function getIdTrackingUser(){

    if ( sessionStorage.getItem("id_page_tracking_user") &&
         sessionStorage.getItem("id_page_tracking_user") !== null &&
         sessionStorage.getItem("id_page_tracking_user") != undefined &&
         sessionStorage.getItem("id_page_tracking_user") != ''
    ) return;

    $.ajax({
        url: 'https://www.erasroom.com/assets/ajax/page-tracking/get-tracking-user.php',
        method: 'POST',
        success: function(response) {
            sessionStorage.setItem("id_page_tracking_user", response);
        },
        error: function(request, msg, error) {
            console.error(msg);
        }
    });
}

function pageTrackingUpdate(){
    $.ajax({
        url: 'https://www.erasroom.com/assets/ajax/page-tracking/page-tracking.php',
        data: { url: window.location.href, page: 'search-for-a-room', id_oggetto: '15', id_page_tracking_user: sessionStorage.getItem("id_page_tracking_user") },
        method: 'POST',
        success: function(response) {

        },
        error: function(request, msg, error) {
            console.error(msg);
        }
    });
}

/**
 * @param lockTime Tempo entro il quale se ho visitato già una pagina non faccio l'update (5 minuti)
 */
function pageTrackingSessionStorage(lockTime = 5 * 60 * 1000) {

    if (
         !sessionStorage.getItem("id_page_tracking_user") ||
         sessionStorage.getItem("id_page_tracking_user") == null ||
         sessionStorage.getItem("id_page_tracking_user") == undefined ||
         sessionStorage.getItem("id_page_tracking_user") == ''
    ) return;

    let urls = sessionStorage.getItem("urls");

    if (!urls) {
        urls = [];
    } else {
        urls = JSON.parse(urls);
    }

    let now = new Date().getTime();
    let fiveMinutes = lockTime;

    let index = urls.findIndex(item => item.url === window.location.href);

    if (index === -1) {
        urls.push({ url: window.location.href, timestamp: now });
        sessionStorage.setItem("urls", JSON.stringify(urls));
        pageTrackingUpdate();
    } else {
        let lastVisitTime = urls[index].timestamp;

        if (now - lastVisitTime > fiveMinutes) {
            urls[index].timestamp = now;
            sessionStorage.setItem("urls", JSON.stringify(urls));
            pageTrackingUpdate();
        }
    }
}

$( document ).ready(function() {
    getIdTrackingUser();
    pageTrackingSessionStorage();
});