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<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Douyin Video Downloader</title>
  <style>
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    :root {
      --primary: #000000;
      --primary-hover: #333333;
      --secondary: #F8F8F8;
      --background: #FFFFFF;
      --surface: #FFFFFF;
      --text-primary: #000000;
      --text-secondary: #666666;
      --text-tertiary: #999999;
      --border: #E5E5E5;
      --border-hover: #CCCCCC;
      --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
      --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.06);
      --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.08);
      --radius: 8px;
      --radius-lg: 12px;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', 'Inter', sans-serif;
      background: var(--background);
      min-height: 100vh;
      color: var(--text-primary);
      line-height: 1.5;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    .container {
      max-width: 800px;
      margin: 0 auto;
      padding: 4rem 2rem;
    }

    header {
      text-align: center;
      margin-bottom: 3rem;
    }

    h1 {
      font-size: 2rem;
      font-weight: 600;
      letter-spacing: -0.01em;
      margin-bottom: 0.5rem;
      color: var(--text-primary);
    }

    .subtitle {
      color: var(--text-secondary);
      font-size: 0.95rem;
      font-weight: 400;
    }

    .credit {
      margin-top: 2rem;
      font-size: 0.8rem;
      color: var(--text-tertiary);
    }

    .credit a {
      color: var(--text-secondary);
      text-decoration: none;
      transition: color 0.2s ease;
    }

    .credit a:hover {
      color: var(--text-primary);
      text-decoration: underline;
    }

    .main-card {
      background: var(--surface);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      padding: 2.5rem;
    }

    .notice {
      padding: 1rem;
      border-radius: var(--radius);
      font-size: 0.875rem;
      margin-bottom: 1.5rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }

    .cors-notice {
      background: #F8F8F8;
      border: 1px solid var(--border);
      color: var(--text-secondary);
    }

    .success-notice {
      background: #F0F9F0;
      border: 1px solid #D0E7D0;
      color: #2D5A2D;
      display: none;
    }

    .info-box {
      background: #F8F9FA;
      border: 1px solid var(--border);
      color: var(--text-secondary);
    }

    .input-section {
      margin-bottom: 2rem;
    }

    label {
      display: block;
      margin-bottom: 0.5rem;
      font-weight: 500;
      font-size: 0.9rem;
      color: var(--text-primary);
    }

    textarea {
      width: 100%;
      min-height: 140px;
      padding: 0.875rem;
      background: var(--secondary);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      color: var(--text-primary);
      font-size: 0.875rem;
      font-family: 'SF Mono', 'Monaco', 'Inconsolata', monospace;
      resize: vertical;
      transition: all 0.2s ease;
      line-height: 1.5;
    }

    textarea:focus {
      outline: none;
      border-color: var(--text-primary);
      background: var(--surface);
      box-shadow: 0 0 0 1px var(--text-primary);
    }

    textarea::placeholder {
      color: var(--text-tertiary);
    }

    .button-group {
      display: flex;
      gap: 0.5rem;
      margin-top: 1rem;
      flex-wrap: wrap;
    }

    button {
      padding: 0.625rem 1.25rem;
      background: var(--primary);
      color: white;
      border: none;
      border-radius: var(--radius);
      font-size: 0.875rem;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.2s ease;
    }

    button:hover {
      background: var(--primary-hover);
    }

    button.secondary {
      background: var(--secondary);
      color: var(--text-primary);
      border: 1px solid var(--border);
    }

    button.secondary:hover {
      background: var(--surface);
      border-color: var(--border-hover);
    }

    .loading {
      display: none;
      text-align: center;
      padding: 2rem;
    }

    .loading.show {
      display: block;
    }

    .spinner {
      width: 32px;
      height: 32px;
      border: 2px solid var(--border);
      border-top-color: var(--text-primary);
      border-radius: 50%;
      margin: 0 auto 1rem;
      animation: spin 1s linear infinite;
    }

    @keyframes spin {
      to {
        transform: rotate(360deg);
      }
    }

    .message {
      padding: 0.875rem;
      border-radius: var(--radius);
      font-size: 0.875rem;
      margin-top: 1rem;
      display: none;
    }

