(function () {
  var sources = window.__PLAY_SOURCES__ || [];
  var video = document.getElementById('video');
  var hls = null;
  var currentSource = 0;

  function play(url) {
    if (!url) return;
    if (hls) { hls.destroy(); hls = null; }

    if (url.indexOf('.m3u8') !== -1 && window.Hls && window.Hls.isSupported()) {
      hls = new Hls();
      hls.loadSource(url);
      hls.attachMedia(video);
      hls.on(Hls.Events.MANIFEST_PARSED, function () { video.play().catch(function () {}); });
    } else {
      video.src = url;
      video.play().catch(function () {});
    }
  }

  // 切换线路
  var tabs = document.querySelectorAll('.source-tab');
  var groups = document.querySelectorAll('.episode-group');
  tabs.forEach(function (tab) {
    tab.addEventListener('click', function () {
      tabs.forEach(function (t) { t.classList.remove('active'); });
      tab.classList.add('active');
      var idx = parseInt(tab.getAttribute('data-idx'), 10);
      currentSource = idx;
      groups.forEach(function (g) {
        g.style.display = parseInt(g.getAttribute('data-idx'), 10) === idx ? 'flex' : 'none';
      });
    });
  });

  // 点击剧集
  document.querySelectorAll('.ep-btn').forEach(function (btn) {
    btn.addEventListener('click', function () {
      var url = btn.getAttribute('data-url');
      play(url);
    });
  });

  // 自动播放第一集
  if (sources.length && sources[0].episodes && sources[0].episodes.length) {
    play(sources[0].episodes[0].url);
  }
})();