recalculateCart example

    public function recalculateOrder(string $orderId, Context $context): void
    {
        $order = $this->fetchOrder($orderId, $context);

        $this->validateOrder($order, $orderId);
        \assert($order instanceof OrderEntity);

        $salesChannelContext = $this->orderConverter->assembleSalesChannelContext($order, $context);
        $cart = $this->orderConverter->convertToCart($order, $context);
        $recalculatedCart = $this->recalculateCart($cart, $salesChannelContext);

        $conversionContext = (new OrderConversionContext())
            ->setIncludeCustomer(false)
            ->setIncludeBillingAddress(false)
            ->setIncludeDeliveries(true)
            ->setIncludeTransactions(false)
            ->setIncludeOrderDate(false);

        $orderData = $this->orderConverter->convertToOrder($recalculatedCart, $salesChannelContext, $conversionContext);
        $orderData['id'] = $order->getId();
        $orderData['stateId'] = $order->getStateId();