var index_title;
var index_header;
var index_menu;
var index_data;
var index_update;
var last_index;
var timer_id;
var timer_id_update;
var buffer_data;
var mode = -1;
var mode_bridge = 0;
var mode_bridge_dir;
var mode_update_dir;

// -------------------------------------------------- //
// trace error
// -------------------------------------------------- //
function traceError(request)
{
	alert('Sorry. There was an error. ' + request);
}

// -------------------------------------------------- //
// getSubString
// -------------------------------------------------- //
function getSubString(str, index, separator)
{	
	var sub = '';
	var cindex = 1;	
	for (pos = 0; pos < str.length; pos++) 
		{
		if (str.charAt(pos) == separator)
			{
			if (cindex == index) return sub;
			cindex = cindex + 1;	
			}
		else if (cindex == index) 
			{
			sub = sub + str.substr(pos, 1);
			}
		}
	return sub;
}

// -------------------------------------------------- //
// getXMLHttpRequest
// -------------------------------------------------- //
function getXMLHttpRequest() 
{
	var xhr = null;
	if(window.XMLHttpRequest) 
		{
		xhr = new XMLHttpRequest();
		}
	else if(window.ActiveXObject) 
		{
		try {xhr = new ActiveXObject("Msxml2.XMLHTTP");} 
		catch (e) {xhr = new ActiveXObject("Microsoft.XMLHTTP");}
		}
	else xhr = false;
	return xhr;
}

// -------------------------------------------------- //
// Fade Effect
// -------------------------------------------------- //
function startFade(eid)
{
	var element = document.getElementById(eid);
	if (element == null) return;
	if (element.FadeState == 1) return;
	element.FadeState = 1; 
	element.style.opacity = 0;
	element.FadeTimeLeft = 300.0;
	setTimeout("animateFade(" + new Date().getTime() + ",'" + eid + "')", 33); 
}

function animateFade(lastTick, eid)
{  
	var element = document.getElementById(eid);
	if (element == null) return;
	var curTick = new Date().getTime();
	var elapsedTicks = curTick - lastTick;
	if (element.FadeTimeLeft <= elapsedTicks)
		{
		element.style.opacity = '1';
		element.style.filter = 'alpha(opacity = 100)';
		element.FadeState = 2;
		return;
		}
	element.FadeTimeLeft -= elapsedTicks;
	var newOpVal = element.FadeTimeLeft/300.0;
	newOpVal = 1 - newOpVal;
	element.style.opacity = newOpVal;
	element.style.filter = 'alpha(opacity = ' + (newOpVal*100) + ')';
	setTimeout("animateFade(" + curTick + ",'" + eid + "')", 33);
}

// -------------------------------------------------- //
// class AjaxElementUpdater
// -------------------------------------------------- //
function AjaxElementUpdater(p_element, p_file)
{
	var element = p_element;
	var xhr = getXMLHttpRequest();
	xhr.onreadystatechange = function ()
		{
		if (xhr.readyState != 4) return;
		document.getElementById(element).innerHTML = xhr.responseText;
		}
	xhr.open("get", p_file, true);
	xhr.send(null);
}

// -------------------------------------------------- //
// loadTimer
// -------------------------------------------------- //

function loadTimer()
{
	timer_id = setTimeout("loadTimer()", 10000);
	var xhr = getXMLHttpRequest();
    xhr.onreadystatechange = function() { answerTimer(xhr); };
    xhr.open("get", 'live.php' + '?' + Math.random(), true);
    xhr.send(null);
}

function answerTimer(xhr)
{
	if (xhr.readyState != 4) return;
	var docTEXT;
	try {docTEXT = xhr.responseText;} catch(e){alert(e);}
	if (docTEXT.length == 0) return;
	checkData(index_title, 'data_title', getSubString(docTEXT, index_title, ';'));
	checkData(index_menu, 'data_menu', getSubString(docTEXT, index_menu, ';'));
	checkData(index_data, 'data', getSubString(docTEXT, index_data, ';'));
	//---toutes les 5 secondes, mise à jour des fichiers
	clearTimeout(timer_id);
	timer_id = setTimeout("loadTimer()", 5000);
}

function checkData(index, eid, data_index)
{
	if (last_index[index] == data_index) return;
	last_index[index] = data_index;
	if (index == 9)
		{
		index_update = 0;
		}
	else
		{
		var file = 'text.php?file=data' + index + '_' + data_index%10 + '.txt';
		new AjaxElementUpdater(eid, file + '&' + Math.random()%1000);
		}
}

