var http = createRequest();
var userValidationLink = createRequest();
var emailValidationLink = createRequest();

function createRequest(v) {
    try {
    	request = new XMLHttpRequest();
    	} catch (trymicrosoft) {
    	try {
    		request = new ActiveXObject("Msxm12.XMLHTTP");
    		} catch (othermicrosoft) {
    		try {
    			request = new ActiveXObject("Microsoft.XMLHTTP");
    		} catch (failed) {
    			request = null;
    		}
    	}
    }
    if (request == null) {
    	alert("Error creating request object, please check your browser javascript support.");
    } else {
    	return request;
    }
};

function focusObj(obj,defaultType) {
	var defaultValue = obj.getAttribute("value");
	
	if (defaultType == "password") obj.setAttribute("type", "password");
	
	if (obj.value == defaultValue || obj.value == ""){
		obj.value = "";
		obj.style.color = "#747fa4";
	}
};
function blurObj(obj,defaultType) {
	var defaultValue = obj.getAttribute("value");
	
	if (defaultType == "password") obj.setAttribute("type", "password");
	
	if (obj.value == defaultValue || obj.value == ""){
		obj.style.color = "#bdc3d7";
		obj.value= defaultValue;
		obj.setAttribute("type", "text");
	}
};
function LoginHandler(actionURL) {
	this._action = actionURL;
};

LoginHandler.prototype = {
	submit: function(email,pass){
		if (email != "username" && pass != "password")
		{
		    http.open("GET", this._action,1);
			http.onreadystatechange = function (){
				if (http.readyState == 4){
					str = http.responseText;
				    spass = sha1Hash(str+sha1Hash(pass)+str);
					rememberMe = document.getElementById('rememberMeCheckbox');
					data = "email="+email+"&data="+spass+"&remember="+rememberMe.checked+"&k="+str;
					http.open("POST",'/bouncer',1);
					http.onreadystatechange = function (){
				    	if (http.readyState == 4){
							var response = eval('('+http.responseText+')');
				    		if (response.loginResult.toLowerCase() == "true"){
				    			window.location = "/site-admin/";
				    		} else {
								var fbdiv = document.getElementById('loginFeedback');
								fbdiv.innerHTML = "Login Incorrect";

				    			// $Obj("loginForm").FadeOut(100, function() {
				    			// 					    			$Obj("loginForm").FadeIn(150, function() {
				    			// 						    			$Obj("loginForm").FadeOut(200, function() {
				    			// 							    			$Obj("loginForm").FadeIn(300, function() {
				    			// 							    			});
				    			// 						    			});
				    			// 					    			});
				    			// });
				    		}
				    	}
				    };
				    http.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
				    http.send(data);
				}
			};
		    http.send(null);
	    }
	}
};

function ForgotHandler(formID) {
	this._formID = formID;
	this._form = $Obj(formID);
	this._username = "";
	this._email = "";
	this._usernameAvailable = false;
	this._emailAvailable = false;
};
ForgotHandler.prototype = {
	submit: function() {
		if (this.validate()){
			var email		= $Obj('forgot_email').value;
			var data = "e="+email;
			http.open("POST",'scripts/resetPass.php',1);
			http.onreadystatechange = function (){
		    	if (http.readyState == 4){
		    		if (http.responseText == "1"){
						Forgot.responseDiv = document.createElement("div");
						Forgot.responseDiv.setAttribute("class", "serverResponse");
						Forgot.responseDiv.innerHTML = "Please check your email within 24 hours to complete the reset password process.";
						Forgot._form.appendChild(Forgot.responseDiv);
		    		} else {
		    			alert("Unable to reset because "+http.responseText);
		    		}
		    	}
		    };
		    http.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
		    http.send(data);
		}
	},
	validate: function() {
		var email		= $Obj('forgot_email').value;
		if (email.indexOf("@") < 1) return false;
		else return true;
	},
	close: function() {
		$Obj('forgot_email').value = "";
		Forgot._form.removeChild(Forgot.responseDiv);
		this.cancel();
	},
	cancel: function() {
		$Obj('forgotForm').FadeOut(250,function() {$Obj('loginForm').FadeIn();});
		
