP_REST_Request $request Request data.
-	 * @return WP_Error|WP_REST_Response
-	 */
-	public function get_items( $request ) {
-
-		$settings = $this->get_settings();
-
-		if ( ! isset( $settings[ $request['tab'] ] ) ) {
-			return new WP_Error( 'rest_invalid_tab', __( 'Invalid tab.', 'invoicing' ), array( 'status' => 400 ) );
-		}
-
-		if ( ! isset( $settings[ $request['tab'] ][ $request['section'] ] ) ) {
-			return new WP_Error( 'rest_invalid_section', __( 'Invalid section.', 'invoicing' ), array( 'status' => 400 ) );
-		}
-
-		$settings = $settings[ $request['tab'] ][ $request['section'] ];
-		$prepared = array();
-
-		foreach ( $settings as $setting ) {
-
-			$setting      = $this->sanitize_setting( $setting );
-			$setting_data = $this->prepare_item_for_response( $setting, $request );
-			$setting_data = $this->prepare_response_for_collection( $setting_data );
-
-			if ( $this->is_setting_type_valid( $setting['type'] ) ) {
-				$prepared[]   = $setting_data;
-			}
-
-		}
-
-		return rest_ensure_response( $prepared );
-	}
-
-	/**
-	 * Return a single setting.
-	 *
-	 * @since  2.0.0
-	 * @param  WP_REST_Request $request Request data.
-	 * @return WP_Error|WP_REST_Response
-	 */
-	public function get_item( $request ) {
-		$setting  = $this->get_setting( $request['id'] );
-
-		if ( is_wp_error( $setting ) ) {
-			return $setting;
-		}
-
-		$setting  = $this->sanitize_setting( $setting );
-		$response = $this->prepare_item_for_response( $setting, $request );
-		return rest_ensure_response( $response );
-	}
-
-	/**
-	 * Update a single setting.
-	 *
-	 * @since  2.0.0
-	 * @param  WP_REST_Request $request Request data.
-	 * @return WP_Error|WP_REST_Response
-	 */
-	public function update_item( $request ) {
-		$setting = $this->get_setting( $request['id'] );
-
-		if ( is_wp_error( $setting ) ) {
-			return $setting;
-		}
-
-		if ( is_callable( array( $this, 'validate_setting_' . $setting['type'] . '_field' ) ) ) {
-			$value = $this->{'validate_setting_' . $setting['type'] . '_field'}( $request['value'], $setting );
-		} else {
-			$value = $this->validate_setting_text_field( $request['value'], $setting );
-		}
-
-		if ( is_wp_error( $value ) ) {
-			return $value;
-		}
-
-		wpinv_update_option( $request['id'], $value );
-		$setting['value'] = $value;
-		$setting          = $this->sanitize_setting( $setting );
-		$response         = $this->prepare_item_for_response( $setting, $request );
-
-		return rest_ensure_response( $response );
-	}
-
-	/**
-	 * Makes sure the current user has access to READ the settings APIs.
-	 *
-	 * @since  2.0.0
-	 * @param WP_REST_Request $request Full data about the request.
-	 * @return WP_Error|boolean
-	 */
-	public function get_items_permissions_check( $request ) {
-		if ( ! wpinv_current_user_can_manage_invoicing() ) {
-			return new WP_Error( 'rest_cannot_view', __( 'Sorry, you cannot list resources.', 'invoicing' ), array( 'status' => rest_authorization_required_code() ) );
-		}
-
-		return true;
-	}
-
-	/**
-	 * Makes sure the current user has access to WRITE the settings APIs.
-	 *
-	 * @since  2.0.0
-	 * @param WP_REST_Request $request Full data about the request.
-	 * @return WP_Error|boolean
-	 */
-	public function update_items_permissions_check( $request ) {
-		if ( ! wpinv_current_user_can_manage_invoicing() ) {
-			return new WP_Error( 'rest_cannot_edit', __( 'Sorry, you cannot edit this resource.', 'invoicing' ), array( 'status' => rest_authorization_required_code() ) );
-		}
-
-		return true;
-	}
-
-	/**
-	 * Check if a given request has access batch create, update and delete items.
-	 *
-	 * @param  WP_REST_Request $request Full details about the request.
-	 *
-	 * @return boolean|WP_Error
-	 */
-	public function batch_items_permissions_check( $request ) {
-		return wpinv_current_user_can_manage_invoicing() ? true : new WP_Error( 'rest_cannot_batch', __( 'Sorry, you are not allowed to batch manipulate this resource.', 'invoicing' ), array( 'status' => rest_authorization_required_code() ) );
-	}
-
-	/**
-	 * Prepare links for the request.
-	 *
-	 * @param string $setting_id Setting ID.
-	 * @return array Links for the given setting.
-	 */
-	protected function prepare_links( $setting_id ) {
-
-		$links = array(
-			'self'       => array(
-				'href'   => rest_url( sprintf( '/%s/%s/setting/%s', $this->namespace, $this->rest_base, $setting_id ) ),
-			),
-			'collection' => array(
-				'href'   => rest_url( sprintf( '/%s/%s', $this->namespace, $this->rest_base ) ),
-			),
-		);
-
-		return $links;
-	}
-
-	/**
-	 * Prepare a settings object for serialization.
-	 *
-	 * @since  2.0.0
-	 * @param array           $item Setting object.
-	 * @param WP_REST_Request $request Request object.
-	 * @return WP_REST_Response $response Response data.
-	 */
-	public function prepare_item_for_response( $item, $request ) {
-		$context = empty( $request['context'] ) ? 'view' : $request['context'];
-		$data    = $this->add_additional_fields_to_object( $item, $request );
-		$data    = $this->filter_response_by_context( $data, $context );
-
-		$response = rest_ensure_response( $data );
-
-		$response->add_links( $this->prepare_links( $item['id'] ) );
-
-		return $response;
-	}
-
-	/**
-	 * Filters out bad values from the settings array/filter so we
-	 * only return known values via the API.
-	 *
-	 * @since 2.0.0
-	 * @param  array $setting Setting.
-	 * @return array
-	 */
-	public function filter_setting( $setting ) {
-		return array_intersect_key(
-			$setting,
-			array_flip( array_filter( array_keys( $setting ), array( $this, 'allowed_setting_keys' ) ) )
-		);
-	}
-
-	/**
-	 * Callback for allowed keys for each setting response.
-	 *
-	 * @param  string $key Key to check.
-	 * @return boolean
-	 */
-	public function allowed_setting_keys( $key ) {
-		return in_array( $key, array_keys( $this->setting_defaults() ), true );
-	}
-
-	/**
-	 * Returns default options for a setting. null means the field is required.
-	 *
-	 * @since  2.0.0
-	 * @return array
-	 */
-	protected function setting_defaults() {
-		return array(
-			'id'          => null,
-			'name'        => null,
-			'desc'        => '',
-			'options'     => array(),
-			'std'         => false,
-			'value'       => false,
-			'placeholder' => '',
-			'readonly'    => false,
-			'faux'        => false,
-			'section'     => 'main',
-			'tab'         => 'general',
-			'type'        => 'text',
-		);
-	}
-
-	/**
-	 * Sanitizes a setting's field.
-	 *
-	 * @param  array $setting The setting to sanitize.
-	 * @return array
-	 */
-	public function sanitize_setting( $setting ) {
+    /**
+     * Return all settings.
+     *
+     * @since  2.0.0
+     * @param  WP_REST_Request $request Request data.
+     * @return WP_Error|WP_REST_Response
+     */
+    public function get_items( $request ) {
+
+        $settings = $this->get_settings();
+
+        if ( ! isset( $settings[ $request['tab'] ] ) ) {
+            return new WP_Error( 'rest_invalid_tab', __( 'Invalid tab.', 'invoicing' ), array( 'status' => 400 ) );
+        }
+
+        if ( ! isset( $settings[ $request['tab'] ][ $request['section'] ] ) ) {
+            return new WP_Error( 'rest_invalid_section', __( 'Invalid section.', 'invoicing' ), array( 'status' => 400 ) );
+        }
+
+        $settings = $settings[ $request['tab'] ][ $request['section'] ];
+        $prepared = array();
+
+        foreach ( $settings as $setting ) {
+
+            $setting      = $this->sanitize_setting( $setting );
+            $setting_data = $this->prepare_item_for_response( $setting, $request );
+            $setting_data = $this->prepare_response_for_collection( $setting_data );
+
+            if ( $this->is_setting_type_valid( $setting['type'] ) ) {
+                $prepared[]   = $setting_data;
+            }
+
+        }
+
+        return rest_ensure_response( $prepared );
+    }
+
+    /**
+     * Return a single setting.
+     *
+     * @since  2.0.0
+     * @param  WP_REST_Request $request Request data.
+     * @return WP_Error|WP_REST_Response
+     */
+    public function get_item( $request ) {
+        $setting  = $this->get_setting( $request['id'] );
+
+        if ( is_wp_error( $setting ) ) {
+            return $setting;
+        }
+
+        $setting  = $this->sanitize_setting( $setting );
+        $response = $this->prepare_item_for_response( $setting, $request );
+        return rest_ensure_response( $response );
+    }
+
+    /**
+     * Update a single setting.
+     *
+     * @since  2.0.0
+     * @param  WP_REST_Request $request Request data.
+     * @return WP_Error|WP_REST_Response
+     */
+    public function update_item( $request ) {
+        $setting = $this->get_setting( $request['id'] );
+
+        if ( is_wp_error( $setting ) ) {
+            return $setting;
+        }
+
+        if ( is_callable( array( $this, 'validate_setting_' . $setting['type'] . '_field' ) ) ) {
+            $value = $this->{'validate_setting_' . $setting['type'] . '_field'}( $request['value'], $setting );
+        } else {
+            $value = $this->validate_setting_text_field( $request['value'], $setting );
+        }
+
+        if ( is_wp_error( $value ) ) {
+            return $value;
+        }
+
+        wpinv_update_option( $request['id'], $value );
+        $setting['value'] = $value;
+        $setting          = $this->sanitize_setting( $setting );
+        $response         = $this->prepare_item_for_response( $setting, $request );
+
+        return rest_ensure_response( $response );
+    }
+
+    /**
+     * Makes sure the current user has access to READ the settings APIs.
+     *
+     * @since  2.0.0
+     * @param WP_REST_Request $request Full data about the request.
+     * @return WP_Error|boolean
+     */
+    public function get_items_permissions_check( $request ) {
+        if ( ! wpinv_current_user_can_manage_invoicing() ) {
+            return new WP_Error( 'rest_cannot_view', __( 'Sorry, you cannot list resources.', 'invoicing' ), array( 'status' => rest_authorization_required_code() ) );
+        }
+
+        return true;
+    }
+
+    /**
+     * Makes sure the current user has access to WRITE the settings APIs.
+     *
+     * @since  2.0.0
+     * @param WP_REST_Request $request Full data about the request.
+     * @return WP_Error|boolean
+     */
+    public function update_items_permissions_check( $request ) {
+        if ( ! wpinv_current_user_can_manage_invoicing() ) {
+            return new WP_Error( 'rest_cannot_edit', __( 'Sorry, you cannot edit this resource.', 'invoicing' ), array( 'status' => rest_authorization_required_code() ) );
+        }
+
+        return true;
+    }
+
+    /**
+     * Check if a given request has access batch create, update and delete items.
+     *
+     * @param  WP_REST_Request $request Full details about the request.
+     *
+     * @return boolean|WP_Error
+     */
+    public function batch_items_permissions_check( $request ) {
+        return wpinv_current_user_can_manage_invoicing() ? true : new WP_Error( 'rest_cannot_batch', __( 'Sorry, you are not allowed to batch manipulate this resource.', 'invoicing' ), array( 'status' => rest_authorization_required_code() ) );
+    }
+
+    /**
+     * Prepare links for the request.
+     *
+     * @param string $setting_id Setting ID.
+     * @return array Links for the given setting.
+     */
+    protected function prepare_links( $setting_id ) {
+
+        $links = array(
+            'self'       => array(
+                'href'   => rest_url( sprintf( '/%s/%s/setting/%s', $this->namespace, $this->rest_base, $setting_id ) ),
+            ),
+            'collection' => array(
+                'href'   => rest_url( sprintf( '/%s/%s', $this->namespace, $this->rest_base ) ),
+            ),
+        );
+
+        return $links;
+    }
+
+    /**
+     * Prepare a settings object for serialization.
+     *
+     * @since  2.0.0
+     * @param array           $item Setting object.
+     * @param WP_REST_Request $request Request object.
+     * @return WP_REST_Response $response Response data.
+     */
+    public function prepare_item_for_response( $item, $request ) {
+        $context = empty( $request['context'] ) ? 'view' : $request['context'];
+        $data    = $this->add_additional_fields_to_object( $item, $request );
+        $data    = $this->filter_response_by_context( $data, $context );
+
+        $response = rest_ensure_response( $data );
+
+        $response->add_links( $this->prepare_links( $item['id'] ) );
+
+        return $response;
+    }
+
+    /**
+     * Filters out bad values from the settings array/filter so we
+     * only return known values via the API.
+     *
+     * @since 2.0.0
+     * @param  array $setting Setting.
+     * @return array
+     */
+    public function filter_setting( $setting ) {
+        return array_intersect_key(
+            $setting,
+            array_flip( array_filter( array_keys( $setting ), array( $this, 'allowed_setting_keys' ) ) )
+        );
+    }
+
+    /**
+     * Callback for allowed keys for each setting response.
+     *
+     * @param  string $key Key to check.
+     * @return boolean
+     */
+    public function allowed_setting_keys( $key ) {
+        return in_array( $key, array_keys( $this->setting_defaults() ), true );
+    }
+
+    /**
+     * Returns default options for a setting. null means the field is required.
+     *
+     * @since  2.0.0
+     * @return array
+     */
+    protected function setting_defaults() {
+        return array(
+            'id'          => null,
+            'name'        => null,
+            'desc'        => '',
+            'options'     => array(),
+            'std'         => false,
+            'value'       => false,
+            'placeholder' => '',
+            'readonly'    => false,
+            'faux'        => false,
+            'section'     => 'main',
+            'tab'         => 'general',
+            'type'        => 'text',
+        );
+    }
+
+    /**
+     * Sanitizes a setting's field.
+     *
+     * @param  array $setting The setting to sanitize.
+     * @return array
+     */
+    public function sanitize_setting( $setting ) {
 		
