client/src/app/menu/avatar-notification.component.ts

   1 import { Component, Input, OnDestroy, OnInit, ViewChild } from '@angular/core'
   2 import { User } from '../shared/users/user.model'
   3 import { UserNotificationService } from '@app/shared/users/user-notification.service'
   4 import { Subject, Subscription } from 'rxjs'
   5 import { Notifier, UserNotificationSocket } from '@app/core'
   6 import { NgbPopover } from '@ng-bootstrap/ng-bootstrap'
   7 import { NavigationEnd, Router } from '@angular/router'
   8 import { filter } from 'rxjs/operators'
   9 import { UserNotificationsComponent } from '@app/shared'
  10
  11 @Component({
  12   selector: 'my-avatar-notification',
  13   templateUrl: './avatar-notification.component.html',
  14   styleUrls: [ './avatar-notification.component.scss' ]
  15 })
  16 export class AvatarNotificationComponent implements OnInit, OnDestroy {
  17   @ViewChild('popover', { static: true }) popover: NgbPopover
  18
  19   @Input() user: User
  20
  21   unreadNotifications = 0
  22   loaded = false
  23
  24   markAllAsReadSubject = new Subject<boolean>()
  25
  26   private notificationSub: Subscription
  27   private routeSub: Subscription
  28
  29   constructor (
  30     private userNotificationService: UserNotificationService,
  31     private userNotificationSocket: UserNotificationSocket,
  32     private notifier: Notifier,
  33     private router: Router
  34   ) {
  35   }
  36
  37   ngOnInit () {
  38     this.userNotificationService.countUnreadNotifications()
  39         .subscribe(
  40           result => {
  41             this.unreadNotifications = Math.min(result, 99) // Limit number to 99
  42             this.subscribeToNotifications()
  43           },
  44
  45           err => this.notifier.error(err.message)
  46         )
  47
  48     this.routeSub = this.router.events
  49                         .pipe(filter(event => event instanceof NavigationEnd))
  50                         .subscribe(() => this.closePopover())
  51   }
  52
  53   ngOnDestroy () {
  54     if (this.notificationSub) this.notificationSub.unsubscribe()
  55     if (this.routeSub) this.routeSub.unsubscribe()
  56   }
  57
  58   closePopover () {
  59     this.popover.close()
  60   }
  61
  62   onPopoverHidden () {
  63     this.loaded = false
  64   }
  65
  66   onNotificationLoaded () {
  67     this.loaded = true
  68   }
  69
  70   markAllAsRead () {
  71     this.markAllAsReadSubject.next(true)
  72   }
  73
  74   private async subscribeToNotifications () {
  75     const obs = await this.userNotificationSocket.getMyNotificationsSocket()
  76
  77     this.notificationSub = obs.subscribe(data => {
  78       if (data.type === 'new') return this.unreadNotifications++
  79       if (data.type === 'read') return this.unreadNotifications--
  80       if (data.type === 'read-all') return this.unreadNotifications = 0
  81     })
  82   }
  83
  84 }