//+------------------------------------------------------------------+
//|                                           PythonBridge.mqh       |
//|                      MQL5 to Python Integration Bridge           |
//|                 For Advanced Quantum Calculations (Optional)     |
//+------------------------------------------------------------------+
#property copyright "ForexTrader Quantum EA"
#property link      "https://github.com/simonokwundue-ops/Experienced-FX-Trader"
#property version   "1.00"
#property strict

//+------------------------------------------------------------------+
//| Python Integration Bridge Class                                  |
//| Note: Python integration is optional and not required for EA     |
//| The EA works standalone with built-in quantum-inspired algos    |
//+------------------------------------------------------------------+
class CPythonBridge
{
private:
   string m_pythonScriptPath;
   string m_dataExchangePath;
   bool m_pythonEnabled;
   
public:
   //--- Constructor
   CPythonBridge(string scriptPath = "", bool enabled = false)
   {
      m_pythonScriptPath = scriptPath;
      m_pythonEnabled = enabled;
      
      // Set data exchange directory
      m_dataExchangePath = TerminalInfoString(TERMINAL_DATA_PATH) + "\\MQL5\\Files\\QuantumExchange\\";
   }
   
   //--- Check if Python integration is enabled
   bool IsPythonEnabled() { return m_pythonEnabled; }
   
   //--- Enable/disable Python integration
   void SetPythonEnabled(bool enabled) { m_pythonEnabled = enabled; }
   
   //--- Write price data for Python processing (optional feature)
   bool WritePriceDataForPython(const string symbol, const ENUM_TIMEFRAMES timeframe,
                                int numCandles = 256)
   {
      if(!m_pythonEnabled)
         return false;
      
      // Get price data
      MqlRates rates[];
      ArraySetAsSeries(rates, true);
      int copied = CopyRates(symbol, timeframe, 0, numCandles, rates);
      
      if(copied < numCandles)
      {
         Print("PythonBridge: Failed to copy price data");
         return false;
      }
      
      // Create data file
      string filename = "quantum_input_" + symbol + ".csv";
      int fileHandle = FileOpen(filename, FILE_WRITE|FILE_CSV|FILE_ANSI, ',');
      
      if(fileHandle == INVALID_HANDLE)
      {
         Print("PythonBridge: Failed to create data file");
         return false;
      }
      
      // Write header
      FileWrite(fileHandle, "time", "open", "high", "low", "close", "volume");
      
      // Write data (oldest to newest for Python)
      for(int i = copied - 1; i >= 0; i--)
      {
         FileWrite(fileHandle, 
                  TimeToString(rates[i].time, TIME_DATE|TIME_MINUTES),
                  DoubleToString(rates[i].open, 5),
                  DoubleToString(rates[i].high, 5),
                  DoubleToString(rates[i].low, 5),
                  DoubleToString(rates[i].close, 5),
                  IntegerToString(rates[i].tick_volume));
      }
      
      FileClose(fileHandle);
      Print("PythonBridge: Price data written to ", filename);
      
      return true;
   }
   
   //--- Read quantum analysis results from Python (optional feature)
   bool ReadPythonQuantumResults(double &upProbability, double &downProbability)
   {
      if(!m_pythonEnabled)
         return false;
      
      string filename = "quantum_output.csv";
      
      // Check if file exists
      if(!FileIsExist(filename))
      {
         Print("PythonBridge: Output file not found");
         return false;
      }
      
      int fileHandle = FileOpen(filename, FILE_READ|FILE_CSV|FILE_ANSI, ',');
      
      if(fileHandle == INVALID_HANDLE)
      {
         Print("PythonBridge: Failed to open output file");
         return false;
      }
      
      // Read header
      string header = FileReadString(fileHandle);
      
      // Read values
      if(!FileIsEnding(fileHandle))
      {
         upProbability = StringToDouble(FileReadString(fileHandle));
         downProbability = StringToDouble(FileReadString(fileHandle));
      }
      