-		$setting          = wp_parse_args( $setting, $this->setting_defaults() );
-		$setting['value'] = wpinv_get_option( $setting['id'], $setting['std'] );
-		return $this->filter_setting( $setting );
-
-	}
-
-	/**
-	 * Get setting data.
-	 *
-	 * @since  2.0.0
-	 * @param string $setting_id Setting ID.
-	 * @return array|WP_Error
-	 */
-	public function get_setting( $setting_id ) {
-
-		if ( empty( $setting_id ) ) {
-			return new WP_Error( 'rest_setting_setting_invalid', __( 'Invalid setting.', 'invoicing' ), array( 'status' => 404 ) );
-		}
-
-		$settings  = $this->get_settings();
-
-		foreach ( $settings as $tabs ) {
-
-			foreach ( $tabs as $sections ) {
-
-				if ( isset( $sections[ $setting_id ] ) ) {
-					if ( ! $this->is_setting_type_valid( $sections[ $setting_id ]['type'] ) ) {
-						return new WP_Error( 'rest_setting_setting_type_invalid', __( 'Invalid setting type.', 'invoicing' ), array( 'status' => 404 ) );
-					}
-
-					return $sections[ $setting_id ];
-				}
-
-			}
-
-		}
-
-		return new WP_Error( 'rest_setting_setting_invalid', __( 'Invalid setting.', 'invoicing' ), array( 'status' => 404 ) );
-	}
-
-	/**
-	 * Get all tabs.
-	 *
-	 * @param  WP_REST_Request $request Request data.
-	 * @return array
-	 */
-	public function get_tabs( $request ) {
-		$tabs     = wpinv_get_settings_tabs();
-		$prepared = array();
-
-		foreach ( $tabs as $id => $tab ) {
-
-			$_request        = $request;
-			$_request['tab'] = sanitize_title( $id );
-			$data            = array(
-				'id'       => sanitize_title( $id ),
-				'label'    => sanitize_text_field( $tab ),
-				'sections' => $this->get_sections( $_request ),
-			);
-
-			$data     = $this->add_additional_fields_to_object( $data, $request );
-			$response = rest_ensure_response( $data );
-
-			if ( ! is_wp_error( $response ) ) {
-				$links = array(
-					'sections'   => array(
-						'href'   => rest_url( sprintf( '/%s/%s/%s', $this->namespace, $this->rest_base, $id ) ),
-					),
-					'collection' => array(
-						'href'   => rest_url( sprintf( '/%s/%s', $this->namespace, $this->rest_base ) ),
-					),
-				);
-				$response->add_links( $links );
-				$response = $this->prepare_response_for_collection( $response );
-			}
-
-			$prepared[] = $response;
-
-		}
-
-		return rest_ensure_response( $prepared );
-	}
-
-	/**
-	 * Get all sections.
-	 *
-	 * @param  WP_REST_Request $request Request data.
-	 * @return array
-	 */
-	public function get_sections( $request ) {
-
-		$tab      = sanitize_title( $request['tab'] );
-		$sections = wpinv_get_settings_tab_sections( $tab );
-		$prepared = array();
-
-		foreach ( $sections as $id => $section ) {
-
-			$data            = array(
-				'id'       => sanitize_title( $id ),
-				'label'    => sanitize_text_field( $section ),
-			);
-
-			$data     = $this->add_additional_fields_to_object( $data, $request );
-			$response = rest_ensure_response( $data );
-
-			if ( ! is_wp_error( $response ) ) {
-				$links = array(
-					'settings'   => array(
-						'href'   => rest_url( sprintf( '/%s/%s/%s/%s', $this->namespace, $this->rest_base, $tab, $id ) ),
-					),
-					'collection' => array(
-						'href'   => rest_url( sprintf( '/%s/%s/%s', $this->namespace, $this->rest_base, $tab ) ),
-					),
-					'tabs'       => array(
-						'href'   => rest_url( sprintf( '/%s/%s', $this->namespace, $this->rest_base ) ),
-					),
-				);
-				$response->add_links( $links );
-				$response = $this->prepare_response_for_collection( $response );
-			}
-
-			$prepared[] = $response;
-
-		}
-
-		return rest_ensure_response( $prepared );
-	}
-
-	/**
-	 * Get all settings.
-	 *
-	 * @return array
-	 */
-	public function get_settings() {
-
-		if ( empty( $this->settings ) ) {
-			$this->settings = wpinv_get_registered_settings();
-		}
-
-		return $this->settings;
-
-	}
-
-	/**
-	 * Boolean for if a setting type is a valid supported setting type.
-	 *
-	 * @since  2.0.0
-	 * @param  string $type Type.
-	 * @return bool
-	 */
-	public function is_setting_type_valid( $type ) {
-
-		return in_array(
-			$type, array(
-				'text',         // Validates with validate_setting_text_field.
-				'email',        // Validates with validate_setting_text_field.
-				'number',       // Validates with validate_setting_text_field.
-				'color',        // Validates with validate_setting_text_field.
-				'password',     // Validates with validate_setting_text_field.
-				'textarea',     // Validates with validate_setting_textarea_field.
-				'select',       // Validates with validate_setting_select_field.
-				'multiselect',  // Validates with validate_setting_multiselect_field.
-				'radio',        // Validates with validate_setting_radio_field (-> validate_setting_select_field).
-				'checkbox',     // Validates with validate_setting_checkbox_field.
-				'header',       // Validates with validate_setting_text_field.
-			)
-		);
-
-	}
-
-	/**
-	 * Get the settings schema, conforming to JSON Schema.
-	 *
-	 * @return array
-	 */
-	public function get_item_schema() {
-
-		// Maybe retrieve the schema from cache.
-		if ( ! empty( $this->schema ) ) {
-			return $this->add_additional_fields_schema( $this->schema );
-		}
-
-		$schema = array(
-			'$schema'    => 'http://json-schema.org/draft-04/schema#',
-			'title'      => 'setting',
-			'type'       => 'object',
-			'properties' => array(
-				'id'          => array(
-					'description' => __( 'A unique identifier for the setting.', 'invoicing' ),
-					'type'        => 'string',
-					'arg_options' => array(
-						'sanitize_callback' => 'sanitize_title',
-					),
-					'context'     => array( 'view', 'edit' ),
-					'readonly'    => true,
-				),
-				'tab'         => array(
-					'description' => __( 'An identifier for the tab this setting belongs to.', 'invoicing' ),
-					'type'        => 'string',
-					'arg_options' => array(
-						'sanitize_callback' => 'sanitize_title',
-					),
-					'context'     => array( 'view', 'edit' ),
-					'readonly'    => true,
-				),
-				'section'     => array(
-					'description' => __( 'An identifier for the section this setting belongs to.', 'invoicing' ),
-					'type'        => 'string',
-					'arg_options' => array(
-						'sanitize_callback' => 'sanitize_title',
-					),
-					'context'     => array( 'view', 'edit' ),
-					'readonly'    => true,
-				),
-				'name'       => array(
-					'description' => __( 'A human readable label for the setting used in interfaces.', 'invoicing' ),
-					'type'        => 'string',
-					'arg_options' => array(
-						'sanitize_callback' => 'sanitize_text_field',
-					),
-					'context'     => array( 'view', 'edit' ),
-					'readonly'    => true,
-				),
-				'desc'        => array(
-					'description' => __( 'A human readable description for the setting used in interfaces.', 'invoicing' ),
-					'type'        => 'string',
-					'context'     => array( 'view', 'edit' ),
-					'readonly'    => true,
-				),
-				'value'       => array(
-					'description' => __( 'The current value of this setting.', 'invoicing' ),
-					'type'        => 'mixed',
-					'context'     => array( 'view', 'edit' ),
-				),
-				'default'     => array(
-					'description' => __( 'Default value for the setting.', 'invoicing' ),
-					'type'        => 'mixed',
-					'context'     => array( 'view', 'edit' ),
-					'readonly'    => true,
-				),
-				'placeholder' => array(
-					'description' => __( 'Placeholder text to be displayed in text inputs.', 'invoicing' ),
-					'type'        => 'string',
-					'arg_options' => array(
-						'sanitize_callback' => 'sanitize_text_field',
-					),
-					'context'     => array( 'view', 'edit' ),
-					'readonly'    => true,
-				),
-				'type'        => array(
-					'description' => __( 'Type of setting.', 'invoicing' ),
-					'type'        => 'string',
-					'arg_options' => array(
-						'sanitize_callback' => 'sanitize_text_field',
-					),
-					'context'     => array( 'view', 'edit' ),
-					'enum'        => array( 'text', 'email', 'number', 'color', 'password', 'textarea', 'select', 'multiselect', 'radio', 'image_width', 'checkbox', 'raw_html' ),
-					'readonly'    => true,
-				),
-				'options'     => array(
-					'description' => __( 'Array of options (key value pairs) for inputs such as select, multiselect, and radio buttons.', 'invoicing' ),
-					'type'        => 'object',
-					'context'     => array( 'view', 'edit' ),
-					'readonly'    => true,
-				),
-				'readonly'        => array(
-					'description' => __( 'Whether or not this setting is readonly', 'invoicing' ),
-					'type'        => 'string',
-					'context'     => array( 'view' ),
-					'readonly'    => true,
-				),
-				'faux'            => array(
-					'description' => __( 'Whether or not this setting is readonly/faux', 'invoicing' ),
-					'type'        => 'string',
-					'context'     => array( 'view' ),
-					'readonly'    => true,
-				),
-			),
-		);
-
-		// Filters the settings schema for the REST API.
+        $setting          = wp_parse_args( $setting, $this->setting_defaults() );
+        $setting['value'] = wpinv_get_option( $setting['id'], $setting['std'] );
+        return $this->filter_setting( $setting );
+
+    }
+
+    /**
+     * Get setting data.
+     *
+     * @since  2.0.0
+     * @param string $setting_id Setting ID.
+     * @return array|WP_Error
+     */
+    public function get_setting( $setting_id ) {
+
+        if ( empty( $setting_id ) ) {
+            return new WP_Error( 'rest_setting_setting_invalid', __( 'Invalid setting.', 'invoicing' ), array( 'status' => 404 ) );
+        }
+
+        $settings  = $this->get_settings();
+
+        foreach ( $settings as $tabs ) {
+
+            foreach ( $tabs as $sections ) {
+
+                if ( isset( $sections[ $setting_id ] ) ) {
+                    if ( ! $this->is_setting_type_valid( $sections[ $setting_id ]['type'] ) ) {
+                        return new WP_Error( 'rest_setting_setting_type_invalid', __( 'Invalid setting type.', 'invoicing' ), array( 'status' => 404 ) );
+                    }
+
+                    return $sections[ $setting_id ];
+                }
+
+            }
+
+        }
+
+        return new WP_Error( 'rest_setting_setting_invalid', __( 'Invalid setting.', 'invoicing' ), array( 'status' => 404 ) );
+    }
+
+    /**
+     * Get all tabs.
+     *
+     * @param  WP_REST_Request $request Request data.
+     * @return array
+     */
+    public function get_tabs( $request ) {
+        $tabs     = wpinv_get_settings_tabs();
+        $prepared = array();
+
+        foreach ( $tabs as $id => $tab ) {
+
+            $_request        = $request;
+            $_request['tab'] = sanitize_title( $id );
+            $data            = array(
+                'id'       => sanitize_title( $id ),
+                'label'    => sanitize_text_field( $tab ),
+                'sections' => $this->get_sections( $_request ),
+            );
+
+            $data     = $this->add_additional_fields_to_object( $data, $request );
+            $response = rest_ensure_response( $data );
+
+            if ( ! is_wp_error( $response ) ) {
+                $links = array(
+                    'sections'   => array(
+                        'href'   => rest_url( sprintf( '/%s/%s/%s', $this->namespace, $this->rest_base, $id ) ),
+                    ),
+                    'collection' => array(
+                        'href'   => rest_url( sprintf( '/%s/%s', $this->namespace, $this->rest_base ) ),
+                    ),
+                );
+                $response->add_links( $links );
+                $response = $this->prepare_response_for_collection( $response );
+            }
+
+            $prepared[] = $response;
+
+        }
+
+        return rest_ensure_response( $prepared );
+    }
+
+    /**
+     * Get all sections.
+     *
+     * @param  WP_REST_Request $request Request data.
+     * @return array
+     */
+    public function get_sections( $request ) {
+
+        $tab      = sanitize_title( $request['tab'] );
+        $sections = wpinv_get_settings_tab_sections( $tab );
+        $prepared = array();
+
+        foreach ( $sections as $id => $section ) {
+
+            $data            = array(
+                'id'       => sanitize_title( $id ),
+                'label'    => sanitize_text_field( $section ),
+            );
+
+            $data     = $this->add_additional_fields_to_object( $data, $request );
+            $response = rest_ensure_response( $data );
+
+            if ( ! is_wp_error( $response ) ) {
+                $links = array(
+                    'settings'   => array(
+                        'href'   => rest_url( sprintf( '/%s/%s/%s/%s', $this->namespace, $this->rest_base, $tab, $id ) ),
+                    ),
+                    'collection' => array(
+                        'href'   => rest_url( sprintf( '/%s/%s/%s', $this->namespace, $this->rest_base, $tab ) ),
+                    ),
+                    'tabs'       => array(
+                        'href'   => rest_url( sprintf( '/%s/%s', $this->namespace, $this->rest_base ) ),
+                    ),
+                );
+                $response->add_links( $links );
+                $response = $this->prepare_response_for_collection( $response );
+            }
+
+            $prepared[] = $response;
+
+        }
+
+        return rest_ensure_response( $prepared );
+    }
+
+    /**
+     * Get all settings.
+     *
+     * @return array
+     */
+    public function get_settings() {
+
+        if ( empty( $this->settings ) ) {
+            $this->settings = wpinv_get_registered_settings();
+        }
+
+        return $this->settings;
+
+    }
+
+    /**
+     * Boolean for if a setting type is a valid supported setting type.
+     *
+     * @since  2.0.0
+     * @param  string $type Type.
+     * @return bool
+     */
+    public function is_setting_type_valid( $type ) {
+
+        return in_array(
+            $type, array(
+                'text',         // Validates with validate_setting_text_field.
+                'email',        // Validates with validate_setting_text_field.
+                'number',       // Validates with validate_setting_text_field.
+                'color',        // Validates with validate_setting_text_field.
+                'password',     // Validates with validate_setting_text_field.
+                'textarea',     // Validates with validate_setting_textarea_field.
+                'select',       // Validates with validate_setting_select_field.
+                'multiselect',  // Validates with validate_setting_multiselect_field.
+                'radio',        // Validates with validate_setting_radio_field (-> validate_setting_select_field).
+                'checkbox',     // Validates with validate_setting_checkbox_field.
+                'header',       // Validates with validate_setting_text_field.
+            )
+        );
+
+    }
+
+    /**
+     * Get the settings schema, conforming to JSON Schema.
+     *
+     * @return array
+     */
+    public function get_item_schema() {
+
+        // Maybe retrieve the schema from cache.
+        if ( ! empty( $this->schema ) ) {
+            return $this->add_additional_fields_schema( $this->schema );
+        }
+
+        $schema = array(
+            '$schema'    => 'http://json-schema.org/draft-04/schema#',
+            'title'      => 'setting',
+            'type'       => 'object',
+            'properties' => array(
+                'id'          => array(
+                    'description' => __( 'A unique identifier for the setting.', 'invoicing' ),
+                    'type'        => 'string',
+                    'arg_options' => array(
+                        'sanitize_callback' => 'sanitize_title',
+                    ),
+                    'context'     => array( 'view', 'edit' ),
+                    'readonly'    => true,
+                ),
+                'tab'         => array(
+                    'description' => __( 'An identifier for the tab this setting belongs to.', 'invoicing' ),
+                    'type'        => 'string',
+                    'arg_options' => array(
+                        'sanitize_callback' => 'sanitize_title',
+                    ),
+                    'context'     => array( 'view', 'edit' ),
+                    'readonly'    => true,
+                ),
+                'section'     => array(
+                    'description' => __( 'An identifier for the section this setting belongs to.', 'invoicing' ),
+                    'type'        => 'string',
+                    'arg_options' => array(
+                        'sanitize_callback' => 'sanitize_title',
+                    ),
+                    'context'     => array( 'view', 'edit' ),
+                    'readonly'    => true,
+                ),
+                'name'       => array(
+                    'description' => __( 'A human readable label for the setting used in interfaces.', 'invoicing' ),
+                    'type'        => 'string',
+                    'arg_options' => array(
+                        'sanitize_callback' => 'sanitize_text_field',
+                    ),
+                    'context'     => array( 'view', 'edit' ),
+                    'readonly'    => true,
+                ),
+                'desc'        => array(
+                    'description' => __( 'A human readable description for the setting used in interfaces.', 'invoicing' ),
+                    'type'        => 'string',
+                    'context'     => array( 'view', 'edit' ),
+                    'readonly'    => true,
+                ),
+                'value'       => array(
+                    'description' => __( 'The current value of this setting.', 'invoicing' ),
+                    'type'        => 'mixed',
+                    'context'     => array( 'view', 'edit' ),
+                ),
+                'default'     => array(
+                    'description' => __( 'Default value for the setting.', 'invoicing' ),
+                    'type'        => 'mixed',
+                    'context'     => array( 'view', 'edit' ),
+                    'readonly'    => true,
+                ),
+                'placeholder' => array(
+                    'description' => __( 'Placeholder text to be displayed in text inputs.', 'invoicing' ),
+                    'type'        => 'string',
+                    'arg_options' => array(
+                        'sanitize_callback' => 'sanitize_text_field',
+                    ),
+                    'context'     => array( 'view', 'edit' ),
+                    'readonly'    => true,
+                ),
+                'type'        => array(
+                    'description' => __( 'Type of setting.', 'invoicing' ),
+                    'type'        => 'string',
+                    'arg_options' => array(
+                        'sanitize_callback' => 'sanitize_text_field',
+                    ),
+                    'context'     => array( 'view', 'edit' ),
+                    'enum'        => array( 'text', 'email', 'number', 'color', 'password', 'textarea', 'select', 'multiselect', 'radio', 'image_width', 'checkbox', 'raw_html' ),
+                    'readonly'    => true,
+                ),
+                'options'     => array(
+                    'description' => __( 'Array of options (key value pairs) for inputs such as select, multiselect, and radio buttons.', 'invoicing' ),
+                    'type'        => 'object',
+                    'context'     => array( 'view', 'edit' ),
+                    'readonly'    => true,
+                ),
+                'readonly'        => array(
+                    'description' => __( 'Whether or not this setting is readonly', 'invoicing' ),
+                    'type'        => 'string',
+                    'context'     => array( 'view' ),
+                    'readonly'    => true,
+                ),
+                'faux'            => array(
+                    'description' => __( 'Whether or not this setting is readonly/faux', 'invoicing' ),
+                    'type'        => 'string',
+                    'context'     => array( 'view' ),
+                    'readonly'    => true,
+                ),
+            ),
+        );
+
+        // Filters the settings schema for the REST API.
         $schema = apply_filters( 'getpaid_rest_settings_schema', $schema );
 
