function player()
{
	this.currently_playing = 0;
	this.currently_playingID = 0;
	this.current_play_type = "";
	this.stop_playlist = false;
	this.play_random = false;
	this.source = "mp3_list";
	this.sourceID = "mp3_list";
	this.otherID = "playlistID";
	this.inited = 0;
	this.last_position = 0;
	this.mySound = false;
	this.time_display_mode = 1;
	this.volume = 100;
	this.stop_updating = false;
	this.current_data = false;
	this.played_songs = new Array();
	
	this.play_playlist = function(source)
	{
		this.stop_playlist = false;
		this.currently_playing = 0;
		this.play_step(source,0);
	}
	
	this.play = function()
	{
		this.stop_playlist = false;
		
		var store = Ext.getCmp(this.sourceID).getStore();

		if(store.data.items.length)
		{
			var first_selected = Ext.getCmp(sourceID).selModel.getSelected();	
			var start_index = Ext.getCmp(sourceID).getStore().indexOf(first_selected);
			this.play_index(start_index);
		}
	}
	
	this.play_index = function(index)
	{
		var store = Ext.getCmp(this.sourceID).getStore();
		this.currently_playingID =  store.data.items[index].data.ID;
		this.current_data = store.data.items[index].data;

		Ext.getCmp(this.sourceID).selModel.clearSelections();
		Ext.getCmp(this.sourceID).selModel.selectRow(index);
		Ext.getCmp(this.otherID).selModel.clearSelections();
			
		this.play_song();
	}
	
	this.new_source = function(source)
	{
		this.source = source;
		switch(source)
		{
		case "playlist":
			this.sourceID = "playlistID";
			this.otherID  = "mp3_list";
			break;
		case "mp3_list":
			this.sourceID = "mp3_list";
			this.otherID  = "playlistID";
			break;
		}	
	}
	
	this.prev_next = function(dir)
	{
		var store = Ext.getCmp(this.sourceID).getStore();
		var next_index = 0;
		
		if(this.currently_playingID)
		{
			if(this.list_random)
			{
				var available_songs = new Array();
				// welche songs stehen zur Verfügung, die noch nicht gespielt wurden?
				for(var i=0;i<store.data.items.length;i++)
				{
					if(!this.played_songs[store.data.items[i].data.ID])
					{
						available_songs[available_songs.length] = store.data.items[i].data.ID;
					}
				}				
				
				if(available_songs.length)
				{
					num = rand( 0, available_songs.length - 1 );
					next_index = this.search_index(available_songs[num]);
				}
				else
				{
					next_index = rand( 0, store.data.length - 1 );
					this.played_songs = new Array();
				}
			}
			else
			{
				var current_index = this.search_index(this.currently_playingID);
				if(current_index!=-1)
				{
					if(dir>0)
					{
						if ((current_index + 1)<store.data.items.length)
							next_index = current_index + 1;
						else
							next_index = 0;
					}
					else
					{
						if(current_index>0)
							next_index = current_index - 1;
						else
							next_index = store.data.items.length-1;
					}
				}
				else
					next_index = 0;
			}
		}
		else next_index = 0;
		
		this.play_index(next_index);
	}
	
	this.search_index = function(ID)
	{
		if(this.sourceID)
		{
			var store = Ext.getCmp(this.sourceID).getStore();
			
			for(var i=0;i<store.data.items.length;i++)
			{
				if(store.data.items[i].data.ID == ID)
				{
					return i;
				}
			}
		}
		return -1;
	}
	
	this.play_step = function(source,dir)
	{
		this.stop_playlist = false;
		if(!source)
			source = this.source;
		
		this.source = source;
		switch(source)
		{
		case "playlist":
			var sourceID = "playlistID";
			var otherID  = "mp3_list";
			break;
		case "mp3_list":
			var sourceID = "mp3_list";
			var otherID  = "playlistID";
			break;
		}
		var store = Ext.getCmp(sourceID).getStore();
	
		if(store.data.length)
		{
			if(this.list_random) 
			{
				this.currently_playing = rand( 0, store.data.length - 1 );
			}
			else
			{
				if(	this.current_play_type != source)
				{
					first_selected = Ext.getCmp(sourceID).selModel.getSelected();	
					if(first_selected)
					{
						 this.currently_playing = Ext.getCmp(sourceID).getStore().indexOf(first_selected);
					}
					else
					{
						if(dir>0)
							this.currently_playing = 0;
						else if(dir<0)
							this.currently_playing = store.data.length - 1;
					}
				}
				else
				{
					if(!dir)
					{
						first_selected = Ext.getCmp(sourceID).selModel.getSelected();	
						if(first_selected)
							this.currently_playing = Ext.getCmp(sourceID).getStore().indexOf(first_selected);
						else
							this.currently_playing = 0;
					}
					else
						this.currently_playing = this.currently_playing + dir;
				}
				
				this.current_play_type = source;
		
				if(this.currently_playing > store.data.length - 1)
					this.currently_playing = 0;
				
				if(this.currently_playing < 0)
					this.currently_playing = store.data.length - 1;
				
