Add features: escalating turn reminder, AFK AI takeover, public rooms, persistent rejoin

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitignore

@@ -1,3 +1,4 @@
 .env
 data/
 node_modules/
+push.sh

README.md

@@ -10,7 +10,7 @@ A multiplayer Hearts card game with real-time gameplay via WebSockets. Shares ac
 ## Install
 
 ```bash
-git clone git@git.goyban.com:goyban/hearts.git
+git clone https://git.goyban.com/goyban/hearts.git
 cd hearts
 cp .env.example .env
 # edit .env — see below

compose.build.yml

@@ -1,5 +1,6 @@
 services:
   hearts:
+    container_name: hearts
     build: .
     ports:
       - "4000:4000"

compose.yml

@@ -0,0 +1,16 @@
+services:
+  hearts:
+    container_name: hearts
+    image: git.goyban.com/goyban/hearts:latest
+    ports:
+      - "4000:4000"
+      - "4443:4443"
+    restart: unless-stopped
+    volumes:
+      - ./data:/app/data
+      # Hokm's data dir (read-only) so Hearts can verify Hokm accounts
+      - /root/hokm/data:/hokm-data:ro
+      # Share Hokm's card SVGs — same card assets, no duplication
+      - /root/hokm/public/cards:/app/public/cards:ro
+    env_file:
+      - .env

public/app.js

@@ -11,7 +11,17 @@ let authToken  = localStorage.getItem('hearts_token') || null;
 let authUser   = localStorage.getItem('hearts_user')  || null;
 let lastState  = null;
 let deferredInstallPrompt = null;
-let selectedScore = 100;
+
+// ─── Turn escalation state ────────────────────────────────────
+let turnEscalationInterval = null;
+let turnEscalationLevel    = 0;
+let wasMyTurn              = false;
+
+// ─── AFK / AI-takeover state ──────────────────────────────────
+let aiControlledSeats = new Set();
+let afkWarnSeat       = -1;
+let selectedScore  = 100;
+let selectedPublic = false;
 
 // ─── Play mode & hand display mode ───────────────────────────
 function isTouchDevice() {
@@ -160,6 +170,55 @@ const RANK_FILE = {
   'J': '11-JACK', 'Q': '12-QUEEN', 'K': '13-KING',
 };
 
+// ─── Turn escalation ──────────────────────────────────────────
+function handleTurnReminder(isMyTurn) {
+  clearInterval(turnEscalationInterval);
+  turnEscalationLevel = 0;
+  applyTurnEscalation(0);
+  if (!isMyTurn) return;
+  turnEscalationInterval = setInterval(() => {
+    turnEscalationLevel = Math.min(turnEscalationLevel + 1, 3);
+    applyTurnEscalation(turnEscalationLevel);
+    if (turnEscalationLevel >= 3) {
+      if (navigator.vibrate) navigator.vibrate([200, 100, 200]);
+      try {
+        const ctx = new (window.AudioContext || window.webkitAudioContext)();
+        const o = ctx.createOscillator();
+        const g = ctx.createGain();
+        o.connect(g); g.connect(ctx.destination);
+        o.frequency.value = 880;
+        g.gain.setValueAtTime(0.3, ctx.currentTime);
+        g.gain.exponentialRampToValueAtTime(0.001, ctx.currentTime + 0.4);
+        o.start(); o.stop(ctx.currentTime + 0.4);
+      } catch(e) {}
+    }
+  }, 5000);
+}
+
+function applyTurnEscalation(level) {
+  const el = $('phase-msg');
+  if (!el) return;
+  el.classList.remove('your-turn-lvl1', 'your-turn-lvl2', 'your-turn-lvl3');
+  if (level > 0) el.classList.add(`your-turn-lvl${level}`);
+}
+
+// ─── AFK / AI-takeover UI ─────────────────────────────────────
+function updateAiControlBanner() {
+  const banner = $('ai-control-banner');
+  const msg    = $('ai-control-msg');
+  if (!banner || !msg) return;
+  if (aiControlledSeats.size === 0) { hide('ai-control-banner'); return; }
+  if (aiControlledSeats.has(mySeat)) {
+    msg.textContent = 'AI is playing for you — play a card to resume control';
+    banner.className = 'ai-control-banner ai-self';
+  } else {
+    const names = [...aiControlledSeats].map(s => lastState?.names[s] || `P${s+1}`).join(', ');
+    msg.textContent = `AI is playing for ${names}`;
+    banner.className = 'ai-control-banner ai-other';
