public override void Save()
{
lock (SyncRoot)
{
try
{
var tradingService = Application.Resolve <ITradingService>();
string accountFilePath = Path.Combine(Directory.GetCurrentDirectory(), tradingService.Config.AccountFilePath);
var data = new TradingAccountData
{
Balance = balance,
TradingPairs = tradingPairs,
};
string accountJson = JsonConvert.SerializeObject(data, Formatting.Indented);
var accountFile = new FileInfo(accountFilePath);
accountFile.Directory.Create();
File.WriteAllText(accountFile.FullName, accountJson);
}
catch (Exception ex)
{
loggingService.Error("Unable to save account backup data", ex);
}
}
}
public override void Save()
{
lock (SyncRoot)
{
var tradingService = Application.Resolve <ITradingService>();
string virtualAccountFilePath = Path.Combine(Directory.GetCurrentDirectory(), tradingService.Config.VirtualAccountFilePath);
var data = new TradingAccountData
{
Balance = balance,
TradingPairs = tradingPairs
};
string virtualAccountJson = JsonConvert.SerializeObject(data, Formatting.Indented);
var virtualAccountFile = new FileInfo(virtualAccountFilePath);
virtualAccountFile.Directory.Create();
File.WriteAllText(virtualAccountFile.FullName, virtualAccountJson);
}
}
public override void Refresh()
{
loggingService.Info("Refresh account...");
decimal newBalance = 0;
Dictionary <string, decimal> availableAmounts = new Dictionary <string, decimal>();
Dictionary <string, IEnumerable <IOrderDetails> > availableTrades = new Dictionary <string, IEnumerable <IOrderDetails> >();
DateTimeOffset refreshStart = DateTimeOffset.Now;
// Preload account data without locking the account
try
{
loggingService.Info("Load account data...");
foreach (var kvp in tradingService.GetAvailableAmounts())
{
string currency = kvp.Key;
string pair = currency + tradingService.Config.Market;
decimal amount = kvp.Value;
decimal price = tradingService.GetCurrentPrice(pair);
decimal cost = amount * price;
if (currency == tradingService.Config.Market)
{
newBalance = amount;
}
else if (cost > tradingService.Config.MinCost && !tradingService.Config.ExcludedPairs.Contains(pair))
{
try
{
IEnumerable <IOrderDetails> trades = tradingService.GetMyTrades(pair);
availableTrades.Add(pair, trades);
availableAmounts.Add(pair, amount);
}
catch (Exception ex) when(ex.Message != null && ex.Message.Contains("Invalid symbol"))
{
loggingService.Info($"Skip invalid pair: {pair}");
}
}
}
loggingService.Info("Account data loaded");
}
catch (Exception ex) when(!isInitialRefresh)
{
healthCheckService.UpdateHealthCheck(Constants.HealthChecks.AccountRefreshed, ex.Message, true);
loggingService.Error("Unable to load account data", ex);
notificationService.Notify("Unable to load account data");
return;
}
// Lock the account and reapply all trades
try
{
lock (SyncRoot)
{
ConcurrentDictionary <string, TradingPair> tradingPairsBackup = null;
if (isInitialRefresh)
{
TradingAccountData data = LoadBackupData();
tradingPairsBackup = data?.TradingPairs ?? new ConcurrentDictionary <string, TradingPair>();
}
else
{
tradingPairsBackup = tradingPairs;
}
tradingPairs = new ConcurrentDictionary <string, TradingPair>();
foreach (var kvp in availableTrades)
{
string pair = kvp.Key;
decimal amount = availableAmounts[pair];
IEnumerable <IOrderDetails> trades = kvp.Value;
foreach (var trade in trades)
{
if (trade.Date >= tradingService.Config.AccountInitialBalanceDate)
{
if (trade.Side == OrderSide.Buy)
{
AddBuyOrder(trade);
}
else
{
ITradeResult tradeResult = AddSellOrder(trade);
}
if (isInitialRefresh)
{
tradingService.LogOrder(trade);
}
}
}
if (tradingPairs.TryGetValue(pair, out TradingPair tradingPair) && tradingPair.TotalAmount != amount)
{
loggingService.Info($"Fix amount for {pair}: {tradingPair.TotalAmount:0.########} => {amount:0.########}");
tradingPair.TotalAmount = amount;
}
}
foreach (var pair in tradingPairs.Keys.ToList())
{
if (tradingPairs[pair].AverageCostPaid <= tradingService.Config.MinCost)
{
loggingService.Info($"Skip low value pair: {pair}");
tradingPairs.TryRemove(pair, out TradingPair p);
}
else
{
if (tradingPairsBackup.TryGetValue(pair, out TradingPair backup))
{
tradingPairs[pair].Metadata = backup.Metadata ?? new OrderMetadata();
}
}
}
balance = newBalance;
// Add trades that were completed during account refresh
foreach (var order in tradingService.OrderHistory)
{
if (order.Date > refreshStart)
{
if (tradingPairs.TryGetValue(order.Pair, out TradingPair tradingPair))
{
if (!tradingPair.OrderIds.Contains(order.OrderId))
{
loggingService.Info($"Add missing order for {order.Pair} ({order.OrderId})");
AddOrder(order);
}
}
else
{
loggingService.Info($"Add missing order for {order.Pair} ({order.OrderId})");
AddOrder(order);
}
}
}
if (isInitialRefresh)
{
isInitialRefresh = false;
Save();
}
loggingService.Info($"Account refreshed. Balance: {balance}, Trading pairs: {tradingPairs.Count}");
healthCheckService.UpdateHealthCheck(Constants.HealthChecks.AccountRefreshed, $"Balance: {balance}, Trading pairs: {tradingPairs.Count}");
}
}
catch (Exception ex)
{
tradingPairs.Clear();
tradingService.SuspendTrading();
healthCheckService.UpdateHealthCheck(Constants.HealthChecks.AccountRefreshed, ex.Message, true);
loggingService.Error("Unable to refresh account", ex);
notificationService.Notify("Unable to refresh account");
}
}