1 import { Observable, of } from 'rxjs'
2 import { map, switchMap } from 'rxjs/operators'
3 import { Injectable } from '@angular/core'
4 import { ServerService } from '@app/core'
5 import { AdvancedSearch } from '@app/search/advanced-search.model'
6 import { SearchService } from '@app/search/search.service'
7 import { UserService } from '@app/shared'
8 import { RecommendationInfo } from '@app/shared/video/recommendation-info.model'
9 import { Video } from '@app/shared/video/video.model'
10 import { VideoService } from '@app/shared/video/video.service'
11 import { RecommendationService } from '@app/videos/recommendations/recommendations.service'
12 import { ServerConfig } from '@shared/models'
15 * Provides "recommendations" by providing the most recently uploaded videos.
18 export class RecentVideosRecommendationService implements RecommendationService {
21 private config: ServerConfig
24 private videos: VideoService,
25 private searchService: SearchService,
26 private userService: UserService,
27 private serverService: ServerService
29 this.config = this.serverService.getTmpConfig()
31 this.serverService.getConfig()
32 .subscribe(config => this.config = config)
35 getRecommendations (recommendation: RecommendationInfo): Observable<Video[]> {
36 return this.fetchPage(1, recommendation)
39 const otherVideos = videos.filter(v => v.uuid !== recommendation.uuid)
40 return otherVideos.slice(0, this.pageSize)
45 private fetchPage (page: number, recommendation: RecommendationInfo): Observable<Video[]> {
46 const pagination = { currentPage: page, itemsPerPage: this.pageSize + 1 }
47 const defaultSubscription = this.videos.getVideos({ videoPagination: pagination, sort: '-createdAt' })
48 .pipe(map(v => v.data))
50 const tags = recommendation.tags
51 const searchIndexConfig = this.config.search.searchIndex
53 !tags || tags.length === 0 ||
54 (searchIndexConfig.enabled === true && searchIndexConfig.disableLocalSearch === true)
56 return defaultSubscription
59 return this.userService.getAnonymousOrLoggedUser()
64 componentPagination: pagination,
65 advancedSearch: new AdvancedSearch({
66 tagsOneOf: recommendation.tags.join(','),
68 searchTarget: 'local',
70 ? this.videos.nsfwPolicyToParam(user.nsfwPolicy)
75 switchMap(params => this.searchService.searchVideos(params)),
78 if (videos.length <= 1) return defaultSubscription