var videoPlayerScriptLoaded = false;
var viewSongs = null;
var videoPlayer = null;
var videoPlayerMaxHeight = 400;
var videoPlayerMinHeight = 50;
var videoWindow = null;
var videoPlayerDuration = 5*60;
var videoWindowInterval = null;
var hrefPlayInterval = null;
var hrefPlayIntervalRetry = 0;
var videoWindowTimeout = null;
var playSeekProcessTimeout = null;
var refreshSongIng = 0;

// 目前正在播放的歌曲
var nowPlaySongVideoId = null;
var nowPlaySongSongId = null;
var nowPlaySongPrevVideoId = null;

// 0 單曲重覆, 1 列表循環, 2 隨機播放, 3 電台
var videoPlayerMode = 0;
var videoPlayerPrevMode = -1;

// 0 是隱藏, 1 是顯示, 2 in popup window
var videoPlayerStatus = 0;
var videoPlayerPrevStatus = -1;

function view_songs_message() {
	showLoading('歌曲讀取..');
}

function view_songs_video_empty() {
	for (var i = viewSongs.length - 1; i >= 0; i--) {
		if(viewSongs[i]['videoId'] != '' || viewSongs[i]['cronStatus'] == '1')
		{
			return true;
		}
	};

	return false;
}

function view_songs_data() {
	if(!viewSongs)
	{
		return false;
	}
	return viewSongs;
}

function view_songs(from, singerId, channelCode, albumId, singerType, fromType, pageNo, perPage) {
	if(viewSongs)
	{
		return viewSongs;
	}

	setTimeout(function(){
		view_songs_message();
	}, 1);

	// 取得每頁需要的歌曲
	var baseUri = '/players/view_songs';
	$.ajax({
		type: 'GET',
		headers: {"cache-control": "no-cache"},
		url: baseUri + '?rand=' + new Date().getTime(),
		async: true,
		cache: false,
		dataType : "json",
		data: {
			from: from,
			singer_id: singerId,
			channel_code: channelCode,
			album_id: albumId,
			singer_type: singerType,
			from_type: fromType,
			page_no: pageNo,
			per_page: perPage,
		},
		success: function(response)
		{
			setTimeout(function(){
				hideLoading();

				if(response.status)
				{
					viewSongs = response.view_songs;

					// 網址有帶 song_id 就立即播放
					if(typeof hrefPlay != 'undefined' && hrefPlay == '1')
					{
						hrefPlayInterval = setInterval(function() {
							if(videoPlayerScriptLoaded)
							{
								playSong(hrefPlayVideoId, hrefPlaySongId);
								clearInterval(hrefPlayInterval);
							}
							else if(hrefPlayIntervalRetry > 5)
							{
								clearInterval(hrefPlayInterval);
							}

							hrefPlayIntervalRetry++;
						}, 500);
					}
					else if(typeof autoPlayAlbum != 'undefined' && autoPlayAlbum == '1')
					{
						if(view_songs_video_empty())
						{
							playAllAlbum();
						}
					}
					else if(typeof autoPlaySong != 'undefined' && autoPlaySong == '1')
					{
						if(view_songs_video_empty())
						{
							playAllSong();
						}
					}
					else if(typeof hrefPlay != 'undefined' && hrefPlay == '2')
					{
						showLoading('目前沒有歌曲的影片..', 1000);
					}
				}
				else
				{
					showLoading(response.message, 1000);
				}
			}, 1);
		},
		error: function(XMLHttpRequest, textStatus, errorThrown) {
			setTimeout(function(){
				hideLoading();
			}, 1);
		}
	});  

	return false; 
}

function addCustomSongPopupProcess(videoId, songId) {
	addSong(songId, videoId);
}

function customSongPopupProcess(videoId, channelId, songId) {
	// show message
	showLoading('更換影片..');

	var baseUri = '/players/process_custom_song';
	$.ajax({
		type: 'GET',
		headers: { "cache-control": "no-cache" },
		url: baseUri + '?rand=' + new Date().getTime(),
		async: true,
		cache: false,
		dataType : "json",
		data: {
			song_id: songId,
			channel_id: channelId,
			video_id: videoId,
		},
		success: function(response)
		{
			// hide message
			hideLoading();

