Admin notice add user friendly Error message for non Dual CC-Woo Install about classic-commerce HOT 4 CLOSED

function cc_wc_already_active_notice() {
    echo '<div class="error"><p>';
    echo __( 'You must deactivate WooCommerce before activating Classic Commerce.', 'classic-commerce' );
    echo '</p></div>';
}
if ( function_exists( 'wc' ) ) {
    // The main wc() function already exists, which means WooCommerce is active.
    // Show an admin notice.
    add_action( 'admin_notices', 'cc_wc_already_active_notice' );
    // Deactivate Classic Commerce.
    deactivate_plugins( array( 'classic-commerce/classic-commerce.php' ) );
    // Do not proceed further with Classic Commerce loading.
    // (may need tweaking depending on code structure)
    return;
}

function wc() {
    // ... (existing code)