-		// Cache the settings schema.
-		$this->schema = $schema;
-
-		return $this->add_additional_fields_schema( $this->schema );
-
-	}
-
-	/**
-	 * Validate a text value for a text based setting.
-	 *
-	 * @since 2.0.0
-	 * @param string $value Value.
-	 * @param array  $setting Setting.
-	 * @return string
-	 */
-	public function validate_setting_text_field( $value ) {
-		$value = is_null( $value ) ? '' : $value;
-		return wp_kses_post( trim( stripslashes( $value ) ) );
-	}
-
-	/**
-	 * Validate select based settings.
-	 *
-	 * @since 2.0.0
-	 * @param string $value Value.
-	 * @param array  $setting Setting.
-	 * @return string|WP_Error
-	 */
-	public function validate_setting_select_field( $value, $setting ) {
-		if ( array_key_exists( $value, $setting['options'] ) ) {
-			return $value;
-		} else {
-			return new WP_Error( 'rest_setting_value_invalid', __( 'An invalid setting value was passed.', 'invoicing' ), array( 'status' => 400 ) );
-		}
-	}
-
-	/**
-	 * Validate multiselect based settings.
-	 *
-	 * @since 2.0.0
-	 * @param array $values Values.
-	 * @param array $setting Setting.
-	 * @return array|WP_Error
-	 */
-	public function validate_setting_multiselect_field( $values, $setting ) {
-		if ( empty( $values ) ) {
-			return array();
-		}
-
-		if ( ! is_array( $values ) ) {
-			return new WP_Error( 'rest_setting_value_invalid', __( 'An invalid setting value was passed.', 'invoicing' ), array( 'status' => 400 ) );
-		}
-
-		$final_values = array();
-		foreach ( $values as $value ) {
-			if ( array_key_exists( $value, $setting['options'] ) ) {
-				$final_values[] = $value;
-			}
-		}
-
-		return $final_values;
-	}
-
-	/**
-	 * Validate radio based settings.
-	 *
-	 * @since 2.0.0
-	 * @param string $value Value.
-	 * @param array  $setting Setting.
-	 * @return string|WP_Error
-	 */
-	public function validate_setting_radio_field( $value, $setting ) {
-		return $this->validate_setting_select_field( $value, $setting );
-	}
-
-	/**
-	 * Validate checkbox based settings.
-	 *
-	 * @since 2.0.0
-	 * @param string $value Value.
-	 * @return int
-	 */
-	public function validate_setting_checkbox_field( $value ) {
-		return (int) ! empty( $value );
-	}
-
-	/**
-	 * Validate textarea based settings.
-	 *
-	 * @since 2.0.0
-	 * @param string $value Value.
-	 * @return string
-	 */
-	public function validate_setting_textarea_field( $value ) {
-		$value = is_null( $value ) ? '' : $value;
-		return wp_kses(
-			trim( stripslashes( $value ) ),
-			array_merge(
-				array(
-					'iframe' => array(
-						'src'   => true,
-						'style' => true,
-						'id'    => true,
-						'class' => true,
-					),
-				),
-				wp_kses_allowed_html( 'post' )
-			)
-		);
-	}
+        // Cache the settings schema.
+        $this->schema = $schema;
+
+        return $this->add_additional_fields_schema( $this->schema );
+
+    }
+
+    /**
+     * Validate a text value for a text based setting.
+     *
+     * @since 2.0.0
+     * @param string $value Value.
+     * @param array  $setting Setting.
+     * @return string
+     */
+    public function validate_setting_text_field( $value ) {
+        $value = is_null( $value ) ? '' : $value;
+        return wp_kses_post( trim( stripslashes( $value ) ) );
+    }
+
+    /**
+     * Validate select based settings.
+     *
+     * @since 2.0.0
+     * @param string $value Value.
+     * @param array  $setting Setting.
+     * @return string|WP_Error
+     */
+    public function validate_setting_select_field( $value, $setting ) {
+        if ( array_key_exists( $value, $setting['options'] ) ) {
+            return $value;
+        } else {
+            return new WP_Error( 'rest_setting_value_invalid', __( 'An invalid setting value was passed.', 'invoicing' ), array( 'status' => 400 ) );
+        }
+    }
+
+    /**
+     * Validate multiselect based settings.
+     *
+     * @since 2.0.0
+     * @param array $values Values.
+     * @param array $setting Setting.
+     * @return array|WP_Error
+     */
+    public function validate_setting_multiselect_field( $values, $setting ) {
+        if ( empty( $values ) ) {
+            return array();
+        }
+
+        if ( ! is_array( $values ) ) {
+            return new WP_Error( 'rest_setting_value_invalid', __( 'An invalid setting value was passed.', 'invoicing' ), array( 'status' => 400 ) );
+        }
+
+        $final_values = array();
+        foreach ( $values as $value ) {
+            if ( array_key_exists( $value, $setting['options'] ) ) {
+                $final_values[] = $value;
+            }
+        }
+
+        return $final_values;
+    }
+
+    /**
+     * Validate radio based settings.
+     *
+     * @since 2.0.0
+     * @param string $value Value.
+     * @param array  $setting Setting.
+     * @return string|WP_Error
+     */
+    public function validate_setting_radio_field( $value, $setting ) {
+        return $this->validate_setting_select_field( $value, $setting );
+    }
+
+    /**
+     * Validate checkbox based settings.
+     *
+     * @since 2.0.0
+     * @param string $value Value.
+     * @return int
+     */
+    public function validate_setting_checkbox_field( $value ) {
+        return (int) ! empty( $value );
+    }
+
+    /**
+     * Validate textarea based settings.
+     *
+     * @since 2.0.0
+     * @param string $value Value.
+     * @return string
+     */
+    public function validate_setting_textarea_field( $value ) {
+        $value = is_null( $value ) ? '' : $value;
+        return wp_kses(
+            trim( stripslashes( $value ) ),
+            array_merge(
+                array(
+                    'iframe' => array(
+                        'src'   => true,
+                        'style' => true,
+                        'id'    => true,
+                        'class' => true,
+                    ),
+                ),
+                wp_kses_allowed_html( 'post' )
+            )
+        );
+    }
 
 }

Spacing +184 added lines, -184 removed lines

@@ -9,7 +9,7 @@ 
  * @since   2.0.0
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * GetPaid REST Setting controller class.
@@ -39,7 +39,7 @@ 
 	 *
 	 * @see register_rest_route()
 	 */
-	public function register_namespace_routes( $namespace ) {
+	public function register_namespace_routes($namespace) {
 
 		// List all registered tabs.
 		register_rest_route(
@@ -48,8 +48,8 @@ 
 			array(
 				array(
 					'methods'             => WP_REST_Server::READABLE,
-					'callback'            => array( $this, 'get_tabs' ),
-					'permission_callback' => array( $this, 'get_items_permissions_check' ),
+					'callback'            => array($this, 'get_tabs'),
+					'permission_callback' => array($this, 'get_items_permissions_check'),
 				),
 				'schema' => '__return_empty_array',
 			)
@@ -62,23 +62,23 @@ 
 			array(
 				'args'   => array(
 					'id'    => array(
-						'description' => __( 'Unique identifier for the setting.', 'invoicing' ),
+						'description' => __('Unique identifier for the setting.', 'invoicing'),
 						'type'        => 'string',
 						'required'    => true,
 					),
 				),
 				array(
 					'methods'             => WP_REST_Server::READABLE,
-					'callback'            => array( $this, 'get_item' ),
-					'permission_callback' => array( $this, 'get_items_permissions_check' ),
+					'callback'            => array($this, 'get_item'),
+					'permission_callback' => array($this, 'get_items_permissions_check'),
 				),
 				array(
 					'methods'             => WP_REST_Server::EDITABLE,
-					'callback'            => array( $this, 'update_item' ),
-					'permission_callback' => array( $this, 'update_items_permissions_check' ),
-					'args'                => $this->get_endpoint_args_for_item_schema( WP_REST_Server::EDITABLE ),
+					'callback'            => array($this, 'update_item'),
+					'permission_callback' => array($this, 'update_items_permissions_check'),
+					'args'                => $this->get_endpoint_args_for_item_schema(WP_REST_Server::EDITABLE),
 				),
-				'schema' => array( $this, 'get_public_item_schema' ),
+				'schema' => array($this, 'get_public_item_schema'),
 			)
 		);
 
@@ -89,16 +89,16 @@ 
 			array(
 				'args'   => array(
 					'tab'    => array(
-						'description' => __( 'Unique identifier for the tab whose sections should be retrieved.', 'invoicing' ),
+						'description' => __('Unique identifier for the tab whose sections should be retrieved.', 'invoicing'),
 						'type'        => 'string',
 						'required'    => true,
-						'enum'        => array_keys( wpinv_get_settings_tabs() ),
+						'enum'        => array_keys(wpinv_get_settings_tabs()),
 					),
 				),
 				array(
 					'methods'             => WP_REST_Server::READABLE,
-					'callback'            => array( $this, 'get_sections' ),
-					'permission_callback' => array( $this, 'get_items_permissions_check' ),
+					'callback'            => array($this, 'get_sections'),
+					'permission_callback' => array($this, 'get_items_permissions_check'),
 				),
 				'schema' => '__return_empty_array',
 			)
@@ -111,23 +111,23 @@ 
 			array(
 				'args'   => array(
 					'tab'    => array(
-						'description' => __( 'Unique identifier for the tab whose settings should be retrieved.', 'invoicing' ),
+						'description' => __('Unique identifier for the tab whose settings should be retrieved.', 'invoicing'),
 						'type'        => 'string',
 						'required'    => true,
-						'enum'        => array_keys( wpinv_get_settings_tabs() ),
+						'enum'        => array_keys(wpinv_get_settings_tabs()),
 					),
 					'section'    => array(
-						'description' => __( 'The section in the tab whose settings should be retrieved.', 'invoicing' ),
+						'description' => __('The section in the tab whose settings should be retrieved.', 'invoicing'),
 						'type'        => 'string',
 						'required'    => true,
 					),
 				),
 				array(
 					'methods'             => WP_REST_Server::READABLE,
-					'callback'            => array( $this, 'get_items' ),
-					'permission_callback' => array( $this, 'get_items_permissions_check' ),
+					'callback'            => array($this, 'get_items'),
+					'permission_callback' => array($this, 'get_items_permissions_check'),
 				),
-				'schema' => array( $this, 'get_public_item_schema' ),
+				'schema' => array($this, 'get_public_item_schema'),
 			)
 		);
 
@@ -137,17 +137,17 @@ 
 			array(
 				'args'   => array(
 					'id'              => array(
-						'description' => __( 'Setting ID.', 'invoicing' ),
+						'description' => __('Setting ID.', 'invoicing'),
 						'type'        => 'string',
 					),
 				),
 				array(
 					'methods'             => WP_REST_Server::EDITABLE,
-					'callback'            => array( $this, 'batch_items' ),
-					'permission_callback' => array( $this, 'batch_items_permissions_check' ),
-					'args'                => $this->get_endpoint_args_for_item_schema( WP_REST_Server::EDITABLE ),
+					'callback'            => array($this, 'batch_items'),
+					'permission_callback' => array($this, 'batch_items_permissions_check'),
+					'args'                => $this->get_endpoint_args_for_item_schema(WP_REST_Server::EDITABLE),
 				),
-				'schema' => array( $this, 'get_public_batch_schema' ),
+				'schema' => array($this, 'get_public_batch_schema'),
 			)
 		);
 
@@ -160,34 +160,34 @@ 
 	 * @param  WP_REST_Request $request Request data.
 	 * @return WP_Error|WP_REST_Response
 	 */
-	public function get_items( $request ) {
+	public function get_items($request) {
 
 		$settings = $this->get_settings();
 
-		if ( ! isset( $settings[ $request['tab'] ] ) ) {
-			return new WP_Error( 'rest_invalid_tab', __( 'Invalid tab.', 'invoicing' ), array( 'status' => 400 ) );
+		if (!isset($settings[$request['tab']])) {
+			return new WP_Error('rest_invalid_tab', __('Invalid tab.', 'invoicing'), array('status' => 400));
 		}
 
