var ajax_call_counter = 0;
var safariRateLimited = null;
var validationCallbacks = new Array();
var numbersOnly = new RegExp('^[0-9]*$');
var gDateFormat;
var isie6 = false; // Should be set by conditional comments on page.
var isie7 = false;
var isie8 = false;
var isie = window.clipboardData;

function CoreNamespace() {
	this.timer = 0;
	this.performSetHeights = true;
}

CoreNamespace.prototype.resetTimer = function () {
	this.timer = this.getTimer();
	console.log('timer reset: ' + this.timer);
};

CoreNamespace.prototype.logTime = function (label) {
	var datetime = new Date();
	if (label == null) label = '';
	var localTimer = this.getTimer();
	var duration = this.timer == 0 ? 0 : localTimer - this.timer;
	this.timer = localTimer;
	console.log(label + ': ' + duration);
};

CoreNamespace.prototype.getTimer = function (label) {
	var datetime = new Date();
	return datetime.getMinutes() * 60 * 1000 + datetime.getSeconds() * 1000 + datetime.getMilliseconds();
};

//gets the cookie, if it exists
function getCookieValue(cookiename) {
	var ck = document.cookie;
	var cn = cookiename + "=";
	var pos = ck.indexOf(cn);

	if (pos != -1) {
		var start = pos + cn.length;
		var end = ck.indexOf(";", start);
		if (end == -1) end = ck.length;
		var cookieValue = ck.substring(start, end);
		return (cookieValue);
	}

	return (null);
}

// Gets Json object using a given url.
function GetJson(url) {
	var result;
	var alreadySync = !$.ajaxSettings.async;
	if (!alreadySync)
		$.ajaxSetup({ async: false });
	$.post(url, function (data) {
		result = data;
	});
	if (!alreadySync)
		$.ajaxSetup({ async: true });
	return result;
}

//Update and maintain the value of "daysSinceLastLogin" cookie
function setDaysSinceLastLoginCookie() {
	var currentDate = new Date();
	var curDateStr = currentDate.getMonth() + 1 + '/' + currentDate.getDate() + '/' + currentDate.getFullYear();
	if ($.cookie('lastLoginDate') == null) {
		$.cookie('lastLoginDate', curDateStr, { path: '/' });
		$.cookie('daysSinceLastLogin', '0', { path: '/' });
	}
	else {
		var lastLoginDate = $.cookie('lastLoginDate');
		$.cookie('lastLoginDate', curDateStr, { path: '/' });
		$.cookie('daysSinceLastLogin', dayDifference(curDateStr, lastLoginDate), { path: '/', expires: 9999 });
	}
}

// Do not use in new code. Use jQuery with event.preventDefault().
function hookAnchorClick(anchor, fn) {
	/// <summary>Hooks an anchor onclick and prevents default HREF behavior.</summary>
	/// <param name="anchor" type="domElement">The DOM element to attach the event handler for.</param>
	/// <param name="fn" type="Function">Function to be called when anchor is clicked. Should have sender and event argument, in that order.</param>
	var clickHandler = function (event) {
		var sender;

		if (window.event) {
			event = window.event;
			sender = event.srcElement;
		}
		else
			sender = event.target;

		fn(sender, event);

		if (event.stopPropagation)
			event.stopPropagation();
		else
			event.cancelBubble = true;

		return false;
	}

	// HACK: MSIE/Opera onclick fails to operate correctly.
	if (isie || isie8 || isie7 || isie6 || (document.documentMode < 8) || window.opera)
		anchor.onmousedown = clickHandler;
	else
		anchor.onclick = clickHandler;
}

function beginRequest(sender, args) {
	document.body.style.cursor = "wait";
}

function pageLoaded(sender, args) {
	document.body.style.cursor = "default";
}

var ajaxSpinnerVisible = false;
// Called when async postbacks begins
function onAjaxPostBackStart(sender, args) {
	ajaxPostBackStart('Loading');
}

// Called when async postback ends
function onAjaxPostBackEnd(sender, args) {
	ajaxPostBackEnd();
}