			// add song tr
			if(response.status)
			{
				update_view_song(response.song_id, response.song_name, response.singer_display_name, response.video_id, response.album_name, response.singer_id, response.duration, response.cron_status, response.start_seconds, response.end_seconds);
				// update_view_tr(response.song_id, response.song_name, response.singer_display_name, response.video_id, response.album_name, response.singer_id, response.duration, channelId, response.album_id);
				update_view_card(response.song_id, response.song_name, response.singer_display_name, response.video_id, response.album_name, response.singer_id, response.duration, channelId, response.album_id, response.song_title, response.song_description, response.song_url, response.site_url);
			}
			else
			{
				showLoading(response.message, 1000);
			}
		},
		error: function(XMLHttpRequest, textStatus, errorThrown) {
			hideLoading();
		}
	});

	return false;
}


function addCustomSongPopup() {
	$("#popupAddCustomSong").popup("open");
}

function addCustomSong(songId) {
	var $customSongIframe = $('#popupAddCustomSongIframe');
	if($customSongIframe.length > 0 && $customSongIframe[0].contentWindow && typeof $customSongIframe[0].contentWindow.addCustomSong == 'function')
	{
		$('#popupAddCustomSongIframe')[0].contentWindow.addCustomSong(songId);
		
	}
	return false;
}

function customSongPopup() {
	$("#popupCustomSong").popup("open");
}

function customSong(songId, channelId, popupSelecter) {
	if(popupSelecter)
	{
		$(popupSelecter).popup('close');
	}

	var $customSongIframe = $('#popupCustomSongIframe');
	if($customSongIframe.length > 0 && $customSongIframe[0].contentWindow && typeof $customSongIframe[0].contentWindow.customSong == 'function')
	{
		$('#popupCustomSongIframe')[0].contentWindow.customSong(songId, channelId);
		
	}
	return false;
}

function getIndexByVideoId(videoId) {
	if(view_songs_data() == false)
	{
		return -1;
	}

	for (var i = 0; i < viewSongs.length; i++) {
		if(viewSongs[i].videoId == videoId)
		{
			return i;
		}
	};
	return -1;
}

function getIndexBySongId(songId) {
	if(view_songs_data() == false)
	{
		return -1;
	}

	for (var i = 0; i < viewSongs.length; i++) {
		if(viewSongs[i].id == songId)
		{
			return i;
		}
	};
	return -1;
}

function checkVideoWindow() {
    if (videoWindow && videoWindow.closed) {
        closeVideoWindow();
        runNextVideo();
    }
}

function closeVideoWindow()
{	
	// clear timer
	clearInterval(videoWindowInterval);
    clearTimeout(videoWindowTimeout);

    // close window
	if(videoWindow && !videoWindow.closed)
	{
		videoWindow.close();
	}

	videoWindow = null;	
}

function runVideoWindow(videoId) {
	if(view_songs_data() == false)
	{
		return false;
	}

	// 關掉原本的 window
	closeVideoWindow();

	// open window
	videoPlayerStatus = 2;
	videoUrl = "https://www.youtube.com/watch?v="+videoId+"&loop=1";
 	videoWindow = window.open(videoUrl, "", "width=500, height=450");

 	// 檢查是否被關閉 timer
 	videoWindowInterval = setInterval(checkVideoWindow, 500);

	// 播完後關閉
	var songIndex = getIndexByVideoId(videoId);
	if(songIndex != -1)
	{
		closeSec = viewSongs[songIndex]['duration'];
	}
	else
	{
		closeSec = videoPlayerDuration;
	}

	videoWindowTimeout = setTimeout(function(){ 
		closeVideoWindow();
		runNextVideo();
	}, closeSec*1000);
}

function runVideo(videoId, songId, direction) {
	closeVideoWindow();

	if(!videoId)
	{
		var songIndex = getIndexBySongId(songId);
		var viewSong = viewSongs[songIndex];

		if(refreshSongIng == 1)
		{
			return false;
		}

		// 這個 video 跑過 cron 但找不到 video 則跑下一個，不用去 refresh
		if(viewSong['cronStatus'] == '1')
		{
			refreshSong(songId, direction);
		}
		else
		{
			if(direction == '0')
			{
				runPrevVideo();
			}
			else
			{
				runNextVideo();
			}
		}
		return false;
	}

	if(view_songs_data() == false)
	{
		return false;
	}

	if (typeof(YT) == 'undefined' || typeof(YT.Player) == 'undefined') {
	  	return false;
	}

