//+------------------------------------------------------------------+
//| ConfigManager.mqh - Unified Configuration Management             |
//+------------------------------------------------------------------+
#ifndef __CONFIGMANAGER_MQH__
#define __CONFIGMANAGER_MQH__
 
 #include "LogMiddleware.mqh"

// Gate configuration structure
struct GateConfig
{
   bool enabled;
   double threshold;
   int cooldown_sec;
   double success_rate_target;
   string name;
   
   GateConfig()
   {
      enabled = true;
      threshold = 0.5;
      cooldown_sec = 0;
      success_rate_target = 0.75;
      name = "";
   }
};

// Insights configuration structure
struct InsightsConfig
{
   bool auto_reload;
   int freshness_minutes;
   int poll_interval_sec;
   int stale_hours;
   int min_source_advance_hours;
   int min_interval_hours;
   int rebuild_timeout_ms;
   
   InsightsConfig()
   {
      auto_reload = true;
      freshness_minutes = 60;
      poll_interval_sec = 30;
      stale_hours = 48;
      min_source_advance_hours = 48;
      min_interval_hours = 24;
      rebuild_timeout_ms = 1800000; // 30 minutes
   }
};

// System configuration structure
struct SystemConfig
{
   bool no_constraints_mode;
   bool verbose_logging;
   string data_path;
   int max_records;
   
   SystemConfig()
   {
      no_constraints_mode = false;
      verbose_logging = false;
      data_path = "DualEA";
      max_records = 10000;
   }
};

// Singleton configuration manager
class CConfigManager
{
private:
   static CConfigManager* instance;
   GateConfig gate_configs[8];
   InsightsConfig insights_config;
   SystemConfig system_config;
   bool initialized;
   
   CConfigManager()
   {
      initialized = false;
      InitializeDefaults();
   }

   int FindGateIndex(const string &gate_name) const
   {
      for(int i = 0; i < 8; i++)
      {
         if(gate_configs[i].name == gate_name)
            return i;
      }
      return -1;
   }
   
   void InitializeDefaults()
   {
      // Initialize gate configurations with defaults
      gate_configs[0].name = "SignalRinse";
      gate_configs[0].threshold = 0.6;
      gate_configs[0].success_rate_target = 0.75;
      
      gate_configs[1].name = "MarketSoap";
      gate_configs[1].threshold = 0.02;
      gate_configs[1].success_rate_target = 0.78;
      
      gate_configs[2].name = "StrategyScrub";
      gate_configs[2].threshold = 0.55;
      gate_configs[2].success_rate_target = 0.82;
      
      gate_configs[3].name = "RiskWash";
      gate_configs[3].threshold = 0.02;
      gate_configs[3].success_rate_target = 0.85;
      
      gate_configs[4].name = "PerformanceWax";
      gate_configs[4].threshold = 0.6;
      gate_configs[4].success_rate_target = 0.79;
      
      gate_configs[5].name = "MLPolish";
      gate_configs[5].threshold = 0.75;
      gate_configs[5].success_rate_target = 0.82;
      
      gate_configs[6].name = "LiveClean";
      gate_configs[6].threshold = 0.001;
      gate_configs[6].success_rate_target = 0.88;
      
      gate_configs[7].name = "FinalVerify";
      gate_configs[7].threshold = 0.0;
      gate_configs[7].success_rate_target = 0.95;
      
      initialized = true;
   }
   
public:
   static CConfigManager* GetInstance()
   {
      if(instance == NULL)
         instance = new CConfigManager();
      return instance;
   }
   
   static void Cleanup()
   {
      if(instance != NULL)
      {
         delete instance;
         instance = NULL;
      }
   }
   
   // Gate configuration methods
   GateConfig GetGateConfig(int gate_index)
   {
      if(gate_index >= 0 && gate_index < 8)
         return gate_configs[gate_index];
      