+  }
+  show('ai-control-banner');
+}
+
 // ─── Helpers ──────────────────────────────────────────────────
 function $(id) { return document.getElementById(id); }
 function show(...ids) { ids.forEach(id => $(id)?.classList.remove('hidden')); }
@@ -295,6 +354,14 @@ function initSocket() {
   socket.on('rejoinError', (msg) => {
     clearSession();
     $('lobby-error').textContent = msg || 'Could not rejoin';
+    showScreen('screen-lobby');
+  });
+
+  socket.on('hasActiveGame', ({ roomId, seat, token }) => {
+    if (myRoomId) return; // already in a session
+    myRoomId = roomId; mySeat = seat; myToken = token;
+    saveSession(roomId, seat, token);
+    socket.emit('rejoin', { roomId, seat, token });
   });
 
   // Core game events — all handled by renderState
@@ -308,11 +375,44 @@ function initSocket() {
   socket.on('joinError', msg => { $('lobby-error').textContent = msg; });
   socket.on('passError', msg => console.warn('passError:', msg));
   socket.on('playError', msg => console.warn('playError:', msg));
+
+  socket.on('afkWarning', ({ seat, name }) => {
+    afkWarnSeat = seat;
+    const isMe = seat === mySeat;
+    $('afk-banner-msg').textContent = isMe
+      ? "You haven't played yet!"
+      : `${name} hasn't played. Let AI take over?`;
+    if (isMe) hide('afk-vote-btn'); else show('afk-vote-btn');
+    show('afk-banner');
+  });
+
+  socket.on('afkResolved', () => {
+    afkWarnSeat = -1;
+    hide('afk-banner');
+  });
+
+  socket.on('aiControl', ({ seat, active, name }) => {
+    if (active) aiControlledSeats.add(seat); else aiControlledSeats.delete(seat);
+    updateAiControlBanner();
+  });
 }
 
 // ─── State rendering ──────────────────────────────────────────
+function syncAiState(state) {
+  aiControlledSeats = new Set(state.aiControlledSeats || []);
+  updateAiControlBanner();
+}
+
 function handleState(state) {
   lastState = state;
+  syncAiState(state);
+
+  // Restore locally-selected pass cards that the server doesn't know about yet
+  if (state.state === 'PASSING' && mySeat >= 0 && !state.passReady[mySeat]) {
+    state.passSelected = passSelectedLocal;
+  } else {
+    passSelectedLocal = [];
+  }
 
   // Always dismiss result overlays when fresh state arrives
   hide('overlay-hand', 'overlay-gameover');
@@ -335,6 +435,7 @@ function handleState(state) {
 
 function handleTrickWon(state) {
   lastState = state;
+  syncAiState(state);
   renderInfoBar(state);
   renderTable(state);
   // Flash the winning slot briefly
@@ -346,6 +447,8 @@ function handleTrickWon(state) {
 
 function handleHandOver(state) {
   lastState = state;
+  syncAiState(state);
+  hide('afk-banner');
   renderInfoBar(state);
   renderTable(state);
   hide('overlay-pass');
@@ -354,6 +457,8 @@ function handleHandOver(state) {
 
 function handleGameOver(state) {
   lastState = state;
+  syncAiState(state);
+  hide('afk-banner');
   renderInfoBar(state);
   renderTable(state);
   hide('overlay-pass', 'overlay-hand');
@@ -440,6 +545,9 @@ function renderWaitingRoom(state) {
   } else {
     hide('btn-fill-bots');
   }
+
+  const badge = $('waiting-public-badge');
+  if (badge) badge.textContent = state.isPublic ? '🌐 Public' : '🔒 Private';
 }
 
 // ── Game table ────────────────────────────────────────────────
@@ -616,6 +724,12 @@ function renderPhaseMsg(state) {
   const el = $('phase-msg');
   if (!el) return;
 
+  const isMyTurn = state.state === 'PLAYING' && state.currentTurn === mySeat && !spectating;
+  if (isMyTurn !== wasMyTurn) {
+    wasMyTurn = isMyTurn;
+    handleTurnReminder(isMyTurn);
+  }
+
   if (state.state === 'WAITING') {
     el.textContent = 'Waiting…';
   } else if (state.state === 'PASSING') {
@@ -728,8 +842,9 @@ function togglePassSelect(code, state) {
     return; // already 3 selected
   }
 
