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import { Subject } from 'rxjs'
import { io, Socket } from 'socket.io-client'
import { Injectable } from '@angular/core'
import { LiveVideoEventPayload, LiveVideoEventType, UserNotification as UserNotificationServer } from '@shared/models'
import { environment } from '../../../environments/environment'
import { AuthService } from '../auth'
export type NotificationEvent = 'new' | 'read' | 'read-all'
@Injectable()
export class PeerTubeSocket {
private io: typeof io
private notificationSubject = new Subject<{ type: NotificationEvent, notification?: UserNotificationServer }>()
private liveVideosSubject = new Subject<{ type: LiveVideoEventType, payload: LiveVideoEventPayload }>()
private notificationSocket: Socket
private liveVideosSocket: Socket
constructor (
private auth: AuthService
) {}
async getMyNotificationsSocket () {
await this.initNotificationSocket()
return this.notificationSubject.asObservable()
}
getLiveVideosObservable () {
return this.liveVideosSubject.asObservable()
}
async subscribeToLiveVideosSocket (videoId: number) {
await this.initLiveVideosSocket()
this.liveVideosSocket.emit('subscribe', { videoId })
}
unsubscribeLiveVideos (videoId: number) {
if (!this.liveVideosSocket) return
this.liveVideosSocket.emit('unsubscribe', { videoId })
}
dispatchNotificationEvent (type: NotificationEvent, notification?: UserNotificationServer) {
this.notificationSubject.next({ type, notification })
}
private async initNotificationSocket () {
if (this.notificationSocket) return
await this.importIOIfNeeded()
this.notificationSocket = this.io(environment.apiUrl + '/user-notifications', {
query: { accessToken: this.auth.getAccessToken() }
})
this.notificationSocket.on('new-notification', (n: UserNotificationServer) => {
this.dispatchNotificationEvent('new', n)
})
}
private async initLiveVideosSocket () {
if (this.liveVideosSocket) return
await this.importIOIfNeeded()
this.liveVideosSocket = this.io(environment.apiUrl + '/live-videos')
const types: LiveVideoEventType[] = [ 'views-change', 'state-change' ]
for (const type of types) {
this.liveVideosSocket.on(type, (payload: LiveVideoEventPayload) => {
this.dispatchLiveVideoEvent(type, payload)
})
}
}
private async importIOIfNeeded () {
if (this.io) return
this.io = (await import('socket.io-client')).io
}
private dispatchLiveVideoEvent (type: LiveVideoEventType, payload: LiveVideoEventPayload) {
this.liveVideosSubject.next({ type, payload })
}
}
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