      GateConfig empty;
      return empty;
   }
   
   GateConfig GetGateConfig(const string& gate_name)
   {
      int index = FindGateIndex(gate_name);
      if(index >= 0)
         return gate_configs[index];

      GateConfig empty;
      return empty;
   }
   
   void SetGateConfig(int gate_index, const GateConfig& config)
   {
      if(gate_index >= 0 && gate_index < 8)
         gate_configs[gate_index] = config;
   }
   
   void SetGateThreshold(int gate_index, double threshold)
   {
      if(gate_index >= 0 && gate_index < 8)
         gate_configs[gate_index].threshold = threshold;
   }
   
   void SetGateEnabled(int gate_index, bool enabled)
   {
      if(gate_index >= 0 && gate_index < 8)
         gate_configs[gate_index].enabled = enabled;
   }
   
   // Insights configuration methods
   InsightsConfig GetInsightsConfig() { return insights_config; }
   void SetInsightsConfig(const InsightsConfig& config) { insights_config = config; }
   
   // System configuration methods
   SystemConfig GetSystemConfig() { return system_config; }
   void SetSystemConfig(const SystemConfig& config) { system_config = config; }
   
   // Convenience methods
   bool IsNoConstraintsMode() { return system_config.no_constraints_mode; }
   void SetNoConstraintsMode(bool enabled) { system_config.no_constraints_mode = enabled; }
   
   bool IsVerboseLogging() { return system_config.verbose_logging; }
   void SetVerboseLogging(bool enabled) { system_config.verbose_logging = enabled; }
   
   string GetDataPath() { return system_config.data_path; }
   void SetDataPath(const string& path) { system_config.data_path = path; }
   
   // Configuration persistence (optional - can be extended)
   void SaveToFile(const string& filename)
  {
     // Save configuration to JSON file
     int h = FileOpen(filename, FILE_WRITE|FILE_TXT|FILE_COMMON);
     if(h == INVALID_HANDLE)
       {
        string err_msg = StringFormat("ConfigManager: Cannot create config file %s, error: %d", filename, GetLastError());
        LOG(err_msg);
        return;
       }
      
      FileWriteString(h, "{\n");
      FileWriteString(h, "  \"gate_configs\": {\n");
      
      for(int i = 0; i < 8; i++)
        {
         GateConfig config = gate_configs[i];
         string line = StringFormat(
            "    \"%s\": { \"enabled\": %s, \"threshold\": %.6f, \"cooldown_sec\": %d, \"success_rate_target\": %.4f }",
            config.name,
            config.enabled ? "true" : "false",
            config.threshold,
            config.cooldown_sec,
            config.success_rate_target
         );
         if(i < 7) line += ",";
         line += "\n";
         FileWriteString(h, line);
        }
      
      FileWriteString(h, "  },\n");

      string system_line = StringFormat(
         "  \"system\": { \"no_constraints_mode\": %s, \"verbose_logging\": %s, \"data_path\": \"%s\", \"max_records\": %d },\n",
         system_config.no_constraints_mode ? "true" : "false",
         system_config.verbose_logging ? "true" : "false",
         system_config.data_path,
         system_config.max_records
      );
      FileWriteString(h, system_line);

      string insights_line = StringFormat(
         "  \"insights\": { \"auto_reload\": %s, \"freshness_minutes\": %d, \"poll_interval_sec\": %d, \"stale_hours\": %d, \"min_source_advance_hours\": %d, \"min_interval_hours\": %d, \"rebuild_timeout_ms\": %d }\n",
         insights_config.auto_reload ? "true" : "false",
         insights_config.freshness_minutes,
         insights_config.poll_interval_sec,
         insights_config.stale_hours,
         insights_config.min_source_advance_hours,
         insights_config.min_interval_hours,
         insights_config.rebuild_timeout_ms
      );
      FileWriteString(h, insights_line);
      FileWriteString(h, "}\n");
      FileClose(h);
      
