(function () {
  'use strict';

  const { Store, esc, chips } = App;
  const nameInput = document.getElementById('name');
  const nameError = document.getElementById('name-error');
  const listEl = document.getElementById('list');
  const countEl = document.getElementById('count');

  nameInput.value = Store.name;
  nameInput.addEventListener('input', () => {
    Store.name = nameInput.value.trim();
    nameInput.classList.remove('invalid');
    nameError.textContent = '';
  });

  function requireName() {
    if (Store.name) return true;
    nameInput.classList.add('invalid');
    nameError.textContent = '先に名前を入力してください。';
    nameInput.focus();
    return false;
  }

  let admin = false;
  let tables = null;

  // 管理者だけにハンドレンジ学習・CPU戦のレビューへのリンクとテーブルの削除ボタンを出す
  // （ページ・API 自体もサーバ側で管理者以外は 404）
  App.api('GET', '/api/me')
    .then((me) => {
      admin = Boolean(me.admin);
      document.getElementById('range-link').hidden = !admin;
      document.getElementById('review-link').hidden = !admin;
      if (tables) render(tables);
    })
    .catch(() => {});

  document.getElementById('create').addEventListener('click', () => {
    if (requireName()) location.href = '/create';
  });

  listEl.addEventListener('click', (e) => {
    const del = e.target.closest('[data-delete]');
    if (del) return deleteTable(del.dataset.delete, del);
    const btn = e.target.closest('[data-join]');
    if (btn && requireName()) location.href = '/table/' + encodeURIComponent(btn.dataset.join);
  });

  function deleteTable(id, btn) {
    const t = tables && tables.find((x) => x.id === id);
    if (!t) return;
    const players = t.playerCount ? `
着席中の ${t.playerCount} 人はテーブルから退出させられます。` : '';
    if (!confirm(`「${t.name}」を削除しますか？${players}`)) return;
    btn.disabled = true;
    App.api('DELETE', '/api/tables/' + encodeURIComponent(id))
      .then(() => App.toast('テーブルを削除しました'))
      .catch((err) => {
        btn.disabled = false;
        App.toast(err.message);
      });
  }

  const MODE_LABEL = { chips: '💰 キャッシュオンリー', friends: '🃏 友人戦', cpu: '🤖 CPU戦', review: '📝 レビュー付きCPU戦' };

  function phaseBadge(t) {
    if (t.paused) return '<span class="badge paused">PAUSED</span>';
    if (t.phase === 'WAITING') return '<span class="badge">WAITING</span>';
    return '<span class="badge live">PLAYING</span>';
  }

  function render(list) {
    tables = list;
    countEl.textContent = tables.length ? `${tables.length} テーブル` : '';
    if (!tables.length) {
      listEl.innerHTML = '<div class="empty">開催中のテーブルはありません。<br>テーブルを作成して友達を招待しよう。</div>';
      return;
    }
    listEl.innerHTML = tables
      .map((t) => {
        const full = t.playerCount >= t.maxSeats;
        const timer = t.timerEnabled ? `⏱ ${t.intervalMin}分` : '⏱ なし';
        return `
          <div class="table-item">
            <div class="info">
              <div class="name">${esc(t.name)}${phaseBadge(t)}</div>
              <div class="meta">
                <span>👤 <b>${t.playerCount}/${t.maxSeats}</b></span>
                <span>開始 <b>${chips(t.startingStack)}</b></span>
                <span class="gold">Lv.${t.level} <b class="gold">${chips(t.smallBlind)}/${chips(t.bigBlind)}</b></span>
                <span>${timer}</span>
                <span>${MODE_LABEL[t.mode] || ''}</span>
              </div>
            </div>
            <div class="buttons">
              ${admin ? `<button class="btn btn-red btn-sm" data-delete="${esc(t.id)}" title="テーブルを削除">削除</button>` : ''}
              <button class="btn btn-blue btn-sm" data-join="${esc(t.id)}" ${full ? 'title="満席（観戦のみ）"' : ''}>
                ${full ? '観戦' : '参加'}
              </button>
            </div>
          </div>`;
      })
      .join('');
  }

  const socket = App.connectSocket();
  socket.on('connect', () => socket.emit('lobby:subscribe'));
  socket.on('lobby:tables', render);
})();