Стратегия MAMACD

using System;
using System.Linq;
using System.Collections.Generic;

using Ecng.Common;
using Ecng.Collections;
using Ecng.Serialization;

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

namespace StockSharp.Samples.Strategies;

/// <summary>
/// MAMACD trend-following strategy converted from the original MetaTrader 5 expert advisor.
/// Combines two low-price LWMA filters, a fast EMA trigger, and a MACD confirmation filter.
/// </summary>
public class MamAcdStrategy : Strategy
{
	private readonly StrategyParam<int> _firstLowMaLength;
	private readonly StrategyParam<int> _secondLowMaLength;
	private readonly StrategyParam<int> _triggerEmaLength;
	private readonly StrategyParam<int> _macdFastLength;
	private readonly StrategyParam<int> _macdSlowLength;
	private readonly StrategyParam<int> _stopLossPips;
	private readonly StrategyParam<int> _takeProfitPips;
	private readonly StrategyParam<DataType> _candleType;

	private WeightedMovingAverage _firstLowMa = null!;
	private WeightedMovingAverage _secondLowMa = null!;
	private ExponentialMovingAverage _triggerEma = null!;
	private MovingAverageConvergenceDivergence _macd = null!;

	private decimal? _previousMacd;
	private bool _readyForLong;
	private bool _readyForShort;
	private decimal _pipSize;

	/// <summary>
	/// Period of the first LWMA calculated on low prices.
	/// </summary>
	public int FirstLowMaLength
	{
		get => _firstLowMaLength.Value;
		set => _firstLowMaLength.Value = value;
	}

	/// <summary>
	/// Period of the second LWMA calculated on low prices.
	/// </summary>
	public int SecondLowMaLength
	{
		get => _secondLowMaLength.Value;
		set => _secondLowMaLength.Value = value;
	}

	/// <summary>
	/// Period of the fast EMA calculated on close prices.
	/// </summary>
	public int TriggerEmaLength
	{
		get => _triggerEmaLength.Value;
		set => _triggerEmaLength.Value = value;
	}

	/// <summary>
	/// Fast EMA period of the MACD filter.
	/// </summary>
	public int MacdFastLength
	{
		get => _macdFastLength.Value;
		set => _macdFastLength.Value = value;
	}

	/// <summary>
	/// Slow EMA period of the MACD filter.
	/// </summary>
	public int MacdSlowLength
	{
		get => _macdSlowLength.Value;
		set => _macdSlowLength.Value = value;
	}

	/// <summary>
	/// Stop-loss distance in pips. Set to zero to disable protective stop.
	/// </summary>
	public int StopLossPips
	{
		get => _stopLossPips.Value;
		set => _stopLossPips.Value = value;
	}

	/// <summary>
	/// Take-profit distance in pips. Set to zero to disable take-profit.
	/// </summary>
	public int TakeProfitPips
	{
		get => _takeProfitPips.Value;
		set => _takeProfitPips.Value = value;
	}

	/// <summary>
	/// Candle type processed by the strategy.
	/// </summary>
	public DataType CandleType
	{
		get => _candleType.Value;
		set => _candleType.Value = value;
	}

	/// <summary>
	/// Initializes <see cref="MamAcdStrategy"/> with default parameters.
	/// </summary>
	public MamAcdStrategy()
	{
		_firstLowMaLength = Param(nameof(FirstLowMaLength), 85)
		.SetGreaterThanZero()
		.SetDisplay("LWMA #1", "Length of the first LWMA on lows", "Indicators")
		;

		_secondLowMaLength = Param(nameof(SecondLowMaLength), 75)
		.SetGreaterThanZero()
		.SetDisplay("LWMA #2", "Length of the second LWMA on lows", "Indicators")
		;

		_triggerEmaLength = Param(nameof(TriggerEmaLength), 5)
		.SetGreaterThanZero()
		.SetDisplay("Trigger EMA", "Length of the EMA on closes", "Indicators")
		;

		_macdFastLength = Param(nameof(MacdFastLength), 15)
		.SetGreaterThanZero()
		.SetDisplay("MACD Fast", "Fast EMA length of MACD", "Indicators")
		;

