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67ed6552 | 1 | import * as debug from 'debug' |
3da38d6e C |
2 | import { merge, Observable, of, ReplaySubject, Subject } from 'rxjs' |
3 | import { catchError, filter, map, switchMap, tap } from 'rxjs/operators' | |
f37dc0dd | 4 | import { HttpClient, HttpParams } from '@angular/common/http' |
afb7d2d5 | 5 | import { Injectable } from '@angular/core' |
67ed6552 | 6 | import { ComponentPaginationLight, RestExtractor, RestService } from '@app/core' |
3da38d6e | 7 | import { buildBulkObservable } from '@app/helpers' |
67ed6552 C |
8 | import { Video, VideoChannel, VideoChannelService, VideoService } from '@app/shared/shared-main' |
9 | import { ResultList, VideoChannel as VideoChannelServer, VideoSortField } from '@shared/models' | |
22a16e36 | 10 | import { environment } from '../../../environments/environment' |
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11 | |
12 | const logger = debug('peertube:subscriptions:UserSubscriptionService') | |
22a16e36 | 13 | |
f37dc0dd | 14 | type SubscriptionExistResult = { [ uri: string ]: boolean } |
9270ccf6 | 15 | type SubscriptionExistResultObservable = { [ uri: string ]: Observable<boolean> } |
f37dc0dd | 16 | |
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17 | @Injectable() |
18 | export class UserSubscriptionService { | |
19 | static BASE_USER_SUBSCRIPTIONS_URL = environment.apiUrl + '/api/v1/users/me/subscriptions' | |
20 | ||
f37dc0dd | 21 | // Use a replay subject because we "next" a value before subscribing |
9270ccf6 | 22 | private existsSubject = new ReplaySubject<string>(1) |
aa55a4da | 23 | private readonly existsObservable: Observable<SubscriptionExistResult> |
f37dc0dd | 24 | |
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25 | private myAccountSubscriptionCache: SubscriptionExistResult = {} |
26 | private myAccountSubscriptionCacheObservable: SubscriptionExistResultObservable = {} | |
27 | private myAccountSubscriptionCacheSubject = new Subject<SubscriptionExistResult>() | |
28 | ||
22a16e36 C |
29 | constructor ( |
30 | private authHttp: HttpClient, | |
f37dc0dd | 31 | private restExtractor: RestExtractor, |
67ed6552 | 32 | private videoService: VideoService, |
afb7d2d5 | 33 | private restService: RestService |
22a16e36 | 34 | ) { |
9270ccf6 | 35 | this.existsObservable = merge( |
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36 | buildBulkObservable({ |
37 | time: 500, | |
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38 | notifierObservable: this.existsSubject, |
39 | bulkGet: this.doSubscriptionsExist.bind(this) | |
40 | }), | |
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41 | |
42 | this.myAccountSubscriptionCacheSubject | |
f37dc0dd | 43 | ) |
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44 | } |
45 | ||
67ed6552 | 46 | getUserSubscriptionVideos (parameters: { |
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47 | videoPagination: ComponentPaginationLight |
48 | sort: VideoSortField | |
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49 | skipCount?: boolean |
50 | }): Observable<ResultList<Video>> { | |
51 | const { videoPagination, sort, skipCount } = parameters | |
52 | const pagination = this.restService.componentPaginationToRestPagination(videoPagination) | |
53 | ||
54 | let params = new HttpParams() | |
55 | params = this.restService.addRestGetParams(params, pagination, sort) | |
56 | ||
57 | if (skipCount) params = params.set('skipCount', skipCount + '') | |
58 | ||
59 | return this.authHttp | |
60 | .get<ResultList<Video>>(UserSubscriptionService.BASE_USER_SUBSCRIPTIONS_URL + '/videos', { params }) | |
61 | .pipe( | |
62 | switchMap(res => this.videoService.extractVideos(res)), | |
63 | catchError(err => this.restExtractor.handleError(err)) | |
64 | ) | |
65 | } | |
66 | ||
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67 | /** |
68 | * Subscription part | |
69 | */ | |
70 | ||
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71 | deleteSubscription (nameWithHost: string) { |
72 | const url = UserSubscriptionService.BASE_USER_SUBSCRIPTIONS_URL + '/' + nameWithHost | |
73 | ||
74 | return this.authHttp.delete(url) | |
75 | .pipe( | |
76 | map(this.restExtractor.extractDataBool), | |
9270ccf6 RK |
77 | tap(() => { |
78 | this.myAccountSubscriptionCache[nameWithHost] = false | |
79 | ||
80 | this.myAccountSubscriptionCacheSubject.next(this.myAccountSubscriptionCache) | |
81 | }), | |
22a16e36 C |
82 | catchError(err => this.restExtractor.handleError(err)) |
83 | ) | |
84 | } | |
85 | ||
86 | addSubscription (nameWithHost: string) { | |
