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import { catchError, map, of, tap } from 'rxjs'
import { HttpClient } from '@angular/common/http'
import { Injectable } from '@angular/core'
import { RestExtractor } from '@app/core'
import { VideoToken } from '@shared/models'
import { VideoService } from './video.service'
@Injectable()
export class VideoFileTokenService {
private readonly store = new Map<string, { token: string, expires: Date }>()
constructor (
private authHttp: HttpClient,
private restExtractor: RestExtractor
) {}
getVideoFileToken (videoUUID: string) {
const existing = this.store.get(videoUUID)
if (existing) return of(existing)
return this.createVideoFileToken(videoUUID)
.pipe(tap(result => this.store.set(videoUUID, { token: result.token, expires: new Date(result.expires) })))
}
private createVideoFileToken (videoUUID: string) {
return this.authHttp.post<VideoToken>(`${VideoService.BASE_VIDEO_URL}/${videoUUID}/token`, {})
.pipe(
map(({ files }) => files),
catchError(err => this.restExtractor.handleError(err))
)
}
}
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