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| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
| <title>Gemini Voice Chat</title> | |
| <style> | |
| :root { | |
| --color-accent: #6366f1; | |
| --color-background: #0f172a; | |
| --color-surface: #1e293b; | |
| --color-text: #e2e8f0; | |
| --boxSize: 8px; | |
| --gutter: 4px; | |
| } | |
| body { | |
| margin: 0; | |
| padding: 0; | |
| background-color: var(--color-background); | |
| color: var(--color-text); | |
| font-family: system-ui, -apple-system, sans-serif; | |
| min-height: 100vh; | |
| display: flex; | |
| flex-direction: column; | |
| align-items: center; | |
| justify-content: center; | |
| } | |
| .container { | |
| width: 90%; | |
| max-width: 800px; | |
| background-color: var(--color-surface); | |
| padding: 2rem; | |
| border-radius: 1rem; | |
| box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25); | |
| } | |
| .wave-container { | |
| position: relative; | |
| display: flex; | |
| min-height: 100px; | |
| max-height: 128px; | |
| justify-content: center; | |
| align-items: center; | |
| margin: 2rem 0; | |
| } | |
| .box-container { | |
| display: flex; | |
| justify-content: space-between; | |
| height: 64px; | |
| width: 100%; | |
| } | |
| .box { | |
| height: 100%; | |
| width: var(--boxSize); | |
| background: var(--color-accent); | |
| border-radius: 8px; | |
| transition: transform 0.05s ease; | |
| } | |
| .controls { | |
| display: grid; | |
| gap: 1rem; | |
| margin-bottom: 2rem; | |
| } | |
| .input-group { | |
| display: flex; | |
| flex-direction: column; | |
| gap: 0.5rem; | |
| } | |
| label { | |
| font-size: 0.875rem; | |
| font-weight: 500; | |
| } | |
| input, | |
| select { | |
| padding: 0.75rem; | |
| border-radius: 0.5rem; | |
| border: 1px solid rgba(255, 255, 255, 0.1); | |
| background-color: var(--color-background); | |
| color: var(--color-text); | |
| font-size: 1rem; | |
| } | |
| button { | |
| padding: 1rem 2rem; | |
| border-radius: 0.5rem; | |
| border: none; | |
| background-color: var(--color-accent); | |
| color: white; | |
| font-weight: 600; | |
| cursor: pointer; | |
| transition: all 0.2s ease; | |
| display: flex; | |
| align-items: center; | |
| justify-content: center; | |
| gap: 12px; | |
| min-width: 180px; | |
| } | |
| button:hover { | |
| opacity: 0.9; | |
| transform: translateY(-1px); | |
| } | |
| .icon-with-spinner { | |
| display: flex; | |
| align-items: center; | |
| justify-content: center; | |
| gap: 12px; | |
| min-width: 180px; | |
| } | |
| .spinner { | |
| width: 20px; | |
| height: 20px; | |
| border: 2px solid white; | |
| border-top-color: transparent; | |
| border-radius: 50%; | |
| animation: spin 1s linear infinite; | |
| flex-shrink: 0; | |
| } | |
| @keyframes spin { | |
| to { | |
| transform: rotate(360deg); | |
| } | |
| } | |
| .pulse-container { | |
| display: flex; | |
| align-items: center; | |
| justify-content: center; | |
| gap: 12px; | |
| } | |
| .pulse-circle { | |
| width: 20px; | |
| height: 20px; | |
| border-radius: 50%; | |
| background-color: white; | |
| opacity: 0.2; | |
| flex-shrink: 0; | |
| transform: translateX(-0%) scale(var(--audio-level, 1)); | |
| transition: transform 0.1s ease; | |
| } | |
| /* Add styles for toast notifications */ | |
| .toast { | |
| position: fixed; | |
| top: 20px; | |
| left: 50%; | |
| transform: translateX(-50%); | |
| padding: 16px 24px; | |
| border-radius: 4px; | |
| font-size: 14px; | |
| z-index: 1000; | |
| display: none; | |
| box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2); | |
| } | |
| .toast.error { | |
