//+------------------------------------------------------------------+
//|                                           Chandelier_Exit_Pro.mq5|
//|                                          Copyright 2026, xxxxxxxx|
//+------------------------------------------------------------------+
#property copyright "Copyright 2026, xxxxxxxx"
#property version   "1.00" // Unified Standard & MTF Chandelier Exit release
#property description "Charles LeBeau Chandelier Exit (ATR Trailing Stop) system."
#property description "Leverages ATR v3.00 and Heikin Ashi dynamic routing with non-warping MTF steps."

#property indicator_chart_window
#property indicator_buffers 2
#property indicator_plots   1

//--- Plot 1: Chandelier Stop Line (Color Line)
#property indicator_label1  "Chandelier Stop"
#property indicator_type1   DRAW_COLOR_LINE
#property indicator_style1  STYLE_SOLID
#property indicator_width1  1
// Index 0: Bullish (clrDodgerBlue), Index 1: Bearish (clrTomato)
#property indicator_color1  clrDodgerBlue, clrTomato

//--- Included Engines & Core Tools
#include <MyIncludes\Chandelier_Exit_Calculator.mqh>
#include <MyIncludes\DataSync_Tools.mqh> // Centralized MTF synchronization daemon

//--- Input Parameters ---
input group "--- Timeframe Settings ---"
input ENUM_TIMEFRAMES           InpTimeframe      = PERIOD_CURRENT;       // Target Higher Timeframe

input group "--- Chandelier Settings ---"
input int                       InpAtrPeriod      = 22;                  // ATR & Extreme Lookback Period
input double                    InpMultiplier     = 3.0;                 // ATR Multiplier
input ENUM_APPLIED_PRICE_HA_ALL InpSourcePrice     = PRICE_CLOSE_STD;     // Price Source (Supports HA)

//--- Visual Indicator Buffers ---
double    BufferStopLine[];
double    BufferColor[];

//--- Internal HTF Data Caches
double    h_open[], h_high[], h_low[], h_close[];
double    h_res_stop[], h_res_color[];
datetime  h_time[];

//--- Global Objects & Synchronizer State
CChandelierExitCalculator *g_calculator;

bool            g_is_mtf_mode         = false;
ENUM_TIMEFRAMES g_calc_timeframe;
bool            g_data_ready          = false;
bool            g_data_synced         = false;
int             g_htf_count           = 0;
datetime        g_last_htf_time       = 0;

//+------------------------------------------------------------------+
//| Custom Indicator Initialization                                  |
//+------------------------------------------------------------------+
int OnInit()
  {
   g_data_ready    = false;
   g_data_synced   = false;
   g_htf_count     = 0;
   g_last_htf_time = 0;

//--- 1. Resolve Timeframe and validate direction
   g_calc_timeframe = InpTimeframe;
   if(g_calc_timeframe == PERIOD_CURRENT)
      g_calc_timeframe = (ENUM_TIMEFRAMES)Period();

   if(g_calc_timeframe < Period())
     {
      PrintFormat("Critical Error: Target timeframe (%s) must be >= current timeframe (%s).",
                  EnumToString(g_calc_timeframe), EnumToString(Period()));
      return(INIT_FAILED);
     }
   g_is_mtf_mode = (g_calc_timeframe > Period());

//--- 2. Bind buffers to index mapping
   SetIndexBuffer(0, BufferStopLine, INDICATOR_DATA);
   SetIndexBuffer(1, BufferColor,    INDICATOR_COLOR_INDEX);

//--- Force strict chronological alignment (false = old to new)
   ArraySetAsSeries(BufferStopLine, false);
   ArraySetAsSeries(BufferColor,    false);

   bool is_ha = (InpSourcePrice <= PRICE_HA_CLOSE);

//--- 3. Initialize Physical Chandelier Calculator
   g_calculator = new CChandelierExitCalculator();
   if(CheckPointer(g_calculator) == POINTER_INVALID)
     {
      Print("Critical Error: Failed to allocate Chandelier Exit Calculator memory.");
      return(INIT_FAILED);
     }

   if(!g_calculator.Init(InpAtrPeriod, InpMultiplier, is_ha))
     {
      Print("Critical Error: Failed to initialize Chandelier Exit Calculator.");
      return(INIT_FAILED);
     }

