/**
 * This is the Code 42 Software application extension to jQuery.  jQuery must
 * already be loaded
 * This includes:
 * auth : authentication
 * url : URL manipulation routines
 * safe : null-safe value routines
 * date : date parsing routines
 * nav : nav routines
 */

////////////////////////////////////////////////////////////////////////////////
//
// Browser validation code - Jquery 1.2.x does *not* work in Safari 2 or older!!!
// alert($.browser.safari + $.browser.version);
//
////////////////////////////////////////////////////////////////////////////////

if ($.browser.safari && $.browser.version < 522) {
	top.location.href="incompatible.html";
}

////////////////////////////////////////////////////////////////////////////////
//
// Required native Javascript / JQuery extensions
//
////////////////////////////////////////////////////////////////////////////////

// Date formatting 
Date.prototype.format=function(format){var returnStr='';var replace=Date.replaceChars;for(var i=0;i<format.length;i++){var curChar=format.charAt(i);if(replace[curChar]){returnStr+=replace[curChar].call(this);}else{returnStr+=curChar;}}return returnStr;};Date.replaceChars={shortMonths:['Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'],longMonths:['January','February','March','April','May','June','July','August','September','October','November','December'],shortDays:['Sun','Mon','Tue','Wed','Thu','Fri','Sat'],longDays:['Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday'],d:function(){return(this.getDate()<10?'0':'')+this.getDate();},D:function(){return Date.replaceChars.shortDays[this.getDay()];},j:function(){return this.getDate();},l:function(){return Date.replaceChars.longDays[this.getDay()];},N:function(){return this.getDay()+1;},S:function(){return(this.getDate()%10==1&&this.getDate()!=11?'st':(this.getDate()%10==2&&this.getDate()!=12?'nd':(this.getDate()%10==3&&this.getDate()!=13?'rd':'th')));},w:function(){return this.getDay();},z:function(){return"Not Yet Supported";},W:function(){return"Not Yet Supported";},F:function(){return Date.replaceChars.longMonths[this.getMonth()];},m:function(){return(this.getMonth()<9?'0':'')+(this.getMonth()+1);},M:function(){return Date.replaceChars.shortMonths[this.getMonth()];},n:function(){return this.getMonth()+1;},t:function(){return"Not Yet Supported";},L:function(){return"Not Yet Supported";},o:function(){return"Not Supported";},Y:function(){return this.getFullYear();},y:function(){return(''+this.getFullYear()).substr(2);},a:function(){return this.getHours()<12?'am':'pm';},A:function(){return this.getHours()<12?'AM':'PM';},B:function(){return"Not Yet Supported";},g:function(){return this.getHours()%12||12;},G:function(){return this.getHours();},h:function(){return((this.getHours()%12||12)<10?'0':'')+(this.getHours()%12||12);},H:function(){return(this.getHours()<10?'0':'')+this.getHours();},i:function(){return(this.getMinutes()<10?'0':'')+this.getMinutes();},s:function(){return(this.getSeconds()<10?'0':'')+this.getSeconds();},e:function(){return"Not Yet Supported";},I:function(){return"Not Supported";},O:function(){return(-this.getTimezoneOffset()<0?'-':'+')+(Math.abs(this.getTimezoneOffset()/60)<10?'0':'')+(Math.abs(this.getTimezoneOffset()/60))+'00';},T:function(){var m=this.getMonth();this.setMonth(0);var result=this.toTimeString().replace(/^.+ \(?([^\)]+)\)?$/,'$1');this.setMonth(m);return result;},Z:function(){return-this.getTimezoneOffset()*60;},c:function(){return"Not Yet Supported";},r:function(){return this.toString();},U:function(){return this.getTime()/1000;}};

// Parse ISO8601 formats to Dates
Date.parseISO8601 = function(dString) {var regexp = /(\d\d\d\d)(-)?(\d\d)(-)?(\d\d)(T|\s)?(\d\d)(:)?(\d\d)(:)?(\d\d)(\.\d+)?(Z|([+-])(\d\d)(:)?(\d\d))/;var _date = new Date();if (dString.toString().match(new RegExp(regexp))) {var d = dString.match(new RegExp(regexp));var offset = 0;_date.setUTCDate(1);_date.setUTCFullYear(parseInt(d[1],10));_date.setUTCMonth(parseInt(d[3],10) - 1);_date.setUTCDate(parseInt(d[5],10));_date.setUTCHours(parseInt(d[7],10));_date.setUTCMinutes(parseInt(d[9],10));_date.setUTCSeconds(parseInt(d[11],10)); if (d[12]) _date.setUTCMilliseconds(parseFloat(d[12]) * 1000); else _date.setUTCMilliseconds(0);if (d[13] != 'Z') {offset = (d[15] * 60) + parseInt(d[17],10);offset *= ((d[14] == '-') ? -1 : 1);_date.setTime(_date.getTime() - offset * 60 * 1000);}}else {_date.setTime(Date.parse(dString));}return _date;}

