Created an example for testing the bot and try to create freezing conditions.
This commit is contained in:
Filipi Fuchter
328
examples/freeze-test/client/src/app.ts
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328
examples/freeze-test/client/src/app.ts
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/**
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* Copyright (c) 2024–2025, Daily
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*
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* SPDX-License-Identifier: BSD 2-Clause License
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*/
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/**
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* RTVI Client Implementation
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*
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* This client connects to an RTVI-compatible bot server using WebSocket.
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*
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* Requirements:
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* - A running RTVI bot server (defaults to http://localhost:7860)
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*/
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import {
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RTVIClient,
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RTVIClientOptions,
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RTVIEvent,
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} from '@pipecat-ai/client-js';
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import {
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ProtobufFrameSerializer,
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WebSocketTransport
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} from "@pipecat-ai/websocket-transport";
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class RecordingSerializer extends ProtobufFrameSerializer {
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private lastTimestamp: number | null = null;
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private recordingAudioToSend: boolean = false;
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private _recordedAudio: { data: ArrayBuffer; delay: number }[] = [];
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public startRecording() {
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this.recordingAudioToSend = true;
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this._recordedAudio = [];
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this.lastTimestamp = null;
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}
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public stopRecording() {
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this.recordingAudioToSend = false;
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}
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// @ts-ignore
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serializeAudio(data: ArrayBuffer, sampleRate: number, numChannels: number): Uint8Array | null {
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if (this.recordingAudioToSend) {
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const now = Date.now();
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// Compute delay since last packet
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const delay = this.lastTimestamp ? now - this.lastTimestamp : 0;
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this.lastTimestamp = now;
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// Save audio chunk and delay
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this._recordedAudio.push({ data, delay });
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return null;
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} else {
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return super.serializeAudio(data, sampleRate, numChannels);
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}
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}
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public get recordedAudio() {
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return this._recordedAudio
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}
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}
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class WebsocketClientApp {
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private ENABLE_RECORDING_MODE = false
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private RECORDING_TIME_MS = 10000
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private rtviClient: RTVIClient | null = null;
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private connectBtn: HTMLButtonElement | null = null;
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private disconnectBtn: HTMLButtonElement | null = null;
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private statusSpan: HTMLElement | null = null;
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private debugLog: HTMLElement | null = null;
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private botAudio: HTMLAudioElement;
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private declare websocketTransport: WebSocketTransport;
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private sendRecordedAudio: boolean = false
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private declare recordingSerializer: RecordingSerializer;
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private playBtn: HTMLButtonElement | null = null;
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private stopBtn: HTMLButtonElement | null = null;
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constructor() {
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this.botAudio = document.createElement('audio');
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this.botAudio.autoplay = true;
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//this.botAudio.playsInline = true;
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document.body.appendChild(this.botAudio);
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this.setupDOMElements();
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this.setupEventListeners();
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}
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/**
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* Set up references to DOM elements and create necessary media elements
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*/
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private setupDOMElements(): void {
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this.connectBtn = document.getElementById('connect-btn') as HTMLButtonElement;
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this.disconnectBtn = document.getElementById('disconnect-btn') as HTMLButtonElement;
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this.statusSpan = document.getElementById('connection-status');
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this.debugLog = document.getElementById('debug-log');
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this.playBtn = document.getElementById('play-btn') as HTMLButtonElement;
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this.stopBtn = document.getElementById('stop-btn') as HTMLButtonElement;
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}
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/**
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* Set up event listeners for connect/disconnect buttons
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*/
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private setupEventListeners(): void {
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this.connectBtn?.addEventListener('click', () => this.connect());
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this.disconnectBtn?.addEventListener('click', () => this.disconnect());
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this.playBtn?.addEventListener('click', () => this.startSendingRecordedAudio());
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this.stopBtn?.addEventListener('click', () => this.stopSendingRecordedAudio());
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}
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/**
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* Add a timestamped message to the debug log
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*/
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private log(message: string): void {
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if (!this.debugLog) return;
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const entry = document.createElement('div');
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entry.textContent = `${new Date().toISOString()} - ${message}`;
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if (message.startsWith('User: ')) {
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entry.style.color = '#2196F3';
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} else if (message.startsWith('Bot: ')) {
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entry.style.color = '#4CAF50';
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}
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this.debugLog.appendChild(entry);
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this.debugLog.scrollTop = this.debugLog.scrollHeight;
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console.log(message);
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}
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/**
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* Update the connection status display
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*/
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private updateStatus(status: string): void {
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if (this.statusSpan) {
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this.statusSpan.textContent = status;
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}
