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import { Component, ElementRef, OnDestroy, OnInit } from '@angular/core';
import { ActivatedRoute } from '@angular/router';
import { BytesPipe } from 'angular-pipes/src/math/bytes.pipe';
import { LoaderComponent, Video, VideoService } from '../shared';
import { WebTorrentService } from './webtorrent.service';
@Component({
selector: 'my-video-watch',
template: require('./video-watch.component.html'),
styles: [ require('./video-watch.component.scss') ],
providers: [ WebTorrentService ],
directives: [ LoaderComponent ],
pipes: [ BytesPipe ]
})
export class VideoWatchComponent implements OnInit, OnDestroy {
private static LOADTIME_TOO_LONG: number = 30000;
downloadSpeed: number;
error: boolean = false;
loading: boolean = false;
numPeers: number;
uploadSpeed: number;
video: Video;
private errorTimer: NodeJS.Timer;
private sub: any;
private torrentInfosInterval: NodeJS.Timer;
constructor(
private elementRef: ElementRef,
private route: ActivatedRoute,
private videoService: VideoService,
private webTorrentService: WebTorrentService
) {}
loadVideo() {
// Reset the error
this.error = false;
// We are loading the video
this.loading = true;
console.log('Adding ' + this.video.magnetUri + '.');
// The callback might never return if there are network issues
// So we create a timer to inform the user the load is abnormally long
this.errorTimer = setTimeout(() => this.loadTooLong(), VideoWatchComponent.LOADTIME_TOO_LONG);
this.webTorrentService.add(this.video.magnetUri, (torrent) => {
// Clear the error timer
clearTimeout(this.errorTimer);
// Maybe the error was fired by the timer, so reset it
this.error = false;
// We are not loading the video anymore
this.loading = false;
console.log('Added ' + this.video.magnetUri + '.');
torrent.files[0].appendTo(this.elementRef.nativeElement.querySelector('.embed-responsive'), (err) => {
if (err) {
alert('Cannot append the file.');
console.error(err);
}
});
// Refresh each second
this.torrentInfosInterval = setInterval(() => {
this.downloadSpeed = torrent.downloadSpeed;
this.numPeers = torrent.numPeers;
this.uploadSpeed = torrent.uploadSpeed;
}, 1000);
});
}
ngOnDestroy() {
console.log('Removing video from webtorrent.');
clearInterval(this.torrentInfosInterval);
this.webTorrentService.remove(this.video.magnetUri);
this.sub.unsubscribe();
}
ngOnInit() {
this.sub = this.route.params.subscribe(routeParams => {
let id = routeParams['id'];
this.videoService.getVideo(id).subscribe(
video => {
this.video = video;
this.loadVideo();
},
error => alert(error)
);
});
}
private loadTooLong() {
this.error = true;
console.error('The video load seems to be abnormally long.');
}
}
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