/* Lazy classic chunk; its executing singleton stays pinned until reload. */
(window.YT ||= {}).Remote = (() => {
  const noop = { boot() {}, changed() {} };
  if (!WEB || typeof WebSocket === 'undefined') return noop;

  const HOST_KEY = 'ytpRemoteHost';
  const PAIR_KEY = 'ytpRemotePair';
  const load = (k) => { try { return JSON.parse(localStorage.getItem(k) || 'null'); } catch { return null; } };
  const save = (k, v) => { try { if (v) localStorage.setItem(k, JSON.stringify(v)); else localStorage.removeItem(k); } catch { /* storage blocked */ } };
  const wsUrl = (q) => `${location.protocol === 'https:' ? 'wss' : 'ws'}://${location.host}/ws/remote?${new URLSearchParams(q)}`;
  const newSecret = () => {
    const b = new Uint8Array(32);
    crypto.getRandomValues(b);
    return btoa(String.fromCharCode(...b)).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
  };
  const guessName = (fallback) => {
    const ua = navigator.userAgent || '';
    if (/iPhone/.test(ua)) return 'iPhone';
    if (/iPad/.test(ua)) return 'iPad';
    if (/Android/.test(ua)) return 'Android phone';
    if (/Windows/.test(ua)) return 'Windows PC';
    if (/Mac/.test(ua)) return 'Mac';
    return fallback;
  };
  const clock = (t) => (window.LyricsCore ? LyricsCore.fmtClock(t) : fmtTime(t));

  // ==========================================================================
  // Host (the screen being controlled)
  // ==========================================================================
  const host = { ws: null, remotes: [], code: '', codeExpires: 0, retryMs: 2000, timer: null, lastState: '', lastQueue: '', replaced: false, pending: false };

  function hostCfg() {
    let cfg = load(HOST_KEY);
    if (!cfg || !cfg.secret) cfg = { secret: newSecret(), name: guessName('Desktop'), enabled: false };
    return cfg;
  }

  function hostConnect() {
    const cfg = hostCfg();
    if (!cfg.enabled) return;
    try { if (host.ws) host.ws.close(); } catch { /* already closed */ }
    const ws = new WebSocket(wsUrl({ role: 'host', secret: cfg.secret, name: cfg.name }));
    host.ws = ws;
    host.replaced = false;
    ws.onopen = () => { host.retryMs = 2000; };
    ws.onmessage = (e) => { let m; try { m = JSON.parse(e.data); } catch { return; } onHostMessage(m); };
    ws.onclose = (e) => {
      if (host.ws !== ws) return;
      host.ws = null;
      host.remotes = [];
      renderChip();
      renderHostModal();
      if (e.code === 4000) { host.replaced = true; renderHostModal(); return; } // another tab hosts now
      if (hostCfg().enabled) {
        clearTimeout(host.timer);
        host.timer = setTimeout(hostConnect, host.retryMs);
        host.retryMs = Math.min(host.retryMs * 2, 30000);
      }
    };
  }

  const hostSend = (m) => { if (host.ws && host.ws.readyState === 1) host.ws.send(JSON.stringify(m)); };

  function onHostMessage(m) {
    DirectMedia.attach('remote-host', { send: hostSend, peers: () => host.remotes.map(r => ({ id: r.rid, name: r.name })) });
    if (m.type === 'direct') { DirectMedia.handle('remote-host', m); return; }
    if (m.type === 'hello') {
      host.code = m.code; host.codeExpires = m.codeExpires; host.remotes = m.remotes || [];
      host.lastState = ''; host.lastQueue = '';
      pushState(); pushQueue();
    } else if (m.type === 'code') {
      host.code = m.code; host.codeExpires = m.codeExpires;
    } else if (m.type === 'remotes') {
      host.remotes = m.remotes || [];
      if (m.joined) { toast(`📱 ${m.joined} connected as a remote`); host.lastState = ''; host.lastQueue = ''; pushState(); pushQueue(); }
      if (m.left) toast(`📱 ${m.left} disconnected`);
    } else if (m.type === 'ping') {
      hostSend({ type: 'pong', rid: m.rid, t: m.t });
      return;
    } else if (m.type === 'cmd') {
      runCommand(m);
      return;
    }
    renderChip();
    renderHostModal();
  }

