//var SimpleSlider_Lib_Uri = "SimpleSlider.js";
var VLC_controller= null;

// queste immagini si trovano nella sottodirectory 'images' della VLCjs lib
var VLC_controller_icon_play = "player_play.png";
var VLC_controller_icon_stop = "player_stop.png";
var VLC_controller_icon_voldown = "moins.gif";
var VLC_controller_icon_volup = "plus.gif";
var VLC_controller_icon_pause = "player_pause.png";
var VLC_controller_icon_sound = "sound.png";
var VLC_controller_icon_soundoff = "sound_mute.png";
var VLC_controller_icon_options = "options.png";
var VLC_controller_icon_infos = "info.png";
var VLC_controller_icon_fullscreen = "fullscreen.gif";

var VLC_status = new Array("standby", "apertura", "buffering", "esecuzione", "pausa", "stop", "terminato");
	
var VLC_controller_default_buffersize = "5";
var VLC_controller_log_verbosity = -1;

// function SimpleSliderLibReceived() {
	// VLC_controller.slider = new Slider(VLC_controller.id+"_slider", VLC_controller.width, "10");
	// VLC_controller.slider.onNewPosition = VLC_controller.slider_position_changed;
// }

function toolbar_icon(icon, alt, onclick, id) {
	return "<img id='" + id + "' width='16' height='16' src='" + icon + "' style='vertical-align:middle;cursor:pointer;margin:1px' alt='" + alt + "' title='" + alt + "' onclick='" + onclick + "'/>";
}

function changeImageSrc(imgID, newSrc) {
	var tgt = document.getElementById(imgID);
	cursrc = tgt.src.substring(tgt.src.length - newSrc.length);
	if (cursrc != newSrc) tgt.src=newSrc;
}

// HTML FUNCTIONS
 
// function injectJS(uri) {
	// var s = document.createElement('script');
	// s.src = uri;
	// s.type = 'text/javascript';
	// document.body.appendChild(s);
// }

function addHTMLtoObj(obj, html, position) {
	if(self.Node&&self.Node.prototype){
		// mozilla
		var range = document.createRange();
		range.selectNode(obj);
		var htmlnode = range.createContextualFragment(html);
		var parent = obj.parentNode;
		
		position = position.toLowerCase();
		if (position=="beforebegin") parent.insertBefore(htmlnode, obj);
		else if(position=="afterend") parent.insertBefore(htmlnode, obj.nextSibling);
		else if(position=="afterbegin") obj.insertBefore(htmlnode, obj.childNodes[0]);
		else if(position=="beforeend") obj.appendChild(htmlnode);
		}
	else {
		//ie 
		obj.insertAdjacentHTML(position, html);
	}
}

function SimpleSlider_received() {
	//VLC_controller.target = new VLCobject(VLC_controller.id, VLC_controller.witdh, VLC_controller.height);
	//alert(VLC_controller);
	VLC_controller.libsReady();
}

function VLCcontrols(VLCobject, dodebug) {
	this.id = VLCobject.getAttribute('id');
	this.idleimage = null;
	this.isVideoVisible = true;
	this.target = document.getElementById(this.id);
	//this.updateTarget();
	this.root = ""
	
	this.options = new VLC_options(this);
	//this.options.VLCcontrol = this;
    
	this.loaded = false;
	this.onready = null;
	this.libloader = new ExternalLibLoader();
	//this.libloader.addLib("VLCobject.js", VLCobject_received);
	this.libloader.addLib("/Scripts/SimpleSlider.js", SimpleSlider_received);
	this.libloader.LoadLibs();
	
	//this.options.set("http-caching", parseInt(VLC_controller_default_buffersize) * 1000);
//	this.options.set("udp-caching", parseInt(VLC_controller_default_buffersize) * 1000);
	//this.options.set("http-reconnect", "true");
  
	
	VLC_controller = this;
	
	this.dodebug = false;
	
	this.width = VLCobject.getAttribute("width");
	//this.target.width;
	this.height = VLCobject.getAttribute("height");
	if (dodebug) this.dodebug = dodebug;
	
	// detect lib path (dirty)
	var sc = document.getElementsByTagName("SCRIPT");
	for (var i=0;i<sc.length;i++) {
		if(sc[i].src.indexOf("VLCcontrols.js")>-1) {
			this.root = sc[i].src.replace("VLCcontrols.js","");
			}
	}
 
