<?php
/**
 * Main class for Smart Coupons Email
 *
 * @author      StoreApps
 * @since       4.4.1
 * @version     1.12.0
 *
 * @package     woocommerce-smart-coupons/includes/emails/
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly.
}

if ( ! class_exists( 'WC_SC_Email_Coupon' ) ) {
	/**
	 * The Smart Coupons Email class
	 *
	 * @extends \WC_SC_Email
	 */
	class WC_SC_Email_Coupon extends WC_SC_Email {

		/**
		 * Set email defaults
		 */
		public function __construct() {

			$this->id = 'wc_sc_email_coupon';

			$this->customer_email = true;

			// Set email title and description.
			$this->title       = __( 'Smart Coupons - Auto generated coupon email', 'woocommerce-smart-coupons' );
			$this->description = __( 'Email auto generated coupon to recipients. One email per coupon.', 'woocommerce-smart-coupons' );

			// Use our plugin templates directory as the template base.
			$this->template_base = dirname( WC_SC_PLUGIN_FILE ) . '/templates/';

			// Email template location.
			$this->template_html  = 'email.php';
			$this->template_plain = 'plain/email.php';

			$this->placeholders = array(
				'{coupon_code}'  => '',
				'{coupon_type}'  => '',
				'{coupon_value}' => '',
				'{sender_name}'  => '',
			);

			// Trigger for this email.
			add_action( 'wc_sc_email_coupon_notification', array( $this, 'trigger' ) );

			// Add the filter to modify the email subject.
			add_filter( 'woocommerce_email_subject_wc_sc_email_coupon', array( $this, 'decode_wc_sc_email_coupon_subject' ), 10, 1 );

			// Call parent constructor to load any other defaults not explicity defined here.
			parent::__construct();
		}

		/**
		 * Get default email subject.
		 *
		 * @return string Default email subject
		 */
		public function get_default_subject() {
			/* translators: 1: site title, 2: coupon type (e.g. Store Credit), 3: sender name */
			return sprintf( __( '%1$s: Congratulations! You\'ve received a %2$s from %3$s', 'woocommerce-smart-coupons' ), '{site_title}', '{coupon_type}', '{sender_name}' );
		}

		/**
		 * Get default email heading.
		 *
		 * @return string Default email heading
		 */
		public function get_default_heading() {
			/* translators: 1: coupon type (e.g. Store Credit), 2: coupon value (e.g. $10 or 10%) */
			return sprintf( __( 'You have received a %1$s  %2$s', 'woocommerce-smart-coupons' ), '{coupon_type}', '{coupon_value}' );
		}

		/**
		 * Determine if the email should actually be sent and setup email merge variables
		 *
		 * @param array $args Email arguments.
		 */
		public function trigger( $args = array() ) {
			try {
				$this->email_args = wp_parse_args( $args, $this->email_args );

				if ( ! isset( $this->email_args['email'] ) || empty( $this->email_args['email'] ) ) {
					return;
				}

				// Check if this coupon should be routed to gift card email (custom image or fallback support).
				if ( ! empty( $this->email_args['coupon']['code'] ) ) {
					if ( class_exists( 'WC_SC_Gift_Card_Image' ) ) {
						try {
							$gift_cert_handler = WC_SC_Gift_Card_Image::get_instance();

							// Check if this coupon has image support enabled.
							$has_image_support = $gift_cert_handler->coupon_has_image_support( $this->email_args['coupon']['code'] );

							if ( $has_image_support ) {
								// Check for custom uploaded image first.
								$custom_image = '';
								if ( ! empty( $this->email_args['order_id'] ) ) {
									$reflection = new ReflectionClass( $gift_cert_handler );
									$method     = $reflection->getMethod( 'get_custom_image_for_coupon' );
									$method->setAccessible( true );

									$coupon_parent = isset( $this->email_args['coupon']['parent'] ) ? $this->email_args['coupon']['parent'] : null;
									$custom_image  = $method->invoke( $gift_cert_handler, $this->email_args['order_id'], $this->email_args['coupon']['code'], $coupon_parent );
								}

								if ( $custom_image ) {
									// Add custom image data to the arguments.
									$url_method = $reflection->getMethod( 'get_image_url' );
									$url_method->setAccessible( true );
									$this->email_args['custom_gift_image_url'] = $url_method->invoke( $gift_cert_handler, $custom_image );
									$this->email_args['has_custom_image']      = true;
								} else {
									// Use fallback image.
									$this->email_args['custom_gift_image_url'] = $gift_cert_handler->get_fallback_image_url();
									$this->email_args['has_custom_image']      = false;
								}