-		if ( ! isset( $settings[ $request['tab'] ][ $request['section'] ] ) ) {
-			return new WP_Error( 'rest_invalid_section', __( 'Invalid section.', 'invoicing' ), array( 'status' => 400 ) );
+		if (!isset($settings[$request['tab']][$request['section']])) {
+			return new WP_Error('rest_invalid_section', __('Invalid section.', 'invoicing'), array('status' => 400));
 		}
 
-		$settings = $settings[ $request['tab'] ][ $request['section'] ];
+		$settings = $settings[$request['tab']][$request['section']];
 		$prepared = array();
 
-		foreach ( $settings as $setting ) {
+		foreach ($settings as $setting) {
 
-			$setting      = $this->sanitize_setting( $setting );
-			$setting_data = $this->prepare_item_for_response( $setting, $request );
-			$setting_data = $this->prepare_response_for_collection( $setting_data );
+			$setting      = $this->sanitize_setting($setting);
+			$setting_data = $this->prepare_item_for_response($setting, $request);
+			$setting_data = $this->prepare_response_for_collection($setting_data);
 
-			if ( $this->is_setting_type_valid( $setting['type'] ) ) {
-				$prepared[]   = $setting_data;
+			if ($this->is_setting_type_valid($setting['type'])) {
+				$prepared[] = $setting_data;
 			}
 
 		}
 
-		return rest_ensure_response( $prepared );
+		return rest_ensure_response($prepared);
 	}
 
 	/**
@@ -197,16 +197,16 @@ 
 	 * @param  WP_REST_Request $request Request data.
 	 * @return WP_Error|WP_REST_Response
 	 */
-	public function get_item( $request ) {
-		$setting  = $this->get_setting( $request['id'] );
+	public function get_item($request) {
+		$setting = $this->get_setting($request['id']);
 
-		if ( is_wp_error( $setting ) ) {
+		if (is_wp_error($setting)) {
 			return $setting;
 		}
 
-		$setting  = $this->sanitize_setting( $setting );
-		$response = $this->prepare_item_for_response( $setting, $request );
-		return rest_ensure_response( $response );
+		$setting  = $this->sanitize_setting($setting);
+		$response = $this->prepare_item_for_response($setting, $request);
+		return rest_ensure_response($response);
 	}
 
 	/**
@@ -216,29 +216,29 @@ 
 	 * @param  WP_REST_Request $request Request data.
 	 * @return WP_Error|WP_REST_Response
 	 */
-	public function update_item( $request ) {
-		$setting = $this->get_setting( $request['id'] );
+	public function update_item($request) {
+		$setting = $this->get_setting($request['id']);
 
-		if ( is_wp_error( $setting ) ) {
+		if (is_wp_error($setting)) {
 			return $setting;
 		}
 
-		if ( is_callable( array( $this, 'validate_setting_' . $setting['type'] . '_field' ) ) ) {
-			$value = $this->{'validate_setting_' . $setting['type'] . '_field'}( $request['value'], $setting );
+		if (is_callable(array($this, 'validate_setting_' . $setting['type'] . '_field'))) {
+			$value = $this->{'validate_setting_' . $setting['type'] . '_field'}($request['value'], $setting);
 		} else {
-			$value = $this->validate_setting_text_field( $request['value'], $setting );
+			$value = $this->validate_setting_text_field($request['value'], $setting);
 		}
 
-		if ( is_wp_error( $value ) ) {
+		if (is_wp_error($value)) {
 			return $value;
 		}
 
-		wpinv_update_option( $request['id'], $value );
+		wpinv_update_option($request['id'], $value);
 		$setting['value'] = $value;
-		$setting          = $this->sanitize_setting( $setting );
-		$response         = $this->prepare_item_for_response( $setting, $request );
+		$setting          = $this->sanitize_setting($setting);
+		$response         = $this->prepare_item_for_response($setting, $request);
 
-		return rest_ensure_response( $response );
+		return rest_ensure_response($response);
 	}
 
 	/**
@@ -248,9 +248,9 @@ 
 	 * @param WP_REST_Request $request Full data about the request.
 	 * @return WP_Error|boolean
 	 */
-	public function get_items_permissions_check( $request ) {
-		if ( ! wpinv_current_user_can_manage_invoicing() ) {
-			return new WP_Error( 'rest_cannot_view', __( 'Sorry, you cannot list resources.', 'invoicing' ), array( 'status' => rest_authorization_required_code() ) );
+	public function get_items_permissions_check($request) {
+		if (!wpinv_current_user_can_manage_invoicing()) {
+			return new WP_Error('rest_cannot_view', __('Sorry, you cannot list resources.', 'invoicing'), array('status' => rest_authorization_required_code()));
 		}
 
 		return true;
@@ -263,9 +263,9 @@ 
 	 * @param WP_REST_Request $request Full data about the request.
 	 * @return WP_Error|boolean
 	 */
-	public function update_items_permissions_check( $request ) {
-		if ( ! wpinv_current_user_can_manage_invoicing() ) {
-			return new WP_Error( 'rest_cannot_edit', __( 'Sorry, you cannot edit this resource.', 'invoicing' ), array( 'status' => rest_authorization_required_code() ) );
+	public function update_items_permissions_check($request) {
+		if (!wpinv_current_user_can_manage_invoicing()) {
+			return new WP_Error('rest_cannot_edit', __('Sorry, you cannot edit this resource.', 'invoicing'), array('status' => rest_authorization_required_code()));
 		}
 
 		return true;
@@ -278,8 +278,8 @@ 
 	 *
 	 * @return boolean|WP_Error
 	 */
-	public function batch_items_permissions_check( $request ) {
-		return wpinv_current_user_can_manage_invoicing() ? true : new WP_Error( 'rest_cannot_batch', __( 'Sorry, you are not allowed to batch manipulate this resource.', 'invoicing' ), array( 'status' => rest_authorization_required_code() ) );
+	public function batch_items_permissions_check($request) {
+		return wpinv_current_user_can_manage_invoicing() ? true : new WP_Error('rest_cannot_batch', __('Sorry, you are not allowed to batch manipulate this resource.', 'invoicing'), array('status' => rest_authorization_required_code()));
 	}
 
 	/**
@@ -288,14 +288,14 @@ 
 	 * @param string $setting_id Setting ID.
 	 * @return array Links for the given setting.
 	 */
-	protected function prepare_links( $setting_id ) {
+	protected function prepare_links($setting_id) {
 
 		$links = array(
 			'self'       => array(
-				'href'   => rest_url( sprintf( '/%s/%s/setting/%s', $this->namespace, $this->rest_base, $setting_id ) ),
+				'href'   => rest_url(sprintf('/%s/%s/setting/%s', $this->namespace, $this->rest_base, $setting_id)),
 			),
 			'collection' => array(
-				'href'   => rest_url( sprintf( '/%s/%s', $this->namespace, $this->rest_base ) ),
+				'href'   => rest_url(sprintf('/%s/%s', $this->namespace, $this->rest_base)),
 			),
 		);
 
@@ -310,14 +310,14 @@ 
 	 * @param WP_REST_Request $request Request object.
 	 * @return WP_REST_Response $response Response data.
 	 */
-	public function prepare_item_for_response( $item, $request ) {
-		$context = empty( $request['context'] ) ? 'view' : $request['context'];
-		$data    = $this->add_additional_fields_to_object( $item, $request );
-		$data    = $this->filter_response_by_context( $data, $context );
+	public function prepare_item_for_response($item, $request) {
+		$context = empty($request['context']) ? 'view' : $request['context'];
+		$data    = $this->add_additional_fields_to_object($item, $request);
+		$data    = $this->filter_response_by_context($data, $context);
 
-		$response = rest_ensure_response( $data );
+		$response = rest_ensure_response($data);
 
-		$response->add_links( $this->prepare_links( $item['id'] ) );
+		$response->add_links($this->prepare_links($item['id']));
 
 		return $response;
 	}
@@ -330,10 +330,10 @@ 
 	 * @param  array $setting Setting.
 	 * @return array
 	 */
-	public function filter_setting( $setting ) {
+	public function filter_setting($setting) {
 		return array_intersect_key(
 			$setting,
-			array_flip( array_filter( array_keys( $setting ), array( $this, 'allowed_setting_keys' ) ) )
+			array_flip(array_filter(array_keys($setting), array($this, 'allowed_setting_keys')))
 		);
 	}
 
@@ -343,8 +343,8 @@ 
 	 * @param  string $key Key to check.
 	 * @return boolean
 	 */
-	public function allowed_setting_keys( $key ) {
-		return in_array( $key, array_keys( $this->setting_defaults() ), true );
+	public function allowed_setting_keys($key) {
+		return in_array($key, array_keys($this->setting_defaults()), true);
 	}
 
 	/**
@@ -376,11 +376,11 @@ 
 	 * @param  array $setting The setting to sanitize.
 	 * @return array
 	 */
-	public function sanitize_setting( $setting ) {
+	public function sanitize_setting($setting) {
 		
-		$setting          = wp_parse_args( $setting, $this->setting_defaults() );
-		$setting['value'] = wpinv_get_option( $setting['id'], $setting['std'] );
-		return $this->filter_setting( $setting );
+		$setting          = wp_parse_args($setting, $this->setting_defaults());
+		$setting['value'] = wpinv_get_option($setting['id'], $setting['std']);
+		return $this->filter_setting($setting);
 
 	}
 
@@ -391,31 +391,31 @@ 
 	 * @param string $setting_id Setting ID.
 	 * @return array|WP_Error
 	 */
-	public function get_setting( $setting_id ) {
+	public function get_setting($setting_id) {
 
-		if ( empty( $setting_id ) ) {
-			return new WP_Error( 'rest_setting_setting_invalid', __( 'Invalid setting.', 'invoicing' ), array( 'status' => 404 ) );
+		if (empty($setting_id)) {
+			return new WP_Error('rest_setting_setting_invalid', __('Invalid setting.', 'invoicing'), array('status' => 404));
 		}
 
-		$settings  = $this->get_settings();
+		$settings = $this->get_settings();
 
-		foreach ( $settings as $tabs ) {
+		foreach ($settings as $tabs) {
 
-			foreach ( $tabs as $sections ) {
+			foreach ($tabs as $sections) {
 
-				if ( isset( $sections[ $setting_id ] ) ) {
-					if ( ! $this->is_setting_type_valid( $sections[ $setting_id ]['type'] ) ) {
-						return new WP_Error( 'rest_setting_setting_type_invalid', __( 'Invalid setting type.', 'invoicing' ), array( 'status' => 404 ) );
+				if (isset($sections[$setting_id])) {
+					if (!$this->is_setting_type_valid($sections[$setting_id]['type'])) {
+						return new WP_Error('rest_setting_setting_type_invalid', __('Invalid setting type.', 'invoicing'), array('status' => 404));
 					}
 
-					return $sections[ $setting_id ];
+					return $sections[$setting_id];
 				}
 
 			}
 
 		}
 
-		return new WP_Error( 'rest_setting_setting_invalid', __( 'Invalid setting.', 'invoicing' ), array( 'status' => 404 ) );
+		return new WP_Error('rest_setting_setting_invalid', __('Invalid setting.', 'invoicing'), array('status' => 404));
 	}
 
 	/**
@@ -424,41 +424,41 @@ 
 	 * @param  WP_REST_Request $request Request data.
 	 * @return array
 	 */
-	public function get_tabs( $request ) {
+	public function get_tabs($request) {
 		$tabs     = wpinv_get_settings_tabs();
 		$prepared = array();
 
-		foreach ( $tabs as $id => $tab ) {
+		foreach ($tabs as $id => $tab) {
 
 			$_request        = $request;
-			$_request['tab'] = sanitize_title( $id );
+			$_request['tab'] = sanitize_title($id);
 			$data            = array(
-				'id'       => sanitize_title( $id ),
-				'label'    => sanitize_text_field( $tab ),
-				'sections' => $this->get_sections( $_request ),
+				'id'       => sanitize_title($id),
+				'label'    => sanitize_text_field($tab),
+				'sections' => $this->get_sections($_request),
 			);
 
-			$data     = $this->add_additional_fields_to_object( $data, $request );
-			$response = rest_ensure_response( $data );
+			$data     = $this->add_additional_fields_to_object($data, $request);
+			$response = rest_ensure_response($data);
 
-			if ( ! is_wp_error( $response ) ) {
+			if (!is_wp_error($response)) {
 				$links = array(
 					'sections'   => array(
-						'href'   => rest_url( sprintf( '/%s/%s/%s', $this->namespace, $this->rest_base, $id ) ),
+						'href'   => rest_url(sprintf('/%s/%s/%s', $this->namespace, $this->rest_base, $id)),
 					),
 					'collection' => array(
-						'href'   => rest_url( sprintf( '/%s/%s', $this->namespace, $this->rest_base ) ),
+						'href'   => rest_url(sprintf('/%s/%s', $this->namespace, $this->rest_base)),
 					),
 				);
-				$response->add_links( $links );
-				$response = $this->prepare_response_for_collection( $response );
+				$response->add_links($links);
+				$response = $this->prepare_response_for_collection($response);
 			}
 
 			$prepared[] = $response;
 
 		}
 
-		return rest_ensure_response( $prepared );
+		return rest_ensure_response($prepared);
 	}
 
 	/**
@@ -467,43 +467,43 @@ 
 	 * @param  WP_REST_Request $request Request data.
 	 * @return array
 	 */
-	public function get_sections( $request ) {
+	public function get_sections($request) {
 
-		$tab      = sanitize_title( $request['tab'] );
-		$sections = wpinv_get_settings_tab_sections( $tab );
+		$tab      = sanitize_title($request['tab']);
+		$sections = wpinv_get_settings_tab_sections($tab);
 		$prepared = array();
 
-		foreach ( $sections as $id => $section ) {
+		foreach ($sections as $id => $section) {
 
-			$data            = array(
-				'id'       => sanitize_title( $id ),
-				'label'    => sanitize_text_field( $section ),
+			$data = array(
+				'id'       => sanitize_title($id),
+				'label'    => sanitize_text_field($section),
 			);
 
-			$data     = $this->add_additional_fields_to_object( $data, $request );
-			$response = rest_ensure_response( $data );
+			$data     = $this->add_additional_fields_to_object($data, $request);
+			$response = rest_ensure_response($data);
 
-			if ( ! is_wp_error( $response ) ) {
+			if (!is_wp_error($response)) {
 				$links = array(
 					'settings'   => array(
-						'href'   => rest_url( sprintf( '/%s/%s/%s/%s', $this->namespace, $this->rest_base, $tab, $id ) ),
+						'href'   => rest_url(sprintf('/%s/%s/%s/%s', $this->namespace, $this->rest_base, $tab, $id)),
 					),
 					'collection' => array(
-						'href'   => rest_url( sprintf( '/%s/%s/%s', $this->namespace, $this->rest_base, $tab ) ),
+						'href'   => rest_url(sprintf('/%s/%s/%s', $this->namespace, $this->rest_base, $tab)),
 					),
 					'tabs'       => array(
-						'href'   => rest_url( sprintf( '/%s/%s', $this->namespace, $this->rest_base ) ),
+						'href'   => rest_url(sprintf('/%s/%s', $this->namespace, $this->rest_base)),
 					),
 				);
-				$response->add_links( $links );
-				$response = $this->prepare_response_for_collection( $response );
+				$response->add_links($links);
+				$response = $this->prepare_response_for_collection($response);
 			}
 
