CUW: Compatibility for Side Cart WooCommerce

Checkout Upsell: Compatibility script (fix popup cart subtotal issue) for Side Cart WooCommerce by XootiX

add_action('wp_ajax_cuw_get_cart_subtotal', 'cuw_get_cart_subtotal');
add_action('wp_ajax_nopriv_cuw_get_cart_subtotal', 'cuw_get_cart_subtotal');

if (!function_exists('cuw_get_cart_subtotal')) {
    function cuw_get_cart_subtotal() {
        $subtotal = 0;
        if (function_exists('WC') && isset(WC()->cart) && function_exists('wc_price')) {
            WC()->cart->calculate_totals();
            $subtotal = WC()->cart->get_subtotal();
            if (get_option('woocommerce_tax_display_shop') === 'incl') {
                $subtotal += WC()->cart->get_subtotal_tax();
            }
        }
        wp_send_json_success([
            'cart_subtotal' => wc_price($subtotal),
        ]);
    }
}

add_action('wp_footer', function() { 
    if (function_exists('is_product') && is_product()) { ?>
    <script type="text/javascript">
        jQuery(document).ready(function() {
            if (jQuery(".cuw-modal .cuw-cart-subtotal").length > 0) {
                jQuery(document).on('added_to_cart', function () {
                    jQuery.ajax({
                        type: 'post',
                        url: '<?php echo admin_url('admin-ajax.php'); ?>',
                        async: true,
                        data: {
                            action: 'cuw_get_cart_subtotal',
                        },
                        success: function (response) {
                            jQuery(".cuw-modal .cuw-cart-subtotal").html(response.data.cart_subtotal);
                        },
                    });
                });
            }
        });
    </script>
<?php }
});