	// nowPlaySongVideoId = videoId;
	// nowPlaySongSongId = songId;

	if(!videoPlayerScriptLoaded && typeof(YT) == 'undefined')
	{
		return false;
	}
	else
	{
	}

	// create player
	if(!videoPlayer)
	{
		videoPlayer = new YT.Player('videoPlayer', {
		  videoId: videoId,
		  events: {
		    'onReady': onVideoReady,
		    'onStateChange': onVideoStateChange,
		    'onError': onVideoError
		  }
		});
	}
	// load video
	else
	{
		videoPlayer.loadVideoById(videoId);

		var songIndex = getIndexBySongId(songId);
		var song = viewSongs[songIndex];
		playSeekStart(song.startSeconds);
		renderPlaySeek(song.id);
	}

	renderVideoPlayer();
	renderVideoTitle();
}

function runPrevVideo() {
	closeVideoWindow();

	if(view_songs_data() == false)
	{
		return false;
	}

	if(videoPlayerMode == 3)
	{
		broadSong();
		return false;
	}

	var songIndex = getIndexBySongId(nowPlaySongSongId);
	if(songIndex == -1 && viewSongs.length > 0)
	{
		nowPlaySongVideoId = viewSongs[0]['videoId'];
		nowPlaySongSongId = viewSongs[0]['id'];
		runVideo(nowPlaySongVideoId, nowPlaySongSongId, '0');
		return false;
	}

	// 全部播放
	if(videoPlayerMode == 1)
	{
		if(songIndex == 0)
		{
			nowPlaySongVideoId = viewSongs[viewSongs.length -1]['videoId'];
			nowPlaySongSongId = viewSongs[viewSongs.length-1]['id'];
		}
		else
		{
			nowPlaySongVideoId = viewSongs[songIndex-1]['videoId'];
			nowPlaySongSongId = viewSongs[songIndex-1]['id'];
		}

		runVideo(nowPlaySongVideoId, nowPlaySongSongId, '0');
	}
	// 重覆播放 
	else if(videoPlayerMode == 0)
	{
		runVideo(nowPlaySongVideoId, nowPlaySongSongId, '0');
	}
}

function runNextVideo() {
	closeVideoWindow();

	if(view_songs_data() == false)
	{
		return false;
	}

	if(videoPlayerMode == 3)
	{
		broadSong();
		return;
	}

	// 如果所有歌曲都沒 video 則不再 run 下一個
	if(!view_songs_video_empty())
	{
		showLoading('沒有找到歌曲', 1000);
		return;
	}

	var songIndex = getIndexBySongId(nowPlaySongSongId);
	if(songIndex == -1 && viewSongs.length > 0)
	{
		nowPlaySongVideoId = viewSongs[0]['videoId'];
		nowPlaySongSongId = viewSongs[0]['id'];
		runVideo(nowPlaySongVideoId, nowPlaySongSongId);
		return;
	}

	// 全部播放
	if(videoPlayerMode == 1)
	{
		if(songIndex+1 >= viewSongs.length)
		{
			nowPlaySongVideoId = viewSongs[0]['videoId'];
			nowPlaySongSongId = viewSongs[0]['id'];
		}
		else
		{
			nowPlaySongVideoId = viewSongs[songIndex+1]['videoId'];
			nowPlaySongSongId = viewSongs[songIndex+1]['id'];
		}

		runVideo(nowPlaySongVideoId, nowPlaySongSongId);
	}
	// 重覆播放 
	else if(videoPlayerMode == 0)
	{
		runVideo(nowPlaySongVideoId, nowPlaySongSongId);
	}