-  // Optimistic update for immediate feedback
+  // Optimistic update for immediate feedback; persist so server pushes don't wipe it
   state.passSelected = selected;
+  passSelectedLocal  = selected;
   renderPassOverlay(state);
   // Also update my-hand in game table
   renderMyHand(myHand, state);
@@ -740,6 +855,7 @@ function confirmPass() {
   if (!state) return;
   const selected = state.passSelected || [];
   if (selected.length !== 3) return;
+  passSelectedLocal = [];
   socket.emit('passCards', { roomId: myRoomId, seat: mySeat, token: myToken, cards: selected });
 }
 
@@ -987,6 +1103,48 @@ function escHtml(s) {
   return String(s).replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;').replace(/"/g,'&quot;');
 }
 
+// ─── Lobby helpers ────────────────────────────────────────────
+function joinGame() {
+  const name   = $('input-name').value.trim();
+  const roomId = $('input-code').value.trim().toUpperCase();
+  if (!name)   { $('lobby-error').textContent = 'Enter your name'; return; }
+  if (!roomId) { $('lobby-error').textContent = 'Enter a room code'; return; }
+  $('lobby-error').textContent = '';
+  myName = name;
+  socket.emit('join', { name, roomId });
+}
+
+async function loadPublicRooms() {
+  const listEl = $('public-rooms-list');
+  if (!listEl) return;
+  listEl.innerHTML = '<p class="hint">Loading…</p>';
+  try {
+    const list = await apiFetch('/api/rooms');
+    if (!Array.isArray(list) || list.length === 0) {
+      listEl.innerHTML = '<p class="hint">No public rooms right now.</p>';
+      return;
+    }
+    listEl.innerHTML = '';
+    list.forEach(room => {
+      const row = document.createElement('div');
+      row.className = 'public-room-item';
+      row.innerHTML = `
+        <div class="public-room-info">
+          <span class="public-room-host">${escHtml(room.hostName)}'s room</span>
+          <span class="public-room-meta">${room.playerCount}/4 · score limit ${room.winScore}</span>
+        </div>
+        <button class="btn-join-pub" data-room="${escHtml(room.id)}">Join</button>`;
+      row.querySelector('.btn-join-pub').addEventListener('click', () => {
+        $('input-code').value = room.id;
+        joinGame();
+      });
+      listEl.appendChild(row);
+    });
+  } catch {
+    listEl.innerHTML = '<p class="hint" style="color:#ff6b6b">Failed to load rooms.</p>';
+  }
+}
+
 // ─── PWA install ──────────────────────────────────────────────
 window.addEventListener('beforeinstallprompt', e => {
   e.preventDefault();
@@ -1038,28 +1196,33 @@ window.addEventListener('DOMContentLoaded', () => {
       document.querySelectorAll('.tab-panel').forEach(p => p.classList.remove('active'));
       btn.classList.add('active');
       $(`tab-${btn.dataset.tab}`)?.classList.add('active');
+      if (btn.dataset.tab === 'join') loadPublicRooms();
     });
   });
 
+  // Visibility toggle (public/private)
+  document.querySelectorAll('.visibility-btn').forEach(btn => {
+    btn.addEventListener('click', () => {
+      document.querySelectorAll('.visibility-btn').forEach(b => b.classList.remove('active'));
+      btn.classList.add('active');
+      selectedPublic = btn.dataset.public === 'true';
+    });
+  });
+
+  // Public rooms refresh
+  $('btn-refresh-rooms').addEventListener('click', loadPublicRooms);
+
   // Create game
   $('btn-create').addEventListener('click', () => {
     const name = $('input-name').value.trim();
     if (!name) { $('lobby-error').textContent = 'Enter your name'; return; }
     $('lobby-error').textContent = '';
     myName = name;
-    socket.emit('create', { name, winScore: selectedScore });
+    socket.emit('create', { name, winScore: selectedScore, isPublic: selectedPublic });
   });
 
   // Join game
-  $('btn-join').addEventListener('click', () => {
+  $('btn-join').addEventListener('click', joinGame);