// Show ajax process panel with a customized text
function ajaxPostBackStart(textProcessing) {
	if (!textProcessing || textProcessing == "")
		textProcessing = 'Loading';
	if (!ajaxSpinnerVisible) {
		var panelAjaxProgress = $("#divAjaxProgress"),
				divAjaxImgProgress = $("#divAjaxImgProgress"),
				panelAjaxShade = $("#divAjaxShade");

		if (panelAjaxProgress.length == 0) {
			//create divs on the fly
			panelAjaxProgress = $('<div id="divAjaxProgress" style="display:none;"></div>');
			panelAjaxShade = $('<div id="divAjaxShade"></div>');
			divAjaxImgProgress = $('<div id="divAjaxImgProgress" class="loading"><img src="/Common/images/ajax-loader.gif" /><p></p></div>');

			panelAjaxProgress.append(panelAjaxShade);
			panelAjaxProgress.append(divAjaxImgProgress);
			panelAjaxProgress.prependTo('body');

			panelAjaxProgress
				.css({ 'position': 'fixed', 'top': '0px', 'left': '0px', 'bottom': '0px', 'right': '0px',
					'text-align': 'center', 'border': '1px solid #666',
					'z-index': '90000000'
				});
			panelAjaxShade
				.css({ 'position': 'fixed', 'top': '0px', 'left': '0px', 'bottom': '0px', 'right': '0px',
					'background': '#fff', 'opacity': '0.5'
				});

			divAjaxImgProgress.css({ 'position': 'relative' });
		}

		ajaxSpinnerVisible = true;
		ajaxProcesingResizing();
		ajaxUpdateText(textProcessing);
		panelAjaxProgress.show();
		divAjaxImgProgress.show();

		$(window).bind('resize', ajaxProcesingResizing);
	}
}

// Hide ajax process panel
function ajaxPostBackEnd(noAnimation) {
	if (ajaxSpinnerVisible) {
		var panelAjaxProgress = $("#divAjaxProgress");
		var divAjaxImgProgress = $("#divAjaxImgProgress");

		if (noAnimation) {
			divAjaxImgProgress.hide();
			panelAjaxProgress.hide();
		} else {
			divAjaxImgProgress.fadeOut("fast", function () {
				panelAjaxProgress.hide();
			});
		}

		ajaxSpinnerVisible = false;
		$(window).unbind('resize', ajaxProcesingResizing);
	}
}

// Update ajax panel feedback text while panel is being displayed
function ajaxUpdateText(text) {
	if (ajaxSpinnerVisible) {
		var divAjaxImgProgress = $("#divAjaxImgProgress");
		divAjaxImgProgress.children('img').attr('alt', text).attr('title', text);
		divAjaxImgProgress.children('p').html(text);
	}
}

// Resize ajax panel when on window resize
function ajaxProcesingResizing() {
	if (ajaxSpinnerVisible) {
		var panelAjaxProgress = $("#divAjaxProgress");
		var divAjaxImgProgress = $("#divAjaxImgProgress");
		var panelAjaxShade = $("#divAjaxShade");

		panelAjaxProgress.height($(window).height()).width($(window).width());
		panelAjaxShade.height($(window).height()).width($(window).width());

		divAjaxImgProgress.css({ 'top': ($(window).height() / 2) - (divAjaxImgProgress.height() / 2) + 'px' });
	}
}

// Implements HTML5 placeholder attribute for browsers that do not support it (and for HTML5 server-side control).
var tmpPH = document.createElement('input');
var supportPH = (tmpPH.placeholder != null);
//var colorPH = '#c0c0c0';

var removePlaceholder = (supportPH ?
	function (elem) { } : function (elem) {
		if (elem != null) {
			if (elem.hidePlaceholder)
				elem.hidePlaceholder();

			elem.hidePlaceholder = null;
			elem.showPlaceholder = null;

			removeEvent(elem, 'focus', elem._ph_focus, false);
			removeEvent(elem, 'blur', elem._ph_onblur, false);
			removeEvent(elem, 'onmouseout', elem.ph_onmouseout, false);
			removeEvent(elem._ph_form, 'submit', elem._ph_form_submit, false);
		}
	});

var setPlaceholder = (supportPH ?
	function (elem) { } : function (elem) {
		if (elem != null) {
			if (elem.showPlaceholder != null)
				removePlaceholder(elem);

			var attrVal = elem.getAttribute('placeholder');

			elem.hidePlaceholder = function () {
				if (elem.value == attrVal) {
					if (elem.oldClassName != null)
						elem.className = elem.oldClassName;

					elem.value = '';
				}
			}

			elem.showPlaceholder = function () {
				if (elem.value == '') {
					if (attrVal == null)
						attrVal = '';
					elem.value = attrVal;

					var className = elem.className;
					className = (className == null ? '' : elem.className);
					elem.oldClassName = className;
					elem.className = className + ' fakePlaceholder';
				}
			}

			if (elem.value == null || elem.value == '')
				elem.showPlaceholder();

			elem._ph_focus = function (event) {
				elem.hidePlaceholder();
			};

			elem._ph_blur = function (event) {
				elem.showPlaceholder();
			};

			addEvent(elem, 'focus', elem._ph_focus, false);
			addEvent(elem, 'blur', elem._ph_blur, false);

			if (elem.form) {
				elem._ph_form = elem.form;

				elem._ph_form_submit = function (event) {
					if (elem)
						removePlaceholder(elem);
				};

				addEvent(elem._ph_form, 'submit', elem._ph_form_submit, false);
			}
		}
	});