								// Ensure this is treated as a gift.
								$this->email_args['is_gift'] = 'yes';

								// Trigger the gift card email instead and exit.
								do_action( 'wc_sc_email_coupon_image_notification', $this->email_args );
								return;
							}
						} catch ( Exception $e ) {
							if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
								error_log( 'Error: ' . $e->getMessage() . ' ' . __FILE__ . ' ' . __LINE__ ); // phpcs:ignore
							}
						}
					}
				}

				$this->setup_locale();

				$this->recipient = $this->email_args['email'];

				$order_id = isset( $this->email_args['order_id'] ) ? $this->email_args['order_id'] : 0;

				// Get order object.
				if ( ! empty( $order_id ) && 0 !== $order_id ) {
					$order = wc_get_order( $order_id );
					if ( is_a( $order, 'WC_Order' ) ) {
						$this->object = $order;
					}
				} else {
					$this->object = new WC_Order(); // This creates an empty order object.
				}

				$this->set_placeholders();

				$email_content = $this->get_content();
				// Replace placeholders with values in the email content.
				$email_content = ( is_callable( array( $this, 'format_string' ) ) ) ? $this->format_string( $email_content ) : $email_content;

				// Send email.
				if ( $this->is_enabled() && $this->get_recipient() ) {
					$this->send( $this->get_recipient(), $this->get_subject(), $email_content, $this->get_headers(), $this->get_attachments() );
				}
			} catch ( \Throwable $e ) {
				global $woocommerce_smart_coupon;
				if ( is_object( $woocommerce_smart_coupon ) && method_exists( $woocommerce_smart_coupon, 'sc_block_catch_error' ) ) {
					$woocommerce_smart_coupon->sc_block_catch_error( $e );
				}
			}

			$this->restore_locale();
		}

		/**
		 * Function to set placeholder variables used in email subject/heading
		 */
		public function set_placeholders() {
			$this->placeholders['{coupon_code}']   = $this->get_coupon_code();
			$this->placeholders['{coupon_type}']   = $this->get_coupon_type();
			$this->placeholders['{coupon_value}']  = $this->get_coupon_value();
			$this->placeholders['{coupon_expiry}'] = $this->get_coupon_expiry();
			$this->placeholders['{sender_name}']   = $this->get_sender_name();
		}

		/**
		 * Function to get coupon expiry date/time for current coupon being sent.
		 *
		 * @return string $coupon_expiry Coupon expiry.
		 */
		public function get_coupon_expiry() {
			try {
				global $woocommerce_smart_coupon;

				$coupon_expiry = '';
				$coupon        = isset( $this->email_args['coupon'] ) ? $this->email_args['coupon'] : '';

				if ( empty( $coupon ) ) {
					return $coupon_expiry;
				}

				$coupon_code = ( ! empty( $coupon['code'] ) ) ? $coupon['code'] : '';
				if ( empty( $coupon_code ) ) {
					return $coupon_expiry;
				}

				$_coupon = new WC_Coupon( $coupon_code );
				if ( $woocommerce_smart_coupon->is_wc_gte_30() ) {
					$coupon_id   = ( is_object( $_coupon ) && is_callable( array( $_coupon, 'get_id' ) ) ) ? $_coupon->get_id() : 0;
					$expiry_date = ( is_object( $_coupon ) && is_callable( array( $_coupon, 'get_date_expires' ) ) ) ? $_coupon->get_date_expires() : '';
				} else {
					$coupon_id   = ( ! empty( $_coupon->id ) ) ? $_coupon->id : 0;
					$expiry_date = ( ! empty( $_coupon->expiry_date ) ) ? $_coupon->expiry_date : '';
				}

				if ( ! empty( $expiry_date ) ) {
					if ( $woocommerce_smart_coupon->is_wc_gte_30() && $expiry_date instanceof WC_DateTime ) {
						$expiry_date = ( is_callable( array( $expiry_date, 'getTimestamp' ) ) ) ? $expiry_date->getTimestamp() : null;
					} elseif ( ! is_int( $expiry_date ) ) {
						$expiry_date = strtotime( $expiry_date );
					}