-    const name   = $('input-name').value.trim();
-    const roomId = $('input-code').value.trim().toUpperCase();
-    if (!name)   { $('lobby-error').textContent = 'Enter your name'; return; }
-    if (!roomId) { $('lobby-error').textContent = 'Enter a room code'; return; }
-    $('lobby-error').textContent = '';
-    myName = name;
-    socket.emit('join', { name, roomId });
-  });
 
   // Spectate
   $('btn-spectate').addEventListener('click', () => {
@@ -1090,6 +1253,13 @@ window.addEventListener('DOMContentLoaded', () => {
   // Pass overlay confirm
   $('btn-confirm-pass').addEventListener('click', confirmPass);
 
+  // AFK banner
+  $('afk-vote-btn').addEventListener('click', () => {
+    socket.emit('voteAITakeover', { roomId: myRoomId });
+    hide('afk-banner');
+  });
+  $('afk-dismiss-btn').addEventListener('click', () => hide('afk-banner'));
+
   // Leave game
   $('btn-leave-game').addEventListener('click', () => {
     if (spectating) {
@@ -1107,6 +1277,8 @@ window.addEventListener('DOMContentLoaded', () => {
     clearSession();
     socket.emit('leave', { roomId: myRoomId, seat: mySeat, token: myToken });
     myRoomId = null; mySeat = -1; myToken = null; spectating = false;
+    wasMyTurn = false; handleTurnReminder(false);
+    aiControlledSeats = new Set(); hide('afk-banner', 'ai-control-banner');
     showScreen('screen-lobby');
   });
   $('btn-exit-confirm-no').addEventListener('click', () => hide('overlay-exit-confirm'));
@@ -1116,6 +1288,8 @@ window.addEventListener('DOMContentLoaded', () => {
     hide('overlay-gameover');
     clearSession();
     myRoomId = null; mySeat = -1; myToken = null; spectating = false;
+    wasMyTurn = false; handleTurnReminder(false);
+    aiControlledSeats = new Set(); hide('afk-banner', 'ai-control-banner');
     showScreen('screen-lobby');
   });
 

public/index.html

@@ -51,15 +51,29 @@
           <button class="score-btn" data-score="200">200</button>
         </div>
       </div>
+      <div class="field">
+        <label>Visibility</label>
+        <div class="visibility-toggle">
+          <button class="visibility-btn active" data-public="false">🔒 Private</button>
+          <button class="visibility-btn" data-public="true">🌐 Public</button>
+        </div>
+      </div>
       <button id="btn-create" class="btn-primary">Create Game</button>
     </div>
 
     <div id="tab-join" class="tab-panel">
+      <div class="public-rooms-section">
+        <div class="rooms-header">
+          <span>Public Rooms</span>
+          <button id="btn-refresh-rooms" class="btn-refresh">↺ Refresh</button>
+        </div>
+        <div id="public-rooms-list"><p class="hint">Switch to this tab to load rooms.</p></div>
+      </div>
       <div class="field">
-        <label>Room Code</label>
+        <label>Or enter a Room Code</label>
         <input id="input-code" type="text" maxlength="8" placeholder="e.g. AB12CD" autocomplete="off" style="text-transform:uppercase">
       </div>
-      <button id="btn-join" class="btn-primary">Join Game</button>
+      <button id="btn-join" class="btn-primary">Join by Code</button>
       <hr style="border-color:rgba(255,255,255,.1);margin:4px 0">
       <div class="field">
         <label>Watch as spectator</label>
@@ -77,6 +91,7 @@
   <div class="waiting-box">
     <button id="btn-leave-waiting" class="btn-leave-screen">← Leave</button>
     <h2>Waiting for Players</h2>
+    <div id="waiting-public-badge" class="waiting-public-badge">🔒 Private</div>
     <div class="room-code-box">
       <span class="label">Room Code</span>
       <span id="display-room-code" class="room-code">——</span>
@@ -126,6 +141,18 @@
   <!-- Spectator banner -->
   <div id="spectator-banner" class="spectator-banner hidden">👁 Spectating — watching only</div>
 
+  <!-- AFK warning banner -->
