编辑文件 - product-ajax-search.php

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路径: /home/h359620/public_html/wp-content/themes/datis/inc/includes/product-ajax-search.php
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<?php
if (!defined('ABSPATH')) {
 exit;
}

if (!class_exists('Datis_Product_Ajax_Search_Handler')) {

class Datis_Product_Ajax_Search_Handler
    {
        /**
         * @var Datis_Product_Ajax_Search_Handler|null
         */
        private static $instance = null;

private function __construct()
        {
            $this->init_hooks();
        }

private function init_hooks()
        {
            // AJAX handlers (logged-in + guest)
            add_action('wp_ajax_datis_product_ajax_search',        [$this, 'handle_ajax']);
            add_action('wp_ajax_nopriv_datis_product_ajax_search', [$this, 'handle_ajax']);

// Localize script
            add_action('wp_enqueue_scripts',                        [$this, 'localize_script'], 20);
            add_action('elementor/frontend/before_enqueue_scripts', [$this, 'localize_script'], 20);
            add_action('elementor/editor/before_enqueue_scripts',   [$this, 'localize_script'], 20);
        }

public function localize_script()
        {
            // اگر اسکریپت ثبت/انکیو نشده بود هیچ کاری نکن
            if (!wp_script_is('datis-product-ajax-search', 'registered') && !wp_script_is('datis-product-ajax-search', 'enqueued')) {
                return;
            }

wp_localize_script(
                'datis-product-ajax-search',
                'DatisProductSearch',
                [
                    'ajax_url' => admin_url('admin-ajax.php'),
                    'nonce'    => wp_create_nonce('datis_product_ajax_search'),
                    'i18n'     => [
                        'results_label' => __('Search results', 'datis'),
                        'start_typing'  => __('Start typing to search…', 'datis'),
                        'no_results'    => __('No results found.', 'datis'),
                        'ajax_error'    => __('Search failed. Please try again.', 'datis'),
                    ],
                ]
            );
        }

private function highlight_term($text, $term)
        {
            $term = trim(wp_strip_all_tags($term));
            if ($term === '') {
                return esc_html($text);
            }

$safe = esc_html($text);
 $pattern = '/' . preg_quote($term, '/') . '/iu';
 return preg_replace($pattern, '$0', $safe);
 }

public function handle_ajax()
        {
            if (!function_exists('WC')) {
                wp_send_json_error(['message' => __('WooCommerce is not active.', 'datis')]);
            }

// Security
            if (!isset($_POST['nonce']) || !wp_verify_nonce(sanitize_text_field(wp_unslash($_POST['nonce'])), 'datis_product_ajax_search')) {
                wp_send_json_error(['message' => __('Security check failed.', 'datis')]);
            }

$term  = isset($_POST['term']) ? sanitize_text_field(wp_unslash($_POST['term'])) : '';
            $tab   = isset($_POST['tab']) ? sanitize_key(wp_unslash($_POST['tab'])) : 'all';
            $limit = isset($_POST['limit']) ? (int) $_POST['limit'] : 8;

$term = trim($term);
            $limit = max(1, min(50, $limit));

if ($term === '') {
                wp_send_json_success([
                    'count'   => 0,
                    'html'    => '',
                    'all_url' => wc_get_page_permalink('shop'),
                ]);
            }

$args = [
                'post_type'           => 'product',
                'post_status'         => 'publish',
                's'                   => $term,
                'posts_per_page'      => $limit,
                'ignore_sticky_posts' => true,
                'no_found_rows'       => false,
            ];

// Tab filtering/sorting
            if ($tab === 'newest') {
                $args['orderby'] = 'date';
                $args['order']   = 'DESC';
            } elseif ($tab === 'best') {
                $args['meta_key'] = 'total_sales';
                $args['orderby']  = 'meta_value_num';
                $args['order']    = 'DESC';
            } elseif ($tab === 'sale') {
                $sale_ids = wc_get_product_ids_on_sale();
                if (empty($sale_ids)) {
                    $sale_ids = [0];
                }
                $args['post__in'] = $sale_ids;
                $args['orderby']  = 'date';
                $args['order']    = 'DESC';
            }

$q = new WP_Query($args);

$items_html = '';

if ($q->have_posts()) {
                while ($q->have_posts()) {
                    $q->the_post();

$product_id = get_the_ID();
                    $product = wc_get_product($product_id);
                    if (!$product) {
                        continue;
                    }

$title = get_the_title($product_id);
                    $url   = get_permalink($product_id);

$badge = '';
                    if ($product->is_featured()) {
                        $badge = __('Suggested', 'datis');
                    } elseif ($product->is_on_sale()) {
                        $badge = __('On sale', 'datis');
                    }

$title_html = $this->highlight_term($title, $term);

$items_html .= '<a href="' . esc_url($url) . '" class="result-item">';
 if ($badge !== '') {
 $items_html .= '' . esc_html($badge) . '';
 }
 $items_html .= '' . $title_html . '';
 $items_html .= '</a>';
 }
 wp_reset_postdata();
 }

$count = (int) $q->found_posts;

$base = wc_get_page_permalink('shop');
            $all_url = add_query_arg(
                [
                    's'         => $term,
                    'post_type' => 'product',
                ],
                $base
            );

if ($tab === 'newest') {
                $all_url = add_query_arg(['orderby' => 'date'], $all_url);
            } elseif ($tab === 'best') {
                $all_url = add_query_arg(['orderby' => 'popularity'], $all_url);
            } elseif ($tab === 'sale') {
                $all_url = add_query_arg(['on_sale' => 1], $all_url);
            }

wp_send_json_success([
                'count'   => $count,
                'html'    => $items_html,
                'all_url' => esc_url_raw($all_url),
            ]);
        }

public static function get_instance()
        {
            if (is_null(self::$instance)) {
                self::$instance = new self();
            }
            return self::$instance;
        }
    }

// Boot
    Datis_Product_Ajax_Search_Handler::get_instance();
}

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