	// if(!this.target) {
		// var errorinfo = "<span class='VLC_controller_notdetected'><b>Plugin VLC non installato !</b> --> scaricalo da <a href='http://downloads.videolan.org/pub/videolan/vlc/latest/win32/vlc-1.1.0-win32.exe' target='_blank'>http://www.videolan.org</a></span>";
		// document.body.innerHTML = errorinfo + document.body.innerHTML;
	////	return;
	// }
	
	
}

VLCcontrols.prototype.libsReady = function() {
	//alert(1);
	//alert(Slider);
	
	var bg_img = '<img style="display:" src="#" width="1" height="1" id="' + this.target.id +'_idleimage">';
 
	addHTMLtoObj(this.target, bg_img, "beforebegin");
	
	var toolbar = "";

	toolbar += '<div style="display:block;width:'+this.width +'px" id="'+this.id+'_slider"></div>';
	toolbar += "<div id='" + this.target.id + "_toolbar' class='VLC_toolbar' style='background:lightgreen;width:" + this.width + "px'>";
	toolbar += "<table border=0 cellpading=0 cellspacing=0 width='100%'><tr><td >";
	toolbar += toolbar_icon(this.root + "images/" + VLC_controller_icon_play, "Play/Pause", "VLC_controller.btn_play_clicked()", this.id + "_btn_play");
	toolbar += toolbar_icon(this.root + "images/" + VLC_controller_icon_stop, "Stop", "VLC_controller.btn_stop_clicked()", this.id + "_btn_stop");
//	toolbar += toolbar_icon("/vlcjs/images/player_prev.png", "Prev", "", this.id + "_btn_prev");
	//toolbar += toolbar_icon("/vlcjs/images/player_next.png", "Next", "", this.id + "_btn_next");
	toolbar += toolbar_icon(this.root + "images/" + VLC_controller_icon_sound, "Volume", "VLC_controller.btn_mute_clicked()", this.id + "_btn_mute");
	toolbar += toolbar_icon(this.root + "images/" + VLC_controller_icon_voldown, "Volume down", "VLC_controller.btn_voldown_clicked()", this.id + "_btn_voldown");
	toolbar += "<span style='font-size:10px'><span id='" + this.target.id + "_vollabel'>100</span>%</span>";
	
	toolbar += toolbar_icon(this.root + "images/" + VLC_controller_icon_volup, "Volume up", "VLC_controller.btn_volup_clicked()", this.id + "_btn_volup");
	
	toolbar += toolbar_icon(this.root + "images/" + VLC_controller_icon_fullscreen, "FullScreen", "VLC_controller.btn_fullscreen_clicked()", this.id + "_btn_fullscreen");
	
	toolbar += "</td><td align=center width=60>";
	
	toolbar += '<span style="vertical-align:middle;position:relative;font-size:14px;" id="infosPosition">00:00/00:00</span>';
	toolbar += "</td><td align=center width=65>";
	toolbar += '&nbsp;&nbsp;<span style="vertical-align:middle;font-size:12px" id="infosStatus">stopped</span>';
	toolbar += "</td><td align=center width=45>";
//	toolbar += toolbar_icon(this.root + "images/" + VLC_controller_icon_options, "Options", "VLC_controller.btn_options_clicked()", this.id + "_btn_options");
	toolbar += toolbar_icon(this.root + "images/" + VLC_controller_icon_infos, "Info", "VLC_controller.btn_infos_clicked()", this.id + "_btn_infos");
	toolbar += "</td></tr></table>";
	toolbar += '<div style="display:none" id="VLC_controller_options">';
	toolbar += '&nbsp;buffer : <input   size=1 style="vertical-align:middle;"  id="VLC_controller_options_http-caching" value="' + VLC_controller_default_buffersize + '" /> sec.';
	toolbar += '&nbsp;&nbsp;<input type="checkbox" ' + (this.dodebug && 'checked=1' || '') + '" style="vertical-align:middle;" onclick="VLC_controller.setdebug(this.checked)" id="VLC_controller_dodebugcheckbox"/><label for="VLC_controller_dodebugcheckbox">debug</label>';
	toolbar += '<span style="display:none">&nbsp;&nbsp;<input type="checkbox" ' + (this.dodebugvlc && 'checked=1' || 'checked=1') + '" style="vertical-align:middle;" onclick="VLC_controller.setdebugvlc(this.checked)" id="VLC_controller_dodebugvlccheckbox"/><label for="VLC_controller_dodebugvlccheckbox">debug VLC</label></span>';
	toolbar += '&nbsp;&nbsp;<input type="checkbox" style="vertical-align:middle;"  id="VLC_controller_DesktopOutputcheckbox"/><label for="VLC_controller_DesktopOutputcheckbox">set as wallpaper</label>';
	toolbar += '<span style="display:none">&nbsp;&nbsp;<input type="checkbox" style="vertical-align:middle;"  id="VLC_controller_FreeplayerModecheckbox"/><label for="VLC_controller_FreeplayerModecheckbox">FreePlayer</label></span>';
	
