🚀 فصل ۱۵: سئو فروشگاه و راه‌اندازی

add_action('wp_head', function() {
    if (!is_product()) return;
    global $product;
    
    $availability = $product->is_in_stock() 
                    ? 'https://schema.org/InStock' 
                    : 'https://schema.org/OutOfStock';
    
    $schema = [
        '@context'    => 'https://schema.org',
        '@type'       => 'Product',
        'name'        => $product->get_name(),
        'description' => wp_strip_all_tags($product->get_short_description() ?: $product->get_description()),
        'sku'         => $product->get_sku(),
        'mpn'         => $product->get_meta('_mpn'),
        'brand'       => [
            '@type' => 'Brand',
            'name'  => $product->get_meta('_brand') ?: get_bloginfo('name'),
        ],
        'image'       => array_filter([
            wp_get_attachment_url($product->get_image_id()),
            ...array_map('wp_get_attachment_url', $product->get_gallery_image_ids())
        ]),
        'offers' => [
            '@type'         => 'Offer',
            'url'           => $product->get_permalink(),
            'priceCurrency' => get_woocommerce_currency(),
            'price'         => $product->get_price(),
            'priceValidUntil' => date('Y-m-d', strtotime('+30 days')),
            'availability'  => $availability,
            'itemCondition' => 'https://schema.org/NewCondition',
            'seller' => [
                '@type' => 'Organization',
                'name'  => get_bloginfo('name'),
            ],
        ],
    ];
    
    // امتیاز محصول (در صورت داشتن)
    if ($product->get_review_count() > 0) {
        $schema['aggregateRating'] = [
            '@type'       => 'AggregateRating',
            'ratingValue' => $product->get_average_rating(),
            'reviewCount' => $product->get_review_count(),
            'bestRating'  => '5',
            'worstRating' => '1',
        ];
        
        // نمونه نظرات
        $reviews = get_comments([
            'post_id' => $product->get_id(),
            'status'  => 'approve',
            'number'  => 3,
            'type'    => 'review',
        ]);
        
        $review_schemas = [];
        foreach ($reviews as $review) {
            $rating = get_comment_meta($review->comment_ID, 'rating', true);
            $review_schemas[] = [
                '@type' => 'Review',
                'reviewRating' => [
                    '@type' => 'Rating',
                    'ratingValue' => $rating,
                    'bestRating'  => '5',
                ],
                'author' => [
                    '@type' => 'Person',
                    'name'  => $review->comment_author,
                ],
                'reviewBody' => $review->comment_content,
                'datePublished' => $review->comment_date,
            ];
        }
        
        if ($review_schemas) {
            $schema['review'] = $review_schemas;
        }
    }
    
    echo '';
});

add_action('wp_head', function() {
    if (!is_singular(['product', 'page', 'post']) && !is_archive()) return;
    
    $breadcrumbs = [
        ['@type' => 'ListItem', 'position' => 1, 'name' => 'خانه', 'item' => home_url()],
    ];
    
    if (is_product()) {
        global $post;
        $cats = wp_get_post_terms($post->ID, 'product_cat');
        if (!empty($cats)) {
            $cat = $cats[0];
            $breadcrumbs[] = [
                '@type' => 'ListItem',
                'position' => 2,
                'name' => $cat->name,
                'item' => get_term_link($cat),
            ];
        }
        $breadcrumbs[] = [
            '@type' => 'ListItem',
            'position' => count($breadcrumbs) + 1,
            'name' => get_the_title(),
        ];
    }
    
    echo '';
});

add_action('init', function() {
    add_rewrite_rule('^product-sitemap.xml$', 'index.php?icsd_sitemap=products', 'top');
    add_rewrite_tag('%icsd_sitemap%', '([^&]+)');
});

add_action('template_redirect', function() {
    if (get_query_var('icsd_sitemap') !== 'products') return;
    
    header('Content-Type: application/xml; charset=UTF-8');
    echo '' . "n";
    echo '' . "n";
    
    $products = wc_get_products([
        'limit' => -1,
        'status' => 'publish',
        'return' => 'objects',
    ]);
    
    foreach ($products as $product) {
        echo "  n";
        echo "    " . esc_url($product->get_permalink()) . "n";
        echo "    " . get_post_modified_time('c', false, $product->get_id()) . "n";
        echo "    weeklyn";
        echo "    0.8n";
        
        // تصاویر
        $images = array_merge(
            $product->get_image_id() ? [$product->get_image_id()] : [],
            $product->get_gallery_image_ids()
        );
        foreach ($images as $img_id) {
            echo "    n";
            echo "      " . esc_url(wp_get_attachment_url($img_id)) . "n";
            echo "      " . esc_xml($product->get_name()) . "n";
            echo "    n";
        }
        echo "  n";
    }
    
    echo '';
    exit;
});

✅ خوب:
shop.icsd.ir/product/farsh-dastbaft-isfahan-6m/
shop.icsd.ir/product-category/farsh-dastbaft/

❌ بد:
shop.icsd.ir/?p=12345
shop.icsd.ir/product/فرش-دستباف-اصفهان-۶-متری/  (encoding مشکل دارد)

add_action('wp_head', function() {
    if (!is_product()) return;
    global $product;
    
    $faqs = $product->get_meta('_faqs'); // آرایه [['q' => '...', 'a' => '...']]
    if (empty($faqs)) return;
    
    $items = [];
    foreach ($faqs as $faq) {
        $items[] = [
            '@type' => 'Question',
            'name'  => $faq['q'],
            'acceptedAnswer' => [
                '@type' => 'Answer',
                'text'  => $faq['a'],
            ],
        ];
    }
    
    echo '';
});

add_action('init', function() {
    add_rewrite_rule('^merchant-feed.xml$', 'index.php?icsd_merchant_feed=1', 'top');
});

add_action('template_redirect', function() {
    if (!get_query_var('icsd_merchant_feed')) return;
    
    header('Content-Type: application/xml; charset=UTF-8');
    echo '' . "n";
    echo '' . "n";
    echo "n";
    echo "  n";
    echo "  " . esc_url(home_url()) . "n";
    echo "  محصولات " . esc_xml(get_bloginfo('name')) . "n";
    
    $products = wc_get_products(['limit' => 1000, 'status' => 'publish']);
    
    foreach ($products as $product) {
        if (!$product->is_visible()) continue;
        
        $availability = $product->is_in_stock() ? 'in_stock' : 'out_of_stock';
        $price = $product->get_price() . ' IRR';
        
        echo "  n";
        echo "    " . $product->get_id() . "n";
        echo "    " . esc_xml($product->get_name()) . "n";
        echo "    " . esc_xml(wp_strip_all_tags($product->get_description())) . "n";
        echo "    " . esc_url($product->get_permalink()) . "n";
        echo "    " . esc_url(wp_get_attachment_url($product->get_image_id())) . "n";
        echo "    newn";
        echo "    {$availability}n";
        echo "    {$price}n";
        echo "    " . esc_xml($product->get_meta('_brand') ?: get_bloginfo('name')) . "n";
        echo "    " . esc_xml($product->get_sku()) . "n";
        
        // دسته‌بندی Google
        echo "    1604n"; // Home & Garden > Decor
        
        echo "  n";
    }
    
    echo "n";
    exit;
});