function initMiniPlayer() {
  const player = document.querySelector("mini-player");
  if (!player) return;

  const audio = player.querySelector("audio");
  const playBtn = player.querySelector('button[data-action="play"]');
  const prevBtn = player.querySelector('button[data-action="prev"]');
  const nextBtn = player.querySelector('button[data-action="next"]');
  const playIcon = playBtn.querySelector(".play-icon");
  const pauseIcon = playBtn.querySelector(".pause-icon");
  const progressInput = player.querySelector(".progress-input");
  const volumeInput = player.querySelector(".volume-input");
  const currentTimeEl = player.querySelector("current-time");
  const durationTimeEl = player.querySelector("duration-time");
  const trackTitleEl = player.querySelector("track-title");
  const trackArtistEl = player.querySelector("track-artist");

  let currentTrackIndex = 0;
  let isPlaying = false;
  const sources = audio.querySelectorAll("source");
  const tracks = Array.from(sources).map((s) => ({
    src: s.getAttribute("src"),
    title: s.getAttribute("data-title"),
    artist: s.getAttribute("data-artist"),
  }));

  if (!tracks.length) return;

  audio.src = tracks[0].src;
  audio.volume = parseFloat(volumeInput.value) || 0.7;

  const formatTime = (time) => {
    if (isNaN(time)) return "00:00";
    const m = Math.floor(time / 60);
    const s = Math.floor(time % 60);
    return `${m.toString().padStart(2, "0")}:${s.toString().padStart(2, "0")}`;
  };

  const updatePlayState = () => {
    if (isPlaying) {
      playIcon.style.display = "none";
      pauseIcon.style.display = "";
    } else {
      playIcon.style.display = "";
      pauseIcon.style.display = "none";
    }
  };

  const loadTrack = (index) => {
    currentTrackIndex = index;
    audio.src = tracks[index].src;
    audio.currentTime = 0;
    progressInput.value = 0;
    currentTimeEl.textContent = "00:00";
    if (trackTitleEl) trackTitleEl.textContent = tracks[index].title;
    if (trackArtistEl) trackArtistEl.textContent = tracks[index].artist;
    if (isPlaying) audio.play();
  };

  const handlePlayPause = () => {
    if (isPlaying) {
      audio.pause();
    } else {
      audio.play();
    }
    isPlaying = !isPlaying;
    updatePlayState();
  };

  const handlePrev = () => {
    const newIndex = currentTrackIndex === 0 ? tracks.length - 1 : currentTrackIndex - 1;
    loadTrack(newIndex);
  };

  const handleNext = () => {
    const newIndex = currentTrackIndex === tracks.length - 1 ? 0 : currentTrackIndex + 1;
    loadTrack(newIndex);
  };

  playBtn.addEventListener("click", handlePlayPause);
  prevBtn.addEventListener("click", handlePrev);
  nextBtn.addEventListener("click", handleNext);

  audio.addEventListener("loadeddata", () => {
    progressInput.max = audio.duration;
    durationTimeEl.textContent = formatTime(audio.duration);
  });

  audio.addEventListener("timeupdate", () => {
    progressInput.value = audio.currentTime;
    currentTimeEl.textContent = formatTime(audio.currentTime);
  });

  audio.addEventListener("ended", handleNext);

  progressInput.addEventListener("input", (e) => {
    audio.currentTime = parseFloat(e.target.value);
  });

  volumeInput.addEventListener("input", (e) => {
    audio.volume = parseFloat(e.target.value);
  });

  document.addEventListener("keydown", (e) => {
    if (e.target.tagName === "INPUT") return;
    if (e.code === "Space") {
      e.preventDefault();
      handlePlayPause();
    }
  });


  audio.addEventListener("pause", () => {
    isPlaying = false;
    updatePlayState();
  });

  audio.addEventListener("play", () => {
    isPlaying = true;
    updatePlayState();
  });
}

initMiniPlayer();