	}

};

function SaveNewPassword(p,p2,k) {
	if (p == p2 && k != undefined) {
		var pass = sha1Hash(p);
		var postData = "p="+pass+"&k="+k;
		$.fn.ajax("finishPassReset.php", "post", postData, function(data) {
			if (data == 1) window.location = "index.php";
		});
	} else {
		alert("Passwords do not match!");
	}
};


function $Obj(id){
	obj = document.getElementById(id);
	obj.Effect 		= function(t,d,c) {new Effect(t,d,c,this);};
	obj.Hide		= function() {if (typeof this != "function"){ this.style.opacity = 0;this.style.display = "none";}};
	obj.Show		= function() {if (typeof this != "function"){ this.style.display = "block";}};
	obj.FadeIn		= function(d,c) {new Effect('fadeIn',d,c,this);};
	obj.FadeOut		= function(d,c) {new Effect('fadeOut',d,c,this);};

	return obj;
};

// ***********************************************
// Secure Hash Javascript written by Chris Veness
// © 2002-2005 Chris Veness
// ***********************************************


function sha1Hash(msg)
{
    // constants [4.2.1]
    var K = [0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6];

    // PREPROCESSING 
 
    msg += String.fromCharCode(0x80); // add trailing '1' bit to string [5.1.1]

    // convert string msg into 512-bit/16-integer blocks arrays of ints [5.2.1]
    var l = Math.ceil(msg.length/4) + 2;  // long enough to contain msg plus 2-word length
    var N = Math.ceil(l/16);              // in N 16-int blocks
    var M = new Array(N);
    for (var i=0; i<N; i++) {
        M[i] = new Array(16);
        for (var j=0; j<16; j++) {  // encode 4 chars per integer, big-endian encoding
            M[i][j] = (msg.charCodeAt(i*64+j*4)<<24) | (msg.charCodeAt(i*64+j*4+1)<<16) | 
                      (msg.charCodeAt(i*64+j*4+2)<<8) | (msg.charCodeAt(i*64+j*4+3));
        }
    }
    // add length (in bits) into final pair of 32-bit integers (big-endian) [5.1.1]
    M[N-1][14] = ((msg.length-1) >>> 30) * 8;
    M[N-1][15] = ((msg.length-1)*8) & 0xffffffff;

    // set initial hash value [5.3.1]
    var H0 = 0x67452301;
    var H1 = 0xefcdab89;
    var H2 = 0x98badcfe;
    var H3 = 0x10325476;
    var H4 = 0xc3d2e1f0;

    // HASH COMPUTATION [6.1.2]

    var W = new Array(80); var a, b, c, d, e;
    for (var i=0; i<N; i++) {

        // 1 - prepare message schedule 'W'
        for (var t=0;  t<16; t++) W[t] = M[i][t];
        for (var t=16; t<80; t++) W[t] = ROTL(W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16], 1);

        // 2 - initialise five working variables a, b, c, d, e with previous hash value
        a = H0; b = H1; c = H2; d = H3; e = H4;

        // 3 - main loop
        for (var t=0; t<80; t++) {
            var s = Math.floor(t/20); // seq for blocks of 'f' functions and 'K' constants
            var T = (ROTL(a,5) + f(s,b,c,d) + e + K[s] + W[t]) & 0xffffffff;
            e = d;
            d = c;
            c = ROTL(b, 30);
            b = a;
            a = T;
        }

        // 4 - compute the new intermediate hash value
        H0 = (H0+a) & 0xffffffff;  // note 'addition modulo 2^32'
        H1 = (H1+b) & 0xffffffff; 
        H2 = (H2+c) & 0xffffffff; 
        H3 = (H3+d) & 0xffffffff; 
        H4 = (H4+e) & 0xffffffff;
    }

    return H0.toHexStr() + H1.toHexStr() + H2.toHexStr() + H3.toHexStr() + H4.toHexStr();
}

//
// function 'f' [4.1.1]
//
function f(s, x, y, z) 
{
    switch (s) {
    case 0: return (x & y) ^ (~x & z);
    case 1: return x ^ y ^ z;
    case 2: return (x & y) ^ (x & z) ^ (y & z);
    case 3: return x ^ y ^ z;
    }
}

//
// rotate left (circular left shift) value x by n positions [3.2.5]
//
function ROTL(x, n)
{
    return (x<<n) | (x>>>(32-n));
}

//
// extend Number class with a tailored hex-string method 
//   (note toString(16) is implementation-dependant, and 
//   in IE returns signed numbers when used on full words)
//
Number.prototype.toHexStr = function()
{
    var s="", v;
    for (var i=7; i>=0; i--) { v = (this>>>(i*4)) & 0xf; s += v.toString(16); }
    return s;
};