+  <div id="afk-banner" class="afk-banner hidden">
+    <span id="afk-banner-msg"></span>
+    <button id="afk-vote-btn">Let AI Play</button>
+    <button id="afk-dismiss-btn">Dismiss</button>
+  </div>
+
+  <!-- AI control banner -->
+  <div id="ai-control-banner" class="ai-control-banner hidden">
+    <span id="ai-control-msg"></span>
+  </div>
+
   <!-- Table grid -->
   <div id="table-grid">
 

public/style.css

@@ -1019,3 +1019,165 @@ html, body {
   :root { --card-w: 52px; --card-h: 74px; }
   #my-area { padding-bottom: 4px; }
 }
+
+/* ── Visibility toggle (Create tab) ──────────── */
+.visibility-toggle {
+  display: flex;
+  gap: 8px;
+}
+.visibility-btn {
+  flex: 1;
+  padding: 8px;
+  border-radius: 8px;
+  border: 1px solid rgba(255,255,255,.2);
+  background: transparent;
+  color: rgba(255,255,255,.6);
+  font-size: .9rem;
+  cursor: pointer;
+  transition: all .2s;
+}
+.visibility-btn.active {
+  background: rgba(100,180,255,.2);
+  border-color: rgba(100,180,255,.5);
+  color: rgba(200,230,255,.95);
+  font-weight: 600;
+}
+
+/* ── Public rooms list (Join tab) ─────────────── */
+.public-rooms-section {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+}
+.rooms-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  font-size: .8rem;
+  color: rgba(255,255,255,.55);
+}
+.btn-refresh {
+  background: none;
+  border: 1px solid rgba(255,255,255,.2);
+  border-radius: 6px;
+  color: rgba(255,255,255,.6);
+  font-size: .75rem;
+  padding: 2px 8px;
+  cursor: pointer;
+  transition: background .15s;
+}
+.btn-refresh:hover { background: rgba(255,255,255,.1); color: #fff; }
+#public-rooms-list {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+  max-height: 160px;
+  overflow-y: auto;
+  scrollbar-width: thin;
+}
+.public-room-item {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 8px;
+  background: rgba(255,255,255,.07);
+  border: 1px solid rgba(255,255,255,.12);
+  border-radius: 8px;
+  padding: 8px 10px;
+}
+.public-room-info {
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+  overflow: hidden;
+}
+.public-room-host {
+  font-size: .85rem;
+  font-weight: 600;
+  color: #fff;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+.public-room-meta { font-size: .72rem; color: rgba(255,255,255,.5); }
+.btn-join-pub {
+  padding: 5px 12px;
+  background: var(--gold);
+  border: none;
+  border-radius: 6px;
+  color: #000;
+  font-size: .8rem;
+  font-weight: 700;
+  cursor: pointer;
+  white-space: nowrap;
+  flex-shrink: 0;
+  transition: opacity .15s;
+}
+.btn-join-pub:hover { opacity: .85; }
+
+/* ── Waiting room public badge ─────────────────── */
+.waiting-public-badge {
+  font-size: .78rem;
+  color: rgba(255,255,255,.65);
+  background: rgba(255,255,255,.09);
+  border: 1px solid rgba(255,255,255,.15);
+  border-radius: 10px;
+  padding: 2px 10px;
+  align-self: center;
+}
+
+/* ── Your-turn escalation ─────────────────────── */
+@keyframes your-turn-flash {
+  0%,100% { opacity:1; } 50% { opacity:.55; }
+}
+.phase-msg.your-turn-lvl1 {
+  font-size: .96rem; color: #ffc400;
+  animation: your-turn-flash .6s ease-in-out infinite;
+}
+.phase-msg.your-turn-lvl2 {
+  font-size: 1.18rem; color: #ffeb3b;
+  text-shadow: 0 0 10px #ffeb3b88;
+  animation: your-turn-flash .4s ease-in-out infinite;
+}
+.phase-msg.your-turn-lvl3 {
+  font-size: 1.4rem; color: #fff;
+  text-shadow: 0 0 22px #ffffffcc, 0 0 8px #ffcc00cc;
+  animation: your-turn-flash .25s ease-in-out infinite;
+}
+
+/* ── AFK warning banner ───────────────────────── */
+.afk-banner {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  padding: 7px 14px;
+  background: rgba(180,60,30,.88);
+  border-bottom: 1px solid rgba(255,120,60,.35);
+  font-size: .82rem;
+  flex-shrink: 0;
+}
+.afk-banner span { flex: 1; color: rgba(255,255,255,.9); }