  function stateNow() {
    const meta = current && current.meta;
    const M = Player.master;
    return {
      directAvailable: !!meta && cachedIds.has(meta.id) && DirectMedia.enabled() && data.settings.p2pShare !== false,
      v: meta ? { id: meta.id, title: meta.title || '', channel: meta.channel || '', thumbnail: meta.thumbnail || '' } : null,
      cur: M ? Math.floor((M.currentTime || 0) * 10) / 10 : 0,
      dur: (M && isFinite(M.duration) && M.duration) || (meta && meta.duration) || 0,
      paused: !M || M.paused,
      volume: data.settings.volume ?? 1,
      service: isServiceModeOpen(),
      sleep: sleepTimerRemaining || 0,
      hostName: hostCfg().name,
      // For the presenter screen: this screen's personal lyric offset for the
      // song and the playback speed (to extrapolate between updates).
      off: meta && data.lyricOffsets ? Number(data.lyricOffsets[meta.id]) || 0 : 0,
      rate: (M && M.playbackRate) || 1,
    };
  }

  function pushState(force = false) {
    if (!host.ws || !host.remotes.length) return;
    const st = stateNow();
    const key = JSON.stringify({ ...st, cur: Math.floor(st.cur) });
    if (!force && key === host.lastState) return;
    host.lastState = key;
    hostSend({ type: 'state', state: { ...st, at: Date.now() } });
  }

  function pushQueue() {
    if (!host.ws || !host.remotes.length) return;
    const items = queue.slice(0, 200).map((v) => ({
      id: v.id, title: v.title || '', channel: v.channel || '', duration: v.duration || 0, thumbnail: v.thumbnail || '',
    }));
    const key = queueIndex + '|' + items.map((v) => v.id).join(',');
    if (key === host.lastQueue) return;
    host.lastQueue = key;
    hostSend({ type: 'queue', queue: { items, idx: queueIndex } });
  }

  // Coalesce bursts (play event + renderUpNext + afterLoad) into one push.
  function changed() {
    if (!host.ws || host.pending) return;
    host.pending = true;
    setTimeout(() => { host.pending = false; pushState(); pushQueue(); }, 50);
  }

  const validIdx = (i) => Number.isInteger(i) && i > queueIndex && i < queue.length;

  function runCommand(m) {
    const who = m.from || 'Phone';
    switch (m.cmd) {
      case 'toggle': Player.toggle(); break;
      case 'play': Player.play(); break;
      case 'pause': Player.pause(); break;
      case 'next': playNext(); break;
      case 'prev': playPrev(); break;
      case 'seek': {
        const t = Number(m.t);
        if (isFinite(t) && t >= 0) Player.seek(t);
        break;
      }
      case 'volume': {
        const v = Math.max(0, Math.min(1, Number(m.v)));
        if (!isFinite(v)) break;
        data.settings.volume = v;
        els.volume.value = String(v);
        Player.applyVolume();
        syncMuteIcon();
        persist();
        break;
      }
      case 'jump': {
        const i = Number(m.i);
        if (Number.isInteger(i) && i >= 0 && i < queue.length) { queueIndex = i - 1; playNext(); }
        break;
      }
      case 'remove': {
        const i = Number(m.i);
        if (validIdx(i)) { queue.splice(i, 1); renderUpNext(); }
        break;
      }
      case 'move': {
        const from = Number(m.from), to = Number(m.to);
        if (validIdx(from) && validIdx(to) && from !== to) {
          const [v] = queue.splice(from, 1);
          queue.splice(to, 0, v);
          renderUpNext();
        }
        break;
      }
      case 'add': {
        const v = m.video;
        if (!v || typeof v.id !== 'string' || !isMediaId(v.id)) break;
        const item = slim({ ...v, title: String(v.title || v.id).slice(0, 300), channel: String(v.channel || '').slice(0, 200) });
        if (!current || !queue.length) { playFromList([item], 0, 'remote'); }
        else if (!queue.slice(queueIndex + 1).some((x) => x.id === item.id)) { queue.push(item); renderUpNext(); }
        toast(`📱 ${who} added “${item.title}”`);
        break;
      }
      case 'sleep': {
        const min = Number(m.min) || 0;
        if (min > 0) startSleepTimer(Math.min(min, 240)); else cancelSleepTimer();
        break;
      }
      case 'service':
        if (m.on) enterServiceMode(); else exitServiceMode();
        break;
      default: return;
    }
    changed();
  }

