drive-coding/page.html at main · ekras-doloop/drive-coding · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
<title>Drive Coding</title>
<style>
  :root {
    --bg: #0d1117;
    --surface: #161b22;
    --border: #30363d;
    --text: #e6edf3;
    --muted: #8b949e;
    --accent: #58a6ff;
    --recording: #f85149;
    --success: #3fb950;
    --play: #3fb950;
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-user-select: none;
    user-select: none;
  }
  header {
    padding: 12px 20px 10px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  header h1 { font-size: 17px; font-weight: 600; letter-spacing: -0.3px; }
  .status {
    font-size: 12px;
    color: var(--muted);
    display: flex;
    align-items: center;
    gap: 6px;
  }
  .status-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--success);
  }
  .status-dot.active { background: var(--accent); animation: pulse 1.5s infinite; }
  .status-dot.recording { background: var(--recording); animation: pulse 0.8s infinite; }
  .status-dot.ready-play { background: var(--play); }
  @keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

  #transcript {
    flex: 1;
    overflow-y: auto;
    padding: 12px 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    -webkit-overflow-scrolling: touch;
  }
  .msg {
    max-width: 85%;
    padding: 10px 14px;
    border-radius: 16px;
    font-size: 15px;
    line-height: 1.4;
    word-wrap: break-word;
  }
  .msg.user {
    align-self: flex-end;
    background: var(--accent);
    color: #fff;
    border-bottom-right-radius: 4px;
  }
  .msg.assistant {
    align-self: flex-start;
    background: var(--surface);
    border: 1px solid var(--border);
    border-bottom-left-radius: 4px;
  }
  .msg .meta { font-size: 11px; color: var(--muted); margin-top: 4px; }
  .msg.user .meta { color: rgba(255,255,255,0.6); }

  .controls {
    padding: 12px 20px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
  }

  /* The Big Button */
  #walkie-btn {
    width: 96px;
    height: 96px;
    border-radius: 50%;
    border: 4px solid var(--accent);
    background: transparent;
    color: var(--accent);
    font-size: 14px;
    font-weight: 600;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    cursor: pointer;
    transition: all 0.2s;
    -webkit-tap-highlight-color: transparent;
  }
  #walkie-btn .icon { font-size: 32px; line-height: 1; }
  #walkie-btn .label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; }

  #walkie-btn.recording {
    border-color: var(--recording);
    background: var(--recording);
    color: #fff;
    animation: pulse-border 1s infinite;
  }
  #walkie-btn.waiting {
    border-color: var(--accent);
    color: var(--muted);
    opacity: 0.5;
    pointer-events: none;
  }
  #walkie-btn.play-ready {
    border-color: var(--play);
    background: var(--play);
    color: #fff;
    animation: pulse-border-green 1.5s infinite;
  }
  #walkie-btn.speaking {
    border-color: var(--play);
    color: var(--play);
    opacity: 0.8;
  }
  @keyframes pulse-border {
    0%,100% { box-shadow: 0 0 0 0 rgba(248,81,73,0.4); }
    50% { box-shadow: 0 0 0 14px rgba(248,81,73,0); }
  }
  @keyframes pulse-border-green {
    0%,100% { box-shadow: 0 0 0 0 rgba(63,185,80,0.4); }
    50% { box-shadow: 0 0 0 14px rgba(63,185,80,0); }
  }

  .text-input-row {
    display: flex;
    gap: 8px;
    width: 100%;
  }
  #text-input {
    flex: 1;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 10px 14px;
    border-radius: 20px;
    font-size: 14px;
    outline: none;
  }
  #text-input:focus { border-color: var(--accent); }
  #send-btn {
    width: 40px; height: 40px;
    border-radius: 50%;
    border: none;
    background: var(--accent);
    color: #fff;
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-tap-highlight-color: transparent;
  }
  .settings {
    display: flex;
    gap: 16px;
    font-size: 11px;
    color: var(--muted);
  }
  .settings label { display: flex; align-items: center; gap: 4px; }
  .settings input[type="range"] { width: 60px; }
  #loop-val { min-width: 20px; text-align: center; }
</style>
</head>
<body>

<header>
  <h1>Drive Coding</h1>
  <div class="status">
    <div class="status-dot" id="status-dot"></div>
    <span id="status-text">Ready</span>
  </div>
</header>

<div id="transcript"></div>

<div class="controls">
  <button id="walkie-btn">
    <span class="icon" id="btn-icon">&#x1F3A4;</span>
    <span class="label" id="btn-label">Record</span>
  </button>
  <div class="text-input-row">
    <input type="text" id="text-input" placeholder="or type..." autocomplete="off" autocorrect="on">
    <button id="send-btn">
      <svg width="18" height="18" viewBox="0 0 24 24" fill="currentColor"><path d="M2.01 21L23 12 2.01 3 2 10l15 2-15 2z"/></svg>
    </button>
  </div>
  <div class="settings">
    <label>Poll <input type="range" id="loop-speed" min="2" max="30" value="5" step="1"><span id="loop-val">5s</span></label>
  </div>
</div>

