<?php
/**
 * Kadence Child Theme Functions
 * Theme: MIRAMETAL
 */

/* ============================================
   1. 子主题样式入队
   ============================================ */
add_action('wp_enqueue_scripts', 'kadence_child_enqueue_styles', 20);
function kadence_child_enqueue_styles() {
    wp_enqueue_style('kadence-parent-style', get_template_directory_uri() . '/style.css');
    wp_enqueue_style('kadence-child-style', get_stylesheet_uri(), array('kadence-parent-style'), '1.0.0');
}

/* ============================================
   2. 布局修复：全宽产品列表 + 隐藏侧边栏
   ============================================ */
add_action('wp_head', 'mirametal_fix', 999);
function mirametal_fix() {
    ?>
    <style>
    html, body { background: #fff !important; }
    .woocommerce-shop .site-container,
    .tax-product_cat .site-container,
    .archive.woocommerce .site-container,
    .woocommerce-page .site-container,
    .woocommerce .site-container,
    #page .site-container,
    .site-container, .content-container, .container {
        width: 100% !important;
        max-width: 100% !important;
        padding-left: 20px !important;
        padding-right: 20px !important;
        box-sizing: border-box !important;
    }
    #primary.content-area, .woocommerce #primary, .archive #primary {
        width: 100% !important;
        max-width: 100% !important;
        flex: 0 0 100% !important;
    }
    #secondary, .sidebar, .widget-area { display: none !important; }
    .woocommerce ul.products, .woocommerce-page ul.products, ul.products {
        width: 100% !important;
        display: grid !important;
        grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)) !important;
        gap: 20px !important;
        list-style: none !important;
        padding: 0 !important;
    }
    ul.products li.product {
        width: 100% !important;
        padding: 10px !important;
        float: none !important;
    }
    ul.products li.product img {
        width: 100% !important;
        aspect-ratio: 1/1 !important;
        object-fit: cover !important;
    }
    ul.products li.product .woocommerce-loop-product__title {
        font-size: 15px !important;
        display: -webkit-box !important;
        -webkit-line-clamp: 2 !important;
        -webkit-box-orient: vertical !important;
        overflow: hidden !important;
    }
    ul.products li.product .price {
        font-size: 16px !important;
        font-weight: 600 !important;
    }
    ul.products li.product .button {
        width: 100% !important;
        text-align: center !important;
    }
    @media only screen and (max-width: 767px) {
        .woocommerce ul.products, .woocommerce-page ul.products, ul.products {
            grid-template-columns: repeat(2, 1fr) !important;
            gap: 10px !important;
            padding-left: 6px !important;
            padding-right: 6px !important;
        }
        ul.products li.product { padding: 6px !important; }
        .site-container, .content-container, .container {
            padding-left: 8px !important;
            padding-right: 8px !important;
        }
    }
    </style>
    <?php
}

/* ============================================
   3. Canonical 与 Hreflang 修复
   ============================================ */

/**
 * 产品页：保留 ?lang= 参数的 Canonical
 * 非产品页：移除 ?lang= 参数（避免重复内容）
 */
add_filter('rank_math/frontend/canonical', function($canonical) {
    // 2026-09-07: 英文单语站，canonical 统一不带 ?lang 参数
    return remove_query_arg('lang', $canonical);
}, 999);

/**
 * 2026-09-07 停用（英文单语站）：
 * 原 fix_mira_multilingual_seo 为产品页输出带 ?lang= 的 canonical 与 fr/de/es/it/pt hreflang，
 * 与 robots.txt 的 ?lang 屏蔽冲突 → GSC Blocked by robots.txt 噪音 + 多 canonical 错误。
 * 若未来启用真实多语言（目录式 URL + 真实翻译），按正规方案重建。
 */

