Make woocommerce not allow a product user has purchased before to be purchased again

gistfile1.txt

// posted by Robin Scott https://silicondales.com/tutorials/woocommerce-tutorials/woocommerce-tutorial-allow-users-purchase-items/ - prevent user adding item to cart if they bought it before...
add_filter('woocommerce_add_to_cart_validation','sd_bought_before_woocommerce_add_to_cart_validation',20, 2);
function sd_bought_before_woocommerce_add_to_cart_validation($valid, $product_id){
    $current_user = wp_get_current_user();
    if ( wc_customer_bought_product( $current_user->user_email, $current_user->ID, $product_id)) {
        wc_add_notice( __( 'ERROR MESSAGE GOES HERE SORRY YOU CANNOT BUY ANYTHING TWICE OKAY!!', 'woocommerce' ), 'error' );
        $valid = false;
    }
    return $valid;
}