// -------------------------------------------------- //
// Update
// -------------------------------------------------- //

function loadTimerUpdate()
{
	timer_id_update = setTimeout("loadTimerUpdate()", 10000);
	//gestion socket
	if (mode_bridge == 1) 
		{
		manageBridge.connect('www.vola-racing.com', 8339);
		mode_bridge = 0;
		return;
		}
	if (mode_bridge != 0) 
		{
		//document.getElementById('debug1').innerHTML = 'socket mode';
		return;
		}
	//gestion ajax
	var xhr = getXMLHttpRequest();
    xhr.onreadystatechange = function() { answerTimerUpdate(xhr); };
    xhr.open("get", 'update.php?dir=' + mode_update_dir + '&index=' + index_update + '&' + Math.random()%1000, true);
	//document.getElementById('debug1').innerHTML = 'update.php?index=' + index_update;
	xhr.send(null);
}

function answerTimerUpdate(xhr)
{
	if (xhr.readyState != 4) return;
	if (mode != 1) return;
	if (mode_bridge != 0) return;
	var docTEXT;
	try {docTEXT = xhr.responseText;} catch(e){alert(e);}
	makeData(docTEXT);
	clearTimeout(timer_id_update);
	timer_id_update = setTimeout("loadTimerUpdate()", 2500);
}

function makeData(data)
{	
	if (mode != 1) return;
	buffer_data += data;
	var pos = buffer_data.indexOf('\3');
	while (pos != -1)
		{
		var new_data = buffer_data.substring(0, pos);
		var eid = getSubString(new_data, 2, '\4');
		var element = document.getElementById(eid);
		if (element)
			{
			var new_class = getSubString(new_data, 3, '\4');
			var new_html = getSubString(new_data, 4, '\4');
			var length = new_class.length;
			if (length > 0 && new_class.charAt(length-1) == '*')
				{
				new_class = new_class.substring(0, length-1);
				startFade(eid);
				}
			if (element.innerHTML != new_html) element.innerHTML = new_html;
			if (element.className != new_class) element.className = new_class;
			}
		index_update = getSubString(new_data, 1, '\4');
		buffer_data = buffer_data.substring(pos + 1, buffer_data.length);
		pos = buffer_data.indexOf('\3');
		}
}

// -------------------------------------------------- //
// class manageBridge
// -------------------------------------------------- //
var so;
var manageBridge = {	
connect : function(server, port) 
{
	this.flashMovie.connect(server, port);
	//document.getElementById('debug1').innerHTML = 'connect';
},

stop : function() 
{
	if (mode_bridge != 2) return;
	this.flashMovie.write('STOP\3');
	//document.getElementById('debug2').innerHTML = 'stop';
},	

start : function() 
{
	if (mode_bridge != 2) return;
	this.flashMovie.write('START\3');
	//document.getElementById('debug2').innerHTML = 'start';
},		

loaded : function() 
{
	mode_bridge = 1;
	this.flashMovie = document.getElementById("bridge");
	//document.getElementById('debug1').innerHTML = 'loaded';
},

connected : function() 
{
	mode_bridge = 2;
	this.flashMovie.write(mode_bridge_dir + '\3');
	this.start();
	//document.getElementById('debug1').innerHTML = 'connected';
},

disconnected : function() 
{
	mode_bridge = 1;
	//document.getElementById('debug1').innerHTML = 'disconnected';
},	
	
ioError: function(msg) 
{
	mode_bridge = 0;
	//document.getElementById('debug1').innerHTML = 'ioError';
},						

securityError: function(msg) 
{
	mode_bridge = 0;
	//document.getElementById('debug1').innerHTML = 'securityError';
},								

receive: function(msg) 
{
	makeData(msg);
	//document.getElementById('debug4').innerHTML = 'receive';
}												
};

// -------------------------------------------------- //
// start
// -------------------------------------------------- //
function start(new_mode)
{
	if (mode == new_mode) return;
	//document.getElementById('debug1').innerHTML = '';
	//document.getElementById('debug2').innerHTML = '';
	//document.getElementById('debug3').innerHTML = '';
	//document.getElementById('debug4').innerHTML = '';
	//document.getElementById('debug5').innerHTML = '';
	//initialisation
	if (mode == -1) 
		{
		timer_id = 0;
		timer_id_update = 0;
		last_index = new Array(10);	
		}
	else
		{
		var edata = document.getElementById('data');
		if (edata != null) edata.innerHTML = '';	
		}
	mode = new_mode;
	//mise à jour des indexs
	index_update = 0;
	buffer_data = '';
	index_title = 1;
	if (mode == 1)
		{
		index_menu = 2;
		index_data = 9;
		}
	if (mode == 2)
		{
		index_menu = 3;
		index_data = 5;
		}
	if (mode == 3)
		{
		index_menu = 4;
		index_data = 6;
		}
	last_index[index_menu] = 0;
	last_index[index_data] = 0;
	//mise à jour des timers et socket
	if (timer_id != 0) 
		{
		clearTimeout(timer_id);
		timer_id = setTimeout("loadTimer()", 50);
		}
	else
		{
		timer_id = setTimeout("loadTimer()", 500);
		}
	if (timer_id_update != 0) 
		{
		clearTimeout(timer_id_update);
		timer_id_update = 0;
		if (mode == 1) timer_id_update = setTimeout("loadTimerUpdate()", 150);
		}
	else
		{
		if (mode == 1) timer_id_update = setTimeout("loadTimerUpdate()", 1500);	
		}
	if (mode == 1) manageBridge.start();
	else manageBridge.stop();
}

// -------------------------------------------------- //
// init
// -------------------------------------------------- //
function init(new_dir)
{
	mode_bridge_dir = new_dir;
	mode_update_dir = new_dir.replace('\\', ':');
	start(1);
}