работаем бля работаем

server/plugins/socket/chat/index.ts

@@ -0,0 +1,10 @@
+import type { FastifyInstance } from 'fastify'
+import type { MessageSelect } from '../../../prisma/generated-client/models.ts'
+
+export default async function (fastify: FastifyInstance) {
+  const { io, bus } = fastify
+
+  bus.on('chat:new-message', async (message: MessageSelect) => {
+    io.emit('chat:new-message', message)
+  })
+}

server/plugins/socket/types.ts

@@ -0,0 +1,136 @@
+import type { types } from 'mediasoup'
+import type { Server, Socket } from 'socket.io'
+import type { Channel, User } from '../../prisma/generated-client/client.ts'
+
+export interface SerializedClient {
+  socketId: string
+  userId: User['id']
+  channelId: Channel['id']
+  inputMuted: boolean
+  outputMuted: boolean
+  streaming: boolean
+}
+
+export interface ProducerAppData extends types.AppData {
+  source: 'mic-video' | 'share'
+}
+
+export interface ErrorCallbackResult {
+  error: string
+}
+
+export interface SuccessCallbackResult {
+  ok: true
+}
+
+export type EventCallback<T = SuccessCallbackResult> = (result: T | ErrorCallbackResult) => void
+
+export interface ClientToServerEvents {
+  'join-channel': (
+    options: { channelId: string },
+    cb?: EventCallback
+  ) => void
+  'create-transport': (
+    options: {
+      producing: boolean
+      consuming: boolean
+    },
+    cb: EventCallback<Pick<types.WebRtcTransport, 'id' | 'iceParameters' | 'iceCandidates' | 'dtlsParameters'>>
+  ) => void
+  'connect-transport': (
+    options: {
+      transportId: types.WebRtcTransport['id']
+      dtlsParameters: types.WebRtcTransport['dtlsParameters']
+    },
+    cb: EventCallback
+  ) => void
+  'produce': (
+    options: {
+      transportId: types.WebRtcTransport['id']
+      kind: types.MediaKind
+      rtpParameters: types.RtpParameters
+      appData: { source: 'share' | string }
+    },
+    cb: EventCallback<{ id: types.Producer['id'] }>
+  ) => void
+  'close-producer': (
+    options: {
+      producerId: types.Producer['id']
+    },
+    cb: EventCallback
+  ) => void
+  'pause-producer': (
+    options: {
+      producerId: types.Producer['id']
+    },
+    cb: EventCallback
+  ) => void
+  'resume-producer': (
+    options: {
+      producerId: types.Producer['id']
+    },
+    cb: EventCallback
+  ) => void
+  'pause-consumer': (
+    options: {
+      consumerId: types.Consumer['id']
+    },
+    cb: EventCallback
+  ) => void
+  'resume-consumer': (
+    options: {
+      consumerId: types.Consumer['id']
+    },
+    cb: EventCallback
+  ) => void
+  'update-client': (
+    options: Partial<Pick<SerializedClient, 'inputMuted' | 'outputMuted'>>,
+    cb: EventCallback<SerializedClient>
+  ) => void
+}
+
+export interface ServerToClientEvents {
+  'initialized': (arg: {
+    rtpCapabilities: types.RtpCapabilities
+    channelId: string
+    clients: SerializedClient[]
+  }) => void
+  'new-client': (arg: SerializedClient) => void
+  'client-updated': (arg: SerializedClient) => void
+  'client-switched-channel': (arg: SerializedClient) => void
+  'client-disconnected': (arg: string) => void
+  'producers': (arg: {
+    producerId: types.Producer['id']
+    kind: types.MediaKind
+  }[]) => void
+  'new-consumer': (
+    arg: {
+      socketId: string
+      producerId: types.Producer['id']
+      id: types.Consumer['id']
+      kind: types.MediaKind
+      rtpParameters: types.RtpParameters
+      type: types.ConsumerType
+      appData: types.Producer['appData']
+      producerPaused: types.Consumer['producerPaused']
+    },
+    cb: EventCallback
+  ) => void
+  'consumer-closed': (arg: { consumerId: string }) => void
+  'consumer-paused': (arg: { consumerId: string }) => void
+  'consumer-resumed': (arg: { consumerId: string }) => void
+  'speaking-clients': (arg: { clientId: SerializedClient['socketId'], volume: types.AudioLevelObserverVolume['volume'] }[]) => void
+  'active-speaker': (arg?: SerializedClient['socketId']) => void
+  'channel-created': (arg: Channel) => void
+  'channel-removed': (arg: Channel['id']) => void
+  'channel-updated': (arg: Channel) => void
+}
+
+export interface InterServerEvent {}
+
+export interface SocketData {
+  user: User
+}
+
+export type ChadSocket = Socket<ClientToServerEvents, ServerToClientEvents, InterServerEvent, SocketData>
+export type ChadSocketServer = Server<ClientToServerEvents, ServerToClientEvents, InterServerEvent, SocketData>

