// ── PLAYER PiP ────────────────────────────────────────────────────────────────
let hlsInstance = null;

function openPip(channelName, programTitle) {
  const url = getStreamUrl(channelName);
  const pip  = document.getElementById('pip');
  const video = document.getElementById('pipVideo');
  const err  = document.getElementById('pipError');

  document.getElementById('pipChannel').textContent = channelName;
  document.getElementById('pipProgram').textContent = programTitle || '';
  err.style.display = 'none';
  pip.classList.add('visible');

  // Tear down the previous HLS instance before opening another stream.
  if (hlsInstance) { hlsInstance.destroy(); hlsInstance = null; }
  video.src = '';

  if (!url) {
    err.style.display = 'block';
    err.textContent = '⚠ Aucun stream trouvé pour cette chaîne';
    return;
  }

  if (Hls.isSupported()) {
    hlsInstance = new Hls({ enableWorker: false, debug: false });
    hlsInstance.loadSource(url);
    hlsInstance.attachMedia(video);
    hlsInstance.on(Hls.Events.MANIFEST_PARSED, () => {
      console.log('[PiP] Manifest parsed, lecture...');
      video.play().catch(e => console.warn('[PiP] play() refusé:', e));
    });
    hlsInstance.on(Hls.Events.ERROR, (e, data) => {
      console.error('[PiP] HLS error:', data.type, data.details, data.fatal, data.response);
      if (data.fatal) {
        const detail = data.response ? ` (HTTP ${data.response.code})` : ` (${data.details})`;
        err.style.display = 'block';
        err.textContent = '⚠ Erreur de lecture du stream' + detail;
      }
    });
  } else if (video.canPlayType('application/vnd.apple.mpegurl')) {
    // Safari can play HLS natively without hls.js.
    video.src = url;
    video.addEventListener('loadedmetadata', () => video.play().catch(() => {}));
  } else {
    err.style.display = 'block';
    err.textContent = '⚠ HLS non supporté sur ce navigateur';
  }
}

function closePip() {
  const pip = document.getElementById('pip');
  const video = document.getElementById('pipVideo');
  pip.classList.remove('visible');
  if (hlsInstance) { hlsInstance.destroy(); hlsInstance = null; }
  video.pause(); video.src = '';
}