DannyRusnok

public class TransactionGate{
  ...
  var orderItems = GetOrderItems();
  foreach(var orderItem in orderItems)
  {
    transactionBundle.Add(orderItem);
  }
  ...
}

DannyRusnok

public class TransactionGate{
  ...
  var orderItems = GetOrderItems();
  foreach(var orderItem in orderItems)
  {
   if(!transactionBundle.Contains(orderItem)){
    transactionBundle.Add(orderItem);
   }
  }
  ...

DannyRusnok

public class TransactionGate{
  ...
  var orderItems = GetOrderItems();
  orderItems = GetUniqueOrderItems();
  
  foreach(var orderItem in orderItems)
  {
    transactionBundle.Add(orderItem);
  }
  ...

DannyRusnok

public class TransactionGate{
  ...
  var orderItems = GetOrderItems();
  var uniqueOrderItems = GetUniqueOrderItems(orderItems);
  
  foreach(var orderItem in uniqueOrderItems)
  {
    transactionBundle.Add(orderItem);
  }
  ...    

DannyRusnok

public class OrdersFacade{
  private IExternalCustomerApiService customerApiService;
  private IOrderRepository orderRepository;
  ...
       
  public OrdersFacade(
    IExternalCustomerApiService customerApiService,
    IOrderRepository orderRepository,
    ...
    )

DannyRusnok

public class OrdersFacade{
  private IExternalCustomerApiService customerApiService;
  private IOrderRepository orderRepository;
  ...
       
  public OrdersFacade(
    IExternalCustomerApiService customerApiService,
    IOrderRepository orderRepository,
    ...
    )

DannyRusnok

public class OrderVatCalculator{
  public Order AddVatIfNotCompany(Order order, bool isCompany)
  {
    decimal vat = 1.21;
    if(!isCompany){
      order.Price = order.Price * vat;
    }
  }
}

DannyRusnok

public class Movie
{
  public string Title { get; set; }
  public string Description { get; set; }
  public List<Actor> Actors { get; set; } = new List<Actor>();
}

DannyRusnok

public class MovieService
{
  public void Create(string title, string decription, List<Actor> actors) { ... }
  public void AddActor(Movie movie, Actor actor){ ... }
  public List<Actor> GetMainActors(Movie movie) { ... }
}

DannyRusnok

public abstract class Mediator
{
  public abstract void Send(string message, Colleague colleague); 
}