server/plugins/socket/webrtc/Channel.ts

@@ -0,0 +1,119 @@
+import type { types } from 'mediasoup'
+import type { ActiveSpeakerObserverDominantSpeaker } from 'mediasoup/types'
+import type { Client } from './Client.ts'
+import { EventEmitter } from 'node:events'
+
+interface ChannelEvents {
+  'speaking-peers': [{
+    socketId: string
+    volume: number
+  }[]]
+  'silence': []
+  'active-speaker': [socketId: string]
+  'empty': []
+}
+
+export class Channel extends EventEmitter<ChannelEvents> {
+  readonly id: string
+  readonly persistent: boolean
+  readonly #audioLevelObserver: types.AudioLevelObserver
+  readonly #activeSpeakerObserver: types.ActiveSpeakerObserver
+  readonly #clients = new Map<string, Client>()
+
+  private constructor(
+    id: string,
+    persistent: boolean,
+    audioLevelObserver: types.AudioLevelObserver,
+    activeSpeakerObserver: types.ActiveSpeakerObserver,
+  ) {
+    super()
+
+    this.id = id
+    this.persistent = persistent
+    this.#audioLevelObserver = audioLevelObserver
+    this.#activeSpeakerObserver = activeSpeakerObserver
+
+    this.#audioLevelObserver.on('volumes', (volumes: types.AudioLevelObserverVolume[]) => {
+      this.emit('speaking-peers', volumes.map(({ producer, volume }) => {
+        const { socketId } = producer.appData as { socketId: string }
+        return { socketId, volume }
+      }))
+    })
+
+    this.#audioLevelObserver.on('silence', () => {
+      this.emit('silence')
+    })
+
+    this.#activeSpeakerObserver.on('dominantspeaker', ({ producer }: ActiveSpeakerObserverDominantSpeaker) => {
+      const { socketId } = producer.appData as { socketId: string }
+      this.emit('active-speaker', socketId)
+    })
+  }
+
+  static async create(id: string, persistent: boolean, router: types.Router): Promise<Channel> {
+    const audioLevelObserver = await router.createAudioLevelObserver({
+      maxEntries: 10,
+      threshold: -80,
+      interval: 800,
+    })
+
+    const activeSpeakerObserver = await router.createActiveSpeakerObserver()
+
+    return new Channel(id, persistent, audioLevelObserver, activeSpeakerObserver)
+  }
+
+  get clients(): Client[] {
+    return Array.from(this.#clients.values())
+  }
+
+  get size(): number {
+    return this.#clients.size
+  }
+
+  getClient(socketId: string): Client | undefined {
+    return this.#clients.get(socketId)
+  }
+
+  addClient(client: Client): void {
+    client.channelId = this.id
+    this.#clients.set(client.socketId, client)
+  }
+
+  kickClient(client: Client): void {
+    this.#clients.delete(client.socketId)
+
+    if (this.#clients.size === 0)
+      this.emit('empty')
+  }
+
+  async addAudioProducer(producer: types.Producer): Promise<void> {
+    if (producer.kind !== 'audio')
+      return
+
+    await this.#audioLevelObserver.addProducer({ producerId: producer.id })
+    await this.#activeSpeakerObserver.addProducer({ producerId: producer.id })
+  }
+
+  async wireClient(client: Client): Promise<void> {
+    for (const otherClient of this.#clients.values()) {
+      if (otherClient.socketId === client.socketId)
+        continue
+
+      for (const producer of otherClient.producers.values()) {
+        await client.createConsumerFor(producer, otherClient.socketId)
+      }
+
+      for (const producer of client.producers.values()) {
+        await otherClient.createConsumerFor(producer, client.socketId)
+      }
+    }
+  }
+
+  unwireClient(client: Client): void {
+    for (const otherClient of this.#clients.values()) {
+      for (const producerId of client.producers.keys()) {
+        otherClient.removeConsumersOf(producerId)
+      }
+    }
+  }
+}