  function startHosting() {
    const cfg = hostCfg();
    cfg.enabled = true;
    save(HOST_KEY, cfg);
    hostConnect();
    renderHostModal();
  }

  function stopHosting() {
    const cfg = hostCfg();
    cfg.enabled = false;
    save(HOST_KEY, cfg);
    clearTimeout(host.timer);
    const ws = host.ws;
    host.ws = null;
    host.remotes = [];
    try { if (ws) ws.close(); } catch { /* gone */ }
    renderChip();
    renderHostModal();
  }

  function unpairAll() {
    hostSend({ type: 'unpair-all' });
    const cfg = hostCfg();
    cfg.secret = newSecret(); // every phone's token was derived from the old one
    save(HOST_KEY, cfg);
    setTimeout(hostConnect, 300);
    toast('All phones unpaired');
  }

  function renderChip() {
    const chip = $('remoteChip');
    if (!chip) return;
    const n = host.remotes.length;
    chip.classList.toggle('hidden', !host.ws || !n);
    if (n) {
      $('remoteChipText').textContent = n === 1
        ? `Remote connected — ${host.remotes[0].name}`
        : `${n} remotes connected`;
    }
  }

  let hostModalOpen = false;
  function renderHostModal() {
    if (!hostModalOpen) return;
    const body = $('modalBody') && $('modalBody').querySelector('.remote-host');
    if (!body) { hostModalOpen = false; return; }
    const cfg = hostCfg();
    const live = !!host.ws;
    const mins = host.codeExpires ? Math.max(0, Math.round((host.codeExpires - Date.now()) / 60000)) : 0;
    body.querySelector('.rh-body').innerHTML = !cfg.enabled ? `
        <p class="modal-text">Let a phone drive this screen — play/pause, seek, volume, the queue and service mode —
          while this computer plays to the TV or speakers. Pairing uses a one-time 6-digit code; nothing to sign in to.</p>`
      : host.replaced ? `<p class="modal-text">Another tab on this computer took over as the remote-controlled screen.</p>`
      : !live ? `<p class="modal-text">Connecting to the server…</p>`
      : `
        <div class="rh-pair">
          <img class="rh-qr" alt="QR code to pair a phone" src="/api/remote/qr/${host.code}" />
          <div>
            <div class="rh-label">Pairing code</div>
            <div class="rh-code">${host.code.slice(0, 3)} ${host.code.slice(3)}</div>
            <div class="rh-sub">Valid ${mins} more min · one use</div>
            <div class="rh-sub">On the phone: open this app → 📱 Remote → <b>Use this phone as a remote</b>, or scan the QR code.</div>
          </div>
        </div>
        <div class="rh-label">Presenter / projector screen</div>
        <div class="rh-present">
          <img class="rh-qr rh-qr-sm" alt="QR code for the presenter screen" src="/api/remote/qr/${host.code}?kind=present" />
          <div>
            <div class="rh-sub">Lyrics-only display that follows this screen. On the projector's computer or TV browser open
              <code>${escapeHtml(location.origin)}/?present=${host.code}</code> (same code), or scan the QR.</div>
            <button class="np-btn" type="button" data-act="present">🖥 Open presenter window here</button>
            <button class="np-btn" type="button" data-act="obs">Copy OBS browser-source URL</button>
          </div>
        </div>
        <div class="rh-label">Connected phones & screens</div>
        ${host.remotes.length ? host.remotes.map((r) => `
          <div class="rh-remote"><span>📱 ${escapeHtml(r.name)}</span><button class="mk-btn" type="button" data-kick="${escapeHtml(r.rid)}" title="Disconnect">✕</button></div>`).join('')
          : '<div class="rh-sub">None yet.</div>'}`;
    const nameIn = body.querySelector('.rh-name');
    if (document.activeElement !== nameIn) nameIn.value = cfg.name;
    body.querySelector('[data-act="start"]').classList.toggle('hidden', cfg.enabled && !host.replaced);
    body.querySelector('[data-act="stop"]').classList.toggle('hidden', !cfg.enabled);
    body.querySelector('[data-act="code"]').classList.toggle('hidden', !live);
    body.querySelector('[data-act="unpair"]').classList.toggle('hidden', !live);
  }

