
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Watch Brands</title>
  <style>
    /* Existing CSS */
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    body {
      font-family: Arial, sans-serif;
    }
    .navbar {
      position: fixed;
      top: 0;
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 10px 20px;
      background: #111111;
      backdrop-filter: blur(10px);
      z-index: 1000;
    }
    .menu-icon {
      font-size: 36px;
      cursor: pointer;
      padding: 12px;
      border-radius: 5px;
      background-color: #111111;
      color: #FFFFFF; 
      transition: background-color 0.3s, transform 0.3s;
    }
    .menu-icon:hover {
      background-color: #DDDDDD;
      color: #ffffff;
      transform: scale(1.1);
    }
    .whatsapp-icon {
      width: 36px;
      height: 36px;
      margin-left: 10px;
    }
    .welcome-section {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 100px 20px 20px;
      text-align: center;
      background-color: #f0f0f0;
    }
    .welcome-text {
      font-size: 24px;
      font-weight: bold;
      color: #ff5733;
    }
    .disclaimer-section {
      padding: 20px;
      background-color: #FFF0F5 ;
      color: #CC66CC;
      font-size: 18px;
      text-align: center;
    }
    .related-section {
      padding: 20px;
      text-align: center;
      background-color: #CBFAFB;/* FAQ背景颜色 */
    }
    .related-section a {
      margin: 0 15px;
      font-size: 20px;
      color: #F2A006 ;
      text-decoration: none;
      transition: color 0.3s;
    }
    .related-section a:hover {
      text-decoration: underline;
      color: #007bff;
    }
    .video-gallery {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 15px;
      padding: 20px;
    }
    .video-container {
      background: linear-gradient(135deg, #1a1a1a, #111111); /* 亮黑色渐变背景 */
      border-bottom: 2px solid #222222; /* 深黑色下边框，增强金属感 */
      border-radius: 10px;
      overflow: hidden;
      text-align: center;
      padding-bottom: 10px;
      box-shadow: 0 1px 8px rgba(0, 0, 0, 0.4), 0 3px 15px rgba(255, 255, 255, 0.3); /* 明亮光阴影，模金属反射光*/
      transition: background 0.3s ease, box-shadow 0.3s ease; /* 背景色和阴影的过渡效果 */
    }
    .video-container:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
    }
    .video-container video {
      width: 100%;
      height: auto;
    }
    .product-style {
      font-size: 16px;
      color: #C0C0C0;
      margin-top: 5px;
    }
    .dropdown-menu {
      display: none;
      position: absolute;
      top: 70px;
      left: 10px;
      background: #e6f7ff;
      border-radius: 8px;
      width: 220px;
      padding: 15px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
      z-index: 999;
    }
    .dropdown-menu a {
      display: block;
      padding: 10px;
      text-decoration: none;
      color: #333;
      border-bottom: 1px solid #ddd;
      transition: background-color 0.3s;
    }
    .dropdown-menu a:hover {
      background-color: #e0f7fa;
    }
    .dropdown-menu a:last-child {
      border-bottom: none;
    }
    .show-menu {
      display: block;
    }
    video {
      width: 100%;
      height: auto;
      max-width: 100%;
      border-radius: 10px;
      object-fit: cover;
    }
    @media only screen and (max-width: 768px) {
      .video-gallery {
        grid-template-columns: repeat(2, 1fr);
      }
    }
  </style>
</head>
<body>

<div class="navbar">
  <div class="nav-item menu-icon" onclick="toggleMenu()">☰</div>
  <a href="/" class="nav-item" style="margin: 0 auto;">
    <img src="qitazp/logo1.png" alt="Home Icon" style="display: block; margin: 0 auto; width: 60px; height: 60px;">
  </a>
  <a href="https://api.whatsapp.com/send?phone=85255606414" target="_blank">
    <img src="https://upload.wikimedia.org/wikipedia/commons/6/6b/WhatsApp.svg" alt="WhatsApp Logo" class="whatsapp-icon">
  </a>
</div>

<div class="welcome-section">
  <div class="welcome-text">Welcome to Mia's website.</div>
</div>

<div class="disclaimer-section" id="disclaimerSection">
  Thank you for visiting. It is recommended that you check the relevant introductions in the following columns before purchasing. So that you can get more information about the product. If you have the style you need, please contact me via WhatsApp above to purchase. Thank you!
</div>