server/plugins/socket/webrtc/ChannelManager.ts

@@ -0,0 +1,33 @@
+import type { Router } from 'mediasoup/types'
+import type { Channel as DbChannel } from '../../../prisma/generated-client/client.ts'
+import { Channel } from './Channel.ts'
+
+export class ChannelManager {
+  private channels = new Map<string, Channel>()
+  private mediasoupRouter: Router
+
+  constructor(mediasoupRouter: Router) {
+    this.mediasoupRouter = mediasoupRouter
+  }
+
+  async create(newChannel: Channel | DbChannel) {
+    if (newChannel instanceof Channel) {
+      this.channels.set(newChannel.id, newChannel)
+    }
+    else {
+      this.channels.set(newChannel.id, await Channel.create(newChannel.id, newChannel.persistent, this.mediasoupRouter))
+    }
+  }
+
+  get(id: string) {
+    return this.channels.get(id)
+  }
+
+  delete(id: string) {
+    this.channels.delete(id)
+  }
+
+  get all() {
+    return Array.from(this.channels.values())
+  }
+}

server/plugins/socket/webrtc/Client.ts

@@ -0,0 +1,288 @@
+import type { types } from 'mediasoup'
+import type { SerializedClient } from '../types.ts'
+import { EventEmitter } from 'node:events'
+import { consola } from 'consola'
+
+export interface NewConsumerSignal {
+  socketId: string
+  producerId: string
+  id: string
+  kind: types.MediaKind
+  rtpParameters: types.RtpParameters
+  type: types.ConsumerType
+  appData: types.Producer['appData']
+  producerPaused: boolean
+}
+
+interface ClientEvents {
+  'signal:new-consumer': [data: NewConsumerSignal, onAcked: () => Promise<void>]
+  'consumer:closed': [consumerId: string]
+  'consumer:paused': [consumerId: string]
+  'consumer:resumed': [consumerId: string]
+  'transport:closed': []
+  'closed': []
+  'updated': []
+}
+
+export class Client extends EventEmitter<ClientEvents> {
+  readonly socketId: string
+  readonly userId: string
+
+  channelId: string = ''
+  #inputMuted = false
+  #outputMuted = false
+
+  readonly #router: types.Router
+
+  readonly #transports = new Map<string, types.WebRtcTransport>()
+  readonly #producers = new Map<string, types.Producer>()
+  readonly #consumers = new Map<string, types.Consumer>()
+
+  constructor(socketId: string, userId: string, router: types.Router) {
+    super()
+
+    this.socketId = socketId
+    this.userId = userId
+    this.#router = router
+  }
+
+  get producers(): ReadonlyMap<string, types.Producer> { return this.#producers }
+  get consumers(): ReadonlyMap<string, types.Consumer> { return this.#consumers }
+  get transports(): ReadonlyMap<string, types.WebRtcTransport> { return this.#transports }
+  get inputMuted(): boolean { return this.#inputMuted }
+  get outputMuted(): boolean { return this.#outputMuted }
+  get streaming(): boolean {
+    return Array.from(this.#producers.values()).some(
+      producer => producer.kind === 'video' && producer.appData.source === 'share',
+    )
+  }
+
+  async createTransport(options: { producing: boolean, consuming: boolean }) {
+    const transport = await this.#router.createWebRtcTransport({
+      listenInfos: [{
+        protocol: 'udp',
+        ip: '0.0.0.0',
