Implement audio calls

This commit is contained in:
2025-09-21 19:09:39 +03:00
Unverified
parent 27902cf092
commit a853164b50
20 changed files with 1265 additions and 12 deletions
+115
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@@ -0,0 +1,115 @@
import type { WebSocketMessage, CallSignalingData, CallInvite } from "@/core/types";
import * as WebRTC from "./webrtc";
export interface CallState {
receiveCall: (userId: number, username: string) => void;
endCall: () => void;
}
export class CallSignalingHandler {
private getState: () => CallState;
constructor(getState: () => CallState) {
this.getState = getState;
}
handleWebSocketMessage(message: WebSocketMessage<CallSignalingData>) {
if (message.type !== "call_signaling") {
return;
}
const { data } = message;
if (!data) {
console.warn("Received call_signaling message with no data:", message);
return;
}
console.log("Received signaling message:", data.type, "from user", data.fromUserId, "full data:", data);
switch (data.type) {
case "call_invite":
this.handleCallInvite(data as CallInvite);
break;
case "call_accept":
this.handleCallAccept(data);
break;
case "call_reject":
this.handleCallReject(data);
break;
case "call_offer":
this.handleCallOffer(data);
break;
case "call_answer":
this.handleCallAnswer(data);
break;
case "call_ice_candidate":
this.handleIceCandidate(data);
break;
case "call_end":
this.handleCallEnd(data);
break;
}
}
private async handleCallInvite(data: CallInvite) {
const { fromUserId, fromUsername } = data;
const state = this.getState();
// Show incoming call UI
state.receiveCall(fromUserId, fromUsername);
// Handle incoming call in WebRTC service
await WebRTC.handleIncomingCall(fromUserId, fromUsername);
}
private async handleCallAccept(data: any) {
const { fromUserId } = data;
// Initiator should create and send offer now
try {
await WebRTC.onRemoteAccepted(fromUserId);
} catch (error) {
console.error("Failed to proceed after accept:", error);
}
}
private handleCallReject(data: any) {
const state = this.getState();
const { fromUserId } = data;
// Clean up WebRTC connection first
if (fromUserId) {
WebRTC.cleanupCall(fromUserId);
}
// End the call
state.endCall();
}
private async handleCallOffer(data: any) {
const { fromUserId, data: offer } = data;
await WebRTC.handleCallOffer(fromUserId, offer);
}
private async handleCallAnswer(data: any) {
const { fromUserId, data: answer } = data;
await WebRTC.handleCallAnswer(fromUserId, answer);
}
private async handleIceCandidate(data: any) {
const { fromUserId, data: candidate } = data;
await WebRTC.handleIceCandidate(fromUserId, candidate);
}
private handleCallEnd(data: any) {
const state = this.getState();
const { fromUserId } = data;
// Clean up WebRTC connection first
if (fromUserId) {
WebRTC.cleanupCall(fromUserId);
}
// End the call
state.endCall();
}
}
+472
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@@ -0,0 +1,472 @@
import { getAuthHeaders } from "@/core/api/authApi";
import type { IceServersResponse } from "@/core/types";
import { request } from "@/core/websocket";
export interface CallSignalingMessage {
type: "call_offer" | "call_answer" | "call_ice_candidate" | "call_end" | "call_invite" | "call_accept" | "call_reject";
fromUserId: number;
toUserId: number;
data?: any;
}
export interface WebRTCCall {
peerConnection: RTCPeerConnection;
localStream: MediaStream | null;
remoteStream: MediaStream | null;
isInitiator: boolean;
remoteUserId: number;
remoteUsername: string;
isEnding?: boolean;
isMuted?: boolean;
}
// Global state
export let authToken: string | null = null;
export let onCallStateChange: ((userId: number, state: string) => void) | null = null;
export let onRemoteStream: ((userId: number, stream: MediaStream) => void) | null = null;
const calls: Map<number, WebRTCCall> = new Map();
export function setAuthToken(token: string) {
authToken = token;
}
export function setCallStateChangeHandler(handler: (userId: number, state: string) => void) {
onCallStateChange = handler;
}
export function setRemoteStreamHandler(handler: (userId: number, stream: MediaStream) => void) {
onRemoteStream = handler;
}
async function sendSignalingMessage(message: CallSignalingMessage) {
if (!authToken) {
throw new Error("No auth token available");
}