					if ( ! empty( $expiry_date ) && is_int( $expiry_date ) ) {
						$expiry_time = (int) $woocommerce_smart_coupon->get_post_meta( $coupon_id, 'wc_sc_expiry_time', true );
						if ( ! empty( $expiry_time ) ) {
							$expiry_date += $expiry_time; // Adding expiry time to expiry date.
						}
					}
					$coupon_expiry = $woocommerce_smart_coupon->get_expiration_format( $expiry_date );
				} else {
					$coupon_expiry = esc_html__( 'Never expires', 'woocommerce-smart-coupons' );
				}
			} catch ( \Throwable $e ) {
				if ( is_object( $woocommerce_smart_coupon ) && method_exists( $woocommerce_smart_coupon, 'sc_block_catch_error' ) ) {
					$woocommerce_smart_coupon->sc_block_catch_error( $e );
				}

				$coupon_expiry = esc_html__( 'Never expires', 'woocommerce-smart-coupons' );
			}

			return $coupon_expiry;
		}

		/**
		 * Function to load email html content
		 *
		 * @return string Email content html
		 */
		public function get_content_html() {
			try {
				global $woocommerce_smart_coupon;

				$order         = $this->object;
				$url           = $this->get_url();
				$email_heading = $this->get_heading();

				$sender = '';
				$from   = '';

				$is_gift = isset( $this->email_args['is_gift'] ) ? $this->email_args['is_gift'] : '';

				if ( 'yes' === $is_gift ) {
					$sender_name  = $this->get_sender_name();
					$sender_email = $this->get_sender_email();
					if ( ! empty( $sender_name ) && ! empty( $sender_email ) ) {
						$sender = $sender_name . ' (' . $sender_email . ') ';
						$from   = ' ' . __( 'from', 'woocommerce-smart-coupons' ) . ' ';
					}
				}

				$email               = isset( $this->email_args['email'] ) ? $this->email_args['email'] : '';
				$message_from_sender = isset( $this->email_args['message_from_sender'] ) ? $this->email_args['message_from_sender'] : '';
				$coupon_code         = isset( $this->email_args['coupon']['code'] ) ? $this->email_args['coupon']['code'] : '';

				$design           = get_option( 'wc_sc_setting_coupon_design', 'basic' );
				$background_color = get_option( 'wc_sc_setting_coupon_background_color', '#39cccc' );
				$foreground_color = get_option( 'wc_sc_setting_coupon_foreground_color', '#30050b' );
				$third_color      = get_option( 'wc_sc_setting_coupon_third_color', '#39cccc' );

				$show_coupon_description = get_option( 'smart_coupons_show_coupon_description', 'no' );

				$valid_designs = $woocommerce_smart_coupon->get_valid_coupon_designs();

				if ( ! in_array( $design, $valid_designs, true ) ) {
					$design = 'basic';
				}

				$design = ( 'custom-design' !== $design ) ? 'email-coupon' : $design;

				$coupon_styles = $woocommerce_smart_coupon->get_coupon_styles( $design, array( 'is_email' => 'yes' ) );

				$default_path  = $this->template_base;
				$template_path = $woocommerce_smart_coupon->get_template_base_dir( $this->template_html );

				ob_start();

				wc_get_template(
					$this->template_html,
					array(
						'email'                   => $email,
						'email_obj'               => $this,
						'email_heading'           => $email_heading,
						'order'                   => $order,
						'url'                     => $url,
						'message_from_sender'     => $message_from_sender,
						'from'                    => $from,
						'coupon_code'             => $coupon_code,
						'background_color'        => $background_color,
						'foreground_color'        => $foreground_color,
						'third_color'             => $third_color,
						'coupon_styles'           => $coupon_styles,
						'sender'                  => $sender,
						'design'                  => $design,
						'show_coupon_description' => $show_coupon_description,
					),
					$template_path,
					$default_path
				);

				return ob_get_clean();
			} catch ( \Throwable $e ) {
				if ( is_object( $woocommerce_smart_coupon ) && method_exists( $woocommerce_smart_coupon, 'sc_block_catch_error' ) ) {
					$woocommerce_smart_coupon->sc_block_catch_error( $e );
				}

				ob_end_clean();
				return '';
			}

		}

		/**
		 * Function to load email plain content
		 *
		 * @return string Email plain content
		 */
		public function get_content_plain() {
			try {
				global $woocommerce_smart_coupon;