+        announcedAddress: process.env.ANNOUNCED_ADDRESS || '127.0.0.1',
+        portRange: { min: 40000, max: 40100 },
+      }],
+      enableUdp: true,
+      preferUdp: true,
+      appData: options,
+    })
+
+    this.#transports.set(transport.id, transport)
+
+    transport.on('icestatechange', (iceState: types.IceState) => {
+      if (iceState === 'disconnected' || iceState === 'closed') {
+        consola.info('[Client]', `[${this.socketId}]`, `iceState=${iceState}`)
+        this.emit('transport:closed')
+      }
+    })
+
+    transport.on('dtlsstatechange', (dtlsState: types.DtlsState) => {
+      if (dtlsState === 'failed' || dtlsState === 'closed') {
+        consola.warn('[Client]', `[${this.socketId}]`, `dtlsState=${dtlsState}`)
+        this.emit('transport:closed')
+      }
+    })
+
+    return {
+      id: transport.id,
+      iceParameters: transport.iceParameters,
+      iceCandidates: transport.iceCandidates,
+      dtlsParameters: transport.dtlsParameters,
+    }
+  }
+
+  async connectTransport(transportId: string, dtlsParameters: types.DtlsParameters): Promise<void> {
+    const transport = this.#transports.get(transportId)
+
+    if (!transport)
+      throw new Error(`Transport not found: ${transportId}`)
+
+    await transport.connect({ dtlsParameters })
+  }
+
+  async produce(
+    transportId: string,
+    kind: types.MediaKind,
+    rtpParameters: types.RtpParameters,
+    appData: object,
+  ): Promise<types.Producer> {
+    const transport = this.#transports.get(transportId)
+    if (!transport)
+      throw new Error(`Transport not found: ${transportId}`)
+
+    const streamingBefore = this.streaming
+
+    const producer = await transport.produce({
+      kind,
+      rtpParameters,
+      appData: { ...appData, socketId: this.socketId },
+    })
+
+    this.#producers.set(producer.id, producer)
+
+    if (this.streaming !== streamingBefore)
+      this.emit('updated')
+
+    return producer
+  }
+
+  closeProducer(producerId: string): void {
+    const producer = this.#producers.get(producerId)
+
+    if (!producer)
+      throw new Error(`Producer not found: ${producerId}`)
+
+    const streamingBefore = this.streaming
+    producer.close()
+    this.#producers.delete(producerId)
+
+    if (this.streaming !== streamingBefore)
+      this.emit('updated')
+  }
+
+  async pauseProducer(producerId: string): Promise<void> {
+    const producer = this.#producers.get(producerId)
+
+    if (!producer)
+      throw new Error(`Producer not found: ${producerId}`)
+
+    if (!producer.paused)
+      await producer.pause()
+  }
+
+  async resumeProducer(producerId: string): Promise<void> {
+    const producer = this.#producers.get(producerId)
+
+    if (!producer)
+      throw new Error(`Producer not found: ${producerId}`)
+
+    await producer.resume()
+  }
+
+  async createConsumerFor(producer: types.Producer, producerSocketId: string): Promise<types.Consumer | null> {
+    const transport = Array.from(this.#transports.values()).find(t => t.appData.consuming)
+
+    if (!transport) {
