(() => {
    ESX = {};

    ESX.inventoryNotification = function (add, label, count) {
        let notif = "";

        if (add) {
            notif += "+";
        } else {
            notif += "-";
        }

        if (count) {
            notif += count + " " + label;
        } else {
            notif += " " + label;
        }

        let elem = $("<div>" + notif + "</div>");
        $("#inventory_notifications").append(elem);

        $(elem)
            .delay(3000)
            .fadeOut(1000, function () {
                elem.remove();
            });
    };

    window.onData = (data) => {
        if (data.action === "inventoryNotification") {
            ESX.inventoryNotification(data.add, data.item, data.count);
        }
    };

    window.onload = function (e) {
        window.addEventListener("message", (event) => {
            onData(event.data);
        });
    };
})();