<?php

// If accessed directly, exit
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * This class builds the short code that
 * will be used to display coupon codes
 * on the front end.
 *
 * @since 1.0
 * @author CouponThemes
 */
class WPAF_Short_Code {

	/**
	 * Returns true if the current request is the AJAX archive-grid render
	 * (i.e. the `wpaf_coupons_category_action` AJAX action is firing).
	 *
	 * Centralises what used to be `isset( $_POST['action'] ) && $_POST['action'] === '…'`
	 * checks scattered through archive header/footer templates, so those
	 * templates no longer need to touch `$_POST` directly. The action name is
	 * only used as a render-mode discriminator (it does not gate any data
	 * mutation); the corresponding AJAX handler `wpaf_coupons_archive_func()`
	 * already verifies the nonce via `check_ajax_referer()` before any state
	 * change happens.
	 *
	 * @return bool
	 * @since 1.2
	 */
	public static function wpaf_is_ajax_archive_render() {
		// Detect render-mode by which AJAX action hook is currently executing rather
		// than reading $_REQUEST['action']. doing_action() inspects the live hook
		// stack, so no request input is touched; it returns false on normal page loads.
		return doing_action( 'wp_ajax_wpaf_coupons_category_action' )
			|| doing_action( 'wp_ajax_nopriv_wpaf_coupons_category_action' );
	}

	/**
	 * Returns true if the current request is the AJAX category/vendor render
	 * (i.e. the `wpaf_coupons_cat_vend_action` AJAX action is firing).
	 *
	 * @return bool
	 * @since 1.2
	 */
	public static function wpaf_is_ajax_category_render() {
		// Detect render-mode by which AJAX action hook is currently executing rather
		// than reading $_REQUEST['action']. doing_action() inspects the live hook
		// stack, so no request input is touched; it returns false on normal page loads.
		return doing_action( 'wp_ajax_wpaf_coupons_cat_vend_action' )
			|| doing_action( 'wp_ajax_nopriv_wpaf_coupons_cat_vend_action' );
	}

	/**
	 * Class constructor.
	 * Adds the function to register the shortcode with WordPress.
	 *
	 * @since 1.0
	 */
	public static function init() {

		/**
		 * Shortcode register function.
		 *
		 * @since 1.0
		 */
		add_shortcode( 'affcoupon', array( __CLASS__, 'wpaf_coupon' ) );
		// Legacy shortcode tag preserved for backward compatibility with existing posts.
		add_shortcode( 'aff-coupon', array( __CLASS__, 'wpaf_coupon' ) );
		add_shortcode( 'affcoupon_btn', array( __CLASS__, 'wpaf_coupon_code' ) );


			add_shortcode( 'affcoupon_coupons', array( __CLASS__, 'wpaf_coupons_archive_func' ) );
			add_shortcode( 'affcoupon_loop', array( __CLASS__, 'wpaf_coupons_loop_func' ) );

			add_action( 'wp_ajax_wpaf_coupons_category_action',
				array( __CLASS__, 'wpaf_coupons_archive_func' ) );
			add_action( 'wp_ajax_nopriv_wpaf_coupons_category_action',
				array( __CLASS__, 'wpaf_coupons_archive_func' ) );

			add_action( 'wp_ajax_wpaf_coupons_cat_vend_action',
				array( __CLASS__, 'wpaf_coupons_loop_func' ) );
			add_action( 'wp_ajax_nopriv_wpaf_coupons_cat_vend_action',
				array( __CLASS__, 'wpaf_coupons_loop_func' ) );

	}

	/**
	 * Shortcode attributes and arguments to build the shortcode.
	 *
	 * @param $atts array shortcode attributes.
	 *
	 * @return string
	 *
	 * @since 1.0
	 */
	public static function wpaf_coupon( $atts ) {

		global $wpaf_atts;
		global $wpaf_coupon;

		/**
		 * These are the shortcode attributes.
		 *
		 * @since 1.0
		 */
		$wpaf_atts = shortcode_atts(
			array(
				'id'    => '',
				'total' => '-1',
			), $atts, 'wpaf_coupon'
		);