		_macdSlowLength = Param(nameof(MacdSlowLength), 26)
		.SetGreaterThanZero()
		.SetDisplay("MACD Slow", "Slow EMA length of MACD", "Indicators")
		;

		_stopLossPips = Param(nameof(StopLossPips), 500)
		.SetNotNegative()
		.SetDisplay("Stop Loss (pips)", "Stop-loss distance in pips", "Risk management");

		_takeProfitPips = Param(nameof(TakeProfitPips), 500)
		.SetNotNegative()
		.SetDisplay("Take Profit (pips)", "Take-profit distance in pips", "Risk management");

		_candleType = Param(nameof(CandleType), TimeSpan.FromHours(4).TimeFrame())
		.SetDisplay("Candle Type", "Type of candles used for calculations", "General");
	}

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

	/// <inheritdoc />
	protected override void OnReseted()
	{
		base.OnReseted();

		_previousMacd = null;
		_readyForLong = false;
		_readyForShort = false;
		_pipSize = 0m;
	}

	/// <inheritdoc />
	protected override void OnStarted2(DateTime time)
	{
		base.OnStarted2(time);

		_firstLowMa = new WeightedMovingAverage { Length = FirstLowMaLength };
		_secondLowMa = new WeightedMovingAverage { Length = SecondLowMaLength };
		_triggerEma = new EMA { Length = TriggerEmaLength };
		_macd = new MovingAverageConvergenceDivergence
		{
			ShortMa = { Length = MacdFastLength },
			LongMa = { Length = MacdSlowLength }
		};

		var subscription = SubscribeCandles(CandleType);
		subscription.Bind(ProcessCandle).Start();

		_pipSize = CalculatePipSize();

		var takeProfit = TakeProfitPips > 0 ? new Unit(TakeProfitPips * _pipSize, UnitTypes.Absolute) : new Unit();
		var stopLoss = StopLossPips > 0 ? new Unit(StopLossPips * _pipSize, UnitTypes.Absolute) : new Unit();
		StartProtection(takeProfit, stopLoss);

		var priceArea = CreateChartArea();
		if (priceArea != null)
		{
			DrawCandles(priceArea, subscription);
			DrawIndicator(priceArea, _firstLowMa);
			DrawIndicator(priceArea, _secondLowMa);
			DrawIndicator(priceArea, _triggerEma);
			DrawOwnTrades(priceArea);

			var macdArea = CreateChartArea();
			if (macdArea != null)
			{
				macdArea.Title = "MACD";
				DrawIndicator(macdArea, _macd);
			}
		}
	}

	private void ProcessCandle(ICandleMessage candle)
	{
		if (candle.State != CandleStates.Finished)
		return;

		// Feed indicator chain: LWMAs work on low prices, EMA and MACD on closes.
		var firstLowValue = _firstLowMa.Process(new DecimalIndicatorValue(_firstLowMa, candle.LowPrice, candle.OpenTime) { IsFinal = true });
		var secondLowValue = _secondLowMa.Process(new DecimalIndicatorValue(_secondLowMa, candle.LowPrice, candle.OpenTime) { IsFinal = true });
		var triggerValue = _triggerEma.Process(new DecimalIndicatorValue(_triggerEma, candle.ClosePrice, candle.OpenTime) { IsFinal = true });
		var macdValue = _macd.Process(new DecimalIndicatorValue(_macd, candle.ClosePrice, candle.OpenTime) { IsFinal = true });

		// Wait for all indicators to collect enough history.
		if (!_firstLowMa.IsFormed || !_secondLowMa.IsFormed || !_triggerEma.IsFormed || !_macd.IsFormed)
		{
			if (_macd.IsFormed)
			_previousMacd = macdValue.ToDecimal();
			return;
		}

		// indicators already checked above

		var ma1 = firstLowValue.ToDecimal();
		var ma2 = secondLowValue.ToDecimal();
		var ma3 = triggerValue.ToDecimal();
		var macd = macdValue.ToDecimal();

		// Store the first complete MACD observation before evaluating signals.
		if (_previousMacd is null)
		{
			_previousMacd = macd;
			return;
		}

		// Skip calculations when MACD lacks momentum confirmation just like the original EA.
		if (macd == 0m || _previousMacd.Value == 0m)
		{
			_previousMacd = macd;
			return;
		}

