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import { forkJoin, Observable, of } from 'rxjs'
import { catchError, map, switchMap, tap } from 'rxjs/operators'
import { HttpClient, HttpParams } from '@angular/common/http'
import { Injectable } from '@angular/core'
import { RestExtractor, ServerService } from '@app/core'
import { immutableAssign } from '@app/helpers'
import { VideoService } from '@app/shared/shared-main'
import { peertubeTranslate } from '@shared/core-utils/i18n'
import { VideosOverview as VideosOverviewServer } from '@shared/models'
import { environment } from '../../../../environments/environment'
import { VideosOverview } from './videos-overview.model'
@Injectable()
export class OverviewService {
static BASE_OVERVIEW_URL = environment.apiUrl + '/api/v1/overviews/'
constructor (
private authHttp: HttpClient,
private restExtractor: RestExtractor,
private videosService: VideoService,
private serverService: ServerService
) {}
getVideosOverview (page: number): Observable<VideosOverview> {
let params = new HttpParams()
params = params.append('page', page + '')
return this.authHttp
.get<VideosOverviewServer>(OverviewService.BASE_OVERVIEW_URL + 'videos', { params })
.pipe(
switchMap(serverVideosOverview => this.updateVideosOverview(serverVideosOverview)),
catchError(err => this.restExtractor.handleError(err))
)
}
private updateVideosOverview (serverVideosOverview: VideosOverviewServer): Observable<VideosOverview> {
const observables: Observable<any>[] = []
const videosOverviewResult: VideosOverview = {
tags: [],
categories: [],
channels: []
}
// Build videos objects
for (const key of Object.keys(serverVideosOverview)) {
for (const object of serverVideosOverview[ key ]) {
observables.push(
of(object.videos)
.pipe(
switchMap(videos => this.videosService.extractVideos({ total: 0, data: videos })),
map(result => result.data),
tap(videos => {
videosOverviewResult[key].push(immutableAssign(object, { videos }))
})
)
)
}
}
if (observables.length === 0) return of(videosOverviewResult)
return forkJoin(observables)
.pipe(
// Translate categories
switchMap(() => {
return this.serverService.getServerLocale()
.pipe(
tap(translations => {
for (const c of videosOverviewResult.categories) {
c.category.label = peertubeTranslate(c.category.label, translations)
}
})
)
}),
map(() => videosOverviewResult)
)
}
}
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