		/**
		 * Arguments to be used for a custom Query.
		 *
		 * @since 1.0
		 */
		$wpaf_arg = array(
			'p'              => esc_attr( $wpaf_atts['id'] ),
			'posts_per_page' => esc_attr( $wpaf_atts['total'] ),
			'post_type'      => 'wpaf_coupons',
			'post_status'    => 'publish',
		);

		/**
		 * New custom query to get post and post data
		 * from the custom coupon post type.
		 *
		 * @since 1.0
		 */
		$wpaf_coupon = new WP_Query( $wpaf_arg );
		$output      = '';

		//Hide expired coupon feature
		$today               = gmdate( 'd-m-Y' );
		$hide_expired_coupon = get_option( 'wpaf_hide-expired-coupon' );

		while ( $wpaf_coupon->have_posts() ) {

			$wpaf_coupon->the_post();

			global $wpaf_coupon_id;

			$template = new WPAF_Template_Loader();

			$wpaf_coupon_id       = get_the_ID();
			$expire_date     = get_post_meta( $wpaf_coupon_id, 'coupon_details_expire-date', true );
			$coupon_template = get_post_meta( $wpaf_coupon_id, 'coupon_details_coupon-template', true );
			$coupon_type     = get_post_meta( $wpaf_coupon_id, 'coupon_details_coupon-type', true );

			if ( $coupon_type === 'Image' ) {

				ob_start();

				$template->get_template_part( 'shortcode-image' );

				$output = ob_get_clean();

				if ( WPAF_Amp::wpaf_amp_is() ) {
					WPAF_Amp::instance()->setCss( 'shortcode_image' );
				}

				wp_reset_postdata();

				return $output;

			}

			// Hide expired coupon feature (default is Not to hide).
			if ( ! empty( $hide_expired_coupon ) || $hide_expired_coupon == "on" ) {
				$expire_date = get_post_meta( $wpaf_coupon_id, 'coupon_details_expire-date', true );
				if ( ! empty( $expire_date ) ) {
					if ( (string) (int) $expire_date != $expire_date ) {
						$expire_date = strtotime( $expire_date );
					}
					if ( $coupon_template !== 'Template Four' ) {
						if ( $expire_date < strtotime( $today ) ) {
							continue;
						}
					} else {
						$second_expire_date = get_post_meta( $wpaf_coupon_id, 'coupon_details_second-expire-date', true );
						$third_expire_date  = get_post_meta( $wpaf_coupon_id, 'coupon_details_third-expire-date', true );
						if ( $expire_date < strtotime( $today ) &&
						     $second_expire_date < strtotime( $today ) &&
						     $third_expire_date < strtotime( $today ) ) {
							continue;
						}
					}
				}
			}


				if ( $coupon_template == 'Template One' ) {

					$argcss = 'shortcode_one';
					ob_start();
					$template->get_template_part( 'shortcode-one' );
					$output = ob_get_clean();

				} elseif ( $coupon_template == 'Template Two' ) {

					$argcss = 'shortcode_two';
					ob_start();
					$template->get_template_part( 'shortcode-two' );
					$output = ob_get_clean();

				} elseif ( $coupon_template == 'Template Three' ) {

					$argcss = 'shortcode_three';
					ob_start();
					$template->get_template_part( 'shortcode-three' );
					$output = ob_get_clean();

				} elseif ( $coupon_template == 'Template Four' ) {

					$argcss = 'shortcode_four';
					ob_start();
					$template->get_template_part( 'shortcode-four' );
					$output = ob_get_clean();

				} elseif ( $coupon_template == 'Template Five' ) {

					$argcss = 'shortcode_five';
					ob_start();
					$template->get_template_part( 'shortcode-five' );
					$output = ob_get_clean();

				} elseif ( $coupon_template == 'Template Six' ) {

					$argcss = 'shortcode_six';
					ob_start();
					$template->get_template_part( 'shortcode-six' );
					$output = ob_get_clean();

				} elseif ( $coupon_template == 'Template Seven' ) {

					$argcss = 'shortcode_seven';
					ob_start();
					$template->get_template_part( 'shortcode-seven' );
					$output = ob_get_clean();

				} elseif ( $coupon_template == 'Template Eight' ) {

					$argcss = 'shortcode_eight';
					ob_start();
					$template->get_template_part( 'shortcode-eight' );
					$output = ob_get_clean();