/* ============================================
   4. Rank Math BreadcrumbList 修复
   ============================================ */
add_filter('rank_math/schema/breadcrumb', function($data) {
    if (empty($data['itemListElement']) || !is_array($data['itemListElement'])) {
        return $data;
    }
    foreach ($data['itemListElement'] as $key => &$item) {
        if (isset($item['item']) && is_string($item['item'])) {
            $url  = $item['item'];
            $name = 'Home';
            $path = parse_url($url, PHP_URL_PATH);
            if (!empty($path) && $path !== '/') {
                $path     = trim($path, '/');
                $segments = explode('/', $path);
                $last     = end($segments);
                $name     = ucwords(str_replace(['-', '_'], ' ', $last));
            }
            $item['item'] = [
                '@id'  => $url,
                'name' => $name
            ];
        } elseif (isset($item['item']) && is_array($item['item']) && empty($item['item']['name'])) {
            $item['item']['name'] = 'Page';
        }
        if (empty($item['name'])) {
            if (is_array($item['item']) && !empty($item['item']['name'])) {
                $item['name'] = $item['item']['name'];
            } else {
                $item['name'] = 'Page';
            }
        }
    }
    return $data;
}, 999);

/* ============================================
   5. 前端表单（询盘 + 订阅）AJAX
   ============================================ */
add_action('wp_head', 'mirametal_form_assets', 100);
function mirametal_form_assets() {
    $ajax_url = admin_url('admin-ajax.php');
    $nonce    = wp_create_nonce('mirametal_form_nonce');
    echo '<script>
    window.MIRAMETAL_AJAX = {url: "' . esc_js($ajax_url) . '", nonce: "' . esc_js($nonce) . '"};
    document.addEventListener("DOMContentLoaded", function(){
        var md = document.getElementById("mm-md");
        function openM() {
            if (md) { md.style.display = "flex"; document.body.style.overflow = "hidden"; }
        }
        function closeM() {
            if (md) { md.style.display = "none"; document.body.style.overflow = ""; }
        }
        var ob = document.getElementById("mm-open");
        if (ob) ob.addEventListener("click", openM);
        var cb = document.getElementById("mm-close");
        if (cb) cb.addEventListener("click", closeM);
        if (md) md.addEventListener("click", function(e){ if (e.target === md) closeM(); });
        document.addEventListener("keydown", function(e){ if (e.key === "Escape") closeM(); });

        function doSubmit(form, statusEl, type) {
            var btn = form.querySelector("button[type=submit]");
            var fd  = new FormData(form);
            fd.append("action", "mirametal_form");
            fd.append("type", type);
            if (window.MIRAMETAL_AJAX) fd.append("nonce", window.MIRAMETAL_AJAX.nonce);
            var url = (window.MIRAMETAL_AJAX && window.MIRAMETAL_AJAX.url) || "/wp-admin/admin-ajax.php";
            btn.disabled = true;
            var old = btn.textContent;
            btn.textContent = "Sending…";
            fetch(url, {method:"POST", body:fd, credentials:"same-origin"})
            .then(function(r){ return r.json(); })
            .then(function(res){
                if (res && res.success) {
                    statusEl.textContent = (type === "trade") ? "Thank you! We will reach out within 24 hours." : "Thank you for subscribing!";
                    statusEl.style.color = "#7fd17f";
                    form.reset();
                } else {
                    statusEl.textContent = (res && res.data && res.data.message) || "Something went wrong. Please email mirametal@lhpv88.shop";
                    statusEl.style.color = "#e08b8b";
                }
            })
            .catch(function(){
                statusEl.textContent = "Network error. Please email mirametal@lhpv88.shop";
                statusEl.style.color = "#e08b8b";
            })
            .finally(function(){
                btn.disabled = false;
                btn.textContent = old;
            });
        }
        var f  = document.getElementById("mm-form"),  st = document.getElementById("mm-status");
        var s  = document.getElementById("mm-subscribe"), ss = document.getElementById("mm-sub-status");
        if (f && st) f.addEventListener("submit", function(e){ e.preventDefault(); doSubmit(f, st, "trade"); });
        if (s && ss) s.addEventListener("submit", function(e){ e.preventDefault(); doSubmit(s, ss, "subscribe"); });
    });
    </script>' . "\n";
}

add_action('wp_ajax_mirametal_form', 'mirametal_form_handler');
add_action('wp_ajax_nopriv_mirametal_form', 'mirametal_form_handler');
function mirametal_form_handler() {
    check_ajax_referer('mirametal_form_nonce', 'nonce');
    $type = isset($_POST['type']) ? sanitize_text_field(wp_unslash($_POST['type'])) : 'trade';