  async function openHostModal() {
    try { await Lazy.load('feature:direct'); } catch(error) { toast(error.message); return; }
    const body = document.createElement('div');
    body.className = 'remote-host';
    body.innerHTML = `
      <div class="rh-body"></div>
      <label class="rh-name-row">This screen's name <input class="rh-name" maxlength="40" /></label>
      <div class="rh-buttons">
        <button class="np-btn" type="button" data-act="start">▶ Start — control from a phone</button>
        <button class="np-btn" type="button" data-act="code">↻ New code</button>
        <button class="np-btn" type="button" data-act="unpair">Unpair all phones</button>
        <button class="np-btn" type="button" data-act="stop">Stop</button>
      </div>`;
    body.addEventListener('click', (e) => {
      const kick = e.target.closest('[data-kick]');
      if (kick) { hostSend({ type: 'kick', rid: kick.dataset.kick }); return; }
      const act = e.target.closest('[data-act]');
      if (!act) return;
      if (act.dataset.act === 'start') startHosting();
      else if (act.dataset.act === 'stop') stopHosting();
      else if (act.dataset.act === 'code') hostSend({ type: 'new-code' });
      else if (act.dataset.act === 'unpair') unpairAll();
      else if (act.dataset.act === 'obs') { navigator.clipboard.writeText(LowerThird.url(location.origin, host.code)).then(() => toast('OBS URL copied'), () => toast('Copy blocked')); }
      else if (act.dataset.act === 'present') {
        // A second window on this computer (drag it to the projector display).
        window.open(`/?present=${host.code}`, 'ytp-presenter', 'popup,width=1280,height=720');
      }
    });
    body.querySelector('.rh-name').addEventListener('change', (e) => {
      const cfg = hostCfg();
      cfg.name = e.target.value.trim().slice(0, 40) || guessName('Desktop');
      save(HOST_KEY, cfg);
      if (cfg.enabled) hostConnect(); // the server learns names on connect
    });
    showModal('📱 Control this screen from a phone', body, [
      { label: 'Done', primary: true, onClick: () => { hostModalOpen = false; closeModal(); } },
    ]);
    hostModalOpen = true;
    renderHostModal();
  }

  // ==========================================================================
  // Remote (this phone drives a host)
  // ==========================================================================
  const rc = { ws: null, open: false, state: null, stateAt: 0, queue: { items: [], idx: -1 }, retry: null, ping: null, seekTimer: null, latency: null, online: false, seeking: false, volTimer: null, drag: null };

  const rcSend = (m) => { if (rc.ws && rc.ws.readyState === 1) rc.ws.send(JSON.stringify(m)); };
  const cmd = (name, args = {}) => rcSend({ type: 'cmd', cmd: name, ...args });

  function setStatus(text, ok = false) {
    $('rvStatus').textContent = text;
    $('rvStatus').classList.toggle('ok', ok);
  }

  function showPairForm(msg = '') {
    $('rvPair').classList.remove('hidden');
    $('rvControl').classList.add('hidden');
    $('rvHostName').textContent = 'Remote';
    setStatus('Not paired');
    $('rvPairMsg').textContent = msg;
    if (!$('rvName').value) $('rvName').value = (load(PAIR_KEY) || {}).name || guessName('Phone');
  }