				$order         = $this->object;
				$url           = $this->get_url();
				$email_heading = $this->get_heading();

				$sender = '';
				$from   = '';

				$is_gift = isset( $this->email_args['is_gift'] ) ? $this->email_args['is_gift'] : '';

				if ( 'yes' === $is_gift ) {
					$sender_name  = $this->get_sender_name();
					$sender_email = $this->get_sender_email();
					if ( ! empty( $sender_name ) && ! empty( $sender_email ) ) {
						$sender = $sender_name . ' (' . $sender_email . ') ';
						$from   = ' ' . __( 'from', 'woocommerce-smart-coupons' ) . ' ';
					}
				}

				$email               = isset( $this->email_args['email'] ) ? $this->email_args['email'] : '';
				$message_from_sender = isset( $this->email_args['message_from_sender'] ) ? $this->email_args['message_from_sender'] : '';
				$coupon_code         = isset( $this->email_args['coupon']['code'] ) ? $this->email_args['coupon']['code'] : '';

				$default_path  = $this->template_base;
				$template_path = $woocommerce_smart_coupon->get_template_base_dir( $this->template_plain );

				ob_start();

				wc_get_template(
					$this->template_plain,
					array(
						'email'               => $email,
						'email_obj'           => $this,
						'email_heading'       => $email_heading,
						'order'               => $order,
						'url'                 => $url,
						'message_from_sender' => $message_from_sender,
						'from'                => $from,
						'coupon_code'         => $coupon_code,
						'sender'              => $sender,
					),
					$template_path,
					$default_path
				);

				return ob_get_clean();
			} catch ( \Throwable $e ) {
				if ( is_object( $woocommerce_smart_coupon ) && method_exists( $woocommerce_smart_coupon, 'sc_block_catch_error' ) ) {
					$woocommerce_smart_coupon->sc_block_catch_error( $e );
				}
				ob_end_clean();
				return '';
			}

		}



		/**
		 * Get coupon code
		 *
		 * @return string
		 */
		public function get_coupon_code() {

			$coupon_code = isset( $this->email_args['coupon']['code'] ) ? $this->email_args['coupon']['code'] : '';

			return $coupon_code;
		}

		/**
		 * Get coupon value
		 *
		 * @return string
		 */
		public function get_coupon_value() {
			try {
				global $woocommerce_smart_coupon, $store_credit_label;

				$coupon = isset( $this->email_args['coupon'] ) ? $this->email_args['coupon'] : '';

				if ( empty( $coupon ) ) {
					return '';
				}

				$order_id = isset( $this->email_args['order_id'] ) ? $this->email_args['order_id'] : 0;
				$order    = ( ! empty( $order_id ) ) ? wc_get_order( $order_id ) : null;

				$wc_price_args = array(
					'currency' => is_callable( array( $order, 'get_currency' ) ) ? $order->get_currency() : '',
				);

				$discount_type = isset( $this->email_args['discount_type'] ) ? $this->email_args['discount_type'] : '';
				$is_gift       = isset( $this->email_args['is_gift'] ) ? $this->email_args['is_gift'] : '';

				// Get smart coupon type  string.
				if ( 'smart_coupon' === $discount_type && 'yes' === $is_gift ) {
					$smart_coupon_type = __( 'Gift Card', 'woocommerce-smart-coupons' );
				} else {
					$smart_coupon_type = __( 'Store Credit', 'woocommerce-smart-coupons' );
				}

				if ( ! empty( $store_credit_label['singular'] ) ) {
					$smart_coupon_type = ucwords( $store_credit_label['singular'] );
				}

				$amount      = $coupon['amount'];
				$coupon_code = $coupon['code'];

				// Get coupon types.
				$all_discount_types = wc_get_coupon_types();