+.afk-banner button {
+  padding: 3px 10px;
+  border-radius: 6px;
+  border: 1px solid rgba(255,255,255,.35);
+  background: rgba(255,255,255,.18);
+  color: #fff;
+  font-size: .76rem;
+  cursor: pointer;
+  white-space: nowrap;
+}
+.afk-banner button:hover { background: rgba(255,255,255,.3); }
+
+/* ── AI control banner ────────────────────────── */
+.ai-control-banner {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 5px 14px;
+  font-size: .8rem;
+  flex-shrink: 0;
+  color: rgba(255,255,255,.9);
+}
+.ai-control-banner.ai-self  { background: rgba(190,40,90,.75); border-bottom: 1px solid rgba(255,80,140,.25); }
+.ai-control-banner.ai-other { background: rgba(70,45,160,.75); border-bottom: 1px solid rgba(120,90,220,.25); }

server.js

@@ -348,6 +348,20 @@ app.get('/api/leaderboard', (_req, res) => {
   res.json(rows);
 });
 
+app.get('/api/rooms', (_req, res) => {
+  const list = [];
+  for (const [, room] of rooms) {
+    if (!room.isPublic || room.state !== 'WAITING') continue;
+    list.push({
+      id:          room.id,
+      playerCount: room.seats.filter(Boolean).length + room.bots.filter(Boolean).length,
+      winScore:    room.winScore,
+      hostName:    room.names[0] || '?',
+    });
+  }
+  res.json(list);
+});
+
 app.post('/api/admin/toggle-signups', requireAuth, (req, res) => {
   if (!isAdmin(req.user)) return res.status(403).json({ error: 'Forbidden' });
   config.signupsOpen = !config.signupsOpen;
@@ -415,8 +429,14 @@ function newRoom(id) {
     moonShooter:   -1,
     handDeltas:    null,
     winScore:      100,
-    spectators:    new Set(),
+    spectators:        new Set(),
-    trickTimer:    null,
+    isPublic:          false,
+    createdAt:         Date.now(),
+    trickTimer:        null,
+    afkTimer:          null,
+    afkSeat:           -1,
+    afkVotes:          new Set(),
+    aiControlledSeats: new Set(),
   };
 }
 
@@ -452,7 +472,9 @@ function publicInfo(room, seat = -1) {
     moonShooter:     room.moonShooter,
     handDeltas:      room.handDeltas,
     gameWinner:      room.gameWinner,
-    spectatorCount:  room.spectators.size,
+    spectatorCount:    room.spectators.size,
+    isPublic:          room.isPublic,
+    aiControlledSeats: [...room.aiControlledSeats],
   };
 }
 
@@ -468,6 +490,46 @@ function broadcastState(room, event = 'roomInfo') {
   }
 }
 
+// ─── AFK / AI-takeover helpers ────────────────────────────────
+function broadcast(room, event, data) {
+  for (let i = 0; i < 4; i++) {
+    if (room.seats[i]) io.to(room.seats[i]).emit(event, data);
+  }
+  for (const sid of room.spectators) io.to(sid).emit(event, data);
+}
+
+function clearAfkTimer(room) {
+  if (room.afkTimer) { clearTimeout(room.afkTimer); room.afkTimer = null; }
+  if (room.afkSeat >= 0) {
+    broadcast(room, 'afkResolved', {});
+    room.afkSeat = -1;
+    room.afkVotes.clear();
+  }
+}
+
+function broadcastAiControl(room, seat, active) {
+  broadcast(room, 'aiControl', { seat, active, name: room.names[seat] });
+}
+
+function scheduleAfkTimer(room) {
+  clearAfkTimer(room);
+  const seat = room.currentTurn;
+  if (room.bots[seat]) return;
+  if (room.aiControlledSeats.has(seat)) {
+    room.afkTimer = setTimeout(() => {
+      if (room.state !== 'PLAYING' || room.currentTurn !== seat) return;
+      const card = botChooseCard(room, seat);
+      if (card) onCardPlayed(room, seat, card);
+    }, 10000);
+  } else {
+    room.afkSeat = seat;
+    room.afkTimer = setTimeout(() => {
+      if (room.state !== 'PLAYING') return;
+      broadcast(room, 'afkWarning', { seat, name: room.names[seat] });
+    }, 60000);
+  }
+}
+
 // ─── Dealing ──────────────────────────────────────────────────
 function dealHand(room) {
   const deck = shuffle(makeDeck());
@@ -563,6 +625,7 @@ function exchangePassCards(room) {
 
