var _analyticsq = _analyticsq || [];

function _readCookie(cookieName) {	
	var theCookie = "" + document.cookie;			
	var ind= theCookie.indexOf(cookieName);
	if (ind == -1 || cookieName == "") { 
		return null;
	}
	
	var ind1 = theCookie.indexOf(';', ind);
	if (ind1 == -1) { 
		ind1 = theCookie.length;
	} 
	
	return unescape(theCookie.substring(ind + cookieName.length + 1, ind1));
}

var WebAnalytics = {
			
	process: function () {
		
		console.log('Processing webanalytics queue ', JSON.stringify(_analyticsq));
											
		var a = [];
		var d = {};
		for (var i = 0; i < _analyticsq.length; i++) {
			var r = _analyticsq[i];
			if (r.length > 0) {
				switch (r[0]) {
					case 'action': a.push(r[1]); break;
					case 'set': d[r[1]] = r[2]; break;
				}				
			}
		}
		
		if (a.length) {
		
			var screenSize = window.screen.width + 'x' + window.screen.height;
			var referrer = document.referrer;			
			var pagePath = window.location.pathname;
			var pagePathWithQuery = window.location.pathname + window.location.search;
			
			var c = {};
			c['screenSize'] = screenSize;
			c['pagePath'] = pagePath;
			c['pagePathWithQuery'] = pagePathWithQuery;
			c['referrer'] = referrer;
			c['userId'] = _readCookie('puid');
			c['visitorId'] = _readCookie('pvid');					
			
			var data = {};
			data['actions'] = a;
			data['data'] = d;
			data['context'] = c;
			console.log('Webanalytics data ', data);						
			data = btoa(encodeURIComponent(JSON.stringify(data)));			
				
			var img = document.createElement("img");
			img.src = "/webanalytics/img?d=" + data + "&r=" + Math.random();				
			img.width = "1";
			img.height = "1";
			img.style.display = "none";
			var root = document.getElementById("webanalytics-root");
			var imgs = root.getElementsByTagName("img");		
			for (var i=0; i<imgs.length; i++) {
				root.removeChild(imgs[i]);	
			}				
			
			root.appendChild(img);		
		}
						
	}
	
}

_analyticsq.push(['action', 'pageView']);

WebAnalytics.process();