| background-color: #f44336; | |
| color: white; | |
| } | |
| .toast.warning { | |
| background-color: #ffd700; | |
| color: black; | |
| } | |
| /* Add styles for the mute toggle */ | |
| .mute-toggle { | |
| width: 24px; | |
| height: 24px; | |
| cursor: pointer; | |
| flex-shrink: 0; | |
| } | |
| .mute-toggle svg { | |
| display: block; | |
| } | |
| #start-button { | |
| margin-left: auto; | |
| margin-right: auto; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <!-- Add toast element after body opening tag --> | |
| <div id="error-toast" class="toast"></div> | |
| <div style="text-align: center"> | |
| <h1>Gemini Voice Chat</h1> | |
| <p>Speak with Gemini using real-time audio streaming</p> | |
| <p> | |
| Get a Gemini API key | |
| <a href="https://ai.google.dev/gemini-api/docs/api-key">here</a> | |
| </p> | |
| </div> | |
| <div class="container"> | |
| <div class="controls"> | |
| <div class="input-group"> | |
| <label for="api-key">API Key</label> | |
| <input type="password" id="api-key" placeholder="Enter your API key"> | |
| </div> | |
| <div class="input-group"> | |
| <label for="voice">Voice</label> | |
| <select id="voice"> | |
| <option value="Puck">Puck</option> | |
| <option value="Charon">Charon</option> | |
| <option value="Kore">Kore</option> | |
| <option value="Fenrir">Fenrir</option> | |
| <option value="Aoede">Aoede</option> | |
| </select> | |
| </div> | |
| </div> | |
| <div class="wave-container"> | |
| <div class="box-container"> | |
| <!-- Boxes will be dynamically added here --> | |
| </div> | |
| </div> | |
| <button id="start-button">Start Recording</button> | |
| </div> | |
| <audio id="audio-output"></audio> | |
| <script> | |
| let peerConnection; | |
| let audioContext; | |
| let dataChannel; | |
| let isRecording = false; | |
| let webrtc_id; | |
| let isMuted = false; | |
| let analyser_input, dataArray_input; | |
| let analyser, dataArray; | |
| let source_input = null; | |
| let source_output = null; | |
| const startButton = document.getElementById('start-button'); | |
| const apiKeyInput = document.getElementById('api-key'); | |
| const voiceSelect = document.getElementById('voice'); | |
| const audioOutput = document.getElementById('audio-output'); | |
| const boxContainer = document.querySelector('.box-container'); | |
| const numBars = 32; | |
| for (let i = 0; i < numBars; i++) { | |
| const box = document.createElement('div'); | |
| box.className = 'box'; | |
| boxContainer.appendChild(box); | |
| } | |
| // SVG Icons | |
| const micIconSVG = ` | |
| <svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"> | |
| <path d="M12 1a3 3 0 0 0-3 3v8a3 3 0 0 0 6 0V4a3 3 0 0 0-3-3z"></path> | |
| <path d="M19 10v2a7 7 0 0 1-14 0v-2"></path> | |
| <line x1="12" y1="19" x2="12" y2="23"></line> | |
| <line x1="8" y1="23" x2="16" y2="23"></line> | |
| </svg>`; | |
| const micMutedIconSVG = ` | |
| <svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"> | |
| <path d="M12 1a3 3 0 0 0-3 3v8a3 3 0 0 0 6 0V4a3 3 0 0 0-3-3z"></path> | |
| <path d="M19 10v2a7 7 0 0 1-14 0v-2"></path> | |
| <line x1="12" y1="19" x2="12" y2="23"></line> | |
| <line x1="8" y1="23" x2="16" y2="23"></line> | |
| <line x1="1" y1="1" x2="23" y2="23"></line> | |
| </svg>`; | |
| function updateButtonState() { | |
| startButton.innerHTML = ''; | |
| startButton.onclick = null; | |
| if (peerConnection && (peerConnection.connectionState === 'connecting' || peerConnection.connectionState === 'new')) { | |
| startButton.innerHTML = ` | |
| <div class="icon-with-spinner"> | |
| <div class="spinner"></div> | |
| <span>Connecting...</span> | |
| </div> | |