    .error-message {
      background: #FFF5F5;
      border: 1px solid #FED7D7;
      color: #742A2A;
    }

    .info-message {
      background: #F0F7FF;
      border: 1px solid #BEE3F8;
      color: #2A4365;
    }

    .log-box {
      background: var(--secondary);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 0.875rem;
      margin: 1rem 0;
      font-family: 'SF Mono', 'Monaco', monospace;
      font-size: 0.75rem;
      max-height: 180px;
      overflow-y: auto;
      display: none;
    }

    .log-entry {
      margin: 0.25rem 0;
      color: var(--text-secondary);
    }

    .log-entry.success {
      color: #2D5A2D;
    }

    .log-entry.error {
      color: #742A2A;
    }

    .log-entry.info {
      color: #2A4365;
    }

    .results-section {
      margin-top: 2rem;
      opacity: 0;
      transform: translateY(10px);
      transition: all 0.3s ease;
    }

    .results-section.show {
      opacity: 1;
      transform: translateY(0);
    }

    .results-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 1rem;
      padding-bottom: 0.75rem;
      border-bottom: 1px solid var(--border);
    }

    .results-title {
      font-size: 1.125rem;
      font-weight: 600;
      color: var(--text-primary);
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }

    .copy-all-btn {
      padding: 0.5rem 1rem;
      font-size: 0.8rem;
    }

    .url-list {
      list-style: none;
    }

    .url-item {
      padding: 1rem;
      margin-bottom: 0.5rem;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      display: flex;
      align-items: center;
      gap: 0.75rem;
      transition: all 0.2s ease;
      animation: slideIn 0.3s ease forwards;
      opacity: 0;
    }

    @keyframes slideIn {
      from {
        opacity: 0;
        transform: translateX(-10px);
      }

      to {
        opacity: 1;
        transform: translateX(0);
      }
    }

    .url-item:hover {
      border-color: var(--border-hover);
      box-shadow: var(--shadow-sm);
    }

    .url-content {
      flex: 1;
      word-break: break-all;
      font-family: 'SF Mono', 'Monaco', monospace;
      font-size: 0.8rem;
      color: var(--text-secondary);
    }

    .url-content.v3-link {
      color: var(--text-primary);
      font-weight: 500;
    }

    .copy-btn {
      padding: 0.375rem 0.75rem;
      font-size: 0.75rem;
      background: var(--secondary);
      color: var(--text-primary);
      border: 1px solid var(--border);
      min-width: auto;
    }

    .copy-btn.copied {
      background: #2D5A2D;
      color: white;
      border-color: #2D5A2D;
    }

    .status-indicator {
      width: 5px;
      height: 5px;
      border-radius: 50%;
      margin-left: 0.5rem;
    }

    .status-indicator.success {
      background: #2D5A2D;
    }

    .status-indicator.fallback {
      background: #742A2A;
    }

    .status-indicator.processing {
      background: #744210;
    }

    .quality-badge {
      padding: 0.25rem 0.5rem;
      border-radius: 4px;
      font-size: 0.7rem;
      font-weight: 500;
      margin-left: 0.5rem;
    }

    .quality-badge {
      background: #F0F9F0;
      color: #2D5A2D;
    }

    .quality-badge.fallback {
      background: #FFF5F5;
      color: #742A2A;
    }

    .quality-badge.processing {
      background: #FFFBF0;
      color: #744210;
    }

    @media (max-width: 640px) {
      .container {
        padding: 2rem 1rem;
      }

      h1 {
        font-size: 1.75rem;
      }

      .main-card {
        padding: 1.5rem;
      }

      .button-group {
        flex-direction: column;
      }

      button {
        width: 100%;
      }

      .results-header {
        flex-direction: column;
        gap: 0.75rem;
        align-items: stretch;
      }
    }
  </style>
</head>

