private TradeRegistrationContext RegisterNewUser(TradeRegistrationContext context, bool isBuyer)
{
var user = new BinanceUser()
{
WalletsHistory = new List <Wallet>(),
Identifier = IdentificationUtilities.GetRandomIdentifier(),
};
var pair = isBuyer ? context.SellingPair : context.BuyingPair;
var firstWallet = new Wallet()
{
Symbol = pair.Symbol,
OwnerId = user.Identifier,
Balance = pair.Amount,
WalletCreatedFromTradeId = context.Trade.TradeId,
};
user.WalletsHistory.Add(firstWallet);
var secondWallet = firstWallet.Clone();
pair = isBuyer ? context.BuyingPair : context.SellingPair;
secondWallet.Symbol = pair.Symbol;
secondWallet.Balance = pair.Amount;
user.WalletsHistory.Add(secondWallet);
_repository.AddOrUpdateUser(user);
_logger.Debug($"Registered a new user with Id: {user.Identifier}");
return(context);
}
public void AddOrUpdateUser(BinanceUser user)
{
var key = user.Identifier;
if (_usersCache.Get(key) != null)
{
_usersCache.Remove(key);
}
_usersCache.Add(key, user, GetTimeoutPolicy());
}
public UserProfitReport GetUserProfit(BinanceUser user)
{
_logger.Verbose($"Starting profit calculation for user with Id: {user.Identifier}");
var trades = new List <Trade>();
var profit = new UserProfitReport();
Debug.Assert(user.WalletsHistory[1].WalletCreatedFromTradeId == user.WalletsHistory[0].WalletCreatedFromTradeId);
foreach (var tradeId in user.WalletsHistory.Select(w => w.WalletCreatedFromTradeId).Skip(1)) // First two wallets are created from the same trade.
{
var trade = _repository.GetTradeById(tradeId);
trades.Add(trade);
}
var selectedWallets = user.WalletsHistory.Where(w => w.Symbol == _config.TargetCurrencySymbol).ToList();
profit.AverageProfitPerHour = CalculateProfitPerHour(selectedWallets);
profit.CurrencySymbol = _config.TargetCurrencySymbol;
var lastTrade = _repository.GetTradeById(user.CurrentWallet.WalletCreatedFromTradeId);
if (DateTime.UtcNow - lastTrade.TradeTime > TimeSpan.FromSeconds(_config.Limiters.MaximalAllowedTradeSyncSeconds))
{
_logger.Information($"User with Id {user.Identifier} had last trade with Id {lastTrade.TradeId} out of sync.");
profit.IsFullReport = false;
return(profit);
}
if (selectedWallets.Count < 3 || profit.AverageProfitPerHour == default)
{
_logger.Verbose($"User with Id {user.Identifier} had small amount of information. Aborting report calculation.");
profit.IsFullReport = false;
return(profit);
}
var dateDiffList = new List <TimeSpan>(capacity: trades.Count - 1);
for (int i = 1; i < trades.Count; i++)
{
dateDiffList.Add(trades[i].TradeTime - trades[i - 1].TradeTime);
}
profit.IsFullReport = true;
profit.EndBalance = selectedWallets.Last().Balance;
profit.StartBalance = selectedWallets.First().Balance;
profit.TotalTradesCount = user.WalletsHistory.Count - 1;
profit.SuccessFailureRatio = GetSuccessFailureRate(selectedWallets);
profit.MinimalTradeThreshold = TimeSpan.FromSeconds(dateDiffList.Min(diff => diff.TotalSeconds));
profit.AverageTradeThreshold = TimeSpan.FromSeconds(dateDiffList.Average(diff => diff.TotalSeconds));
profit.AverageTradesPerHour = GetTradesPerHour(profit.TotalTradesCount, profit.AverageTradeThreshold);
return(profit);
}
