var MediaPlayer = {

	testableAudioElement: document.createElement('audio'),
	testableVideoElement: document.createElement('video'),

	canPlay: function (item) {

		if (item.MediaType === "Video") {

			var media = MediaPlayer.testableVideoElement;

			if (media.canPlayType) {

				return media.canPlayType('video/mp4').replace(/no/, '') || media.canPlayType('video/mp2t').replace(/no/, '') || media.canPlayType('video/webm').replace(/no/, '') || media.canPlayType('application/x-mpegURL').replace(/no/, '') || media.canPlayType('video/ogv').replace(/no/, '');
			}

			return false;
		}

		if (item.MediaType === "Audio") {

			var media = MediaPlayer.testableAudioElement;

			if (media.canPlayType) {

				return media.canPlayType('audio/mpeg').replace(/no/, '') || media.canPlayType('audio/webm').replace(/no/, '') || media.canPlayType('audio/aac').replace(/no/, '') || media.canPlayType('audio/ogg').replace(/no/, '');
			}

			return false;
		}

		return false;
	},

	play: function (items, startPosition) {

		if (MediaPlayer.isPlaying()) {
			MediaPlayer.stop();
		}

		var item = items[0];

		var mediaElement;

		if (item.MediaType === "Video") {

			mediaElement = MediaPlayer.playVideo(items, startPosition);
		}

		else if (item.MediaType === "Audio") {

			mediaElement = MediaPlayer.playAudio(items);
		}

		if (!mediaElement) {
			return;
		}

		MediaPlayer.mediaElement = mediaElement;

		var nowPlayingBar = $('#nowPlayingBar').show();

		if (items.length > 1) {
			$('#previousTrackButton', nowPlayingBar)[0].disabled = false;
			$('#nextTrackButton', nowPlayingBar)[0].disabled = false;
		} else {
			$('#previousTrackButton', nowPlayingBar)[0].disabled = true;
			$('#nextTrackButton', nowPlayingBar)[0].disabled = true;
		}

		//display image and title
		var imageTags = item.ImageTags || {};
		var html = '';

		var url = "";

		if (item.BackdropImageTags && item.BackdropImageTags.length) {

			url = ApiClient.getImageUrl(item.Id, {
				type: "Backdrop",
				height: 36,
				tag: item.BackdropImageTags[0]
			});
		}
		else if (imageTags.Thumb) {

			url = ApiClient.getImageUrl(item.Id, {
				type: "Thumb",
				height: 36,
				tag: item.ImageTags.Thumb
			});
		}
		else if (imageTags.Primary) {

			url = ApiClient.getImageUrl(item.Id, {
				type: "Primary",
				height: 36,
				tag: item.ImageTags.Primary
			});
		} else {
			url = "css/images/items/detail/video.png";
		}

		var name = item.Name;
		var series_name = '';

		if (item.IndexNumber != null) {
			name = item.IndexNumber + " - " + name;
		}
		if (item.ParentIndexNumber != null) {
			name = item.ParentIndexNumber + "." + name;
		}
		if (item.SeriesName || item.Album || item.ProductionYear) {
			series_name = item.SeriesName || item.Album || item.ProductionYear;
		}

		html += "<div><img class='nowPlayingBarImage ' alt='' title='' src='" + url + "' style='height:36px;display:inline-block;' /></div>";
		if (item.Type == "Movie")
			html += '<div>' + name + '<br/>' + series_name + '</div>';
		else
			html += '<div>' + series_name + '<br/>' + name + '</div>';

		$('#mediaInfo', nowPlayingBar).html(html);
	},

	playAudio: function (items, params) {
		var item = items[0];

		var baseParams = {
			audioChannels: 2,
			audioBitrate: 128000
		};

		$.extend(baseParams, params);

		var mp3Url = ApiClient.getUrl('Audio/' + item.Id + '/stream.mp3', $.extend({}, baseParams, {
			audioCodec: 'mp3'
		}));

		var aacUrl = ApiClient.getUrl('Audio/' + item.Id + '/stream.aac', $.extend({}, baseParams, {
			audioCodec: 'aac'
		}));

		var webmUrl = ApiClient.getUrl('Audio/' + item.Id + '/stream.webm', $.extend({}, baseParams, {
			audioCodec: 'Vorbis'
		}));

		/* ffmpeg always says the ogg stream is corrupt after conversion
		 var oggUrl = ApiClient.getUrl('Audio/' + item.Id + '/stream.oga', $.extend({}, baseParams, {
		 audioCodec: 'Vorbis'
		 }));
		 */

		var html = '';
		html += '<audio class="itemAudio" preload="none" controls autoplay>';
		html += '<source type="audio/mpeg" src="' + mp3Url + '" />';
		html += '<source type="audio/aac" src="' + aacUrl + '" />';
		html += '<source type="audio/webm" src="' + webmUrl + '" />';
		//html += '<source type="audio/ogg" src="' + oggUrl + '" />';
		html += '</audio';

		var nowPlayingBar = $('#nowPlayingBar').show();
		//show stop button
		$('#stopButton', nowPlayingBar).show();

