public void AddTransaction(Car car, Client client, bool airConditioning, bool Radio, bool cruiseControl, bool navigation)
{
if (car == null || client == null)
{
return;
}
var decoratedCar = serviceManager.AddTransaction(car, client, airConditioning, Radio, cruiseControl, navigation);
MessageBox.Show(decoratedCar.GetDescription() + " " + decoratedCar.GetPrice() + " + VAT. Transakcja zakończona pomyślnie.");
var window = Application.Current.Windows.OfType <AddTransactionWindow>().First();
window.Close();
}
