//+------------------------------------------------------------------+
//|                                GL_CircuitBreaker_Guardian.mq5    |
//|         ProofNexa / GrokLab Institutional CRO Equity Guardian    |
//|         https://quant-b2b-risk-gate-api.vercel.app               |
//+------------------------------------------------------------------+
#property copyright "ProofNexa Quant Risk Lab"
#property link      "https://quant-b2b-risk-gate-api.vercel.app"
#property version   "1.30"
#property description "1-Chart Account-Wide Daily Drawdown Circuit Breaker + Zero-SL Auto-Repair + Spread Spike Monitor"
#property description "Recommended Execution: Exness Pro / Raw Spread (0% Stop-Out) -> Partner Code: hrakh7d3jt"

#include <Trade\Trade.mqh>

input double InpMaxDailyDrawdownPct = 5.0;   // Max Daily Floating Drawdown (%) before Emergency Liquidation
input bool   InpAutoAttachAtrSl     = true;  // Auto-attach 2.5x H1 ATR Stop-Loss if any EA opens SL=0 position
input double InpEmergencyAtrMult    = 2.5;   // Emergency ATR Multiplier for naked positions
input int    InpMaxSpreadPoints     = 30;    // Spread Warning Threshold (Points)
input long   InpGuardianMagic       = 99990001;

CTrade g_trade;
double g_dailyPeakEquity = 0.0;
int    g_lastDayOfYear   = -1;

int OnInit()
{
   g_dailyPeakEquity = AccountInfoDouble(ACCOUNT_EQUITY);
   MqlDateTime dt;
   TimeToStruct(TimeCurrent(), dt);
   g_lastDayOfYear = dt.day_of_year;
   EventSetMillisecondTimer(500);
   Print("[GL_CircuitBreaker] Active. MaxDailyDD=", InpMaxDailyDrawdownPct, "% | Recommended Low-Spread Execution: https://one.exnessonelink.com/a/hrakh7d3jt (Code: hrakh7d3jt)");
   return(INIT_SUCCEEDED);
}

void OnDeinit(const int reason)
{
   EventKillTimer();
   Comment("");
}

void EnforceZeroSlRepair()
{
   if(!InpAutoAttachAtrSl) return;
   for(int i = PositionsTotal() - 1; i >= 0; i--)
   {
      ulong ticket = PositionGetTicket(i);
      if(ticket == 0) continue;
      double curSl = PositionGetDouble(POSITION_SL);
      if(curSl > 0.0) continue;

      string sym = PositionGetString(POSITION_SYMBOL);
      MqlRates rates[];
      ArraySetAsSeries(rates, true);
      if(CopyRates(sym, PERIOD_H1, 1, 15, rates) == 15)
      {
         double trSum = 0.0;
         for(int k = 0; k < 14; k++)
            trSum += MathMax(rates[k].high, rates[k+1].close) - MathMin(rates[k].low, rates[k+1].close);
         double atr = trSum / 14.0;
         if(atr > 0.0)
         {
            int digits = (int)SymbolInfoInteger(sym, SYMBOL_DIGITS);
            double openPrice = PositionGetDouble(POSITION_PRICE_OPEN);
            double curTp     = PositionGetDouble(POSITION_TP);
            long   posType   = PositionGetInteger(POSITION_TYPE);
            double newSl     = (posType == POSITION_TYPE_BUY)
                               ? NormalizeDouble(openPrice - InpEmergencyAtrMult * atr, digits)
                               : NormalizeDouble(openPrice + InpEmergencyAtrMult * atr, digits);
            g_trade.SetExpertMagicNumber(InpGuardianMagic);
            if(g_trade.PositionModify(ticket, newSl, curTp))
               PrintFormat("[ZERO-SL GUARD] Attached %.1fx H1 ATR SL=%.5f to ticket #%I64u (%s)", InpEmergencyAtrMult, newSl, ticket, sym);
         }
      }
   }
}

void CheckEquityCircuitBreaker()
{
   MqlDateTime dt;
   TimeToStruct(TimeCurrent(), dt);
   double equity = AccountInfoDouble(ACCOUNT_EQUITY);

   if(dt.day_of_year != g_lastDayOfYear)
   {
      g_dailyPeakEquity = equity;
      g_lastDayOfYear = dt.day_of_year;
      GlobalVariableSet("EMERGENCY_HALT", 0.0);
   }

   if(equity > g_dailyPeakEquity)
      g_dailyPeakEquity = equity;

   double ddPct = (g_dailyPeakEquity > 0.0) ? ((g_dailyPeakEquity - equity) / g_dailyPeakEquity) * 100.0 : 0.0;
   long spreadPts = SymbolInfoInteger(_Symbol, SYMBOL_SPREAD);
   double curSpreadPips = (double)spreadPts / 10.0;
   double exnessRawPips = (StringFind(_Symbol, "XAU") >= 0 || StringFind(_Symbol, "GOLD") >= 0) ? 0.5 : 0.2;
   double excessPips = MathMax(0.0, curSpreadPips - exnessRawPips);
   double estAnnualBleedUsd = excessPips * 10.0 * 0.30 * 100.0 * 12.0; // Based on 0.30 lots x 100 trades/mo

   string hud = StringFormat(
      "=== ProofNexa / GrokLab CRO Equity Circuit Breaker v1.40 ===\n"
      "Daily Peak Equity : %.2f | Current Equity: %.2f (Daily DD: %.2f%% / Limit: %.2f%%)\n"
      "Live Spread       : %d pts (%.1f pips) %s\n"
      "Est. Spread Bleed : -$%.0f / year lost vs Exness Pro/Raw (0.0p, 0%% Stop-Out, $0 Swap)\n"
      "60s Sub-Account   : https://one.exnessonelink.com/a/hrakh7d3jt (Partner Code: hrakh7d3jt)\n"
      "Zero-SL AutoGuard : %s | Studio: https://quant-b2b-risk-gate-api.vercel.app/quant",
      g_dailyPeakEquity, equity, ddPct, InpMaxDailyDrawdownPct,
      spreadPts, curSpreadPips, (spreadPts > InpMaxSpreadPoints ? "[HIGH SPREAD BLEED WARNING]" : "[OK]"),
      estAnnualBleedUsd,
      (InpAutoAttachAtrSl ? "ENABLED" : "OFF")
   );
   Comment(hud);

   if(ddPct >= InpMaxDailyDrawdownPct)
   {
      PrintFormat("!!! [CIRCUIT BREAKER TRIGGERED] Daily DD %.2f%% >= %.2f%%. Liquidating all positions! !!!", ddPct, InpMaxDailyDrawdownPct);
      GlobalVariableSet("EMERGENCY_HALT", 1.0);
      for(int i = PositionsTotal() - 1; i >= 0; i--)
      {
         ulong ticket = PositionGetTicket(i);
         if(ticket > 0)
         {
            string sym = PositionGetString(POSITION_SYMBOL);
            g_trade.SetExpertMagicNumber(InpGuardianMagic);
            g_trade.SetDeviationInPoints(100);
            g_trade.SetTypeFillingBySymbol(sym);
            g_trade.PositionClose(ticket, 100);
         }
      }
   }
}

void OnTimer()
{
   EnforceZeroSlRepair();
   CheckEquityCircuitBreaker();
}

void OnTick()
{
   EnforceZeroSlRepair();
   CheckEquityCircuitBreaker();
}
//+------------------------------------------------------------------+