    if ($type === 'subscribe') {
        $email = isset($_POST['email']) ? sanitize_email(wp_unslash($_POST['email'])) : '';
        if (empty($email) || !is_email($email)) {
            wp_send_json_error(array('message' => 'Please enter a valid email address.'));
        }
        $subject = 'New MIRAMETAL Newsletter Subscriber';
        $body    = "Email: {$email}\n\n-- MIRAMETAL Website";
        $headers = array('Content-Type: text/plain; charset=UTF-8');
        $sent    = wp_mail('mirametal@lhpv88.shop', $subject, $body, $headers);
        if ($sent) {
            wp_send_json_success();
        } else {
            wp_send_json_error(array('message' => 'Subscription failed. Please email mirametal@lhpv88.shop.'));
        }
        return;
    }

    $name     = isset($_POST['name']) ? sanitize_text_field(wp_unslash($_POST['name'])) : '';
    $email    = isset($_POST['email']) ? sanitize_email(wp_unslash($_POST['email'])) : '';
    $country  = isset($_POST['country']) ? sanitize_text_field(wp_unslash($_POST['country'])) : '';
    $interest = isset($_POST['interest']) ? sanitize_text_field(wp_unslash($_POST['interest'])) : '';
    $message  = isset($_POST['message']) ? sanitize_textarea_field(wp_unslash($_POST['message'])) : '';

    if (empty($name) || empty($email) || !is_email($email)) {
        wp_send_json_error(array('message' => 'Please fill in your name and a valid email.'));
    }

    $subject = 'New Trade Inquiry from ' . $name;
    $body    = "Name: {$name}\nEmail: {$email}\nCountry/Region: {$country}\nInterested in: {$interest}\n\nMessage:\n{$message}\n\n-- MIRAMETAL Website";
    $headers = array(
        'Reply-To: ' . $name . ' <' . $email . '>',
        'Content-Type: text/plain; charset=UTF-8',
    );
    $sent = wp_mail('mirametal@lhpv88.shop', $subject, $body, $headers);
    if ($sent) {
        wp_send_json_success(array('message' => 'Thank you!'));
    } else {
        wp_send_json_error(array('message' => 'Submission failed. Please email mirametal@lhpv88.shop.'));
    }
}

/* ============================================
   6. Elementor 产品价格 HTML 转义修复
   ============================================ */
add_action('wp_footer', 'mirametal_fix_product_price_box_html', 20);
function mirametal_fix_product_price_box_html() {
    if (!function_exists('is_product') || !is_product()) return;
    ?>
    <script>
    (function(){
        function mirametalRestorePriceBox(){
            var pb = document.getElementById("productPriceBox");
            if (!pb || !window._mirametalDefaultPriceHtml) return;
            var cur = pb.innerHTML || "";
            if (cur.indexOf("<del") !== -1 || cur.indexOf("<ins") !== -1) {
                pb.innerHTML = window._mirametalDefaultPriceHtml;
            }
        }
        function mirametalBind(){
            if (!window.jQuery) { setTimeout(mirametalBind, 50); return; }
            var jq = window.jQuery;
            var pb = document.getElementById("productPriceBox");
            if (pb) window._mirametalDefaultPriceHtml = pb.innerHTML;
            jq("form.variations_form").on("reset_image.mirametal_fix", function(){
                setTimeout(mirametalRestorePriceBox, 0);
            });
            jq("form.variations_form").on("found_variation.mirametal_fix", function(event, variation){
                if (variation && variation.price_html) {
                    window._mirametalDefaultPriceHtml = variation.price_html;
                }
            });
        }
        if (document.readyState === "loading") {
            document.addEventListener("DOMContentLoaded", mirametalBind);
        } else {
            mirametalBind();
        }
    })();
    </script>
    <?php
}

