Code-Snippets-Functions/Execute a function on a child site/WooCommerce/create-a-order-programmatically-adding-normal-products-and-gifted-products.txt

// Create an order for specific customer
$order = wc_create_order( array('customer_id' => $currentUserId) );

// Loop through products Ids to be added as order items
foreach($cartProductInfo as $productIn) {
    $_product = wc_get_product( $productIn['id'] ); // Get the WC_product object
    $order->add_product( $_product, $productIn['qty'] ); // Add the product to the order
}

// Loop through gifted products Ids to be added as order items
foreach($data['gift'] as $productIn ) { 
    $free_product = wc_get_product( $productIn['id'] ); // Get the WC_product object
    $free_product->set_price(0); // Change the product price to zero

    // Add the gifted product (with zero price) to the order
    if ( $item_id = $order->add_product( $free_product, 1 ) ) {
        $item = $order->get_item( $item_id ); // Retrieve the order item

        // Add custom metadata to indicate that it's a gift (free)
        $item->add_meta_data( 'is_free_gift', true, true );
        $item->add_meta_data( 'offer_type', $productIn['offer_type'], true );

        $item->save();  // Save order item custom metadata
    }
} 
    
// calculate total and save (The save() method is already included)
$order->calculate_totals();