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01fe5bd7 | 1 | import { Observable, of } from 'rxjs' |
5c20a455 C |
2 | import { map, switchMap } from 'rxjs/operators' |
3 | import { Injectable } from '@angular/core' | |
67ed6552 | 4 | import { ServerService, UserService } from '@app/core' |
67ed6552 | 5 | import { Video, VideoService } from '@app/shared/shared-main' |
1942f11d | 6 | import { AdvancedSearch, SearchService } from '@app/shared/shared-search' |
2989628b | 7 | import { HTMLServerConfig } from '@shared/models' |
67ed6552 C |
8 | import { RecommendationInfo } from './recommendation-info.model' |
9 | import { RecommendationService } from './recommendations.service' | |
7f5f4152 BJ |
10 | |
11 | /** | |
12 | * Provides "recommendations" by providing the most recently uploaded videos. | |
13 | */ | |
14 | @Injectable() | |
15 | export class RecentVideosRecommendationService implements RecommendationService { | |
7f5f4152 BJ |
16 | readonly pageSize = 5 |
17 | ||
2989628b | 18 | private config: HTMLServerConfig |
ff9c3d9b | 19 | |
7f5f4152 | 20 | constructor ( |
b0c36821 | 21 | private videos: VideoService, |
ff9c3d9b | 22 | private searchService: SearchService, |
5c20a455 | 23 | private userService: UserService, |
ff9c3d9b C |
24 | private serverService: ServerService |
25 | ) { | |
2989628b | 26 | this.config = this.serverService.getHTMLConfig() |
5c20a455 | 27 | } |
7f5f4152 | 28 | |
b0c36821 | 29 | getRecommendations (recommendation: RecommendationInfo): Observable<Video[]> { |
2989628b | 30 | |
b0c36821 | 31 | return this.fetchPage(1, recommendation) |
7f5f4152 | 32 | .pipe( |
e972e046 C |
33 | map(videos => { |
34 | const otherVideos = videos.filter(v => v.uuid !== recommendation.uuid) | |
7f5f4152 BJ |
35 | return otherVideos.slice(0, this.pageSize) |
36 | }) | |
37 | ) | |
38 | } | |
39 | ||
b0c36821 | 40 | private fetchPage (page: number, recommendation: RecommendationInfo): Observable<Video[]> { |
01fe5bd7 | 41 | const pagination = { currentPage: page, itemsPerPage: this.pageSize + 1 } |
3caf77d3 | 42 | const defaultSubscription = this.videos.getVideos({ videoPagination: pagination, sort: '-createdAt' }) |
93cae479 | 43 | .pipe(map(v => v.data)) |
01fe5bd7 | 44 | |
ff9c3d9b C |
45 | const tags = recommendation.tags |
46 | const searchIndexConfig = this.config.search.searchIndex | |
47 | if ( | |
48 | !tags || tags.length === 0 || | |
49 | (searchIndexConfig.enabled === true && searchIndexConfig.disableLocalSearch === true) | |
50 | ) { | |
51 | return defaultSubscription | |
52 | } | |
01fe5bd7 | 53 | |
5c20a455 C |
54 | return this.userService.getAnonymousOrLoggedUser() |
55 | .pipe( | |
56 | map(user => { | |
57 | return { | |
58 | search: '', | |
59 | componentPagination: pagination, | |
60 | advancedSearch: new AdvancedSearch({ | |
61 | tagsOneOf: recommendation.tags.join(','), | |
456c9bfd | 62 | sort: '-publishedAt', |
5c20a455 C |
63 | searchTarget: 'local', |
64 | nsfw: user.nsfwPolicy | |
65 | ? this.videos.nsfwPolicyToParam(user.nsfwPolicy) | |
66 | : undefined | |
67 | }) | |
68 | } | |
69 | }), | |
70 | switchMap(params => this.searchService.searchVideos(params)), | |
71 | map(v => v.data), | |
72 | switchMap(videos => { | |
73 | if (videos.length <= 1) return defaultSubscription | |
93cae479 | 74 | |
5c20a455 C |
75 | return of(videos) |
76 | }) | |
77 | ) | |
7f5f4152 | 78 | } |
7f5f4152 | 79 | } |