 // ─── Game flow ────────────────────────────────────────────────
 function startPassing(room) {
+  clearAfkTimer(room);
   room.state = 'PASSING';
   broadcastState(room, 'roomInfo');
   // Schedule bots to pass
@@ -578,6 +641,7 @@ function startPlaying(room) {
   room.trick       = [];
   broadcastState(room, 'roomInfo');
   scheduleBotPlay(room);
+  scheduleAfkTimer(room);
 }
 
 function onCardPlayed(room, player, card) {
@@ -592,6 +656,7 @@ function onCardPlayed(room, player, card) {
     room.currentTurn = (player + 3) % 4; // anti-clockwise
     broadcastState(room, 'cardPlayed');
     scheduleBotPlay(room);
+    scheduleAfkTimer(room);
     return;
   }
 
@@ -605,10 +670,12 @@ function onCardPlayed(room, player, card) {
 
   if (room.tricksPlayed === 13) {
     broadcastState(room, 'trickWon');
+    clearAfkTimer(room);
     if (room.trickTimer) clearTimeout(room.trickTimer);
     room.trickTimer = setTimeout(() => finishHand(room), 1400);
   } else {
     broadcastState(room, 'trickWon');
+    clearAfkTimer(room);
     if (room.trickTimer) clearTimeout(room.trickTimer);
     room.trickTimer = setTimeout(() => {
       room.trickLead   = winner;
@@ -616,11 +683,15 @@ function onCardPlayed(room, player, card) {
       room.trick       = [];
       broadcastState(room, 'roomInfo');
       scheduleBotPlay(room);
+      scheduleAfkTimer(room);
     }, 1400);
   }
 }
 
 function finishHand(room) {
+  clearAfkTimer(room);
+  for (const s of room.aiControlledSeats) broadcastAiControl(room, s, false);
+  room.aiControlledSeats.clear();
   // Check shoot the moon (one player has all 26 pts)
   const shooter = room.handPoints.findIndex(p => p === 26);
   let deltas;
@@ -815,14 +886,25 @@ io.use((socket, next) => {
 
 io.on('connection', (socket) => {
   const user = socket.data.user;
-  if (user) userSockets.set(user.id, socket);
+  if (user) {
+    userSockets.set(user.id, socket);
+    // Push active game to this user on any device (cross-device rejoin)
+    for (const [, room] of rooms) {
+      const seat = room.userIds.indexOf(user.id);
+      if (seat >= 0 && room.tokens[seat] !== null && room.state !== 'GAME_OVER') {
+        socket.emit('hasActiveGame', { roomId: room.id, seat, token: room.tokens[seat] });
+        break;
+      }
+    }
+  }
 
   // ── Create room ────────────────────────────────────────────
-  socket.on('create', ({ name, winScore } = {}) => {
+  socket.on('create', ({ name, winScore, isPublic } = {}) => {
     if (!name?.trim()) return socket.emit('error', 'Name is required');
     const id   = Math.random().toString(36).slice(2, 8).toUpperCase();
     const room = newRoom(id);
     room.winScore   = Number.isFinite(+winScore) && winScore >= 50 ? Math.min(+winScore, 500) : 100;
+    room.isPublic   = isPublic === true;
     room.names[0]   = name.trim().slice(0, 16);
     room.userIds[0] = user?.id || null;
     room.seats[0]   = socket.id;
@@ -840,12 +922,14 @@ io.on('connection', (socket) => {
     if (!room) return socket.emit('joinError', 'Room not found');
     if (room.state !== 'WAITING') return socket.emit('joinError', 'Game already in progress');
 
-    // Find first open seat (not filled by a human or bot)
+    const openSeats = [];
-    let openSeat = -1;
     for (let i = 0; i < 4; i++) {
-      if (!room.seats[i] && !room.bots[i]) { openSeat = i; break; }
+      if (!room.seats[i] && !room.bots[i]) openSeats.push(i);
     }
-    if (openSeat === -1) return socket.emit('joinError', 'Room is full');
+    if (openSeats.length === 0) return socket.emit('joinError', 'Room is full');
+    const openSeat = room.isPublic
+      ? openSeats[Math.floor(Math.random() * openSeats.length)]
+      : openSeats[0];
 
     room.names[openSeat]   = name.trim().slice(0, 16);
     room.userIds[openSeat] = user?.id || null;
