private WinningBid CalculateNextBid(WinningBid winningbid, Offer offer)
{
WinningBid bid;
if (winningbid.CanBeExceededBy(offer.MaximumBid))
{
bid = new WinningBid(offer.Bidder, offer.MaximumBid, winningbid.CurrentAuctionPrice.BidIncrement(), offer.TimeOfOffer);
}
else
{
bid = new WinningBid(offer.Bidder, offer.MaximumBid, offer.MaximumBid, offer.TimeOfOffer);
}
return(bid);
}
public void PlaceBidFor(Offer offer, DateTime currentTime)
{
if (StillInProgress(currentTime))
{
if (FirstOffer())
{
PlaceABidForTheFirst(offer);
}
else if (BidderIsIncreasingMaximumBidToNew(offer))
{
WinningBid = WinningBid.RaiseMaximumBidTo(offer.MaximumBid);
}
else if (WinningBid.CanBeExceededBy(offer.MaximumBid))
{
var newBids = new AutomaticBidder().GenerateNextSequenceOfBidsAfter(offer, WinningBid);
foreach (var bid in newBids)
{
Place(bid);
}
}
}
}