// プレイ画面: サーバから受け取ったテーブル状態を描画し、アクションを送る
(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>';
  // U+FE0E: iOS で絵文字として描画されないように
  const SUIT_SYMBOL = { s: '♠︎', h: '♥︎', d: '♦︎', c: '♣︎' };
  const ACTION_LABEL = { FOLD: 'Fold', CHECK: 'Check', CALL: 'Call', BET: 'Bet', RAISE: 'Raise', ALLIN: 'All-in' };

  let socket = null;
  let state = null;
  let clockOffset = 0; // serverNow - clientNow
  let pending = false; // アクション送信中（連打防止）
  let raising = false;
  let raiseValue = 0;
  let seenBoard = ''; // 新しくめくられたカードだけアニメーションする
  let seenHand = 0;
  let wasMyTurn = false;

  // ---------- 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;
      join();
    });
    socket.on('disconnect', () => { $('conn-lost').hidden = false; });
    socket.on('connect_error', () => { $('conn-lost').hidden = false; });
    socket.on('table:state', (s) => {
      state = s;
      pending = false;
      clockOffset = s.serverNow - Date.now();
      render();
    });
  }

  function join(manual) {
    socket.emit('table:join', { tableId, token: Store.token, name: Store.name }, (res) => {
      if (res && res.ok) {
        if (res.seat < 0 && manual) toast('空いている席がありません');
        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'));
    });
  }

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

  function sendAction(type, amount) {
    if (pending) return;
    pending = true;
    raising = false;
    emit('table:action', { type, amount });
    render();
  }

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

  // ---------- カード ----------
  function cardHtml(c, extra = '') {
    if (typeof c !== 'string' || !/^[2-9TJQKA][shdc]$/.test(c)) return `<span class="card back ${extra}"></span>`;
    const rank = c[0] === 'T' ? '10' : c[0];
    return `<span class="card suit-${c[1]} ${extra}" data-card="${c}"><b>${rank}</b><i>${SUIT_SYMBOL[c[1]]}</i></span>`;
  }

  // ショーダウンで勝った5枚
  function winningCards(h) {
    return h && h.finished && h.showdown && h.results && h.results[0] ? new Set(h.results[0].bestCards) : null;
  }

  // ---------- 描画 ----------
  function render() {
    const s = state;
    const h = s.hand;
    const me = s.mySeat >= 0 ? s.seats[s.mySeat] : null;
    const myTurn = Boolean(s.me && s.me.options);

    $('main').hidden = false;
    document.title = `${myTurn ? '▶ ' : ''}${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)}`;

    // 中央
    $('pot').textContent = chips(h ? h.potTotal : 0);
    $('phase').textContent = s.paused ? 'PAUSED' : App.PHASE_LABELS[s.phase] || s.phase;
    $('phase').parentElement.classList.toggle('paused', s.paused);
    $('hand-no').textContent = s.handNumber ? `#${s.handNumber}` : '';
    renderBoard(h);
    renderResult(s);

    // ホスト操作
    $('host-controls').hidden = !s.isHost;
    $('host-spacer').hidden = s.isHost;
    const eligible = s.seats.filter((p) => p && !p.sittingOut && p.stack > 0).length;
    $('start').hidden = s.started;
    $('start').disabled = eligible < 2;
    $('start').title = eligible < 2 ? '2人以上で開始できます' : '';
    $('pause').hidden = !s.started;
    $('pause').textContent = s.paused ? '再開' : '一時停止';

    // 自分
    $('action-bar').hidden = !me;
    $('spectator-note').hidden = Boolean(me);
    const hasFreeSeat = s.seats.some((p) => !p);
    $('take-seat').hidden = Boolean(me) || !hasFreeSeat;
    $('spectator-text').textContent = hasFreeSeat ? '観戦中です' : '満席のため観戦中です';
    $('leave').title = me ? '退席する' : 'ロビーへ戻る';

    renderSeats(s);
    if (me) renderActionBar(s, me);
    renderTimer();

