deleteCookie.js

'use strict';

function setCookie(cookieName, cookieValue, expiresDays, domain) {
	var path = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : '/';
	var isSecure = arguments[5];
	var isSessionCookie = arguments[6];
	var cookieDomain = window.lp.globals.cookieDomain;

	var expires = '';
	if (expiresDays) {

		var now = new Date();
		now.setTime(now.getTime() + expiresDays * 86400000);
		expires = '; expires=' + now.toUTCString();
	}
	if (isSessionCookie) {

		expires = '';
	}

	document.cookie = encodeURIComponent(cookieName) + '=' + encodeURIComponent(cookieValue) + ';' + (expires + '; domain=' + (domain || cookieDomain) + '; path=' + path + (isSecure ? '; secure' : ''));

	return getCookie(cookieName);
}

function deleteCookie(cookieName, domain) {

	var cookieDomain = domain || '.lampsplus.com' || window.lp.globals.cookieDomain;
	setCookie(cookieName, '', -10, cookieDomain);
}

function getCookie(cookieName) {

	var result = new RegExp('(?:^|; )' + encodeURIComponent(cookieName) + '=([^;]*)').exec(document.cookie);
	return result ? result[1] : null;
}

/**
 * Get the hashed email from a cookie value (removes extra params)
 * @param {String} cookieValue cookie value returned by getCookie()
 */
function getEmailFromCookie(cookieValue) {
	// ex cookie:
	//    "em=20824kjsldhfjk987234?url=/account/create/1234?param=2o3k4j/23k3l"
	return cookieValue
		.split('?')
		.shift()
		.split('=')
		.pop();
}

/**
 * Send tracking data via utag.view()
 * @param {String} email hashed email value to send via tracking
 */
function sendTrackingInfo(email) {
	// LiveRam tag template will only respond to utag.view (not utag.link)
	if (window.utag && window.utag.view) {
		window.utag.view({
			customer_email: email
		});
	}
}

var cookieName = 'mdem';
var cookie = getCookie(cookieName);

if (cookie) {
	var email = getEmailFromCookie(cookie);

	sendTrackingInfo(email);
	deleteCookie(cookieName);
}