 			$prepared[] = $response;
 
 		}
 
-		return rest_ensure_response( $prepared );
+		return rest_ensure_response($prepared);
 	}
 
 	/**
@@ -513,7 +513,7 @@ 
 	 */
 	public function get_settings() {
 
-		if ( empty( $this->settings ) ) {
+		if (empty($this->settings)) {
 			$this->settings = wpinv_get_registered_settings();
 		}
 
@@ -528,21 +528,21 @@ 
 	 * @param  string $type Type.
 	 * @return bool
 	 */
-	public function is_setting_type_valid( $type ) {
+	public function is_setting_type_valid($type) {
 
 		return in_array(
 			$type, array(
-				'text',         // Validates with validate_setting_text_field.
-				'email',        // Validates with validate_setting_text_field.
-				'number',       // Validates with validate_setting_text_field.
-				'color',        // Validates with validate_setting_text_field.
-				'password',     // Validates with validate_setting_text_field.
-				'textarea',     // Validates with validate_setting_textarea_field.
-				'select',       // Validates with validate_setting_select_field.
-				'multiselect',  // Validates with validate_setting_multiselect_field.
-				'radio',        // Validates with validate_setting_radio_field (-> validate_setting_select_field).
-				'checkbox',     // Validates with validate_setting_checkbox_field.
-				'header',       // Validates with validate_setting_text_field.
+				'text', // Validates with validate_setting_text_field.
+				'email', // Validates with validate_setting_text_field.
+				'number', // Validates with validate_setting_text_field.
+				'color', // Validates with validate_setting_text_field.
+				'password', // Validates with validate_setting_text_field.
+				'textarea', // Validates with validate_setting_textarea_field.
+				'select', // Validates with validate_setting_select_field.
+				'multiselect', // Validates with validate_setting_multiselect_field.
+				'radio', // Validates with validate_setting_radio_field (-> validate_setting_select_field).
+				'checkbox', // Validates with validate_setting_checkbox_field.
+				'header', // Validates with validate_setting_text_field.
 			)
 		);
 
@@ -556,8 +556,8 @@ 
 	public function get_item_schema() {
 
 		// Maybe retrieve the schema from cache.
-		if ( ! empty( $this->schema ) ) {
-			return $this->add_additional_fields_schema( $this->schema );
+		if (!empty($this->schema)) {
+			return $this->add_additional_fields_schema($this->schema);
 		}
 
 		$schema = array(
@@ -566,105 +566,105 @@ 
 			'type'       => 'object',
 			'properties' => array(
 				'id'          => array(
-					'description' => __( 'A unique identifier for the setting.', 'invoicing' ),
+					'description' => __('A unique identifier for the setting.', 'invoicing'),
 					'type'        => 'string',
 					'arg_options' => array(
 						'sanitize_callback' => 'sanitize_title',
 					),
-					'context'     => array( 'view', 'edit' ),
+					'context'     => array('view', 'edit'),
 					'readonly'    => true,
 				),
 				'tab'         => array(
-					'description' => __( 'An identifier for the tab this setting belongs to.', 'invoicing' ),
+					'description' => __('An identifier for the tab this setting belongs to.', 'invoicing'),
 					'type'        => 'string',
 					'arg_options' => array(
 						'sanitize_callback' => 'sanitize_title',
 					),
-					'context'     => array( 'view', 'edit' ),
+					'context'     => array('view', 'edit'),
 					'readonly'    => true,
 				),
 				'section'     => array(
-					'description' => __( 'An identifier for the section this setting belongs to.', 'invoicing' ),
+					'description' => __('An identifier for the section this setting belongs to.', 'invoicing'),
 					'type'        => 'string',
 					'arg_options' => array(
 						'sanitize_callback' => 'sanitize_title',
 					),
-					'context'     => array( 'view', 'edit' ),
+					'context'     => array('view', 'edit'),
 					'readonly'    => true,
 				),
 				'name'       => array(
-					'description' => __( 'A human readable label for the setting used in interfaces.', 'invoicing' ),
+					'description' => __('A human readable label for the setting used in interfaces.', 'invoicing'),
 					'type'        => 'string',
 					'arg_options' => array(
 						'sanitize_callback' => 'sanitize_text_field',
 					),
-					'context'     => array( 'view', 'edit' ),
+					'context'     => array('view', 'edit'),
 					'readonly'    => true,
 				),
 				'desc'        => array(
-					'description' => __( 'A human readable description for the setting used in interfaces.', 'invoicing' ),
+					'description' => __('A human readable description for the setting used in interfaces.', 'invoicing'),
 					'type'        => 'string',
-					'context'     => array( 'view', 'edit' ),
+					'context'     => array('view', 'edit'),
 					'readonly'    => true,
 				),
 				'value'       => array(
-					'description' => __( 'The current value of this setting.', 'invoicing' ),
+					'description' => __('The current value of this setting.', 'invoicing'),
 					'type'        => 'mixed',
-					'context'     => array( 'view', 'edit' ),
+					'context'     => array('view', 'edit'),
 				),
 				'default'     => array(
-					'description' => __( 'Default value for the setting.', 'invoicing' ),
+					'description' => __('Default value for the setting.', 'invoicing'),
 					'type'        => 'mixed',
-					'context'     => array( 'view', 'edit' ),
+					'context'     => array('view', 'edit'),
 					'readonly'    => true,
 				),
 				'placeholder' => array(
-					'description' => __( 'Placeholder text to be displayed in text inputs.', 'invoicing' ),
+					'description' => __('Placeholder text to be displayed in text inputs.', 'invoicing'),
 					'type'        => 'string',
 					'arg_options' => array(
 						'sanitize_callback' => 'sanitize_text_field',
 					),
-					'context'     => array( 'view', 'edit' ),
+					'context'     => array('view', 'edit'),
 					'readonly'    => true,
 				),
 				'type'        => array(
-					'description' => __( 'Type of setting.', 'invoicing' ),
+					'description' => __('Type of setting.', 'invoicing'),
 					'type'        => 'string',
 					'arg_options' => array(
 						'sanitize_callback' => 'sanitize_text_field',
 					),
-					'context'     => array( 'view', 'edit' ),
-					'enum'        => array( 'text', 'email', 'number', 'color', 'password', 'textarea', 'select', 'multiselect', 'radio', 'image_width', 'checkbox', 'raw_html' ),
+					'context'     => array('view', 'edit'),
+					'enum'        => array('text', 'email', 'number', 'color', 'password', 'textarea', 'select', 'multiselect', 'radio', 'image_width', 'checkbox', 'raw_html'),
 					'readonly'    => true,
 				),
 				'options'     => array(
-					'description' => __( 'Array of options (key value pairs) for inputs such as select, multiselect, and radio buttons.', 'invoicing' ),
+					'description' => __('Array of options (key value pairs) for inputs such as select, multiselect, and radio buttons.', 'invoicing'),
 					'type'        => 'object',
-					'context'     => array( 'view', 'edit' ),
+					'context'     => array('view', 'edit'),
 					'readonly'    => true,
 				),
 				'readonly'        => array(
-					'description' => __( 'Whether or not this setting is readonly', 'invoicing' ),
+					'description' => __('Whether or not this setting is readonly', 'invoicing'),
 					'type'        => 'string',
-					'context'     => array( 'view' ),
+					'context'     => array('view'),
 					'readonly'    => true,
 				),
 				'faux'            => array(
-					'description' => __( 'Whether or not this setting is readonly/faux', 'invoicing' ),
+					'description' => __('Whether or not this setting is readonly/faux', 'invoicing'),
 					'type'        => 'string',
-					'context'     => array( 'view' ),
+					'context'     => array('view'),
 					'readonly'    => true,
 				),
 			),
 		);
 
 		// Filters the settings schema for the REST API.
-        $schema = apply_filters( 'getpaid_rest_settings_schema', $schema );
+        $schema = apply_filters('getpaid_rest_settings_schema', $schema);
 
 		// Cache the settings schema.
 		$this->schema = $schema;
 
-		return $this->add_additional_fields_schema( $this->schema );
+		return $this->add_additional_fields_schema($this->schema);
 
 	}
 
@@ -676,9 +676,9 @@ 
 	 * @param array  $setting Setting.
 	 * @return string
 	 */
-	public function validate_setting_text_field( $value ) {
-		$value = is_null( $value ) ? '' : $value;
-		return wp_kses_post( trim( stripslashes( $value ) ) );
+	public function validate_setting_text_field($value) {
+		$value = is_null($value) ? '' : $value;
+		return wp_kses_post(trim(stripslashes($value)));
 	}
 
 	/**
@@ -689,11 +689,11 @@ 
 	 * @param array  $setting Setting.
 	 * @return string|WP_Error
 	 */
-	public function validate_setting_select_field( $value, $setting ) {
-		if ( array_key_exists( $value, $setting['options'] ) ) {
+	public function validate_setting_select_field($value, $setting) {
+		if (array_key_exists($value, $setting['options'])) {
 			return $value;
 		} else {
-			return new WP_Error( 'rest_setting_value_invalid', __( 'An invalid setting value was passed.', 'invoicing' ), array( 'status' => 400 ) );
+			return new WP_Error('rest_setting_value_invalid', __('An invalid setting value was passed.', 'invoicing'), array('status' => 400));
 		}
 	}
 
@@ -705,18 +705,18 @@ 
 	 * @param array $setting Setting.
 	 * @return array|WP_Error
 	 */
-	public function validate_setting_multiselect_field( $values, $setting ) {
-		if ( empty( $values ) ) {
+	public function validate_setting_multiselect_field($values, $setting) {
+		if (empty($values)) {
 			return array();
 		}
 
-		if ( ! is_array( $values ) ) {
-			return new WP_Error( 'rest_setting_value_invalid', __( 'An invalid setting value was passed.', 'invoicing' ), array( 'status' => 400 ) );
+		if (!is_array($values)) {
+			return new WP_Error('rest_setting_value_invalid', __('An invalid setting value was passed.', 'invoicing'), array('status' => 400));
 		}
 
 		$final_values = array();
-		foreach ( $values as $value ) {
-			if ( array_key_exists( $value, $setting['options'] ) ) {
+		foreach ($values as $value) {
+			if (array_key_exists($value, $setting['options'])) {
 				$final_values[] = $value;
 			}
 		}
@@ -732,8 +732,8 @@ 
 	 * @param array  $setting Setting.
 	 * @return string|WP_Error
 	 */
-	public function validate_setting_radio_field( $value, $setting ) {
-		return $this->validate_setting_select_field( $value, $setting );
+	public function validate_setting_radio_field($value, $setting) {
+		return $this->validate_setting_select_field($value, $setting);
 	}
 
 	/**
@@ -743,8 +743,8 @@ 
 	 * @param string $value Value.
 	 * @return int
 	 */
-	public function validate_setting_checkbox_field( $value ) {
-		return (int) ! empty( $value );
+	public function validate_setting_checkbox_field($value) {
+		return (int) !empty($value);
 	}
 
 	/**
@@ -754,10 +754,10 @@ 
 	 * @param string $value Value.
 	 * @return string
 	 */
-	public function validate_setting_textarea_field( $value ) {
-		$value = is_null( $value ) ? '' : $value;
+	public function validate_setting_textarea_field($value) {
+		$value = is_null($value) ? '' : $value;
 		return wp_kses(
-			trim( stripslashes( $value ) ),
+			trim(stripslashes($value)),
 			array_merge(
 				array(
 					'iframe' => array(
@@ -767,7 +767,7 @@ 
 						'class' => true,
 					),
 				),
-				wp_kses_allowed_html( 'post' )
+				wp_kses_allowed_html('post')
 			)
 		);
 	}

includes/admin/register-settings.php

Spacing +368 added lines, -368 removed lines

@@ -6,7 +6,7 @@ 
  * @since   1.0.0
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * Retrieves all default settings.
@@ -16,13 +16,13 @@ 
 function wpinv_get_settings() {
     $defaults = array();
 
-    foreach ( array_values( wpinv_get_registered_settings() ) as $tab_settings ) {
+    foreach (array_values(wpinv_get_registered_settings()) as $tab_settings) {
 
-        foreach ( array_values( $tab_settings ) as $section_settings ) {
+        foreach (array_values($tab_settings) as $section_settings) {
 
-            foreach ( $section_settings as $key => $setting ) {
-                if ( isset( $setting['std'] ) ) {
-                    $defaults[ $key ] = $setting['std'];
+            foreach ($section_settings as $key => $setting) {
+                if (isset($setting['std'])) {
+                    $defaults[$key] = $setting['std'];
                 }
             }
 
@@ -43,12 +43,12 @@ 
     global $wpinv_options;
 
     // Try fetching the saved options.
-    if ( ! is_array( $wpinv_options ) ) {
-        $wpinv_options = get_option( 'wpinv_settings' );
+    if (!is_array($wpinv_options)) {
+        $wpinv_options = get_option('wpinv_settings');
     }
 
     // If that fails, don't fetch the default settings to prevent a loop.
-    if ( ! is_array( $wpinv_options ) ) {
+    if (!is_array($wpinv_options)) {
         $wpinv_options = array();
     }
 
@@ -62,13 +62,13 @@ 
  * @param mixed $default The default value to use if the setting has not been set.
  * @return mixed
  */
-function wpinv_get_option( $key = '', $default = false ) {
+function wpinv_get_option($key = '', $default = false) {
 
     $options = wpinv_get_options();
-    $value   = isset( $options[ $key ] ) ? $options[ $key ] : $default;
-    $value   = apply_filters( 'wpinv_get_option', $value, $key, $default );
+    $value   = isset($options[$key]) ? $options[$key] : $default;
+    $value   = apply_filters('wpinv_get_option', $value, $key, $default);
 
-    return apply_filters( 'wpinv_get_option_' . $key, $value, $key, $default );
+    return apply_filters('wpinv_get_option_' . $key, $value, $key, $default);
 }
 
 /**
@@ -77,11 +77,11 @@ 
  * @param array $options the new options.
  * @return bool
  */
-function wpinv_update_options( $options ) {
+function wpinv_update_options($options) {
     global $wpinv_options;
 
     // update the option.
-    if ( is_array( $options ) && update_option( 'wpinv_settings', $options ) ) {
+    if (is_array($options) && update_option('wpinv_settings', $options)) {
         $wpinv_options = $options;
         return true;
     }
@@ -96,24 +96,24 @@ 
  * @param mixed $value The setting value.
  * @return bool
  */
-function wpinv_update_option( $key = '', $value = false ) {
+function wpinv_update_option($key = '', $value = false) {
 
     // If no key, exit.
-    if ( empty( $key ) ) {
+    if (empty($key)) {
         return false;
     }
 
     // Maybe delete the option instead.
-    if ( is_null( $value ) ) {
-        return wpinv_delete_option( $key );
+    if (is_null($value)) {
+        return wpinv_delete_option($key);
     }
 