				} else {

					$argcss = 'shortcode_default';
					ob_start();
					$template->get_template_part( 'shortcode-default' );
					$output = ob_get_clean();

				}

			if ( WPAF_Amp::wpaf_amp_is() ) {
				WPAF_Amp::instance()->setCss( 'shortcode_common' );
				WPAF_Amp::instance()->setCss( $argcss );
				$user_stylesheets = WPAF_Assets::wpaf_stylesheets( true, $wpaf_coupon_id, $coupon_template );
				WPAF_Amp::instance()->setCss( $user_stylesheets, false );
			}

		}

		wp_reset_postdata();

		return $output;

	}

	/**
	 * Builds the only coupon code shortcode.
	 *
	 * @param $atts
	 *
	 * @return string
	 *
	 * @since 1.0
	 */
	public static function wpaf_coupon_code( $atts ) {

		global $wpaf_code_atts;
		global $wpaf_coupon_code;

		/**
		 * These are the shortcode attributes.
		 *
		 * @since 1.0
		 */
		$wpaf_code_atts = shortcode_atts(
			array(
				'id'    => '',
				'total' => '-1'
			), $atts, 'wpaf_code'
		);

		/**
		 * Arguments to be used for a custom Query.
		 *
		 * @since 1.0
		 */
		$wpaf_code_arg = array(
			'p'              => esc_attr( $wpaf_code_atts['id'] ),
			'posts_per_page' => esc_attr( $wpaf_code_atts['total'] ),
			'post_type'      => 'wpaf_coupons',
			'post_status'    => 'publish',
		);

		/**
		 * New custom query to get post and post data
		 * from the custom coupon post type.
		 *
		 * @since 1.0
		 */
		$wpaf_coupon_code = new WP_Query( $wpaf_code_arg );

		$template = new WPAF_Template_Loader();

		ob_start();

		$template->get_template_part( 'shortcode-code' );

		// Return Variables
		$output = ob_get_clean();

		if ( WPAF_Amp::wpaf_amp_is() ) {
			WPAF_Amp::instance()->setCss( 'shortcode_common' );
		}

		wp_reset_postdata();

		return $output;

	}

	/**
	 * Shortcode for the coupon archive page.
	 *
	 * @param $atts
	 *
	 * @return string
	 */
	public static function wpaf_coupons_archive_func( $atts ) {

		$output             = "";
		$paged              = 1;
		$wpaf_data_taxonomy = 'all';
		$wpaf_data_search   = '';
		$a                  = shortcode_atts( array(
			'count' => '9',
			'temp'  => ''
		), $atts );

		$archive_category_setting = get_option( 'wpaf_archive-munu-categories' );

		if ( $archive_category_setting == 'vendor' ) {
			$terms                = get_terms( array( 'taxonomy' => 'wpaf_coupon_vendor' ) );
			$wpaf_coupon_taxonomy = WPAF_Plugin::VENDOR_TAXONOMY;
			$wpaf_term_field_name = 'wpaf_vendor';
		} else {
			$terms                = get_terms( array( 'taxonomy' => 'wpaf_coupon_category' ) );
			$wpaf_coupon_taxonomy = WPAF_Plugin::CUSTOM_TAXONOMY;
			$wpaf_term_field_name = 'wpaf_category';
		}

		// phpcs:ignore WordPress.Security.NonceVerification.Missing -- Action discriminator only; nonce verified inside this branch via check_ajax_referer.
		if ( isset( $_POST['action'] ) && 'wpaf_coupons_category_action' === $_POST['action'] ) {
			if ( ! check_ajax_referer( 'wpaf-security-nonce', 'security' ) ) {
				wp_die();
			}

			// Nonce verified above. Extract POST values, validate, then push the
			// validated values into WordPress query vars so the templates below can
			// read uniformly via get_query_var() without touching $_POST/$_GET.