				$_coupon = new WC_Coupon( $coupon_code );

				if ( $woocommerce_smart_coupon->is_wc_gte_30() ) {
					$_coupon_id                   = ( is_object( $_coupon ) && is_callable( array( $_coupon, 'get_id' ) ) ) ? $_coupon->get_id() : 0;
					$_is_free_shipping            = ( $_coupon->get_free_shipping() ) ? 'yes' : 'no';
					$_discount_type               = $_coupon->get_discount_type();
					$_product_ids                 = $_coupon->get_product_ids();
					$_excluded_product_ids        = $_coupon->get_excluded_product_ids();
					$_product_categories          = $_coupon->get_product_categories();
					$_excluded_product_categories = $_coupon->get_excluded_product_categories();
				} else {
					$_coupon_id                   = ( ! empty( $_coupon->id ) ) ? $_coupon->id : 0;
					$_is_free_shipping            = ( ! empty( $_coupon->free_shipping ) ) ? $_coupon->free_shipping : '';
					$_discount_type               = ( ! empty( $_coupon->discount_type ) ) ? $_coupon->discount_type : '';
					$_product_ids                 = ( ! empty( $_coupon->product_ids ) ) ? $_coupon->product_ids : array();
					$_excluded_product_ids        = ( ! empty( $_coupon->exclude_product_ids ) ) ? $_coupon->exclude_product_ids : array();
					$_product_categories          = ( ! empty( $_coupon->product_categories ) ) ? $_coupon->product_categories : array();
					$_excluded_product_categories = ( ! empty( $_coupon->exclude_product_categories ) ) ? $_coupon->exclude_product_categories : array();
				}

				if ( false === stripos( $discount_type, 'percent' ) ) {
					$amount = $woocommerce_smart_coupon->read_price( $amount, true, $order );
				}

				switch ( $discount_type ) {

					case 'smart_coupon':
						/* translators: %s coupon amount */
						$coupon_value = sprintf( __( 'worth %s ', 'woocommerce-smart-coupons' ), wc_price( $amount, $wc_price_args ) );
						break;

					case 'fixed_cart':
						/* translators: %s: coupon amount */
						$coupon_value = sprintf( __( 'worth %s (for entire purchase) ', 'woocommerce-smart-coupons' ), wc_price( $amount, $wc_price_args ) );
						break;

					case 'fixed_product':
						if ( ! empty( $_product_ids ) || ! empty( $_excluded_product_ids ) || ! empty( $_product_categories ) || ! empty( $_excluded_product_categories ) ) {
							$_discount_for_text = __( 'for some products', 'woocommerce-smart-coupons' );
						} else {
							$_discount_for_text = __( 'for all products', 'woocommerce-smart-coupons' );
						}

						/* translators: 1: coupon amount 2: discount for text */
						$coupon_value = sprintf( __( 'worth %1$s (%2$s) ', 'woocommerce-smart-coupons' ), wc_price( $amount, $wc_price_args ), $_discount_for_text );
						break;

					case 'percent_product':
						if ( ! empty( $_product_ids ) || ! empty( $_excluded_product_ids ) || ! empty( $_product_categories ) || ! empty( $_excluded_product_categories ) ) {
							$_discount_for_text = __( 'for some products', 'woocommerce-smart-coupons' );
						} else {
							$_discount_for_text = __( 'for all products', 'woocommerce-smart-coupons' );
						}

						/* translators: 1: coupon amount 2: discount for text */
						$coupon_value = sprintf( __( 'worth %1$s%% (%2$s) ', 'woocommerce-smart-coupons' ), $amount, $_discount_for_text );
						break;

					case 'percent':
						if ( ! empty( $_product_ids ) || ! empty( $_excluded_product_ids ) || ! empty( $_product_categories ) || ! empty( $_excluded_product_categories ) ) {
							$_discount_for_text = __( 'for some products', 'woocommerce-smart-coupons' );
						} else {
							$_discount_for_text = __( 'for entire purchase', 'woocommerce-smart-coupons' );
						}

						$max_discount_text = '';
						$max_discount      = $woocommerce_smart_coupon->get_post_meta( $_coupon_id, 'wc_sc_max_discount', true, true, $order );
						if ( ! empty( $max_discount ) && is_numeric( $max_discount ) ) {
							/* translators: %s: Maximum coupon discount amount */
							$max_discount_text = sprintf( __( ' upto %s', 'woocommerce-smart-coupons' ), wc_price( $max_discount, $wc_price_args ) );
						}