<div class="related-section" id="relatedSection">
  <a href="/pages/faq.html">FAQ</a>  <!-- 跳转到FAQ页面 -->
  <a href="/pages/tobuy.html">How to Buy</a>  <!-- 跳转到How to Buy页面 -->
  <a href="/pages/product.html">About the Product</a>  <!-- 跳转到About the Product页面 -->
</div>

<div class="video-gallery" id="videoGallery">
  <!-- Video containers will be dynamically generated here -->
</div>

<div class="dropdown-menu" id="dropdownMenu">
  <a href="/ppaiml/Rolex.html">Rolex</a>
  <a href="/ppaiml/Omega.html">Omega</a>
  <a href="/ppaiml/IWC.html">IWC</a>
  <a href="/ppaiml/Piaget.html">Piaget</a>
  <a href="/ppaiml/Cartier.html">Cartier</a>
  <a href="/ppaiml/Breitling.html">Breitling</a>
  <a href="/ppaiml/Blancpain.html">Blancpain</a>
  <a href="/ppaiml/Patek Philippe.html">Patek-Philippe</a>
  <a href="/ppaiml/Richard Mille.html">Richard-Mille</a>
  <a href="/ppaiml/Tissot.html">Casiot</a>
  <a href="/ppaiml/Audemars Piguet.html">Audemars Piguet</a>
  <a href="/ppaiml/Vacheron Constantin.html">Vacheron-Constantin</a>
</div>

<div id="loadMoreIndicator" style="height: 50px; background: #f0f0f0; text-align: center;">Loading more...</div>

<script>
  let currentPage = 1; // 当前页数
  let currentBrand = 'zyeki'; // 当前品牌
  let isLoading = false; // 防止重复加载

// Function to toggle the dropdown menu visibility and set its position
function toggleMenu() {
  var menu = document.getElementById("dropdownMenu");
  var menuButton = document.querySelector(".menu-icon");
  var isMenuVisible = menu.classList.contains("show-menu");

  // 获取菜单按钮的位置
  var menuButtonRect = menuButton.getBoundingClientRect();

  // 如果菜单没有显示，则显示菜单并设置位置
  if (!isMenuVisible) {
    menu.classList.add("show-menu");

    // 设置菜单的位置，使其显示在菜单按钮的下方
    menu.style.top = (menuButtonRect.bottom + window.scrollY) + "px"; // 使用 window.scrollY 处理页面滚动
    menu.style.left = menuButtonRect.left + "px"; // 将菜单放置在按钮的左侧

  } else {
    // 如果菜单已经显示，则隐藏菜单
    menu.classList.remove("show-menu");
  }
}

document.addEventListener('DOMContentLoaded', () => {
  // 检查 URL 中是否有品牌参数
  const urlParams = new URLSearchParams(window.location.search);
  const brand = urlParams.get('brand');

  if (brand) {
    // 加载对应品牌的视频
    loadBrandVideos(brand);
  } else {
    // 加载默认品牌的视频
    loadBrandVideos(currentBrand, currentPage); // Load the first 18 videos by default
  }

  // Start observing the loading indicator
  const loadMoreIndicator = document.getElementById('loadMoreIndicator');
  observer.observe(loadMoreIndicator);
});


// 关闭菜单功能：点击菜单外部区域时，隐藏菜单
document.addEventListener("click", function(event) {
  var menu = document.getElementById("dropdownMenu");
  var menuButton = document.querySelector(".menu-icon");

  if (!menu.contains(event.target) && !menuButton.contains(event.target)) {
    menu.classList.remove("show-menu");
  }
});

// 用于显示FAQ页面
function displayFAQ() {
  window.location.href = '/pages/faq.html';  // 在当前页面打开FAQ页面
}

// 用于显示How to Buy页面
function displayHowToBuy() {
  window.location.href = '/pages/tobuy.html';  // 在当前页面打开How to Buy页面
}

// 用于显示About the Product页面
function displayAboutProduct() {
  window.location.href = '/pages/product.html';  // 在当前页面打开About the Product页面
}


