/*!
 * artplayer-plugin-audio-track.js v1.0.2
 * Github: https://github.com/zhw2590582/ArtPlayer
 * (c) 2017-2026 Harvey Zhao
 * Released under the MIT License.
 */
function artplayerPluginAudioTrack(option) {
  return (art) => {
    let { url, offset = 0, sync = 0.3 } = option;
    const audio = new Audio();
    audio.preload = "auto";
    if (url) {
      audio.src = url;
    }
    function syncAudio() {
      if (!art.video || !url)
        return;
      const videoTime = art.currentTime;
      const targetTime = videoTime + offset;
      if (Math.abs(audio.currentTime - targetTime) > sync) {
        audio.currentTime = targetTime;
      }
    }
    art.on("play", () => {
      if (!url)
        return;
      syncAudio();
      audio.play().catch((err) => {
        console.warn(err);
      });
    });
    art.on("pause", () => {
      audio.pause();
    });
    art.on("seek", () => {
      syncAudio();
    });
    art.on("video:timeupdate", () => {
      if (art.playing) {
        syncAudio();
      }
    });
    art.on("video:ratechange", () => {
      audio.playbackRate = art.video.playbackRate;
    });
    art.on("video:volumechange", () => {
      audio.volume = art.volume;
      audio.muted = art.muted;
    });
    art.on("video:waiting", () => {
      audio.pause();
    });
    art.on("video:playing", () => {
      if (url && art.playing) {
        audio.play().catch((err) => {
          console.warn(err);
        });
      }
    });
    art.on("destroy", () => {
      audio.pause();
      audio.src = "";
      audio.load();
    });
    function update(newOption) {
      if (newOption.url && newOption.url !== url) {
        url = newOption.url;
        audio.src = url;
        if (art.playing) {
          audio.play().catch((err) => console.warn(err));
        }
      }
      if (newOption.offset !== void 0) {
        offset = newOption.offset;
      }
      if (newOption.sync !== void 0) {
        sync = newOption.sync;
      }
    }
    audio.volume = art.volume;
    audio.muted = art.muted;
    audio.playbackRate = art.video?.playbackRate || 1;
    return {
      name: "artplayerPluginAudioTrack",
      audio,
      update
    };
  };
}
if (typeof window !== "undefined") {
  window.artplayerPluginAudioTrack = artplayerPluginAudioTrack;
}
export {
  artplayerPluginAudioTrack as default
};