@@ -874,11 +958,21 @@ io.on('connection', (socket) => {
   socket.on('rejoin', ({ roomId, seat, token } = {}) => {
     const room = rooms.get((roomId || '').toUpperCase());
     if (!room) return socket.emit('rejoinError', 'Room no longer exists');
-    if (room.tokens[seat] !== token) return socket.emit('rejoinError', 'Invalid session token');
+
+    const tokenOk = room.tokens[seat] === token;
+    const userOk  = user &&
+                    room.userIds[seat] != null &&
+                    room.userIds[seat] === user.id &&
+                    room.tokens[seat] !== null; // null means player explicitly left
+
+    if (!tokenOk && !userOk) return socket.emit('rejoinError', 'Invalid session token');
+
+    // Re-issue a fresh token when only userId matched (old token lives on the other device)
+    if (!tokenOk) room.tokens[seat] = makeToken();
 
     room.seats[seat] = socket.id;
     socket.join(room.id);
-    socket.emit('rejoined', { roomId: room.id, seat, token });
+    socket.emit('rejoined', { roomId: room.id, seat, token: room.tokens[seat] });
     socket.emit('roomInfo', publicInfo(room, seat));
     broadcastState(room, 'roomInfo');
   });
@@ -929,16 +1023,49 @@ io.on('connection', (socket) => {
     if (room.tokens[seat] !== token) return;
     if (room.currentTurn !== seat) return socket.emit('playError', 'Not your turn');
     if (!isLegal(room, seat, card)) return socket.emit('playError', 'Illegal card');
+    if (room.aiControlledSeats.has(seat)) {
+      room.aiControlledSeats.delete(seat);
+      broadcastAiControl(room, seat, false);
+      clearAfkTimer(room);
+    }
     onCardPlayed(room, seat, card);
   });
 
+  // ── Vote to let AI take over an AFK player ────────────────
+  socket.on('voteAITakeover', ({ roomId } = {}) => {
+    const room = rooms.get((roomId || '').toUpperCase());
+    if (!room || room.state !== 'PLAYING') return;
+    if (room.afkSeat < 0) return;
+
+    const voterSeat = room.seats.indexOf(socket.id);
+    if (voterSeat < 0 || voterSeat === room.afkSeat || room.bots[voterSeat]) return;
+
+    room.afkVotes.add(socket.id);
+
+    const eligible = room.seats.filter((s, i) => s && !room.bots[i] && i !== room.afkSeat).length;
+    const needed   = eligible <= 1 ? 1 : Math.floor(eligible / 2) + 1;
+    const votes    = [...room.afkVotes].filter(sid => {
+      const idx = room.seats.indexOf(sid);
+      return idx >= 0 && idx !== room.afkSeat && !room.bots[idx];
+    }).length;
+
+    if (votes >= needed) {
+      const seat = room.afkSeat;
+      room.aiControlledSeats.add(seat);
+      broadcastAiControl(room, seat, true);
+      clearAfkTimer(room);
+      scheduleAfkTimer(room);
+    }
+  });
+
   // ── Leave ──────────────────────────────────────────────────
   socket.on('leave', ({ roomId, seat, token } = {}) => {
     const room = rooms.get((roomId || '').toUpperCase());
     if (!room) return;
     if (room.tokens[seat] === token) {
-      room.seats[seat] = null;
+      room.seats[seat]   = null;
-      room.tokens[seat] = null;
+      room.tokens[seat]  = null;
+      room.userIds[seat] = null;
     }
     socket.leave(room.id);
   });
@@ -949,6 +1076,19 @@ io.on('connection', (socket) => {
   });
 });
 
+// ─── Stale public room cleanup ─────────────────────────────────
+const SIX_HOURS_MS = 6 * 60 * 60 * 1000;
+setInterval(() => {
+  const now = Date.now();
+  for (const [id, room] of rooms) {
+    if (room.isPublic && room.state === 'WAITING' && now - room.createdAt > SIX_HOURS_MS) {
+      if (room.trickTimer) clearTimeout(room.trickTimer);
+      if (room.afkTimer)   clearTimeout(room.afkTimer);
+      rooms.delete(id);
+    }
+  }
+}, 30 * 60 * 1000);
+
 // ─── Server startup ────────────────────────────────────────────
 httpServer.listen(HTTP_PORT, () =>
   console.log(`Hearts HTTP  → http://localhost:${HTTP_PORT}`)