<body>
  <div class="container">
    <header>
      <h1>Video Downloader</h1>
      <p class="subtitle">Extract direct download links</p>
      <p class="credit">Built with <a href="https://huggingface.co/spaces/akhaliq/anycoder" target="_blank">anycoder</a>
      </p>
    </header>

    <main class="main-card">
      <div class="notice cors-notice">
        <strong>Enhanced Processing:</strong> Multiple extraction methods applied.
      </div>

      <div class="notice success-notice" id="successNotice">
        <strong>Success!</strong> Links extracted successfully.
      </div>

      <div class="notice info-box">
        <strong>Processing Strategy:</strong>
        <br>1. Extract video ID
        <br>2. Try multiple API endpoints
        <br>3. Parse for download links
        <br>4. Sort by quality
      </div>

      <section class="input-section">
        <label for="urlInput">Enter Video URLs (one per line):</label>
        <textarea
          id="urlInput"
          placeholder="https://www.douyin.com/video/7123456789012345678&#10;https://v.douyin.com/ABCDEFG123456/&#10;https://www.douyin.com/user/987654321?modal_id=7123456789012345678"
        ></textarea>
        <div class="button-group">
          <button onclick="processUrls()">Process URLs</button>
          <button class="secondary" onclick="clearInput()">Clear</button>
          <button class="secondary" onclick="loadSample()">Load Sample</button>
          <button class="secondary" onclick="toggleDebug()">Debug</button>
        </div>
      </section>

      <div class="loading" id="loading">
        <div class="spinner"></div>
        <p>Extracting links...</p>
      </div>

      <div class="message error-message" id="errorMessage"></div>
      <div class="message info-message" id="infoMessage"></div>

      <div class="log-box" id="logBox"></div>

      <section class="results-section" id="resultsSection">
        <div class="results-header">
          <h2 class="results-title">
            Download Links
            <span class="status-indicator success"></span>
          </h2>
          <button class="copy-all-btn" onclick="copyAllUrls()">Copy All</button>
        </div>
        <ul class="url-list" id="urlList"></ul>
      </section>
    </main>
  </div>

  <script>
    let debugMode = false;

    function log(message, type = 'info') {
      if (!debugMode) return;
      
      const logBox = document.getElementById('logBox');
      const entry = document.createElement('div');
      entry.className = `log-entry ${type}`;
      entry.textContent = `[${new Date().toLocaleTimeString()}] ${message}`;
      logBox.appendChild(entry);
      logBox.scrollTop = logBox.scrollHeight;
      console.log(`[${type.toUpperCase()}] ${message}`);
    }

    function toggleDebug() {
      debugMode = !debugMode;
      const logBox = document.getElementById('logBox');
      if (debugMode) {
        logBox.classList.add('show');
        logBox.style.display = 'block';
        log('Debug mode enabled', 'info');
      } else {
        logBox.classList.remove('show');
        logBox.style.display = 'none';
      }
    }

    function urlEncode(str) {
      return encodeURIComponent(str);
    }

    function base64Encode(str) {
      return btoa(unescape(encodeURIComponent(str)));
    }

    function extractVideoId(url) {
      log(`Extracting video ID from: ${url}`, 'info');
      
      const urlObj = new URL(url);
      const modalId = urlObj.searchParams.get('modal_id');
      
      if (modalId) {
        log(`Found modal_id: ${modalId}`, 'success');
        return modalId;
      }
      
      const pathMatch = url.match(/\/video\/(\d+)/);
      if (pathMatch) {
        log(`Found video ID in path: ${pathMatch[1]}`, 'success');
        return pathMatch[1];
      }
      
      log('No video ID found, might be short URL', 'error');
      return null;
    }

    async function processWithSnapdouyin(videoId, originalUrl) {
      log(`Trying snapdouyin API for video ID: ${videoId}`, 'info');
      
      const targetUrl = `https://www.douyin.com/video/${videoId}`;
      const hash = base64Encode(targetUrl) + (targetUrl.length + 1000) + base64Encode('aio-dl');
      
