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1 | import { Component, Input, OnChanges, OnDestroy, OnInit, SimpleChanges } from '@angular/core' | |
2 | import { ActivatedRoute } from '@angular/router' | |
3 | import { ConfirmService } from '@app/core' | |
4 | import { NotificationsService } from 'angular2-notifications' | |
5 | import { Subscription } from 'rxjs/Subscription' | |
6 | import { VideoCommentThreadTree } from '../../../../../../shared/models/videos/video-comment.model' | |
7 | import { AuthService } from '../../../core/auth' | |
8 | import { ComponentPagination } from '../../../shared/rest/component-pagination.model' | |
9 | import { User } from '../../../shared/users' | |
10 | import { SortField } from '../../../shared/video/sort-field.type' | |
11 | import { VideoDetails } from '../../../shared/video/video-details.model' | |
12 | import { VideoComment } from './video-comment.model' | |
13 | import { VideoCommentService } from './video-comment.service' | |
14 | ||
15 | @Component({ | |
16 | selector: 'my-video-comments', | |
17 | templateUrl: './video-comments.component.html', | |
18 | styleUrls: ['./video-comments.component.scss'] | |
19 | }) | |
20 | export class VideoCommentsComponent implements OnInit, OnChanges, OnDestroy { | |
21 | @Input() video: VideoDetails | |
22 | @Input() user: User | |
23 | ||
24 | comments: VideoComment[] = [] | |
25 | highlightedThread: VideoComment | |
26 | sort: SortField = '-createdAt' | |
27 | componentPagination: ComponentPagination = { | |
28 | currentPage: 1, | |
29 | itemsPerPage: 10, | |
30 | totalItems: null | |
31 | } | |
32 | inReplyToCommentId: number | |
33 | threadComments: { [ id: number ]: VideoCommentThreadTree } = {} | |
34 | threadLoading: { [ id: number ]: boolean } = {} | |
35 | ||
36 | private sub: Subscription | |
37 | ||
38 | constructor ( | |
39 | private authService: AuthService, | |
40 | private notificationsService: NotificationsService, | |
41 | private confirmService: ConfirmService, | |
42 | private videoCommentService: VideoCommentService, | |
43 | private activatedRoute: ActivatedRoute | |
44 | ) {} | |
45 | ||
46 | ngOnInit () { | |
47 | // Find highlighted comment in params | |
48 | this.sub = this.activatedRoute.params.subscribe( | |
49 | params => { | |
50 | if (params['threadId']) { | |
51 | const highlightedThreadId = +params['threadId'] | |
52 | this.processHighlightedThread(highlightedThreadId) | |
53 | } | |
54 | } | |
55 | ) | |
56 | } | |
57 | ||
58 | ngOnChanges (changes: SimpleChanges) { | |
59 | if (changes['video']) { | |
60 | this.resetVideo() | |
61 | } | |
62 | } | |
63 | ||
64 | ngOnDestroy () { | |
65 | if (this.sub) this.sub.unsubscribe() | |
66 | } | |
67 | ||
68 | viewReplies (commentId: number, highlightThread = false) { | |
69 | this.threadLoading[commentId] = true | |
70 | ||
71 | this.videoCommentService.getVideoThreadComments(this.video.id, commentId) | |
72 | .subscribe( | |
73 | res => { | |
74 | this.threadComments[commentId] = res | |
75 | this.threadLoading[commentId] = false | |
76 | ||
77 | if (highlightThread) this.highlightedThread = new VideoComment(res.comment) | |
78 | }, | |
79 | ||
80 | err => this.notificationsService.error('Error', err.message) | |
81 | ) | |
82 | } | |
83 | ||
84 | loadMoreComments () { | |
85 | this.videoCommentService.getVideoCommentThreads(this.video.id, this.componentPagination, this.sort) | |
86 | .subscribe( | |
87 | res => { | |
88 | this.comments = this.comments.concat(res.comments) | |
89 | this.componentPagination.totalItems = res.totalComments | |
90 | }, | |
91 | ||
92 | err => this.notificationsService.error('Error', err.message) | |
93 | ) | |
94 | } | |
95 | ||
96 | onCommentThreadCreated (comment: VideoComment) { | |
97 | this.comments.unshift(comment) | |
98 | } | |
99 | ||
100 | onWantedToReply (comment: VideoComment) { | |
101 | this.inReplyToCommentId = comment.id | |
102 | } | |
103 | ||
104 | onResetReply () { | |
105 | this.inReplyToCommentId = undefined | |
106 | } | |
107 | ||
108 | onThreadCreated (commentTree: VideoCommentThreadTree) { | |
109 | this.viewReplies(commentTree.comment.id) | |
110 | } | |
111 | ||
112 | onWantedToDelete (commentToDelete: VideoComment) { | |
113 | let message = 'Do you really want to delete this comment?' | |
114 | if (commentToDelete.totalReplies !== 0) message += `${commentToDelete.totalReplies} would be deleted too.` | |
115 | ||
116 | this.confirmService.confirm(message, 'Delete').subscribe( | |
117 | res => { | |
118 | if (res === false) return | |
119 | ||
120 | this.videoCommentService.deleteVideoComment(commentToDelete.videoId, commentToDelete.id) | |
121 | .subscribe( | |
122 | () => { | |
123 | // Delete the comment in the tree | |
124 | if (commentToDelete.inReplyToCommentId) { | |
125 | const thread = this.threadComments[commentToDelete.threadId] | |
126 | if (!thread) { | |
127 | console.error(`Cannot find thread ${commentToDelete.threadId} of the comment to delete ${commentToDelete.id}`) | |
128 | return | |
129 | } | |
130 | ||
131 | this.deleteLocalCommentThread(thread, commentToDelete) | |
132 | return | |
133 | } | |
134 | ||
135 | // Delete the thread | |
136 | this.comments = this.comments.filter(c => c.id !== commentToDelete.id) | |
137 | this.componentPagination.totalItems-- | |
138 | }, | |
139 | ||
140 | err => this.notificationsService.error('Error', err.message) | |
141 | ) | |
142 | } | |
143 | ) | |
144 | } | |
145 | ||
146 | isUserLoggedIn () { | |
147 | return this.authService.isLoggedIn() | |
148 | } | |
149 | ||
150 | onNearOfBottom () { | |
151 | this.componentPagination.currentPage++ | |
152 | ||
153 | if (this.hasMoreComments()) { | |
154 | this.loadMoreComments() | |
155 | } | |
156 | } | |
157 | ||
158 | private hasMoreComments () { | |
159 | // No results | |
160 | if (this.componentPagination.totalItems === 0) return false | |
161 | ||
162 | // Not loaded yet | |
163 | if (!this.componentPagination.totalItems) return true | |
164 | ||
165 | const maxPage = this.componentPagination.totalItems / this.componentPagination.itemsPerPage | |
166 | return maxPage > this.componentPagination.currentPage | |
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.loadMoreComments() | |
192 | } | |
193 | } | |
194 | ||
195 | private processHighlightedThread (highlightedThreadId: number) { | |
196 | this.highlightedThread = this.comments.find(c => c.id === highlightedThreadId) | |
197 | ||
198 | const highlightThread = true | |
199 | this.viewReplies(highlightedThreadId, highlightThread) | |
200 | } | |
201 | } |