// Add fadeToggle to jQuery
$.fn.fadeToggle = function(speed, easing, callback) { return this.animate({opacity: 'toggle'}, speed, easing, callback);};


////////////////////////////////////////////////////////////////////////////////
//
// Start c42 library
//
////////////////////////////////////////////////////////////////////////////////
if (!$.c42) {
	$.c42 = {}; // Create the c42 plugin namespace if it is not already
}

////////////////////////////////////////////////////////////////////////////////
//
// c42 Script Loader
// This is essential to loading scripts and making sure they load out of
// a common location
//
////////////////////////////////////////////////////////////////////////////////
if (!$.c42.scriptHome) {
	$.c42.scriptHome = "../common/js"; // Create the base url directory for loading scripts
}

/**
 * Load a remote script on demand only if it hasn't been loaded.
 * This is primarily used internally by the c42 framework for managing 
 * javascript library dependencies
 */ 
$.c42.load=function(url) {
	if ($.c42._includeTable == undefined) {
		$.c42._includeTable = {};
	}
	if ($.c42._includeTable[url] == undefined) {
		if (url.indexOf("/") == -1) {
			url = $.c42.scriptHome + "/" + url;
		}
		$.c42._includeTable[url] = true;
		$.ajax({
			url : url,
			type : "GET",
			async:false,
			dataType: "script",
			error : function(request, status, error) {
				// This used to be an alert, but we don't want non-developers being alarmed about it
				$.c42.logError("Unable to load " + url);
			}
		})
	}
}

$.c42.load("jquery.inc.pack.js"); // always include client side include 

////////////////////////////////////////////////////////////////////////////////
//
// Authentication extensions
// The following library extension handles standard Code 42 authentication
// via REST.  
//
// $c42.authData - This is your authentication session data
// $c42.authToken() - Call this to perform token based authentication 
// $c42.auth() - Call this to perform username/password authentication
// $c42.deauth() - Deauthorize a session
//
////////////////////////////////////////////////////////////////////////////////


/**
 * Authentication constants
 */
$.c42.AUTH_COOKIE_KEY="user";
$.c42.AUTH_HEADER_TOKEN="TOKEN ";
$.c42.AUTH_HEADER_BASIC="BASIC ";
$.c42.AUTH_REST_URL="/rest/auth";

/**
 * You can check the authData from an authentication request 
 * using this object
 */
$.c42.authData = {
	set : function(data) {
		this.username = data.username; // Set the authentication information in an authData variable 
		this.userId = data.userId; // Set the authentication information in an authData variable 
		this.authToken = data.authToken;
		this.orgId=data.orgId;
		this.admin=data.admin;
	}
};

/**
 * Check if session is authorized.  If we have cookie authentication enabled,
 * then we can check for the C42 authentication token.  If the session is not
 * authenticated, we redirect to the unauthorized URL.
 * 
 * This method is synchronous
 *
 * @param unathorizedURL URL to redirect to if session is unauthorized
 */ 
$.c42.authToken=function(unauthorizedURL) {
	$.c42.load('jquery.cookie.js'); // need cookie lib
	if (!unauthorizedURL) {
		throw new Error("c42.auth() unauthorizedURL undefined");
	}
	// Check if we have a valid cookie - if not, redirect to unauthorizedURL
	var key = $.cookie($.c42.AUTH_COOKIE_KEY);
	if (key) {
		var auth = $.c42.AUTH_HEADER_TOKEN + key;
		$.ajax({
			url : $.c42.AUTH_REST_URL,
			type : "GET",
			async:false,
			dataType: "json",
			contentType: "application/json",
			beforeSend : function(req) {
				req.setRequestHeader("Authorization-Challenge","false"); // no challenge!
				req.setRequestHeader("Authorization",auth);
			},
			success : function(data, textStatus) {
				$.c42.authData.set(data);
			},
			error : function(request, status, error) {
				$.c42.logError("Unauthorized " + request +":" + status + ":" + error);
				document.location.href= unauthorizedURL; // unauthorized
			}
		})
	} else { // no cookie set - go to unauthorized URL
		document.location.href= unauthorizedURL; // unauthorized
	}
};

