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

   1 import { Component, ElementRef, Input, OnChanges, OnDestroy, OnInit, SimpleChanges, ViewChild } from '@angular/core'
   2 import { ActivatedRoute } from '@angular/router'
   3 import { ConfirmService, Notifier } from '@app/core'
   4 import { Subscription } from 'rxjs'
   5 import { VideoCommentThreadTree } from '../../../../../../shared/models/videos/video-comment.model'
   6 import { AuthService } from '../../../core/auth'
   7 import { ComponentPagination, hasMoreItems } from '../../../shared/rest/component-pagination.model'
   8 import { User } from '../../../shared/users'
   9 import { VideoSortField } from '../../../shared/video/sort-field.type'
  10 import { VideoDetails } from '../../../shared/video/video-details.model'
  11 import { VideoComment } from './video-comment.model'
  12 import { VideoCommentService } from './video-comment.service'
  13 import { I18n } from '@ngx-translate/i18n-polyfill'
  14 import { Syndication } from '@app/shared/video/syndication.model'
  15
  16 @Component({
  17   selector: 'my-video-comments',
  18   templateUrl: './video-comments.component.html',
  19   styleUrls: ['./video-comments.component.scss']
  20 })
  21 export class VideoCommentsComponent implements OnInit, OnChanges, OnDestroy {
  22   @ViewChild('commentHighlightBlock') commentHighlightBlock: ElementRef
  23   @Input() video: VideoDetails
  24   @Input() user: User
  25
  26   comments: VideoComment[] = []
  27   highlightedThread: VideoComment
  28   sort: VideoSortField = '-createdAt'
  29   componentPagination: ComponentPagination = {
  30     currentPage: 1,
  31     itemsPerPage: 10,
  32     totalItems: null
  33   }
  34   inReplyToCommentId: number
  35   threadComments: { [ id: number ]: VideoCommentThreadTree } = {}
  36   threadLoading: { [ id: number ]: boolean } = {}
  37
  38   syndicationItems: Syndication[] = []
  39
  40   private sub: Subscription
  41
  42   constructor (
  43     private authService: AuthService,
  44     private notifier: Notifier,
  45     private confirmService: ConfirmService,
  46     private videoCommentService: VideoCommentService,
  47     private activatedRoute: ActivatedRoute,
  48     private i18n: I18n
  49   ) {}
  50
  51   ngOnInit () {
  52     // Find highlighted comment in params
  53     this.sub = this.activatedRoute.params.subscribe(
  54       params => {
  55         if (params['threadId']) {
  56           const highlightedThreadId = +params['threadId']
  57           this.processHighlightedThread(highlightedThreadId)
  58         }
  59       }
  60     )
  61   }
  62
  63   ngOnChanges (changes: SimpleChanges) {
  64     if (changes['video']) {
  65       this.resetVideo()
  66     }
  67   }
  68
  69   ngOnDestroy () {
  70     if (this.sub) this.sub.unsubscribe()
  71   }
  72
  73   viewReplies (commentId: number, highlightThread = false) {
  74     this.threadLoading[commentId] = true
  75
  76     this.videoCommentService.getVideoThreadComments(this.video.id, commentId)
  77       .subscribe(
  78         res => {
  79           this.threadComments[commentId] = res
  80           this.threadLoading[commentId] = false
  81
  82           if (highlightThread) {
  83             this.highlightedThread = new VideoComment(res.comment)
  84
  85             // Scroll to the highlighted thread
  86             setTimeout(() => this.commentHighlightBlock.nativeElement.scrollIntoView(), 0)
  87           }
  88         },
  89
  90         err => this.notifier.error(err.message)
  91       )
  92   }
  93
  94   loadMoreComments () {
  95     this.videoCommentService.getVideoCommentThreads(this.video.id, this.componentPagination, this.sort)
  96       .subscribe(
  97         res => {
  98           this.comments = this.comments.concat(res.comments)
  99           this.componentPagination.totalItems = res.totalComments
 100         },
 101
 102         err => this.notifier.error(err.message)
 103       )
 104   }
 105
 106   onCommentThreadCreated (comment: VideoComment) {
 107     this.comments.unshift(comment)
 108   }
 109
 110   onWantedToReply (comment: VideoComment) {
 111     this.inReplyToCommentId = comment.id
 112   }
 113
 114   onResetReply () {
 115     this.inReplyToCommentId = undefined
 116   }
 117
 118   onThreadCreated (commentTree: VideoCommentThreadTree) {
 119     this.viewReplies(commentTree.comment.id)
 120   }
 121
 122   async onWantedToDelete (commentToDelete: VideoComment) {
 123     let message = 'Do you really want to delete this comment?'
 124     if (commentToDelete.totalReplies !== 0) {
 125       message += this.i18n(' {{totalReplies}} replies will be deleted too.', { totalReplies: commentToDelete.totalReplies })
 126     }
 127
 128     const res = await this.confirmService.confirm(message, this.i18n('Delete'))
 129     if (res === false) return
 130
 131     this.videoCommentService.deleteVideoComment(commentToDelete.videoId, commentToDelete.id)
 132       .subscribe(
 133         () => {
 134           // Delete the comment in the tree
 135           if (commentToDelete.inReplyToCommentId) {
 136             const thread = this.threadComments[commentToDelete.threadId]
 137             if (!thread) {
 138               console.error(`Cannot find thread ${commentToDelete.threadId} of the comment to delete ${commentToDelete.id}`)
 139               return
 140             }
 141
 142             this.deleteLocalCommentThread(thread, commentToDelete)
 143             return
 144           }
 145
 146           // Delete the thread
 147           this.comments = this.comments.filter(c => c.id !== commentToDelete.id)
 148           this.componentPagination.totalItems--
 149
 150           if (this.highlightedThread.id === commentToDelete.id) this.highlightedThread = undefined
 151         },
 152
 153         err => this.notifier.error(err.message)
 154       )
 155   }
 156
 157   isUserLoggedIn () {
 158     return this.authService.isLoggedIn()
 159   }
 160
 161   onNearOfBottom () {
 162     this.componentPagination.currentPage++
 163
 164     if (hasMoreItems(this.componentPagination)) {
 165       this.loadMoreComments()
 166     }
 167   }
 168
 169   private deleteLocalCommentThread (parentComment: VideoCommentThreadTree, commentToDelete: VideoComment) {
 170     for (const commentChild of parentComment.children) {
 171       if (commentChild.comment.id === commentToDelete.id) {
 172         parentComment.children = parentComment.children.filter(c => c.comment.id !== commentToDelete.id)
 173         return
 174       }
 175
 176       this.deleteLocalCommentThread(commentChild, commentToDelete)
 177     }
 178   }
 179
 180   private resetVideo () {
 181     if (this.video.commentsEnabled === true) {
 182       // Reset all our fields
 183       this.highlightedThread = null
 184       this.comments = []
 185       this.threadComments = {}
 186       this.threadLoading = {}
 187       this.inReplyToCommentId = undefined
 188       this.componentPagination.currentPage = 1
 189       this.componentPagination.totalItems = null
 190
 191       this.syndicationItems = this.videoCommentService.getVideoCommentsFeeds(this.video.uuid)
 192
 193       this.loadMoreComments()
 194     }
 195   }
 196
 197   private processHighlightedThread (highlightedThreadId: number) {
 198     this.highlightedThread = this.comments.find(c => c.id === highlightedThreadId)
 199
 200     const highlightThread = true
 201     this.viewReplies(highlightedThreadId, highlightThread)
 202   }
 203 }