2Stop spam and fake orders in WooCommerce

defined( 'ABSPATH' ) || exit;

// Hook into the WooCommerce checkout process
add_action( 'woocommerce_after_checkout_validation', 'ip_order_limit_check', 10, 2 );

function ip_order_limit_check( $data, $errors ) {
    // Get the customer's IP address
    $ip_address = $_SERVER['REMOTE_ADDR'];

    // Check if the IP address has placed an order within the last 24 hours
    if ( ip_address_has_order( $ip_address ) ) {
        $errors->add( 'order_error', 'Sorry, you can only place one order per 24 hours.' );
    }
}

function ip_address_has_order( $ip_address ) {
    // Query WooCommerce orders to check if the IP address has placed an order within the last 24 hours
    $args = array(
        'post_type'   => 'shop_order',
        'post_status' => 'wc-completed',  // Only consider completed orders
        'posts_per_page' => 1,
        'meta_query'  => array(
            array(
                'key'     => '_customer_ip_address',
                'value'   => $ip_address,
                'compare' => '=',
            ),
            array(
                'key'     => '_date_completed',
                'value'   => strtotime( '-24 hours' ),
                'compare' => '>',
                'type'    => 'numeric',
            ),
        ),
    );

    $orders = get_posts( $args );

    return ! empty( $orders );
}





/**
 * Auto Complete all WooCommerce orders.
 */
add_action( 'woocommerce_thankyou', 'custom_woocommerce_auto_complete_order' );
function custom_woocommerce_auto_complete_order( $order_id ) {
    if ( ! $order_id ) {
        return;
    }

    $order = wc_get_order( $order_id );
    $order->update_status( 'completed' );
}






// Register a new custom order status
function register_custom_order_status() {
    register_post_status('wc-order-paid', array(
        'label' => __('Order Paid', 'woocommerce'),
        'public' => true,
        'exclude_from_search' => false,
        'show_in_admin_all_list' => true,
        'show_in_admin_status_list' => true,
        'label_count' => _n_noop('Order Paid <span class="count">(%s)</span>', 'Order Paid <span class="count">(%s)</span>', 'woocommerce'),
    ));
}
add_action('init', 'register_custom_order_status');

// Add the new custom order status to WooCommerce
function add_custom_order_status_to_dropdown($order_statuses) {
    $order_statuses['wc-order-paid'] = __('Order Paid', 'woocommerce');
    return $order_statuses;
}
add_filter('wc_order_statuses', 'add_custom_order_status_to_dropdown');