/**
 * Attempt to authenticate a username and password.  Asynch.  Requires
 * callback functions.
 * @param username Username to auth
 * @param password
 * @param successCb Callback function if auth is successful
 * @param errorCb Callback function if auth fails
 */
$.c42.auth = function(username,password,successCb, errorCb) {
	$.c42.load('base64.js'); // include base64 library
	$.c42.load('jquery.cookie.js'); // need cookie lib
	
	var auth = encodeURI(username) + ":" + encodeURI(password);
	auth = $.c42.AUTH_HEADER_BASIC + Base64.encode(auth);

	$.ajax({
		url : $.c42.AUTH_REST_URL,
		type : "GET",
		dataType: "json",
		contentType: "application/json",
		beforeSend : function(req) {
			req.setRequestHeader("Authorization-Challenge","false"); // no challenge!
			req.setRequestHeader("Authorization",auth);
		},
		success : function(data, textStatus) {
			// Set the authentication cookie
			$.c42.authData.set(data);
			$.cookie($.c42.AUTH_COOKIE_KEY, data.authToken, $.c42.authCookieOptions()); // set the cookie for auto-auth
			if (successCb) {
				successCb(data,textStatus);
			}
		},
		error : (errorCb ? errorCb : 		
			function(xhr, status, error) {
				if (xhr.status == 503) {
					if (xhr.getResponseHeader("Retry-After")) {
						alert("LDAP lookup is slow.  Try again in a minute.");
					} else {
						alert("Login service is unavailable.  (503)");
					}
				} else if (xhr.status == 401) {
					alert("Your email address and/or password is invalid.  Please try again.");
				} else if (xhr.status == 404) {
					alert("Login service is unavailable.  (404)");
				} else {
					alert('Error during login: statusCode: ' + xhr.status);
				}
			})
	});
};


/**
 * De-authorize / Sign out!  Calling this will remove the authorization cookie.
 * and then redirect user to an unauthorized landing url
 */
$.c42.deauth=function(unauthorizedURL) {
	$.c42.load('jquery.cookie.js'); // need cookie lib
	$.cookie($.c42.AUTH_COOKIE_KEY, null, $.c42.authCookieOptions()); // unset the cookie
	if (unauthorizedURL != undefined) {
		document.location.href=unauthorizedURL; // redirect to unauthorized url
	}
	return false;
}

/**
 * Provide this as the 'beforeSend' function to auto-login on REST services
 * @param req The request object
 */
$.c42.authBeforeSend = function(req) {
	$.c42.load('jquery.cookie.js'); // need cookie lib
	var authToken = $.cookie($.c42.AUTH_COOKIE_KEY);
	if (authToken) {
		var auth = $.c42.AUTH_HEADER_TOKEN + authToken;
		req.setRequestHeader("Authorization",auth);
	}
}

/**
 * Provides options so the cookie expires 30 minutes from now
 */
$.c42.authCookieOptions = function() {
	var date = new Date();
	date.setTime(date.getTime() + (30 * 60 * 1000)/* 30 minutes */);
	$.c42.AUTH_COOKIE_OPTIONS = { path: '/', expires: date };
	//alert("Expires: " + date);
    return $.c42.AUTH_COOKIE_OPTIONS;
}


/**
 * Refresh the expiration date on the auth cookie for 30 minutes from now
 */
$.c42.authCookieRefresh = function() {
	$.c42.load('jquery.cookie.js'); // need cookie lib
	var authToken = $.cookie($.c42.AUTH_COOKIE_KEY);
	if (authToken) {
		var options = $.c42.authCookieOptions();
		//alert("Auth cookie will expire at: " + options.expires);
		$.cookie($.c42.AUTH_COOKIE_KEY, authToken, options);
	}
}

// Refresh the cookie expire time every time we load this script
$.c42.authCookieRefresh();


////////////////////////////////////////////////////////////////////////////////
//
// Error logging extensions
//
// $.c42.log : Log a message to the error console
//
////////////////////////////////////////////////////////////////////////////////