			}
			var data = store.data.items[this.currently_playing].data;
		
			Ext.getCmp(sourceID).selModel.clearSelections();
			Ext.getCmp(sourceID).selModel.selectRow(this.currently_playing);
			Ext.getCmp(otherID).selModel.clearSelections();
			this.play_song(data);
		}
	}
	
	this.save_playlist = function()
	{
		var storeArray = [];
		var count = 0;
		var serializedStore = false;
		if(Ext.getCmp("playlist_selectionID").getValue()>0)
		{
			var pl = Ext.getCmp("playlist_selectionID");
			if(pl.selectedIndex>=0)
			{
				var userID = pl.store.data.items[pl.selectedIndex].data.userID;		
				if(!(1 || (userID == 2 && 1)))
					return false;
			}
			
			if(!(1 || (userID == 2 && 1)))
				return false;			
			
			var store = Ext.getCmp("playlistID").getStore();
			for(i = 0; i < store.data.length; i++)
			{
				storeArray[count++] = store.data.items[i].data.ID;
			}
			serializedStore = Ext.encode(storeArray);
			Ext.getCmp("playlistID").getEl().mask("Saving...");
			Ext.Ajax.request(
				{
				url:'playlist_handle.php', 
				params: { id: Ext.getCmp('playlist_selectionID').getValue(), action: 'save_playlist', songIDs: serializedStore },
				success:function(form, action)
					{
						/*var store = Ext.getCmp("playlistID").getStore();
						if(store.lastOptions && store.lastOptions.params)
							store.lastOptions.params[store.paramNames.start] = 0;
						store.reload();*/
						Ext.getCmp("playlistID").getEl().unmask();
					},
				failure:function(form,action)
					{
					Ext.Msg.show({
						title: 'Error', 
						msg: 'error saving playlist',
						minWidth: 200,
						modal: true,
						icon: Ext.Msg.ERROR,
						buttons: Ext.Msg.OK
						});
					Ext.getCmp("playlistID").getEl().unmask();
					}
				})
		}		
	}
	
	this.seek_percent = function(percent)
	{
		if(this.mySound) 
		{
			soundManager.setPosition("my_soundID",Math.round(player_obj.duration*percent/100*1000));
			player_obj.stop_updating = false;
		}
	}
	
	this.set_volume = function(percent)
	{
		this.volume = percent;
		soundManager.setVolume("my_soundID",percent);
	}
	
	this.pause_playlist = function(from)
	{
		if(this.mySound) 
		{
			player_bar.enable();
			soundManager.setVolume("my_soundID",this.volume);
			soundManager.togglePause('my_soundID');
			if(this.mySound.paused)
				this.pause_button.setIconClass("icon-play");
			else
				this.pause_button.setIconClass("icon-pause");			
		}
		else
		{
			this.play_index(0);
		}
	}
	
	this.stop_playing = function()
	{
		soundManager.stop('my_soundID');
		soundManager.unload('my_soundID');
		this.pause_button.setIconClass("icon-play");
		player_bar.setValue(0);
		player_bar.disable();
		this.digits(0);
		document.getElementById("ladebalken").style.width = "0px";
	}

	this.digits = function(seconds)
	{
		if(this.time_display_mode < 0)
		{
			sign = -1;
			seconds = parseInt(this.duration) - parseInt(seconds);
		}
		else
			sign = 1;		

		var sec_1;
		var sec_2;
		var min_1;
		var min_2;
		var min_3;
		
		var minutes = Math.floor(seconds/60);
		var seconds = seconds - minutes*60;
		
		if(minutes<10)
			min_2 = 0;
		else
			min_2 = Math.floor(minutes/10);
	
		min_1 = minutes - min_2*10;
		
		if(seconds<10)
			sec_2 = 0;
		else
			sec_2 = Math.floor(seconds/10);
		
		sec_1 = seconds - sec_2*10;
		
		if(sign<0) min_3 = 11;
		else min_3 = 10;
		
		this.set_digit("sec_1",sec_1);
		this.set_digit("sec_2",sec_2);
		this.set_digit("min_1",min_1);
		this.set_digit("min_2",min_2);
		this.set_digit("min_3",min_3);
	}
	
	this.toggle_time_display_mode = function()
	{
		if(this.time_display_mode < 0)
			this.time_display_mode = 1;
		else
			this.time_display_mode = -1;
		
		cp.set("time_display_mode",this.time_display_mode);
		
		this.digits(Math.round(this.mySound.position/1000));
	}
	
	this.set_time_display_mode = function()
	{
		this.time_display_mode = cp.get("time_display_mode",1);
		
		this.digits(Math.round(this.mySound.position/1000));
	}	
	
	this.set_digit = function(id,value)
	{
		if(isNaN(value))
			value = 0;
		document.getElementById(id).style.backgroundPosition = value*-9 + "px 0px";
	}