      const endpoints = [
        'https://snapdouyin.app/wp-json/mx-downloader/video-data/',
        'https://snapdouyin.app/wp-json/aio-video-downloader/v1/video-info/',
        'https://snapdouyin.app/api/video-info'
      ];
      
      for (const endpoint of endpoints) {
        try {
          log(`Trying endpoint: ${endpoint}`, 'info');
          
          const response = await fetch(endpoint, {
            method: 'POST',
            headers: {
              'Content-Type': 'application/x-www-form-urlencoded',
              'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36'
            },
            body: `url=${urlEncode(targetUrl)}&hash=${hash}`
          });
          
          if (!response.ok) {
            throw new Error(`HTTP ${response.status}`);
          }
          
          const data = await response.json();
          log(`Response received: ${JSON.stringify(data).substring(0, 200)}...`, 'info');
          
          if (data.medias && data.medias.length > 0) {
            const sortedMedias = data.medias.sort((a, b) => (b.size || 0) - (a.size || 0));
            const best = sortedMedias[0];
            
            if (best.url && best.url.includes('v3')) {
              log(`Found V3 link: ${best.url}`, 'success');
              return {
                url: best.url,
                size: best.size,
                formattedSize: best.formattedSize || `${(best.size / 1000000).toFixed(1)} MB`,
                quality: best.quality || 'V3',
                source: 'snapdouyin'
              };
            }
          }
          
          if (data.video_url) {
            log(`Found video_url: ${data.video_url}`, 'success');
            return {
              url: data.video_url,
              source: 'snapdouyin-alt'
            };
          }
          
        } catch (error) {
          log(`Endpoint ${endpoint} failed: ${error.message}`, 'error');
        }
      }
      
      return null;
    }

    async function processWithAlternative(videoId) {
      log(`Trying alternative API for video ID: ${videoId}`, 'info');
      
      const endpoints = [
        'https://api.douyin.wtf/api',
        'https://douyin.wtf/api',
        'https://tikmate.online/api/douyin'
      ];
      
      for (const endpoint of endpoints) {
        try {
          log(`Trying alternative endpoint: ${endpoint}`, 'info');
          
          const response = await fetch(`${endpoint}?url=https://www.douyin.com/video/${videoId}`, {
            method: 'GET',
            headers: {
              'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36'
            }
          });
          
          if (!response.ok) {
            throw new Error(`HTTP ${response.status}`);
          }
          
          const data = await response.json();
          log(`Alternative API response: ${JSON.stringify(data).substring(0, 200)}...`, 'info');
          
          if (data.data && data.data.play_url) {
            log(`Found play_url in alternative API`, 'success');
            return {
              url: data.data.play_url,
              source: 'alternative'
            };
          }
          
          if (data.video_url) {
            log(`Found video_url in alternative API`, 'success');
            return {
              url: data.video_url,
              source: 'alternative'
            };
          }
          
        } catch (error) {
          log(`Alternative endpoint ${endpoint} failed: ${error.message}`, 'error');
        }
      }
      
      return null;
    }

    async function processWithDirectScraping(videoId) {
      log(`Trying direct scraping approach for video ID: ${videoId}`, 'info');
      
      try {
        const apiUrl = `https://www.iesdouyin.com/share/video/${videoId}/?region=CN&mid=${videoId}`;
        
        const response = await fetch(apiUrl, {
          method: 'GET',
          headers: {
            'User-Agent': 'Mozilla/5.0 (iPhone; CPU iPhone OS 14_0 like Mac OS X) AppleWebKit/605.1.15',
            'Referer': 'https://www.douyin.com/'
          }
        });
        
        if (response.ok) {
          const text = await response.text();
          log(`Page content received, length: ${text.length}`, 'info');
          
          const urlMatch = text.match(/"play_addr":\s*{\s*"url_list":\s*\["([^"]+)"/);
          if (urlMatch && urlMatch[1]) {
            log(`Extracted URL from page: ${urlMatch[1]}`, 'success');
            return {
              url: urlMatch[1].replace(/\\/g, ''),
              source: 'direct-scraping'
            };
          }
        }
      } catch (error) {
        log(`Direct scraping failed: ${error.message}`, 'error');
      }
      
