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import { Component, Input, OnChanges, SimpleChanges } from '@angular/core'
import { ConfirmService } from '@app/core'
import { NotificationsService } from 'angular2-notifications'
import { VideoComment as VideoCommentInterface, VideoCommentThreadTree } from '../../../../../../shared/models/videos/video-comment.model'
import { AuthService } from '../../../core/auth'
import { ComponentPagination } from '../../../shared/rest/component-pagination.model'
import { User } from '../../../shared/users'
import { SortField } 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'
@Component({
selector: 'my-video-comments',
templateUrl: './video-comments.component.html',
styleUrls: ['./video-comments.component.scss']
})
export class VideoCommentsComponent implements OnChanges {
@Input() video: VideoDetails
@Input() user: User
comments: VideoComment[] = []
sort: SortField = '-createdAt'
componentPagination: ComponentPagination = {
currentPage: 1,
itemsPerPage: 10,
totalItems: null
}
inReplyToCommentId: number
threadComments: { [ id: number ]: VideoCommentThreadTree } = {}
threadLoading: { [ id: number ]: boolean } = {}
constructor (
private authService: AuthService,
private notificationsService: NotificationsService,
private confirmService: ConfirmService,
private videoCommentService: VideoCommentService
) {}
ngOnChanges (changes: SimpleChanges) {
if (changes['video']) {
this.loadVideoComments()
}
}
viewReplies (comment: VideoCommentInterface) {
this.threadLoading[comment.id] = true
this.videoCommentService.getVideoThreadComments(this.video.id, comment.id)
.subscribe(
res => {
this.threadComments[comment.id] = res
this.threadLoading[comment.id] = false
},
err => this.notificationsService.error('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.notificationsService.error('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)
}
onWantedToDelete (commentToDelete: VideoComment) {
let message = 'Do you really want to delete this comment?'
if (commentToDelete.totalReplies !== 0) message += `${commentToDelete.totalReplies} would be deleted too.`
this.confirmService.confirm(message, 'Delete').subscribe(
res => {
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--
},
err => this.notificationsService.error('Error', err.message)
)
}
)
}
isUserLoggedIn () {
return this.authService.isLoggedIn()
}
onNearOfBottom () {
this.componentPagination.currentPage++
if (this.hasMoreComments()) {
this.loadMoreComments()
}
}
private hasMoreComments () {
// No results
if (this.componentPagination.totalItems === 0) return false
// Not loaded yet
if (!this.componentPagination.totalItems) return true
const maxPage = this.componentPagination.totalItems / this.componentPagination.itemsPerPage
return maxPage > this.componentPagination.currentPage
}
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 loadVideoComments () {
if (this.video.commentsEnabled === true) {
// Reset all our fields
this.comments = []
this.threadComments = {}
this.threadLoading = {}
this.inReplyToCommentId = undefined
this.componentPagination.currentPage = 1
this.componentPagination.totalItems = null
this.loadMoreComments()
}
}
}
|
