// Client Environment Detection
var mb_common_client = {};
mb_common_client.clientBrowserOk = false;

mb_common_client.bType;
mb_common_client.bCSS = null;
mb_common_client.bVersion = 0;//$.browser.version;
mb_common_client.bWidth   = 0;
mb_common_client.bHeight  = 0;

mb_common_client.minMSIE     = 8.0;
mb_common_client.minMozilla  = 3.6;

mb_common_client.init = function() {
	mb_common_client.redirectUnsupported();
	mb_common_client.detectBrowser.init();
	mb_common_client.addBrowserClassToBody();
};

mb_common_client.redirectUnsupported = function() {            
	if($.browser.msie){
		mb_common_client.bType = "msie";
    } else if($.browser.mozilla){
     mb_common_client.bType = "mozilla";
	} else {
		mb_common_client.bType = "other";
	}

	var agent = navigator.userAgent;
	
	if (/Firefox[\/\s](\d+\.\d+)/.test(navigator.userAgent)){
		mb_common_client.bVersion = new Number(RegExp.$1);
	} else if (/MSIE (\d+\.\d+);/.test(navigator.userAgent)){
		mb_common_client.bVersion = new Number($.browser.version);
	} else if ($.browser.safari){
		mb_common_client.bVersion = new Number($.browser.version);
	}

	var text = "User Environment || " + navigator.userAgent + " ";
	
	if (window.innerWidth) {
		mb_common_client.bWidth  = window.innerWidth;
		mb_common_client.bHeight = window.innerHeight;
	} else if (document.documentElement && document.documentElement.clientWidth) { // IE 7+
		mb_common_client.bWidth  = document.documentElement.clientWidth;
		mb_common_client.bHeight = document.documentElement.clientHeight;
	} else if (document.body) {
		mb_common_client.bWidth  = document.body.clientWidth;
		mb_common_client.bHeight = document.body.clientHeight;
	}
	 

	mb_common_client.clientBrowserOk = 
		(mb_common_client.bType == "mozilla" && mb_common_client.bVersion >= mb_common_client.minMozilla) ||
		(mb_common_client.bType == "msie"    && mb_common_client.bVersion >= mb_common_client.minMSIE) ||
		(navigator.userAgent.indexOf("Safari")>-1) ||
		(navigator.userAgent.indexOf("Chrome")>-1) ||
		(navigator.userAgent.indexOf("AppleWebKit")>-1);

	// Display user system info in a hidden field
	$("#system").html("Browser: " + mb_common_client.bType + " v." + $.browser.version + " || Dimensions: " + mb_common_client.bWidth + "x" + mb_common_client.bHeight + "");

    if (!mb_common_client.clientBrowserOk) {
        top.location.href = '/about/support/system-requirements/please-upgrade/';  
    }
};

mb_common_client.addBrowserClassToBody = function(){
    if (mb_common_client.bCSS) {
        $('body').addClass(mb_common_client.bCSS);
        return;
    }
    
    var browser = "";
	switch(mb_common_client.detectBrowser.browser){
		case "Explorer":
		    browser = "ie"+mb_common_client.detectBrowser.version;
		break;
		case "Firefox":
		    browser = "ff";
		break;
		case "Chrome":
		    browser = "chrome"
		break;
		case "Safari":
		    browser = "safari"
		break;
		default:
		break;
	}
	$('body').addClass(browser);

};

mb_common_client.detectBrowser = {
	init: function () {
		this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
		this.version = this.searchVersion(navigator.userAgent)
			|| this.searchVersion(navigator.appVersion)
			|| "an unknown version";
		this.OS = this.searchString(this.dataOS) || "an unknown OS"; 
	},
	searchString: function (data) {
		for (var i=0;i<data.length;i++)	{
			var dataString = data[i].string;
			var dataProp = data[i].prop;
			this.versionSearchString = data[i].versionSearch || data[i].identity;
			if (dataString) {
				if (dataString.indexOf(data[i].subString) != -1)
					return data[i].identity;
			}
			else if (dataProp)
				return data[i].identity;
		}
	},
	searchVersion: function (dataString) {
		var index = dataString.indexOf(this.versionSearchString);
		if (index == -1) return;
		return parseFloat(dataString.substring(index+this.versionSearchString.length+1));
	},
	dataBrowser: [
		{
			string: navigator.userAgent,
			subString: "Chrome",
			identity: "Chrome"
		},
		{ 	string: navigator.userAgent,
			subString: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari",
			versionSearch: "Version"
		},
		{
			prop: window.opera,
			identity: "Opera"
		},
		{
			string: navigator.vendor,
			subString: "iCab",
			identity: "iCab"
		},
		{
			string: navigator.vendor,
			subString: "KDE",
			identity: "Konqueror"
		},
		{
			string: navigator.userAgent,
			subString: "Firefox",
			identity: "Firefox"
		},
		{
			string: navigator.vendor,
			subString: "Camino",
			identity: "Camino"
		},
		{		// for newer Netscapes (6+)
			string: navigator.userAgent,
			subString: "Netscape",
			identity: "Netscape"
		},
		{
			string: navigator.userAgent,
			subString: "MSIE",
			identity: "Explorer",
			versionSearch: "MSIE"
		},
		{
			string: navigator.userAgent,
			subString: "Gecko",
			identity: "Mozilla",
			versionSearch: "rv"
		},
		{ 		// for older Netscapes (4-)
			string: navigator.userAgent,
			subString: "Mozilla",
			identity: "Netscape",
			versionSearch: "Mozilla"
		}
	],
	dataOS : [
		{
			string: navigator.platform,
			subString: "Win",
			identity: "Windows"
		},
		{
			string: navigator.platform,
			subString: "Mac",
			identity: "Mac"
		},
		{
			   string: navigator.userAgent,
			   subString: "iPhone",
			   identity: "iPhone/iPod"
	    },
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]

};


mb_common_client.isIE = function(){
	return mb_common_client.detectBrowser.browser == "Explorer";
};

mb_common_client.isIELegacy = function(){
	return (mb_common_client.detectBrowser.browser == "Explorer" && mb_common_client.detectBrowser.version < 9);
};

mb_common_client.isFFLegacy = function(){
	return (mb_common_client.detectBrowser.browser == "Firefox" && mb_common_client.detectBrowser.version < 4);
}

mb_common_client.isSafari = function(){
	return mb_common_client.detectBrowser.browser == "Safari";
};

mb_common_client.isIphone = function(){
	return (navigator.userAgent.toLowerCase().indexOf('iphone')>-1 || navigator.userAgent.toLowerCase().indexOf('ipod')>-1);
};

mb_common_client.isIpad = function(){
	return (navigator.userAgent.toLowerCase().indexOf('ipad')>-1);
};

mb_common_client.isAndroid = function(){
	return (navigator.userAgent.toLowerCase().indexOf('android')>-1);
};

mb_common_client.isBlackberry = function(){
	return (navigator.userAgent.toLowerCase().indexOf('blackberry')>-1);
};

mb_common_client.isMobile = function(){
	return (
		mb_common_client.isIphone() ||
		mb_common_client.isAndroid() ||
		mb_common_client.isBlackberry() ||
		(navigator.userAgent.toLowerCase().indexOf('mobile')>-1)
	);
};

mb_common_client.isTouchscreen = function(){	
	if(mb_common_client.isIphone()||mb_common_client.isAndroid()){
		return true;
	}
	if(navigator.userAgent.toLowerCase().indexOf('ipad')>-1){
		return true;
	}
	return false;
};