XCCI Histogram Vol Strategy

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>
/// XCCI Histogram Vol strategy. Uses CCI zero-line crossover.
/// </summary>
public class XcciHistogramVolStrategy : Strategy
{
	private readonly StrategyParam<DataType> _candleType;
	private readonly StrategyParam<int> _cciPeriod;

	private decimal? _prevCci;

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

	public int CciPeriod
	{
		get => _cciPeriod.Value;
		set => _cciPeriod.Value = value;
	}

	public XcciHistogramVolStrategy()
	{
		_candleType = Param(nameof(CandleType), TimeSpan.FromHours(1).TimeFrame())
			.SetDisplay("Candle Type", "Timeframe", "General");

		_cciPeriod = Param(nameof(CciPeriod), 14)
			.SetGreaterThanZero()
			.SetDisplay("CCI Period", "CCI lookback", "Indicators");
	}

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

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

	protected override void OnStarted2(DateTime time)
	{
		base.OnStarted2(time);
		_prevCci = null;
		var cci = new CommodityChannelIndex { Length = CciPeriod };
		var subscription = SubscribeCandles(CandleType);
		subscription.Bind(cci, ProcessCandle).Start();
		var area = CreateChartArea();
		if (area != null) { DrawCandles(area, subscription); var cciArea = CreateChartArea(); if (cciArea != null) DrawIndicator(cciArea, cci); DrawOwnTrades(area); }
	}

	private void ProcessCandle(ICandleMessage candle, decimal cciVal)
	{
		if (candle.State != CandleStates.Finished) return;
		if (!IsFormedAndOnlineAndAllowTrading()) { _prevCci = cciVal; return; }
		if (_prevCci == null) { _prevCci = cciVal; return; }
		if (_prevCci.Value < 0m && cciVal >= 0m && Position <= 0) { if (Position < 0) BuyMarket(); BuyMarket(); }
		else if (_prevCci.Value > 0m && cciVal <= 0m && Position >= 0) { if (Position > 0) SellMarket(); SellMarket(); }
		_prevCci = cciVal;
	}
}

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 CommodityChannelIndex
from StockSharp.Algo.Strategies import Strategy


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

        self._candle_type = self.Param("CandleType", DataType.TimeFrame(TimeSpan.FromHours(1))) \
            .SetDisplay("Candle Type", "Timeframe", "General")
        self._cci_period = self.Param("CciPeriod", 14) \
            .SetDisplay("CCI Period", "CCI lookback", "Indicators")

        self._prev_cci = None

    @property
    def CandleType(self):
        return self._candle_type.Value
    @property
    def CciPeriod(self):
        return self._cci_period.Value

    def OnReseted(self):
        super(xcci_histogram_vol_strategy, self).OnReseted()
        self._prev_cci = None

    def OnStarted2(self, time):
        super(xcci_histogram_vol_strategy, self).OnStarted2(time)
        self._prev_cci = None

        cci = CommodityChannelIndex()
        cci.Length = self.CciPeriod

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

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

    def _on_process(self, candle, cci_value):
        if candle.State != CandleStates.Finished:
            return
        cv = float(cci_value)
        if not self.IsFormedAndOnlineAndAllowTrading():
            self._prev_cci = cv
            return
        if self._prev_cci is None:
            self._prev_cci = cv
            return
        # CCI crosses above zero
        if self._prev_cci < 0.0 and cv >= 0.0 and self.Position <= 0:
            if self.Position < 0:
                self.BuyMarket()
            self.BuyMarket()
        # CCI crosses below zero
        elif self._prev_cci > 0.0 and cv <= 0.0 and self.Position >= 0:
            if self.Position > 0:
                self.SellMarket()
            self.SellMarket()
        self._prev_cci = cv

    def CreateClone(self):
        return xcci_histogram_vol_strategy()