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import { Component, ElementRef, NgZone, OnDestroy, OnInit, ViewChild } from '@angular/core';
import { ActivatedRoute } from '@angular/router';
import { Subscription } from 'rxjs/Subscription';
import * as videojs from 'video.js';
import { MetaService } from 'ng2-meta';
import { NotificationsService } from 'angular2-notifications';
import { AuthService } from '../../core';
import { VideoMagnetComponent } from './video-magnet.component';
import { VideoShareComponent } from './video-share.component';
import { VideoReportComponent } from './video-report.component';
import { Video, VideoService } from '../shared';
import { WebTorrentService } from './webtorrent.service';
@Component({
selector: 'my-video-watch',
templateUrl: './video-watch.component.html',
styleUrls: [ './video-watch.component.scss' ]
})
export class VideoWatchComponent implements OnInit, OnDestroy {
private static LOADTIME_TOO_LONG: number = 20000;
@ViewChild('videoMagnetModal') videoMagnetModal: VideoMagnetComponent;
@ViewChild('videoShareModal') videoShareModal: VideoShareComponent;
@ViewChild('videoReportModal') videoReportModal: VideoReportComponent;
downloadSpeed: number;
error: boolean = false;
loading: boolean = false;
numPeers: number;
player: VideoJSPlayer;
playerElement: Element;
uploadSpeed: number;
video: Video = null;
videoNotFound = false;
private errorTimer: number;
private paramsSub: Subscription;
private errorsSub: Subscription;
private warningsSub: Subscription;
private torrentInfosInterval: number;
constructor(
private elementRef: ElementRef,
private ngZone: NgZone,
private route: ActivatedRoute,
private videoService: VideoService,
private metaService: MetaService,
private webTorrentService: WebTorrentService,
private authService: AuthService,
private notificationsService: NotificationsService
) {}
ngOnInit() {
this.paramsSub = this.route.params.subscribe(routeParams => {
let id = routeParams['id'];
this.videoService.getVideo(id).subscribe(
video => {
this.video = video;
this.setOpenGraphTags();
this.loadVideo();
},
error => {
this.videoNotFound = true;
}
);
});
this.playerElement = this.elementRef.nativeElement.querySelector('#video-container');
const videojsOptions = {
controls: true,
autoplay: false
};
const self = this;
videojs(this.playerElement, videojsOptions, function () {
self.player = this;
});
this.errorsSub = this.webTorrentService.errors.subscribe(err => this.notificationsService.error('Error', err.message));
this.warningsSub = this.webTorrentService.errors.subscribe(err => this.notificationsService.alert('Warning', err.message));
}
ngOnDestroy() {
// Remove WebTorrent stuff
console.log('Removing video from webtorrent.');
window.clearInterval(this.torrentInfosInterval);
window.clearTimeout(this.errorTimer);
if (this.video !== null) {
this.webTorrentService.remove(this.video.magnetUri);
}
// Remove player
videojs(this.playerElement).dispose();
// Unsubscribe subscriptions
this.paramsSub.unsubscribe();
this.errorsSub.unsubscribe();
this.warningsSub.unsubscribe();
}
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 = window.setTimeout(() => this.loadTooLong(), VideoWatchComponent.LOADTIME_TOO_LONG);
this.webTorrentService.add(this.video.magnetUri, (torrent) => {
// Clear the error timer
window.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].renderTo(this.playerElement, { autoplay: true }, (err) => {
if (err) {
this.notificationsService.error('Error', 'Cannot append the file in the video element.');
console.error(err);
}
});
this.runInProgress(torrent);
});
}
showReportModal(event: Event) {
event.preventDefault();
this.videoReportModal.show();
}
showShareModal() {
this.videoShareModal.show();
}
showMagnetUriModal(event: Event) {
event.preventDefault();
this.videoMagnetModal.show();
}
isUserLoggedIn() {
return this.authService.isLoggedIn();
}
private loadTooLong() {
this.error = true;
console.error('The video load seems to be abnormally long.');
}
private setOpenGraphTags() {
this.metaService.setTag('og:type', 'video');
this.metaService.setTag('og:title', this.video.name);
this.metaService.setTag('name', this.video.name);
this.metaService.setTag('og:description', this.video.description);
this.metaService.setTag('description', this.video.description);
this.metaService.setTag('og:image', this.video.thumbnailPath);
this.metaService.setTag('og:duration', this.video.duration);
this.metaService.setTag('og:site_name', 'PeerTube');
this.metaService.setTag('og:url', window.location.href);
this.metaService.setTag('url', window.location.href);
}
private runInProgress(torrent: any) {
// Refresh each second
this.torrentInfosInterval = window.setInterval(() => {
this.ngZone.run(() => {
this.downloadSpeed = torrent.downloadSpeed;
this.numPeers = torrent.numPeers;
this.uploadSpeed = torrent.uploadSpeed;
});
}, 1000);
}
}
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