// プレイ画面（スタブ）: サーバから受け取ったテーブル状態を表示するだけ
(function () {
  'use strict';

  const { Store, esc, chips, toast } = App;
  const $ = (id) => document.getElementById(id);
  const tableId = decodeURIComponent(location.pathname.split('/').pop());

  const AVATAR_SVG =
    '<svg viewBox="0 0 24 24" aria-hidden="true"><circle cx="12" cy="8" r="4.5"/><path d="M3 21c0-4.4 4-7.5 9-7.5s9 3.1 9 7.5z"/></svg>';

  let socket = null;
  let state = null;
  let clockOffset = 0; // serverNow - clientNow

  // ---------- 名前 ----------
  function ensureName() {
    if (Store.name) return connect();
    $('name-modal').hidden = false;
    $('name-input').focus();
  }
  $('name-form').addEventListener('submit', (e) => {
    e.preventDefault();
    const name = $('name-input').value.trim();
    if (!name) return $('name-input').classList.add('invalid');
    Store.name = name;
    $('name-modal').hidden = true;
    connect();
  });

  // ---------- 通信 ----------
  function connect() {
    socket = App.connectSocket();
    socket.on('connect', () => {
      $('conn-lost').hidden = true;
      socket.emit('table:join', { tableId, token: Store.token, name: Store.name }, (res) => {
        if (res && res.ok) return;
        if (res && res.error === 'NOT_FOUND') return showNotFound();
        toast('参加できませんでした: ' + ((res && res.error) || '不明なエラー'));
      });
    });
    socket.on('disconnect', () => { $('conn-lost').hidden = false; });
    socket.on('connect_error', () => { $('conn-lost').hidden = false; });
    socket.on('table:state', (s) => {
      state = s;
      clockOffset = s.serverNow - Date.now();
      render();
    });
  }

  function emit(event) {
    if (!socket) return;
    socket.emit(event, null, (res) => {
      if (res && !res.ok) toast(res.error === 'NOT_FOUND' ? 'テーブルが見つかりません' : res.error);
    });
  }

  function showNotFound() {
    $('main').hidden = true;
    $('action-bar').hidden = true;
    $('not-found').hidden = false;
    if (socket) socket.disconnect();
  }

  // ---------- 描画 ----------
  function render() {
    const s = state;
    $('main').hidden = false;
    document.title = `${s.name} - Hold'em Night`;
    $('table-name').textContent = s.name;

    $('level').textContent = `Lv.${s.level}`;
    $('blinds').textContent = `SB: ${chips(s.smallBlind)} / BB: ${chips(s.bigBlind)}`;
    $('next-blinds').textContent = s.timer.enabled
      ? `次: ${chips(s.nextBlinds.smallBlind)} / ${chips(s.nextBlinds.bigBlind)}（${s.timer.intervalMin}分毎）`
      : 'ブラインドタイマーなし';
    $('stack-info').textContent = `開始スタック ${chips(s.startingStack)}`;

    $('pot').textContent = chips(s.pot);
    $('phase').textContent = App.PHASE_LABELS[s.phase] || s.phase;
    $('hand-no').textContent = s.handNumber ? `Hand #${s.handNumber}` : '';

    // ホスト操作
    const players = s.seats.filter(Boolean).length;
    $('host-controls').hidden = !s.isHost;
    $('host-spacer').hidden = s.isHost;
    $('start').disabled = s.phase !== 'WAITING' || players < 2;
    $('start').title = players < 2 ? '2人以上で開始できます' : '';
    $('next-phase').disabled = s.phase === 'WAITING';
    $('pause').disabled = !s.started;
    $('pause').textContent = s.paused ? '再開' : '一時停止';

    // 自分
    const me = s.mySeat >= 0 ? s.seats[s.mySeat] : null;
    $('action-bar').hidden = !me;
    $('spectator-note').hidden = Boolean(me);
    $('leave').title = me ? '退席する' : 'ロビーへ戻る';
    if (me) $('my-stack').textContent = chips(me.stack);

    renderSeats(s);
    renderTimer();
  }

  // 着席者を楕円上に配置。自分が一番下、そこから時計回り。
  function renderSeats(s) {
    const occupied = s.seats.filter(Boolean);
    const startIdx = Math.max(0, occupied.findIndex((p) => p.seat === s.mySeat));
    const ordered = occupied.slice(startIdx).concat(occupied.slice(0, startIdx));
    const n = ordered.length;

    const container = $('seats');
    container.innerHTML = ordered
      .map((p) => {
        const classes = ['seat'];
        if (p.seat === s.mySeat) classes.push('me');
        if (!p.connected) classes.push('offline');
        const markers = [
          p.seat === s.buttonSeat ? '<span class="chip-marker dealer" title="ディーラーボタン">D</span>' : '',
          p.seat === s.sbSeat ? '<span class="blind-marker sb">SB</span>' : '',
          p.seat === s.bbSeat ? '<span class="blind-marker bb">BB</span>' : '',
        ].join('');
        return `
          <div class="${classes.join(' ')}">
            <div class="avatar">${AVATAR_SVG}${markers}</div>
            <div class="nameplate">
              <div class="pname">${p.seat === s.hostSeat ? '<span title="ホスト">👑</span>' : ''}${esc(p.name)}</div>
              <div class="pstack">${chips(p.stack)}</div>
              ${p.connected ? '' : '<div class="offline-tag">オフライン</div>'}
            </div>
          </div>`;
      })
      .join('');

    // 位置は CSSOM で設定（CSP で style 属性を禁止しているため）
    [...container.children].forEach((el, i) => {
      const angle = Math.PI / 2 + (i * 2 * Math.PI) / Math.max(n, 1);
      el.style.left = `${(50 + 38 * Math.cos(angle)).toFixed(2)}%`;
      el.style.top = `${(50 + 41 * Math.sin(angle)).toFixed(2)}%`;
    });
  }

  function renderTimer() {
    const el = $('timer');
    if (!state) return;
    const t = state.timer;
    el.classList.toggle('paused', state.paused);
    if (!t.enabled) {
      el.textContent = state.paused ? '⏸ PAUSED' : '';
      return;
    }
    const remaining = t.running ? t.endsAt - (Date.now() + clockOffset) : t.remainingMs;
    const sec = Math.max(0, Math.ceil(remaining / 1000));
    const time = `${Math.floor(sec / 60)}:${String(sec % 60).padStart(2, '0')}`;
    el.textContent = state.paused ? `⏸ ${time}` : time;
    el.classList.toggle('warn', t.running && sec <= 60);
  }
  setInterval(renderTimer, 250);

  // ---------- 操作 ----------
  $('start').addEventListener('click', () => emit('table:start'));
  $('next-phase').addEventListener('click', () => emit('table:nextPhase'));
  $('pause').addEventListener('click', () => emit('table:pause'));

  $('leave').addEventListener('click', () => {
    const seated = state && state.mySeat >= 0;
    if (!seated) return (location.href = '/');
    if (!confirm('テーブルから退席しますか？（チップは失われます）')) return;
    socket.emit('table:leave', null, () => { location.href = '/'; });
  });

  $('share').addEventListener('click', async () => {
    const url = location.origin + '/';
    try {
      await navigator.clipboard.writeText(url);
    } catch {
      const ta = document.createElement('textarea');
      ta.value = url;
      document.body.appendChild(ta);
      ta.select();
      document.execCommand('copy');
      ta.remove();
    }
    toast('サイトのリンクをコピーしました');
  });

  ensureName();
})();