						/* translators: 1: coupon amount 2: max discount text 3: discount for text */
						$coupon_value = sprintf( __( 'worth %1$s%%  %2$s (%3$s) ', 'woocommerce-smart-coupons' ), $amount, $max_discount_text, $_discount_for_text );
						break;

					default:
						$default_coupon_type = ( ! empty( $all_discount_types[ $discount_type ] ) ) ? $all_discount_types[ $discount_type ] : ucwords( str_replace( array( '_', '-' ), ' ', $discount_type ) );
						$coupon_type         = apply_filters( 'wc_sc_coupon_type', $default_coupon_type, $_coupon, $all_discount_types );
						$coupon_amount       = apply_filters( 'wc_sc_coupon_amount', $amount, $_coupon );

						/* translators: 1: coupon type 2: coupon amount */
						$coupon_value = sprintf( __( '%1$s coupon of %2$s', 'woocommerce-smart-coupons' ), $coupon_type, $coupon_amount );
						$coupon_value = apply_filters( 'wc_sc_email_heading', $coupon_value, $_coupon );
						break;

				}

				if ( 'yes' === $_is_free_shipping && in_array( $_discount_type, array( 'fixed_cart', 'fixed_product', 'percent_product', 'percent' ), true ) ) {
					/* translators: 1: email heading 2: suffix */
					$coupon_value = sprintf( __( '%1$s Free Shipping%2$s', 'woocommerce-smart-coupons' ), ( ( ! empty( $amount ) ) ? $coupon_value . __( '&', 'woocommerce-smart-coupons' ) : __( 'You have received a', 'woocommerce-smart-coupons' ) ), ( ( empty( $amount ) ) ? __( ' coupon', 'woocommerce-smart-coupons' ) : '' ) );
				}
			} catch ( \Throwable $e ) {
				if ( is_object( $woocommerce_smart_coupon ) && method_exists( $woocommerce_smart_coupon, 'sc_block_catch_error' ) ) {
					$woocommerce_smart_coupon->sc_block_catch_error( $e );
				}

				$coupon_value = '';

			}

			return wp_strip_all_tags( $coupon_value );
		}

		/**
		 * Function to get coupon type for current coupon being sent.
		 *
		 * @return string $coupon_type Coupon type.
		 */
		public function get_coupon_type() {
			try {
				global $store_credit_label,  $woocommerce_smart_coupon;

				$discount_type = isset( $this->email_args['discount_type'] ) ? $this->email_args['discount_type'] : '';
				$is_gift       = isset( $this->email_args['is_gift'] ) ? $this->email_args['is_gift'] : '';

				if ( 'smart_coupon' === $discount_type && 'yes' === $is_gift ) {
					$smart_coupon_type = __( 'Gift Card', 'woocommerce-smart-coupons' );
				} else {
					$smart_coupon_type = __( 'Store Credit', 'woocommerce-smart-coupons' );
				}

				if ( ! empty( $store_credit_label['singular'] ) ) {
					$smart_coupon_type = ucwords( $store_credit_label['singular'] );
				}

				$coupon_type = ( 'smart_coupon' === $discount_type && ! empty( $smart_coupon_type ) ) ? $smart_coupon_type : __( 'coupon', 'woocommerce-smart-coupons' );

			} catch ( \Throwable $e ) {
				if ( is_object( $woocommerce_smart_coupon ) && method_exists( $woocommerce_smart_coupon, 'sc_block_catch_error' ) ) {
					$woocommerce_smart_coupon->sc_block_catch_error( $e );
				}

				$coupon_type = __( 'coupon', 'woocommerce-smart-coupons' );
			}
			return $coupon_type;
		}

		/**
		 * Function to update SC admin email settings when WC email settings get updated
		 */
		public function process_admin_options() {
			// Save regular options.
			parent::process_admin_options();

			$is_email_enabled = $this->get_field_value( 'enabled', $this->form_fields['enabled'] );

			if ( ! empty( $is_email_enabled ) ) {
				update_option( 'smart_coupons_is_send_email', $is_email_enabled, 'no' );
			}
		}

		/**
		 * Decodes HTML entities in the WooCommerce Smart Coupons email subject.
		 *
		 * @param string $subject The original email subject.
		 * @return string The decoded email subject.
		 */
		public function decode_wc_sc_email_coupon_subject( $subject ) {
			return html_entity_decode( $subject, ENT_QUOTES | ENT_SUBSTITUTE | ENT_HTML401 );
		}

	}
}
