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