protected async Task <bool> PanicSell(TradeTask tt)
{
try
{
await tt.locker.WaitAsync();
// there could be BUY or SL orders running. cancell all them first.
var result = await CancellAllOrders(tt);
tt.Jobs.ForEach(x => tt.FinishedJobs.Enqueue(x));
tt.Jobs.Clear();
if (tt.Qty > 0)
{
var sellJob = new OrderTask()
{
Symbol = tt.Symbol,
Type = OrderType.MARKET,
Kind = OrderKind.PanicSell,
Side = TradeSide.Sell,
Quantity = tt.Qty
};
tt.Jobs.Insert(0, sellJob);
}
TradeTaskViewModel.SerializeModel(tt);
return(result);
}
finally
{
tt.locker.Release();
}
}
// Покупка 123 XRP по 0.00123 выставлена
// Стоп-лосс 123 XRP по 0.0100 выставлен
// Тейк-профит 60 XRP по 0.00140 выставлен
// Завершено
// Остановлено
// Паник селл
private string BuildStatusString(TradeTask tt, OrderTask job)
{
string action = "Остановлено";
switch (job.Kind)
{
case OrderKind.Buy:
action = "Покупка";
break;
case OrderKind.StopLoss:
action = "Стоп лосс";
break;
case OrderKind.TakeProfit:
action = "Тейк профит";
break;
case OrderKind.PanicSell:
action = "Паник селл";
break;
}
var si = GetSymbolInformation(tt.Symbol);
return($"{action} {job.Quantity} {si.BaseAsset} по {job.Price} {si.QuoteAsset} {OrderStatusToDisplayStringRus(job.ExchangeOrder.Status)}");
}
private async Task <bool> GetOrders(TradeTask tt)
{
foreach (var job in tt.FinishedJobs.Where(IsActiveJob))
{
var result = await GetOrder(job);
job.ExchangeOrder = result;
result.Fills.ForEach(x => tt.RegisterTrade(x));
}
if (tt.LastGetOrder.AddSeconds(5) <= DateTime.Now)
{
foreach (var job in tt.Jobs.Where(IsActiveJob))
{
var result = await GetOrder(job);
if (job.ExchangeOrder == null || result.Updated > job.ExchangeOrder?.Updated)
{
job.ExchangeOrder = result;
tt.Updated = DateTime.Now;
TradeTaskViewModel.SerializeModel(tt);
var ttvm = TradeTasksList.SingleOrDefault(x => x.Model == tt);
ttvm.Status = BuildStatusString(tt, job);
result.Fills.ForEach(x => tt.RegisterTrade(x));
}
tt.LastGetOrder = DateTime.Now;
}
}
return(true);
}
public TradeTaskViewModel(SymbolInformation si, string exchangeName)
{
Model = new TradeTask();
Model.Id = Guid.NewGuid();
Model.Symbol = si.Symbol;
Model.Exchange = exchangeName;
SymbolInformation = si;
QuoteBalance = si.QuoteAssetBalance.Free;
QuoteBalancePercent = 0.05;
Buy = new OrderTaskViewModel(this)
{
Price = si.PriceTicker.Ask.GetValueOrDefault()
};
StopLoss = new OrderTaskViewModel(this)
{
Price = si.ClampPrice(Buy.Price * 0.95m)
};
TakeProfit = new ObservableCollection <TakeProfitViewModel>();
var DEF_TAKE_PRCNTS = new double[] { 0.6, 0.4 };
for (int ind = 1; ind <= 2; ++ind)
{
var tp = new TakeProfitViewModel(this, DEF_TAKE_PRCNTS[ind - 1], ind > 1 ? TakeProfit[ind - 2] : null)
{
Price = Math.Round(Buy.Price * (1.05m + 0.05m * ind), si.PriceDecimals), Caption = $"Тейк {ind}"
};
TakeProfit.Add(tp);
}
LastPrice = Buy.Price;
AddTakeProfitCommand = ReactiveCommand.Create <object>(AddTakeProfitExecute);
SubmitCommand = ReactiveCommand.CreateFromTask <string, bool>(SubmitImpl);
ConnectTrades(edit: true);
}
public TradeTask LoadFromJson(string json)
{
var tt = new TradeTask();
JsonConvert.PopulateObject(json, tt);
//Trades.Edit(innerList => innerList.AddOrUpdate(Buy.ExchangeOrder.Fills));
//Trades.Edit(innerList => innerList.AddOrUpdate(StopLoss.ExchangeOrder.Fills));
//foreach (var ot in TakeProfit)
// Trades.Edit(innerList => innerList.AddOrUpdate(ot.ExchangeOrder.Fills));
return(tt);
}
private async Task <bool> CancellAllOrders(TradeTask tt)
{
var result = false;
foreach (var job in tt.Jobs.Where(IsActiveJob).ToList())
{
result = await CancelOrder(job);
tt.FinishedJobs.Enqueue(job);
tt.Jobs.Remove(job);
TradeTaskViewModel.SerializeModel(tt);
}
return(result);
}
public TradeTaskViewModel(SymbolInformation si, TradeTask model)
{
SymbolInformation = si;
Model = model;
Buy = new OrderTaskViewModel(this, model.Buy);
StopLoss = new OrderTaskViewModel(this, model.StopLoss);
TakeProfit = new ObservableCollection <TakeProfitViewModel>();
for (int ind = 1; ind <= model.TakeProfit.Count(); ++ind)
{
var tp = new TakeProfitViewModel(this, model.TakeProfit[ind - 1], ind > 1 ? TakeProfit[ind - 2] : null);
TakeProfit.Add(tp);
}
LastPrice = si.PriceTicker.LastPrice.GetValueOrDefault();
ConnectTrades();
}
private async Task DoLifecycleImpl(TradeTask task)
{
if (task == null || task.IsBusy)
{
return;
}
try
{
await task.locker.WaitAsync();
var pt = GetPriceTicker(task.Symbol);
var result = await GetOrders(task);
if (task.Status == TradeTaskStatus.Running)
{
if (result)
{
await Lifecycle(task, pt);
}
}
else
{
var ttvm = TradeTasksList.SingleOrDefault(x => x.Model == task);
ttvm.Status = BuildStatusString(task.Status);
}
}
catch (ApiException ex)
{
var ttvm = TradeTasksList.SingleOrDefault(x => x.Model == task);
if (ttvm != null)
{
ttvm.LastError = ex.Error;
}
}
catch (Exception)
{
}
finally
{
task.locker.Release();
}
}
// before running the lifecycle, update ALL task orders
// with status = ACTIVE | PARTIALLY_FILLED.
