public async Task <ValidationResult> Handle(UpdatePriceCommand request, CancellationToken cancellationToken)
{
if (!request.IsValid())
{
return(request.ValidationResult);
}
var existingItem = await _itemRepository.FindById(request.ItemId);
if (existingItem == null)
{
AddError("Item not found.");
return(ValidationResult);
}
existingItem.UpdateValues(request.InCashValue, request.NormalValue, request.FullValue);
existingItem.SetAvailability(request.IsAvailable);
var history = new ItemHistory(request.ItemId, request.InCashValue, request.NormalValue, request.FullValue, request.IsAvailable);
_itemRepository.AddHistory(history);
existingItem.AddEvent(new PriceUpdatedEvent(request.ItemId, request.InCashValue, request.NormalValue, request.FullValue, request.IsAvailable));
return(await Persist(_itemRepository.UnitOfWork));
}