}

function playAddCustomSong(songId, popupSelecter) {
	if(!nowPlaySongSongId && !songId)
	{
		showLoading('你還沒播放任何歌曲無法加入歌單..', 1000);
		return false;
	}

	if(popupSelecter)
	{
		$(popupSelecter).popup('close');
	}

	if(songId)
	{
		addCustomSong(songId);
	}
	else
	{
		addCustomSong(nowPlaySongSongId);
	}
	return false;
}

function playAddSong(songId) {
	if(!nowPlaySongSongId && !songId)
	{
		showLoading('你還沒播放任何歌曲無法加入歌單..', 1000);
		return false;
	}
	
	if(songId)
	{
		addSong(songId);
	}
	else
	{
		addSong(nowPlaySongSongId);
	}
	return false;
}

function playSeekStart(seconds) {
	if(!videoPlayer)
	{
		return false;
	}

	videoPlayer.seekTo(parseInt(seconds));
}

function playSeekProcess(startSeconds, songId, channelId) {
	clearTimeout(playSeekProcessTimeout);

	if(!videoPlayer)
	{
		return false;
	}

	if(!songId)
	{
		return false;
	}

	// 預先記錄 start second
	var songIndex = getIndexBySongId(songId);
	var song = viewSongs[songIndex];
	var endSeconds = getEndSeconds(song);
	update_view_song(song.id, song.name, song.singerDisplayName, song.videoId, song.albumName, song.singerId, song.duration, song.cronStatus, startSeconds, endSeconds);

	playSeekProcessTimeout = setTimeout(function(){
		var baseUri = '/players/process_seek';
		$.ajax({
			type: 'GET',
			headers: { "cache-control": "no-cache" },
			url: baseUri + '?rand=' + new Date().getTime(),
			async: true,
			cache: false,
			dataType : "json",
			data: {
				start_seconds: startSeconds,
				song_id: songId,
				channel_id: channelId,
			},
			success: function(response)
			{
				if(!response.status)
				{
					showLoading(response.message, 1000);
				}
			},
			error: function(XMLHttpRequest, textStatus, errorThrown) {
			}
		});
	}, 500);
}

function playNextSong() {
	videoPlayerMode = 1;
	runNextVideo();
	return false;
}

function playPrevSong() {
	videoPlayerMode = 1;
	runPrevVideo();
	return false;
}

function playRepeatSong() {
	if(view_songs_data() == false)
	{
		return false;
	}
	
	var songIndex = 0;
	if(nowPlaySongSongId)
	{
		songIndex = getIndexBySongId(nowPlaySongSongId);
	}

	var song = viewSongs[songIndex];
	nowPlaySongVideoId = song['videoId'];
	nowPlaySongSongId = song['id'];
	repeatSong(nowPlaySongVideoId, nowPlaySongSongId);
	return false;
}

function playSingerCategory(popupSelecter) {
	if(popupSelecter)
	{
		$(popupSelecter).popup('close');
	}
	$('#popupSingerCategory').popup('open');
	return false;
}

function playShareSong(popupSelecter, siteUrl, songId) {
	if(!nowPlaySongSongId && !songId)
	{
		showLoading('你還沒播放任何歌曲無法分享..', 1000);
		return false;
	}

	if(popupSelecter)
	{
		$(popupSelecter).popup('close');
	}

	var concat = '';
	if(siteUrl.search(/\?/) != -1)
	{
		concat = '&';
	}
	else
	{
		concat = '?';
	}

	var songUrl = '';
	if(songId)
	{
		songUrl = siteUrl + concat + 'song_id=' + songId;
	}
	else
	{
		songUrl = siteUrl + concat + 'song_id=' + nowPlaySongSongId;
	}
	