  function rcConnect() {
    const p = load(PAIR_KEY);
    if (!p || !rc.open) return;
    clearTimeout(rc.retry);
    try { if (rc.ws) rc.ws.close(); } catch { /* gone */ }
    $('rvPair').classList.add('hidden');
    $('rvControl').classList.remove('hidden');
    $('rvHostName').textContent = p.hostName || 'Screen';
    setStatus('Connecting…');
    const ws = new WebSocket(wsUrl({ role: 'remote', room: p.roomId, rid: p.remoteId, token: p.token, name: p.name || guessName('Phone') }));
    rc.ws = ws;
    ws.onmessage = (e) => { let m; try { m = JSON.parse(e.data); } catch { return; } onRemoteMessage(m); };
    ws.onclose = (e) => {
      if (rc.ws !== ws) return;
      rc.ws = null;
      rc.online = false;
      clearInterval(rc.ping);
      if (e.code === 4001) { save(PAIR_KEY, null); showPairForm('This phone was unpaired by the screen — pair again.'); return; }
      if (!rc.open) return;
      setStatus(e.code === 4004 ? 'Screen offline — retrying…' : 'Reconnecting…');
      rc.retry = setTimeout(rcConnect, 4000);
    };
  }

  function onRemoteMessage(m) {
    DirectMedia.attach('remote-client', { send: rcSend, peers: () => [{ id: 'host', name: 'Paired screen', files: rc.state?.directAvailable && rc.state?.v ? [rc.state.v.id] : [] }] });
    if (m.type === 'direct') { DirectMedia.handle('remote-client', m); return; }
    if (m.type === 'hello') {
      rc.online = true;
      $('rvHostName').textContent = m.hostName || 'Screen';
      if (m.state) { rc.state = m.state; rc.stateAt = Date.now(); }
      if (m.queue) rc.queue = m.queue;
      setStatus('Synced', true);
      clearInterval(rc.ping);
      const ping = () => rcSend({ type: 'ping', t: Date.now() });
      ping();
      rc.ping = setInterval(ping, 5000);
      renderRemote(); renderQueue();
    } else if (m.type === 'state') {
      rc.state = m.state; rc.stateAt = Date.now();
      renderRemote();
    } else if (m.type === 'queue') {
      rc.queue = m.queue || { items: [], idx: -1 };
      renderQueue();
    } else if (m.type === 'pong') {
      rc.latency = Date.now() - m.t;
      if (rc.online) setStatus(`Synced · ${rc.latency} ms`, true);
    } else if (m.type === 'host-offline') {
      rc.online = false;
      setStatus('Screen offline — waiting…');
    }
  }

  function liveCur() {
    const s = rc.state;
    if (!s) return 0;
    const cur = s.paused ? s.cur : s.cur + (Date.now() - rc.stateAt) / 1000;
    return Math.min(cur, s.dur || cur);
  }

  function renderRemote() {
    const s = rc.state;
    const v = s && s.v;
    $('rvTitle').textContent = v ? v.title : 'Nothing playing';
    $('rvChannel').textContent = v ? v.channel : '';
    let directPlay = $('rvDirectPlay');
    if (!directPlay) { directPlay = document.createElement('button'); directPlay.id = 'rvDirectPlay'; directPlay.className = 'np-btn'; directPlay.style.minHeight = '44px'; directPlay.textContent = 'Play here from paired screen'; $('rvChannel').after(directPlay); }
    directPlay.hidden = !v || !s.directAvailable || !DirectMedia.enabled();
    directPlay.onclick = () => v && playVideoAt({ ...v, duration: s.dur || 0 }, liveCur());

    const thumb = $('rvThumb');
    if (v && v.thumbnail) { if (thumb.getAttribute('src') !== v.thumbnail) thumb.src = v.thumbnail; thumb.classList.remove('hidden'); }
    else thumb.classList.add('hidden');
    $('rvToggle').textContent = s && !s.paused ? '⏸' : '▶';
    $('rvDur').textContent = clock((s && s.dur) || 0);
    if (!rc.volTimer && document.activeElement !== $('rvVolume')) {
      const pct = Math.round(((s && s.volume) ?? 1) * 100);
      $('rvVolume').value = String(pct);
      $('rvVolVal').textContent = pct + '%';
    }
    const sleepMin = s && s.sleep ? Math.ceil(s.sleep / 60) : 0;
    $('rvSleep').textContent = sleepMin ? `⏱ ${sleepMin} min` : '⏱ Sleep';
    $('rvSleep').classList.toggle('on', !!sleepMin);
    $('rvService').classList.toggle('on', !!(s && s.service));
    renderSeek();
  }