	toolbar += '&nbsp;&nbsp;&nbsp;&nbsp;<button style="vertical-align:middle;"  onclick="VLC_controller.saveOptions()">ok</button></div>';
	
	toolbar += "<div id='VLC_controller_debug_div' style='display:block'><textarea id='VLC_controller_debug' style='display:block;width:" + this.width + "px;height:200px'></textarea>";
	toolbar += "</div>";
	toolbar += '<div style="display:none" id="VLC_controller_infos">';
	toolbar += '';
	toolbar += "</div>";
		
	//this.target.insertAdjacentHTML("afterEnd", toolbar);
	
	addHTMLtoObj(this.target, toolbar, "afterEnd");
	
	//alert(this.width);
	this.slider = new Slider(this.id+"_slider", this.width, "5");
	this.slider.onNewPosition = this.slider_position_changed;
	
	
	//this.slider = null;
	
	// trick to load external JS file
	//injectJS(this.root + SimpleSlider_Lib_Uri);
			
	this.load();
	
	setInterval("VLC_controller.updateStatus()", 1000 );
	
	this.loaded = true;
	
	if (this.onready) this.onready();
	//this.debug("plugin loaded v." + this.target.versionInfo);
}


VLCcontrols.prototype.changeVolume = function(newVolume) {
	// prends une valeur entre 0 et 100
	document.getElementById(this.id + "_vollabel").innerHTML = newVolume;
//var vlc_volume = parseInt(newVolume)
	this.target.audio.volume = newVolume;
	if (newVolume > 0) changeImageSrc(this.id + "_btn_mute", this.root + "images/" + VLC_controller_icon_sound);
	else changeImageSrc(this.id + "_btn_mute", this.root + "images/" + VLC_controller_icon_soundoff);
}

VLCcontrols.prototype.btn_voldown_clicked = function() {
	if (!this.target.audio) return;
	var curvolume = this.target.audio.volume;
	curvolume -= 10;
	if (curvolume <= 0) this.changeVolume(0);
	else if (curvolume >= 200) this.changeVolume(200);
	else this.changeVolume(curvolume);
	
}

VLCcontrols.prototype.btn_fullscreen_clicked = function() {
	this.target.video.toggleFullscreen();
}


VLCcontrols.prototype.btn_volup_clicked = function() {
	if (!this.target.audio) return;
	var curvolume = this.target.audio.volume;
	curvolume += 10;
	if (curvolume <= 0) this.changeVolume(0);
	else if (curvolume >= 200) this.changeVolume(200);
	else this.changeVolume(curvolume);
	
}

VLCcontrols.prototype.setFreeplayerMode = function(checked) {
}

VLCcontrols.prototype.updateTarget = function() {
	
	this.target = document.getElementById(this.id);
	if (!document.all) {
		
		this.target.innerHTML += '<embed type="application/x-vlc-plugin" pluginspage="http://downloads.videolan.org/pub/videolan/vlc/latest/win32/vlc-1.1.0-win32.exe" version="VideoLAN.VLCPlugin.2" id="' + this.id + '_moz"/>';
	
		this.target = document.getElementById(this.id + "_moz");
		
		}
 }

VLCcontrols.prototype.setIdleImage = function(imgSrc) {
	this.idleimage = imgSrc;
	document.getElementById(this.id +"_idleimage").src = imgSrc;
	this.hideVideo();
	