$.c42.logError = function(msg) {
	throw msg;
}

$.c42.log = function(msg) {
	if (console && console.log) {
		console.log(msg); // Firebug, Safari, etc
	} else if (Components && Components.utils && Components.utils.reportError) {
		Components.utils.reportError(msg); // Firefox sans Firebug
	} else if (opera && opera.postError) {
		opera.postError(msg); // Opera
	} else {
		throw msg;
	}
}


////////////////////////////////////////////////////////////////////////////////
//
// AJAX Transport extensions
//
// $.c42.load : Load a script ONCE and only ONCE
// $.c42.postJSON : Post object as JSON
//
////////////////////////////////////////////////////////////////////////////////

/**
 * Post an object as a JSON payload to a remote URL
 * @param obj The object containing custom Ajax options and 'data' to JSONize
 */
$.c42.postJSON=function(obj) {
	$.c42.load('json2.js'); // make sure that we load the correct json lib
	var block = {}
	block.url = obj.url
	block.success = obj.success
	if (obj.error) { block.error = obj.error }
	block.timeout = 30000 /* Default value of 30000ms = 30 sec */
	if (obj.timeout) { block.timeout = obj.timeout }
	
	block.type = "POST"
	block.contentType = "application/json"
	block.dataType = "json"
	
	// Note the use of an external JSON parser here.  If JQuery is passed a raw data object it will attempt to
	// "serialize" it, which basically amounts to an encoding resembling a GET query string.  There wasn't any
	// obvious way to make it use JSON for the encoding, so we had to import an external processor.  The "json"
	// string in the syscall indicates the expected return type and not the expected encoding for the outgoing
	// request.
	block.data = JSON.stringify(obj.data)
	
	$.ajax(block)
}

/**
 * Encapsulate all of the values in a form in a single object
 * @param id The id of the form to select from
 * @return data object containing element id,value pairs
 */
$.c42.getFormData=function(id) {
	// Select all input or select elements underneath the named form
	var selector = "form#" + id + " input,select,textarea"
	var data = {}
	$(selector).each(function(i) {
		var thisid = this.id
		if (thisid) {
			data[thisid] = $(this).val()
		}
	})

	return data
}

////////////////////////////////////////////////////////////////////////////////
//
// URL manipulation and redirect extensions
// The following library extension handles standard Code 42 URL manipulation
//
// $.c42.redirect
// $.c42.redirectSSL
// $.c42.getResourceName
////////////////////////////////////////////////////////////////////////////////


/**
 * Redirect to a relative URL on a new host IF the required hostname is present
 */
$.c42.redirect = function (requiredHostname,targetHostname) {
	if (document.location.host.indexOf(requiredHostname) != -1) {
		var l = document.location;
		var url = l.protocol + "//" + targetHostname + l.pathname;
		if (l.hash) url += l.hash;
		if (l.search) url += l.search;
		document.location = url;
	}
}

/**
 * Redirect to an HTTPS url if you match the current hostname
 * @param requiredHostname
 * @return
 */
$.c42.redirectSSL = function (requiredHostname,targetHostname) {
	var l = document.location;
	if (l.host.indexOf(requiredHostname) != -1) {
		if (l.protocol.indexOf("http:") != -1) {
		  var host = targetHostname == undefined?l.host:targetHostname;
			var url = "https://" + host + l.pathname;
			if (l.hash) url += l.hash;
			if (l.search) url += l.search;
			document.location = url;
		}
	}
}

/**
 * Returns just the resource portion of the URL
 */
$.c42.getResourceName = function() {
	var file_name = document.location.href;
	var end = (file_name.indexOf("?") == -1) ? file_name.length : file_name.indexOf("?");
	end = (file_name.indexOf("#") == -1)?end:file_name.indexOf("#"); // chop anchors too
	return file_name.substring(file_name.lastIndexOf("/")+1, end);
}



////////////////////////////////////////////////////////////////////////////////
//
// This is the Code 42 Software application extension to jQuery
// for safe string operations. i.e. if the string is null or undefined
//
////////////////////////////////////////////////////////////////////////////////

$.c42.safe = function(value) {
	return value?value:"&nbsp;";
}

$.c42.safeTimestamp = function(ts) {
	return ts?ts.substring(0,16).replace("T"," "):"&nbsp;";
}