			$posted_template = isset( $_POST['coupon_template'] ) ? sanitize_text_field( wp_unslash( $_POST['coupon_template'] ) ) : '';
			if ( '' !== $posted_template ) {
				$a['temp'] = $posted_template;
			}

			$posted_count = isset( $_POST['coupon_items_count'] ) ? absint( wp_unslash( $_POST['coupon_items_count'] ) ) : 0;
			if ( $posted_count > 0 ) {
				$a['count'] = $posted_count;
			}

			$posted_paged = isset( $_POST['wpaf_page_num'] ) ? absint( wp_unslash( $_POST['wpaf_page_num'] ) ) : 0;
			if ( $posted_paged > 0 ) {
				$paged = $posted_paged;
			}

			$posted_term = isset( $_POST[ $wpaf_term_field_name ] ) ? sanitize_text_field( wp_unslash( $_POST[ $wpaf_term_field_name ] ) ) : '';
			if ( '' !== $posted_term && get_term_by( 'slug', $posted_term, $wpaf_coupon_taxonomy ) ) {
				$wpaf_data_taxonomy = $posted_term;
			}

			$posted_search = isset( $_POST['search_text'] ) ? sanitize_text_field( wp_unslash( $_POST['search_text'] ) ) : '';
			if ( '' !== $posted_search ) {
				if ( $posted_search === trim( $posted_search ) ) {
					$wpaf_data_search = $posted_search;
				} else {
					$output = '<p>' . esc_html__( 'Sorry, no coupons/deals found.', 'affcoupon' ) . '</p>';
					wp_send_json( $output );
				}
			}

			// Make the validated values available to downstream templates uniformly.
			set_query_var( 'wpaf_page_num', $paged );
			set_query_var( $wpaf_term_field_name, $wpaf_data_taxonomy );
			set_query_var( 'wpaf_search', $wpaf_data_search );
		} else {
			wp_enqueue_script( 'wpaf-main-js' );

			// Read pagination + taxonomy filter from registered query vars (populated
			// from URL query string by WP). These are read-only public params (like
			// WP's own pagination links) so they do not require a nonce.
			$page_from_url = absint( get_query_var( 'wpaf_page_num' ) );
			if ( $page_from_url > 0 ) {
				$paged = $page_from_url;
			}

			$term_from_url = sanitize_text_field( get_query_var( $wpaf_term_field_name ) );
			if ( '' !== $term_from_url && get_term_by( 'slug', $term_from_url, $wpaf_coupon_taxonomy ) ) {
				$wpaf_data_taxonomy = $term_from_url;
			}
		}

		if ( $wpaf_data_taxonomy != 'all' && $wpaf_data_taxonomy != '' && empty( $wpaf_data_search ) ) {
			$args = array(
				'post_type'      => 'wpaf_coupons',
				'order'          => 'DESC',
				'posts_per_page' => $a['count'],
				// phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_tax_query -- Required to filter coupons by taxonomy in shortcode output.
				'tax_query'      => array(
					array(
						'taxonomy' => $wpaf_coupon_taxonomy,
						'field'    => 'slug',
						'terms'    => $wpaf_data_taxonomy,
					),
				),
				'paged'          => $paged
			);
		} elseif ( ! empty( $wpaf_data_search ) ) {
			$args = array(
				'post_type'      => 'wpaf_coupons',
				'order'          => 'DESC',
				'posts_per_page' => $a['count'],
				'paged'          => $paged,
				's'              => $wpaf_data_search,
			);
		} else {
			$args = array(
				'post_type'      => 'wpaf_coupons',
				'order'          => 'DESC',
				'posts_per_page' => $a['count'],
				'paged'          => $paged,
			);
		}

		if ( empty( $a['temp'] ) ) {
			// phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_meta_query -- Required to exclude image-type coupons from default shortcode listing.
			$args['meta_query'] = array(
				array(
					'key'     => 'coupon_details_coupon-type',
					'value'   => 'Image',
					'compare' => '!='
				)
			);
		}