    // 自分の番になったら知らせる
    const tapped = !navigator.userActivation || navigator.userActivation.hasBeenActive;
    if (myTurn && !wasMyTurn && navigator.vibrate && tapped) navigator.vibrate(80);
    wasMyTurn = myTurn;
    if (h) {
      seenBoard = `${h.number}:${h.board.length}`;
      seenHand = h.number;
    }
  }

  function renderBoard(h) {
    const el = $('board');
    if (!h) {
      el.innerHTML = '';
      return;
    }
    const [seenNo, seenLen] = seenBoard.split(':').map(Number);
    const oldLen = seenNo === h.number ? seenLen : 0;
    const best = winningCards(h);
    let html = '';
    for (let i = 0; i < 5; i++) {
      const c = h.board[i];
      if (!c) {
        html += '<span class="card slot"></span>';
        continue;
      }
      const cls = [i >= oldLen ? 'deal' : '', best ? (best.has(c) ? 'hl' : 'dim') : ''].join(' ');
      html += cardHtml(c, cls);
    }
    el.innerHTML = html;
  }

  function renderResult(s) {
    const el = $('result');
    const h = s.hand;
    if (!h || !h.finished || !h.results) {
      el.hidden = true;
      return;
    }
    const nameOf = (seat) => (s.seats[seat] ? s.seats[seat].name : '退席者');
    el.innerHTML = h.results
      .map((r, i) => {
        const label = h.results.length > 1 ? `<span class="pot-tag">${i === 0 ? 'メイン' : 'サイド'}</span>` : '';
        const who = r.winners.map((w) => esc(nameOf(w))).join('・');
        const hand = r.handName ? `<span class="rhand">${esc(r.handName)}</span>` : '';
        return `<div>${label}<b>${who}</b> +${chips(r.amount)} ${hand}</div>`;
      })
      .join('');
    el.hidden = false;
  }

  // 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 h = s.hand;
    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 best = winningCards(h);
    const angles = ordered.map((_, i) => Math.PI / 2 + (i * 2 * Math.PI) / Math.max(n, 1));

    const container = $('seats');
    $('felt-area').classList.toggle('crowded', n >= 7); // 7人以上は小さめに表示
    container.innerHTML = ordered
      .map((p, idx) => {
        const classes = ['seat'];
        const isTurn = s.turn && s.turn.seat === p.seat;
        if (p.seat === s.mySeat) classes.push('me');
        if (!p.connected) classes.push('offline');
        if (p.inHand && p.folded) classes.push('folded');
        if (isTurn) classes.push('turn');
        if (h && h.finished && p.won > 0) classes.push('winner');
        if (p.sittingOut && !p.inHand) classes.push('away');

        const markers = h
          ? [
              p.seat === h.button ? '<span class="chip-marker dealer" title="ディーラーボタン">D</span>' : '',
              p.seat === h.sbSeat ? '<span class="blind-marker sb">SB</span>' : '',
              p.seat === h.bbSeat ? '<span class="blind-marker bb">BB</span>' : '',
            ].join('')
          : '';

        // 手札（自分と公開された人は表、それ以外は裏）
        let cards = '';
        if (p.inHand && (!p.folded || p.cards)) {
          const deal = h.number !== seenHand ? 'deal' : '';
          const list = p.cards || [null, null];
          cards = `<div class="hole">${list
            .map((c) => cardHtml(c, [deal, best && c ? (best.has(c) ? 'hl' : 'dim') : ''].join(' ')))
            .join('')}</div>`;
        }

        // ベット（中央寄り）・獲得額
        const below = Math.sin(angles[idx]) <= 0.35;
        let bet = '';
        if (h && h.finished && p.won > 0) bet = `<div class="bet win ${below ? 'below' : 'above'}">+${chips(p.won)}</div>`;
        else if (p.bet > 0) bet = `<div class="bet ${below ? 'below' : 'above'}">${chips(p.bet)}</div>`;

        let tag = '';
        if (p.last && !(h && h.finished && p.won > 0)) {
          tag = `<div class="act-tag tag-${p.last.type.toLowerCase()}">${ACTION_LABEL[p.last.type] || ''}</div>`;
        } else if (p.sittingOut && !p.inHand) {
          tag = '<div class="act-tag tag-away">離席中</div>';
        }

        return `
          <div class="${classes.join(' ')}">
            <div class="avatar">${AVATAR_SVG}${markers}${cards}</div>
            <div class="nameplate">
              ${tag}
              <div class="pname">${esc(p.name)}</div>
              <div class="pstack">${p.allIn && !(h && h.finished) ? 'ALL-IN' : chips(p.stack)}</div>
              ${p.handName && p.seat !== s.mySeat ? `<div class="phand">${esc(p.handName)}</div>` : ''}
              ${p.connected ? '' : '<div class="offline-tag">オフライン</div>'}
              ${isTurn ? '<div class="seat-timer"><i></i></div>' : ''}
            </div>
            ${bet}
          </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) => {
      el.style.left = `${(50 + 38 * Math.cos(angles[i])).toFixed(2)}%`;
      el.style.top = `${(50 + 41 * Math.sin(angles[i])).toFixed(2)}%`;
    });
  }

  function renderActionBar(s, seat) {
    const m = s.me;
    const h = s.hand;
    const o = m.options;

