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import { Component, ElementRef, Input, OnChanges, OnDestroy, OnInit, SimpleChanges, ViewChild } from '@angular/core'
import { ActivatedRoute } from '@angular/router'
import { ConfirmService, Notifier } from '@app/core'
import { Subscription } from 'rxjs'
import { VideoCommentThreadTree } from '../../../../../../shared/models/videos/video-comment.model'
import { AuthService } from '../../../core/auth'
import { ComponentPagination, hasMoreItems } from '../../../shared/rest/component-pagination.model'
import { User } from '../../../shared/users'
import { VideoSortField } from '../../../shared/video/sort-field.type'
import { VideoDetails } from '../../../shared/video/video-details.model'
import { VideoComment } from './video-comment.model'
import { VideoCommentService } from './video-comment.service'
import { I18n } from '@ngx-translate/i18n-polyfill'
import { Syndication } from '@app/shared/video/syndication.model'
@Component({
selector: 'my-video-comments',
templateUrl: './video-comments.component.html',
styleUrls: ['./video-comments.component.scss']
})
export class VideoCommentsComponent implements OnInit, OnChanges, OnDestroy {
@ViewChild('commentHighlightBlock') commentHighlightBlock: ElementRef
@Input() video: VideoDetails
@Input() user: User
comments: VideoComment[] = []
highlightedThread: VideoComment
sort: VideoSortField = '-createdAt'
componentPagination: ComponentPagination = {
currentPage: 1,
itemsPerPage: 10,
totalItems: null
}
inReplyToCommentId: number
threadComments: { [ id: number ]: VideoCommentThreadTree } = {}
threadLoading: { [ id: number ]: boolean } = {}
syndicationItems: Syndication[] = []
private sub: Subscription
constructor (
private authService: AuthService,
private notifier: Notifier,
private confirmService: ConfirmService,
private videoCommentService: VideoCommentService,
private activatedRoute: ActivatedRoute,
private i18n: I18n
) {}
ngOnInit () {
// Find highlighted comment in params
this.sub = this.activatedRoute.params.subscribe(
params => {
if (params['threadId']) {
const highlightedThreadId = +params['threadId']
this.processHighlightedThread(highlightedThreadId)
}
}
)
}
ngOnChanges (changes: SimpleChanges) {
if (changes['video']) {
this.resetVideo()
}
}
ngOnDestroy () {
if (this.sub) this.sub.unsubscribe()
}
viewReplies (commentId: number, highlightThread = false) {
this.threadLoading[commentId] = true
this.videoCommentService.getVideoThreadComments(this.video.id, commentId)
.subscribe(
res => {
this.threadComments[commentId] = res
this.threadLoading[commentId] = false
if (highlightThread) {
this.highlightedThread = new VideoComment(res.comment)
// Scroll to the highlighted thread
setTimeout(() => {
// -60 because of the fixed header
const scrollY = this.commentHighlightBlock.nativeElement.offsetTop - 60
window.scroll(0, scrollY)
}, 500)
}
},
err => this.notifier.error(err.message)
)
}
loadMoreComments () {
this.videoCommentService.getVideoCommentThreads(this.video.id, this.componentPagination, this.sort)
.subscribe(
res => {
this.comments = this.comments.concat(res.comments)
this.componentPagination.totalItems = res.totalComments
},
err => this.notifier.error(err.message)
)
}
onCommentThreadCreated (comment: VideoComment) {
this.comments.unshift(comment)
}
onWantedToReply (comment: VideoComment) {
this.inReplyToCommentId = comment.id
}
onResetReply () {
this.inReplyToCommentId = undefined
}
onThreadCreated (commentTree: VideoCommentThreadTree) {
this.viewReplies(commentTree.comment.id)
}
async onWantedToDelete (commentToDelete: VideoComment) {
let message = 'Do you really want to delete this comment?'
if (commentToDelete.totalReplies !== 0) {
message += this.i18n(' {{totalReplies}} replies will be deleted too.', { totalReplies: commentToDelete.totalReplies })
}
const res = await this.confirmService.confirm(message, this.i18n('Delete'))
if (res === false) return
this.videoCommentService.deleteVideoComment(commentToDelete.videoId, commentToDelete.id)
.subscribe(
() => {
// Delete the comment in the tree
if (commentToDelete.inReplyToCommentId) {
const thread = this.threadComments[commentToDelete.threadId]
if (!thread) {
console.error(`Cannot find thread ${commentToDelete.threadId} of the comment to delete ${commentToDelete.id}`)
return
}
this.deleteLocalCommentThread(thread, commentToDelete)
return
}
// Delete the thread
this.comments = this.comments.filter(c => c.id !== commentToDelete.id)
this.componentPagination.totalItems--
if (this.highlightedThread.id === commentToDelete.id) this.highlightedThread = undefined
},
err => this.notifier.error(err.message)
)
}
isUserLoggedIn () {
return this.authService.isLoggedIn()
}
onNearOfBottom () {
this.componentPagination.currentPage++
if (hasMoreItems(this.componentPagination)) {
this.loadMoreComments()
}
}
private deleteLocalCommentThread (parentComment: VideoCommentThreadTree, commentToDelete: VideoComment) {
for (const commentChild of parentComment.children) {
if (commentChild.comment.id === commentToDelete.id) {
parentComment.children = parentComment.children.filter(c => c.comment.id !== commentToDelete.id)
return
}
this.deleteLocalCommentThread(commentChild, commentToDelete)
}
}
private resetVideo () {
if (this.video.commentsEnabled === true) {
// Reset all our fields
this.highlightedThread = null
this.comments = []
this.threadComments = {}
this.threadLoading = {}
this.inReplyToCommentId = undefined
this.componentPagination.currentPage = 1
this.componentPagination.totalItems = null
this.syndicationItems = this.videoCommentService.getVideoCommentsFeeds(this.video.uuid)
this.loadMoreComments()
}
}
private processHighlightedThread (highlightedThreadId: number) {
this.highlightedThread = this.comments.find(c => c.id === highlightedThreadId)
const highlightThread = true
this.viewReplies(highlightedThreadId, highlightThread)
}
}
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