	$('#shareUrl').val(songUrl);
	$('#shareUrl').unbind('click').on("click", function () {
	   $(this).select();
	});
	$('#popupShareSong').popup('open');
}

function playAllAlbum()
{
	if(view_songs_data() == false)
	{
		return false;
	}

	videoPlayerMode = 1;
	if(viewSongs.length > 0)
	{
		nowPlaySongVideoId = viewSongs[0]['videoId'];
		nowPlaySongSongId = viewSongs[0]['id'];
		runVideo(nowPlaySongVideoId, nowPlaySongSongId);
	}
	return false;
}

function playAllSong() {
	if(view_songs_data() == false)
	{
		return false;
	}

	videoPlayerMode = 1;
	if(viewSongs.length > 0)
	{
		nowPlaySongVideoId = viewSongs[0]['videoId'];
		nowPlaySongSongId = viewSongs[0]['id'];
		runVideo(nowPlaySongVideoId, nowPlaySongSongId);
	}
	return false;
}

function playSong(videoId, songId) {
	showLoading('播放..', 1000);
	closeVideoWindow();
	videoPlayerMode = 1;
	var songIndex = getIndexBySongId(songId);
	var song = viewSongs[songIndex];
	nowPlaySongVideoId = videoId;
	nowPlaySongSongId = songId;
	runVideo(videoId, songId);
	return false;
}

function update_view_card(songId, songName, singerDisplayName, videoId, albumName, singerId, duration, channelId, albumId, songTitle, songDescription, songUrl, siteUrl) {
	var newCard = '<div class="ui-grid-solo song_'+songId+' video_'+videoId+' singer_'+singerId+'">';
		newCard += '<div class="ui-block-a">';
	    newCard += '<div class="ui-card">';
	    newCard += '<div class="ui-card-content">';
	    newCard += '<img src="'+songUrl+'" style="max-width:450px;width:100%;padding-right:20px;padding-bottom:20px;" align="left">';
	    newCard += '<span class="ui-card-title"><a data-ajax="false" href="/songs/lists?album_id='+albumId+'">'+songName+'</a></span>';
	    newCard += '<p>'+songDescription+'</p>';
	    newCard += '</div>';
	    newCard += '<div class="ui-card-action">';
		newCard += '<a href="#" class="ui-btn ui-btn-f ui-btn-inline ui-clear" onclick="playSong(\''+videoId+'\', \''+songId+'\');">播放</a>';
		newCard += '<a href="#" class="ui-btn ui-btn-f ui-btn-inline ui-clear" onclick="repeatSong(\''+videoId+'\', \''+songId+'\');">連播</a>';
		newCard += '<a href="#" class="ui-btn ui-btn-f ui-btn-inline ui-clear" onclick="deleteSong(\''+songId+'\', \''+channelId+'\');">刪除</a>';
		newCard += '<a href="#" class="ui-btn ui-btn-f ui-btn-inline ui-clear" onclick="moreSong(\''+songId+'\', \''+channelId+'\', \''+siteUrl+'songs/lists'+'\', \''+songId+'\', this);">更多</a>';
	    newCard += '</div>';
	    newCard += '</div>';
	    newCard += '</div>';
	    newCard += '</div>';

	var $oldCard = $('.song_'+songId);
	var $newCard = $(newCard);
	$oldCard.replaceWith($newCard);
}

function update_view_tr(songId, songName, singerDisplayName, videoId, albumName, singerId, duration, channelId, albumId) {
	var newTr = '<tr class="song_'+songId+' video_'+videoId+' singer_'+singerId+'">';
	newTr += '<td><a href="/albums/lists?singer_id='+singerId+'" data-ajax="false">'+singerDisplayName+'</a></td>';
	newTr += '<td><a href="/songs/lists?album_id='+albumId+'" data-ajax="false">'+albumName+'</a></td>';
	newTr += '<td><a href="#" onclick="playSong(\''+videoId+'\', \''+songId+'\');" class="ui-link waves-effect waves-button waves-effect waves-button">'+songName+'</a></td>';
	newTr += '<td><a href="#" onclick="playSong(\''+videoId+'\', \''+songId+'\');" class="ui-link waves-effect waves-button waves-effect waves-button">播放</a></td>';
	newTr += '<td><a href="#" onclick="repeatSong(\''+videoId+'\', \''+songId+'\');" class="ui-link waves-effect waves-button waves-effect waves-button">連播</a></td>';
	newTr += '<td><a href="#" onclick="deleteSong(\''+songId+'\', \''+channelId+'\');" class="ui-link waves-effect waves-button waves-effect waves-button">刪除</a></td>';
	newTr += '<td><a href="#" onclick="customSong(\''+songId+'\', \''+channelId+'\');" class="ui-link waves-effect waves-button waves-effect waves-button">自訂影片</a></td>';
	newTr += '</tr>';

