Current File : /www/varak.cloud/jamstash.varak.cloud/app/player/player-service.js
/**
* jamstash.player.service Module
*
* Manages the player and playing queue. Use it to play a song, go to next track or add songs to the queue.
*/
angular.module('jamstash.player.service', ['ngLodash'])
.factory('player', ['lodash', function (_) {
'use strict';
var playerVolume = 1.0;
var player = {
// playingIndex and playingSong aren't meant to be used, they only are public for unit-testing purposes
_playingIndex: -1,
_playingSong: undefined,
queue: [],
pauseSong: false,
restartSong: false,
loadSong: false,
settings: {
repeat: "none",
repeatValues: ["queue", "song", "none"]
},
play: function (song) {
// Find the song's index in the queue, if it's in there
var index = player.indexOfSong(song);
player._playingIndex = (index !== undefined) ? index : -1;
if (player._playingSong === song) {
// We call restart because the _playingSong hasn't changed and the directive won't
// play the song again
player.restart();
} else {
player._playingSong = song;
}
},
togglePause: function () {
if (player.pauseSong) {
player.pauseSong = false;
} else {
player.pauseSong = true;
}
},
playFirstSong: function () {
player._playingIndex = 0;
player.play(player.queue[0]);
},
load: function (song) {
player.loadSong = true;
player.play(song);
},
restart: function () {
player.restartSong = true;
},
// Called from the player directive at the end of the current song
songEnded: function () {
if (player.settings.repeat === "song") {
// repeat current track
player.restart();
} else if (player.isLastSongPlaying() === true) {
if (player.settings.repeat === "queue") {
// Loop to first track in queue
player.playFirstSong();
}
} else {
player.nextTrack();
}
},
nextTrack: function () {
// Find the song's index in the queue, in case it changed (with a drag & drop)
var index = player.indexOfSong(player._playingSong);
player._playingIndex = (index !== undefined) ? index : -1;
if ((player._playingIndex + 1) < player.queue.length) {
var nextTrack = player.queue[player._playingIndex + 1];
player._playingIndex++;
player.play(nextTrack);
}
},
previousTrack: function () {
// Find the song's index in the queue, in case it changed (with a drag & drop)
var index = player.indexOfSong(player._playingSong);
player._playingIndex = (index !== undefined) ? index : -1;
if ((player._playingIndex - 1) > 0) {
var previousTrack = player.queue[player._playingIndex - 1];
player._playingIndex--;
player.play(previousTrack);
} else if (player.queue.length > 0) {
player.playFirstSong();
}
},
emptyQueue: function () {
player.queue = [];
return player;
},
shuffleQueue: function () {
var shuffled = _.without(player.queue, player._playingSong);
shuffled = _.shuffle(shuffled);
if (player._playingSong !== undefined) {
shuffled.unshift(player._playingSong);
player._playingIndex = 0;
}
player.queue = shuffled;
return player;
},
addSong: function (song) {
player.queue.push(song);
return player;
},
addSongs: function (songs) {
player.queue = player.queue.concat(songs);
return player;
},
removeSong: function (song) {
var index = player.queue.indexOf(song);
player.queue.splice(index, 1);
return player;
},
removeSongs: function (songs) {
player.queue = _.difference(player.queue, songs);
return player;
},
reorderQueue: function (oldIndex, newIndex) {
if (oldIndex < 0 || oldIndex >= player.queue.length || newIndex < 0 || newIndex >= player.queue.length) {
return player;
}
var song = player.queue[oldIndex];
player.queue.splice(oldIndex, 1);
player.queue.splice(newIndex, 0, song);
return player;
},
getPlayingSong: function () {
return player._playingSong;
},
isLastSongPlaying: function () {
return ((player._playingIndex + 1) === player.queue.length);
},
indexOfSong: function (song) {
for (var i = player.queue.length - 1; i >= 0; i--) {
if (angular.equals(song, player.queue[i])) {
return i;
}
}
return undefined;
},
turnVolumeUp: function () {
var volume = playerVolume;
if ((volume + 0.1) > 1 || volume < 0) {
volume = 0.9;
}
volume += 0.1;
playerVolume = Math.round(volume * 100) / 100;
return volume;
},
turnVolumeDown: function () {
var volume = playerVolume;
if (volume > 1 || (volume - 0.1) < 0) {
volume = 0.1;
}
volume -= 0.1;
playerVolume = Math.round(volume * 100) / 100;
return volume;
},
getVolume: function () {
return playerVolume;
},
setVolume: function (volume) {
if (volume > 1) {
volume = 1;
} else if (volume < 0) {
volume = 0;
}
playerVolume = Math.round(volume * 100) / 100;
return player;
}
};
return player;
}]);
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