		$('#mediaElement', nowPlayingBar).html(html);

		return $('audio', nowPlayingBar)[0];
	},

	playVideo: function (items, startPosition) {
		//stop/kill videoJS
		if (MediaPlayer.mediaElement) MediaPlayer.stop();

		var item = items[0];

		// Account for screen rotation. Use the larger dimension as the width.
		var screenWidth = Math.max(screen.height, screen.width);
		var screenHeight = Math.min(screen.height, screen.width);

		var volume = localStorage.getItem("volume") || 0.5;

		var baseParams = {
			audioChannels: 2,
			audioBitrate: 128000,
			videoBitrate: 1500000,
			maxWidth: screenWidth,
			maxHeight: screenHeight,
			StartTimeTicks: 0
		};

		if (typeof (startPosition) != "undefined") {
			baseParams['StartTimeTicks'] = startPosition;
		}

		var html = '<video id="videoWindow" class="itemVideo video-js vjs-default-skin"></video>';

		var nowPlayingBar = $('#nowPlayingBar');
		//hide stop button
		$('#stopButton', nowPlayingBar).hide();

		$('#mediaElement', nowPlayingBar).addClass("video").html(html).show();

		_V_("videoWindow", { 'controls': true, 'autoplay': true, 'preload': 'auto' }, function () {

			var mp4VideoUrl = ApiClient.getUrl('Videos/' + item.Id + '/stream.mp4', $.extend({}, baseParams, {
				videoCodec: 'h264',
				audioCodec: 'aac'
			}));

			var tsVideoUrl = ApiClient.getUrl('Videos/' + item.Id + '/stream.ts', $.extend({}, baseParams, {
				videoCodec: 'h264',
				audioCodec: 'aac'
			}));

			var webmVideoUrl = ApiClient.getUrl('Videos/' + item.Id + '/stream.webm', $.extend({}, baseParams, {
				videoCodec: 'vpx',
				audioCodec: 'Vorbis'
			}));

			var hlsVideoUrl = ApiClient.getUrl('Videos/' + item.Id + '/stream.m3u8', $.extend({}, baseParams, {
				videoCodec: 'h264',
				audioCodec: 'aac'
			}));

			var ogvVideoUrl = ApiClient.getUrl('Videos/' + item.Id + '/stream.ogv', $.extend({}, baseParams, {
				videoCodec: 'theora',
				audioCodec: 'Vorbis'
			}));

			(this).src([{ type: "video/webm", src: webmVideoUrl },
				{ type: "video/mp4", src: mp4VideoUrl },
				{ type: "video/mp2t; codecs='h264, aac'", src: tsVideoUrl },
				{ type: "application/x-mpegURL", src: hlsVideoUrl },
				{ type: "video/ogg", src: ogvVideoUrl }]
			).volume(volume);

			videoJSextension.setup_video($('#videoWindow'), item);

			(this).addEvent("loadstart", function () {
				$(".vjs-remaining-time-display").hide();
			});

			(this).addEvent("durationchange", function () {
				if ((this).duration() != "Infinity")
					$(".vjs-remaining-time-display").show();
			});

			(this).addEvent("volumechange", function () {
				localStorage.setItem("volume", (this).volume());
			});

			(this).addEvent("play", MediaPlayer.updateProgress);

			ApiClient.reportPlaybackStart(Dashboard.getCurrentUserId(), item.Id);
		});

		return $('video', nowPlayingBar)[0];
	},

	stop: function () {

		var elem = MediaPlayer.mediaElement;

		//check if it's a video using VideoJS
		if ($(elem).hasClass("vjs-tech")) {
			var player = _V_("videoWindow");

			var startTimeTicks = player.tag.src.match(new RegExp("StartTimeTicks=[0-9]+", "g"));
			var start_time = startTimeTicks[0].replace("StartTimeTicks=", "");

			var item_string = player.tag.src.match(new RegExp("Videos/[0-9a-z\-]+", "g"));
			var item_id = item_string[0].replace("Videos/", "");

			var positionTicks = parseInt(start_time) + Math.floor(10000000 * player.currentTime());

			ApiClient.reportPlaybackStopped(Dashboard.getCurrentUserId(), item_id, positionTicks);

			clearTimeout(progressInterval);

			if (player.techName == "html5") {
				player.tag.src = "";
				player.tech.removeTriggers();
				player.load();
			}
			//player.tech.destroy();
			player.destroy();
		} else {
			elem.pause();
			elem.src = "";
		}

		$(elem).remove();

		$('#nowPlayingBar').hide();

		MediaPlayer.mediaElement = null;
	},

	isPlaying: function () {
		return MediaPlayer.mediaElement;
	},

	updateProgress: function () {
		progressInterval = setInterval(function () {
			var player = _V_("videoWindow");

			var startTimeTicks = player.tag.src.match(new RegExp("StartTimeTicks=[0-9]+", "g"));
			var start_time = startTimeTicks[0].replace("StartTimeTicks=", "");

			var item_string = player.tag.src.match(new RegExp("Videos/[0-9a-z\-]+", "g"));
			var item_id = item_string[0].replace("Videos/", "");

			var positionTicks = parseInt(start_time) + Math.floor(10000000 * player.currentTime());

			ApiClient.reportPlaybackProgress(Dashboard.getCurrentUserId(), item_id, positionTicks);
		}, 30000);
	}

};