<script>
// ─── State machine ──────────────────────────────────────────
let state = 'idle';
let mediaRecorder = null;
let audioChunks = [];
let pollTimer = null;
let pendingText = '';
let currentAudio = null; // Audio element for Kokoro playback

const transcript = document.getElementById('transcript');
const walkieBtn = document.getElementById('walkie-btn');
const btnIcon = document.getElementById('btn-icon');
const btnLabel = document.getElementById('btn-label');
const statusDot = document.getElementById('status-dot');
const statusText = document.getElementById('status-text');
const loopSpeed = document.getElementById('loop-speed');
const loopVal = document.getElementById('loop-val');
const textInput = document.getElementById('text-input');
const sendBtn = document.getElementById('send-btn');
const synth = window.speechSynthesis;

function setState(newState) {
  state = newState;
  walkieBtn.className = '';
  statusDot.className = 'status-dot';
  switch (state) {
    case 'idle':
      btnIcon.textContent = '\u{1F3A4}';
      btnLabel.textContent = 'Record';
      setStatus('Tap to talk');
      break;
    case 'recording':
      walkieBtn.className = 'recording';
      statusDot.className = 'status-dot recording';
      btnIcon.textContent = '\u{23F9}';
      btnLabel.textContent = 'Stop';
      setStatus('Recording...');
      break;
    case 'sending':
      walkieBtn.className = 'waiting';
      statusDot.className = 'status-dot active';
      btnIcon.textContent = '\u{2197}';
      btnLabel.textContent = 'Sending';
      setStatus('Transcribing...');
      break;
    case 'waiting':
      walkieBtn.className = 'waiting';
      statusDot.className = 'status-dot active';
      btnIcon.textContent = '\u{231B}';
      btnLabel.textContent = 'Waiting';
      setStatus('Waiting for Claude...');
      break;
    case 'play-ready':
      walkieBtn.className = 'play-ready';
      statusDot.className = 'status-dot ready-play';
      btnIcon.textContent = '\u{25B6}';
      btnLabel.textContent = 'Play';
      setStatus('Response ready \u2014 tap to hear');
      break;
    case 'speaking':
      walkieBtn.className = 'speaking';
      statusDot.className = 'status-dot active';
      btnIcon.textContent = '\u{1F50A}';
      btnLabel.textContent = 'Playing';
      setStatus('Speaking...');
      break;
  }
}

// ─── The Big Button handler ──────────────────────────────────
walkieBtn.addEventListener('click', async () => {
  switch (state) {
    case 'idle':
      startRecording();
      break;
    case 'recording':
      stopRecording();
      break;
    case 'play-ready':
      playResponse();
      break;
    case 'speaking':
      // Barge-in: kill audio, start recording
      stopAudio();
      pendingText = '';
      startRecording();
      break;
  }
});

// ─── Stop any playing audio ─────────────────────────────────
function stopAudio() {
  if (currentAudio) {
    currentAudio.pause();
    currentAudio.src = '';
    currentAudio = null;
  }
  synth.cancel();
}

// ─── MediaRecorder ───────────────────────────────────────────
async function startRecording() {
  try {
    const stream = await navigator.mediaDevices.getUserMedia({ audio: true });
    const mimeType = MediaRecorder.isTypeSupported('audio/webm;codecs=opus')
      ? 'audio/webm;codecs=opus' : 'audio/mp4';
    mediaRecorder = new MediaRecorder(stream, { mimeType });
    audioChunks = [];
    mediaRecorder.ondataavailable = (e) => {
      if (e.data.size > 0) audioChunks.push(e.data);
    };
    mediaRecorder.onstop = async () => {
      stream.getTracks().forEach(t => t.stop());
      if (audioChunks.length === 0) { setState('idle'); return; }
      const blob = new Blob(audioChunks, { type: mimeType });
      if (blob.size < 1000) { setState('idle'); return; }
      await sendAudio(blob, mimeType);
    };
    mediaRecorder.start();
    setState('recording');
  } catch (e) {
    console.error('Mic error:', e);
    setStatus('Mic access denied');
  }
}

function stopRecording() {
  if (mediaRecorder && state === 'recording') {
    setState('sending');
    mediaRecorder.stop();
  }
}

// ─── Send audio to server ────────────────────────────────────
async function sendAudio(blob, mimeType) {
  const formData = new FormData();
  const ext = mimeType.includes('mp4') ? 'mp4' : 'webm';
  formData.append('audio', blob, `recording.${ext}`);
  try {
    const r = await fetch('/inbox-audio', { method: 'POST', body: formData });
    const data = await r.json();
    if (data.text && data.text.trim()) {
      addMessage(data.text, 'user');
      setState('waiting');
      startPolling();
    } else {
      setStatus('No speech detected');
      setTimeout(() => setState('idle'), 1500);
    }
  } catch (e) {
    console.error(e);
    setStatus('Send failed');
    setTimeout(() => setState('idle'), 1500);
  }
}

// ─── Text input (fallback) ───────────────────────────────────
async function sendToInbox(text) {
  addMessage(text, 'user');
  setState('waiting');
  try {
    const r = await fetch('/inbox', {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ text }),
    });
    if (r.ok) startPolling();
  } catch (e) {
    setStatus('Send failed');
    setTimeout(() => setState('idle'), 1500);
  }
}

