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 import { HooksService } from '@app/core/plugins/hooks.service'
  16
  17 @Component({
  18   selector: 'my-video-comments',
  19   templateUrl: './video-comments.component.html',
  20   styleUrls: ['./video-comments.component.scss']
  21 })
  22 export class VideoCommentsComponent implements OnInit, OnChanges, OnDestroy {
  23   @ViewChild('commentHighlightBlock') commentHighlightBlock: ElementRef
  24   @Input() video: VideoDetails
  25   @Input() user: User
  26
  27   comments: VideoComment[] = []
  28   highlightedThread: VideoComment
  29   sort: VideoSortField = '-createdAt'
  30   componentPagination: ComponentPagination = {
  31     currentPage: 1,
  32     itemsPerPage: 10,
  33     totalItems: null
  34   }
  35   inReplyToCommentId: number
  36   threadComments: { [ id: number ]: VideoCommentThreadTree } = {}
  37   threadLoading: { [ id: number ]: boolean } = {}
  38
  39   syndicationItems: Syndication[] = []
  40
  41   private sub: Subscription
  42
  43   constructor (
  44     private authService: AuthService,
  45     private notifier: Notifier,
  46     private confirmService: ConfirmService,
  47     private videoCommentService: VideoCommentService,
  48     private activatedRoute: ActivatedRoute,
  49     private i18n: I18n,
  50     private hooks: HooksService
  51   ) {}
  52
  53   ngOnInit () {
  54     // Find highlighted comment in params
  55     this.sub = this.activatedRoute.params.subscribe(
  56       params => {
  57         if (params['threadId']) {
  58           const highlightedThreadId = +params['threadId']
  59           this.processHighlightedThread(highlightedThreadId)
  60         }
  61       }
  62     )
  63   }
  64
  65   ngOnChanges (changes: SimpleChanges) {
  66     if (changes['video']) {
  67       this.resetVideo()
  68     }
  69   }
  70
  71   ngOnDestroy () {
  72     if (this.sub) this.sub.unsubscribe()
  73   }
  74
  75   viewReplies (commentId: number, highlightThread = false) {
  76     this.threadLoading[commentId] = true
  77
  78     const params = {
  79       videoId: this.video.id,
  80       threadId: commentId
  81     }
  82
  83     const obs = this.hooks.wrapObsFun(
  84       this.videoCommentService.getVideoThreadComments.bind(this.videoCommentService),
  85       params,
  86       'video-watch',
  87       'filter:api.video-watch.video-thread-replies.list.params',
  88       'filter:api.video-watch.video-thread-replies.list.result'
  89     )
  90
  91     obs.subscribe(
  92         res => {
  93           this.threadComments[commentId] = res
  94           this.threadLoading[commentId] = false
  95
  96           if (highlightThread) {
  97             this.highlightedThread = new VideoComment(res.comment)
  98
  99             // Scroll to the highlighted thread
 100             setTimeout(() => this.commentHighlightBlock.nativeElement.scrollIntoView(), 0)
 101           }
 102         },
 103
 104         err => this.notifier.error(err.message)
 105       )
 106   }
 107
 108   loadMoreThreads () {
 109     const params = {
 110       videoId: this.video.id,
 111       componentPagination: this.componentPagination,
 112       sort: this.sort
 113     }
 114
 115     const obs = this.hooks.wrapObsFun(
 116       this.videoCommentService.getVideoCommentThreads.bind(this.videoCommentService),
 117       params,
 118       'video-watch',
 119       'filter:api.video-watch.video-threads.list.params',
 120       'filter:api.video-watch.video-threads.list.result'
 121     )
 122
 123     obs.subscribe(
 124       res => {
 125         this.comments = this.comments.concat(res.data)
 126         this.componentPagination.totalItems = res.total
 127       },
 128
 129       err => this.notifier.error(err.message)
 130     )
 131   }
 132
 133   onCommentThreadCreated (comment: VideoComment) {
 134     this.comments.unshift(comment)
 135   }
 136
 137   onWantedToReply (comment: VideoComment) {
 138     this.inReplyToCommentId = comment.id
 139   }
 140
 141   onResetReply () {
 142     this.inReplyToCommentId = undefined
 143   }
 144
 145   onThreadCreated (commentTree: VideoCommentThreadTree) {
 146     this.viewReplies(commentTree.comment.id)
 147   }
 148
 149   async onWantedToDelete (commentToDelete: VideoComment) {
 150     let message = 'Do you really want to delete this comment?'
 151
 152     if (commentToDelete.totalReplies !== 0) {
 153       message += this.i18n(' {{totalReplies}} replies will be deleted too.', { totalReplies: commentToDelete.totalReplies })
 154     }
 155
 156     if (commentToDelete.isLocal) {
 157       message += this.i18n(' The deletion will be sent to remote instances so they remove the comment too.')
 158     } else {
 159       message += this.i18n(' It is a remote comment, so the deletion will only be effective on your instance.')
 160     }
 161
 162     const res = await this.confirmService.confirm(message, this.i18n('Delete'))
 163     if (res === false) return
 164
 165     this.videoCommentService.deleteVideoComment(commentToDelete.videoId, commentToDelete.id)
 166       .subscribe(
 167         () => {
 168           // Delete the comment in the tree
 169           if (commentToDelete.inReplyToCommentId) {
 170             const thread = this.threadComments[commentToDelete.threadId]
 171             if (!thread) {
 172               console.error(`Cannot find thread ${commentToDelete.threadId} of the comment to delete ${commentToDelete.id}`)
 173               return
 174             }
 175
 176             this.deleteLocalCommentThread(thread, commentToDelete)
 177             return
 178           }
 179
 180           // Delete the thread
 181           this.comments = this.comments.filter(c => c.id !== commentToDelete.id)
 182           this.componentPagination.totalItems--
 183
 184           if (this.highlightedThread.id === commentToDelete.id) this.highlightedThread = undefined
 185         },
 186
 187         err => this.notifier.error(err.message)
 188       )
 189   }
 190
 191   isUserLoggedIn () {
 192     return this.authService.isLoggedIn()
 193   }
 194
 195   onNearOfBottom () {
 196     this.componentPagination.currentPage++
 197
 198     if (hasMoreItems(this.componentPagination)) {
 199       this.loadMoreThreads()
 200     }
 201   }
 202
 203   private deleteLocalCommentThread (parentComment: VideoCommentThreadTree, commentToDelete: VideoComment) {
 204     for (const commentChild of parentComment.children) {
 205       if (commentChild.comment.id === commentToDelete.id) {
 206         parentComment.children = parentComment.children.filter(c => c.comment.id !== commentToDelete.id)
 207         return
 208       }
 209
 210       this.deleteLocalCommentThread(commentChild, commentToDelete)
 211     }
 212   }
 213
 214   private resetVideo () {
 215     if (this.video.commentsEnabled === true) {
 216       // Reset all our fields
 217       this.highlightedThread = null
 218       this.comments = []
 219       this.threadComments = {}
 220       this.threadLoading = {}
 221       this.inReplyToCommentId = undefined
 222       this.componentPagination.currentPage = 1
 223       this.componentPagination.totalItems = null
 224
 225       this.syndicationItems = this.videoCommentService.getVideoCommentsFeeds(this.video.uuid)
 226
 227       this.loadMoreThreads()
 228     }
 229   }
 230
 231   private processHighlightedThread (highlightedThreadId: number) {
 232     this.highlightedThread = this.comments.find(c => c.id === highlightedThreadId)
 233
 234     const highlightThread = true
 235     this.viewReplies(highlightedThreadId, highlightThread)
 236   }
 237 }