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1 | import { debounceTime } from 'rxjs/operators' | |
2 | import { OnDestroy, OnInit } from '@angular/core' | |
3 | import { ActivatedRoute, Router } from '@angular/router' | |
4 | import { fromEvent, Observable, Subscription } from 'rxjs' | |
5 | import { AuthService } from '../../core/auth' | |
6 | import { ComponentPagination } from '../rest/component-pagination.model' | |
7 | import { VideoSortField } from './sort-field.type' | |
8 | import { Video } from './video.model' | |
9 | import { ScreenService } from '@app/shared/misc/screen.service' | |
10 | import { MiniatureDisplayOptions, OwnerDisplayType } from '@app/shared/video/video-miniature.component' | |
11 | import { Syndication } from '@app/shared/video/syndication.model' | |
12 | import { Notifier, ServerService } from '@app/core' | |
13 | import { DisableForReuseHook } from '@app/core/routing/disable-for-reuse-hook' | |
14 | ||
15 | export abstract class AbstractVideoList implements OnInit, OnDestroy, DisableForReuseHook { | |
16 | pagination: ComponentPagination = { | |
17 | currentPage: 1, | |
18 | itemsPerPage: 25, | |
19 | totalItems: null | |
20 | } | |
21 | sort: VideoSortField = '-publishedAt' | |
22 | ||
23 | categoryOneOf?: number | |
24 | defaultSort: VideoSortField = '-publishedAt' | |
25 | ||
26 | syndicationItems: Syndication[] = [] | |
27 | ||
28 | loadOnInit = true | |
29 | videos: Video[] = [] | |
30 | ownerDisplayType: OwnerDisplayType = 'account' | |
31 | displayModerationBlock = false | |
32 | titleTooltip: string | |
33 | displayVideoActions = true | |
34 | ||
35 | disabled = false | |
36 | ||
37 | displayOptions: MiniatureDisplayOptions = { | |
38 | date: true, | |
39 | views: true, | |
40 | by: true, | |
41 | privacyLabel: true, | |
42 | privacyText: false, | |
43 | state: false, | |
44 | blacklistInfo: false | |
45 | } | |
46 | ||
47 | protected abstract notifier: Notifier | |
48 | protected abstract authService: AuthService | |
49 | protected abstract route: ActivatedRoute | |
50 | protected abstract serverService: ServerService | |
51 | protected abstract screenService: ScreenService | |
52 | protected abstract router: Router | |
53 | abstract titlePage: string | |
54 | ||
55 | private resizeSubscription: Subscription | |
56 | private angularState: number | |
57 | ||
58 | abstract getVideosObservable (page: number): Observable<{ videos: Video[], totalVideos: number }> | |
59 | ||
60 | abstract generateSyndicationList (): void | |
61 | ||
62 | get user () { | |
63 | return this.authService.getUser() | |
64 | } | |
65 | ||
66 | ngOnInit () { | |
67 | // Subscribe to route changes | |
68 | const routeParams = this.route.snapshot.queryParams | |
69 | this.loadRouteParams(routeParams) | |
70 | ||
71 | this.resizeSubscription = fromEvent(window, 'resize') | |
72 | .pipe(debounceTime(500)) | |
73 | .subscribe(() => this.calcPageSizes()) | |
74 | ||
75 | this.calcPageSizes() | |
76 | if (this.loadOnInit === true) this.loadMoreVideos() | |
77 | } | |
78 | ||
79 | ngOnDestroy () { | |
80 | if (this.resizeSubscription) this.resizeSubscription.unsubscribe() | |
81 | } | |
82 | ||
83 | disableForReuse () { | |
84 | this.disabled = true | |
85 | } | |
86 | ||
87 | enabledForReuse () { | |
88 | this.disabled = false | |
89 | } | |
90 | ||
91 | videoById (index: number, video: Video) { | |
92 | return video.id | |
93 | } | |
94 | ||
95 | onNearOfBottom () { | |
96 | if (this.disabled) return | |
97 | ||
98 | // Last page | |
99 | if (this.pagination.totalItems <= (this.pagination.currentPage * this.pagination.itemsPerPage)) return | |
100 | ||
101 | this.pagination.currentPage += 1 | |
102 | ||
103 | this.setScrollRouteParams() | |
104 | ||
105 | this.loadMoreVideos() | |
106 | } | |
107 | ||
108 | loadMoreVideos () { | |
109 | const observable = this.getVideosObservable(this.pagination.currentPage) | |
110 | ||
111 | observable.subscribe( | |
112 | ({ videos, totalVideos }) => { | |
113 | this.pagination.totalItems = totalVideos | |
114 | this.videos = this.videos.concat(videos) | |
115 | ||
116 | this.onMoreVideos() | |
117 | }, | |
118 | ||
119 | error => this.notifier.error(error.message) | |
120 | ) | |
121 | } | |
122 | ||
123 | reloadVideos () { | |
124 | this.pagination.currentPage = 1 | |
125 | this.videos = [] | |
126 | this.loadMoreVideos() | |
127 | } | |
128 | ||
129 | toggleModerationDisplay () { | |
130 | throw new Error('toggleModerationDisplay is not implemented') | |
131 | } | |
132 | ||
133 | removeVideoFromArray (video: Video) { | |
134 | this.videos = this.videos.filter(v => v.id !== video.id) | |
135 | } | |
136 | ||
137 | // On videos hook for children that want to do something | |
138 | protected onMoreVideos () { /* empty */ } | |
139 | ||
140 | protected loadRouteParams (routeParams: { [ key: string ]: any }) { | |
141 | this.sort = routeParams[ 'sort' ] as VideoSortField || this.defaultSort | |
142 | this.categoryOneOf = routeParams[ 'categoryOneOf' ] | |
143 | this.angularState = routeParams[ 'a-state' ] | |
144 | } | |
145 | ||
146 | private calcPageSizes () { | |
147 | if (this.screenService.isInMobileView()) { | |
148 | this.pagination.itemsPerPage = 5 | |
149 | } | |
150 | } | |
151 | ||
152 | private setScrollRouteParams () { | |
153 | // Already set | |
154 | if (this.angularState) return | |
155 | ||
156 | this.angularState = 42 | |
157 | ||
158 | const queryParams = { | |
159 | 'a-state': this.angularState, | |
160 | categoryOneOf: this.categoryOneOf | |
161 | } | |
162 | ||
163 | let path = this.router.url | |
164 | if (!path || path === '/') path = this.serverService.getConfig().instance.defaultClientRoute | |
165 | ||
166 | this.router.navigate([ path ], { queryParams, replaceUrl: true, queryParamsHandling: 'merge' }) | |
167 | } | |
168 | } |