/* ============================================
   7. 强制 WooCommerce 前台英文
   ============================================ */

add_filter('locale', 'force_woocommerce_english_frontend', 999);
function force_woocommerce_english_frontend($locale) {
    if (!is_admin() || (defined('DOING_AJAX') && DOING_AJAX)) {
        return 'en_US';
    }
    return $locale;
}

add_filter('gettext', 'force_translate_shop_chinese', 999, 3);
add_filter('ngettext', 'force_translate_shop_chinese', 999, 3);
function force_translate_shop_chinese($translated, $text, $domain) {
    if (is_admin() && !(defined('DOING_AJAX') && DOING_AJAX)) {
        return $translated;
    }
    $replace = array(
        '促销中' => 'On Sale',
        '加入购物车' => 'Add to Cart',
        '选择选项' => 'Select Options',
        '添加到购物车' => 'Add to Cart',
        '查看详情' => 'View Details',
        '快速查看' => 'Quick View',
        '比较' => 'Compare',
        ' wishlist' => 'Wishlist',
        '收藏' => 'Wishlist',
        '推荐' => 'Recommend',
        '默认排序' => 'Default sorting',
        '按热门程度排序' => 'Sort by popularity',
        '按评分排序' => 'Sort by average rating',
        '按最新排序' => 'Sort by latest',
        '按价格排序：从低到高' => 'Sort by price: low to high',
        '按价格排序：从高到低' => 'Sort by price: high to low',
        '显示' => 'Showing',
        '个结果' => 'results',
        '显示 1–' => 'Showing 1–',
        '共' => 'of',
        '原价' => 'Regular price',
        '售价' => 'Sale price',
        '不含税' => 'excl. tax',
        '含税' => 'incl. tax',
        '开启安全模式' => 'Safe Mode Enabled',
        '禁用安全模式' => 'Disable Safe Mode',
        '已成功加载编辑器？' => 'Editor loaded successfully?',
        '该问题很可能由您的某个插件或主题引起' => 'This issue is likely caused by a plugin or theme',
        '单击此处进行故障排除' => 'Click here for troubleshooting',
        '仍然遇到问题？' => 'Still having issues?',
        '上一页' => 'Previous',
        '下一页' => 'Next',
        '首页' => 'Home',
        '商店' => 'Shop',
        '产品' => 'Products',
    );
    if (isset($replace[$translated])) {
        return $replace[$translated];
    }
    return $translated;
}

/* ── 7b. 评分评论中文→英文 强制翻译 ──────────── */
add_filter('gettext', 'force_translate_rating_chinese', 9999, 3);
add_filter('ngettext', 'force_translate_rating_chinese', 9999, 3);
function force_translate_rating_chinese($translated, $text, $domain) {
    if (is_admin() && !(defined('DOING_AJAX') && DOING_AJAX)) {
        return $translated;
    }

    $replace = array(
        // 基础评分词汇
        '评分'       => 'Rating',
        '评价'       => 'Reviews',
        '评论'       => 'Reviews',
        '评论 ('     => 'Reviews (',
        '条评价'     => ' reviews',
        '条评论'     => ' reviews',
        '条用户评价'  => ' customer reviews',
        '用户评价'    => 'Customer Reviews',
        '买家评价'    => 'Customer Reviews',
        '客户评价'    => 'Customer Reviews',
        '产品评价'    => 'Product Reviews',
        '商品评价'    => 'Product Reviews',

        // 评分等级
        '好评'       => 'Positive',
        '中评'       => 'Neutral',
        '差评'       => 'Negative',
        '好评率'      => 'Positive Rate',
        '暂无评论'    => 'No reviews yet',
        '暂无评价'    => 'No reviews yet',
        '还没有评论'  => 'No reviews yet',
        '还没有评价'  => 'No reviews yet',
        '还没有评价，来做第一个评价的人吧！' => 'There are no reviews yet.',

        // 星级
        '星级'       => 'Star',
        '一星'       => '1 Star',
        '二星'       => '2 Stars',
        '三星'       => '3 Stars',
        '四星'       => '4 Stars',
        '五星'       => '5 Stars',

        // 评价表单
        '您的评分'    => 'Your Rating',
        '您的评价'    => 'Your Review',
        '写下你的评价' => 'Write your review',
        '添加评价'    => 'Add Review',
        '添加评论'    => 'Add Review',
        '提交评价'    => 'Submit Review',
        '提交评论'    => 'Submit Review',
        '发表评论'    => 'Post Review',
        '发表评价'    => 'Post Review',
        '标题'       => 'Title',
        '内容'       => 'Content',
        '评价内容'    => 'Review Content',
        '评论内容'    => 'Review Content',