		// exclude expired coupons if hide expired coupon setting is enabled.
		$expired_coupons = array();
		$the_query       = new WP_Query( $args );
		if ( $the_query->have_posts() ) {
			$today               = gmdate( 'd-m-Y' );
			$hide_expired_coupon = get_option( 'wpaf_hide-expired-coupon' );

			while ( $the_query->have_posts() ) {
				$the_query->the_post();
				global $wpaf_coupon_id;
				$wpaf_coupon_id               = get_the_ID();
				$expire_date             = get_post_meta( $wpaf_coupon_id, 'coupon_details_expire-date', true );
				$current_coupon_template = get_post_meta( $wpaf_coupon_id, 'coupon_details_coupon-template', true );
				$coupon_type             = get_post_meta( $wpaf_coupon_id, 'coupon_details_coupon-type', true );

				if ( ! empty( $hide_expired_coupon ) || $hide_expired_coupon == "on" ) {
					$expire_date = get_post_meta( $wpaf_coupon_id, 'coupon_details_expire-date', true );
					if ( ! empty( $expire_date ) ) {
						if ( (string) (int) $expire_date != $expire_date ) {
							$expire_date = strtotime( $expire_date );
						}
						if ( $current_coupon_template !== 'Template Four' ) {
							if ( $expire_date < strtotime( $today ) ) {
								array_push( $expired_coupons, $wpaf_coupon_id );
								continue;
							}
						} else {
							$second_expire_date = get_post_meta( $wpaf_coupon_id, 'coupon_details_second-expire-date',
								true );
							$third_expire_date  = get_post_meta( $wpaf_coupon_id, 'coupon_details_third-expire-date', true );
							if ( $expire_date < strtotime( $today ) &&
							     $second_expire_date < strtotime( $today ) &&
							     $third_expire_date < strtotime( $today ) ) {
								array_push( $expired_coupons, $wpaf_coupon_id );
								continue;
							}
						}
					}
				}
			}
			wp_reset_postdata();
		}

		if ( count( $expired_coupons ) > 0 ) {
			// phpcs:ignore WordPressVIPMinimum.Performance.WPQueryParams.PostNotIn_post__not_in -- Required to exclude expired coupons when 'hide expired' option is enabled.
			$args['post__not_in'] = $expired_coupons;
		}
		$the_query = new WP_Query( $args );

		if ( $the_query->have_posts() ) :

			/**
			 * $wpaf_parent -> print the header and footer of the parent element
			 * $wpaf_max_num_page -> used in pagination
			 * $coupon_template -> the name of template
			 * $num_posts -> number of posts
			 * $wpaf_current_url -> return the Url of the current post
			 */
			global $wpaf_parent, $wpaf_max_num_page, $wpaf_current_url;
			$num_posts    = $the_query->post_count;
			$i            = 1;
			$wpaf_max_num_page = $the_query->max_num_pages;
			$wpaf_current_url  = get_permalink();

			// template system.
			$temp = $a['temp'];

			$argcss = array();
			if ( $temp == '' ) { // vertical style.
				$argcss          = 'archive_not_temp';
				$coupon_template = 'shortcode-archive';
			} else {
				switch ( $temp ) {
					case 'one':
						$argcss          = 'archive_one';
						$coupon_template = 'shortcode-archive-one';
						break;
					case 'two':
						$argcss          = 'archive_two';
						$coupon_template = 'shortcode-archive-two';
						break;
					case 'three':
						$argcss          = 'archive_three';
						$coupon_template = 'shortcode-archive-three';
						break;
					case 'seven':
						$argcss          = 'archive_seven';
						$coupon_template = 'shortcode-archive-seven';
						break;
					case 'eight':
						$argcss          = 'archive_eight';
						$coupon_template = 'shortcode-archive-eight';
						break;
					default :
						$argcss          = 'archive_default';
						$coupon_template = 'shortcode-archive-default';
						break;
				}
			}
			if ( WPAF_Amp::wpaf_amp_is() ) {
				WPAF_Amp::instance()->setCss( 'archive_common' );
				WPAF_Amp::instance()->setCss( 'shortcode_common' );
				if ( $argcss == 'archive_default' ) {
					WPAF_Amp::instance()->setCss( 'shortcode_five' );
					WPAF_Amp::instance()->setCss( 'shortcode_six' );
					WPAF_Amp::instance()->setCss( 'shortcode_default' );
				} else {
					WPAF_Amp::instance()->setCss( $argcss );
				}
				$user_stylesheets = WPAF_Assets::wpaf_stylesheets( true );
				WPAF_Amp::instance()->setCss( $user_stylesheets, false );
			}