}

VLCcontrols.prototype.hideVideo = function() {
	if (!this.isVideoVisible) return;
	if (!this.idleimage) return;
	this.target.style.width=0;
	this.target.style.height=0;
	
	var tgt = document.getElementById(this.id +"_idleimage");
	tgt.style.width = this.width;
	tgt.style.height = this.height;
		
	this.isVideoVisible = false;
}

VLCcontrols.prototype.showVideo = function() {
	if (this.isVideoVisible) return;
	var tgt = document.getElementById(this.id +"_idleimage");
	tgt.style.width = 0;
	tgt.style.height = 0;
	this.target.style.width=this.width;
	this.target.style.height=this.height;
	this.isVideoVisible = true;
}

VLCcontrols.prototype.setdebug = function(checked) {
	this.dodebug = checked
    //if (this.target && this.target.log) this.target.log.verbosity = VLC_controller_log_verbosity;
	this.debug("debug changed");

}
 
VLCcontrols.prototype.debug = function(astr) {
	var tgt = document.getElementById("VLC_controller_debug_div");
   // alert("debug "+astr);
	if (tgt &&  this.dodebug) {
		document.getElementById("VLC_controller_debug_div").style.display="block";
		document.getElementById("VLC_controller_debug").value+=astr + "\n";
		document.getElementById("VLC_controller_debug").scrollTop=document.getElementById("VLC_controller_debug").scrollHeight;
        
		}
	else {
	 	if (tgt) tgt.style.display="none";
	}
}
 


VLCcontrols.prototype.btn_options_clicked = function() {
	var tgt = document.getElementById("VLC_controller_options");
	if (tgt.style.display=="block") {
		tgt.style.display="none";
	}
	else {
		tgt.style.display="block";
	}
}


VLCcontrols.prototype.btn_infos_clicked = function() {
	var tgt = document.getElementById("VLC_controller_infos");
	if (tgt.style.display=="block") {
		tgt.style.display="none";
	}
	else {
		tgt.style.display="block";
	}
}
 
VLCcontrols.prototype.setBufferSize = function(seconds) {
	document.getElementById("VLC_controller_options_http-caching").value = seconds;
	this.options.set("http-caching", parseInt(seconds) * 1000); 
	this.options.set("udp-caching", parseInt(seconds) * 1000); 
}
VLCcontrols.prototype.saveOptions = function() {
	this.setBufferSize(document.getElementById("VLC_controller_options_http-caching").value);

	document.getElementById("VLC_controller_options").style.display="none";
	if (this.target.playlist.isPlaying == true && this.target.input) {
		var sure = confirm("Vuoi rilanciare il video con questi parametri?");
		if (sure) this.restart();
		}
	this.debug("Options saved");
	//TODO : cookie ?
}

function formatTime(timeVal)
{
    var timeHour = Math.round(timeVal / 1000);
    var timeSec = timeHour % 60;
    if( timeSec < 10 )
        timeSec = '0'+timeSec;
    timeHour = (timeHour - timeSec)/60;
    var timeMin = timeHour % 60;
    if( timeMin < 10 )
        timeMin = '0'+timeMin;
    timeHour = (timeHour - timeMin)/60;
    if( timeHour > 0 )
        return timeHour+":"+timeMin+":"+timeSec;
    else
        return timeMin+":"+timeSec;
};

function format_time2( s )
{
    var hours = Math.floor(s/3600);
    var minutes = Math.floor((s/60)%60);
    var seconds = Math.floor(s%60);
    if( hours < 10 ) hours = "0"+hours;
    if( minutes < 10 ) minutes = "0"+minutes;
    if( seconds < 10 ) seconds = "0"+seconds;
    return hours+":"+minutes+":"+seconds;
}



var inputTrackerIgnoreChange = false;
var VLC_controller_paused = false;

VLCcontrols.prototype.btn_stop_clicked = function() {
	if (!this.check_playlist()) {
				//alert("Nessuna playlist !");
	//			return;
	}
	try {
		this.target.playlist.stop();
		VLC_controller_paused = false;
		changeImageSrc(this.id + "_btn_play", this.root + "images/" + VLC_controller_icon_play );
		//document.getElementById(this.id + "_btn_play").src=VLC_controller_icon_play;
		this.setSliderPos(0);
		//this.slider.setPosition(0);
		this.hideVideo();
		