+      consola.warn('[Client]', `[${this.socketId}]`, 'No consuming transport, skipping consumer creation')
+      return null
+    }
+
+    try {
+      const consumer = await transport.consume({
+        producerId: producer.id,
+        rtpCapabilities: this.#router.rtpCapabilities,
+        enableRtx: true,
+        paused: true,
+        ignoreDtx: true,
+      })
+
+      this.#consumers.set(consumer.id, consumer)
+
+      consumer.observer.on('close', () => {
+        this.#consumers.delete(consumer.id)
+        this.emit('consumer:closed', consumer.id)
+      })
+
+      consumer.on('transportclose', () => {
+        consumer.close()
+      })
+
+      consumer.on('producerclose', () => {
+        consumer.close()
+      })
+
+      consumer.on('producerpause', () => {
+        this.emit('consumer:paused', consumer.id)
+      })
+
+      consumer.on('producerresume', () => {
+        this.emit('consumer:resumed', consumer.id)
+      })
+
+      await new Promise<void>((resolve) => {
+        this.emit('signal:new-consumer', {
+          socketId: producerSocketId,
+          producerId: producer.id,
+          id: consumer.id,
+          kind: consumer.kind,
+          rtpParameters: consumer.rtpParameters,
+          type: consumer.type,
+          appData: producer.appData,
+          producerPaused: consumer.producerPaused,
+        }, async () => { resolve() })
+      })
+
+      await consumer.resume()
+
+      return consumer
+    }
+    catch (error) {
+      consola.error('[Client]', `[${this.socketId}]`, 'createConsumerFor() failed:', error)
+      return null
+    }
+  }
+
+  removeConsumersOf(producerId: string): void {
+    for (const consumer of this.#consumers.values()) {
+      if (consumer.producerId === producerId)
+        consumer.close()
+    }
+  }
+
+  clearConsumers(): void {
+    for (const consumer of this.#consumers.values()) {
+      consumer.close()
+    }
+
+    this.#consumers.clear()
+  }
+
+  async pauseConsumer(consumerId: string): Promise<void> {
+    const consumer = this.#consumers.get(consumerId)
+
+    if (!consumer)
+      throw new Error(`Consumer not found: ${consumerId}`)
+
+    await consumer.pause()
+  }
+
+  async resumeConsumer(consumerId: string): Promise<void> {
+    const consumer = this.#consumers.get(consumerId)
+
+    if (!consumer)
+      throw new Error(`Consumer not found: ${consumerId}`)
+
+    await consumer.resume()
+  }
+
+  update(patch: { inputMuted?: boolean, outputMuted?: boolean }): void {
+    if (typeof patch.inputMuted === 'boolean')
+      this.#inputMuted = patch.inputMuted
+    if (typeof patch.outputMuted === 'boolean')
+      this.#outputMuted = patch.outputMuted
+
+    this.emit('updated')
+  }
+
+  close(): void {
+    for (const transport of this.#transports.values()) {
+      transport.close()
+    }
+
+    this.emit('closed')
+  }
+
+  serialize(): SerializedClient {
+    return {
+      socketId: this.socketId,
+      userId: this.userId,
+      channelId: this.channelId,
+      inputMuted: this.#inputMuted,
+      outputMuted: this.#outputMuted,
+      streaming: this.streaming,
+    }
+  }
+}