    $('my-stack').textContent = chips(m.stack);
    const net = m.net;
    $('my-net').textContent = `収支 ${net > 0 ? '+' : net < 0 ? '−' : '±'}${chips(Math.abs(net))}`;
    $('my-net').className = net > 0 ? 'plus' : net < 0 ? 'minus' : '';
    $('my-hand').textContent = seat.handName || '';

    const myCards = seat.inHand && seat.cards ? seat.cards : null;
    const best = winningCards(h);
    $('my-cards').innerHTML = myCards
      ? myCards.map((c) => cardHtml(c, [seat.folded ? 'dim' : '', best && best.has(c) ? 'hl' : ''].join(' '))).join('')
      : '<span class="card slot"></span><span class="card slot"></span>';

    $('sit-out').hidden = m.sittingOut;

    // 状況
    let status = '';
    if (!s.started) status = s.isHost ? '2人以上揃ったら START を押してください' : 'ホストの開始を待っています';
    else if (s.paused) status = '一時停止中';
    else if (m.sittingOut) status = '離席中です。復帰すると次のハンドから参加します';
    else if (m.canRebuy) status = 'チップがなくなりました';
    else if (o) status = o.canCheck ? 'あなたの番です' : `あなたの番です（コール ${chips(o.toCall)}）`;
    else if (h && !h.finished && s.turn) status = `${(s.seats[s.turn.seat] || {}).name || ''} の番です`;
    else if (h && !h.finished && !seat.inHand) status = '次のハンドから参加します';
    else if (h && !h.finished && !s.turn) status = 'オールイン — 残りのカードをめくります';
    else if (h && h.finished) status = '次のハンドを準備中…';
    else if (!h) status = '参加者を待っています（2人以上で再開）';
    $('status-line').textContent = status;
    $('status-line').classList.toggle('my-turn', Boolean(o));

    // ボタン
    const alt = m.sittingOut || m.canRebuy;
    $('alt-actions').hidden = !alt;
    $('sit-in').hidden = !m.sittingOut;
    $('rebuy').hidden = !m.canRebuy;
    $('rebuy').textContent = `リバイ（${chips(s.startingStack)}）`;

    if (!o) raising = false;
    $('actions').hidden = alt || raising;
    $('raise-actions').hidden = alt || !raising;
    $('raise-panel').hidden = alt || !raising;
    $('status-line').hidden = raising;

    const fold = $('act-fold');
    const call = $('act-call');
    const raise = $('act-raise');
    fold.disabled = call.disabled = raise.disabled = !o || pending;
    if (!o) {
      call.textContent = 'Check';
      raise.textContent = 'Raise';
      return;
    }
    call.textContent = o.canCheck ? 'Check' : o.toCall >= m.stack ? `All-in ${chips(o.toCall)}` : `Call ${chips(o.toCall)}`;
    raise.disabled = pending || !o.canRaise;
    raise.textContent = !o.canRaise
      ? o.isBet ? 'Bet' : 'Raise'
      : o.minRaiseTo >= o.maxRaiseTo
        ? `All-in ${chips(o.maxRaiseTo)}`
        : o.isBet ? 'Bet' : 'Raise';

    if (raising) renderRaisePanel(o);
  }

  // ---------- レイズ ----------
  function presetValue(o, kind) {
    const h = state.hand;
    const potAfterCall = h.potTotal + o.toCall;
    const base = h.currentBet;
    const v = {
      min: o.minRaiseTo,
      half: base + Math.round(potAfterCall / 2),
      threeq: base + Math.round((potAfterCall * 3) / 4),
      pot: base + potAfterCall,
      max: o.maxRaiseTo,
    }[kind];
    return clampRaise(o, v);
  }

  function clampRaise(o, v) {
    if (!Number.isFinite(v)) return o.minRaiseTo;
    return Math.min(o.maxRaiseTo, Math.max(o.minRaiseTo, Math.round(v)));
  }

  function renderRaisePanel(o) {
    raiseValue = clampRaise(o, raiseValue);
    const range = $('raise-range');
    range.min = o.minRaiseTo;
    range.max = o.maxRaiseTo;
    range.step = 1;
    range.value = raiseValue;
    const amount = $('raise-amount');
    if (document.activeElement !== amount) amount.value = raiseValue;
    amount.min = o.minRaiseTo;
    amount.max = o.maxRaiseTo;
    for (const b of $('presets').children) {
      b.classList.toggle('active', presetValue(o, b.dataset.preset) === raiseValue);
    }
    const allIn = raiseValue >= o.maxRaiseTo;
    $('raise-confirm').textContent = allIn
      ? `All-in ${chips(raiseValue)}`
      : `${o.isBet ? 'Bet' : 'Raise to'} ${chips(raiseValue)}`;
    $('raise-confirm').disabled = pending;
  }

  const options = () => (state && state.me && state.me.options) || null;