//--- 4. Dynamic Setup of Indicator Shortname
   string tf_str = g_is_mtf_mode ? (" " + EnumToString(g_calc_timeframe)) : "";
   string short_name = StringFormat("Chandelier Exit%s%s(%d, %.1f)",
                                    is_ha ? " HA" : "",
                                    tf_str,
                                    InpAtrPeriod,
                                    InpMultiplier);
   IndicatorSetString(INDICATOR_SHORTNAME, short_name);

//--- Drawing offset configuration
   int draw_begin = InpAtrPeriod + 5;
   if(g_is_mtf_mode)
      draw_begin = 0; // Handled dynamically in mapped buffers

   PlotIndexSetInteger(0, PLOT_DRAW_BEGIN, draw_begin);
   IndicatorSetInteger(INDICATOR_DIGITS, _Digits);

//--- 5. Initialize Background Synchronization Timer Daemon (Only if MTF is active)
   if(g_is_mtf_mode)
      EventSetTimer(1);

   return(INIT_SUCCEEDED);
  }

//+------------------------------------------------------------------+
//| Custom Indicator Deinitialization                                |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
  {
   EventKillTimer();
   if(CheckPointer(g_calculator) != POINTER_INVALID)
      delete g_calculator;
  }

//+------------------------------------------------------------------+
//| Custom Indicator Calculation Loop                                |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,
                const int prev_calculated,
                const datetime &time[],
                const double &open[],
                const double &high[],
                const double &low[],
                const double &close[],
                const long &tick_volume[],
                const long &volume[],
                const int &spread[])
  {
   int required_bars = InpAtrPeriod + 15;
   if(rates_total < required_bars)
      return 0;

   if(CheckPointer(g_calculator) == POINTER_INVALID)
      return 0;

//--- Force chronological indexing on current timeframe arrays
   ArraySetAsSeries(time,  false);
   ArraySetAsSeries(open,  false);
   ArraySetAsSeries(high,  false);
   ArraySetAsSeries(low,   false);
   ArraySetAsSeries(close, false);

   ENUM_APPLIED_PRICE price_type = (InpSourcePrice <= PRICE_HA_CLOSE) ?
                                   (ENUM_APPLIED_PRICE)(-(int)InpSourcePrice) :
                                   (ENUM_APPLIED_PRICE)InpSourcePrice;

//===================================================================
// MODE 1: Current Timeframe calculation (Standard ultra-high speed)
//===================================================================
   if(!g_is_mtf_mode)
     {
      g_calculator.Calculate(rates_total, prev_calculated, open, high, low, close,
                             BufferStopLine, BufferColor);
      return(rates_total);
     }

//===================================================================
// MODE 2: Multi-Timeframe Engine (Warp-free step synchronization)
//===================================================================
   if(!CDataSync::EnsureHTFDataReady(_Symbol, g_calc_timeframe, required_bars))
     {
      g_data_synced = false;
      return 0; // Wait for next tick to let history synchronize
     }

   g_data_synced = true;

//--- Check if a new HTF candle has opened
   datetime htf_time_current = iTime(_Symbol, g_calc_timeframe, 0);
   bool htf_updated = (htf_time_current != g_last_htf_time);

   if(htf_updated || prev_calculated == 0)
     {
      g_last_htf_time = htf_time_current;

      int htf_bars = iBars(_Symbol, g_calc_timeframe);
      if(htf_bars < required_bars)
        {
         g_data_ready = false;
         return 0;
        }

      g_htf_count = MathMin(htf_bars, 3000); // Guard rails to prevent memory overload

      // Resize all HTF caching arrays
      ArrayResize(h_time,      g_htf_count);
      ArrayResize(h_open,      g_htf_count);
      ArrayResize(h_high,      g_htf_count);
      ArrayResize(h_low,       g_htf_count);
      ArrayResize(h_close,     g_htf_count);
      ArrayResize(h_res_stop,  g_htf_count);
      ArrayResize(h_res_color, g_htf_count);

      // Force chronological structure on high-level arrays
      ArraySetAsSeries(h_time,      false);
      ArraySetAsSeries(h_open,      false);
      ArraySetAsSeries(h_high,      false);
      ArraySetAsSeries(h_low,       false);
      ArraySetAsSeries(h_close,     false);
      ArraySetAsSeries(h_res_stop,  false);
      ArraySetAsSeries(h_res_color, false);