server/plugins/socket/webrtc/Gateway.ts

@@ -0,0 +1,254 @@
+import type { types } from 'mediasoup'
+import type { ChadSocket, ChadSocketServer } from '../types.ts'
+import type { Channel } from './Channel.ts'
+import type { ChannelManager } from './ChannelManager.ts'
+import type { Client } from './Client.ts'
+import { consola } from 'consola'
+
+export class WebRtcGateway {
+  readonly #io: ChadSocketServer
+  readonly #socket: ChadSocket
+  readonly #client: Client
+  readonly #channels: ChannelManager
+
+  constructor(
+    io: ChadSocketServer,
+    socket: ChadSocket,
+    client: Client,
+    channels: ChannelManager,
+  ) {
+    this.#io = io
+    this.#socket = socket
+    this.#client = client
+    this.#channels = channels
+
+    this.register()
+  }
+
+  register(): void {
+    this.#client.on('signal:new-consumer', async (data, onAcked) => {
+      await this.#socket.emitWithAck('new-consumer', data)
+      await onAcked()
+    })
+    this.#client.on('consumer:closed', consumerId => this.#socket.emit('consumer-closed', { consumerId }))
+    this.#client.on('consumer:paused', consumerId => this.#socket.emit('consumer-paused', { consumerId }))
+    this.#client.on('consumer:resumed', consumerId => this.#socket.emit('consumer-resumed', { consumerId }))
+    this.#client.on('transport:closed', () => this.#socket.disconnect())
+    this.#client.on('updated', () => this.#io.emit('client-updated', this.#client.serialize()))
+
+    this.#socket.on('join-channel', this.#onJoinChannel.bind(this))
+    this.#socket.on('create-transport', this.#onCreateTransport.bind(this))
+    this.#socket.on('connect-transport', this.#onConnectTransport.bind(this))
+    this.#socket.on('produce', this.#onProduce.bind(this))
+    this.#socket.on('close-producer', this.#onCloseProducer.bind(this))
+    this.#socket.on('pause-producer', this.#onPauseProducer.bind(this))
+    this.#socket.on('resume-producer', this.#onResumeProducer.bind(this))
+    this.#socket.on('pause-consumer', this.#onPauseConsumer.bind(this))
+    this.#socket.on('resume-consumer', this.#onResumeConsumer.bind(this))
+    this.#socket.on('update-client', this.#onUpdateClient.bind(this))
+    this.#socket.on('disconnect', this.#onDisconnect.bind(this))
+  }
+
+  async #onJoinChannel({ channelId }: { channelId: string }): Promise<void> {
+    if (this.#client.channelId === channelId)
+      return
+
+    const newChannel = this.#channels.get(channelId)
+
+    if (!newChannel) {
+      consola.error('[Gateway]', `Channel not found: ${channelId}`)
+      return
+    }
+
+    const oldChannel = this.#channels.get(this.#client.channelId)
+
+    if (oldChannel)
+      this.#leaveChannel(oldChannel)
+
+    this.#client.clearConsumers()
+
+    this.#socket.join(newChannel.id)
+    newChannel.addClient(this.#client)
+    await newChannel.wireClient(this.#client)
+
+    this.#io.emit('client-switched-channel', this.#client.serialize())
+  }
+
+  async #onCreateTransport(
+    { producing, consuming }: { producing: boolean, consuming: boolean },
+    cb: (result: any) => void,
+  ): Promise<void> {
+    try {
+      const transportData = await this.#client.createTransport({ producing, consuming })
+      cb(transportData)
+
+      if (consuming) {
+        const channel = this.#channels.get(this.#client.channelId)
+
+        if (channel)
+          await channel.wireClient(this.#client)
+      }
+    }
+    catch (error) {
+      if (error instanceof Error) {
+        consola.error('[Gateway]', '[createTransport]', error.message)
+        cb({ error: error.message })
+      }
+    }
+  }
+
+  async #onConnectTransport(
+    { transportId, dtlsParameters }: { transportId: string, dtlsParameters: types.DtlsParameters },
+    cb: (result: any) => void,
+  ): Promise<void> {
+    try {
+      await this.#client.connectTransport(transportId, dtlsParameters)
+      cb({ ok: true })
+    }