		}
		catch(e) {//do noting
		}
		if (VLC_controller.onStopCallback) VLC_controller.onStopCallback();
}

var lastvolume = 0;
VLCcontrols.prototype.btn_mute_clicked = function() {
	
	var cursrc = document.getElementById(this.id + "_btn_mute").src;
	cursrc = cursrc.substring(cursrc.length - VLC_controller_icon_sound.length);
	if (cursrc==this.root + "images/" + VLC_controller_icon_sound) {
		lastvolume = this.target.audio.volume;
		this.changeVolume(0);
		}
	else {
		this.changeVolume(lastvolume);		
	}
}


VLCcontrols.prototype.check_playlist = function() {
	return (this.target.playlist && this.target.playlist.items.count > 0);
}

VLCcontrols.prototype.btn_play_clicked = function() {
	this.debug("btn_play_clicked");
	var cursrc = document.getElementById(this.id + "_btn_play").src;
	cursrc = cursrc.substring(cursrc.length - (this.root + "images/" + VLC_controller_icon_play).length);

	if (cursrc==this.root + "images/" + VLC_controller_icon_play) {
		
		// start
		if (VLC_controller_paused) {
			this.target.playlist.togglePause();
		}
		else {
			VLC_controller_paused = false;
			if (!this.check_playlist()) {
				alert("nessun video caricato!");
				return;
			}
			else {
				
				this.target.playlist.play();
				}
		}
		changeImageSrc(this.id + "_btn_play", this.root + "images/" + VLC_controller_icon_pause);
	}
	else {
		changeImageSrc(this.id + "_btn_play", this.root + "images/" + VLC_controller_icon_play);

		// pause
		this.target.playlist.togglePause();
		VLC_controller_paused = true;	
	}
}


VLCcontrols.prototype.slider_position_changed = function() {
    //this.debug("slider_position_changed");
	if (VLC_controller.target && VLC_controller.target.input ) {

		if (parseInt(VLC_controller.target.input.length) == 0) {
			// flux non seekable
			if (VLC_controller.onSliderChangedCallback) {
				VLC_controller.onSliderChangedCallback(this.position);
			}
			else {
				VLC_controller.setSliderPos(this.position);
			}
			return;
			}
		else {
			// flux seekable
			try {VLC_controller.target.input.position = this.position;}
			catch(e) {}
		}
	}	
}
 
var VLC_controller_last_status = null;

VLCcontrols.prototype.updateStatusFromExternalData = function() {
	this.debug("default updateStatusFromExternalData");
}

 
VLCcontrols.prototype.setSliderPos = function(pos) {
    //this.debug("setSliderPos");
	if (this.slider) this.slider.setPosition(pos);
 
}

VLCcontrols.prototype.updateStatus = function() {
 //       this.debug("default updateStatus "+ this.target.input.hasVout);
 
        var play_status = document.getElementById("play_status");

					try {
                            if (this.target.playlist && (this.target.playlist.isPlaying == true) && this.target.input)
                            {	
                                    var h = formatTime(this.target.input.time);
                                    if (parseInt(h) < 1000)  {
                                        changeImageSrc(this.id + "_btn_play", this.root + "images/" + VLC_controller_icon_pause);
                                        if (parseInt(this.target.input.length) == 0)  {
                                            this.updateStatusFromExternalData();
                                        }
                                        else {
                                            document.getElementById("infosPosition").innerHTML = h+"/"+formatTime(this.target.input.length);								
                                            VLC_controller.position = this.target.input.position;
                                            this.setSliderPos(this.target.input.position);
                                            }
                                         }
                                     if (this.target.input && this.target.input.hasVout) this.showVideo();
                                     else  this.hideVideo();
                                     
                                        }
                            else
                            {
                                document.getElementById("infosPosition").innerHTML = "00:00/00:00";
                                changeImageSrc(this.id + "_btn_play", this.root + "images/" + VLC_controller_icon_play);
                                this.hideVideo();
                                this.setSliderPos(0);
                            }
                            
