Player.js

/*
 * @copyright Copyright (c) 2021 Jonas Heinrich <onny@project-insanity.org>
 *
 * @author Jonas Heinrich <onny@project-insanity.org>
 *
 * @license GNU AGPL version 3 or any later version
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 *
 */

import { Howl, Howler } from 'howler'
import { showError } from '@nextcloud/dialogs'
import store from './../store/main.js'

let audioPlayer = null

export class Player {

	doPlay(src) {

		if (audioPlayer !== null) {
			audioPlayer.fade(store.getters.getVolume, 0, 500)
			Howler.unload()
		} else {
			this.updateSeek()
		}

		audioPlayer = new Howl({
			src,
			html5: true,
			volume: store.getters.getVolume,
			onplay() {
				const duration = audioPlayer.duration()
				store.dispatch('setPlaying', true)
				store.dispatch('setBuffering', false)
				store.dispatch('setDuration', duration)

			},
			onpause() {
				store.dispatch('setPlaying', false)
				store.dispatch('setBuffering', false)
			},
			onend() {
				showError(t('podcast', 'Lost connection to podcast station, retrying ...'))
				store.dispatch('setPlaying', false)
				store.dispatch('setBuffering', true)
			},
		})
		audioPlayer.unload()
		audioPlayer.play()
		audioPlayer.fade(0, store.getters.getVolume, 500)

	}

	updateSeek() {
		const vm = this
		setTimeout(function() {
			if (audioPlayer !== null) {
				const seek = audioPlayer.seek()
				store.dispatch('setSeek', seek)
				vm.updateSeek()
			}
		}, 1000)
	}

	doPause() {
		audioPlayer.pause()
	}

	doResume() {
		audioPlayer.play()
	}

	seek(startTime) {
		audioPlayer.seek(startTime)
	}

	setVolume(volume) {
		if (audioPlayer !== null) {
			audioPlayer.volume(volume)
		}
	}

}