     // Prepare the new options.
     $options         = wpinv_get_options();
-    $options[ $key ] = apply_filters( 'wpinv_update_option', $value, $key );
+    $options[$key] = apply_filters('wpinv_update_option', $value, $key);
 
     // Save the new options.
-    return wpinv_update_options( $options );
+    return wpinv_update_options($options);
 
 }
 
@@ -123,18 +123,18 @@ 
  * @param string $key the setting key.
  * @return bool
  */
-function wpinv_delete_option( $key = '' ) {
+function wpinv_delete_option($key = '') {
 
     // If no key, exit
-    if ( empty( $key ) ) {
+    if (empty($key)) {
         return false;
     }
 
     $options = wpinv_get_options();
 
-    if ( isset( $options[ $key ] ) ) {
-        unset( $options[ $key ] );
-        return wpinv_update_options( $options );
+    if (isset($options[$key])) {
+        unset($options[$key]);
+        return wpinv_update_options($options);
     }
 
     return true;
@@ -148,14 +148,14 @@ 
 function wpinv_register_settings() {
 
     // Loop through all tabs.
-    foreach ( wpinv_get_registered_settings() as $tab => $sections ) {
+    foreach (wpinv_get_registered_settings() as $tab => $sections) {
 
         // In each tab, loop through sections.
-        foreach ( $sections as $section => $settings ) {
+        foreach ($sections as $section => $settings) {
 
             // Check for backwards compatibility
-            $section_tabs = wpinv_get_settings_tab_sections( $tab );
-            if ( ! is_array( $section_tabs ) || ! array_key_exists( $section, $section_tabs ) ) {
+            $section_tabs = wpinv_get_settings_tab_sections($tab);
+            if (!is_array($section_tabs) || !array_key_exists($section, $section_tabs)) {
                 $section = 'main';
                 $settings = $sections;
             }
@@ -168,9 +168,9 @@ 
                 'wpinv_settings_' . $tab . '_' . $section
             );
 
-            foreach ( $settings as $option ) {
-                if ( ! empty( $option['id'] ) ) {
-                    wpinv_register_settings_option( $tab, $section, $option );
+            foreach ($settings as $option) {
+                if (!empty($option['id'])) {
+                    wpinv_register_settings_option($tab, $section, $option);
                 }
             }
 
@@ -178,9 +178,9 @@ 
     }
 
     // Creates our settings in the options table.
-    register_setting( 'wpinv_settings', 'wpinv_settings', 'wpinv_settings_sanitize' );
+    register_setting('wpinv_settings', 'wpinv_settings', 'wpinv_settings_sanitize');
 }
-add_action( 'admin_init', 'wpinv_register_settings' );
+add_action('admin_init', 'wpinv_register_settings');
 
 /**
  * Register a single settings option.
@@ -190,47 +190,47 @@ 
  * @param string $option
  * 
  */
-function wpinv_register_settings_option( $tab, $section, $option ) {
+function wpinv_register_settings_option($tab, $section, $option) {
 
-    $name    = isset( $option['name'] ) ? $option['name'] : '';
+    $name    = isset($option['name']) ? $option['name'] : '';
     $cb      = "wpinv_{$option['type']}_callback";
     $section = "wpinv_settings_{$tab}_$section";
 
-	if ( isset( $option['desc'] ) && ! empty( $option['help-tip'] ) ) {
-		$tip   = wpinv_clean( $option['desc'] );
+	if (isset($option['desc']) && !empty($option['help-tip'])) {
+		$tip   = wpinv_clean($option['desc']);
 		$name .= "<span class='dashicons dashicons-editor-help wpi-help-tip' title='$tip'></span>";
-		unset( $option['desc'] );
+		unset($option['desc']);
 	}
 
     // Loop through all tabs.
     add_settings_field(
         'wpinv_settings[' . $option['id'] . ']',
         $name,
-        function_exists( $cb ) ? $cb : 'wpinv_missing_callback',
+        function_exists($cb) ? $cb : 'wpinv_missing_callback',
         $section,
         $section,
         array(
             'section'     => $section,
-            'id'          => isset( $option['id'] )          ? $option['id']          : uniqid( 'wpinv-' ),
-            'desc'        => isset( $option['desc'] )        ? $option['desc']        : '',
+            'id'          => isset($option['id']) ? $option['id'] : uniqid('wpinv-'),
+            'desc'        => isset($option['desc']) ? $option['desc'] : '',
             'name'        => $name,
-            'size'        => isset( $option['size'] )        ? $option['size']        : null,
-            'options'     => isset( $option['options'] )     ? $option['options']     : '',
-            'selected'    => isset( $option['selected'] )    ? $option['selected']    : null,
-            'std'         => isset( $option['std'] )         ? $option['std']         : '',
-            'min'         => isset( $option['min'] )         ? $option['min']         : 0,
-            'max'         => isset( $option['max'] )         ? $option['max']         : 999999,
-            'step'        => isset( $option['step'] )        ? $option['step']        : 1,
-            'placeholder' => isset( $option['placeholder'] ) ? $option['placeholder'] : null,
-            'allow_blank' => isset( $option['allow_blank'] ) ? $option['allow_blank'] : true,
-            'readonly'    => isset( $option['readonly'] )    ? $option['readonly']    : false,
-            'faux'        => isset( $option['faux'] )        ? $option['faux']        : false,
-            'onchange'    => isset( $option['onchange'] )   ? $option['onchange']     : '',
-            'custom'      => isset( $option['custom'] )     ? $option['custom']       : '',
-			'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) $option['rows'] : 5,
+            'size'        => isset($option['size']) ? $option['size'] : null,
+            'options'     => isset($option['options']) ? $option['options'] : '',
+            'selected'    => isset($option['selected']) ? $option['selected'] : null,
+            'std'         => isset($option['std']) ? $option['std'] : '',
+            'min'         => isset($option['min']) ? $option['min'] : 0,
+            'max'         => isset($option['max']) ? $option['max'] : 999999,
+            'step'        => isset($option['step']) ? $option['step'] : 1,
+            'placeholder' => isset($option['placeholder']) ? $option['placeholder'] : null,
+            'allow_blank' => isset($option['allow_blank']) ? $option['allow_blank'] : true,
+            'readonly'    => isset($option['readonly']) ? $option['readonly'] : false,
+            'faux'        => isset($option['faux']) ? $option['faux'] : false,
+            'onchange'    => isset($option['onchange']) ? $option['onchange'] : '',
+            'custom'      => isset($option['custom']) ? $option['custom'] : '',
+			'class'       => isset($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,
         )
     );
 
@@ -242,7 +242,7 @@ 
  * @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')));
 }
 
 /**
@@ -251,7 +251,7 @@ 
  * @return array
  */
 function getpaid_get_integration_settings() {
-    return apply_filters( 'getpaid_integration_settings', array() );
+    return apply_filters('getpaid_integration_settings', array());
 }
 
 /**
@@ -259,139 +259,139 @@ 
  * 
  * @return array
  */
-function wpinv_settings_sanitize( $input = array() ) {
+function wpinv_settings_sanitize($input = array()) {
 
     $wpinv_options = wpinv_get_options();
 
-    if ( empty( wp_get_raw_referer() ) ) {
+    if (empty(wp_get_raw_referer())) {
         return $input;
     }
 
-    wp_parse_str( wp_get_raw_referer(), $referrer );
+    wp_parse_str(wp_get_raw_referer(), $referrer);
 
     $settings = wpinv_get_registered_settings();
-    $tab      = isset( $referrer['tab'] ) ? $referrer['tab'] : 'general';
-    $section  = isset( $referrer['section'] ) ? $referrer['section'] : 'main';
+    $tab      = isset($referrer['tab']) ? $referrer['tab'] : 'general';
+    $section  = isset($referrer['section']) ? $referrer['section'] : 'main';
 
     $input = $input ? $input : array();
-    $input = apply_filters( 'wpinv_settings_tab_' . $tab . '_sanitize', $input );
-    $input = apply_filters( 'wpinv_settings_' . $tab . '-' . $section . '_sanitize', $input );
+    $input = apply_filters('wpinv_settings_tab_' . $tab . '_sanitize', $input);
+    $input = apply_filters('wpinv_settings_' . $tab . '-' . $section . '_sanitize', $input);
 
     // Loop through each setting being saved and pass it through a sanitization filter
-    foreach ( $input as $key => $value ) {
+    foreach ($input as $key => $value) {
 
         // Get the setting type (checkbox, select, etc)
-        $type = isset( $settings[ $tab ][$section][ $key ]['type'] ) ? $settings[ $tab ][$section][ $key ]['type'] : false;
+        $type = isset($settings[$tab][$section][$key]['type']) ? $settings[$tab][$section][$key]['type'] : false;
 
-        if ( $type ) {
+        if ($type) {
             // Field type specific filter
-            $input[$key] = apply_filters( 'wpinv_settings_sanitize_' . $type, $value, $key );
+            $input[$key] = apply_filters('wpinv_settings_sanitize_' . $type, $value, $key);
         }
 
         // 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 ] );
+		$input[$key] = apply_filters("wpinv_settings_sanitize_$key", $input[$key]);
     }
 
     // Loop through the whitelist and unset any that are empty for the tab being saved
-    $main_settings    = $section == 'main' ? $settings[ $tab ] : array(); // Check for extensions that aren't using new sections
-    $section_settings = ! empty( $settings[ $tab ][ $section ] ) ? $settings[ $tab ][ $section ] : array();
+    $main_settings    = $section == 'main' ? $settings[$tab] : array(); // Check for extensions that aren't using new sections
+    $section_settings = !empty($settings[$tab][$section]) ? $settings[$tab][$section] : array();
 
-    $found_settings = array_merge( $main_settings, $section_settings );
+    $found_settings = array_merge($main_settings, $section_settings);
 
-    if ( ! empty( $found_settings ) ) {
-        foreach ( $found_settings as $key => $value ) {
+    if (!empty($found_settings)) {
+        foreach ($found_settings as $key => $value) {
 
             // settings used to have numeric keys, now they have keys that match the option ID. This ensures both methods work
-            if ( is_numeric( $key ) ) {
+            if (is_numeric($key)) {
                 $key = $value['id'];
             }
 
-            if ( ! isset( $input[ $key ] ) && isset( $wpinv_options[ $key ] ) ) {
-                unset( $wpinv_options[ $key ] );
+            if (!isset($input[$key]) && isset($wpinv_options[$key])) {
+                unset($wpinv_options[$key]);
             }
         }
     }
 
     // Merge our new settings with the existing
-    $output = array_merge( $wpinv_options, $input );
+    $output = array_merge($wpinv_options, $input);
 
-    add_settings_error( 'wpinv-notices', '', __( 'Settings updated.', 'invoicing' ), 'updated' );
+    add_settings_error('wpinv-notices', '', __('Settings updated.', 'invoicing'), 'updated');
 
     return $output;
 }
 
-function wpinv_settings_sanitize_misc_accounting( $input ) {
+function wpinv_settings_sanitize_misc_accounting($input) {
 
-    if ( ! wpinv_current_user_can_manage_invoicing() ) {
+    if (!wpinv_current_user_can_manage_invoicing()) {
         return $input;
     }
 
-    if( ! empty( $input['enable_sequential'] ) && !wpinv_get_option( 'enable_sequential' ) ) {
+    if (!empty($input['enable_sequential']) && !wpinv_get_option('enable_sequential')) {
         // Shows an admin notice about upgrading previous order numbers
-        getpaid_session()->set( 'upgrade_sequential', '1' );
+        getpaid_session()->set('upgrade_sequential', '1');
     }
 
     return $input;
 }
-add_filter( 'wpinv_settings_misc-accounting_sanitize', 'wpinv_settings_sanitize_misc_accounting' );
+add_filter('wpinv_settings_misc-accounting_sanitize', 'wpinv_settings_sanitize_misc_accounting');
 
-function wpinv_settings_sanitize_tax_rates( $input ) {
-    if( ! wpinv_current_user_can_manage_invoicing() ) {
+function wpinv_settings_sanitize_tax_rates($input) {
+    if (!wpinv_current_user_can_manage_invoicing()) {
         return $input;
     }
 
-    $new_rates = ! empty( $_POST['tax_rates'] ) ? array_values( $_POST['tax_rates'] ) : array();
+    $new_rates = !empty($_POST['tax_rates']) ? array_values($_POST['tax_rates']) : array();
     $tax_rates = array();
 
-    foreach ( $new_rates as $rate ) {
+    foreach ($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'] );
+		$rate['rate']    = wpinv_sanitize_amount($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 );
+    update_option('wpinv_tax_rates', $tax_rates);
 
     return $input;
 }
-add_filter( 'wpinv_settings_taxes-rates_sanitize', 'wpinv_settings_sanitize_tax_rates' );
+add_filter('wpinv_settings_taxes-rates_sanitize', 'wpinv_settings_sanitize_tax_rates');
 
-function wpinv_sanitize_text_field( $input ) {
-    return trim( $input );
+function wpinv_sanitize_text_field($input) {
+    return trim($input);
 }
-add_filter( 'wpinv_settings_sanitize_text', 'wpinv_sanitize_text_field' );
+add_filter('wpinv_settings_sanitize_text', 'wpinv_sanitize_text_field');
 
 function wpinv_get_settings_tabs() {
     $tabs             = array();
-    $tabs['general']  = __( 'General', 'invoicing' );
-    $tabs['gateways'] = __( 'Payment Gateways', 'invoicing' );
-    $tabs['taxes']    = __( 'Taxes', 'invoicing' );
-	$tabs['emails']   = __( 'Emails', 'invoicing' );
+    $tabs['general']  = __('General', 'invoicing');
+    $tabs['gateways'] = __('Payment Gateways', 'invoicing');
+    $tabs['taxes']    = __('Taxes', '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' );
-    $tabs['tools']    = __( 'Tools', 'invoicing' );
+    $tabs['privacy']  = __('Privacy', 'invoicing');
+    $tabs['misc']     = __('Misc', 'invoicing');
+    $tabs['tools']    = __('Tools', 'invoicing');
 
-    return apply_filters( 'wpinv_settings_tabs', $tabs );
+    return apply_filters('wpinv_settings_tabs', $tabs);
 }
 
-function wpinv_get_settings_tab_sections( $tab = false ) {
+function wpinv_get_settings_tab_sections($tab = false) {
     $tabs     = false;
     $sections = wpinv_get_registered_settings_sections();
 
-    if( $tab && ! empty( $sections[ $tab ] ) ) {
-        $tabs = $sections[ $tab ];
+    if ($tab && !empty($sections[$tab])) {
+        $tabs = $sections[$tab];
     }
 
     return $tabs;
@@ -400,91 +400,91 @@ 
 function wpinv_get_registered_settings_sections() {
     static $sections = false;
 
-    if ( false !== $sections ) {
+    if (false !== $sections) {
         return $sections;
     }
 