// ─── Poll for response ───────────────────────────────────────
function startPolling() {
  if (pollTimer) clearInterval(pollTimer);
  const interval = parseInt(loopSpeed.value) * 1000;
  pollOutbox();
  pollTimer = setInterval(pollOutbox, interval);
}

async function pollOutbox() {
  try {
    const r = await fetch('/outbox');
    const data = await r.json();
    if (data.text) {
      if (pollTimer) { clearInterval(pollTimer); pollTimer = null; }
      addMessage(data.text, 'assistant');
      saveMessages();
      pendingText = data.text;
      setState('play-ready');
    }
  } catch (e) {
    console.error('Poll error:', e);
  }
}

// ─── Play response (server-side Kokoro TTS → audio element) ─
async function playResponse() {
  if (!pendingText) { setState('idle'); return; }
  setState('speaking');

  // Try server-side Kokoro TTS first
  try {
    const r = await fetch('/tts', {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ text: pendingText }),
    });
    if (r.ok) {
      const blob = await r.blob();
      const url = URL.createObjectURL(blob);
      currentAudio = new Audio(url);
      currentAudio.onended = () => {
        URL.revokeObjectURL(url);
        currentAudio = null;
        if (state === 'speaking') { pendingText = ''; setState('idle'); }
      };
      currentAudio.onerror = () => {
        URL.revokeObjectURL(url);
        currentAudio = null;
        fallbackTTS();
      };
      currentAudio.play();
      // Safety timeout
      setTimeout(() => { if (state === 'speaking') { stopAudio(); pendingText = ''; setState('idle'); } }, 60000);
      return;
    }
  } catch (e) {
    console.error('Kokoro TTS fetch failed:', e);
  }

  // Fallback: browser speechSynthesis
  fallbackTTS();
}

function fallbackTTS() {
  if (!synth || !pendingText) { pendingText = ''; setState('idle'); return; }
  const utt = new SpeechSynthesisUtterance(pendingText);
  const voices = synth.getVoices();
  const preferred = ['Samantha', 'Karen', 'Daniel', 'Moira'];
  for (const name of preferred) {
    const v = voices.find(v => v.name.includes(name) && v.lang.startsWith('en'));
    if (v) { utt.voice = v; break; }
  }
  utt.rate = 1.0;
  utt.onend = () => { pendingText = ''; setState('idle'); };
  utt.onerror = () => { pendingText = ''; setState('idle'); };
  setTimeout(() => { if (state === 'speaking') setState('idle'); }, 30000);
  synth.speak(utt);
}

// ─── Persistence ─────────────────────────────────────────────
const STORAGE_KEY = 'drivecoding_messages';
function saveMessages() {
  const msgs = [];
  transcript.querySelectorAll('.msg').forEach(el => {
    msgs.push({
      role: el.classList.contains('user') ? 'user' : 'assistant',
      html: el.innerHTML,
    });
  });
  try { localStorage.setItem(STORAGE_KEY, JSON.stringify(msgs)); } catch(e) {}
}
function loadMessages() {
  try {
    const saved = JSON.parse(localStorage.getItem(STORAGE_KEY) || '[]');
    saved.forEach(m => {
      const div = document.createElement('div');
      div.className = `msg ${m.role}`;
      div.innerHTML = m.html;
      transcript.appendChild(div);
    });
    if (saved.length) transcript.scrollTop = transcript.scrollHeight;
  } catch(e) {}
}

// ─── UI helpers ──────────────────────────────────────────────
function addMessage(text, role) {
  const div = document.createElement('div');
  div.className = `msg ${role}`;
  const time = new Date().toLocaleTimeString([], { hour: '2-digit', minute: '2-digit' });
  div.innerHTML = `${escapeHtml(text)}<div class="meta">${time}</div>`;
  transcript.appendChild(div);
  transcript.scrollTop = transcript.scrollHeight;
  saveMessages();
}
function escapeHtml(s) {
  const d = document.createElement('div');
  d.textContent = s;
  return d.innerHTML;
}
function setStatus(text) {
  statusText.textContent = text;
}

// ─── Event Handlers ──────────────────────────────────────────
loopSpeed.addEventListener('input', () => { loopVal.textContent = loopSpeed.value + 's'; });
function sendTextInput() {
  const text = textInput.value.trim();
  if (!text || state === 'waiting' || state === 'sending') return;
  textInput.value = '';
  sendToInbox(text);
}
sendBtn.addEventListener('click', sendTextInput);
textInput.addEventListener('keydown', (e) => {
  if (e.key === 'Enter') { e.preventDefault(); sendTextInput(); }
});

// Wake lock
async function requestWakeLock() {
  try { if ('wakeLock' in navigator) await navigator.wakeLock.request('screen'); } catch(e) {}
}
document.addEventListener('visibilitychange', () => {
  if (document.visibilityState === 'visible') requestWakeLock();
});
requestWakeLock();

// ─── Init ────────────────────────────────────────────────────
loadMessages();
setState('idle');
</script>
</body>
</html>