| `; | |
| startButton.disabled = true; | |
| } else if (peerConnection && peerConnection.connectionState === 'connected') { | |
| const pulseContainer = document.createElement('div'); | |
| pulseContainer.className = 'pulse-container'; | |
| pulseContainer.innerHTML = ` | |
| <div class="pulse-circle"></div> | |
| <span>Stop Recording</span> | |
| `; | |
| const muteToggle = document.createElement('div'); | |
| muteToggle.className = 'mute-toggle'; | |
| muteToggle.title = isMuted ? 'Unmute' : 'Mute'; | |
| muteToggle.innerHTML = isMuted ? micMutedIconSVG : micIconSVG; | |
| muteToggle.addEventListener('click', toggleMute); | |
| startButton.appendChild(pulseContainer); | |
| startButton.appendChild(muteToggle); | |
| startButton.disabled = false; | |
| } else { | |
| startButton.innerHTML = 'Start Recording'; | |
| startButton.disabled = false; | |
| } | |
| } | |
| function showError(message) { | |
| const toast = document.getElementById('error-toast'); | |
| toast.textContent = message; | |
| toast.className = 'toast error'; | |
| toast.style.display = 'block'; | |
| // Hide toast after 5 seconds | |
| setTimeout(() => { | |
| toast.style.display = 'none'; | |
| }, 5000); | |
| } | |
| function toggleMute(event) { | |
| event.stopPropagation(); | |
| if (!peerConnection || peerConnection.connectionState !== 'connected') return; | |
| isMuted = !isMuted; | |
| console.log("Mute toggled:", isMuted); | |
| peerConnection.getSenders().forEach(sender => { | |
| if (sender.track && sender.track.kind === 'audio') { | |
| sender.track.enabled = !isMuted; | |
| console.log(`Audio track ${sender.track.id} enabled: ${!isMuted}`); | |
| } | |
| }); | |
| updateButtonState(); | |
| } | |
| async function setupWebRTC() { | |
| const config = __RTC_CONFIGURATION__; | |
| peerConnection = new RTCPeerConnection(config); | |
| webrtc_id = Math.random().toString(36).substring(7); | |
| const timeoutId = setTimeout(() => { | |
| const toast = document.getElementById('error-toast'); | |
| toast.textContent = "Connection is taking longer than usual. Are you on a VPN?"; | |
| toast.className = 'toast warning'; | |
| toast.style.display = 'block'; | |
| // Hide warning after 5 seconds | |
| setTimeout(() => { | |
| toast.style.display = 'none'; | |
| }, 5000); | |
| }, 5000); | |
| try { | |
| const stream = await navigator.mediaDevices.getUserMedia({ audio: true }); | |
| stream.getTracks().forEach(track => peerConnection.addTrack(track, stream)); | |
| if (!audioContext || audioContext.state === 'closed') { | |
| audioContext = new AudioContext(); | |
| } | |
| if (source_input) { | |
| try { source_input.disconnect(); } catch (e) { console.warn("Error disconnecting previous input source:", e); } | |
| source_input = null; | |
| } | |
| source_input = audioContext.createMediaStreamSource(stream); | |
| analyser_input = audioContext.createAnalyser(); | |
| source_input.connect(analyser_input); | |
| analyser_input.fftSize = 64; | |
| dataArray_input = new Uint8Array(analyser_input.frequencyBinCount); | |
| updateAudioLevel(); | |
| peerConnection.addEventListener('connectionstatechange', () => { | |
| console.log('connectionstatechange', peerConnection.connectionState); | |
| if (peerConnection.connectionState === 'connected') { | |
| clearTimeout(timeoutId); | |
| const toast = document.getElementById('error-toast'); | |
| toast.style.display = 'none'; | |
| if (analyser_input) updateAudioLevel(); | |
| if (analyser) updateVisualization(); | |
| } else if (['disconnected', 'failed', 'closed'].includes(peerConnection.connectionState)) { | |
