document.addEventListener('DOMContentLoaded', () => {
    /** init gtm after 3500 seconds - this could be adjusted */
    setTimeout(initGTM, 3500);
});
document.addEventListener('scroll', initGTMOnEvent);
document.addEventListener('mousemove', initGTMOnEvent);
document.addEventListener('touchstart', initGTMOnEvent);
function initGTMOnEvent(event) {
    initGTM();
    event.currentTarget.removeEventListener(event.type, initGTMOnEvent); // remove the event listener that got triggered
}
function initGTM() {
    if (window.gtmDidInit) {
        return false;
    }
    window.gtmDidInit = true; // flag to ensure script does not get added to DOM more than once.
    const script = document.createElement('script');
    script.type = 'text/javascript';
    script.async = true;
    // ensure PageViews is always tracked (on script load)
    script.onload = () => {
        window.dataLayer = window.dataLayer || [];
        function gtag(){dataLayer.push(arguments);}
        window.gtag = gtag;
    };
    script.src = 'https://www.googletagmanager.com/gtag/js?id=G-TZQ2CRZ6GE';
    document.head.appendChild(script);
}