      FileClose(fileHandle);
      
      return true;
   }
   
   //--- Execute Python script (Windows only, optional)
   bool ExecutePythonScript(string scriptName, string arguments = "")
   {
      if(!m_pythonEnabled)
         return false;
      
      // This is a placeholder - actual execution would require shell access
      // In practice, Python would be run externally and communicate via files
      
      Print("PythonBridge: Python execution requested for ", scriptName);
      Print("Note: Run Python script manually or via scheduled task");
      
      return true;
   }
   
   //--- Create signal file for Python monitoring (optional)
   void CreateSignalFile(string signal)
   {
      if(!m_pythonEnabled)
         return;
      
      string filename = "ea_signal.txt";
      int fileHandle = FileOpen(filename, FILE_WRITE|FILE_TXT|FILE_ANSI);
      
      if(fileHandle != INVALID_HANDLE)
      {
         FileWriteString(fileHandle, signal + "\n");
         FileWriteString(fileHandle, TimeToString(TimeCurrent(), TIME_DATE|TIME_MINUTES) + "\n");
         FileClose(fileHandle);
      }
   }
   
   //--- Get Python script execution command
   string GetPythonCommand(string scriptName)
   {
      // Return command that can be used in PowerShell or CMD
      string pythonExe = "python";  // Or full path to python.exe
      string scriptPath = m_pythonScriptPath + scriptName;
      
      return pythonExe + " \"" + scriptPath + "\"";
   }
   
   //--- Log Python integration status
   void LogStatus()
   {
      Print("===== Python Integration Status =====");
      Print("Enabled: ", m_pythonEnabled ? "Yes" : "No");
      Print("Script Path: ", m_pythonScriptPath);
      Print("Data Exchange: ", m_dataExchangePath);
      Print("Note: EA works standalone without Python");
      Print("======================================");
   }
};

//+------------------------------------------------------------------+
//| Python Helper Functions (Standalone - No Python Required)        |
//+------------------------------------------------------------------+

// These functions provide quantum-inspired calculations without Python
namespace QuantumHelpers
{
   //--- Simulate quantum phase estimation locally
   double SimulateQPE(const string binarySequence, int horizon = 10)
   {
      int length = StringLen(binarySequence);
      if(length == 0) return 0.5;
      
      // Count patterns
      int ones = 0;
      for(int i = 0; i < length; i++)
      {
         if(StringGetCharacter(binarySequence, i) == '1')
            ones++;
      }
      
      // Apply quantum-inspired weighting
      double baseProb = (double)ones / length;
      double weight = MathExp(-0.01 * horizon);
      
      return baseProb * weight + 0.5 * (1 - weight);
   }
   
   //--- Calculate quantum confidence without Python
   double CalculateQuantumConfidence(const string binarySequence)
   {
      int length = StringLen(binarySequence);
      if(length < 10) return 0;
      
      // Analyze pattern consistency
      int transitions = 0;
      for(int i = 1; i < length; i++)
      {
         if(StringGetCharacter(binarySequence, i) != 
            StringGetCharacter(binarySequence, i-1))
            transitions++;
      }
      
      // Lower transitions = higher confidence
      double consistency = 1.0 - ((double)transitions / (length - 1));
      
      return consistency * 100.0;
   }
   
   //--- Get quantum state description
   string GetQuantumStateDescription(double upProb, double entropy)
   {
      if(upProb > 0.65 && entropy < 0.4)
         return "Strong Bullish Quantum State";
      else if(upProb < 0.35 && entropy < 0.4)
         return "Strong Bearish Quantum State";
      else if(entropy > 0.7)
         return "High Entropy (Uncertain) State";
      else if(upProb > 0.55)
         return "Moderate Bullish State";
      else if(upProb < 0.45)
         return "Moderate Bearish State";
      else
         return "Neutral/Ranging State";
   }
}

//+------------------------------------------------------------------+