+    catch (error) {
+      if (error instanceof Error) {
+        consola.error('[Gateway]', '[connectTransport]', error.message)
+        cb({ error: error.message })
+      }
+    }
+  }
+
+  async #onProduce(
+    { transportId, kind, rtpParameters, appData }: {
+      transportId: string
+      kind: types.MediaKind
+      rtpParameters: types.RtpParameters
+      appData: { source: string }
+    },
+    cb: (result: any) => void,
+  ): Promise<void> {
+    try {
+      const producer = await this.#client.produce(transportId, kind, rtpParameters, appData)
+      cb({ id: producer.id })
+
+      const channel = this.#channels.get(this.#client.channelId)
+      if (channel) {
+        for (const peer of channel.clients) {
+          if (peer.socketId !== this.#client.socketId)
+            await peer.createConsumerFor(producer, this.#client.socketId)
+        }
+
+        if (kind === 'audio')
+          await channel.addAudioProducer(producer)
+      }
+    }
+    catch (error) {
+      if (error instanceof Error) {
+        consola.error('[Gateway]', '[produce]', error.message)
+        cb({ error: error.message })
+      }
+    }
+  }
+
+  #onCloseProducer(
+    { producerId }: { producerId: string },
+    cb: (result: any) => void,
+  ): void {
+    try {
+      this.#client.closeProducer(producerId)
+      cb({ ok: true })
+    }
+    catch (error) {
+      if (error instanceof Error) {
+        consola.error('[Gateway]', '[closeProducer]', error.message)
+        cb({ error: error.message })
+      }
+    }
+  }
+
+  async #onPauseProducer(
+    { producerId }: { producerId: string },
+    cb: (result: any) => void,
+  ): Promise<void> {
+    try {
+      await this.#client.pauseProducer(producerId)
+      cb({ ok: true })
+    }
+    catch (error) {
+      if (error instanceof Error) {
+        consola.error('[Gateway]', '[pauseProducer]', error.message)
+        cb({ error: error.message })
+      }
+    }
+  }
+
+  async #onResumeProducer(
+    { producerId }: { producerId: string },
+    cb: (result: any) => void,
+  ): Promise<void> {
+    try {
+      await this.#client.resumeProducer(producerId)
+      cb({ ok: true })
+    }
+    catch (error) {
+      if (error instanceof Error) {
+        consola.error('[Gateway]', '[resumeProducer]', error.message)
+        cb({ error: error.message })
+      }
+    }
+  }
+
+  async #onPauseConsumer(
+    { consumerId }: { consumerId: string },
+    cb: (result: any) => void,
+  ): Promise<void> {
+    try {
+      await this.#client.pauseConsumer(consumerId)
+      cb({ ok: true })
+    }
+    catch (error) {
+      if (error instanceof Error) {
+        consola.error('[Gateway]', '[pauseConsumer]', error.message)
+        cb({ error: error.message })
+      }
+    }
+  }
+
+  async #onResumeConsumer(
+    { consumerId }: { consumerId: string },
+    cb: (result: any) => void,
+  ): Promise<void> {
+    try {
+      await this.#client.resumeConsumer(consumerId)
+      cb({ ok: true })
+    }
+    catch (error) {
+      if (error instanceof Error) {
+        consola.error('[Gateway]', '[resumeConsumer]', error.message)
+        cb({ error: error.message })
+      }
+    }
+  }
+
+  #onUpdateClient(
+    patch: { inputMuted?: boolean, outputMuted?: boolean },
+    cb: (result: any) => void,
+  ): void {
+    this.#client.update(patch)
+    cb(this.#client.serialize())
+  }
+
+  #leaveChannel(channel: Channel): void {
+    channel.unwireClient(this.#client)
+    channel.kickClient(this.#client)
+    this.#socket.leave(channel.id)
+  }
+
+  #onDisconnect(): void {
+    consola.info('[Gateway]', 'Client disconnected:', this.#client.socketId)
+
+    this.#socket.broadcast.emit('client-disconnected', this.#client.socketId)
+
+    const channel = this.#channels.get(this.#client.channelId)
+
+    if (channel)
+      this.#leaveChannel(channel)
+
+    this.#client.close()
+  }
+}