     $sections = array(
-        'general' => apply_filters( 'wpinv_settings_sections_general', array(
-            'main' => __( 'General Settings', 'invoicing' ),
-            'currency_section' => __( 'Currency Settings', 'invoicing' ),
-            'labels' => __( 'Label Texts', 'invoicing' ),
-        ) ),
-        'gateways' => apply_filters( 'wpinv_settings_sections_gateways', array(
-            'main' => __( 'Gateway Settings', 'invoicing' ),
-        ) ),
-        'taxes' => apply_filters( 'wpinv_settings_sections_taxes', array(
-            'main'  => __( 'Tax 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' ),
-
-        'privacy' => apply_filters( 'wpinv_settings_sections_privacy', array(
-            'main' => __( 'Privacy policy', 'invoicing' ),
-        ) ),
-        'misc' => apply_filters( 'wpinv_settings_sections_misc', array(
-            'main' => __( 'Miscellaneous', 'invoicing' ),
-            'custom-css' => __( 'Custom CSS', 'invoicing' ),
-        ) ),
-        'tools' => apply_filters( 'wpinv_settings_sections_tools', array(
-            'main' => __( 'Diagnostic Tools', 'invoicing' ),
-        ) ),
+        'general' => apply_filters('wpinv_settings_sections_general', array(
+            'main' => __('General Settings', 'invoicing'),
+            'currency_section' => __('Currency Settings', 'invoicing'),
+            'labels' => __('Label Texts', 'invoicing'),
+        )),
+        'gateways' => apply_filters('wpinv_settings_sections_gateways', array(
+            'main' => __('Gateway Settings', 'invoicing'),
+        )),
+        'taxes' => apply_filters('wpinv_settings_sections_taxes', array(
+            'main'  => __('Tax 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'),
+
+        'privacy' => apply_filters('wpinv_settings_sections_privacy', array(
+            'main' => __('Privacy policy', 'invoicing'),
+        )),
+        'misc' => apply_filters('wpinv_settings_sections_misc', array(
+            'main' => __('Miscellaneous', 'invoicing'),
+            'custom-css' => __('Custom CSS', 'invoicing'),
+        )),
+        'tools' => apply_filters('wpinv_settings_sections_tools', array(
+            'main' => __('Diagnostic Tools', 'invoicing'),
+        )),
     );
 
-    $sections = apply_filters( 'wpinv_settings_sections', $sections );
+    $sections = apply_filters('wpinv_settings_sections', $sections);
 
     return $sections;
 }
 
-function wpinv_get_pages( $with_slug = false, $default_label = NULL ) {
+function wpinv_get_pages($with_slug = false, $default_label = NULL) {
 	$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 $page ) {
+	if ($pages) {
+		foreach ($pages as $page) {
 			$title = $with_slug ? $page->post_title . ' (' . $page->post_name . ')' : $page->post_title;
-            $pages_options[ $page->ID ] = $title;
+            $pages_options[$page->ID] = $title;
 		}
 	}
 
 	return $pages_options;
 }
 
-function wpinv_header_callback( $args ) {
-	if ( !empty( $args['desc'] ) ) {
+function wpinv_header_callback($args) {
+	if (!empty($args['desc'])) {
         echo $args['desc'];
     }
 }
 
-function wpinv_hidden_callback( $args ) {
+function wpinv_hidden_callback($args) {
 	global $wpinv_options;
 
-	if ( isset( $args['set_value'] ) ) {
+	if (isset($args['set_value'])) {
 		$value = $args['set_value'];
-	} elseif ( isset( $wpinv_options[ $args['id'] ] ) ) {
-		$value = $wpinv_options[ $args['id'] ];
+	} elseif (isset($wpinv_options[$args['id']])) {
+		$value = $wpinv_options[$args['id']];
 	} else {
-		$value = isset( $args['std'] ) ? $args['std'] : '';
+		$value = isset($args['std']) ? $args['std'] : '';
 	}
 
-	if ( isset( $args['faux'] ) && true === $args['faux'] ) {
+	if (isset($args['faux']) && true === $args['faux']) {
 		$args['readonly'] = true;
-		$value = isset( $args['std'] ) ? $args['std'] : '';
+		$value = isset($args['std']) ? $args['std'] : '';
 		$name  = '';
 	} else {
-		$name = 'name="wpinv_settings[' . esc_attr( $args['id'] ) . ']"';
+		$name = 'name="wpinv_settings[' . esc_attr($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;
 }
@@ -492,61 +492,61 @@ 
 /**
  * Displays a checkbox settings callback.
  */
-function wpinv_checkbox_callback( $args ) {
+function wpinv_checkbox_callback($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">
-				<?php echo wp_kses_post( $args['desc'] ); ?>
+				<input id="wpinv-settings-<?php echo $id; ?>" name="wpinv_settings[<?php echo $id; ?>]" <?php checked(empty($std), false); ?> value="1" type="checkbox">
+				<?php echo wp_kses_post($args['desc']); ?>
 			</label>
 		</fieldset>
 	<?php
 }
 
-function wpinv_multicheck_callback( $args ) {
+function wpinv_multicheck_callback($args) {
 	
 	global $wpinv_options;
 
-	$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   = isset( $wpinv_options[ $args['id'] ] ) ? $wpinv_options[ $args['id'] ] : $std;
+		$std     = isset($args['std']) ? $args['std'] : array();
+		$value   = isset($wpinv_options[$args['id']]) ? $wpinv_options[$args['id']] : $std;
 
 		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, $value ) ) { 
+        foreach ($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>';
+			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( $args ) {
+function wpinv_payment_icons_callback($args) {
 	global $wpinv_options;
     
-    $sanitize_id = wpinv_sanitize_key( $args['id'] );
+    $sanitize_id = wpinv_sanitize_key($args['id']);
 
-	if ( ! empty( $args['options'] ) ) {
-		foreach( $args['options'] as $key => $option ) {
-            $sanitize_key = wpinv_sanitize_key( $key );
+	if (!empty($args['options'])) {
+		foreach ($args['options'] as $key => $option) {
+            $sanitize_key = wpinv_sanitize_key($key);
             
-			if( isset( $wpinv_options[$args['id']][$key] ) ) {
+			if (isset($wpinv_options[$args['id']][$key])) {
 				$enabled = $option;
 			} else {
 				$enabled = NULL;
@@ -554,109 +554,109 @@ 
 
 			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;';
+				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( $key ) . '" style="width:32px;height:24px;position:relative;top:6px;margin-right:5px;"/>';
+				if (wpinv_string_is_image_url($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 ) );
+					$card = strtolower(str_replace(' ', '', $option));
 
-					if ( has_filter( 'wpinv_accepted_payment_' . $card . '_image' ) ) {
-						$image = apply_filters( 'wpinv_accepted_payment_' . $card . '_image', '' );
+					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 );
+						$image       = wpinv_locate_template('images' . DIRECTORY_SEPARATOR . 'icons' . DIRECTORY_SEPARATOR . $card . '.gif', false);
 						$content_dir = WP_CONTENT_DIR;
 
-						if ( function_exists( 'wp_normalize_path' ) ) {
+						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 );
+							$image = wp_normalize_path($image);
+							$content_dir = wp_normalize_path($content_dir);
 						}
 
-						$image = str_replace( $content_dir, content_url(), $image );
+						$image = str_replace($content_dir, content_url(), $image);
 					}
 
-					echo '<img class="payment-icon" src="' . esc_url( $image ) . '" style="width:32px;height:24px;position:relative;top:6px;margin-right:5px;"/>';
+					echo '<img class="payment-icon" src="' . esc_url($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( $args['desc'] ) . '</p>';
+		echo '<p class="description" style="margin-top:16px;">' . wp_kses_post($args['desc']) . '</p>';
 	}
 }
 
 /**
  * Displays a radio settings field.
  */
-function wpinv_radio_callback( $args ) {
+function wpinv_radio_callback($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 => $option ) : ?>
+			<ul id="wpinv-settings-<?php echo esc_attr($args['id']); ?>" style="margin-top: 0;">
+				<?php foreach ($args['options'] as $key => $option) : ?>
 					<li>
 						<label>
-							<input name="wpinv_settings[<?php echo esc_attr( $args['id'] ); ?>]" <?php checked( $std, $key ); ?> value="<?php echo esc_attr( $key ); ?>" type="radio">
-							<?php echo wp_kses_post( $option ); ?>
+							<input name="wpinv_settings[<?php echo esc_attr($args['id']); ?>]" <?php checked($std, $key); ?> value="<?php echo esc_attr($key); ?>" type="radio">
+							<?php echo wp_kses_post($option); ?>
 						</label>
 					</li>
 				<?php endforeach; ?>
 			</ul>
 		</fieldset>
 	<?php
-	getpaid_settings_description_callback( $args );
+	getpaid_settings_description_callback($args);
 }
 
 /**
  * Displays a description if available.
  */
-function getpaid_settings_description_callback( $args ) {
+function getpaid_settings_description_callback($args) {
 
-	if ( ! empty( $args['desc'] ) ) {
-		$description = wp_kses_post( $args['desc'] );
+	if (!empty($args['desc'])) {
+		$description = wp_kses_post($args['desc']);
 		echo "<p class='description'>$description</p>";
 	}
 
 }
 
-function wpinv_gateways_callback( $args ) {
+function wpinv_gateways_callback($args) {
 	global $wpinv_options;
     
-    $sanitize_id = wpinv_sanitize_key( $args['id'] );
+    $sanitize_id = wpinv_sanitize_key($args['id']);
 
-	foreach ( $args['options'] as $key => $option ) :
-		$sanitize_key = wpinv_sanitize_key( $key );
+	foreach ($args['options'] as $key => $option) :
+		$sanitize_key = wpinv_sanitize_key($key);
         
-        if ( isset( $wpinv_options['gateways'][ $key ] ) )
+        if (isset($wpinv_options['gateways'][$key]))
 			$enabled = '1';
 		else
 			$enabled = null;
 
-		echo '<input name="wpinv_settings[' . esc_attr( $args['id'] ) . '][' . $sanitize_key . ']" id="wpinv_settings[' . $sanitize_id . '][' . $sanitize_key . ']" type="checkbox" value="1" ' . checked('1', $enabled, false) . '/>&nbsp;';
-		echo '<label for="wpinv_settings[' . $sanitize_id . '][' . $sanitize_key . ']">' . esc_html( $option['admin_label'] ) . '</label><br/>';
+		echo '<input name="wpinv_settings[' . esc_attr($args['id']) . '][' . $sanitize_key . ']" id="wpinv_settings[' . $sanitize_id . '][' . $sanitize_key . ']" type="checkbox" value="1" ' . checked('1', $enabled, false) . '/>&nbsp;';
+		echo '<label for="wpinv_settings[' . $sanitize_id . '][' . $sanitize_key . ']">' . esc_html($option['admin_label']) . '</label><br/>';
 	endforeach;
 }
 
 function wpinv_gateway_select_callback($args) {
 	global $wpinv_options;
     
-    $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']) : '';
 
-	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 ) {
-            $selected = selected( $key, $args['selected'], false );
+	foreach ($args['options'] as $key => $option) :
+		if (isset($args['selected']) && $args['selected'] !== null && $args['selected'] !== false) {
+            $selected = selected($key, $args['selected'], false);
         } else {
-            $selected = isset( $wpinv_options[ $args['id'] ] ) ? selected( $key, $wpinv_options[$args['id']], false ) : '';
+            $selected = isset($wpinv_options[$args['id']]) ? selected($key, $wpinv_options[$args['id']], false) : '';
         }
-		echo '<option value="' . wpinv_sanitize_key( $key ) . '"' . $selected . '>' . esc_html( $option['admin_label'] ) . '</option>';
+		echo '<option value="' . wpinv_sanitize_key($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 '<label for="wpinv_settings[' . $sanitize_id . ']"> ' . wp_kses_post($args['desc']) . '</label>';
 }
 
 /**
@@ -665,28 +665,28 @@ 
  * @param array $args
  * @return string
  */
-function wpinv_settings_attrs_helper( $args ) {
+function wpinv_settings_attrs_helper($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( $args['faux'] ) ) {
+	if (!empty($args['faux'])) {
 		$args['readonly'] = true;
 		$name             = '';
 	} else {
-		$value  = wpinv_get_option( $args['id'], $value );
+		$value  = wpinv_get_option($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 = '';
-    if ( ! empty( $args['onchange'] ) ) {
-        $onchange = ' onchange="' . esc_attr( $args['onchange'] ) . '"';
+    if (!empty($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";
@@ -695,11 +695,11 @@ 
 /**
  * Displays a text input settings callback.
  */
-function wpinv_text_callback( $args ) {
+function wpinv_text_callback($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%;">
@@ -713,14 +713,14 @@ 
 /**
  * Displays a number input settings callback.
  */
-function wpinv_number_callback( $args ) {
+function wpinv_number_callback($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%;">
@@ -731,47 +731,47 @@ 
 
 }
 
-function wpinv_textarea_callback( $args ) {
+function wpinv_textarea_callback($args) {
 	global $wpinv_options;
     
-    $sanitize_id = wpinv_sanitize_key( $args['id'] );
+    $sanitize_id = wpinv_sanitize_key($args['id']);
 
-	if ( isset( $wpinv_options[ $args['id'] ] ) ) {
-		$value = $wpinv_options[ $args['id'] ];
+	if (isset($wpinv_options[$args['id']])) {
+		$value = $wpinv_options[$args['id']];
 	} else {
-		$value = isset( $args['std'] ) ? $args['std'] : '';
+		$value = isset($args['std']) ? $args['std'] : '';
 	}
     
-    $size = ( isset( $args['size'] ) && ! is_null( $args['size'] ) ) ? $args['size'] : 'regular';
-    $class = ( isset( $args['class'] ) && ! is_null( $args['class'] ) ) ? $args['class'] : 'large-text';
+    $size = (isset($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;
 }
 
-function wpinv_password_callback( $args ) {
+function wpinv_password_callback($args) {
 	global $wpinv_options;
     
-    $sanitize_id = wpinv_sanitize_key( $args['id'] );
+    $sanitize_id = wpinv_sanitize_key($args['id']);
 
-	if ( isset( $wpinv_options[ $args['id'] ] ) ) {
-		$value = $wpinv_options[ $args['id'] ];
+	if (isset($wpinv_options[$args['id']])) {
+		$value = $wpinv_options[$args['id']];
 	} else {
-		$value = isset( $args['std'] ) ? $args['std'] : '';
+		$value = isset($args['std']) ? $args['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;
 }
 
 function wpinv_missing_callback($args) {
 	printf(
-		__( 'The callback function used for the %s setting is missing.', 'invoicing' ),
+		__('The callback function used for the %s setting is missing.', 'invoicing'),
 		'<strong>' . $args['id'] . '</strong>'
 	);
 }
@@ -779,20 +779,20 @@ 
 /**
  * Displays a number input settings callback.
  */
-function wpinv_select_callback( $args ) {
+function wpinv_select_callback($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 );
+	$desc   = wp_kses_post($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);
 
 	?>
 		<label style="width: 100%;">
 			<select <?php echo $attr; ?>>
-				<?php foreach ( $args['options'] as $option => $name ) : ?>
-					<option value="<?php echo esc_attr( $option ); ?>" <?php echo selected( is_array( $value ) ? in_array( "$option", $value, true ) : "$option" === $value ); ?>><?php echo wpinv_clean( $name ); ?></option>
-				<?php endforeach;?>
+				<?php foreach ($args['options'] as $option => $name) : ?>
+					<option value="<?php echo esc_attr($option); ?>" <?php echo selected(is_array($value) ? in_array("$option", $value, true) : "$option" === $value); ?>><?php echo wpinv_clean($name); ?></option>
+				<?php endforeach; ?>
 			</select>
 			<?php echo $desc; ?>
 		</label>
@@ -800,95 +800,95 @@ 
 
