Стратегия Sprut Pending Order Grid

using System;
using System.Collections.Generic;

using StockSharp.Algo.Indicators;
using StockSharp.Algo.Strategies;
using StockSharp.BusinessEntities;
using StockSharp.Messages;

namespace StockSharp.Samples.Strategies;

/// <summary>
/// Sprut Pending Order Grid strategy. Uses Highest/Lowest midline crossover (period 14).
/// </summary>
public class SprutPendingOrderGridStrategy : Strategy
{
	private readonly StrategyParam<DataType> _candleType;
	private readonly StrategyParam<int> _period;
	private decimal? _prevMid;

	public DataType CandleType { get => _candleType.Value; set => _candleType.Value = value; }
	public int Period { get => _period.Value; set => _period.Value = value; }

	public SprutPendingOrderGridStrategy()
	{
		_candleType = Param(nameof(CandleType), TimeSpan.FromHours(4).TimeFrame()).SetDisplay("Candle Type", "Timeframe", "General");
		_period = Param(nameof(Period), 14).SetGreaterThanZero().SetDisplay("Channel Period", "Highest/Lowest lookback", "Indicators");
	}

	public override IEnumerable<(Security sec, DataType dt)> GetWorkingSecurities() => [(Security, CandleType)];

	/// <inheritdoc />
	protected override void OnReseted()
	{
		base.OnReseted();
		_prevMid = null;
	}

	protected override void OnStarted2(DateTime time)
	{
		base.OnStarted2(time);
		_prevMid = null;
		var highest = new Highest { Length = Period };
		var lowest = new Lowest { Length = Period };
		var subscription = SubscribeCandles(CandleType);
		subscription.Bind(highest, lowest, ProcessCandle).Start();
		var area = CreateChartArea();
		if (area != null) { DrawCandles(area, subscription); DrawOwnTrades(area); }
	}

	private void ProcessCandle(ICandleMessage candle, decimal high, decimal low)
	{
		if (candle.State != CandleStates.Finished) return;
		var mid = (high + low) / 2m;
		var close = candle.ClosePrice;
		if (!IsFormedAndOnlineAndAllowTrading()) { _prevMid = mid; return; }
		if (_prevMid == null) { _prevMid = mid; return; }
		if (close > mid && close > _prevMid.Value && Position <= 0) { if (Position < 0) BuyMarket(); BuyMarket(); }
		else if (close < mid && close < _prevMid.Value && Position >= 0) { if (Position > 0) SellMarket(); SellMarket(); }
		_prevMid = mid;
	}
}

import clr

clr.AddReference("StockSharp.Messages")
clr.AddReference("StockSharp.Algo")
clr.AddReference("StockSharp.Algo.Indicators")
clr.AddReference("StockSharp.Algo.Strategies")

from System import TimeSpan
from StockSharp.Messages import DataType, CandleStates
from StockSharp.Algo.Indicators import Highest, Lowest
from StockSharp.Algo.Strategies import Strategy


class sprut_pending_order_grid_strategy(Strategy):
    def __init__(self):
        super(sprut_pending_order_grid_strategy, self).__init__()

        self._candle_type = self.Param("CandleType", DataType.TimeFrame(TimeSpan.FromHours(4))) \
            .SetDisplay("Candle Type", "Timeframe", "General")
        self._period = self.Param("Period", 14) \
            .SetDisplay("Channel Period", "Highest/Lowest lookback", "Indicators")

        self._prev_mid = None

    @property
    def CandleType(self):
        return self._candle_type.Value
    @property
    def Period(self):
        return self._period.Value

    def OnReseted(self):
        super(sprut_pending_order_grid_strategy, self).OnReseted()
        self._prev_mid = None

    def OnStarted2(self, time):
        super(sprut_pending_order_grid_strategy, self).OnStarted2(time)
        self._prev_mid = None

        highest = Highest()
        highest.Length = self.Period
        lowest = Lowest()
        lowest.Length = self.Period

        subscription = self.SubscribeCandles(self.CandleType)
        subscription.Bind(highest, lowest, self._on_process).Start()

        area = self.CreateChartArea()
        if area is not None:
            self.DrawCandles(area, subscription)
            self.DrawOwnTrades(area)

    def _on_process(self, candle, high_value, low_value):
        if candle.State != CandleStates.Finished:
            return
        hv = float(high_value)
        lv = float(low_value)
        mid = (hv + lv) / 2.0
        close = float(candle.ClosePrice)
        if not self.IsFormedAndOnlineAndAllowTrading():
            self._prev_mid = mid
            return
        if self._prev_mid is None:
            self._prev_mid = mid
            return
        if close > mid and close > self._prev_mid and self.Position <= 0:
            if self.Position < 0:
                self.BuyMarket()
            self.BuyMarket()
        elif close < mid and close < self._prev_mid and self.Position >= 0:
            if self.Position > 0:
                self.SellMarket()
            self.SellMarket()
        self._prev_mid = mid

    def CreateClone(self):
        return sprut_pending_order_grid_strategy()