| // Explicitly stop animations if connection drops unexpectedly | |
| // Note: stopWebRTC() handles the normal stop case | |
| } | |
| updateButtonState(); | |
| }); | |
| peerConnection.onicecandidate = ({ candidate }) => { | |
| if (candidate) { | |
| console.debug("Sending ICE candidate", candidate); | |
| fetch('/webrtc/offer', { | |
| method: 'POST', | |
| headers: { 'Content-Type': 'application/json' }, | |
| body: JSON.stringify({ | |
| candidate: candidate.toJSON(), | |
| webrtc_id: webrtc_id, | |
| type: "ice-candidate", | |
| }) | |
| }) | |
| } | |
| }; | |
| peerConnection.addEventListener('track', (evt) => { | |
| if (evt.track.kind === 'audio' && audioOutput) { | |
| if (audioOutput.srcObject !== evt.streams[0]) { | |
| audioOutput.srcObject = evt.streams[0]; | |
| audioOutput.play().catch(e => console.error("Audio play failed:", e)); | |
| if (!audioContext || audioContext.state === 'closed') { | |
| console.warn("AudioContext not ready for output track analysis."); | |
| return; | |
| } | |
| if (source_output) { | |
| try { source_output.disconnect(); } catch (e) { console.warn("Error disconnecting previous output source:", e); } | |
| source_output = null; | |
| } | |
| source_output = audioContext.createMediaStreamSource(evt.streams[0]); | |
| analyser = audioContext.createAnalyser(); | |
| source_output.connect(analyser); | |
| analyser.fftSize = 2048; | |
| dataArray = new Uint8Array(analyser.frequencyBinCount); | |
| updateVisualization(); | |
| } | |
| } | |
| }); | |
| dataChannel = peerConnection.createDataChannel('text'); | |
| dataChannel.onmessage = (event) => { | |
| const eventJson = JSON.parse(event.data); | |
| if (eventJson.type === "error") { | |
| showError(eventJson.message); | |
| } else if (eventJson.type === "send_input") { | |
| fetch('/input_hook', { | |
| method: 'POST', | |
| headers: { | |
| 'Content-Type': 'application/json', | |
| }, | |
| body: JSON.stringify({ | |
| webrtc_id: webrtc_id, | |
| api_key: apiKeyInput.value, | |
| voice_name: voiceSelect.value | |
| }) | |
| }); | |
| } | |
| }; | |
| const offer = await peerConnection.createOffer(); | |
| await peerConnection.setLocalDescription(offer); | |
| const response = await fetch('/webrtc/offer', { | |
| method: 'POST', | |
| headers: { 'Content-Type': 'application/json' }, | |
| body: JSON.stringify({ | |
| sdp: peerConnection.localDescription.sdp, | |
| type: peerConnection.localDescription.type, | |
| webrtc_id: webrtc_id, | |
| }) | |
| }); | |
| const serverResponse = await response.json(); | |
| if (serverResponse.status === 'failed') { | |
| showError(serverResponse.meta.error === 'concurrency_limit_reached' | |
| ? `Too many connections. Maximum limit is ${serverResponse.meta.limit}` | |
| : serverResponse.meta.error); | |
| stopWebRTC(); | |
| startButton.textContent = 'Start Recording'; | |
| return; | |
| } | |
| await peerConnection.setRemoteDescription(serverResponse); | |
| } catch (err) { | |
| clearTimeout(timeoutId); | |
| console.error('Error setting up WebRTC:', err); | |
| showError('Failed to establish connection. Please try again.'); | |
| stopWebRTC(); | |
| startButton.textContent = 'Start Recording'; | |
| } | |
| } | |
| function updateVisualization() { | |
| if (!analyser || !peerConnection || !['connected', 'connecting'].includes(peerConnection.connectionState)) { | |
| const bars = document.querySelectorAll('.box'); | |
| bars.forEach(bar => bar.style.transform = 'scaleY(0.1)'); | |
| return; | |
| } | |
| analyser.getByteFrequencyData(dataArray); | |
| const bars = document.querySelectorAll('.box'); | |
| for (let i = 0; i < bars.length; i++) { | |