      // Copy basic pricing data
      if(CopyTime(_Symbol,  g_calc_timeframe, 0, g_htf_count, h_time)  != g_htf_count ||
         CopyOpen(_Symbol,  g_calc_timeframe, 0, g_htf_count, h_open)  != g_htf_count ||
         CopyHigh(_Symbol,  g_calc_timeframe, 0, g_htf_count, h_high)  != g_htf_count ||
         CopyLow(_Symbol,   g_calc_timeframe, 0, g_htf_count, h_low)   != g_htf_count ||
         CopyClose(_Symbol, g_calc_timeframe, 0, g_htf_count, h_close) != g_htf_count)
        {
         g_data_ready = false;
         return 0;
        }

      //--- Calculate core indicators directly on high timeframe (Initial setup)
      g_calculator.Calculate(g_htf_count, 0, h_open, h_high, h_low, h_close, h_res_stop, h_res_color);

      g_data_ready = true;
     }

   if(!g_data_ready)
      return 0;

//--- 5. Real-Time Update for the active forming HTF candle (Index: g_htf_count - 1) on every tick
   int live_idx = g_htf_count - 1;
   if(live_idx >= required_bars)
     {
      double o[1], h[1], l[1], c[1];
      int shift = iBarShift(_Symbol, g_calc_timeframe, htf_time_current, false);
      if(shift >= 0 &&
         CopyOpen(_Symbol,  g_calc_timeframe, shift, 1, o) == 1 &&
         CopyHigh(_Symbol,  g_calc_timeframe, shift, 1, h) == 1 &&
         CopyLow(_Symbol,   g_calc_timeframe, shift, 1, l) == 1 &&
         CopyClose(_Symbol, g_calc_timeframe, shift, 1, c) == 1)
        {
         h_open[live_idx]  = o[0];
         h_high[live_idx]  = h[0];
         h_low[live_idx]   = l[0];
         h_close[live_idx] = c[0];

         // Stateful, O(1) mock update for the live bar
         g_calculator.Calculate(g_htf_count, g_htf_count, h_open, h_high, h_low, h_close, h_res_stop, h_res_color);
        }
     }

//--- 6. Warp-free step force (Staircase Solution anchor determination)
   int start = (prev_calculated > 0) ? prev_calculated - 1 : 0;

   int first_bar_of_forming_htf = rates_total - 1;
   while(first_bar_of_forming_htf > 0 &&
         iBarShift(_Symbol, g_calc_timeframe, time[first_bar_of_forming_htf], false) == 0)
     {
      first_bar_of_forming_htf--;
     }
   first_bar_of_forming_htf++; // Anchor set to start of current HTF period block

   if(start > first_bar_of_forming_htf)
      start = first_bar_of_forming_htf;

//--- 7. Map HTF Calculated results cleanly to the lower chart timeframe (O(1) complexity)
   for(int i = start; i < rates_total; i++)
     {
      datetime t = time[i];
      int shift_htf = iBarShift(_Symbol, g_calc_timeframe, t, false);

      if(shift_htf >= 0)
        {
         int idx_htf = g_htf_count - 1 - shift_htf;
         if(idx_htf >= 0 && idx_htf < g_htf_count)
           {
            BufferStopLine[i] = h_res_stop[idx_htf];
            BufferColor[i]    = h_res_color[idx_htf];
           }
         else
           {
            BufferStopLine[i] = EMPTY_VALUE;
            BufferColor[i]    = 0.0;
           }
        }
      else
        {
         BufferStopLine[i] = EMPTY_VALUE;
         BufferColor[i]    = 0.0;
        }
     }

   return(rates_total);
  }

//+------------------------------------------------------------------+
//| OnTimer Event Handler                                            |
//+------------------------------------------------------------------+
void OnTimer()
  {
//--- Delegate asynchronous history checking and forced redraws to DataSync daemon using correct lookback period
   int required_bars = InpAtrPeriod + 15;
   CDataSync::OnTimerUpdate(_Symbol, g_calc_timeframe, required_bars, g_data_synced);
  }
//+------------------------------------------------------------------+
//+------------------------------------------------------------------+