        // 排序
        '按评分排序'   => 'Sort by average rating',
        '按评价排序'   => 'Sort by reviews',

        // 相关
        '的相关评价'   => ' reviews',
        '的相关评论'   => ' reviews',
        '基于'        => 'Based on',
    );

    if (isset($replace[$translated])) {
        return $replace[$translated];
    }
    return $translated;
}

add_action('wp_footer', 'force_js_translate_chinese', 999);
function force_js_translate_chinese() {
    if (is_admin()) return;
    ?>
    <script>
    (function() {
        var dict = {
            // 原有翻译
            '促销中': 'On Sale',
            '加入购物车': 'Add to Cart',
            '选择选项': 'Select Options',
            '开启安全模式': 'Safe Mode Enabled',
            '禁用安全模式': 'Disable Safe Mode',
            '已成功加载编辑器': 'Editor Loaded Successfully',
            '该问题很可能由您的某个插件或主题引起': 'This issue is likely caused by a plugin or theme',
            '单击此处进行故障排除': 'Click here for troubleshooting',
            '仍然遇到问题？': 'Still having issues?',
            '推荐': 'Recommend',
            '显示': 'Showing',
            '个结果': 'results',
            '首页': 'Home',
            '商店': 'Shop',

            // 评分评论翻译
            '评分': 'Rating',
            '评价': 'Reviews',
            '评论': 'Reviews',
            '条评价': ' reviews',
            '条评论': ' reviews',
            '暂无评论': 'No reviews yet',
            '暂无评价': 'No reviews yet',
            '还没有评论': 'No reviews yet',
            '还没有评价': 'No reviews yet',
            '买家评价': 'Customer Reviews',
            '客户评价': 'Customer Reviews',
            '产品评价': 'Product Reviews',
            '好评': 'Positive',
            '中评': 'Neutral',
            '差评': 'Negative',
            '好评率': 'Positive Rate',
            '您的评分': 'Your Rating',
            '您的评价': 'Your Review',
            '添加评价': 'Add Review',
            '添加评论': 'Add Review',
            '提交评价': 'Submit Review',
            '提交评论': 'Submit Review',
            '写下你的评价': 'Write your review',
            '基于': 'Based on',
            '五星': '5 Stars',
            '四星': '4 Stars',
            '三星': '3 Stars',
            '二星': '2 Stars',
            '一星': '1 Star',
            '来做第一个评价的人吧': 'Be the first to review'
        };
        function replaceText(node) {
            if (node.nodeType === 3) {
                var text = node.nodeValue;
                for (var cn in dict) {
                    if (text.indexOf(cn) !== -1) {
                        node.nodeValue = text.split(cn).join(dict[cn]);
                    }
                }
            } else {
                for (var i = 0; i < node.childNodes.length; i++) {
                    replaceText(node.childNodes[i]);
                }
            }
        }
        if (document.readyState === 'loading') {
            document.addEventListener('DOMContentLoaded', function() { replaceText(document.body); });
        } else {
            replaceText(document.body);
        }
        var observer = new MutationObserver(function(mutations) {
            mutations.forEach(function(mutation) {
                mutation.addedNodes.forEach(function(node) {
                    if (node.nodeType === 1) replaceText(node);
                });
            });
        });
        observer.observe(document.body, { childList: true, subtree: true });
    })();
    </script>
    <?php
}

add_action('init', 'clear_wc_translation_cache');
function clear_wc_translation_cache() {
    if (!is_admin()) {
        wp_dequeue_script('wc-cart-fragments');
        wp_enqueue_script('wc-cart-fragments');
    }
}

/* ============================================
   8. 导航菜单链接修改
   ============================================ */
add_action('wp_footer', function() {
});

