blob: 75d10b4e277851afd696b62e0b449ee1c643102d (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
import { VideoPlaylist, VideoPlaylistElement } from '../../../../../shared/models'
export class PlaylistTracker {
private currentPlaylistElement: VideoPlaylistElement
constructor (
private readonly playlist: VideoPlaylist,
private readonly playlistElements: VideoPlaylistElement[]
) {
}
getPlaylist () {
return this.playlist
}
getPlaylistElements () {
return this.playlistElements
}
hasNextPlaylistElement (position?: number) {
return !!this.getNextPlaylistElement(position)
}
getNextPlaylistElement (position?: number): VideoPlaylistElement {
if (!position) position = this.currentPlaylistElement.position + 1
if (position > this.playlist.videosLength) {
return undefined
}
const next = this.playlistElements.find(e => e.position === position)
if (!next || !next.video) {
return this.getNextPlaylistElement(position + 1)
}
return next
}
hasPreviousPlaylistElement (position?: number) {
return !!this.getPreviousPlaylistElement(position)
}
getPreviousPlaylistElement (position?: number): VideoPlaylistElement {
if (!position) position = this.currentPlaylistElement.position - 1
if (position < 1) {
return undefined
}
const prev = this.playlistElements.find(e => e.position === position)
if (!prev || !prev.video) {
return this.getNextPlaylistElement(position - 1)
}
return prev
}
nextVideoTitle () {
const next = this.getNextPlaylistElement()
if (!next) return ''
return next.video.name
}
setPosition (position: number) {
this.currentPlaylistElement = this.playlistElements.find(e => e.position === position)
if (!this.currentPlaylistElement || !this.currentPlaylistElement.video) {
console.error('Current playlist element is not valid.', this.currentPlaylistElement)
this.currentPlaylistElement = this.getNextPlaylistElement()
}
if (!this.currentPlaylistElement) {
throw new Error('This playlist does not have any valid element')
}
}
setCurrentElement (playlistElement: VideoPlaylistElement) {
this.currentPlaylistElement = playlistElement
}
getCurrentElement () {
return this.currentPlaylistElement
}
getCurrentPosition () {
if (!this.currentPlaylistElement) return -1
return this.currentPlaylistElement.position
}
}
|