 }
 
-function wpinv_color_select_callback( $args ) {
+function wpinv_color_select_callback($args) {
 	global $wpinv_options;
     
-    $sanitize_id = wpinv_sanitize_key( $args['id'] );
+    $sanitize_id = wpinv_sanitize_key($args['id']);
 
-	if ( isset( $wpinv_options[ $args['id'] ] ) ) {
-		$value = $wpinv_options[ $args['id'] ];
+	if (isset($wpinv_options[$args['id']])) {
+		$value = $wpinv_options[$args['id']];
 	} else {
-		$value = isset( $args['std'] ) ? $args['std'] : '';
+		$value = isset($args['std']) ? $args['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 .= '<label for="wpinv_settings[' . $sanitize_id . ']"> ' . wp_kses_post($args['desc']) . '</label>';
 
 	echo $html;
 }
 
-function wpinv_rich_editor_callback( $args ) {
+function wpinv_rich_editor_callback($args) {
 	global $wpinv_options, $wp_version;
     
-    $sanitize_id = wpinv_sanitize_key( $args['id'] );
+    $sanitize_id = wpinv_sanitize_key($args['id']);
 
-	if ( isset( $wpinv_options[ $args['id'] ] ) ) {
-		$value = $wpinv_options[ $args['id'] ];
+	if (isset($wpinv_options[$args['id']])) {
+		$value = $wpinv_options[$args['id']];
 
-		if( empty( $args['allow_blank'] ) && empty( $value ) ) {
-			$value = isset( $args['std'] ) ? $args['std'] : '';
+		if (empty($args['allow_blank']) && empty($value)) {
+			$value = isset($args['std']) ? $args['std'] : '';
 		}
 	} else {
-		$value = isset( $args['std'] ) ? $args['std'] : '';
+		$value = isset($args['std']) ? $args['std'] : '';
 	}
 
-	$rows = isset( $args['size'] ) ? $args['size'] : 20;
+	$rows = isset($args['size']) ? $args['size'] : 20;
 
 	$html = '<div class="getpaid-settings-editor-input">';
-	if ( $wp_version >= 3.3 && function_exists( 'wp_editor' ) ) {
+	if ($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( $rows ), 'media_buttons' => false ) );
+		wp_editor(stripslashes($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 .= '<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;
 }
 
-function wpinv_upload_callback( $args ) {
+function wpinv_upload_callback($args) {
 	global $wpinv_options;
     
-    $sanitize_id = wpinv_sanitize_key( $args['id'] );
+    $sanitize_id = wpinv_sanitize_key($args['id']);
 
-	if ( isset( $wpinv_options[ $args['id'] ] ) ) {
+	if (isset($wpinv_options[$args['id']])) {
 		$value = $wpinv_options[$args['id']];
 	} else {
 		$value = isset($args['std']) ? $args['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;
 }
 
-function wpinv_color_callback( $args ) {
+function wpinv_color_callback($args) {
 	global $wpinv_options;
     
-    $sanitize_id = wpinv_sanitize_key( $args['id'] );
+    $sanitize_id = wpinv_sanitize_key($args['id']);
 
-	if ( isset( $wpinv_options[ $args['id'] ] ) ) {
-		$value = $wpinv_options[ $args['id'] ];
+	if (isset($wpinv_options[$args['id']])) {
+		$value = $wpinv_options[$args['id']];
 	} else {
-		$value = isset( $args['std'] ) ? $args['std'] : '';
+		$value = isset($args['std']) ? $args['std'] : '';
 	}
 
-	$default = isset( $args['std'] ) ? $args['std'] : '';
+	$default = isset($args['std']) ? $args['std'] : '';
 
-	$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( $default ) . '" />';
-	$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($value) . '" data-default-color="' . esc_attr($default) . '" />';
+	$html .= '<label for="wpinv_settings[' . $sanitize_id . ']"> ' . wp_kses_post($args['desc']) . '</label>';
 
 	echo $html;
 }
@@ -896,9 +896,9 @@ 
 function wpinv_country_states_callback($args) {
 	global $wpinv_options;
     
-    $sanitize_id = wpinv_sanitize_key( $args['id'] );
+    $sanitize_id = wpinv_sanitize_key($args['id']);
 
-	if ( isset( $args['placeholder'] ) ) {
+	if (isset($args['placeholder'])) {
 		$placeholder = $args['placeholder'];
 	} else {
 		$placeholder = '';
@@ -906,16 +906,16 @@ 
 
 	$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 = isset( $wpinv_options[ $args['id'] ] ) ? selected( $option, $wpinv_options[$args['id']], false ) : '';
-		$html .= '<option value="' . esc_attr( $option ) . '" ' . $selected . '>' . esc_html( $name ) . '</option>';
+	foreach ($states as $option => $name) {
+		$selected = isset($wpinv_options[$args['id']]) ? selected($option, $wpinv_options[$args['id']], 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 .= '<label for="wpinv_settings[' . $sanitize_id . ']"> ' . wp_kses_post($args['desc']) . '</label>';
 
 	echo $html;
 }
@@ -930,7 +930,7 @@ 
 	</tr>
 	<tr class="bsui">
     	<td colspan="2" class="p-0">
-			<?php include plugin_dir_path( __FILE__ ) . 'views/html-tax-rates-edit.php'; ?>
+			<?php include plugin_dir_path(__FILE__) . 'views/html-tax-rates-edit.php'; ?>
 
 	<?php
 
@@ -939,14 +939,14 @@ 
 /**
  * Displays a tax rate' edit row.
  */
-function wpinv_tax_rate_callback( $tax_rate, $key, $echo = true ) {
+function wpinv_tax_rate_callback($tax_rate, $key, $echo = true) {
 	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 ( $echo ) {
+	if ($echo) {
 		echo ob_get_clean();
 	} else {
 		return ob_get_clean(); 
@@ -958,81 +958,81 @@ 
     ob_start(); ?>
     </td><tr>
     <td colspan="2" class="wpinv_tools_tdbox">
-    <?php if ( $args['desc'] ) { ?><p><?php echo $args['desc']; ?></p><?php } ?>
-    <?php do_action( 'wpinv_tools_before' ); ?>
+    <?php if ($args['desc']) { ?><p><?php echo $args['desc']; ?></p><?php } ?>
+    <?php do_action('wpinv_tools_before'); ?>
     <table id="wpinv_tools_table" class="wp-list-table widefat fixed posts">
         <thead>
             <tr>
-                <th scope="col" class="wpinv-th-tool"><?php _e( 'Tool', 'invoicing' ); ?></th>
-                <th scope="col" class="wpinv-th-desc"><?php _e( 'Description', 'invoicing' ); ?></th>
-                <th scope="col" class="wpinv-th-action"><?php _e( 'Action', 'invoicing' ); ?></th>
+                <th scope="col" class="wpinv-th-tool"><?php _e('Tool', 'invoicing'); ?></th>
+                <th scope="col" class="wpinv-th-desc"><?php _e('Description', 'invoicing'); ?></th>
+                <th scope="col" class="wpinv-th-action"><?php _e('Action', 'invoicing'); ?></th>
             </tr>
         </thead>
-            <?php do_action( 'wpinv_tools_row' ); ?>
+            <?php do_action('wpinv_tools_row'); ?>
         <tbody>
         </tbody>
     </table>
-    <?php do_action( 'wpinv_tools_after' ); ?>
+    <?php do_action('wpinv_tools_after'); ?>
     <?php
     echo ob_get_clean();
 }
 
-function wpinv_descriptive_text_callback( $args ) {
-	echo wp_kses_post( $args['desc'] );
+function wpinv_descriptive_text_callback($args) {
+	echo wp_kses_post($args['desc']);
 }
 
-function wpinv_raw_html_callback( $args ) {
+function wpinv_raw_html_callback($args) {
 	echo $args['desc'];
 }
 
-function wpinv_hook_callback( $args ) {
-	do_action( 'wpinv_' . $args['id'], $args );
+function wpinv_hook_callback($args) {
+	do_action('wpinv_' . $args['id'], $args);
 }
 
 function wpinv_set_settings_cap() {
 	return wpinv_get_capability();
 }
-add_filter( 'option_page_capability_wpinv_settings', 'wpinv_set_settings_cap' );
+add_filter('option_page_capability_wpinv_settings', 'wpinv_set_settings_cap');
 
-function wpinv_settings_sanitize_input( $value, $key ) {
+function wpinv_settings_sanitize_input($value, $key) {
 
-    if ( $key == 'tax_rate' ) {
-        $value = wpinv_sanitize_amount( $value );
+    if ($key == 'tax_rate') {
+        $value = wpinv_sanitize_amount($value);
         $value = $value >= 100 ? 99 : $value;
     }
 
     return $value;
 }
-add_filter( 'wpinv_settings_sanitize', 'wpinv_settings_sanitize_input', 10, 2 );
+add_filter('wpinv_settings_sanitize', 'wpinv_settings_sanitize_input', 10, 2);
 
-function wpinv_on_update_settings( $old_value, $value, $option ) {
-    $old = !empty( $old_value['remove_data_on_unistall'] ) ? 1 : '';
-    $new = !empty( $value['remove_data_on_unistall'] ) ? 1 : '';
+function wpinv_on_update_settings($old_value, $value, $option) {
+    $old = !empty($old_value['remove_data_on_unistall']) ? 1 : '';
+    $new = !empty($value['remove_data_on_unistall']) ? 1 : '';
     
-    if ( $old != $new ) {
-        update_option( 'wpinv_remove_data_on_invoice_unistall', $new );
+    if ($old != $new) {
+        update_option('wpinv_remove_data_on_invoice_unistall', $new);
     }
 }
-add_action( 'update_option_wpinv_settings', 'wpinv_on_update_settings', 10, 3 );
-add_action( 'wpinv_settings_tab_bottom_emails_new_invoice', 'wpinv_settings_tab_bottom_emails', 10, 2 );
-add_action( 'wpinv_settings_tab_bottom_emails_cancelled_invoice', 'wpinv_settings_tab_bottom_emails', 10, 2 );
-add_action( 'wpinv_settings_tab_bottom_emails_failed_invoice', 'wpinv_settings_tab_bottom_emails', 10, 2 );
-add_action( 'wpinv_settings_tab_bottom_emails_onhold_invoice', 'wpinv_settings_tab_bottom_emails', 10, 2 );
-add_action( 'wpinv_settings_tab_bottom_emails_processing_invoice', 'wpinv_settings_tab_bottom_emails', 10, 2 );
-add_action( 'wpinv_settings_tab_bottom_emails_completed_invoice', 'wpinv_settings_tab_bottom_emails', 10, 2 );
-add_action( 'wpinv_settings_tab_bottom_emails_refunded_invoice', 'wpinv_settings_tab_bottom_emails', 10, 2 );
-add_action( 'wpinv_settings_tab_bottom_emails_user_invoice', 'wpinv_settings_tab_bottom_emails', 10, 2 );
-add_action( 'wpinv_settings_tab_bottom_emails_user_note', 'wpinv_settings_tab_bottom_emails', 10, 2 );
-add_action( 'wpinv_settings_tab_bottom_emails_overdue', 'wpinv_settings_tab_bottom_emails', 10, 2 );
-
-function wpinv_settings_tab_bottom_emails( $active_tab, $section ) {
+add_action('update_option_wpinv_settings', 'wpinv_on_update_settings', 10, 3);
+add_action('wpinv_settings_tab_bottom_emails_new_invoice', 'wpinv_settings_tab_bottom_emails', 10, 2);
+add_action('wpinv_settings_tab_bottom_emails_cancelled_invoice', 'wpinv_settings_tab_bottom_emails', 10, 2);
+add_action('wpinv_settings_tab_bottom_emails_failed_invoice', 'wpinv_settings_tab_bottom_emails', 10, 2);
+add_action('wpinv_settings_tab_bottom_emails_onhold_invoice', 'wpinv_settings_tab_bottom_emails', 10, 2);
+add_action('wpinv_settings_tab_bottom_emails_processing_invoice', 'wpinv_settings_tab_bottom_emails', 10, 2);
+add_action('wpinv_settings_tab_bottom_emails_completed_invoice', 'wpinv_settings_tab_bottom_emails', 10, 2);
+add_action('wpinv_settings_tab_bottom_emails_refunded_invoice', 'wpinv_settings_tab_bottom_emails', 10, 2);
+add_action('wpinv_settings_tab_bottom_emails_user_invoice', 'wpinv_settings_tab_bottom_emails', 10, 2);
+add_action('wpinv_settings_tab_bottom_emails_user_note', 'wpinv_settings_tab_bottom_emails', 10, 2);
+add_action('wpinv_settings_tab_bottom_emails_overdue', 'wpinv_settings_tab_bottom_emails', 10, 2);
+
+function wpinv_settings_tab_bottom_emails($active_tab, $section) {
     ?>
     <div class="wpinv-email-wc-row ">
         <div class="wpinv-email-wc-td">
-            <h3 class="wpinv-email-wc-title"><?php echo apply_filters( 'wpinv_settings_email_wildcards_title', __( 'Wildcards For Emails', 'invoicing' ) ); ?></h3>
+            <h3 class="wpinv-email-wc-title"><?php echo apply_filters('wpinv_settings_email_wildcards_title', __('Wildcards For Emails', 'invoicing')); ?></h3>
             <p class="wpinv-email-wc-description">
                 <?php
-                $description = __( 'The following wildcards can be used in email subjects, heading and content:<br>
+                $description = __('The following wildcards can be used in email subjects, heading and content:<br>
                     <strong>{site_title} :</strong> Site Title<br>
                     <strong>{name} :</strong> Customer\'s full name<br>
                     <strong>{first_name} :</strong> Customer\'s first name<br>
@@ -1046,7 +1046,7 @@ 
                     <strong>{invoice_due_date} :</strong> The date the invoice is due<br>
                     <strong>{date} :</strong> Today\'s date.<br>
                     <strong>{is_was} :</strong> If due date of invoice is past, displays "was" otherwise displays "is"<br>
-                    <strong>{invoice_label} :</strong> Invoices/quotes singular name. Ex: Invoice/Quote<br>', 'invoicing' );
+                    <strong>{invoice_label} :</strong> Invoices/quotes singular name. Ex: Invoice/Quote<br>', 'invoicing');
                 echo apply_filters('wpinv_settings_email_wildcards_description', $description, $active_tab, $section);
                 ?>
             </p>

includes/class-wpinv-api.php

Spacing +2 added lines, -2 removed lines

@@ -6,7 +6,7 @@ 
  * @since    1.0.19
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * The main API class
@@ -56,7 +56,7 @@ 
         $this->settings  = new GetPaid_REST_Settings_Controller();
 
         // Fires after loading the rest api.
-        do_action( 'getpaid_rest_api_loaded', $this );
+        do_action('getpaid_rest_api_loaded', $this);
     }
 
 }