107 lines
2.7 KiB
TypeScript
107 lines
2.7 KiB
TypeScript
import { Subject, Subscription, switchMap } from 'rxjs'
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import { Component, OnDestroy, OnInit } from '@angular/core'
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import { Notifier, ScreenService, User, UserService } from '@app/core'
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import { Video } from '@app/shared/shared-main'
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import { OverviewService } from './overview.service'
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import { VideosOverview } from './videos-overview.model'
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@Component({
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selector: 'my-video-overview',
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templateUrl: './video-overview.component.html',
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styleUrls: [ './video-overview.component.scss' ]
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})
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export class VideoOverviewComponent implements OnInit, OnDestroy {
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onDataSubject = new Subject<any>()
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overviews: VideosOverview[] = []
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notResults = false
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userMiniature: User
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private loaded = false
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private currentPage = 1
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private maxPage = 20
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private lastWasEmpty = false
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private isLoading = false
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private userSub: Subscription
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constructor (
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private notifier: Notifier,
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private userService: UserService,
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private overviewService: OverviewService,
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private screenService: ScreenService
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) { }
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ngOnInit () {
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this.loadMoreResults()
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this.userService.getAnonymousOrLoggedUser()
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.subscribe(user => this.userMiniature = user)
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this.userSub = this.userService.listenAnonymousUpdate()
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.pipe(switchMap(() => this.userService.getAnonymousOrLoggedUser()))
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.subscribe(user => {
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this.userMiniature = user
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this.overviews = []
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this.loadMoreResults()
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})
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}
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ngOnDestroy () {
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if (this.userSub) this.userSub.unsubscribe()
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}
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buildVideoChannelBy (object: { videos: Video[] }) {
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return object.videos[0].byVideoChannel
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}
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buildVideoChannel (object: { videos: Video[] }) {
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return object.videos[0].channel
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}
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buildVideos (videos: Video[]) {
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const numberOfVideos = this.screenService.getNumberOfAvailableMiniatures()
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return videos.slice(0, numberOfVideos * 2)
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}
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onNearOfBottom () {
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if (this.currentPage >= this.maxPage) return
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if (this.lastWasEmpty) return
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if (this.isLoading) return
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this.currentPage++
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this.loadMoreResults()
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}
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private loadMoreResults () {
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this.isLoading = true
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this.overviewService.getVideosOverview(this.currentPage)
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.subscribe({
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next: overview => {
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this.isLoading = false
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if (overview.tags.length === 0 && overview.channels.length === 0 && overview.categories.length === 0) {
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this.lastWasEmpty = true
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if (this.loaded === false) this.notResults = true
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return
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}
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this.loaded = true
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this.onDataSubject.next(overview)
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this.overviews.push(overview)
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},
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error: err => {
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this.notifier.error(err.message)
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this.isLoading = false
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}
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})
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}
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}
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