  function renderSeek() {
    if (rc.seeking || !rc.open) return;
    const s = rc.state;
    const cur = liveCur();
    $('rvCur').textContent = clock(cur);
    $('rvSeek').value = s && s.dur ? String(Math.round((cur / s.dur) * 1000)) : '0';
  }

  function renderQueue() {
    const q = rc.queue || { items: [], idx: -1 };
    const up = q.items.map((v, i) => ({ ...v, i })).filter((v) => v.i > q.idx);
    $('rvQueueCount').textContent = up.length ? `${up.length} song${up.length === 1 ? '' : 's'}` : '';
    const list = $('rvQueue');
    list.innerHTML = up.length ? up.map((v) => `
      <div class="rv-row" data-i="${v.i}">
        <span class="rv-handle" aria-label="Drag to reorder">⠿</span>
        <div class="rv-row-text">
          <div class="rv-row-title">${escapeHtml(v.title)}</div>
          <div class="rv-row-sub">${escapeHtml(v.channel)}</div>
        </div>
        <span class="rv-row-dur">${v.duration ? clock(v.duration) : ''}</span>
        <button class="rv-row-x" type="button" data-rm="${v.i}" aria-label="Remove">✕</button>
      </div>`).join('') : '<div class="rv-empty">Nothing queued after this song.</div>';
  }

  // ---- drag to reorder (pointer events, works for touch + mouse) ----
  function onDragStart(e) {
    const handle = e.target.closest('.rv-handle');
    if (!handle) return;
    const row = handle.closest('.rv-row');
    e.preventDefault();
    const rows = [...$('rvQueue').querySelectorAll('.rv-row')];
    rc.drag = { row, rows, startY: e.clientY, from: Number(row.dataset.i), to: Number(row.dataset.i), h: row.offsetHeight };
    row.classList.add('dragging');
    row.setPointerCapture(e.pointerId);
    row.addEventListener('pointermove', onDragMove);
    row.addEventListener('pointerup', onDragEnd, { once: true });
    row.addEventListener('pointercancel', onDragEnd, { once: true });
  }
  function onDragMove(e) {
    const d = rc.drag;
    if (!d) return;
    const dy = e.clientY - d.startY;
    d.row.style.transform = `translateY(${dy}px)`;
    const pos = d.rows.indexOf(d.row);
    const target = Math.max(0, Math.min(d.rows.length - 1, pos + Math.round(dy / d.h)));
    d.to = Number(d.rows[target].dataset.i);
  }
  function onDragEnd() {
    const d = rc.drag;
    rc.drag = null;
    if (!d) return;
    d.row.removeEventListener('pointermove', onDragMove);
    d.row.classList.remove('dragging');
    d.row.style.transform = '';
    if (d.to !== d.from) {
      // Optimistic: reorder locally now, the host's queue push confirms it.
      const items = rc.queue.items.slice();
      const [v] = items.splice(d.from, 1);
      items.splice(d.to, 0, v);
      rc.queue = { ...rc.queue, items };
      renderQueue();
      cmd('move', { from: d.from, to: d.to });
    }
  }

