public void AddComputerToOrder(string orderId, AddComputersToOrderDto computersToOrderDto)
{
User user = AuthenticationService.AuthenticateUser(_username, _password);
ValidationService.ValidateAddComputersToOrderDto(computersToOrderDto);
Order order = QueryService.FindOrder(orderId);
if (!order.User.Username.Equals(user.Username))
{
throw new Exception("Order doesn't belong to user. User: " + _username);
}
Entities entities = DatabaseContext.GetEntities();
foreach (var orderLineDto in computersToOrderDto.OrderLines)
{
OrderLine orderLine =
order.OrderLines.FirstOrDefault(ol => ol.Computer.Guid == orderLineDto.ComputerId);
if (orderLine != null)
{
orderLine.Quantity += orderLineDto.Quantity;
}
else
{
order.OrderLines.Add(TransformationService.AddOrderLineToOrderLine(orderLineDto));
}
}
entities.Save();
}
public static void ValidateAddComputersToOrderDto(AddComputersToOrderDto computersToOrderDto)
{
computersToOrderDto.OrderLines.ToList().ForEach(orderLine =>
{
if (string.IsNullOrEmpty(orderLine.ComputerId))
{
throw new Exception("Computer id cannot be null or empty");
}
if (orderLine.Quantity < 0)
{
throw new Exception("Computer quantity cannot be negative");
}
});
}
