var ad_wrappers = [].slice.call(document.querySelectorAll(".nx-ad-unit"));
var unknown_ad_wrappers = [].slice.call(document.querySelectorAll(".unknown_ad"));
var flag = false;
var slotsArray = [];


function nx_ad_init(ad) {
    if (!ad.hasAttribute("data-ad-slot") || !ad.hasAttribute("data-id") || !ad.hasAttribute("data-sizes")) {
        return;
    }
    let ad_slot = ad.getAttribute("data-ad-slot");
    let sizes = JSON.parse(ad.getAttribute("data-sizes"));
    let mappings = JSON.parse(ad.getAttribute("data-map-var"));
    let id = ad.getAttribute("data-id");
    ad.id = id;

    console.log("Loading ad ->", id);
    googletag.cmd.push(function () {
        let mapping_temp = googletag.sizeMapping();

        for (map of mappings) {
            mapping_temp.addSize(map[0], map[1]);
        }

        let mapping = mapping_temp.build();
        let slot = googletag.defineSlot(ad_slot, sizes, id).defineSizeMapping(mapping).addService(googletag.pubads());

        /////////////////
        // UNCOMMENT BELLOW FOR SELECTIVE SLOT REFRESH (Billboard)
        /////////////////
        /*if (id === "nx_ad_Category_Billboard") {
            console.log('REFRESHING nx_ad_Category_Billboard')
            googletag.pubads().refresh([slot]);
        }*/
        slotsArray.push(slot);

    })
}

ad_wrappers.forEach(function (ad_banner) {

    let platform = ad_banner.getAttribute("data-platform");

    if (isNXMobile && platform === "mobile" || !isNXMobile && platform === "desktop") {
        nx_ad_init(ad_banner);
    } else if (platform === "both") {
        nx_ad_init(ad_banner);
    }

});

/* init ads for unknown users */
function initUnknownAds() {
    if (window.piano) {
        if (!window.piano.loggedIn) {
            unknown_ad_wrappers.forEach(ad_banner => {
                nx_ad_init(ad_banner);
            });
        } else {
            unknown_ad_wrappers.forEach(ad_banner => {
                ad_banner.parentElement.parentElement.className = "is-hidden";
            });
        }
    } else {
        setTimeout(initUnknownAds, 50);
    }
}

initUnknownAds();