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