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this.log(`Status: ${status}`);
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}
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/**
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* Check for available media tracks and set them up if present
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* This is called when the bot is ready or when the transport state changes to ready
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*/
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setupMediaTracks() {
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if (!this.rtviClient) return;
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const tracks = this.rtviClient.tracks();
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if (tracks.bot?.audio) {
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this.setupAudioTrack(tracks.bot.audio);
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}
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}
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/**
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* Set up listeners for track events (start/stop)
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* This handles new tracks being added during the session
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*/
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setupTrackListeners() {
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if (!this.rtviClient) return;
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// Listen for new tracks starting
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this.rtviClient.on(RTVIEvent.TrackStarted, (track, participant) => {
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// Only handle non-local (bot) tracks
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if (!participant?.local && track.kind === 'audio') {
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this.setupAudioTrack(track);
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}
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});
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// Listen for tracks stopping
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this.rtviClient.on(RTVIEvent.TrackStopped, (track, participant) => {
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this.log(`Track stopped: ${track.kind} from ${participant?.name || 'unknown'}`);
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});
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}
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/**
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* Set up an audio track for playback
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* Handles both initial setup and track updates
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*/
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private setupAudioTrack(track: MediaStreamTrack): void {
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this.log('Setting up audio track');
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if (this.botAudio.srcObject && "getAudioTracks" in this.botAudio.srcObject) {
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const oldTrack = this.botAudio.srcObject.getAudioTracks()[0];
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if (oldTrack?.id === track.id) return;
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}
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this.botAudio.srcObject = new MediaStream([track]);
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}
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/**
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* Initialize and connect to the bot
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* This sets up the RTVI client, initializes devices, and establishes the connection
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*/
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public async connect(): Promise<void> {
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try {
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const startTime = Date.now();
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this.recordingSerializer = new RecordingSerializer()
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const transport = this.ENABLE_RECORDING_MODE ? new WebSocketTransport({serializer: this.recordingSerializer}) : new WebSocketTransport();
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this.websocketTransport = transport
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const RTVIConfig: RTVIClientOptions = {
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transport,
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params: {
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// The baseURL and endpoint of your bot server that the client will connect to
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baseUrl: 'http://localhost:7860',
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endpoints: { connect: '/connect' },
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},
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enableMic: true,
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enableCam: false,
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callbacks: {
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onConnected: () => {
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this.updateStatus('Connected');
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if (this.connectBtn) this.connectBtn.disabled = true;
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if (this.disconnectBtn) this.disconnectBtn.disabled = false;
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},
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onDisconnected: () => {
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this.updateStatus('Disconnected');
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if (this.connectBtn) this.connectBtn.disabled = false;
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if (this.disconnectBtn) this.disconnectBtn.disabled = true;
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this.log('Client disconnected');
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},
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onBotReady: (data) => {
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this.log(`Bot ready: ${JSON.stringify(data)}`);
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this.setupMediaTracks();
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},
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onUserTranscript: (data) => {
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if (data.final) {
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this.log(`User: ${data.text}`);
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}
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},
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onBotTranscript: (data) => this.log(`Bot: ${data.text}`),
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onMessageError: (error) => console.error('Message error:', error),
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onError: (error) => console.error('Error:', error),
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},
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}
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this.rtviClient = new RTVIClient(RTVIConfig);
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this.setupTrackListeners();
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this.log('Initializing devices...');
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await this.rtviClient.initDevices();
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this.log('Connecting to bot...');
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await this.rtviClient.connect();
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const timeTaken = Date.now() - startTime;
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this.log(`Connection complete, timeTaken: ${timeTaken}`);
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if (this.ENABLE_RECORDING_MODE) {
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this.log(`Starting to recording the next ${(this.RECORDING_TIME_MS/1000)}s of audio`);
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this.recordingSerializer.startRecording()
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await this.sleep(this.RECORDING_TIME_MS)
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this.recordingSerializer.stopRecording()
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this.log("Recording stopped");
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this.rtviClient.enableMic(false)
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this.startSendingRecordedAudio()
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}
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} catch (error) {
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this.log(`Error connecting: ${(error as Error).message}`);
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this.updateStatus('Error');
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// Clean up if there's an error
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if (this.rtviClient) {
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try {
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await this.rtviClient.disconnect();
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} catch (disconnectError) {
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this.log(`Error during disconnect: ${disconnectError}`);
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}
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}
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}
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}
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/**
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* Disconnect from the bot and clean up media resources
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*/
