//+------------------------------------------------------------------+
//|                                           TheGoldenGhost_AI.mq5 |
//|                                  Specialist XAU/USD Quant Trader |
//+------------------------------------------------------------------+
#property copyright "AI Expert - Global Competition"
#property version   "1.00"
#property strict

//--- INPUT PARAMETERS
input double Risk_Per_Trade = 1.5;    // Risiko 1.5% per Posisi
input int    ATR_Period     = 14;     // Filter Volatilitas Dinamis
input int    RSI_Period     = 7;      // Filter Momentum Cepat
input int    MagicNumber    = 888168; // ID Unik AI

//--- GLOBAL VARIABLES
double min_lot, max_lot, lot_step;
int    stoplevel;

//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit() {
   min_lot  = SymbolInfoDouble(_Symbol, SYMBOL_VOLUME_MIN);
   max_lot  = SymbolInfoDouble(_Symbol, SYMBOL_VOLUME_MAX);
   lot_step = SymbolInfoDouble(_Symbol, SYMBOL_VOLUME_STEP);
   return(INIT_SUCCEEDED);
}

//+------------------------------------------------------------------+
//| Core Logic: Liquidity Sweep & Mean Reversion                     |
//+------------------------------------------------------------------+
void OnTick() {
   if(!IsNewBar()) return; // Eksekusi hanya di awal candle baru untuk efisiensi

   double rsi[];
   double atr[];
   int rsi_handle = iRSI(_Symbol, _Period, RSI_Period, PRICE_CLOSE);
   int atr_handle = iATR(_Symbol, _Period, ATR_Period);
   
   ArraySetAsSeries(rsi, true);
   ArraySetAsSeries(atr, true);
   CopyBuffer(rsi_handle, 0, 0, 3, rsi);
   CopyBuffer(atr_handle, 0, 0, 3, atr);

   double close_1 = iClose(_Symbol, _Period, 1);
   double high_1  = iHigh(_Symbol, _Period, 1);
   double low_1   = iLow(_Symbol, _Period, 1);

   // STRATEGI: BUY SAAT LIQUIDITY SWEEP (HARGA MENEMBUS LOW SEBELUMNYA LALU REJECT)
   if(close_1 > low_1 && iLow(_Symbol, _Period, 0) < low_1 && rsi[0] < 30) {
      double sl = low_1 - (atr[0] * 1.5);
      double tp = close_1 + (atr[0] * 3.0);
      ExecuteTrade(ORDER_TYPE_BUY, sl, tp);
   }

   // STRATEGI: SELL SAAT LIQUIDITY SWEEP (HARGA MENEMBUS HIGH SEBELUMNYA LALU REJECT)
   if(close_1 < high_1 && iHigh(_Symbol, _Period, 0) > high_1 && rsi[0] > 70) {
      double sl = high_1 + (atr[0] * 1.5);
      double tp = close_1 - (atr[0] * 3.0);
      ExecuteTrade(ORDER_TYPE_SELL, sl, tp);
   }
}

//+------------------------------------------------------------------+
//| Fungsi Eksekusi & Money Management                               |
//+------------------------------------------------------------------+
void ExecuteTrade(ENUM_ORDER_TYPE type, double sl, double tp) {
   double balance = AccountInfoDouble(ACCOUNT_BALANCE);
   double dist    = MathAbs(SymbolInfoDouble(_Symbol, SYMBOL_BID) - sl) / _Point;
   double lot     = NormalizeDouble((balance * (Risk_Per_Trade/100)) / (dist * 10), 2);
   
   if(lot < min_lot) lot = min_lot;
   
   MqlTradeRequest request = {};
   MqlTradeResult  result  = {};
   
   request.action       = TRADE_ACTION_DEAL;
   request.symbol       = _Symbol;
   request.volume       = lot;
   request.type         = type;
   request.price        = (type == ORDER_TYPE_BUY) ? SymbolInfoDouble(_Symbol, SYMBOL_ASK) : SymbolInfoDouble(_Symbol, SYMBOL_BID);
   request.sl           = sl;
   request.tp           = tp;
   request.deviation    = 10;
   request.magic        = MagicNumber;
   request.comment      = "Golden Ghost AI - Mobile Dominance";
   request.type_filling = ORDER_FILLING_IOC;

   OrderSend(request, result);
}

bool IsNewBar() {
   static datetime last_time = 0;
   datetime curr_time = iTime(_Symbol, _Period, 0);
   if(last_time != curr_time) {
      last_time = curr_time;
      return true;
   }
   return false;
}