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<!DOCTYPE html>
<html lang="ja">
<head>
  <meta charset="UTF-8">
  <title>ๅ‹•็”ปใƒ—ใƒฌใ‚คใƒคใƒผ</title>
  <style>
    body {
      display: flex;
      flex-direction: column;
      align-items: center;
      background-color: #f0f0f0;
      font-family: sans-serif;
      padding: 20px;
    }
    video {
      max-width: 100%;
      height: auto;
      margin-bottom: 10px;
    }
    .controls {
      display: flex;
      flex-direction: column;
      gap: 15px;
      width: 100%;
      max-width: 500px;
    }
    .control-group {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
    }
    input[type="range"] {
      flex: 1;
    }
    input[type="number"] {
      width: 60px;
    }
  </style>
</head>
<body>
  <h1>ๅ‹•็”ปใƒ—ใƒฌใ‚คใƒคใƒผ</h1>

  <div class="control-group">
    <label for="videoSelect">ๅ‹•็”ปใฎ้Ÿณ้‡ใ‚’้ธๆŠž๏ผš</label>
    <select id="videoSelect">
      <option value="v.mp4">้€šๅธธ้Ÿณ้‡</option>
      <option value="v-2.mp4">ๅคง้Ÿณ้‡</option>
    </select>
  </div>

  <video id="videoPlayer" src="v.mp4" controls></video>

  <div class="controls">
    <div class="control-group">
      <label for="speedRange">ๅ†็”Ÿ้€Ÿๅบฆ๏ผš</label>
      <input type="range" id="speedRange" min="0.0001" max="5" step="0.0001" value="1">
      <input type="number" id="speedInput" min="0.0001" step="0.0001" value="1">
    </div>

    <div class="control-group">
      <label for="volumeRange">้Ÿณ้‡๏ผš</label>
      <input type="range" id="volumeRange" min="0" max="1" step="0.01" value="1">
      <input type="number" id="volumeInput" min="0" max="1" step="0.01" value="1">
    </div>

    <div class="control-group">
      <label for="loopCheckbox">ใƒซใƒผใƒ—ๅ†็”Ÿ๏ผš</label>
      <input type="checkbox" id="loopCheckbox" checked>
    </div>

    <button onclick="goFullscreen()">ๅ…จ็”ป้ข</button>
  </div>

<script>
  const video = document.getElementById('videoPlayer');
  const videoSelect = document.getElementById('videoSelect');
  const speedRange = document.getElementById('speedRange');
  const speedInput = document.getElementById('speedInput');
  const volumeRange = document.getElementById('volumeRange');
  const volumeInput = document.getElementById('volumeInput');
  const loopCheckbox = document.getElementById('loopCheckbox');

  function updatePlaybackRate(value) {
    const speed = parseFloat(value);
    speedInput.value = speed;
    speedRange.value = speed;
    video.playbackRate = speed;
  }

  function updateVolume(value) {
    const volume = parseFloat(value);
    volumeInput.value = volume;
    volumeRange.value = volume;
    video.volume = volume;
  }

  function handleVideoChange() {
    const selected = videoSelect.value;

    if (selected === 'v-2.mp4') {
      const confirmPlay = confirm("ใ“ใฎๅ‹•็”ปใฏ้Ÿณ้‡ใŒๅคงใใ„ใงใ™ใ€‚ใ‚ใ‚‰ใ‹ใ˜ใ‚ใ€ใƒ‡ใƒใ‚คใ‚นใฎ้Ÿณ้‡ใ‚’ใ‚ใ‚‹็จ‹ๅบฆไธ‹ใ’ใฆใใ ใ•ใ„ใ€‚ใพใŸใ€้Ÿณๅ‰ฒใ‚ŒใŒ่ตทใใพใ™ใ€‚ๅ†็”Ÿใ—ใฆใ‚‚ใ‚ˆใ‚ใ—ใ„ใงใ™ใ‹๏ผŸ");
      if (!confirmPlay) {
        videoSelect.value = video.src.split('/').pop(); // ๅ…ƒใซๆˆปใ™
        return;
      }
    }

    video.src = selected;
    video.load();
    video.play();
  }

  videoSelect.addEventListener('change', handleVideoChange);

  ['input', 'change', 'mouseup'].forEach(eventName => {
    speedRange.addEventListener(eventName, () => updatePlaybackRate(speedRange.value));
    volumeRange.addEventListener(eventName, () => updateVolume(volumeRange.value));
  });

  speedInput.addEventListener('input', () => updatePlaybackRate(speedInput.value));
  volumeInput.addEventListener('input', () => updateVolume(volumeInput.value));

  loopCheckbox.addEventListener('change', () => {
    video.loop = loopCheckbox.checked;
  });

  function goFullscreen() {
    if (video.requestFullscreen) {
      video.requestFullscreen();
    } else if (video.webkitRequestFullscreen) {
      video.webkitRequestFullscreen();
    } else if (video.msRequestFullscreen) {
      video.msRequestFullscreen();
    }
  }

  video.addEventListener('loadedmetadata', () => {
    updatePlaybackRate(speedRange.value);
    updateVolume(volumeRange.value);
    video.loop = loopCheckbox.checked;
  });
</script>
</body>
</html>