server/plugins/socket/webrtc/MessagingService.ts

@@ -0,0 +1,14 @@
+import type { Channel } from '../../../prisma/generated-client/browser.ts'
+import type { ChannelManager } from './ChannelManager.ts'
+import type { Client } from './Client.ts'
+
+export class MessagingService {
+  private channels: ChannelManager
+
+  constructor(channels: ChannelManager) {
+    this.channels = channels
+  }
+
+  joinChannel(client: Client, channel: Channel) {
+  }
+}

server/plugins/socket/webrtc/index.ts

@@ -0,0 +1,96 @@
+import type { FastifyInstance } from 'fastify'
+import { consola } from 'consola'
+import { Channel } from './Channel.ts'
+import { ChannelManager } from './ChannelManager.ts'
+import { Client } from './Client.ts'
+import { WebRtcGateway } from './Gateway.ts'
+
+export default async function (fastify: FastifyInstance) {
+  const { io, bus, mediasoupRouter, prisma } = fastify
+
+  const channels = new ChannelManager(mediasoupRouter)
+
+  const dbChannels = await prisma.channel.findMany()
+
+  for (const dbChannel of dbChannels) {
+    const channel = await Channel.create(dbChannel.id, dbChannel.persistent, mediasoupRouter)
+    channels.create(channel)
+    setupChannelEvents(channel)
+  }
+
+  const defaultChannel = channels.get('default')!
+
+  io.on('connection', async (socket) => {
+    consola.info('[WebRtc]', 'Client connected', socket.id)
+
+    const client = new Client(socket.id, socket.data.user.id, mediasoupRouter)
+
+    defaultChannel.addClient(client)
+    socket.join(defaultChannel.id)
+
+    const _gateway = new WebRtcGateway(io, socket, client, channels)
+
+    socket.emit('initialized', {
+      rtpCapabilities: mediasoupRouter.rtpCapabilities,
+      channelId: client.channelId,
+      clients: channels.all.flatMap(c => c.clients).map(c => c.serialize()),
+    })
+
+    socket.broadcast.emit('new-client', client.serialize())
+  })
+
+  bus.on('channel:created', async (dbChannel) => {
+    io.emit('channel-created', dbChannel)
+
+    const channel = await Channel.create(dbChannel.id, dbChannel.persistent, mediasoupRouter)
+
+    channels.create(channel)
+    setupChannelEvents(channel)
+  })
+
+  bus.on('channel:removed', async (dbChannel) => {
+    io.emit('channel-removed', dbChannel.id)
+
+    const channel = channels.get(dbChannel.id)
+
+    if (!channel)
+      return
+
+    for (const client of channel.clients) {
+      channel.unwireClient(client)
+      client.clearConsumers()
+
+      const socket = io.sockets.sockets.get(client.socketId)
+      if (socket) {
+        socket.leave(dbChannel.id)
+        defaultChannel.addClient(client)
+        socket.join(defaultChannel.id)
+        await defaultChannel.wireClient(client)
+        io.emit('client-switched-channel', client.serialize())
+      }
+    }
+
+    channels.delete(dbChannel.id)
+  })
+
+  function setupChannelEvents(channel: Channel): void {
+    channel.on('speaking-peers', peers => io.to(channel.id).emit('speaking-clients', peers))
+
+    channel.on('silence', () => {
+      io.to(channel.id).emit('speaking-clients', [])
+      io.to(channel.id).emit('active-speaker', undefined)
+    })
+
+    channel.on('active-speaker', socketId => io.to(channel.id).emit('active-speaker', socketId))
+
+    channel.on('empty', async () => {
+      if (channel.persistent)
+        return
+
+      channels.delete(channel.id)
+      await prisma.channel.delete({ where: { id: channel.id } })
+      consola.info('[WebRtc]', `Non-persistent channel "${channel.id}" deleted`)
+      io.emit('channel-removed', channel.id)
+    })
+  }
+}