      return null;
    }

    async function processSingleUrl(inputUrl) {
      log(`\n=== Processing URL: ${inputUrl} ===`, 'info');
      
      try {
        let videoId = extractVideoId(inputUrl);
        
        if (!videoId && inputUrl.includes('v.douyin.com')) {
          log('Attempting to resolve short URL', 'info');
          try {
            const response = await fetch(inputUrl, {
              method: 'HEAD',
              redirect: 'manual'
            });
            const location = response.headers.get('location');
            if (location) {
              videoId = extractVideoId(location);
              log(`Resolved short URL to: ${location}`, 'success');
            }
          } catch (error) {
            log('Could not resolve short URL due to CORS', 'error');
          }
        }
        
        if (!videoId) {
          throw new Error('Could not extract video ID');
        }
        
        let result = null;
        
        result = await processWithSnapdouyin(videoId, inputUrl);
        if (result) {
          log('Success with snapdouyin API', 'success');
          return result;
        }
        
        result = await processWithAlternative(videoId);
        if (result) {
          log('Success with alternative API', 'success');
          return result;
        }
        
        result = await processWithDirectScraping(videoId);
        if (result) {
          log('Success with direct scraping', 'success');
          return result;
        }
        
        log('All methods failed, using fallback', 'error');
        const fallbackUrl = `https://snapdouyin.app/#url=${urlEncode(inputUrl)}`;
        return {
          url: fallbackUrl,
          isFallback: true,
          source: 'fallback',
          error: 'Could not extract V3 link'
        };
        
      } catch (error) {
        log(`Processing failed: ${error.message}`, 'error');
        const fallbackUrl = `https://snapdouyin.app/#url=${urlEncode(inputUrl)}`;
        return {
          url: fallbackUrl,
          isFallback: true,
          source: 'error-fallback',
          error: error.message
        };
      }
    }

    async function processUrls() {
      const input = document.getElementById('urlInput').value.trim();
      if (!input) {
        showError('Please enter at least one Douyin URL');
        return;
      }

      const urls = input.split('\n').filter(url => url.trim());
      if (urls.length === 0) {
        showError('Please enter valid URLs');
        return;
      }

      hideMessages();
      document.getElementById('loading').classList.add('show');
      document.getElementById('resultsSection').classList.remove('show');
      document.getElementById('successNotice').classList.remove('show');

      const results = [];
      let successCount = 0;
      
      for (let i = 0; i < urls.length; i++) {
        const url = urls[i].trim();
        log(`\nπŸ”„ Processing URL ${i + 1}/${urls.length}`, 'info');
        
        try {
          const result = await processSingleUrl(url);
          results.push(result);
          
          if (!result.isFallback) {
            successCount++;
          }
          
          if (i < urls.length - 1) {
            await new Promise(resolve => setTimeout(resolve, 1000));
          }
        } catch (error) {
          log(`Failed to process URL ${i + 1}: ${error.message}`, 'error');
          results.push({
            url: `https://snapdouyin.app/#url=${urlEncode(url)}`,
            isFallback: true,
            source: 'catch-fallback',
            error: error.message
          });
        }
      }

      document.getElementById('loading').classList.remove('show');
      displayResults(results, successCount);
      
      if (successCount > 0) {
        document.getElementById('successNotice').classList.add('show');
        document.getElementById('successNotice').style.display = 'flex';
        showInfo(`Successfully extracted ${successCount} link(s) out of ${urls.length} URLs`);
      }
    }

    function displayResults(results, successCount) {
      const urlList = document.getElementById('urlList');
      urlList.innerHTML = '';

      results.forEach((result, index) => {
        const li = document.createElement('li');
        li.className = 'url-item';
        li.style.animationDelay = `${index * 0.05}s}`;
        
        const isFallback = result.isFallback;
        const isV3 = !isFallback && (result.url.includes('v3') || result.quality === 'V3');
        
        let qualityBadge = '';
        let statusClass = 'success';
        