console.log("Sending signaling message:", message.type, "to user", message.toUserId);
await request({
type: "call_signaling",
credentials: {
scheme: "Bearer",
credentials: authToken
},
data: message
});
}
async function getIceServers(): Promise<RTCIceServer[]> {
const defaultIceServers = [{ urls: "stun:fromchat.ru:3478" }];
if (!authToken) {
console.warn("No auth token available for ICE servers");
return defaultIceServers;
}
try {
const response = await fetch("/api/webrtc/ice", {
headers: getAuthHeaders(authToken)
});
if (response.ok) {
const data = await response.json() as IceServersResponse;
console.log("Received ICE servers:", data.iceServers);
return data.iceServers || [];
} else {
console.warn("Failed to fetch ICE servers:", response.status, response.statusText);
}
} catch (error) {
console.warn("Failed to fetch ICE servers:", error);
}
// Fallback to STUN only if backend fails
return defaultIceServers;
}
async function createPeerConnection(userId: number): Promise<RTCPeerConnection> {
const iceServers = await getIceServers();
const peerConnection = new RTCPeerConnection({
iceServers
});
const call: WebRTCCall = {
peerConnection,
localStream: null,
remoteStream: null,
isInitiator: false,
remoteUserId: userId,
remoteUsername: "",
isMuted: false
};
calls.set(userId, call);
peerConnection.addEventListener("icegatheringstatechange", () => {
console.log("ICE gathering state changed:", peerConnection.iceGatheringState);
});
// Add ICE candidate event listener for debugging and sending
peerConnection.addEventListener("icecandidate", async (event) => {
if (event.candidate) {
console.log("Local ICE candidate:", event.candidate.candidate);
// Send ICE candidate to remote peer
try {
await sendSignalingMessage({
type: "call_ice_candidate",
fromUserId: 0, // Will be set by server
toUserId: userId,
data: {
candidate: event.candidate.candidate,
sdpMLineIndex: event.candidate.sdpMLineIndex,
sdpMid: event.candidate.sdpMid
}
});
} catch (error) {
console.error("Failed to send ICE candidate:", error);
}
} else {
console.log("ICE gathering complete");
}
});
peerConnection.addEventListener("iceconnectionstatechange", () => {
console.log("ICE connection state changed:", peerConnection.iceConnectionState);
});
peerConnection.addEventListener("signalingstatechange", () => {
// Signaling state changed
});
// Handle remote stream
peerConnection.addEventListener("track", (event) => {
const [remoteStream] = event.streams;
const call = calls.get(userId);
if (call) {
call.remoteStream = remoteStream;
if (onRemoteStream) {
onRemoteStream(userId, remoteStream);
}
}
});
// Handle connection state changes
peerConnection.addEventListener("connectionstatechange", () => {
console.log("WebRTC connection state changed:", peerConnection.connectionState);
const call = calls.get(userId);
if (call) {
if (onCallStateChange) {
onCallStateChange(userId, peerConnection.connectionState);
}
// Clean up if connection failed or closed
if (peerConnection.connectionState === "failed" ||
peerConnection.connectionState === "closed" ||
peerConnection.connectionState === "disconnected") {
// Only send end call message if we're not already cleaning up
const call = calls.get(userId);
if (call && !call.isEnding) {
call.isEnding = true;
endCall(userId);
}
}
}
});
return peerConnection;
}
export async function initiateCall(userId: number, username: string): Promise<boolean> {
try {
// Get user media
const localStream = await navigator.mediaDevices.getUserMedia({
audio: true,
video: false
});
// Create peer connection
await createPeerConnection(userId);
const call = calls.get(userId);
if (!call) return false;
call.localStream = localStream;
call.remoteUsername = username;
call.isInitiator = true;
// Add tracks to peer connection
localStream.getTracks().forEach(track => call.peerConnection.addTrack(track, localStream));
// Send call invite
await sendSignalingMessage({
type: "call_invite",
fromUserId: 0, // Will be set by server
toUserId: userId,
data: { fromUsername: username }
});
return true;
} catch (error) {
console.error("Failed to initiate call:", error);
cleanupCall(userId);
return false;
}
}
export async function acceptCall(userId: number): Promise<boolean> {
try {
let call = calls.get(userId);
if (!call) {
// Create call object if it doesn't exist (for race conditions)