		// Track reset flags: EMA must dip below both LWMAs to prepare for a new long, and rise above them for shorts.
		if (ma3 < ma1 && ma3 < ma2)
		_readyForLong = true;

		if (ma3 > ma1 && ma3 > ma2)
		_readyForShort = true;

		var macdImproving = macd > _previousMacd.Value;
		var longSignal = ma3 > ma1 && ma3 > ma2 && _readyForLong && (macd > 0m || macdImproving);
		var shortSignal = ma3 < ma1 && ma3 < ma2 && _readyForShort && (macd < 0m || !macdImproving);

		if (longSignal && Position <= 0)
		{
			var volume = Volume + (Position < 0 ? -Position : 0m);
			if (volume > 0)
			{
				BuyMarket();
				_readyForLong = false;
			}
		}
		else if (shortSignal && Position >= 0)
		{
			var volume = Volume + (Position > 0 ? Position : 0m);
			if (volume > 0)
			{
				SellMarket();
				_readyForShort = false;
			}
		}

		_previousMacd = macd;
	}

	private decimal CalculatePipSize()
	{
		var step = Security?.PriceStep ?? 1m;

		if (step <= 0m)
		return 1m;

		var decimals = CountDecimalPlaces(step);

		return decimals == 3 || decimals == 5 ? step * 10m : step;
	}

	private static int CountDecimalPlaces(decimal value)
	{
		value = Math.Abs(value);

		var count = 0;
		while (value != Math.Truncate(value) && count < 10)
		{
			value *= 10m;
			count++;
		}

		return count;
	}
}

import clr
import math

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

from System import TimeSpan, Decimal
from StockSharp.Messages import DataType, CandleStates, Unit, UnitTypes
from StockSharp.Algo.Strategies import Strategy
from StockSharp.Algo.Indicators import (
    WeightedMovingAverage,
    ExponentialMovingAverage,
    MovingAverageConvergenceDivergence,
)
from indicator_extensions import *

class mam_acd_strategy(Strategy):
    """MAMACD: two LWMA filters on lows, EMA trigger on close, MACD confirmation."""

    def __init__(self):
        super(mam_acd_strategy, self).__init__()

        self._first_low_ma_length = self.Param("FirstLowMaLength", 85) \
            .SetGreaterThanZero() \
            .SetDisplay("LWMA #1", "Length of the first LWMA on lows", "Indicators")
        self._second_low_ma_length = self.Param("SecondLowMaLength", 75) \
            .SetGreaterThanZero() \
            .SetDisplay("LWMA #2", "Length of the second LWMA on lows", "Indicators")
        self._trigger_ema_length = self.Param("TriggerEmaLength", 5) \
            .SetGreaterThanZero() \
            .SetDisplay("Trigger EMA", "Length of the EMA on closes", "Indicators")
        self._macd_fast_length = self.Param("MacdFastLength", 15) \
            .SetGreaterThanZero() \
            .SetDisplay("MACD Fast", "Fast EMA length of MACD", "Indicators")
        self._macd_slow_length = self.Param("MacdSlowLength", 26) \
            .SetGreaterThanZero() \
            .SetDisplay("MACD Slow", "Slow EMA length of MACD", "Indicators")
        self._stop_loss_pips = self.Param("StopLossPips", 500) \
            .SetDisplay("Stop Loss (pips)", "Stop-loss distance in pips", "Risk management")
        self._take_profit_pips = self.Param("TakeProfitPips", 500) \
            .SetDisplay("Take Profit (pips)", "Take-profit distance in pips", "Risk management")
        self._candle_type = self.Param("CandleType", DataType.TimeFrame(TimeSpan.FromHours(4))) \
            .SetDisplay("Candle Type", "Type of candles used for calculations", "General")

        self._previous_macd = None
        self._ready_for_long = False
        self._ready_for_short = False
        self._pip_size = 0.0

