Add links to comment mentions
[oweals/peertube.git] / client / src / app / videos / +video-watch / comment / video-comment-add.component.ts
1 import { Component, ElementRef, EventEmitter, Input, OnInit, Output, ViewChild } from '@angular/core'
2 import { FormBuilder, FormGroup } from '@angular/forms'
3 import { NotificationsService } from 'angular2-notifications'
4 import { Observable } from 'rxjs/Observable'
5 import { VideoCommentCreate } from '../../../../../../shared/models/videos/video-comment.model'
6 import { FormReactive } from '../../../shared'
7 import { VIDEO_COMMENT_TEXT } from '../../../shared/forms/form-validators/video-comment'
8 import { User } from '../../../shared/users'
9 import { Video } from '../../../shared/video/video.model'
10 import { VideoComment } from './video-comment.model'
11 import { VideoCommentService } from './video-comment.service'
12
13 @Component({
14   selector: 'my-video-comment-add',
15   templateUrl: './video-comment-add.component.html',
16   styleUrls: ['./video-comment-add.component.scss']
17 })
18 export class VideoCommentAddComponent extends FormReactive implements OnInit {
19   @Input() user: User
20   @Input() video: Video
21   @Input() parentComment: VideoComment
22   @Input() parentComments: VideoComment[]
23   @Input() focusOnInit = false
24
25   @Output() commentCreated = new EventEmitter<VideoCommentCreate>()
26
27   form: FormGroup
28   formErrors = {
29     'text': ''
30   }
31   validationMessages = {
32     'text': VIDEO_COMMENT_TEXT.MESSAGES
33   }
34
35   @ViewChild('textarea') private textareaElement: ElementRef
36
37   constructor (
38     private formBuilder: FormBuilder,
39     private notificationsService: NotificationsService,
40     private videoCommentService: VideoCommentService
41   ) {
42     super()
43   }
44
45   buildForm () {
46     this.form = this.formBuilder.group({
47       text: [ '', VIDEO_COMMENT_TEXT.VALIDATORS ]
48     })
49
50     this.form.valueChanges.subscribe(data => this.onValueChanged(data))
51   }
52
53   ngOnInit () {
54     this.buildForm()
55
56     if (this.focusOnInit === true) {
57       this.textareaElement.nativeElement.focus()
58     }
59
60     if (this.parentComment) {
61       const mentions = this.parentComments
62         .filter(c => c.account.id !== this.user.account.id) // Don't add mention of ourselves
63         .map(c => {
64           if (c.account.host) return '@' + c.account.name + '@' + c.account.host
65
66           return c.account.name
67         })
68
69       const mentionsSet = new Set(mentions)
70       const mentionsText = Array.from(mentionsSet).join(' ') + ' '
71
72       this.form.patchValue({ text: mentionsText })
73     }
74   }
75
76   onValidKey () {
77     this.onValueChanged()
78     if (!this.form.valid) return
79
80     this.formValidated()
81   }
82
83   formValidated () {
84     const commentCreate: VideoCommentCreate = this.form.value
85     let obs: Observable<any>
86
87     if (this.parentComment) {
88       obs = this.addCommentReply(commentCreate)
89     } else {
90       obs = this.addCommentThread(commentCreate)
91     }
92
93     obs.subscribe(
94       comment => {
95         this.commentCreated.emit(comment)
96         this.form.reset()
97       },
98
99       err => this.notificationsService.error('Error', err.text)
100     )
101   }
102
103   isAddButtonDisplayed () {
104     return this.form.value['text']
105   }
106
107   getUserAvatarUrl () {
108     return this.user.getAvatarUrl()
109   }
110
111   private addCommentReply (commentCreate: VideoCommentCreate) {
112     return this.videoCommentService
113       .addCommentReply(this.video.id, this.parentComment.id, commentCreate)
114   }
115
116   private addCommentThread (commentCreate: VideoCommentCreate) {
117     return this.videoCommentService
118       .addCommentThread(this.video.id, commentCreate)
119   }
120 }