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import { Injectable, NgZone } from '@angular/core'
import { environment } from '../../../environments/environment'
import { UserNotification as UserNotificationServer } from '../../../../../shared'
import { Subject } from 'rxjs'
import { AuthService } from '../auth'
export type NotificationEvent = 'new' | 'read' | 'read-all'
@Injectable()
export class UserNotificationSocket {
private notificationSubject = new Subject<{ type: NotificationEvent, notification?: UserNotificationServer }>()
private socket: SocketIOClient.Socket
constructor (
private auth: AuthService,
private ngZone: NgZone
) {}
dispatch (type: NotificationEvent, notification?: UserNotificationServer) {
this.notificationSubject.next({ type, notification })
}
async getMyNotificationsSocket () {
await this.initSocket()
return this.notificationSubject.asObservable()
}
private async initSocket () {
if (this.socket) return
// FIXME: import('..') returns a struct module, containing a "default" field corresponding to our sanitizeHtml function
const io: typeof import ('socket.io-client') = (await import('socket.io-client') as any).default
this.ngZone.runOutsideAngular(() => {
this.socket = io(environment.apiUrl + '/user-notifications', {
query: { accessToken: this.auth.getAccessToken() }
})
this.socket.on('new-notification', (n: UserNotificationServer) => this.dispatch('new', n))
})
}
}
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