	var $oldTr = $('.song_'+songId);
	var $newTr = $(newTr);
	$oldTr.replaceWith($newTr);
	// $("#channelTable").table("refresh");
}

function remove_view_card(songId) {
	$('.song_'+songId).remove();
}

function remove_view_tr(songId) {
	$('.song_'+songId).remove();
}

function remove_view_song(songId) {
	var songIndex = getIndexBySongId(songId);
	if(songIndex == -1)
	{
		return false;
	}
	viewSongs.removeByIndex(songIndex);
}

function update_view_song(songId, songName, singerDisplayName, videoId, albumName, singerId, duration, cronStatus, startSeconds, endSeconds) {
	var song = {}; 
	song['id'] = songId;
	song['name'] = songName;
	song['singerDisplayName'] = singerDisplayName;
	song['videoId'] = videoId;
	song['albumName'] = albumName;
	song['singerId'] = singerId;
	song['duration'] = duration;
	song['cronStatus'] = cronStatus;

	// 目前在 channel 頁才會傳 seconds
	if(startSeconds)
	{
		song['startSeconds'] = startSeconds;
	}

	if(endSeconds)
	{
		song['endSeconds'] = endSeconds;
	}

	// 已存在就更新，不存在就新增
	var songIndex = getIndexBySongId(songId);
	if(songIndex == -1)
	{
		viewSongs.push(song);
	}
	else
	{
		viewSongs[songIndex] = song;
	}
}

function refreshSong(songId, direction) {
	// 找不到歌曲
	var songIndex = getIndexBySongId(songId);
	if(songIndex == -1)
	{
		return false;
	}

	// 沒有歌曲資料
	if(view_songs_data() == false)
	{
		return false;
	}

	refreshSongIng = 1;

	// 讀取歌曲
	showLoading('讀取歌曲..');
	var baseUri = '/songs/refresh';
	$.ajax({
		type: 'GET',
		headers: {"cache-control": "no-cache"},
		url: baseUri + '?rand=' + new Date().getTime(),
		async: true,
		cache: false,
		dataType : "json",
		data: {
			song_id: songId,
		},
		success: function(response)
		{
			refreshSongIng = 0;

			// 隱藏 loading
			hideLoading();
			
			// 找到 or 沒找到影片都要更新 cron_status
			update_view_song(response.id, response.name, response.singer_display_name, response.video_id, response.album_name, response.singer_id, response.duration, response.cron_status);
			
			if(response.status)
			{
				nowPlaySongVideoId = response.video_id;
				nowPlaySongSongId = response.id;
				runVideo(response.video_id, response.id);
			}
			else
			{
				if(direction == '0')
				{
					runPrevVideo();
				}
				else
				{
					runNextVideo();
				}
			}
		},
		error: function(XMLHttpRequest, textStatus, errorThrown) {
			hideLoading();
		}
	}); 
}

function repeatSong(videoId, songId) {
	showLoading('連續播放..', 1000);
	closeVideoWindow();
	videoPlayerMode = 0;
	var songIndex = getIndexBySongId(songId);
	var song = viewSongs[songIndex];
	nowPlaySongVideoId = videoId;
	nowPlaySongSongId = songId;
	runVideo(videoId, songId);
	return false;
}

function deleteSong(songId, channelId) {
	if(!songId)
	{
		return false;
	}

	// 刪除歌曲
	showLoading('刪除歌曲..');
	var baseUri = '/players/delete_song';
	$.ajax({
		type: 'GET',
		headers: { "cache-control": "no-cache" },
		url: baseUri + '?rand=' + new Date().getTime(),
		async: true,
		cache: false,
		dataType : "json",
		data: {
			song_id: songId,
			channel_id: channelId,
		},
		success: function(response)
		{
			hideLoading();

