<?xml version="1.0" encoding="UTF-8"?>
<?php
// 糖心Vlog - 动态Sitemap
// 域名从请求Host动态获取，禁止写死
header('Content-Type: application/xml; charset=UTF-8');
$host = isset($_SERVER['HTTP_HOST']) ? htmlspecialchars($_SERVER['HTTP_HOST']) : 'localhost';
$scheme = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') ? 'https' : 'http';
$base = $scheme . '://' . $host;
$today = date('Y-m-d');
$pages = [
  ['loc' => '/',          'priority' => '1.0', 'changefreq' => 'daily'],
  ['loc' => '/videos',    'priority' => '0.9', 'changefreq' => 'daily'],
  ['loc' => '/about',     'priority' => '0.7', 'changefreq' => 'monthly'],
  ['loc' => '/contact',   'priority' => '0.6', 'changefreq' => 'monthly'],
];
echo '<?xml version="1.0" encoding="UTF-8"?>' . "\n";
echo '<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
        xmlns:video="http://www.google.com/schemas/sitemap-video/1.1"
        xmlns:image="http://www.google.com/schemas/sitemap-image/1.1">' . "\n";
foreach($pages as $p) {
  echo "  <url>\n";
  echo "    <loc>{$base}{$p['loc']}</loc>\n";
  echo "    <lastmod>{$today}</lastmod>\n";
  echo "    <changefreq>{$p['changefreq']}</changefreq>\n";
  echo "    <priority>{$p['priority']}</priority>\n";
  // 视频页面附加视频信息
  if($p['loc'] === '/videos') {
    $videos = [
      ['title'=>'清晨的第一缕阳光 | 糖心Vlog手冲咖啡视频教程','thumb'=>'video-thumb-1.jpg','desc'=>'糖心Vlog生活视频教程，记录手冲咖啡师的温暖早晨'],
      ['title'=>'山林间的木作时光 | 糖心Vlog手工视频教程','thumb'=>'video-thumb-2.jpg','desc'=>'糖心Vlog手工艺视频演示，跟随老木匠见证木作技艺'],
      ['title'=>'野花与四季 | 糖心Vlog插花生活视频','thumb'=>'video-thumb-3.jpg','desc'=>'糖心Vlog慢生活视频，用野花创作自然美学'],
    ];
    foreach($videos as $v) {
      echo "    <video:video>\n";
      echo "      <video:thumbnail_loc>{$base}/assets/images/{$v['thumb']}</video:thumbnail_loc>\n";
      echo "      <video:title>{$v['title']}</video:title>\n";
      echo "      <video:description>{$v['desc']}</video:description>\n";
      echo "      <video:content_loc>{$base}/videos</video:content_loc>\n";
      echo "      <video:publication_date>{$today}</video:publication_date>\n";
      echo "    </video:video>\n";
    }
  }
  // 首页附加图片信息
  if($p['loc'] === '/') {
    echo "    <image:image>\n";
    echo "      <image:loc>{$base}/assets/images/hero-banner.jpg</image:loc>\n";
    echo "      <image:title>糖心Vlog品牌主视觉 - 温暖治愈的生活美学</image:title>\n";
    echo "      <image:caption>糖心Vlog官方网站主视觉图，来自{$host}</image:caption>\n";
    echo "    </image:image>\n";
  }
  echo "  </url>\n";
}
echo '</urlset>';
exit;
?>