  // ---- add to queue: search sheet ----
  function openAddSheet() {
    const body = document.createElement('div');
    body.className = 'rv-add';
    body.innerHTML = `
      <form class="rv-add-form"><input class="rv-add-q" type="search" placeholder="Search YouTube…" /><button class="np-btn" type="submit">Search</button></form>
      <div class="rv-add-results"></div>`;
    const results = body.querySelector('.rv-add-results');
    let found = [];
    body.querySelector('form').addEventListener('submit', async (e) => {
      e.preventDefault();
      const q = body.querySelector('.rv-add-q').value.trim();
      if (!q) return;
      results.innerHTML = '<div class="rv-empty">Searching…</div>';
      try {
        const res = await API.search(q);
        found = (res && res.ok && res.results) || [];
      } catch { found = []; }
      results.innerHTML = found.length ? found.slice(0, 20).map((v, i) => `
        <button class="rv-add-item" type="button" data-k="${i}">
          <img src="${escapeHtml(v.thumbnail || '')}" alt="" loading="lazy" decoding="async" />
          <span><b>${escapeHtml(v.title || '')}</b><small>${escapeHtml(v.channel || '')}${v.duration ? ' · ' + clock(v.duration) : ''}</small></span>
        </button>`).join('') : '<div class="rv-empty">No results.</div>';
    });
    results.addEventListener('click', (e) => {
      const b = e.target.closest('[data-k]');
      if (!b) return;
      const v = found[Number(b.dataset.k)];
      if (!v) return;
      cmd('add', { video: { id: v.id, title: v.title, channel: v.channel, duration: v.duration, thumbnail: v.thumbnail } });
      b.classList.add('added');
      toast(`Added “${v.title}”`);
    });
    showModal('＋ Add to the screen’s queue', body, [{ label: 'Done', primary: true, onClick: closeModal }]);
    setTimeout(() => body.querySelector('.rv-add-q').focus(), 50);
  }

  async function doPair(codeRaw) {
    const code = String(codeRaw || '').replace(/\D/g, '');
    const name = $('rvName').value.trim() || guessName('Phone');
    if (code.length !== 6) { $('rvPairMsg').textContent = 'Enter the 6-digit code from the screen.'; return; }
    $('rvPairMsg').textContent = 'Pairing…';
    try {
      const res = await fetch('/api/remote/pair', {
        method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ code, name }),
      });
      const j = await res.json().catch(() => null);
      if (!j || !j.ok) { $('rvPairMsg').textContent = '⚠ ' + ((j && j.error) || `HTTP ${res.status}`); return; }
      save(PAIR_KEY, { roomId: j.roomId, remoteId: j.remoteId, token: j.token, hostName: j.hostName, name: j.name });
      $('rvCode').value = '';
      rcConnect();
    } catch {
      $('rvPairMsg').textContent = '⚠ Network error — try again';
    }
  }

  async function openRemoteView({ code = '' } = {}) {
    try { await Lazy.load('feature:direct'); } catch(error) { toast(error.message); return; }
    rc.open = true;
    rc.seekTimer = VisibleTimer.setIntervalWhenVisible(renderSeek, 500);
    // This phone is the remote now — don't also play here.
    try { if (Player.master && !Player.master.paused) Player.pause(); } catch { /* nothing loaded */ }
    $('remoteView').classList.remove('hidden');
    document.body.classList.add('remote-open');
    if (code) { save(PAIR_KEY, null); showPairForm(); $('rvCode').value = code; doPair(code); return; }
    if (load(PAIR_KEY)) rcConnect(); else showPairForm();
  }

  function closeRemoteView() {
    rc.open = false;
    rc.seekTimer?.clear();
    rc.seekTimer = null;
    clearTimeout(rc.retry);
    clearInterval(rc.ping);
    const ws = rc.ws;
    rc.ws = null;
    try { if (ws) ws.close(); } catch { /* gone */ }
    $('remoteView').classList.add('hidden');
    document.body.classList.remove('remote-open');
  }

  function openChooser() {
    const hosting = hostCfg().enabled;
    const paired = load(PAIR_KEY);
    const body = document.createElement('div');
    body.innerHTML = `<p class="modal-text">Play on a computer hooked to the TV or speakers, and drive it from your phone.</p>`;
    showModal('📱 Remote', body, [
      { label: paired ? `Control “${paired.hostName}”` : 'Use this phone as a remote', onClick: () => { closeModal(); openRemoteView(); } },
      { label: hosting ? 'This screen: remote on' : 'Control this screen from a phone', primary: true, onClick: () => { closeModal(); openHostModal(); } },
    ]);
  }