						}
					catch(e) {}
		     
				this.updateStatusText();
				this.updateVlcMessages();
    }

	
VLCcontrols.prototype.updateVlcMessages = function() {
    //this.debug("updateVlcMessages");
    //return;
    if (!this.target.log) return;
    
	if (!this.dodebug) {
		if (this.target.log) this.target.log.messages.clear();
		return;
		}
	
    
    
    if (!this.target.log) return
	var msgs=this.target.log.messages;
   
	var iter = msgs.iterator();
		while (iter.hasNext) {
            console.log(1);
			var msg = iter.next();
			if (msg) {
				var contents = msg.message;
				if (msg.type!="private" && !(contents.substring(0,19)=="backward_pts != dts")  && !(contents.substring(0,28)=="backward_pts != standard_pts") && !(contents.substring(0,20)=="late picture skipped") && !(contents.substring(0,19)=="PTS oltre i limiti")) {
					this.debug("VLC: " + msg.name + " " + msg.type + " : " + contents);
					}
				}
		}
		if (this.target.log) this.target.log.messages.clear();
}

VLCcontrols.prototype.updateStatusText = function() {
    
	var status = VLC_status[0];
    try {
        if (this.target.input) status = VLC_status[this.target.input.state];
    }
    catch (e){
        //
    }
        
        
        
        
	if (status) {
		document.getElementById("infosStatus").innerHTML = status;
		if (VLC_controller_last_status != status) this.debug("status : " + status);
		VLC_controller_last_status = status;
		}
	if (VLC_controller.onStatusChangedCallback) VLC_controller.onStatusChangedCallback(status);
}
	
VLCcontrols.prototype.load = function() {
	this.target.width = this.width ;
	this.target.style.width = this.width ;
	this.target.height = this.height;
	this.target.style.height = this.height ;
	this.updateStatusText();
}

VLCcontrols.prototype.stop = function() {
	this.debug("stop");
	this.target.playlist.stop();

}

VLCcontrols.prototype.restart = function() {
	this.debug("restart");
	if (this.target.playlist.isPlaying) this.target.playlist.stop();
	this.target.playlist.play();
}

 

VLCcontrols.prototype.waitForPlaylistToEmpty = function() {
	this.debug("waitForPlaylistToEmpty");
 
        var options = this.options.format_for_vlc();
        this.debug("addplaylist: " +uri_to_play);
        this.debug("options passed: " +options);
		var id = this.target.playlist.add(uri_to_play, uri_to_play, options);
	    this.target.playlist.playItem(id);
 
}


var uri_to_play = "";
VLCcontrols.prototype.doPlay = function(uri) {
	// INTERNAL ONLY
	//	   if (this.target.audio) this.target.audio.volume = parseInt(document.getElementById(this.id + "_vollabel").innerHTML);
        try {this.target.playlist.stop();} catch(e) {}
		uri_to_play = uri;
		//this.waitForPlaylistToEmpty();
        //var options = new Array();
        var options = this.options.format_for_vlc();
        var id = this.target.playlist.add(uri_to_play, uri_to_play, options);
	    this.target.playlist.playItem(id);
}

VLCcontrols.prototype.play = function(uri) {
	//if (this.target.log) this.target.log.verbosity = VLC_controller_log_verbosity;
	this.debug("play " + uri);
    try {this.target.playlist.stop();} catch(e) {}
	setTimeout("VLC_controller.doPlay('" + uri + "')", 250);
}




function VLC_options(VLCcontroller) {
	// better options management
	this.VLCcontroller = VLCcontroller;
	this.options = new Array();
	
	this.set = function(name, value) {
        if (this.VLCcontroller) this.VLCcontroller.debug("set option "+name+"="+value);
        //.debug("io");
		this.options[name] = value || null;
	}
	
	this.del = function(name) {
		delete this.options[name];
		 
	}
	
	this.get = function(name) {
		return this.options[name];
	}
	
	this.clear = function() {
		this.options = new Array();
	}
	
	this.format_for_vlc = function() {
		var tmp_array = new Array();
		var debug_str = "";
		var idx = 0;
		for (var i in this.options)
		{
			var option_str = ":" + i;
			if (this.options[i]) option_str += "=" + this.options[i];
			tmp_array[idx] = option_str;
			debug_str += option_str + " ";
			idx += 1;
		}
        if (this.VLCcontroller) this.VLCcontroller.debug(debug_str);
		return debug_str;
	}
}