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[github/Chocobozzz/PeerTube.git] / client / src / app / shared / shared-main / users / user-notifications.component.ts

import { Subject } from 'rxjs'
import { Component, EventEmitter, Input, OnInit, Output } from '@angular/core'
import { ComponentPagination, hasMoreItems, Notifier } from '@app/core'
import { UserNotificationType, AbuseState } from '@shared/models'
import { UserNotification } from './user-notification.model'
import { UserNotificationService } from './user-notification.service'

@Component({
  selector: 'my-user-notifications',
  templateUrl: 'user-notifications.component.html',
  styleUrls: [ 'user-notifications.component.scss' ]
})
export class UserNotificationsComponent implements OnInit {
  @Input() ignoreLoadingBar = false
  @Input() infiniteScroll = true
  @Input() itemsPerPage = 20
  @Input() markAllAsReadSubject: Subject<boolean>

  @Output() notificationsLoaded = new EventEmitter()

  notifications: UserNotification[] = []
  sortField = 'createdAt'

  componentPagination: ComponentPagination

  onDataSubject = new Subject<any[]>()

  constructor (
    private userNotificationService: UserNotificationService,
    private notifier: Notifier
  ) { }

  ngOnInit () {
    this.componentPagination = {
      currentPage: 1,
      itemsPerPage: this.itemsPerPage, // Reset items per page, because of the @Input() variable
      totalItems: null
    }

    this.loadNotifications()

    if (this.markAllAsReadSubject) {
      this.markAllAsReadSubject.subscribe(() => this.markAllAsRead())
    }
  }

  loadNotifications (reset?: boolean) {
    this.userNotificationService.listMyNotifications({
      pagination: this.componentPagination,
      ignoreLoadingBar: this.ignoreLoadingBar,
      sort: {
        field: this.sortField,
        // if we order by creation date, we want DESC. all other fields are ASC (like unread).
        order: this.sortField === 'createdAt' ? -1 : 1
      }
    })
        .subscribe(
          result => {
            this.notifications = reset ? result.data : this.notifications.concat(result.data)
            this.componentPagination.totalItems = result.total

            this.notificationsLoaded.emit()

            this.onDataSubject.next(result.data)
          },

          err => this.notifier.error(err.message)
        )
  }

  onNearOfBottom () {
    if (this.infiniteScroll === false) return

    this.componentPagination.currentPage++

    if (hasMoreItems(this.componentPagination)) {
      this.loadNotifications()
    }
  }

  markAsRead (notification: UserNotification) {
    if (notification.read) return

    this.userNotificationService.markAsRead(notification)
        .subscribe(
          () => {
            notification.read = true
          },

          err => this.notifier.error(err.message)
        )
  }

  markAllAsRead () {
    this.userNotificationService.markAllAsRead()
        .subscribe(
          () => {
            for (const notification of this.notifications) {
              notification.read = true
            }
          },

          err => this.notifier.error(err.message)
        )
  }

  changeSortColumn (column: string) {
    this.componentPagination = {
      currentPage: 1,
      itemsPerPage: this.itemsPerPage,
      totalItems: null
    }
    this.sortField = column
    this.loadNotifications(true)
  }

  isAccepted (notification: UserNotification) {
    return notification.abuse.state === AbuseState.ACCEPTED
  }
}