      string save_msg = StringFormat("Configuration saved to: %s", filename);
      LOG(save_msg);
  }
   
   void LoadFromFile(const string& filename)
  {
     // Load configuration from JSON file
     int h = FileOpen(filename, FILE_READ|FILE_TXT|FILE_COMMON);
     if(h == INVALID_HANDLE)
       {
        h = FileOpen(filename, FILE_READ|FILE_TXT); // Try user files
        if(h == INVALID_HANDLE)
          {
           string open_err = StringFormat("ConfigManager: Cannot open config file %s, error: %d", filename, GetLastError());
           LOG(open_err);
           return;
          }
       }
      
      string line;
      while(!FileIsEnding(h))
        {
         line = FileReadString(h);
         
         // Parse gate config entries
         int name_start = StringFind(line, "\"");
         if(name_start >= 0)
           {
            int name_end = StringFind(line, "\"", name_start + 1);
            if(name_end > name_start)
              {
               string gate_name = StringSubstr(line, name_start + 1, name_end - name_start - 1);
               GateConfig config = GetGateConfig(gate_name);
               
               // Enabled flag
               int enabled_pos = StringFind(line, "\"enabled\":");
               if(enabled_pos >= 0)
                 {
                  string enabled_str = StringSubstr(line, enabled_pos + 10);
                  if(StringFind(enabled_str, "true") >= 0) config.enabled = true;
                  else if(StringFind(enabled_str, "false") >= 0) config.enabled = false;
                 }
               
               // Threshold
               int threshold_pos = StringFind(line, "\"threshold\":");
               if(threshold_pos >= 0)
                 {
                  string threshold_str = StringSubstr(line, threshold_pos + 12);
                  config.threshold = StringToDouble(threshold_str);
                 }
               
               // Cooldown
               int cooldown_pos = StringFind(line, "\"cooldown_sec\":");
               if(cooldown_pos >= 0)
                 {
                  string cooldown_str = StringSubstr(line, cooldown_pos + 15);
                  config.cooldown_sec = (int)StringToInteger(cooldown_str);
                 }
               
               // Success rate target
               int target_pos = StringFind(line, "\"success_rate_target\":");
               if(target_pos >= 0)
                 {
                  string target_str = StringSubstr(line, target_pos + 22);
                  config.success_rate_target = StringToDouble(target_str);
                 }
               
               int gate_index = FindGateIndex(gate_name);
               if(gate_index >= 0)
               {
                  SetGateConfig(gate_index, config);
               }
               else if(gate_name != "")
              {
                 LOG(StringFormat("ConfigManager: Unknown gate name in config file: %s", gate_name));
              }
              }
           }
        }
      
      FileClose(h);
      LOG(StringFormat("Configuration loaded from: %s", filename));
  }
   
   // Debug information
   void PrintConfiguration()
  {
     LOG("=== DualEA Configuration ===");
     LOG(StringFormat("System - No Constraints: %s", system_config.no_constraints_mode ? "true" : "false"));
     LOG(StringFormat("System - Verbose Logging: %s", system_config.verbose_logging ? "true" : "false"));
     LOG(StringFormat("System - Data Path: %s", system_config.data_path));
     
     LOG(StringFormat("Insights - Auto Reload: %s", insights_config.auto_reload ? "true" : "false"));
     LOG(StringFormat("Insights - Freshness Minutes: %d", insights_config.freshness_minutes));
     LOG(StringFormat("Insights - Poll Interval: %d", insights_config.poll_interval_sec));
     
     for(int i = 0; i < 8; i++)
     {
        LOG(StringFormat("Gate %d (%s) - Enabled: %s, Threshold: %.6f", i, gate_configs[i].name, 
              gate_configs[i].enabled ? "true" : "false", gate_configs[i].threshold));
     }
  }
};

// Static instance declaration
static CConfigManager* CConfigManager::instance = NULL;

#endif