(function () {




    let topNavLikesCountSpan = document.getElementById('topNavLikesCount');

    const getFavQueriesCount = function () {

        let res = 0;
        let i = 0;

        while (i < localStorage.length) {
            if (localStorage.key(i).startsWith('fb_fq_')) res++;
            i++;
        }
        return res;
    }



    // обновить счетчик сохраненных запросов
    topNavLikesCountSpan.textContent = getFavQueriesCount().toString();

    // работа с top-banner


    const setCookie = function(cname, cvalue, exdays) {
        let d = new Date();
        d.setTime(d.getTime() + (exdays*24*60*60*1000));
        let expires = "expires="+d.toUTCString();
        document.cookie = cname + "=" + cvalue + "; " + expires;
    }

    const getCookie = function(cname) {
        var name = cname + "=";

        var ca = document.cookie.split(';');
        for(var i=0; i<ca.length; i++) {
            var c = ca[i];
            while (c.charAt(0)===' ') c = c.substring(1);
            if (c.indexOf(name) !== -1) return c.substring(name.length, c.length);
        }
        return "";
    }

    const checkCookie = function(cname) {
        return getCookie(cname) || false;
    }



    let topBanner = document.getElementById("topBanner");
    let topBannerCookie = `topBanner${topBanner.dataset.id}`

    if (!checkCookie(topBannerCookie)) {
       topBanner.classList.remove('hidden'); //скрываем
    }

    const setTopBannerCookie = function() {
        setCookie(topBannerCookie, true, 90);
        topBanner.classList.add('hidden'); //скрываем

    }


    let topBannerCloseBtn = document.getElementById("topBannerCloseBtn");

    if (topBannerCloseBtn) topBannerCloseBtn.addEventListener('click', setTopBannerCookie)
    // показать или скрыть top_banner




}());