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import { Component, Input, OnDestroy, OnInit, ViewChild } from '@angular/core'
import { User } from '../shared/users/user.model'
import { UserNotificationService } from '@app/shared/users/user-notification.service'
import { Subscription } from 'rxjs'
import { Notifier } from '@app/core'
import { NgbPopover } from '@ng-bootstrap/ng-bootstrap'
import { NavigationEnd, Router } from '@angular/router'
import { filter } from 'rxjs/operators'
@Component({
selector: 'my-avatar-notification',
templateUrl: './avatar-notification.component.html',
styleUrls: [ './avatar-notification.component.scss' ]
})
export class AvatarNotificationComponent implements OnInit, OnDestroy {
@ViewChild('popover') popover: NgbPopover
@Input() user: User
unreadNotifications = 0
private notificationSub: Subscription
private routeSub: Subscription
constructor (
private userNotificationService: UserNotificationService,
private notifier: Notifier,
private router: Router
) {}
ngOnInit () {
this.userNotificationService.countUnreadNotifications()
.subscribe(
result => {
this.unreadNotifications = Math.min(result, 99) // Limit number to 99
this.subscribeToNotifications()
},
err => this.notifier.error(err.message)
)
this.routeSub = this.router.events
.pipe(filter(event => event instanceof NavigationEnd))
.subscribe(() => this.closePopover())
}
ngOnDestroy () {
if (this.notificationSub) this.notificationSub.unsubscribe()
if (this.routeSub) this.routeSub.unsubscribe()
}
closePopover () {
this.popover.close()
}
private subscribeToNotifications () {
this.notificationSub = this.userNotificationService.getMyNotificationsSocket()
.subscribe(data => {
if (data.type === 'new') return this.unreadNotifications++
if (data.type === 'read') return this.unreadNotifications--
if (data.type === 'read-all') return this.unreadNotifications = 0
})
}
}
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