/* ============================================
   9. Noindex 控制
   ============================================ */
add_action('wp_head', 'mira_fix_index_bloat', 1);
function mira_fix_index_bloat() {
    if (isset($_GET['lang']) && !empty($_GET['lang'])) {
        $u = home_url($_SERVER['REQUEST_URI']);
        $b = remove_query_arg('lang', $u);
        echo '<meta name="robots" content="noindex, follow"/>' . "\n";
        echo '<link rel="canonical" href="' . esc_url($b) . '"/>' . "\n";
        return;
    }
    if (function_exists('is_paged') && is_paged()) {
        echo '<meta name="robots" content="noindex, follow"/>' . "\n";
        return;
    }
    if (isset($_GET['orderby']) || isset($_GET['min_price']) || isset($_GET['max_price'])) {
        echo '<meta name="robots" content="noindex, follow"/>' . "\n";
        return;
    }
    if (function_exists('is_search') && is_search()) {
        echo '<meta name="robots" content="noindex, follow"/>' . "\n";
        return;
    }
}

/* ============================================
   10. SEO 综合修复（2026-08-27）
   ============================================ */

// 10.1 HTTP 强制跳转 HTTPS
add_action('template_redirect', function() {
    if (!is_ssl() && !is_admin() && !wp_doing_ajax()) {
        wp_redirect('https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'], 301);
        exit;
    }
}, 1);

// 10.2 备用 Canonical（Rank Math 未启用时）
add_action('wp_head', function() {
    if (class_exists('RankMath')) return;

    if (is_singular()) {
        global $post;
        $canonical = get_permalink($post->ID);
        echo '<link rel="canonical" href="' . esc_url($canonical) . '" />' . "\n";
    } elseif (is_category() || is_tag() || is_tax()) {
        $term      = get_queried_object();
        $term_link = get_term_link($term);
        if (!is_wp_error($term_link)) {
            echo '<link rel="canonical" href="' . esc_url($term_link) . '" />' . "\n";
        }
    } elseif (is_post_type_archive()) {
        $post_type    = get_query_var('post_type');
        $archive_link = get_post_type_archive_link($post_type);
        if ($archive_link) {
            echo '<link rel="canonical" href="' . esc_url($archive_link) . '" />' . "\n";
        }
    } elseif (is_home() || is_front_page()) {
        echo '<link rel="canonical" href="https://mirametaljewelry.com/" />' . "\n";
    }
}, 1);

// 10.3 补充 Product Schema
add_filter('rank_math/json_ld', function($data) {
    if (function_exists('is_product') && is_product() && (!isset($data['Product']) || empty($data['Product']))) {
        $product = wc_get_product(get_the_ID());
        if ($product) {
            $data['Product'] = [
                '@type'         => 'Product',
                'name'          => $product->get_name(),
                'url'           => get_permalink($product->get_id()),
                'description'   => wp_strip_all_tags($product->get_short_description()),
                'sku'           => $product->get_sku(),
                'offers'        => [
                    '@type'         => 'Offer',
                    'price'         => $product->get_price(),
                    'priceCurrency' => get_woocommerce_currency(),
                    'availability'  => $product->is_in_stock() ? 'https://schema.org/InStock' : 'https://schema.org/OutOfStock',
                ]
            ];
        }
    }
    return $data;
}, 999);

// Sync the custom header cart badge with the Store API without editing Elementor.
add_action('wp_footer', function() {
    if (is_admin()) return;
    ?>
    <script>
    jQuery(function($) {
        function mirametalSyncCartBadge() {
            var badge = document.querySelector('.cart-badge');
            if (!badge) return;
            fetch('/wp-json/wc/store/v1/cart', { credentials: 'same-origin' })
                .then(function(response) { return response.ok ? response.json() : null; })
                .then(function(cart) {
                    if (cart && typeof cart.items_count !== 'undefined') {
                        badge.textContent = String(cart.items_count);
                    }
                })
                .catch(function() {});
        }
        mirametalSyncCartBadge();
        $(document.body).on('wc_fragments_refreshed added_to_cart wc_fragments_loaded', mirametalSyncCartBadge);
    });
    </script>
    <?php
}, 99);
// Keep the New Arrivals raw HTML widget intact; wpautop breaks its markup.
add_filter('the_content', function($content) {
    if (is_page(8379)) { remove_filter('the_content', 'wpautop'); }
    return $content;
}, -100);

