Expert new function, integration AC_Signal_trend, Signal Variable

//+------------------------------------------------------------------+
//|                                                        Indicatortrader.mq5 |
//|                                  Copyright 2024, MetaQuotes Ltd. |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2024, MetaQuotes Ltd."
#property link      "https://www.mql5.com"
#property version   "1.00"
#property strict
//+------------------------------------------------------------------+
//| Include                                                          |
//+------------------------------------------------------------------+
#include <Expert\Expert.mqh>
//--- available signals
#include <Expert\Signal\SignalAC.mqh>
//--- available trailing
#include <Expert\Trailing\TrailingFixedPips.mqh>
//--- available money management
#include <Expert\Money\MoneyFixedLot.mqh>
//+------------------------------------------------------------------+
//| Inputs                                                           |
//+------------------------------------------------------------------+
//--- inputs for expert
input string Expert_Title                  ="Test2"; // Document name
ulong        Expert_MagicNumber            =31528;   //
bool         Expert_EveryTick              =true;   //
//--- inputs for main signal
input int    Signal_ThresholdOpen          =10;      // Signal threshold value to open [0...100]
input int    Signal_ThresholdClose         =10;      // Signal threshold value to close [0...100]
input double Signal_PriceLevel             =0.0;     // Price level to execute a deal
input double Signal_StopLevel              =2.50;    // Stop Loss level (in points)
input double Signal_TakeLevel              =0.1;    // Take Profit level (in points)
input int    Signal_Expiration             =1;       // Expiration of pending orders (in bars)
input double Signal_AC_Weight              =0.2;     // Accelerator Oscillator Weight [0...1.0]
input double Signal_AC_trend               =0.0;     // Define an input variable for the AC trend signal
//--- inputs for trailing
input int    Trailing_FixedPips_StopLevel  =0;      // Stop Loss trailing level (in points)
input int    Trailing_FixedPips_ProfitLevel=0;      // Take Profit trailing level (in points)
//--- inputs for money
input double Money_FixLot_Percent          =10.0;    // Percent
input double Money_FixLot_Lots             =0.1;     // Fixed volume
//+------------------------------------------------------------------+
//| Global expert object                                             |
//+------------------------------------------------------------------+
CExpert ExtExpert;
//+------------------------------------------------------------------+
//| Initialization function of the expert                            |
//+------------------------------------------------------------------+
int OnInit()
  {
//--- Initializing expert
   if(!ExtExpert.Init(Symbol(),Period(),Expert_EveryTick,Expert_MagicNumber))
     {
      //--- failed
      printf(__FUNCTION__+": error initializing expert");
      ExtExpert.Deinit();
      return(INIT_FAILED);
     }
//--- Creating signal
   CExpertSignal *signal=new CExpertSignal;
   if(signal==NULL)
     {
      //--- failed
      printf(__FUNCTION__+": error creating signal");
      ExtExpert.Deinit();
      return(INIT_FAILED);
     }
     {
   // Initialization code
   Print("The initial value of Signal_AC_trend is: ", Signal_AC_trend);
   return(INIT_SUCCEEDED);
  }
//---
   ExtExpert.InitSignal(signal);
   signal.ThresholdOpen(Signal_ThresholdOpen);
   signal.ThresholdClose(Signal_ThresholdClose);
   signal.PriceLevel(Signal_PriceLevel);
   signal.StopLevel(Signal_StopLevel);
   signal.TakeLevel(Signal_TakeLevel);
   signal.Expiration(Signal_Expiration);
//--- Creating filter CSignalAC
   CSignalAC *filter0=new CSignalAC;
   if(filter0==NULL)
     {
      //--- failed
      printf(__FUNCTION__+": error creating filter0");
      ExtExpert.Deinit();
      return(INIT_FAILED);
     }
   signal.AddFilter(filter0);
//--- Set filter parameters
   filter0.Weight(Signal_AC_Weight);
//--- Creation of trailing object
   CTrailingFixedPips *trailing=new CTrailingFixedPips;
   if(trailing==NULL)
     {
      //--- failed
      printf(__FUNCTION__+": error creating trailing");
      ExtExpert.Deinit();
      return(INIT_FAILED);
     }
//--- Add trailing to expert (will be deleted automatically))
   if(!ExtExpert.InitTrailing(trailing))
     {
      //--- failed
      printf(__FUNCTION__+": error initializing trailing");
      ExtExpert.Deinit();
      return(INIT_FAILED);
     }
//--- Set trailing parameters
   trailing.StopLevel(Trailing_FixedPips_StopLevel);
   trailing.ProfitLevel(Trailing_FixedPips_ProfitLevel);
//--- Creation of money object
   CMoneyFixedLot *money=new CMoneyFixedLot;
   if(money==NULL)
     {
      //--- failed
      printf(__FUNCTION__+": error creating money");
      ExtExpert.Deinit();
      return(INIT_FAILED);
     }
//--- Add money to expert (will be deleted automatically))
   if(!ExtExpert.InitMoney(money))
     {
      //--- failed
      printf(__FUNCTION__+": error initializing money");
      ExtExpert.Deinit();
      return(INIT_FAILED);
     }
//--- Set money parameters
   money.Percent(Money_FixLot_Percent);
   money.Lots(Money_FixLot_Lots);
//--- Check all trading objects parameters
   if(!ExtExpert.ValidationSettings())
     {
      //--- failed
      ExtExpert.Deinit();
      return(INIT_FAILED);
     }
//--- Tuning of all necessary indicators
   if(!ExtExpert.InitIndicators())
     {
      //--- failed
      printf(__FUNCTION__+": error initializing indicators");
      ExtExpert.Deinit();
      return(INIT_FAILED);
     }
//--- ok
   return(INIT_SUCCEEDED);
  }
//+------------------------------------------------------------------+
//| Deinitialization function of the expert                          |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
  {
   ExtExpert.Deinit();
  }
//+------------------------------------------------------------------+
//| "Trade" event handler function                                   |
//+------------------------------------------------------------------+
void OnTrade()
  {
   ExtExpert.OnTrade();
  }
//+------------------------------------------------------------------+
//| "Timer" event handler function                                   |
//+------------------------------------------------------------------+
void OnTimer()
  {
   ExtExpert.OnTimer();
  }
//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
  {
   // Example usage of Signal_AC_trend
   double ac_value = iAC(NULL, 0, 0); // Get the current value of the Accelerator Oscillator (AC)

   if(ac_value > Signal_AC_trend)
     {
      // AC value is above the trend signal, take action
      Print("AC value is above the trend signal. AC: ", ac_value, " Signal: ", Signal_AC_trend);
     }
   else
     {
      // AC value is below the trend signal, take action
      Print("AC value is below the trend signal. AC: ", ac_value, " Signal: ", Signal_AC_trend);
     }
  }
//+------------------------------------------------------------------+