87 | const url = UserSubscriptionService.BASE_USER_SUBSCRIPTIONS_URL | |
88 | ||
89 | const body = { uri: nameWithHost } | |
90 | return this.authHttp.post(url, body) | |
91 | .pipe( | |
92 | map(this.restExtractor.extractDataBool), | |
9270ccf6 RK |
93 | tap(() => { |
94 | this.myAccountSubscriptionCache[nameWithHost] = true | |
95 | ||
96 | this.myAccountSubscriptionCacheSubject.next(this.myAccountSubscriptionCache) | |
97 | }), | |
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98 | catchError(err => this.restExtractor.handleError(err)) |
99 | ) | |
100 | } | |
101 | ||
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102 | listSubscriptions (parameters: { |
103 | pagination: ComponentPaginationLight | |
104 | search: string | |
105 | }): Observable<ResultList<VideoChannel>> { | |
106 | const { pagination, search } = parameters | |
22a16e36 C |
107 | const url = UserSubscriptionService.BASE_USER_SUBSCRIPTIONS_URL |
108 | ||
4f5d0459 | 109 | const restPagination = this.restService.componentPaginationToRestPagination(pagination) |
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110 | |
111 | let params = new HttpParams() | |
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112 | params = this.restService.addRestGetParams(params, restPagination) |
113 | if (search) params = params.append('search', search) | |
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114 | |
115 | return this.authHttp.get<ResultList<VideoChannelServer>>(url, { params }) | |
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116 | .pipe( |
117 | map(res => VideoChannelService.extractVideoChannels(res)), | |
118 | catchError(err => this.restExtractor.handleError(err)) | |
119 | ) | |
120 | } | |
121 | ||
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122 | /** |
123 | * SubscriptionExist part | |
124 | */ | |
125 | ||
126 | listenToMyAccountSubscriptionCacheSubject () { | |
127 | return this.myAccountSubscriptionCacheSubject.asObservable() | |
128 | } | |
129 | ||
130 | listenToSubscriptionCacheChange (nameWithHost: string) { | |
131 | if (nameWithHost in this.myAccountSubscriptionCacheObservable) { | |
9df52d66 | 132 | return this.myAccountSubscriptionCacheObservable[nameWithHost] |
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133 | } |
134 | ||
135 | const obs = this.existsObservable | |
136 | .pipe( | |
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137 | filter(existsResult => existsResult[nameWithHost] !== undefined), |
138 | map(existsResult => existsResult[nameWithHost]) | |
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139 | ) |
140 | ||
9df52d66 | 141 | this.myAccountSubscriptionCacheObservable[nameWithHost] = obs |
9270ccf6 RK |
142 | return obs |
143 | } | |
144 | ||
f0a39880 | 145 | doesSubscriptionExist (nameWithHost: string) { |
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146 | logger('Running subscription check for %d.', nameWithHost) |
147 | ||
148 | if (nameWithHost in this.myAccountSubscriptionCache) { | |
149 | logger('Found cache for %d.', nameWithHost) | |
150 | ||
9df52d66 | 151 | return of(this.myAccountSubscriptionCache[nameWithHost]) |
9270ccf6 RK |
152 | } |
153 | ||
f37dc0dd | 154 | this.existsSubject.next(nameWithHost) |
22a16e36 | 155 | |
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156 | logger('Fetching from network for %d.', nameWithHost) |
157 | return this.existsObservable.pipe( | |
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158 | filter(existsResult => existsResult[nameWithHost] !== undefined), |
159 | map(existsResult => existsResult[nameWithHost]), | |
160 | tap(result => this.myAccountSubscriptionCache[nameWithHost] = result) | |
9270ccf6 | 161 | ) |
f37dc0dd | 162 | } |
22a16e36 | 163 | |
f0a39880 | 164 | private doSubscriptionsExist (uris: string[]): Observable<SubscriptionExistResult> { |
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165 | const url = UserSubscriptionService.BASE_USER_SUBSCRIPTIONS_URL + '/exist' |
166 | let params = new HttpParams() | |
167 | ||
168 | params = this.restService.addObjectParams(params, { uris }) | |
169 | ||
170 | return this.authHttp.get<SubscriptionExistResult>(url, { params }) | |
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171 | .pipe( |
172 | tap(res => { | |
173 | this.myAccountSubscriptionCache = { | |
174 | ...this.myAccountSubscriptionCache, | |
175 | ...res | |
176 | } | |
177 | }), | |
178 | catchError(err => this.restExtractor.handleError(err)) | |
179 | ) | |
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180 | } |
181 | } |