			if(response.status)
			{
				// remove_view_song(songId);
				// remove_view_card(songId);
				location.reload();
			}
			else
			{
				showLoading(response.message, 1000);
			}
		},
		error: function(XMLHttpRequest, textStatus, errorThrown) {
			hideLoading();
		}
	});
}

function moreSong(songId, channelId, siteUrl, songId, object) {
	var popupSongMenuHtml = '';
	popupSongMenuHtml = '<a href="#" data-rel="back" class="ui-btn ui-btn-a ui-icon-md-close ui-btn-icon-notext ui-btn-right"></a>';
	popupSongMenuHtml += '<a href="#" class="ui-btn ui-btn-d ui-icon-md-add ui-btn-icon-left ui-btn-inline ui-shadow ui-corner-all ui-mini" onclick="customSong(\''+songId+'\', \''+channelId+'\', \'#popupSongMenu\');">自訂影片</a>';
    popupSongMenuHtml += '<a href="#" onclick="playShareSong(\'#popupSongMenu\', \''+siteUrl+'\', \''+songId+'\');" class="ui-btn ui-btn-e ui-icon-md-add ui-btn-icon-left ui-btn-inline ui-shadow ui-corner-all ui-mini">分享單曲</a>';
	$('#popupSongMenu').html(popupSongMenuHtml);
	$('#popupSongMenu').popup('open', {positionTo:$(object)});
}

function addSong(songId, videoId) {
	if(!videoId)
	{
		videoId = '';
	}

	// 新增歌曲
	showLoading('新增歌曲..');
	var baseUri = '/players/add_song';
	$.ajax({
		type: 'GET',
		headers: { "cache-control": "no-cache" },
		url: baseUri + '?rand=' + new Date().getTime(),
		async: true,
		cache: false,
		dataType : "json",
		data: {
			song_id: songId,
			video_id: videoId,
		},
		success: function(response)
		{
			showLoading(response.message, 1000);
		},
		error: function(XMLHttpRequest, textStatus, errorThrown) {
			hideLoading();
		}
	});

	return false;
}

function addAlbum(albumId) {
	// show message
	showLoading('加入專輯..');

	// 播放專輯
	var baseUri = '/players/add_album';
	$.ajax({
		type: 'GET',
		headers: {"cache-control": "no-cache"},
		url: baseUri + '?rand=' + new Date().getTime(),
		async: true,
		cache: false,
		dataType : "json",
		data: {
			album_id: albumId,
		},
		success: function(response)
		{
			// 隱藏 loading
			hideLoading();
			
			showLoading(response.message, 1000);
		},
		error: function(XMLHttpRequest, textStatus, errorThrown) {
			hideLoading();
		}
	});   
}

function onYouTubeIframeAPIReady() {
	videoPlayerScriptLoaded = true;
}

function onVideoReady(event) {
	if(videoPlayerStatus != 2)
	{
		// 播放影片
		event.target.playVideo();

		// 從 user 指定的播放時間開始播放
		var songIndex = getIndexBySongId(nowPlaySongSongId);
		var song = viewSongs[songIndex];
		playSeekStart(song.startSeconds);
		renderPlaySeek(nowPlaySongSongId);
	}
}

function onVideoError(event) {
	runVideoWindow(nowPlaySongVideoId);
}

function onVideoStateChange(event) {
	if (event.data == YT.PlayerState.ENDED) 
	{
		runNextVideo();
    }
}	

function getEndSeconds(song) {
	// 在自訂歌曲之後 song.endSeconds 不為 0
	return song.endSeconds == "0" ? song.duration : song.endSeconds;
}

function renderPlaySeek(songId) {
	// render 播放列
	var songIndex = getIndexBySongId(songId);
	var song = viewSongs[songIndex];
	if(typeof showVideoSeek != 'undefined' && showVideoSeek == '1')
	{
		startSeconds = song.startSeconds;
		endSeconds = getEndSeconds(song);
		$('#videoStartSeconds').attr('min', 0).attr('max', endSeconds).val(startSeconds).slider('refresh');
		$('#videoSeek').show();
	}
}

function renderVideoTitle() {
	return false;
	
