public AuktionBudViewModel([NotNull] AuktionModel auktion,
[NotNull, ItemNotNull] List <BudModel> bud)
{
AuktionID = auktion.AuktionID;
Titel = auktion.Titel;
Beskrivning = auktion.Beskrivning;
StartDatum = auktion.StartDatum;
SlutDatum = auktion.SlutDatum;
Utropspris = auktion.Utropspris ?? 0;
SkapadAv = auktion.SkapadAv;
Gruppkod = auktion.Gruppkod;
Bids = bud.Select(b => new BudViewModel(b)).ToList();
MaxedPrice = Bids.Count == 0
? Utropspris : Bids.Max(b => b.Summa);
HighestBid = Bids.FirstOrDefault();
DateTime now = DateTime.Now;
TimeUntilEnd = SlutDatum - now;
TimeUntilEndFormatted = DateTimeHelpers.FormatRemainingTime(SlutDatum);
TimeSinceStart = now - StartDatum;
TimeSinceStartFormatted = DateTimeHelpers.FormatRemainingTime(StartDatum);
IsClosed = SlutDatum < now;
}
public SynthOrderBook(AssetPair assetPair, IReadOnlyList <OrderBook> originalOrderBooks)
{
AssetPair = assetPair;
OriginalOrderBooks = originalOrderBooks;
BestBid = Bids.FirstOrDefault();
BestAsk = Asks.FirstOrDefault();
}
public bool AddBid(Player player, decimal amount, out decimal currentBid)
{
if (!IsValidBid(amount, out currentBid))
{
return(false);
}
GetBidPrice(player, amount);
var bid = Bids.FirstOrDefault(c => c.Player.Id == player.channel.owner.playerID.steamID.m_SteamID);
if (bid == null)
{
bid = new AuctionBid()
{
Player = new CachedPlayer(player),
Amount = amount
};
Bids.Add(bid);
}
else
{
bid.Amount = amount;
}
BestBid = bid;
return(true);
}
void OnRemove(OrderBookUpdateInfo info)
{
if (info.Type == OrderBookEntryType.Bid)
{
OrderBookEntry entry = Bids.FirstOrDefault((e) => e.Value == info.Entry.Value);
if (entry == null)
{
Debug.WriteLine("Error removing: '" + info.Type + "' with rate " + info.Entry.Value + " not found");
return;
}
Bids.Remove(entry);
}
else
{
OrderBookEntry entry = Asks.FirstOrDefault((e) => e.Value == info.Entry.Value);
if (entry == null)
{
Debug.WriteLine("Error removing: '" + info.Type + "' with rate " + info.Entry.Value + " not found");
return;
}
Asks.Remove(entry);
}
RaiseOnChanged(info);
OnChangedCore(info);
}
public void EndAuction()
{
ThrowIfCompletedOrCanceled();
Completed = true;
var winningBid = Bids.FirstOrDefault(b => b.Price == Bids.Max(bid => bid.Price));
Buyer = winningBid?.UserIdentity;
AddEvent(new AuctionCompleted(AggregateId, winningBid, Owner));
}
public decimal GetBidPrice(Player player, decimal amount)
{
var bid = Bids.FirstOrDefault(c => c.Player.Id == player.channel.owner.playerID.steamID.m_SteamID);
if (bid == null)
{
return(amount);
}
return(amount - bid.Amount);
}
void OnAddBid(OrderBookUpdateInfo info)
{
OrderBookEntry before = Bids.FirstOrDefault((e) => e.Value < info.Entry.Value);
if (before == null)
{
Bids.Add(info.Entry);
return;
}
Bids.Insert(Bids.IndexOf(before), info.Entry);
}
public Offer GetOffer(string hash)
{
Offer result = null;
result = Bids.FirstOrDefault(o => o.HashStr == hash);
if (result == null)
{
result = Asks.FirstOrDefault(o => o.HashStr == hash);
}
return(result);
}
protected internal void OnModify(OrderBookUpdateInfo info)
{
OrderBookEntry entry = info.Type == OrderBookEntryType.Ask ?
Asks.FirstOrDefault((e) => e.Value == info.Entry.Value) :
Bids.FirstOrDefault((e) => e.Value == info.Entry.Value);
if (entry == null)
{
OnAdd(info);
return;
}
entry.Amount = info.Entry.Amount;
info.Entry = entry;
RaiseOnChanged(info);
OnChangedCore(info);
}
private void CancelBid(Bid bid, bool fromEvents)
{
ThrowIfBuyNowOnly();
ThrowIfCompletedOrCanceled();
var existingBid = _bids.FirstOrDefault(b => b.BidId.Equals(bid.BidId));
if (existingBid == null)
{
throw new DomainException($"Cannot find bid with BidId: {bid.BidId}");
}
if (!fromEvents && DateTime.UtcNow.Subtract(existingBid.DateCreated)
.Minutes > 10)
{
throw new DomainException($"Bid ({bid.BidId}) was created more than 10 minutes ago");
}
_bids.Remove(existingBid);
Bid newWinningBid = null;
if (existingBid.Price.Equals(ActualPrice))
{
var topBid = Bids.FirstOrDefault(b => b.Price == Bids.Max(mbid => mbid.Price));
if (topBid != null)
{
ActualPrice = topBid.Price;
newWinningBid = topBid;
}
else
{
ActualPrice = 0;
newWinningBid = existingBid;
}
}
AddEvent(new BidCanceled(existingBid, newWinningBid));
}