			if ( ! WPAF_Amp::wpaf_amp_is() && ( ! isset( $_POST['action'] ) || $_POST['action'] != 'wpaf_coupons_category_action' ) ) {
				global $post;
				$wpaf_data_coupon_page_url = get_page_link( $post->ID );
				$wpaf_coupon_taxonomy_attr = in_array( $wpaf_coupon_taxonomy, array( WPAF_Plugin::CUSTOM_TAXONOMY, WPAF_Plugin::VENDOR_TAXONOMY ), true ) ? $wpaf_coupon_taxonomy : WPAF_Plugin::CUSTOM_TAXONOMY;
				$output                    = '<div id="wpaf_coupon_template" wpaf-data-coupon_template="' . esc_attr( $temp ) . '" wpaf-data-coupon_items_count="' . esc_attr( $a["count"] ) . '" '
				                             . 'wpaf-data-coupon_page_url="' . esc_url( $wpaf_data_coupon_page_url ) . '" ' . esc_attr( $wpaf_coupon_taxonomy_attr ) . '="' . esc_attr( $wpaf_data_taxonomy ) . '"></div>';
			}

			// the loop.
			while ( $the_query->have_posts() ) : $the_query->the_post();

				global $wpaf_coupon_id;
				$wpaf_coupon_id = get_the_ID();
				$wpaf_parent    = "";

				// check to print header or footer.
				if ( $i == 1 && $num_posts !== 1 ) {
					$wpaf_parent = 'header';
				} elseif ( $num_posts == 1 ) {
					// means there's only one coupon
					// So, it should print the header and footer in this time
					$wpaf_parent = 'headerANDfooter';
				} elseif ( $i == $num_posts ) {
					$wpaf_parent = 'footer';
				}

				$template = new WPAF_Template_Loader();
				ob_start();
				$template->get_template_part( $coupon_template );
				$output .= ob_get_clean();
				$i ++;

			endwhile;
			// end of the loop.
			wp_reset_postdata();
		else :
			$output .= '<p>' . esc_html__( 'Sorry, no coupons/deals found.', 'affcoupon' ) . '</p>';
		endif;

			// phpcs:ignore WordPress.Security.NonceVerification.Missing -- Action discriminator only; nonce verified inside this branch via check_ajax_referer.
		if ( isset( $_POST['action'] ) && $_POST['action'] == 'wpaf_coupons_category_action' ) {
				wp_send_json( $output );
			}

		return $output;

	}

	/**
	 * Coupon loop shortcode to specific posts or posts from a category.
	 *
	 * @param $atts
	 *
	 * @return string
	 */
	public static function wpaf_coupons_loop_func( $atts ) {
		$output = "";
		$paged  = 1;

		$a = shortcode_atts( array(
			'count' => 9,
			'id'    => '',
			'cat'   => '',
			'vend'  => '',
			'temp'  => ''
		), $atts );

		// phpcs:ignore WordPress.Security.NonceVerification.Missing -- Action discriminator only; nonce verified inside this branch via check_ajax_referer.
		if ( isset( $_POST['action'] ) && 'wpaf_coupons_cat_vend_action' === $_POST['action'] ) {
			if ( ! check_ajax_referer( 'wpaf-security-nonce', 'security' ) ) {
				wp_die();
			}

			// Nonce verified above. Extract POST values, validate, then push the
			// validated values into WordPress query vars so the templates below can
			// read uniformly via get_query_var() without touching $_POST/$_GET.

			$posted_template = isset( $_POST['coupon_template'] ) ? sanitize_text_field( wp_unslash( $_POST['coupon_template'] ) ) : '';
			if ( '' !== $posted_template ) {
				$a['temp'] = $posted_template;
			}

			$posted_count = isset( $_POST['coupon_items_count'] ) ? absint( wp_unslash( $_POST['coupon_items_count'] ) ) : 0;
			if ( $posted_count > 0 ) {
				$a['count'] = $posted_count;
			}

			$posted_paged = isset( $_POST['wpaf_page_num'] ) ? absint( wp_unslash( $_POST['wpaf_page_num'] ) ) : 0;
			if ( $posted_paged > 0 ) {
				$paged = $posted_paged;
			}