        if (isV3) {
          qualityBadge = `<span class="quality-badge">βœ“ V3 ${result.quality || 'HD'} β€’ ${result.formattedSize || 'Unknown'}</span>`;
        } else if (isFallback) {
          qualityBadge = '<span class="quality-badge fallback">βœ— Fallback</span>';
          statusClass = 'fallback';
        } else {
          qualityBadge = `<span class="quality-badge">βœ“ ${result.quality || 'Unknown'}</span>`;
        }
        
        let sourceInfo = '';
        if (result.source) {
          sourceInfo = `<small style="color: var(--text-tertiary); font-size: 0.7rem;">[${result.source}]</small>`;
        }
        
        const urlContentClass = isV3 ? 'url-content v3-link' : 'url-content';
        
        li.innerHTML = `
          <div class="${urlContentClass}">${result.url}</div>
          ${qualityBadge}
          ${sourceInfo}
          <button class="copy-btn" onclick="copyUrl('${result.url.replace(/'/g, "\\'")}', this)">Copy</button>
          <span class="status-indicator ${statusClass}"></span>
        `;
        
        urlList.appendChild(li);
      });

      document.getElementById('resultsSection').classList.add('show');
    }

    function copyUrl(url, button) {
      navigator.clipboard.writeText(url).then(() => {
        button.textContent = 'βœ“ Copied!';
        button.classList.add('copied');
        setTimeout(() => {
          button.textContent = 'Copy';
          button.classList.remove('copied');
        }, 2000);
      }).catch(err => {
        console.error('Failed to copy:', err);
      });
    }

    function copyAllUrls() {
      const urls = Array.from(document.querySelectorAll('.url-content')).map(el => el.textContent);
      const text = urls.map((url, index) => `${index + 1}. ${url}`).join('\n');
      
      navigator.clipboard.writeText(text).then(() => {
        const button = document.querySelector('.copy-all-btn');
        const originalText = button.textContent;
        button.textContent = 'βœ“ Copied All!';
        button.style.background = '#2D5A2D';
        button.style.color = 'white';
        setTimeout(() => {
          button.textContent = originalText;
          button.style.background = '';
          button.style.color = '';
        }, 2000);
      }).catch(err => {
        console.error('Failed to copy all:', err);
      });
    }

    function clearInput() {
      document.getElementById('urlInput').value = '';
      document.getElementById('resultsSection').classList.remove('show');
      hideMessages();
      if (debugMode) {
        document.getElementById('logBox').innerHTML = '';
        log('Debug mode enabled', 'info');
      }
    }

    function loadSample() {
      const sampleUrls = `https://www.douyin.com/video/7300000012345678901?modal_id=7300000012345678901
https://v.douyin.com/ieFQDjC/
https://www.douyin.com/video/7300000023456789012
https://www.douyin.com/user/MS4wLjABAAAA5rOKyL98?modal_id=7300000034567890123`;
      document.getElementById('urlInput').value = sampleUrls;
    }

    function showError(message) {
      hideMessages();
      const errorElement = document.getElementById('errorMessage');
      errorElement.textContent = message;
      errorElement.style.display = 'block';
    }

    function showInfo(message) {
      hideMessages();
      const infoElement = document.getElementById('infoMessage');
      infoElement.textContent = message;
      infoElement.style.display = 'block';
    }

    function hideMessages() {
      document.getElementById('errorMessage').style.display = 'none';
      document.getElementById('infoMessage').style.display = 'none';
      document.getElementById('successNotice').classList.remove('show');
      document.getElementById('successNotice').style.display = 'none';
    }

    document.getElementById('urlInput').addEventListener('keydown', function(e) {
      if (e.ctrlKey && e.key === 'Enter') {
        processUrls();
      }
      if (e.ctrlKey && e.key === 'l') {
        e.preventDefault();
        clearInput();
      }
      if (e.ctrlKey && e.key === 'd') {
        e.preventDefault();
        toggleDebug();
      }
    });

    console.log('Video Downloader Ready');
  </script>
</body>

</html>