Code-Snippets-Functions/Execute a function on a child site/WooCommerce/disable-add-to-cart-display-message-during-vacations.txt

function on_vacation() {
    $release_date      = '2021-02-12';
    $current_timestamp = strtotime( date( 'Y-m-d' ) );
    $release_timestamp = strtotime( date( 'Y-m-d', strtotime( $release_date ) ) );

    return $current_timestamp < $release_timestamp ? true : false;
}

function vacations_message() {
    return __("We are on vacation and will come back next week on Monday.");
}

// Disable add to cart and display a message on single product pages
add_filter( 'woocommerce_is_purchasable', 'vacation_notice_add_to_cart', 10, 2 );
function vacation_notice_add_to_cart( $is_purchasable, $product ) {
    if ( on_vacation() ) {
        $is_purchasable = false;
        add_action( 'woocommerce_single_product_summary', 'single_product_vacation_notice', 5 );
    }
    return $is_purchasable;
}

function single_product_vacation_notice() {
    echo '<div class="vaction-notice">' . vacations_message() . '</div>';
}

// Display a message everywhere else (not on single product pages)
add_action( 'template_redirect', 'general_vacation_notice' );
function general_vacation_notice() {
    if ( ! is_product() && on_vacation() ) {
        wc_add_notice( vacations_message() );
    }
}