			$posted_cat = isset( $_POST['wpaf_data_category_coupons'] ) ? sanitize_text_field( wp_unslash( $_POST['wpaf_data_category_coupons'] ) ) : '';
			if ( '' !== $posted_cat ) {
				$a['cat'] = $posted_cat;
			}

			$posted_vend = isset( $_POST['wpaf_data_vendor_coupons'] ) ? sanitize_text_field( wp_unslash( $_POST['wpaf_data_vendor_coupons'] ) ) : '';
			if ( '' !== $posted_vend ) {
				$a['vend'] = $posted_vend;
			}

			$posted_ven_cat_id = isset( $_POST['wpaf_data_ven_cat_id'] ) ? sanitize_text_field( wp_unslash( $_POST['wpaf_data_ven_cat_id'] ) ) : '';
			if ( '' !== $posted_ven_cat_id ) {
				$a['id'] = $posted_ven_cat_id;
			}

			// Make the validated page number available to downstream templates
			// (hide-coupon* templates) uniformly via get_query_var().
			set_query_var( 'wpaf_page_num', $paged );
		} else {
			wp_enqueue_script( 'wpaf-main-js' );

			// Read pagination from the registered query var (populated by WP from
			// the URL query string). Read-only public param, no nonce required.
			$page_from_url = absint( get_query_var( 'wpaf_page_num' ) );
			if ( $page_from_url > 0 ) {
				$paged = $page_from_url;
			}
		}

		if ( $a['temp'] == '' ) { // vertical style
			$argcss          = 'archive_not_temp';
			$coupon_template = 'shortcode-category';
		} else {
			switch ( $a['temp'] ) {
				case 'one':
					$argcss          = 'archive_one';
					$coupon_template = 'shortcode-category-one';
					break;
				case 'two':
					$argcss          = 'archive_two';
					$coupon_template = 'shortcode-category-two';
					break;
				case 'three':
					$argcss          = 'archive_three';
					$coupon_template = 'shortcode-category-three';
					break;
				case 'seven':
					$argcss          = 'archive_seven';
					$coupon_template = 'shortcode-category-seven';
					break;
				case 'eight':
					$argcss          = 'archive_eight';
					$coupon_template = 'shortcode-category-eight';
					break;
				default :
					$argcss          = 'archive_default';
					$coupon_template = 'shortcode-category-default';
					break;
			}
		}
		if ( WPAF_Amp::wpaf_amp_is() ) {
			WPAF_Amp::instance()->setCss( 'archive_common' );
			WPAF_Amp::instance()->setCss( 'shortcode_common' );
			if ( $argcss == 'archive_default' ) {
				WPAF_Amp::instance()->setCss( 'shortcode_five' );
				WPAF_Amp::instance()->setCss( 'shortcode_six' );
				WPAF_Amp::instance()->setCss( 'shortcode_default' );
			} else {
				WPAF_Amp::instance()->setCss( $argcss );
			}
			$user_stylesheets = WPAF_Assets::wpaf_stylesheets( true );
			WPAF_Amp::instance()->setCss( $user_stylesheets, false );
		}

		if ( ! WPAF_Amp::wpaf_amp_is() && ( ! isset( $_POST['action'] ) || $_POST['action'] != 'wpaf_coupons_cat_vend_action' ) ) {
			global $post;
			$wpaf_data_coupon_page_url = get_page_link( $post->ID );
			$output                    = '<div id="wpaf_coupon_template" wpaf-data-coupon_template="' . esc_attr( $a['temp'] ) . '" '
			                             . 'wpaf-data-coupon_items_count="' . esc_attr( $a["count"] ) . '" wpaf-data-coupon_page_url="' . esc_url( $wpaf_data_coupon_page_url ) . '" '
			                             . 'wpaf-data_category_coupons="' . esc_attr( $a['cat'] ) . '" wpaf-data_vendor_coupons="' . esc_attr( $a['vend'] ) . '" wpaf-data_ven_cat_id="' . esc_attr( $a['id'] ) . '"></div>';
		}