private async Task Lifecycle(TradeTask tt, PriceTicker ticker)
{
if (!tt.Jobs.Any())
{
// Shutdown the task.
tt.Status = TradeTaskStatus.Finished;
tt.Updated = DateTime.Now;
tt.Events.Add(tt.Updated, "Task finished.");
TradeTaskViewModel.SerializeModel(tt);
return;
}
bool isLimitOrdersAllowed = true;
// NOTE: this routine relies on condition that
// LIMIT orders are always on TOP of MARKET orders in list of jobs.
foreach (var job in tt.Jobs.ToList())
{
if (job.ExchangeOrder != null)
{
switch (job.ExchangeOrder.Status)
{
case OrderStatus.Cancelled:
tt.Status = TradeTaskStatus.Stopped;
tt.Updated = DateTime.Now;
tt.Events.Add(tt.Updated, "Task stopped due to order was cancelled outside.");
TradeTaskViewModel.SerializeModel(tt);
return;
case OrderStatus.Filled:
if (job.Kind == OrderKind.StopLoss)
{
// Shutdown the task.
tt.Status = TradeTaskStatus.Finished;
tt.Updated = DateTime.Now;
tt.Events.Add(tt.Updated, "Task finished by stop loss.");
}
else if (job.Kind == OrderKind.PanicSell)
{
tt.Status = TradeTaskStatus.PanicSell;
tt.Updated = DateTime.Now;
tt.Events.Add(tt.Updated, "Task stopped by panic sell.");
}
tt.FinishedJobs.Enqueue(job);
tt.Jobs.Remove(job);
TradeTaskViewModel.SerializeModel(tt);
return;
case OrderStatus.Active:
case OrderStatus.PartiallyFilled:
// THIS STATE IS ONLY POSSIBLE FOR LIMIT ORDERS OR PANIC SELL!
// so allow ONLY MARKET order to check conditions and execute
isLimitOrdersAllowed = false;
break;
}
}
else
{
bool applicable = false;
bool isLimitOrder = (job.Type == OrderType.LIMIT || job.Type == OrderType.STOP_LIMIT);
// check condition
if (job.Kind == OrderKind.Buy)
{
applicable = (tt.StopLoss.Price < ticker.Ask) && (ticker.Ask < tt.TakeProfit.First().Price);
if (!applicable)
{
var ttvm = TradeTasksList.SingleOrDefault(x => x.Model == tt);
ttvm.Status = "Цена вне зоны покупки";
}
}
else if (job.Kind == OrderKind.PanicSell)
{
applicable = true;
}
else
{
applicable = (job.Type != OrderType.MARKET && job.Type != OrderType.TRAILING) || (ticker.Bid >= job.Price); // NOTE: last part is wrong -- could be market STOP_LOSS, so ticker.Bid <= job.Price is valid for this case
}
// !!!ALLOW ONLY 1 LIMIT ORDER AT A TIME FOR NOW!!!
if (applicable && (isLimitOrdersAllowed || !isLimitOrder) && (tt.Qty > 0 || job.Side == TradeSide.Buy))
{
var result = await CancellAllOrders(tt);
if (job.Side == TradeSide.Sell)
{
// Do not sell more then you have :D
job.Quantity = Math.Min(tt.Qty, job.Quantity);
}
job.ExchangeOrder = await ExecuteOrder(job);
job.OrderId = job.ExchangeOrder.OrderId;
tt.Updated = DateTime.Now;
tt.Events.Add(tt.Updated, $"Created order {job.OrderId}.");
TradeTaskViewModel.SerializeModel(tt);
job.ExchangeOrder.Fills.ForEach(x => tt.RegisterTrade(x));
var ttvm = TradeTasksList.SingleOrDefault(x => x.Model == tt);
ttvm.Status = BuildStatusString(tt, job);
}
return; // exit for
}
}
}
public static void Delete(TradeTask model)
{
File.Delete(Path.ChangeExtension(model.Id.ToString(), ".json"));
}
public static void SerializeModel(TradeTask model)
{
var json = JsonConvert.SerializeObject(model, Formatting.Indented);
File.WriteAllText(Path.ChangeExtension(model.Id.ToString(), ".json"), json);
}