1 import { Subject } from 'rxjs'
2 import { Injectable, NgZone } from '@angular/core'
3 import { UserNotification as UserNotificationServer } from '@shared/models'
4 import { environment } from '../../../environments/environment'
5 import { AuthService } from '../auth'
7 export type NotificationEvent = 'new' | 'read' | 'read-all'
10 export class UserNotificationSocket {
11 private notificationSubject = new Subject<{ type: NotificationEvent, notification?: UserNotificationServer }>()
13 private socket: SocketIOClient.Socket
16 private auth: AuthService,
17 private ngZone: NgZone
20 dispatch (type: NotificationEvent, notification?: UserNotificationServer) {
21 this.notificationSubject.next({ type, notification })
24 async getMyNotificationsSocket () {
25 await this.initSocket()
27 return this.notificationSubject.asObservable()
30 private async initSocket () {
31 if (this.socket) return
33 // FIXME: import('..') returns a struct module, containing a "default" field corresponding to our sanitizeHtml function
34 const io: typeof import ('socket.io-client') = (await import('socket.io-client') as any).default
36 this.ngZone.runOutsideAngular(() => {
37 this.socket = io(environment.apiUrl + '/user-notifications', {
38 query: { accessToken: this.auth.getAccessToken() }
41 this.socket.on('new-notification', (n: UserNotificationServer) => this.dispatch('new', n))