		if ( $a['cat'] || $a['vend'] ) {
			$args = array(
				'post_type'      => 'wpaf_coupons',
				'order'          => 'DESC',
				'posts_per_page' => $a['count'],
				// phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_tax_query -- Required to filter coupons by taxonomy in shortcode output.
				'tax_query'      => array(
					array(
						'taxonomy' => ( $a['cat'] ) ? 'wpaf_coupon_category' : 'wpaf_coupon_vendor',
						'field'    => 'term_id',
						'terms'    => ( $a['cat'] ) ? $a['cat'] : $a['vend'],
					),
				),
				'paged'          => $paged
			);
			} else {
				if ( $a['id'] ) {
					$posts_in = array_map( 'intval', explode( ',', $a['id'] ) );
					$args     = array(
						'post_type'   => 'wpaf_coupons',
						'post_status' => 'publish',
						'post__in'    => $posts_in
					);
				} else {
					$args = array(
						'post_type'      => 'wpaf_coupons',
						'order'          => 'DESC',
						'posts_per_page' => $a['count'],
						'paged'          => $paged,
					);
				}
			}

		if ( empty( $a['temp'] ) ) {
			// phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_meta_query -- Required to exclude image-type coupons from default shortcode listing.
			$args['meta_query'] = array(
				array(
					'key'     => 'coupon_details_coupon-type',
					'value'   => 'Image',
					'compare' => '!='
				)
			);
		}

		// Filter expired coupons before rendering so wrapper/header/footer markup stays balanced.
		$expired_coupons = array();
		$the_query       = new WP_Query( $args );
		if ( $the_query->have_posts() ) {
			$today               = gmdate( 'd-m-Y' );
			$hide_expired_coupon = get_option( 'wpaf_hide-expired-coupon' );

			while ( $the_query->have_posts() ) {
				$the_query->the_post();
				$wpaf_coupon_id = get_the_ID();

				if ( ! empty( $hide_expired_coupon ) || $hide_expired_coupon == "on" ) {
					$expire_date = get_post_meta( $wpaf_coupon_id, 'coupon_details_expire-date', true );
					if ( ! empty( $expire_date ) ) {
						if ( (string) (int) $expire_date != $expire_date ) {
							$expire_date = strtotime( $expire_date );
						}
						if ( $expire_date < strtotime( $today ) ) {
							$expired_coupons[] = $wpaf_coupon_id;
						}
					}
				}
			}
			wp_reset_postdata();
		}

		if ( count( $expired_coupons ) > 0 ) {
			// phpcs:ignore WordPressVIPMinimum.Performance.WPQueryParams.PostNotIn_post__not_in -- Required to exclude expired coupons when 'hide expired' option is enabled.
			$args['post__not_in'] = $expired_coupons;
		}

		$the_query = new WP_Query( $args );

		if ( $the_query->have_posts() ) :

			/**
			 * $wpaf_parent -> print the header and footer of the parent element
			 * $wpaf_max_num_page -> used in pagination
			 * $coupon_template -> the name of template
			 * $num_posts -> number of posts
			 */
			global $wpaf_parent, $wpaf_max_num_page;
			$wpaf_max_num_page = $the_query->max_num_pages;
			$num_posts    = $the_query->post_count;
			$i            = 1;

			while ( $the_query->have_posts() ) : $the_query->the_post();
				global $wpaf_coupon_id;
				$wpaf_parent = "";

				// check to print header or footer.
				if ( $i == 1 && $num_posts !== 1 ) {
					$wpaf_parent = 'header';
				} elseif ( $num_posts == 1 ) {
					$wpaf_parent = 'headerANDfooter';
				} elseif ( $i == $num_posts ) {
					$wpaf_parent = 'footer';
				}

				$template  = new WPAF_Template_Loader();
				$wpaf_coupon_id = get_the_ID();

				ob_start();
				$template->get_template_part( $coupon_template );
				$output .= ob_get_clean();

				$i ++;

			endwhile;
			// end of the loop
			wp_reset_postdata();
		else :
			$output .= '<p>' . esc_html__( 'Sorry, no coupons/deals found.', 'affcoupon' ) . '</p>';
		endif;

			// phpcs:ignore WordPress.Security.NonceVerification.Missing -- Action discriminator only; nonce verified inside this branch via check_ajax_referer.
		if ( isset( $_POST['action'] ) && $_POST['action'] == 'wpaf_coupons_cat_vend_action' ) {
				wp_send_json( $output );
			}

		return $output;

	}

}