public async Task <Guid> AddApartment(string lastName, string streetAddress, int postalCode)
{
if (string.IsNullOrWhiteSpace(lastName))
{
throw new ArgumentException();
}
if (string.IsNullOrWhiteSpace(streetAddress))
{
throw new ArgumentException();
}
var rowHouseApartment = RowHouseApartment.Create(streetAddress);
bool rowHouseCreated = await _apartmentRepository.HasRowHouse(postalCode, rowHouseApartment.RowAddress);
if (!rowHouseCreated)
{
await _apartmentRepository.AddRowHouse(postalCode, rowHouseApartment.RowAddress);
}
return(await _apartmentRepository.AddApartment(postalCode, rowHouseApartment.RowAddress, lastName, rowHouseApartment.ApartmentNumber));
}
