private AuctionCommand ProcessCloseEvent()
{
if (Snapshot.State == SniperState.Winning)
{
Snapshot = Snapshot.Won();
}
else
{
Snapshot = Snapshot.Lost();
}
return(AuctionCommand.None());
}
private AuctionCommand ProcessPriceEvent(int currentPrice, int increment, string bidder)
{
if (Bidder == bidder)
{
Snapshot = Snapshot.Winning(currentPrice);
return(AuctionCommand.None());
}
int newBid = currentPrice + increment;
if (newBid > StopPrice)
{
Snapshot = Snapshot.Losing(currentPrice);
return(AuctionCommand.None());
}
else
{
Snapshot = Snapshot.Bidding(currentPrice, newBid);
return(AuctionCommand.Bid(newBid));
}
}
public AuctionCommand Process(AuctionEvent auctionEvent)
{
if (Snapshot.State == SniperState.Failed)
{
return(AuctionCommand.None());
}
switch (auctionEvent.Type)
{
case AuctionEventType.Price:
return(ProcessPriceEvent(auctionEvent.CurrentPrice, auctionEvent.Increment, auctionEvent.Bidder));
case AuctionEventType.Close:
return(ProcessCloseEvent());
case AuctionEventType.Unknown:
return(ProcessUnknownEvent());
default:
throw new InvalidOperationException();
}
}
private AuctionCommand ProcessUnknownEvent()
{
Snapshot = Snapshot.Failed();
return(AuctionCommand.None());
}