$.c42.safeDate = function(ts, formatStr) {
	if (ts) {
		if (!formatStr) formatStr = "m/d/Y"; //"m/d/Y h:iA";
		var d = Date.parseISO8601(ts);
		return d.format(formatStr);
	}
	return "&nbsp;";
}
$.c42.safeDateTime = function(ts) {
	return $.c42.safeDate(ts,"m/d/Y h:iA");
}

////////////////////////////////////////////////////////////////////////////////
//
// This is the Code 42 Software application extension to jQuery
// for status.  Requires base.css and std.css
//
////////////////////////////////////////////////////////////////////////////////
$.c42.setStatus = function(text, showForMillis) {
	$("#status").removeClass("status-error");
	$.c42._setStatus(text, showForMillis);
}

$.c42.setStatusError = function(text, showForMillis) {
	$("#status").addClass("status-error");
	$.c42._setStatus(text, showForMillis);
}

$.c42.statusTimerId = 0; // keep track of status timer id

/**
 * Private helper function for actually setting the status text
 * Hides the status after a few seconds by default.
 */
$.c42._setStatus = function(text, showForMillis) {
	if (!showForMillis) showForMillis = 5000;
	// Display the status widget
	var statusEl = $("#status");

	if (statusEl) {
		statusEl.text(text);
		if ($.c42.statusTimerId != 0) {
			$.c42.clearStatus();
		}
		
		if (!statusEl.is(":visible")) {
			statusEl.slideDown("fast");
		}
		$.c42.statusTimerId = statusTimerId = setTimeout("$.c42.clearStatus(true)", showForMillis);
		
	}
}

/**
 * Clear the status
 */
$.c42.clearStatus = function(shouldHide) {
	clearTimeout($.c42.statusTimerId);
	$.c42.statusTimerId = 0;
	if (shouldHide) {
		$("#status").slideUp("fast");
	}
}

/**
 * Show an element for a certain number of milliseconds
 */
$.c42.showFor = function(selecter, millis) {
	$(selecter).show();
	setTimeout("$('" + selecter + "').hide('slow');", millis);
}


////////////////////////////////////////////////////////////////////////////////
//
// This is the Code 42 Software application extension to jQuery
// for page navigation controls.  Requires base.css and std.css
//
////////////////////////////////////////////////////////////////////////////////
$.c42.nav = {};

/**
 * Selected nav items are set by matching 
 * the start of the resource with the nav item.
 * For example, anything starting with 'download' will match
 * the nav item 'download'.
 */
$.c42.nav.init = function () {
	var resourceName = $.c42.getResourceName();
	$("#nav").find("a").each(
		function() {
			// Toggle selected state
			if (resourceName.indexOf(this.id) == 0) { // starts with id anchor
				$("#" + this.id).parent("li").addClass("selected"); 
			}
		}
	);
	
	// Assign click, hover support
	$("#nav > ul > li").each(
		function() {
			var anchor = $(this).find("a:first");
			$.c42.nav.setClick(this,anchor);
			$.c42.nav.setHover(this);
		}
	);

	// Assign home click support
	$.c42.nav.setClick( $("#home") );
	
	// Customize search box for safari
	if ($.browser.safari) {
		$("#search-input").attr("results","5");
	}
}

/**
 * Selected menu items are set by matching resource 
 */
$.c42.nav.menuInit = function () {
	var resourceName = $.c42.getResourceName();
	var el = $(".menu").find("a[href='" + resourceName +"']:first");
	if (el) { // match the element whose href is the current document
		el.parent("li").addClass("selected");
	}

	// Add hover support
	// Add click 'anywhere support
	$(".menu").find("li").each(
		function() {
			var anchor=$(this).find("a:first");		
			$(this).hover(
				function() { $(this).addClass("hover"); anchor.addClass("hover"); },
				function() { $(this).removeClass("hover"); anchor.removeClass("hover"); }
			);
			$.c42.nav.setClick(this,anchor);
		}
	);
}

/**
 * Set an item click to the same href as an anchor
 */
$.c42.nav.setClick = function (item, anchor) {
	var href = anchor == undefined?"index.html":$(anchor).attr("href");
	$(item).click(
		function() { top.location.href=href; }
	);	
}

/**
 * Assign a hover over effect for list items
 */
$.c42.nav.setHover = function (item) {
	if (!$(item).hasClass("selected")) {
		$(item).hover(
			function() { $(item).addClass("hover");},
			function() { $(item).removeClass("hover");}
		);
	}
}