<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9
        http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd">

    <!-- 首页 -->
    <url>
        <loc>http://localhost/zhiyuan/index.php</loc>
        <lastmod><?php echo date('Y-m-d'); ?></lastmod>
        <changefreq>daily</changefreq>
        <priority>1.0</priority>
    </url>

    <!-- 用户登录页面 -->
    <url>
        <loc>http://localhost/zhiyuan/user_login.php</loc>
        <lastmod><?php echo date('Y-m-d'); ?></lastmod>
        <changefreq>monthly</changefreq>
        <priority>0.8</priority>
    </url>

    <!-- 用户注册页面 -->
    <url>
        <loc>http://localhost/zhiyuan/user_register.php</loc>
        <lastmod><?php echo date('Y-m-d'); ?></lastmod>
        <changefreq>monthly</changefreq>
        <priority>0.8</priority>
    </url>

    <!-- 用户中心 -->
    <url>
        <loc>http://localhost/zhiyuan/user_center.php</loc>
        <lastmod><?php echo date('Y-m-d'); ?></lastmod>
        <changefreq>weekly</changefreq>
        <priority>0.7</priority>
    </url>

    <!-- 商品详情页面 -->
    <?php
    require_once 'conn.php';
    try {
        $pdo = new PDO("mysql:host=$DB_HOSTNAME;port=$DB_hostport;dbname=$DB_DATABASE;charset=utf8", $DB_USERNAME, $DB_PASSWORD);
        $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
        
        // 获取所有商品
        $stmt = $pdo->query("SELECT id, mname, update_time FROM think_fl WHERE status = 1 ORDER BY update_time DESC");
        $products = $stmt->fetchAll(PDO::FETCH_ASSOC);
        
        foreach ($products as $product) {
            $lastmod = $product['update_time'] ? date('Y-m-d', $product['update_time']) : date('Y-m-d');
            echo "    <url>\n";
            echo "        <loc>http://localhost/zhiyuan/product_detail.php?id=" . $product['id'] . "</loc>\n";
            echo "        <lastmod>" . $lastmod . "</lastmod>\n";
            echo "        <changefreq>weekly</changefreq>\n";
            echo "        <priority>0.9</priority>\n";
            echo "    </url>\n";
        }
        
        // 获取所有文章
        $stmt = $pdo->query("SELECT id, title, update_time FROM think_articles WHERE status = 1 ORDER BY update_time DESC");
        $articles = $stmt->fetchAll(PDO::FETCH_ASSOC);
        
        foreach ($articles as $article) {
            $lastmod = $article['update_time'] ? date('Y-m-d', $article['update_time']) : date('Y-m-d');
            echo "    <url>\n";
            echo "        <loc>http://localhost/zhiyuan/article_detail.php?id=" . $article['id'] . "</loc>\n";
            echo "        <lastmod>" . $lastmod . "</lastmod>\n";
            echo "        <changefreq>monthly</changefreq>\n";
            echo "        <priority>0.6</priority>\n";
            echo "    </url>\n";
        }
        
        // 获取所有公告
        $stmt = $pdo->query("SELECT id, title, update_time FROM think_notices WHERE status = 1 ORDER BY update_time DESC");
        $notices = $stmt->fetchAll(PDO::FETCH_ASSOC);
        
        foreach ($notices as $notice) {
            $lastmod = $notice['update_time'] ? date('Y-m-d', $notice['update_time']) : date('Y-m-d');
            echo "    <url>\n";
            echo "        <loc>http://localhost/zhiyuan/notice_detail.php?id=" . $notice['id'] . "</loc>\n";
            echo "        <lastmod>" . $lastmod . "</lastmod>\n";
            echo "        <changefreq>monthly</changefreq>\n";
            echo "        <priority>0.5</priority>\n";
            echo "    </url>\n";
        }
        
    } catch (Exception $e) {
        // 如果数据库连接失败，只输出基础页面
    }
    ?>

</urlset>
