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import { Observable, of, Subject } from 'rxjs'
import { first, map, share, shareReplay, switchMap, tap } from 'rxjs/operators'
import { HttpClient } from '@angular/common/http'
import { Inject, Injectable, LOCALE_ID } from '@angular/core'
import { getDevLocale, isOnDevLocale, sortBy } from '@app/helpers'
import { getCompleteLocale, isDefaultLocale, peertubeTranslate } from '@shared/core-utils/i18n'
import { HTMLServerConfig, SearchTargetType, ServerConfig, ServerStats, VideoConstant } from '@shared/models'
import { environment } from '../../../environments/environment'
@Injectable()
export class ServerService {
private static BASE_CONFIG_URL = environment.apiUrl + '/api/v1/config/'
private static BASE_VIDEO_URL = environment.apiUrl + '/api/v1/videos/'
private static BASE_VIDEO_PLAYLIST_URL = environment.apiUrl + '/api/v1/video-playlists/'
private static BASE_LOCALE_URL = environment.apiUrl + '/client/locales/'
private static BASE_STATS_URL = environment.apiUrl + '/api/v1/server/stats'
configReloaded = new Subject<ServerConfig>()
private localeObservable: Observable<any>
private videoLicensesObservable: Observable<VideoConstant<number>[]>
private videoCategoriesObservable: Observable<VideoConstant<number>[]>
private videoPrivaciesObservable: Observable<VideoConstant<number>[]>
private videoPlaylistPrivaciesObservable: Observable<VideoConstant<number>[]>
private videoLanguagesObservable: Observable<VideoConstant<string>[]>
private configObservable: Observable<ServerConfig>
private configReset = false
private configLoaded = false
private config: ServerConfig
private htmlConfig: HTMLServerConfig
constructor (
private http: HttpClient,
@Inject(LOCALE_ID) private localeId: string
) {
}
loadHTMLConfig () {
try {
return this.loadHTMLConfigLocally()
} catch (err) {
// Expected in dev mode since we can't inject the config in the HTML
if (environment.production !== false) {
console.error('Cannot load config locally. Fallback to API.')
}
return this.getConfig()
}
}
getServerVersionAndCommit () {
const serverVersion = this.config.serverVersion
const commit = this.config.serverCommit || ''
let result = serverVersion
if (commit) result += '...' + commit
return result
}
resetConfig () {
this.configLoaded = false
this.configReset = true
// Notify config update
return this.getConfig()
}
getConfig () {
if (this.configLoaded) return of(this.config)
if (!this.configObservable) {
this.configObservable = this.http.get<ServerConfig>(ServerService.BASE_CONFIG_URL)
.pipe(
tap(config => {
this.config = config
this.htmlConfig = config
this.configLoaded = true
}),
tap(config => {
if (this.configReset) {
this.configReloaded.next(config)
this.configReset = false
}
}),
share()
)
}
return this.configObservable
}
getHTMLConfig () {
return this.htmlConfig
}
getVideoCategories () {
if (!this.videoCategoriesObservable) {
this.videoCategoriesObservable = this.loadAttributeEnum<number>(ServerService.BASE_VIDEO_URL, 'categories', true)
}
return this.videoCategoriesObservable.pipe(first())
}
getVideoLicences () {
if (!this.videoLicensesObservable) {
this.videoLicensesObservable = this.loadAttributeEnum<number>(ServerService.BASE_VIDEO_URL, 'licences')
}
return this.videoLicensesObservable.pipe(first())
}
getVideoLanguages () {
if (!this.videoLanguagesObservable) {
this.videoLanguagesObservable = this.loadAttributeEnum<string>(ServerService.BASE_VIDEO_URL, 'languages', true)
}
return this.videoLanguagesObservable.pipe(first())
}
getVideoPrivacies () {
if (!this.videoPrivaciesObservable) {
this.videoPrivaciesObservable = this.loadAttributeEnum<number>(ServerService.BASE_VIDEO_URL, 'privacies')
}
return this.videoPrivaciesObservable.pipe(first())
}
getVideoPlaylistPrivacies () {
if (!this.videoPlaylistPrivaciesObservable) {
this.videoPlaylistPrivaciesObservable = this.loadAttributeEnum<number>(ServerService.BASE_VIDEO_PLAYLIST_URL, 'privacies')
}
return this.videoPlaylistPrivaciesObservable.pipe(first())
}
getServerLocale () {
if (!this.localeObservable) {
const completeLocale = isOnDevLocale() ? getDevLocale() : getCompleteLocale(this.localeId)
// Default locale, nothing to translate
if (isDefaultLocale(completeLocale)) {
this.localeObservable = of({}).pipe(shareReplay())
} else {
this.localeObservable = this.http
.get(ServerService.BASE_LOCALE_URL + completeLocale + '/server.json')
.pipe(shareReplay())
}
}
return this.localeObservable.pipe(first())
}
getServerStats () {
return this.http.get<ServerStats>(ServerService.BASE_STATS_URL)
}
private loadAttributeEnum <T extends string | number> (
baseUrl: string,
attributeName: 'categories' | 'licences' | 'languages' | 'privacies',
sort = false
) {
return this.getServerLocale()
.pipe(
switchMap(translations => {
return this.http.get<{ [ id: string ]: string }>(baseUrl + attributeName)
.pipe(map(data => ({ data, translations })))
}),
map(({ data, translations }) => {
const hashToPopulate: VideoConstant<T>[] = Object.keys(data)
.map(dataKey => {
const label = data[ dataKey ]
const id = attributeName === 'languages'
? dataKey as T
: parseInt(dataKey, 10) as T
return {
id,
label: peertubeTranslate(label, translations)
}
})
if (sort === true) sortBy(hashToPopulate, 'label')
return hashToPopulate
}),
shareReplay()
)
}
private loadHTMLConfigLocally () {
const configString = window['PeerTubeServerConfig']
if (!configString) {
throw new Error('Could not find PeerTubeServerConfig in HTML')
}
this.htmlConfig = JSON.parse(configString)
}
}
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