  function bindUi() {
    $('rvClose').addEventListener('click', closeRemoteView);
    $('rvMenu').addEventListener('click', () => {
      const p = load(PAIR_KEY);
      showModal('Remote options', document.createTextNode(p ? `Paired with “${p.hostName}”.` : 'Not paired.'), [
        { label: 'Close', onClick: closeModal },
        ...(p ? [{ label: 'Unpair this phone', danger: true, onClick: () => { closeModal(); save(PAIR_KEY, null); try { rc.ws && rc.ws.close(); } catch { /* gone */ } showPairForm('Unpaired.'); } }] : []),
      ]);
    });
    $('rvPairBtn').addEventListener('click', () => doPair($('rvCode').value));
    $('rvCode').addEventListener('keydown', (e) => { if (e.key === 'Enter') doPair($('rvCode').value); });
    $('rvToggle').addEventListener('click', () => {
      cmd('toggle');
      if (rc.state) { rc.state.cur = liveCur(); rc.stateAt = Date.now(); rc.state.paused = !rc.state.paused; renderRemote(); }
    });
    $('rvPrev').addEventListener('click', () => cmd('prev'));
    $('rvNext').addEventListener('click', () => cmd('next'));
    const seek = $('rvSeek');
    seek.addEventListener('input', () => {
      rc.seeking = true;
      const dur = (rc.state && rc.state.dur) || 0;
      $('rvCur').textContent = clock((Number(seek.value) / 1000) * dur);
    });
    seek.addEventListener('change', () => {
      const dur = (rc.state && rc.state.dur) || 0;
      const t = (Number(seek.value) / 1000) * dur;
      cmd('seek', { t });
      if (rc.state) { rc.state.cur = t; rc.stateAt = Date.now(); }
      rc.seeking = false;
    });
    $('rvVolume').addEventListener('input', (e) => {
      const pct = Number(e.target.value);
      $('rvVolVal').textContent = pct + '%';
      clearTimeout(rc.volTimer);
      rc.volTimer = setTimeout(() => { rc.volTimer = null; cmd('volume', { v: pct / 100 }); }, 120);
    });
    $('rvQueue').addEventListener('pointerdown', onDragStart);
    $('rvQueue').addEventListener('click', (e) => {
      const rm = e.target.closest('[data-rm]');
      if (rm) { cmd('remove', { i: Number(rm.dataset.rm) }); return; }
      if (e.target.closest('.rv-handle')) return;
      const row = e.target.closest('.rv-row');
      if (row) cmd('jump', { i: Number(row.dataset.i) });
    });
    $('rvAdd').addEventListener('click', openAddSheet);
    $('rvSleep').addEventListener('click', () => {
      const options = [0, 15, 30, 45, 60, 90];
      const curMin = rc.state && rc.state.sleep ? Math.ceil(rc.state.sleep / 60) : 0;
      const next = options.find((o) => o > curMin) ?? 0;
      cmd('sleep', { min: next });
      toast(next ? `Screen pauses in ${next} min` : 'Sleep timer off');
    });
    $('rvService').addEventListener('click', () => cmd('service', { on: !(rc.state && rc.state.service) }));
    // Hosts keep phones current once a second while anything plays.
    setInterval(() => { if (host.ws && host.remotes.length) { pushState(); pushQueue(); } }, 1000);
    document.addEventListener('visibilitychange', () => {
      if (document.visibilityState === 'visible' && rc.open && !rc.ws) rcConnect();
    });
  }

  function boot() {
    bindUi();
    if (hostCfg().enabled) hostConnect();
    // A scanned QR / shared link: /?pair=482913
    let code = '';
    try { code = (new URLSearchParams(location.search).get('pair') || '').replace(/\D/g, ''); } catch { /* no URL */ }
    if (code) {
      try {
        const u = new URL(location.href);
        u.searchParams.delete('pair');
        history.replaceState(null, '', u.pathname + u.search + u.hash);
      } catch { /* leave the URL */ }
      openRemoteView({ code });
    }
  }

  return { boot, changed, openChooser, openHostModal };
})();