//When programtically form.submit() is invoked, the placeholders are not removed automatically (onsubmit event is not called).
//This function could be invoked before form.submit() if necessary.
function removePlaceHolders() {
	$('input[placeholder]').each(function () {
		removePlaceholder($(this).get(0));
	});
}

var setPlaceHolder = setPlaceholder;

// Validation plugs for runat=server form in master page.
function headerValidationCallback() {
	for (var i = 0; i < validationCallbacks.length; i++) {
		if (!validationCallbacks[i]())
			return false;
	}
	return true;
}

function addHeaderValidator(method) {
	validationCallbacks.push(method);
}

function getBrowser() {
	var N = navigator.appName, ua = navigator.userAgent, tem;
	var M = ua.match(/(opera|chrome|safari|firefox|msie)\/?\s*(\.?\d+(\.\d+)*)/i);
	if (M && (tem = ua.match(/version\/([\.\d]+)/i)) != null) M[2] = tem[1];
	M = M ? [M[1], M[2]] : [N, navigator.appVersion, '-?'];
	return M[0];
}

function getBrowserVersion() {
	var N = navigator.appName, ua = navigator.userAgent, tem;
	var M = ua.match(/(opera|chrome|safari|firefox|msie)\/?\s*(\.?\d+(\.\d+)*)/i);
	if (M && (tem = ua.match(/version\/([\.\d]+)/i)) != null) M[2] = tem[1];
	M = M ? [M[1], M[2]] : [N, navigator.appVersion, '-?'];
	return M[1];
}

function isLegacyBrowser() {
	var browser = getBrowser(),
	browserVersion = getBrowserVersion(),
	browserMajorVersion = Number(browserVersion.split('.')[0]);

	var legacyBrowser = ((browser == 'MSIE' && browserMajorVersion < 10) || (browser == 'Chrome' && browserMajorVersion < 30) || (browser == 'Firefox' && browserMajorVersion < 24) || (browser == 'Netscape' && browserMajorVersion != 5)
	|| (browser == 'Safari' && browserMajorVersion < 5) || (browser != 'MSIE' && browser != 'Chrome' && browser != 'Firefox' && browser != 'Safari' && browser != 'Netscape'));

	return legacyBrowser;
}

function setTrackBrowserCookie(trackValue) {
	var date = new Date();
	date.setYear(2100);
	document.cookie += ("; expires=" + date.toUTCString());
	document.cookie = "CP_TrackBrowser=" + JSON.stringify(trackValue) + "; expires=" + date.toUTCString() + "; path=/";
};

function getTrackBrowserCookie() {
	var trackBrowser = { doNotShowLegacyMsg: false, supportNewUI: true };
	var trackBrowserRaw = getCookieValue('CP_TrackBrowser');
	if (trackBrowserRaw != null) {
		trackBrowser = JSON.parse(trackBrowserRaw);
	} else {
		trackBrowser.legacy = isLegacyBrowser();
		trackBrowser.isMobile = navigator.userAgent.match(/(iPad)|(iPhone)|(iPod)|(android)|(webOS)/i) || false;
		setTrackBrowserCookie(trackBrowser);
	}
	return trackBrowser;
}

function browserFailOvers() {
	var trackBrowser = getTrackBrowserCookie();

	if (trackBrowser.legacy && window.isModuleUsingAngular && trackBrowser.supportNewUI) {
		trackBrowser.supportNewUI = false;
		setTrackBrowserCookie(trackBrowser);
		window.location.reload(true); //reload to not show new UI
		return;
	}

	if (trackBrowser.legacy && !trackBrowser.isMobile && !trackBrowser.doNotShowLegacyMsg && !$('body').hasClass('mobile') && !$('body').hasClass('narrow')) {
		$.ajax({
			url: '/Site/Browser/Message',
			type: 'GET',
			success: function (response) {
				$('#divToolbars').append(response);

				$('.browserMessage a.dismiss').click(function (e) {
					e.preventDefault();
					trackBrowser.doNotShowLegacyMsg = true;
					setTrackBrowserCookie(trackBrowser);
					$('.browserMessage').slideUp();
				});

				$('.browserMessage').slideDown();
			}
		});
	}
}