// 恢复视频展示区域内容（可选：如加上返回按钮）
function loadBrandVideos(brand, page) {
  const videoGallery = document.getElementById("videoGallery");
  // 这里调用后端 API 以获取指定品牌和页码的视频列表
  fetch(`/videos/${brand}?page=${page}`)
    .then(response => response.json())
    .then(data => {
      let videosHtml = '';
      data.videos.forEach(video => {
        videosHtml += `
          <div class="video-item">
            <video controls>
              <source src="/videos/${brand}/${video}" type="video/mp4">
            </video>
            <p>${video}</p>
          </div>
        `;
      });
      videoGallery.innerHTML = videosHtml;
    })
    .catch(error => console.error('Error loading videos:', error));
}


  // Function to load videos for a selected brand
  function loadBrandVideos(brand, page = 1) {
    if (isLoading) return; // 如果已经在加载，直接返回
    isLoading = true; // 设置为加载中

    console.log(`Loading videos for brand: ${brand}, page: ${page}`); 

    if (page === 1) {
      currentBrand = brand;
      currentPage = 1;
      document.getElementById("videoGallery").innerHTML = ""; // Clear video gallery when a new brand is selected
      observer.unobserve(loadMoreIndicator); // 移除之前的观察器
    }

    const videoGallery = document.getElementById("videoGallery");

    // Fetch the videos from server based on the selected brand and page (pagination limit set to 18 per page)
    fetch(`/videos/${brand}?page=${page}&limit=18`)
      .then(response => {
        if (!response.ok) {
          throw new Error(`HTTP error! status: ${response.status}`);
        }
        return response.json();
      })
      .then(videoFiles => {
        if (videoFiles.length === 0 && page === 1) {
          videoGallery.innerHTML = "<p>No videos available for this brand.</p>";
        } else {
          videoFiles.forEach(fileName => {
            // 检查是否已经存在相同的视频容器
            if (!document.querySelector(`video[src="/videos/${brand}/${fileName}"]`)) {
              const videoContainer = document.createElement("div");
              videoContainer.className = "video-container";

              const videoElement = document.createElement("video");
              videoElement.controls = true;
              videoElement.src = `/videos/${brand}/${fileName}`;
              videoElement.poster = `/posters/${brand}/${fileName.replace('.mp4', '.jpg')}`;
              videoElement.loading = "lazy";

              const productStyle = document.createElement("div");
              productStyle.className = "product-style";
              productStyle.textContent = fileName.replace(/\.[^/.]+$/, '');

              videoContainer.appendChild(videoElement);
              videoContainer.appendChild(productStyle);
              videoGallery.appendChild(videoContainer);
            }
          });
        }
      })
      .catch(error => {
        console.error('Error loading videos:', error);
        videoGallery.innerHTML = "<p style='color: red;'>Failed to load videos. Please try again later.</p>";
      })
      .finally(() => {
        isLoading = false; // 加载完成
        observer.observe(loadMoreIndicator); // 重新观察加载更多指示器
      });
  }

  // Function to load default videos on page load
  function loadDefaultVideos(brand) {
    currentPage = 1; // Reset the current page to 1
    currentBrand = brand; // Set the current brand
    loadBrandVideos(brand, currentPage);
  }

  // Function to load more videos when reaching the bottom
  function loadMoreVideos() {
    if (!isLoading) {
      currentPage++;
      loadBrandVideos(currentBrand, currentPage);
    }
  }

  // Observe the element at the bottom to trigger loading more videos
  const observer = new IntersectionObserver((entries) => {
    entries.forEach(entry => {
      console.log(`IntersectionObserver triggered: isIntersecting=${entry.isIntersecting}`);
      if (entry.isIntersecting) {
        loadMoreVideos();
      }
    });
  }, { threshold: 0.5 });

  document.addEventListener('DOMContentLoaded', () => {
    loadBrandVideos(currentBrand, currentPage); // Load the first 18 videos by default

    // Start observing the loading indicator
    const loadMoreIndicator = document.getElementById('loadMoreIndicator');
    observer.observe(loadMoreIndicator);
  });
// 为每个菜单项添加点击事件，点击后关闭菜单
document.querySelectorAll(".dropdown-menu a").forEach(function(menuItem) {
  menuItem.addEventListener("click", function() {
    document.getElementById("dropdownMenu").classList.remove("show-menu");
  });
});

</script>

</body>
</html>