/* Vendemore Javascript */

//
	
function Vendemore() {
		
	var version = '1.0'

	var BASE_URL = 'ab.vendemore.com/footprint-web';
	var protocol = (("https:" == document.location.protocol) ? "https://" : "http://");
	var COOKIE_NAME = 'vlmref';


	this.init = init;

	// Function called when page loads
	// Collects data and calls method to send ajax request
	function init() {
		  	
		var r = encodeURIComponent(document.referrer);
		var l = encodeURIComponent(document.location);
		var t = encodeURIComponent(jQuery.trim(document.title));
		var u = encodeURIComponent(document.URL);
		var domain = encodeURIComponent(document.domain);
		var path = encodeURIComponent(location.pathname);
		var hostname = encodeURIComponent(location.hostname);
		var href = encodeURIComponent(location.href);
		
		// read existing cookie
		var c = getCookie(COOKIE_NAME);

		// Create Hash of parameters
		var params = {'cookie':c,
				      'url':u,
				      'path':path,
				      'title':t,
				      'domain':domain,
				      'referrer':r};
			
		sendMessage(params);

	}

	//Function to send ajax request
	// params- prototype Hash of request parameters
	function sendMessage(params) {

		jQuery.getJSON(protocol + BASE_URL + '/alpha?'+jQuery.param(params)+'&callback=?', 
				function(response) {				
				// Setting cookie
				setCookie(COOKIE_NAME, response.cookieId, 365);				
				// Landing page
				handleLandingPage(response.landingPage);
		});

	}
	
	function handleLandingPage(landingPage){
        if(landingPage){
                if(landingPage.element && landingPage.html){
                        if($("#"+landingPage.element)){
                                $("#"+landingPage.element).html(landingPage.html);
                                return;
                        }
                }
        }
}


	//path & domain???
	//Function to set cookie
	// c_name - cookie name
	// c_value - cookie value
	// expiredays - days until cookie expiration
	function setCookie(c_name, value, expiredays) {
		var exdate = new Date();
		exdate.setDate(exdate.getDate() + expiredays);
		document.cookie = c_name
				+ '='
				+ escape(value)
				+ ((expiredays == null) ? '' : ';expires='
						+ exdate.toGMTString());
	}

	//Function to get cookie by name
	function getCookie(c_name) {
		if (document.cookie.length > 0) {
			var c_start = document.cookie.indexOf(c_name + '=');
			if (c_start != -1) {
				c_start = c_start + c_name.length + 1;
				var c_end = document.cookie.indexOf(';', c_start);
				if (c_end == -1)
					c_end = document.cookie.length;
				return unescape(document.cookie.substring(c_start, c_end));
			}
		}
		return '';
	}
	
}

//Run Vendemore.init() onload
$(document).ready(function() {
	new Vendemore().init();
});