	// 沒有歌曲
	if(view_songs_data() == false)
	{
		return false;
	}

	// 找不到歌曲
	var index = getIndexBySongId(nowPlaySongSongId);
	if(index == -1)
	{
		return false;
	}

	// 設定 title
	var song = viewSongs[index];
	if(typeof showAlbumName != 'undefined' && showAlbumName == '1')
	{
		$('#videoTitle').html(song.albumName + ' > ' + song.name);
	}
	else
	{
		$('#videoTitle').html(song.name);
	}
}

function renderVideoPlayer() {
	if(!videoPlayer)
	{
		return false;
	}

	var scrWidth = $(window).width() - 17;
	videoPlayer.setSize(scrWidth, videoPlayerMaxHeight);
}

function scale( width, height, padding, border ) {
    var scrWidth = $( window ).width() - 30,
        scrHeight = $( window ).height() - 30,
        ifrPadding = 2 * padding,
        ifrBorder = 2 * border,
        ifrWidth = width + ifrPadding + ifrBorder,
        ifrHeight = height + ifrPadding + ifrBorder,
        h, w;

    if ( ifrWidth < scrWidth && ifrHeight < scrHeight ) {
        w = ifrWidth;
        h = ifrHeight;
    } else if ( ( ifrWidth / scrWidth ) > ( ifrHeight / scrHeight ) ) {
        w = scrWidth;
        h = ( scrWidth / ifrWidth ) * ifrHeight;
    } else {
        h = scrHeight;
        w = ( scrHeight / ifrHeight ) * ifrWidth;
    }

    return {
        'width': w - ( ifrPadding + ifrBorder ),
        'height': h - ( ifrPadding + ifrBorder )
    };
};

$(document).on("pageinit", function() {
	// 用不到了
    $("#popupCategorys").on({
        popupbeforeposition: function() {
            var size = scale( 697, 498, 15, 1 ),
                w = size.width,
                h = size.height;

            $( "#popupCategorys iframe" )
                .attr( "width", w )
                .attr( "height", h );
        }
    });

    // 自訂影片
    $("#popupCustomSong").on({
        popupbeforeposition: function() {
            var size = scale( 697, 498, 15, 1 ),
                w = size.width,
                h = size.height;

            $( "#popupCustomSong iframe" )
                .attr( "width", w )
                .attr( "height", h );
        }
    });

    // 選擇單曲分類
    $("#popupSingerCategory").on({
        popupbeforeposition: function() {
            var size = scale( 697, 498, 15, 1 ),
                w = size.width,
                h = size.height;

            $( "#popupSingerCategory iframe" )
                .css('width', w)
                .css('height', h);
        },
        popupafterclose: function() 
       	{
			var $singerCategoryIframe = $('#popupSingerCategoryIframe');
       		if($singerCategoryIframe.length > 0 && $singerCategoryIframe[0].contentWindow && $singerCategoryIframe[0].contentWindow.changedCategory == '1')
			{
				location.reload();
			}
       	}
    });

    // 回報問題
    $("#popupReport").on({
        popupbeforeposition: function() {
            var size = scale( 697, 498, 15, 1 ),
                w = size.width,
                h = size.height;

            $( "#popupReport iframe" )
                .attr( "width", w )
                .attr( "height", h );
        }
    });

    // 加入歌曲時選擇影片
    $("#popupAddCustomSong").on({
        popupbeforeposition: function() {
            var size = scale( 697, 498, 15, 1 ),
                w = size.width,
                h = size.height;

            $( "#popupAddCustomSong iframe" )
                .attr( "width", w )
                .attr( "height", h );
        }
    });

    // 播放時間調整
	var $start = $('#videoStartSeconds');
	$("#videoStartSeconds").bind("change", function(event, ui) {
		var startSeconds = $start.val();
	  	playSeekStart(startSeconds);
	});

	$("#videoStartSeconds").bind("slidestop", function(event, ui) {
	  	playSeekProcess($start.val(), nowPlaySongSongId, channelId);
	});
});

$(window).resize(function(){
	renderVideoPlayer();
});

window.onbeforeunload = function(e) {
	closeVideoWindow();
};