//+------------------------------------------------------------------+
//|                                                       System.mqh |
//|                                  Copyright 2025, MetaQuotes Ltd. |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2025, MetaQuotes Ltd."
#property link      "https://www.mql5.com"
#property version   "1.00"

#include "Chapters/Chapter2.mqh"
#include "Chapters/Chapter3.mqh"

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
class System
  {
private:
   string            symbol;
   ENUM_TIMEFRAMES   timeframe;

   //persistance launch
   int               candles;
   bool              initialized;

   datetime          lastProcessedTime;
   CommonHelper      com;


   Chapter2          chapter2;
   Chapter3          chapter3;
   StructureLevels*   levels;
   //+------------------------------------------------------------------+
   //|                                                                  |
   //+------------------------------------------------------------------+
   int               OnInitChapter(AbstractChapter &chapter, string prefix, int lr = 3, int look = 1)
     {
      return chapter.OnInit(levels, prefix, timeframe, com);
     }
   //+------------------------------------------------------------------+
   //|                                                                  |
   //+------------------------------------------------------------------+

   void              OnCalculateChapter(AbstractChapter &chapter, int i)
     {
      chapter.OnCalculate(i, com);
     }
   //+------------------------------------------------------------------+
   //|                                                                  |
   //+------------------------------------------------------------------+

   bool              InitChapters()
     {
      if(OnInitChapter(chapter2, "chapter2") != INIT_SUCCEEDED)
        {
         Print("SmcSystem: failed to init Chapter2");
         return false;
        }
      chapter2.SetEventBus(&bus);

      if(OnInitChapter(chapter3, "chapter3") != INIT_SUCCEEDED)
        {
         Print("SmcSystem: failed to init Chapter3");
         return false;
        }
      chapter3.SetEventBus(&bus);

      return true;
     }
   //+------------------------------------------------------------------+
   //|                                                                  |
   //+------------------------------------------------------------------+

   void              RunAllChapters(int i)
     {
      OnCalculateChapter(chapter2, i);
      OnCalculateChapter(chapter3, i);
     }
   //+------------------------------------------------------------------+
   //|                                                                  |
   //+------------------------------------------------------------------+

   int               ReprocessStartIndex()
     {
      int bars = com.Bars();
      if(bars <= 0)
         return 0;
      if(lastProcessedTime == 0)
         return 0;

      int lastIndex = com.TimeIndex(lastProcessedTime);
      if(!com.IsValidIndex(lastIndex))
         return 0;

      int start = lastIndex - candles ;
      if(start < 0)
         start = 0;
      if(start >= bars)
         start = bars - 1;

      return start;
     }
   //+------------------------------------------------------------------+
   //|                                                                  |
   //+------------------------------------------------------------------+

   void              launch()
     {

      for(int i = 0; i < com.Bars(); i++)
         RunAllChapters(i);

      if(com.Bars() > 0)
         lastProcessedTime = com.TimeAt(com.Bars() - 1);
      initialized = true;

      createVert("j", com.TimeAt(0));
     }
   //+------------------------------------------------------------------+
   //|                                                                  |
   //+------------------------------------------------------------------+


public:
                     System();
                    ~System();

   virtual int       OnInit(string s, ENUM_TIMEFRAMES tf, int lr = 3, int look = 1);
   virtual void      OnCalculate();

   //+------------------------------------------------------------------+
   //|                                                                  |
   //+------------------------------------------------------------------+


  };
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
System::System()
  {

  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
System::~System()
  {
   delete levels;
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int System::OnInit(string s, ENUM_TIMEFRAMES tf, int lr = 3, int look = 1)
  {
   symbol      = s;
   timeframe   = tf;
   initialized = false;
   candles = lr;
   levels = new StructureLevels();

   if(com.OnInit(s, tf, lr, look) == -1)
     {
      return INIT_FAILED;
     }

   if(!InitChapters())
      return INIT_FAILED;



   return INIT_SUCCEEDED;
  }

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
void System::OnCalculate()
  {
   if(!initialized)
     {
      com.UpdateBars(timeframe, symbol, true, 1);
      launch();

     }
   else
     {
      if(!com.OnNewBar())
         return;
      com.UpdateBars(timeframe, symbol);
      int start = ReprocessStartIndex();
      int end   = com.Bars() - 1;

      for(int i = start; i <= end; i++)
         RunAllChapters(i);

      if(end >= 0)
         lastProcessedTime = com.TimeAt(end);
     }

//  Print("[System] : OnCalculate");
  }
//+------------------------------------------------------------------+