    @property
    def FirstLowMaLength(self):
        return int(self._first_low_ma_length.Value)
    @property
    def SecondLowMaLength(self):
        return int(self._second_low_ma_length.Value)
    @property
    def TriggerEmaLength(self):
        return int(self._trigger_ema_length.Value)
    @property
    def MacdFastLength(self):
        return int(self._macd_fast_length.Value)
    @property
    def MacdSlowLength(self):
        return int(self._macd_slow_length.Value)
    @property
    def StopLossPips(self):
        return int(self._stop_loss_pips.Value)
    @property
    def TakeProfitPips(self):
        return int(self._take_profit_pips.Value)
    @property
    def CandleType(self):
        return self._candle_type.Value

    def _calc_pip_size(self):
        sec = self.Security
        step = float(sec.PriceStep) if sec is not None and sec.PriceStep is not None and float(sec.PriceStep) > 0 else 1.0
        if step <= 0:
            return 1.0
        # Count decimal places
        v = abs(step)
        count = 0
        while v != int(v) and count < 10:
            v *= 10
            count += 1
        return step * 10.0 if (count == 3 or count == 5) else step

    def OnStarted2(self, time):
        super(mam_acd_strategy, self).OnStarted2(time)

        self._previous_macd = None
        self._ready_for_long = False
        self._ready_for_short = False

        self._first_low_ma = WeightedMovingAverage()
        self._first_low_ma.Length = self.FirstLowMaLength
        self._second_low_ma = WeightedMovingAverage()
        self._second_low_ma.Length = self.SecondLowMaLength
        self._trigger_ema = ExponentialMovingAverage()
        self._trigger_ema.Length = self.TriggerEmaLength
        self._macd_ind = MovingAverageConvergenceDivergence()
        self._macd_ind.ShortMa.Length = self.MacdFastLength
        self._macd_ind.LongMa.Length = self.MacdSlowLength

        self._pip_size = self._calc_pip_size()

        subscription = self.SubscribeCandles(self.CandleType)
        subscription.Bind(self.process_candle).Start()

        tp = Unit(self.TakeProfitPips * self._pip_size, UnitTypes.Absolute) if self.TakeProfitPips > 0 else None
        sl = Unit(self.StopLossPips * self._pip_size, UnitTypes.Absolute) if self.StopLossPips > 0 else None
        if tp is not None and sl is not None:
            self.StartProtection(takeProfit=tp, stopLoss=sl)
        elif tp is not None:
            self.StartProtection(takeProfit=tp)
        elif sl is not None:
            self.StartProtection(stopLoss=sl)

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

    def process_candle(self, candle):
        if candle.State != CandleStates.Finished:
            return

        t = candle.ServerTime
        lo = candle.LowPrice
        close = candle.ClosePrice

        first_low_val = process_float(self._first_low_ma, lo, t, True)

        second_low_val = process_float(self._second_low_ma, lo, t, True)

        trigger_val = process_float(self._trigger_ema, close, t, True)

        macd_val = process_float(self._macd_ind, close, t, True)

        if (not self._first_low_ma.IsFormed or not self._second_low_ma.IsFormed
                or not self._trigger_ema.IsFormed or not self._macd_ind.IsFormed):
            if self._macd_ind.IsFormed:
                self._previous_macd = float(macd_val.Value)
            return

        ma1 = float(first_low_val.Value)
        ma2 = float(second_low_val.Value)
        ma3 = float(trigger_val.Value)
        macd = float(macd_val.Value)

        if self._previous_macd is None:
            self._previous_macd = macd
            return

        if macd == 0 or self._previous_macd == 0:
            self._previous_macd = macd
            return

        # Track readiness flags
        if ma3 < ma1 and ma3 < ma2:
            self._ready_for_long = True
        if ma3 > ma1 and ma3 > ma2:
            self._ready_for_short = True

        macd_improving = macd > self._previous_macd
        long_signal = ma3 > ma1 and ma3 > ma2 and self._ready_for_long and (macd > 0 or macd_improving)
        short_signal = ma3 < ma1 and ma3 < ma2 and self._ready_for_short and (macd < 0 or not macd_improving)

        if long_signal and self.Position <= 0:
            self.BuyMarket()
            self._ready_for_long = False
        elif short_signal and self.Position >= 0:
            self.SellMarket()
            self._ready_for_short = False

        self._previous_macd = macd

    def OnReseted(self):
        super(mam_acd_strategy, self).OnReseted()
        self._previous_macd = None
        self._ready_for_long = False
        self._ready_for_short = False
        self._pip_size = 0.0

    def CreateClone(self):
        return mam_acd_strategy()