// 10.4 OpenGraph 与 Twitter Card
add_action('wp_head', function() {
    if (!is_singular()) return;
    if (defined('RANK_MATH_VERSION') || class_exists('RankMath')) return;

    global $post;
    $title       = get_the_title($post->ID);
    $description = wp_strip_all_tags(get_the_excerpt($post->ID));
    $url         = get_permalink($post->ID);
    $image       = get_the_post_thumbnail_url($post->ID, 'full');

    echo '<meta property="og:type" content="article" />' . "\n";
    echo '<meta property="og:title" content="' . esc_attr($title) . '" />' . "\n";
    echo '<meta property="og:description" content="' . esc_attr($description) . '" />' . "\n";
    echo '<meta property="og:url" content="' . esc_url($url) . '" />' . "\n";
    if ($image) {
        echo '<meta property="og:image" content="' . esc_url($image) . '" />' . "\n";
    }
    echo '<meta name="twitter:card" content="summary_large_image" />' . "\n";
    echo '<meta name="twitter:title" content="' . esc_attr($title) . '" />' . "\n";
    echo '<meta name="twitter:description" content="' . esc_attr($description) . '" />' . "\n";
    if ($image) {
        echo '<meta name="twitter:image" content="' . esc_url($image) . '" />' . "\n";
    }
}, 1);

// 10.5 robots.txt 站点地图声明
add_filter('robots_txt', function($output) {
    $output .= "Sitemap: https://mirametaljewelry.com/sitemap.xml\n";
    return $output;
});

/* ============================================
   MIRAMETAL 301 重定向 - 重复内容修复
   生成: 2026-09-22 by Codex
   ============================================ */
add_action('template_redirect', 'mirametal_301_redirects');
function mirametal_301_redirects() {
    if (is_admin()) return;
    \ = array(
        '/moissanite-vs-diamond-wholesale/' => '/moissanite-vs-diamond/',
        '/moissanite-vs-diamonds-wholesale/' => '/moissanite-vs-diamond/',
        '/how-to-tell-sterling-silver/' => '/how-to-tell-sterling-silver-real/',
        '/sterling-silver-vs-plated-silver/' => '/sterling-silver-vs-silver-plated/',
        '/sterling-silver-vs-silver-plating/' => '/sterling-silver-vs-silver-plated/',
        '/silver-star-ring-meaning-buying-guide/' => '/silver-star-ring-meaning/',
        '/symbolic-sterling-silver-jewelry-wholesale-guide/' => '/925-sterling-silver-jewelry-wholesale-guide-2026/',
        '/silver-jewelry-wholesale-guide/' => '/925-sterling-silver-jewelry-wholesale-guide-2026/',
        '/the-complete-guide-to-925-sterling-silver-jewelry-in-2026-trends-quality-manufacturing-and-buying-tips/' => '/925-sterling-silver-jewelry-wholesale-guide-2026/',
    );
    \ = rtrim(parse_url(\['REQUEST_URI'], PHP_URL_PATH), '/') . '/';
    if (isset(\[\]) && !is_404()) {
        wp_redirect(home_url(\[\]), 301);
        exit;
    }
}<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="//mirametaljewelry.com/main-sitemap.xsl"?>
<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
	<sitemap>
		<loc>https://mirametaljewelry.com/post-sitemap.xml</loc>
		<lastmod>2026-09-22T01:15:09+00:00</lastmod>
	</sitemap>
	<sitemap>
		<loc>https://mirametaljewelry.com/page-sitemap.xml</loc>
		<lastmod>2026-09-21T12:11:53+00:00</lastmod>
	</sitemap>
	<sitemap>
		<loc>https://mirametaljewelry.com/product-sitemap1.xml</loc>
		<lastmod>2026-09-22T02:09:26+00:00</lastmod>
	</sitemap>
	<sitemap>
		<loc>https://mirametaljewelry.com/product-sitemap2.xml</loc>
		<lastmod>2026-09-22T00:51:46+00:00</lastmod>
	</sitemap>
	<sitemap>
		<loc>https://mirametaljewelry.com/category-sitemap.xml</loc>
		<lastmod>2026-09-22T01:15:09+00:00</lastmod>
	</sitemap>
	<sitemap>
		<loc>https://mirametaljewelry.com/product_cat-sitemap.xml</loc>
		<lastmod>2026-09-22T02:09:26+00:00</lastmod>
	</sitemap>
</sitemapindex>
<!-- XML Sitemap generated by Rank Math SEO Plugin (c) Rank Math - rankmath.com -->