await createPeerConnection(userId);
call = calls.get(userId);
if (!call) return false;
}
// Get user media and attach
const localStream = await navigator.mediaDevices.getUserMedia({ audio: true, video: false });
call.localStream = localStream;
localStream.getTracks().forEach(track => call!.peerConnection.addTrack(track, localStream));
// Notify initiator that callee accepted; initiator will generate offer
await sendSignalingMessage({
type: "call_accept",
fromUserId: 0, // Will be set by server
toUserId: userId,
data: {}
});
return true;
} catch (error) {
console.error("Failed to accept call:", error);
cleanupCall(userId);
return false;
}
}
export async function rejectCall(userId: number): Promise<void> {
await sendSignalingMessage({
type: "call_reject",
fromUserId: 0, // Will be set by server
toUserId: userId,
data: {}
});
cleanupCall(userId);
}
export async function endCall(userId: number): Promise<void> {
const call = calls.get(userId);
if (call && !call.isEnding) {
call.isEnding = true;
// Send call end message
await sendSignalingMessage({
type: "call_end",
fromUserId: 0, // Will be set by server
toUserId: userId,
data: {}
});
cleanupCall(userId);
}
}
export async function handleIncomingCall(userId: number, username: string): Promise<void> {
try {
// Create peer connection for incoming call
await createPeerConnection(userId);
const call = calls.get(userId);
if (!call) return;
call.remoteUsername = username;
call.isInitiator = false;
} catch (error) {
console.error("Failed to handle incoming call:", error);
cleanupCall(userId);
}
}
export async function onRemoteAccepted(userId: number): Promise<void> {
const call = calls.get(userId);
if (!call) {
throw new Error("No call found to accept");
}
try {
// Create offer
const offer = await call.peerConnection.createOffer();
await call.peerConnection.setLocalDescription(offer);
// Send offer to remote peer
await sendSignalingMessage({
type: "call_offer",
fromUserId: 0, // Will be set by server
toUserId: userId,
data: offer
});
} catch (error) {
console.error("Failed to create offer:", error);
throw error;
}
}
export async function handleCallOffer(userId: number, offer: RTCSessionDescriptionInit): Promise<void> {
const call = calls.get(userId);
if (!call) {
throw new Error("No call found for offer");
}
try {
// Set remote description
await call.peerConnection.setRemoteDescription(offer);
// Create answer
const answer = await call.peerConnection.createAnswer();
await call.peerConnection.setLocalDescription(answer);
// Send answer to remote peer
await sendSignalingMessage({
type: "call_answer",
fromUserId: 0, // Will be set by server
toUserId: userId,
data: answer
});
} catch (error) {
console.error("Failed to handle offer:", error);
throw error;
}
}
export async function handleCallAnswer(userId: number, answer: RTCSessionDescriptionInit): Promise<void> {
const call = calls.get(userId);
if (!call) {
throw new Error("No call found for answer");
}
try {
await call.peerConnection.setRemoteDescription(answer);
} catch (error) {
console.error("Failed to handle answer:", error);
throw error;
}
}
export async function handleIceCandidate(userId: number, candidate: RTCIceCandidateInit): Promise<void> {
const call = calls.get(userId);
if (!call) {
console.warn("No call found for ICE candidate from user", userId);
return;
}
try {
console.log("Adding ICE candidate from user", userId, ":", candidate);
await call.peerConnection.addIceCandidate(candidate);
} catch (error) {
console.error("Failed to add ICE candidate:", error);
}
}
export function toggleMute(userId: number): boolean {
const call = calls.get(userId);
if (!call || !call.localStream) {
return false;
}
if (!call.isMuted) {
// Mute: Stop the track completely (no green dot)
const audioTrack = call.localStream.getAudioTracks()[0];
if (audioTrack) {
audioTrack.stop();
call.localStream.removeTrack(audioTrack);
}
// Create a silent audio track using Web Audio API
const audioContext = new (window.AudioContext || (window as any).webkitAudioContext)();
const oscillator = audioContext.createOscillator();
const gainNode = audioContext.createGain();
// Set gain to 0 (silent)
gainNode.gain.setValueAtTime(0, audioContext.currentTime);
// Connect nodes
oscillator.connect(gainNode);
// Create a MediaStreamDestination to get a MediaStream
