(function() {

    // Triggers sticky add to cart on scroll.
    const astraStickyAddToCart = document.querySelector( ".ast-sticky-add-to-cart" );

    if( astraStickyAddToCart ) {
        const scrollOffset = document.querySelector( '.product .single_add_to_cart_button' ).offsetTop;
        window.addEventListener( "scroll", function() {
            if ( window.scrollY >= scrollOffset ) {
                astraStickyAddToCart.classList.add('is-active');
            } else {
                astraStickyAddToCart.classList.remove('is-active');
            }
        })
    }

    // Smooth scrolls if select option button is active.
    const AstraSmoothScrollBtn = document.querySelector( ".ast-sticky-add-to-cart-action-wrap .single_link_to_cart_button" );
    
    if( AstraSmoothScrollBtn ) {
        AstraSmoothScrollBtn.addEventListener('click', function (e) {
            e.preventDefault();
            document.querySelector(this.getAttribute('href')).scrollIntoView({
                behavior: 'smooth',
            });
        });
    }

})();