	this.play_song = function()
	{
		if(this.inited==0)
		{
			this.inited = 1;
			soundManager.onload = function() { player_obj.play_song(); }
			soundManager.beginDelayedInit();
			return false;
		}
		else if(this.current_data)
		{
			data = this.current_data;
			this.extras_button.enable();
			
			this.played_songs[data.ID] = 1;
			
			var artist = htmlspecialchars_decode(data.artist);
			var title = htmlspecialchars_decode(data.title);
			var album = htmlspecialchars_decode(data.album);
			var track = htmlspecialchars_decode(data.track);
			
			var time = renderDuration(htmlspecialchars_decode(data.duration));
			var bit_rate = number_format(data.bit_rate/1000,0,',','.') + " kbps";
			var filename = (data.filename);
			var full_path = (data.full_path);
			var currently_playing_array = new Array();
			var url = "";
			
			this.stop_playlist = false;
			if(DEMO_MODE)
			{
				url = "mp3/" + unescape(DEMO_FILE);
				this.duration = DEMO_LENGTH;
			}
			else
			{
				this.duration = data.duration;
			
									url = "stream.php?ID=" + data.ID;
								}

			if(data.artistID && artist)
				document.getElementById("info_artist").innerHTML = "<a href=\"javascript: void(0)\" onClick=\"filter_setting('artist'," + data.artistID + ");\">" + artist + "</a>";
			else
				document.getElementById("info_artist").innerHTML = "-";
			
			if(title)
				document.getElementById("info_title").innerHTML = title;
			else
				document.getElementById("info_title").innerHTML = "-";
			
			if(data.albumID && album)
				document.getElementById("info_album").innerHTML = "<a href=\"javascript: void(0)\" onClick=\"filter_setting('album'," + data.albumID + ");\">" + album + "</a>";
			else
				document.getElementById("info_album").innerHTML = "-";
	
			if(full_path)
				document.getElementById("info_path").innerHTML = "<a href=\"javascript: void(0)\" onClick=\"open_path('" + data.full_path + "');\">" + full_path + "</a>";
			else
				document.getElementById("info_path").innerHTML = "-";
	
			if(bit_rate)
				document.getElementById("info_bitrate").innerHTML = bit_rate;
			else
				document.getElementById("info_bitrate").innerHTML = "-";
	
			if(time)
				document.getElementById("info_time").innerHTML = time;
			else
				document.getElementById("info_time").innerHTML = "-";
	
			if(track)
				document.getElementById("info_track").innerHTML = track;
			else
				document.getElementById("info_track").innerHTML = "-";
			
			var window_title = "";
			if(htmlspecialchars_decode(artist))
				window_title = htmlspecialchars_decode(artist);
			if(htmlspecialchars_decode(artist) && htmlspecialchars_decode(title))
				window_title = window_title + " - ";
			if(htmlspecialchars_decode(title))
				window_title = window_title + htmlspecialchars_decode(title)
			
			if(window_title!="")
				document.title = window_title;
			else
				document.title = "unknown song";

			player_bar.setValue(0);
			
			if(this.mySound) 
				soundManager.destroySound('my_soundID');
			
			document.getElementById("ladebalken").style.width = "0px";
	
			document.getElementById("info_cover").src = "get_cover.php?albumID=" + data.albumID + "&artist=" + encodeURIComponent(artist) + "&album=" + encodeURIComponent(album);
			this.mySound = soundManager.createSound({
				id: 'my_soundID',
				url: Utf8.encode(url),
				volume: this.volume,
				onfinish: function()
				{
					player_obj.prev_next(1);
				},
				whileplaying: function()
				{
					if(Math.round(this.position/1000)!=this.last_position && !player_obj.stop_updating)
					{
						document.getElementById("debug").innerHTML = this.last_position;
						player_bar.setValue(Math.round(this.position/player_obj.duration/1000*100));
						player_obj.digits(Math.round(this.position/1000));
						this.last_position = Math.round(this.position/1000);
					}
				},
				whileloading: function()
				{
					max_width = 178;
					document.getElementById("ladebalken").style.width = Math.round(this.bytesLoaded/this.bytesTotal*max_width) + "px";
				}
				// onload: [ event handler function object ],
				// other options here,
			});
			player_bar.enable();
			this.mySound.play();
			this.pause_button.setIconClass("icon-pause");			
			this.set_volume(this.volume);
			
			//flash_player.sendEvent("PLAY","true");
					
			//mp3_list_obj.setTitle(currently_playing_array.join(", "));
			/*EP_loadMP3("ep_player","<location>" + (convert_path(path)) + "</location><creator>" + artist + "</creator><title>" + title + "</title>");
			EP_play("ep_player");*/
			/*Ext.Ajax.request({
				 url: 'num_plays.php',
				 params: { ID: data.ID }
				});*/
		}
	}
}