const destination = audioContext.createMediaStreamDestination();
gainNode.connect(destination);
// Start the oscillator (but it's silent due to gain = 0)
oscillator.start();
// Add the silent track to maintain WebRTC connection
const silentTrack = destination.stream.getAudioTracks()[0];
if (silentTrack) {
call.localStream.addTrack(silentTrack);
}
call.isMuted = true;
return true; // Muted
} else {
// Unmute: Re-enable microphone by getting new audio stream
navigator.mediaDevices.getUserMedia({ audio: true, video: false })
.then(newStream => {
// Remove any existing audio tracks from the stream
call.localStream!.getAudioTracks().forEach(track => track.stop());
// Get the new active track
const newAudioTrack = newStream.getAudioTracks()[0];
// Replace the track in the peer connection
const sender = call.peerConnection.getSenders().find(s =>
s.track && s.track.kind === 'audio'
);
if (sender) {
// Replace the track in the existing sender
sender.replaceTrack(newAudioTrack);
} else {
// Add the track to the peer connection if no sender exists
call.peerConnection.addTrack(newAudioTrack, call.localStream!);
}
// Add the track to the local stream
call.localStream!.addTrack(newAudioTrack);
call.isMuted = false;
})
.catch(error => {
console.error("Failed to re-enable microphone:", error);
});
return false; // Unmuted
}
}
export function getCall(userId: number): WebRTCCall | undefined {
return calls.get(userId);
}
export function cleanupCall(userId: number): void {
const call = calls.get(userId);
if (call) {
// Close peer connection
if (call.peerConnection) {
call.peerConnection.close();
}
// Stop local stream
if (call.localStream) {
call.localStream.getTracks().forEach(track => track.stop());
}
calls.delete(userId);
}
}
export function cleanup(): void {
// Clean up all calls
for (const userId of calls.keys()) {
cleanupCall(userId);
}
calls.clear();
}
+19
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@@ -247,6 +247,10 @@ export interface DmEncryptedJSON {
}
}
export interface IceServersResponse {
iceServers: RTCIceServer[];
}
// ---------------
// WebSocket types
// ---------------
@@ -428,4 +432,19 @@ export interface EncryptedMessageJson {
export interface DialogProps {
isOpen: boolean;
onOpenChange: (value: boolean) => void;
}
// Call types
export interface CallInvite extends CallSignalingData {
type: "call_invite";
fromUserId: number;
fromUsername: string;
timestamp: string;
}
export interface CallSignalingData {
type: "call_offer" | "call_answer" | "call_ice_candidate" | "call_end" | "call_invite" | "call_accept" | "call_reject";
fromUserId: number;
toUserId: number;
data?: any;
}
+19
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@@ -8,6 +8,7 @@
import { API_WS_BASE_URL } from "./config";
import type { WebSocketMessage } from "./types";
import { delay } from "@/utils/utils";
import { CallSignalingHandler } from "@/core/calls/signaling";
/**
* Creates a new WebSocket connection to the chat server
@@ -35,6 +36,11 @@ export let websocket: WebSocket = create();
*/
let globalMessageHandler: ((response: WebSocketMessage<any>) => void) | null = null;
/**
* Call signaling handler
*/
let callSignalingHandler: CallSignalingHandler | null = null;
/**
* Set the global WebSocket message handler
* @param handler - Function to handle WebSocket messages
@@ -43,6 +49,14 @@ export function setGlobalMessageHandler(handler: ((response: WebSocketMessage<an
globalMessageHandler = handler;
}
/**
* Set the call signaling handler
* @param handler - Call signaling handler instance
*/
export function setCallSignalingHandler(handler: CallSignalingHandler | null): void {
callSignalingHandler = handler;
}
export function request<Request, Response = any>(payload: WebSocketMessage<Request>): Promise<WebSocketMessage<Response>> {
console.log("WebSocket request:", payload);
return new Promise((resolve, reject) => {
@@ -97,6 +111,11 @@ websocket.addEventListener("message", (e) => {
try {
const response: WebSocketMessage<any> = JSON.parse(e.data);
// Handle call signaling messages
if (callSignalingHandler && response.type === "call_signaling") {
callSignalingHandler.handleWebSocketMessage(response);
}
// Route message to global handler if set
if (globalMessageHandler) {
globalMessageHandler(response);