public async Task <OfferConfirmed> Handle(ConfirmOfferCommand command)
{
var(orderId, offer) = CreateDomainModelFrom(command);
var order = await _orders.GetBy(orderId);
var orderHeader = await _orderHeaders.GetBy(orderId);
var currentOffer = await _calculatePrices.For(orderHeader.ClientId,
SalesChannel.Wholesales,
offer.ProductAmounts,
offer.Currency);
if (!offer.Equals(currentOffer))
{
throw new DomainException();
}
var priceChangesPolicy = await _priceChangesPolicies.ChooseFor(orderHeader.ClientId);
var now = _clock.Now;
order.ConfirmPrices(offer, now + _offerExpirationTime, now, priceChangesPolicy);
await _orders.Save(order);
return(CreateEventFrom(orderId, offer));
}
private static (OrderId, Offer) CreateDomainModelFrom(ConfirmOfferCommand command) => (