client/src/app/videos/+video-watch/comment/video-comments.component.ts

   1 import { Component, Input, OnInit } from '@angular/core'
   2 import { NotificationsService } from 'angular2-notifications'
   3 import { VideoCommentThreadTree } from '../../../../../../shared/models/videos/video-comment.model'
   4 import { AuthService } from '../../../core/auth'
   5 import { ComponentPagination } from '../../../shared/rest/component-pagination.model'
   6 import { User } from '../../../shared/users'
   7 import { SortField } from '../../../shared/video/sort-field.type'
   8 import { VideoDetails } from '../../../shared/video/video-details.model'
   9 import { Video } from '../../../shared/video/video.model'
  10 import { VideoComment } from './video-comment.model'
  11 import { VideoCommentService } from './video-comment.service'
  12
  13 @Component({
  14   selector: 'my-video-comments',
  15   templateUrl: './video-comments.component.html',
  16   styleUrls: ['./video-comments.component.scss']
  17 })
  18 export class VideoCommentsComponent implements OnInit {
  19   @Input() video: VideoDetails
  20   @Input() user: User
  21
  22   comments: VideoComment[] = []
  23   sort: SortField = '-createdAt'
  24   componentPagination: ComponentPagination = {
  25     currentPage: 1,
  26     itemsPerPage: 10,
  27     totalItems: null
  28   }
  29   inReplyToCommentId: number
  30   threadComments: { [ id: number ]: VideoCommentThreadTree } = {}
  31   threadLoading: { [ id: number ]: boolean } = {}
  32
  33   constructor (
  34     private authService: AuthService,
  35     private notificationsService: NotificationsService,
  36     private videoCommentService: VideoCommentService
  37   ) {}
  38
  39   ngOnInit () {
  40     if (this.video.commentsEnabled === true) {
  41       this.loadMoreComments()
  42     }
  43   }
  44
  45   viewReplies (comment: VideoComment) {
  46     this.threadLoading[comment.id] = true
  47
  48     this.videoCommentService.getVideoThreadComments(this.video.id, comment.id)
  49       .subscribe(
  50         res => {
  51           this.threadComments[comment.id] = res
  52           this.threadLoading[comment.id] = false
  53         },
  54
  55         err => this.notificationsService.error('Error', err.message)
  56       )
  57   }
  58
  59   loadMoreComments () {
  60     this.videoCommentService.getVideoCommentThreads(this.video.id, this.componentPagination, this.sort)
  61       .subscribe(
  62         res => {
  63           this.comments = this.comments.concat(res.comments)
  64           this.componentPagination.totalItems = res.totalComments
  65         },
  66
  67         err => this.notificationsService.error('Error', err.message)
  68       )
  69   }
  70
  71   onCommentThreadCreated (comment: VideoComment) {
  72     this.comments.unshift(comment)
  73   }
  74
  75   onWantedToReply (comment: VideoComment) {
  76     this.inReplyToCommentId = comment.id
  77   }
  78
  79   onResetReply () {
  80     this.inReplyToCommentId = undefined
  81   }
  82
  83   isUserLoggedIn () {
  84     return this.authService.isLoggedIn()
  85   }
  86
  87   onNearOfBottom () {
  88     this.componentPagination.currentPage++
  89
  90     if (this.hasMoreComments()) {
  91       this.loadMoreComments()
  92     }
  93   }
  94
  95   protected hasMoreComments () {
  96     // No results
  97     if (this.componentPagination.totalItems === 0) return false
  98
  99     // Not loaded yet
 100     if (!this.componentPagination.totalItems) return true
 101
 102     const maxPage = this.componentPagination.totalItems / this.componentPagination.itemsPerPage
 103     return maxPage > this.componentPagination.currentPage
 104   }
 105 }