  $('act-fold').addEventListener('click', () => {
    const o = options();
    if (!o) return;
    if (o.canCheck && !confirm('チェックできます。フォールドしますか？')) return;
    sendAction('fold');
  });
  $('act-call').addEventListener('click', () => {
    const o = options();
    if (o) sendAction(o.canCheck ? 'check' : 'call');
  });
  $('act-raise').addEventListener('click', () => {
    const o = options();
    if (!o || !o.canRaise) return;
    if (o.minRaiseTo >= o.maxRaiseTo) return sendAction('raise', o.maxRaiseTo); // オールインしかない
    raising = true;
    raiseValue = o.minRaiseTo;
    render();
  });
  $('raise-cancel').addEventListener('click', () => {
    raising = false;
    render();
  });
  $('raise-confirm').addEventListener('click', () => {
    const o = options();
    if (o) sendAction('raise', clampRaise(o, raiseValue));
  });
  $('presets').addEventListener('click', (e) => {
    const b = e.target.closest('[data-preset]');
    const o = options();
    if (!b || !o) return;
    raiseValue = presetValue(o, b.dataset.preset);
    $('raise-amount').value = raiseValue;
    renderRaisePanel(o);
  });
  $('raise-range').addEventListener('input', (e) => {
    const o = options();
    if (!o) return;
    // BB 単位に丸める（最大はオールイン額そのまま）
    const unit = Math.max(1, state.smallBlind);
    let v = Number(e.target.value);
    if (v < o.maxRaiseTo) v = o.minRaiseTo + Math.round((v - o.minRaiseTo) / unit) * unit;
    raiseValue = clampRaise(o, v);
    $('raise-amount').value = raiseValue;
    renderRaisePanel(o);
  });
  $('raise-amount').addEventListener('input', (e) => {
    const o = options();
    const v = Number(e.target.value);
    if (!o || !Number.isFinite(v) || v <= 0) return;
    raiseValue = clampRaise(o, v);
    renderRaisePanel(o);
  });
  $('raise-amount').addEventListener('blur', () => {
    const o = options();
    if (o) $('raise-amount').value = clampRaise(o, raiseValue);
  });

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

    // 手番の残り時間
    const turn = state.turn;
    const ratio = turn ? Math.max(0, Math.min(1, (turn.endsAt != null ? turn.endsAt - now : turn.remainingMs) / turn.totalMs)) : 0;
    const width = `${(ratio * 100).toFixed(1)}%`;
    const bar = document.querySelector('.seat.turn .seat-timer i');
    if (bar) {
      bar.style.width = width;
      bar.classList.toggle('low', ratio < 0.3);
    }
    const mine = Boolean(turn && turn.seat === state.mySeat);
    $('turn-progress').hidden = !mine;
    if (mine) {
      $('turn-bar').style.width = width;
      $('turn-bar').classList.toggle('low', ratio < 0.3);
    }
  }
  setInterval(renderTimer, 200);

  // ---------- その他の操作 ----------
  $('start').addEventListener('click', () => emit('table:start'));
  $('pause').addEventListener('click', () => emit('table:pause'));
  $('sit-out').addEventListener('click', () => emit('table:sitOut'));
  $('take-seat').addEventListener('click', () => join(true));
  $('sit-in').addEventListener('click', () => emit('table:sitIn'));
  $('rebuy').addEventListener('click', () => emit('table:rebuy'));

  $('leave').addEventListener('click', () => {
    const me = state && state.mySeat >= 0 ? state.seats[state.mySeat] : null;
    if (!me) return (location.href = '/');
    const inHand = state.hand && !state.hand.finished && me.inHand && !me.folded;
    const msg = inHand
      ? 'ハンドの途中です。退席するとフォールドになり、チップは失われます。退席しますか？'
      : 'テーブルから退席しますか？（チップは失われます）';
    if (!confirm(msg)) 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();
})();