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public async disconnect(): Promise<void> {
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if (this.rtviClient) {
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try {
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this.stopSendingRecordedAudio()
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await this.rtviClient.disconnect();
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this.rtviClient = null;
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if (this.botAudio.srcObject && "getAudioTracks" in this.botAudio.srcObject) {
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this.botAudio.srcObject.getAudioTracks().forEach((track) => track.stop());
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this.botAudio.srcObject = null;
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}
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} catch (error) {
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this.log(`Error disconnecting: ${(error as Error).message}`);
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}
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}
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}
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private startSendingRecordedAudio() {
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this.sendRecordedAudio = true
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if (this.playBtn) this.playBtn.disabled = true;
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if (this.stopBtn) this.stopBtn.disabled = false;
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void this.replayAudio()
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}
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private stopSendingRecordedAudio() {
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if (this.stopBtn) this.stopBtn.disabled = true;
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if (this.playBtn) this.playBtn.disabled = false;
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this.sendRecordedAudio = false
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}
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private async replayAudio() {
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if (this.sendRecordedAudio) {
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this.log("Sending recorded audio")
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for (const chunk of this.recordingSerializer.recordedAudio) {
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await this.sleep(chunk.delay);
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this.websocketTransport.handleUserAudioStream(chunk.data);
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}
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const randomDelay = 1000 + Math.random() * (10000 - 500);
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await this.sleep(randomDelay);
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void this.replayAudio()
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}
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}
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private sleep(ms: number): Promise<void> {
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return new Promise(resolve => setTimeout(resolve, ms));
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}
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}
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declare global {
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interface Window {
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WebsocketClientApp: typeof WebsocketClientApp;
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}
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}
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window.addEventListener('DOMContentLoaded', () => {
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window.WebsocketClientApp = WebsocketClientApp;
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new WebsocketClientApp();
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});
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98
examples/freeze-test/client/src/style.css
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98
examples/freeze-test/client/src/style.css
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body {
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margin: 0;
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padding: 20px;
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font-family: Arial, sans-serif;
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background-color: #f0f0f0;
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}
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.container {
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max-width: 1200px;
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margin: 0 auto;
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}
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.status-bar {
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display: flex;
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justify-content: space-between;
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align-items: center;
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padding: 10px;
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background-color: #fff;
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border-radius: 8px;
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margin-bottom: 20px;
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}
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.controls button {
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padding: 8px 16px;
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margin-left: 10px;
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border: none;
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border-radius: 4px;
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cursor: pointer;
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}
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#connect-btn {
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background-color: #4caf50;
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color: white;
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}
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#disconnect-btn {
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background-color: #f44336;
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color: white;
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}
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button:disabled {
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opacity: 0.5;
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cursor: not-allowed;
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}
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.main-content {
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background-color: #fff;
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border-radius: 8px;
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padding: 20px;
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margin-bottom: 20px;
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}
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.bot-container {
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display: flex;
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flex-direction: column;
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align-items: center;
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}
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#bot-video-container {
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width: 640px;
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height: 360px;
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background-color: #e0e0e0;
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border-radius: 8px;
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margin: 20px auto;
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overflow: hidden;
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display: flex;
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align-items: center;
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justify-content: center;
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}
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#bot-video-container video {
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width: 100%;
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height: 100%;
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object-fit: cover;
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}
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.debug-panel {
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background-color: #fff;
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border-radius: 8px;
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padding: 20px;
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}
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.debug-panel h3 {
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margin: 0 0 10px 0;
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font-size: 16px;
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font-weight: bold;
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}
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#debug-log {
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height: 500px;
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overflow-y: auto;
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background-color: #f8f8f8;
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padding: 10px;
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border-radius: 4px;
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font-family: monospace;
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font-size: 12px;
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line-height: 1.4;
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}
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