/// Get parameters from url
var params = location.search
    .slice(1)
    .split("&")
    .filter(function(item) {
        return item.includes("=");
    });

/// Paramater ECID for HR referral
var ecid = params.find(function(entry) { return entry.startsWith('ecid='); }) || '=';
if (ecid && ecid != "=") {
    ecid = ecid.split('=')[1];
    sessionStorage.setItem('session_ecid', ecid);
}

/// Cookie
var decodedCookie = decodeURIComponent(document.cookie);

function getHandler() {

    var cookieModalContent = document.getElementById('cookieModalContent');

    if (cookieModalContent) {

        /// If cookie does not include "preference=" then the user cookie preference has not been set
        if(!decodedCookie.includes('preference=')) { document.body.classList.add("modal-open-cookie"); }
        else if (decodedCookie.includes('preference=allow')) {

            // If parameter is missing, try to get ecid from cookie or local storage
            if (!ecid || ecid == "=") {
                if (decodedCookie.indexOf("ecid=") != -1)
                    ecid = decodedCookie.substring(decodedCookie.indexOf("ecid=")+5, decodedCookie.indexOf(";",decodedCookie.indexOf("ecid=")));
                else ecid = sessionStorage.getItem('session_ecid');
            }

            // If ecid was successfully saved either from parameter or previous storage
            // it is saved in cookie sincce permisison has been granted
            if (ecid && ecid != "=")  {
                var current = new Date();
                var future = new Date(current.setDate(current.getDate() + 7)).toUTCString();

                document.cookie = `ecid=${ecid}; expires=${future}  path=/`;
            }

            setTags(true);
        }
        else if (decodedCookie.includes('preference=deny')) setTags(false);

        // Last resort for either scenariom, where ecid is missing,
        // is to retrieve the ecid from session storage
        if(!ecid || ecid == "=") ecid = sessionStorage.getItem('session_ecid');
    }
}

function handleCookie(choice) {
    document.body.classList.remove("modal-open-cookie");

    gtag('event', choice ? 'cookie_accept' : 'cookie_deny');

    var current = new Date();
    var future = new Date(current.setDate(current.getDate() + 7)).toUTCString();

    if (choice) {
        document.cookie = `preference=allow; expires=${future}; path=/;`;
        document.cookie = `ecid=${ecid}; expires=${future}; path=/;`;
    }
    else document.cookie = `preference=deny; expires=${future}; path=/`;

    setTags(choice);
 }

 /// Tags usualy work with cookies, so with the response from the cookie modal we determine
 /// how and which tags are set. e.g. Google and FB have specific attributes whilst LinkedIn is
 /// either set or not.
 function setTags(permission) {

    if (permission) {

        // Google
        try {
            gtag('consent', 'update', {
                analytics_storage: 'granted',
                ad_storage: 'granted',
            });
        }
        catch(e) {console.log(e);}

        // FB Tag
        try { fbq('consent','grant'); }
        catch(e) {console.log(e);}

        /// LinkedIn
        try {
            _linkedin_partner_id = "3959737";
            window._linkedin_data_partner_ids = window._linkedin_data_partner_ids || [];
            window._linkedin_data_partner_ids.push(_linkedin_partner_id);

            (function(l) { if (!l){window.lintrk = function(a,b){window.lintrk.q.push([a,b])}; window.lintrk.q=[]}
            var s = document.getElementsByTagName("script")[0];
            var b = document.createElement("script");
            b.type = "text/javascript";
            b.async = true;
            b.src = "https://snap.licdn.com/li.lms-analytics/insight.min.js";
            s.parentNode.insertBefore(b, s);})
            (window.lintrk);
        }
        catch(e) {console.log(e);}

        try {
            // Hotjar
            (function(h,o,t,j,a,r){
                h.hj=h.hj||function(){(h.hj.q=h.hj.q||[]).push(arguments)};
                h._hjSettings={hjid:3636470,hjsv:6};
                a=o.getElementsByTagName('head')[0];
                r=o.createElement('script');r.async=1;
                r.src=t+h._hjSettings.hjid+j+h._hjSettings.hjsv;
                a.appendChild(r);
            })(window,document,'https://static.hotjar.com/c/hotjar-','.js?sv=');
        }
        catch(e) { console.log(e); }
    }
 }