| const barHeight = (dataArray[i] / 255) * 2; | |
| bars[i].style.transform = `scaleY(${Math.max(0.1, barHeight)})`; | |
| } | |
| requestAnimationFrame(updateVisualization); | |
| } | |
| function updateAudioLevel() { | |
| if (!analyser_input || !peerConnection || !['connected', 'connecting'].includes(peerConnection.connectionState)) { | |
| const pulseCircle = document.querySelector('.pulse-circle'); | |
| if (pulseCircle) { | |
| pulseCircle.style.setProperty('--audio-level', 1); | |
| } | |
| return; | |
| } | |
| analyser_input.getByteFrequencyData(dataArray_input); | |
| const average = Array.from(dataArray_input).reduce((a, b) => a + b, 0) / dataArray_input.length; | |
| const audioLevel = average / 255; | |
| const pulseCircle = document.querySelector('.pulse-circle'); | |
| if (pulseCircle) { | |
| pulseCircle.style.setProperty('--audio-level', 1 + audioLevel); | |
| } | |
| requestAnimationFrame(updateAudioLevel); | |
| } | |
| function stopWebRTC() { | |
| console.log("Running stopWebRTC"); | |
| if (peerConnection) { | |
| peerConnection.getSenders().forEach(sender => { | |
| if (sender.track) { | |
| sender.track.stop(); | |
| } | |
| }); | |
| peerConnection.ontrack = null; | |
| peerConnection.onicegatheringstatechange = null; | |
| peerConnection.onconnectionstatechange = null; | |
| if (dataChannel) { | |
| dataChannel.onmessage = null; | |
| try { dataChannel.close(); } catch (e) { console.warn("Error closing data channel:", e); } | |
| dataChannel = null; | |
| } | |
| try { peerConnection.close(); } catch (e) { console.warn("Error closing peer connection:", e); } | |
| peerConnection = null; | |
| } | |
| if (audioOutput) { | |
| audioOutput.pause(); | |
| audioOutput.srcObject = null; | |
| } | |
| if (source_input) { | |
| try { source_input.disconnect(); } catch (e) { console.warn("Error disconnecting input source:", e); } | |
| source_input = null; | |
| } | |
| if (source_output) { | |
| try { source_output.disconnect(); } catch (e) { console.warn("Error disconnecting output source:", e); } | |
| source_output = null; | |
| } | |
| if (audioContext && audioContext.state !== 'closed') { | |
| audioContext.close().then(() => { | |
| console.log("AudioContext closed successfully."); | |
| audioContext = null; | |
| }).catch(e => { | |
| console.error("Error closing AudioContext:", e); | |
| audioContext = null; | |
| }); | |
| } else { | |
| audioContext = null; | |
| } | |
| analyser_input = null; | |
| dataArray_input = null; | |
| analyser = null; | |
| dataArray = null; | |
| isMuted = false; | |
| isRecording = false; | |
| updateButtonState(); | |
| const bars = document.querySelectorAll('.box'); | |
| bars.forEach(bar => bar.style.transform = 'scaleY(0.1)'); | |
| const pulseCircle = document.querySelector('.pulse-circle'); | |
| if (pulseCircle) { | |
| pulseCircle.style.setProperty('--audio-level', 1); | |
| } | |
| } | |
| startButton.addEventListener('click', (event) => { | |
| if (event.target.closest('.mute-toggle')) { | |
| return; | |
| } | |
| if (peerConnection && peerConnection.connectionState === 'connected') { | |
| console.log("Stop button clicked"); | |
| stopWebRTC(); | |
| } else if (!peerConnection || ['new', 'closed', 'failed', 'disconnected'].includes(peerConnection.connectionState)) { | |
| console.log("Start button clicked"); | |
| if (!apiKeyInput.value) { | |
| showError("Please enter your API Key."); | |
| return; | |
| } | |
| setupWebRTC(); | |
| isRecording = true; | |
| updateButtonState(); | |
| } | |
| }); | |
| updateButtonState(); | |
| </script> | |
| </body> | |
| </html> |