//+------------------------------------------------------------------+
//|                                           AxoraTradingSystemEA.mq4 |
//|                                                 Axora Trading System |
//|                                     https://github.com/axora-trading |
//+------------------------------------------------------------------+
#property copyright "Axora Trading System"
#property link      "https://github.com/axora-trading"
#property version   "1.10"
#property strict

// EA Configuration
extern string SecretCode = "";              // Secret code from backend
extern string BackendURL = "http://localhost:3000";  // Backend URL
extern int SyncInterval = 30;               // Sync interval in seconds (changed from 60 to 30)
extern int SignalCheckInterval = 30;        // Signal check interval in seconds
extern bool EnableAutoTrading = true;       // Enable auto trading
extern bool EnableSignalTrading = true;     // Enable signal-based trading
extern double DefaultLotSize = 0.1;         // Default lot size
extern int MagicNumber = 12345;             // Magic number for EA trades
extern int MaxSlippage = 3;                 // Max slippage in points
extern bool EnableTradeLogging = true;      // Enable detailed trade logging
extern int MaxRetries = 3;                  // Max retries for API calls
extern bool ShowInfoPanel = true;           // Show information panel on chart
extern int InfoPanelX = 10;                 // Info panel X position
extern int InfoPanelY = 30;                 // Info panel Y position

// Global variables
datetime lastSyncTime = 0;
datetime lastSignalCheckTime = 0;
datetime lastInfoUpdate = 0;
bool isConnected = false;
bool isInitialized = false;
string accountNumber = "";
int totalApiCalls = 0;
int failedApiCalls = 0;
string lastSyncStatus = "Not Started";
string connectionStatus = "Disconnected";
string eaIntegrationStatus = "Initializing";

// Account Information
string brokerName = "";
string serverName = "";
string accountCurrency = "";
double currentBalance = 0.0;
double currentEquity = 0.0;
double currentMargin = 0.0;
double freeMargin = 0.0;
int leverage = 0;

//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit()
{
   Print("=== Axora Trading System EA Starting ===");
   Print("Version: 1.10");
   
   // Validate configuration
   if(SecretCode == "")
   {
      Print("ERROR: Secret code is required! Please configure the SecretCode parameter.");
      Alert("EA Configuration Error: Secret code is required!");
      eaIntegrationStatus = "Error: No Secret Code";
      return INIT_PARAMETERS_INCORRECT;
   }
   
   if(BackendURL == "")
   {
      Print("ERROR: Backend URL is required! Please configure the BackendURL parameter.");
      Alert("EA Configuration Error: Backend URL is required!");
      eaIntegrationStatus = "Error: No Backend URL";
      return INIT_PARAMETERS_INCORRECT;
   }
   
   // Initialize account information
   UpdateAccountInfo();
   
   Print("=== Account Information ===");
   Print("- Account Number: ", accountNumber);
   Print("- Broker: ", brokerName);
   Print("- Server: ", serverName);
   Print("- Currency: ", accountCurrency);
   Print("- Leverage: 1:", leverage);
   Print("- Balance: ", DoubleToString(currentBalance, 2), " ", accountCurrency);
   Print("- Equity: ", DoubleToString(currentEquity, 2), " ", accountCurrency);
   Print("- Margin: ", DoubleToString(currentMargin, 2), " ", accountCurrency);
   Print("- Free Margin: ", DoubleToString(freeMargin, 2), " ", accountCurrency);
   
   Print("=== EA Configuration ===");
   Print("- Secret Code: ", StringSubstr(SecretCode, 0, 4), "****");
   Print("- Backend URL: ", BackendURL);
   Print("- Sync Interval: ", SyncInterval, " seconds");
   Print("- Signal Check Interval: ", SignalCheckInterval, " seconds");
   Print("- Auto Trading: ", EnableAutoTrading ? "Enabled" : "Disabled");
   Print("- Signal Trading: ", EnableSignalTrading ? "Enabled" : "Disabled");
   Print("- Default Lot Size: ", DefaultLotSize);
   Print("- Magic Number: ", MagicNumber);
   Print("- Info Panel: ", ShowInfoPanel ? "Enabled" : "Disabled");
   
   // Check if auto trading is enabled
   if(!IsTradeAllowed())
   {
      Print("WARNING: Auto trading is not enabled in MetaTrader 4!");
      Alert("Please enable Auto Trading in MetaTrader 4 for the EA to work properly.");
      eaIntegrationStatus = "Warning: Auto Trading Disabled";
   }
   else
   {
      eaIntegrationStatus = "Connecting...";
   }
   
   // Initialize connection
   if(InitializeConnection())
   {
      Print("✅ EA initialized successfully and connected to backend");
      isInitialized = true;
      eaIntegrationStatus = "Connected & Active";
      connectionStatus = "Connected";
   }
   else
   {
      Print("⚠️ EA initialized but backend connection failed - will retry");
      eaIntegrationStatus = "Connection Failed - Retrying";
      connectionStatus = "Connection Failed";
   }
   
   // Create info panel if enabled
   if(ShowInfoPanel)
   {
      CreateInfoPanel();
   }
   
   return INIT_SUCCEEDED;
}

//+------------------------------------------------------------------+
//| Expert deinitialization function                                 |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
{
   string reasonText = "";
   switch(reason)
   {
      case REASON_PROGRAM: reasonText = "EA was stopped manually"; break;
      case REASON_REMOVE: reasonText = "EA was removed from chart"; break;
      case REASON_RECOMPILE: reasonText = "EA was recompiled"; break;
      case REASON_CHARTCHANGE: reasonText = "Symbol or timeframe changed"; break;
      case REASON_CHARTCLOSE: reasonText = "Chart was closed"; break;
      case REASON_PARAMETERS: reasonText = "EA parameters changed"; break;
      case REASON_ACCOUNT: reasonText = "Account changed"; break;
      default: reasonText = "Unknown reason"; break;
   }
   
   Print("=== Axora Trading System EA Stopping ===");
   Print("Reason: ", reasonText);
   Print("=== Session Statistics ===");
   Print("Total API Calls: ", totalApiCalls);
   Print("Failed API Calls: ", failedApiCalls);
   Print("Success Rate: ", totalApiCalls > 0 ? DoubleToString(100.0 - (failedApiCalls * 100.0 / totalApiCalls), 1) : "0.0", "%");
   Print("Final Integration Status: ", eaIntegrationStatus);
   
   // Clean up info panel
   if(ShowInfoPanel)
   {
      RemoveInfoPanel();
   }
}

//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
{
   // Update account information every tick
   UpdateAccountInfo();
   
   if(!isInitialized)
   {
      // Try to initialize connection every minute
      if(TimeCurrent() - lastSyncTime >= 60)
      {
         eaIntegrationStatus = "Reconnecting...";
         if(InitializeConnection())
         {
            isInitialized = true;
            eaIntegrationStatus = "Connected & Active";
            connectionStatus = "Connected";
         }
         else
         {
            eaIntegrationStatus = "Connection Failed - Retrying";
            connectionStatus = "Connection Failed";
         }
         lastSyncTime = TimeCurrent();
      }
      
      // Update info panel even when not connected
      if(ShowInfoPanel && TimeCurrent() - lastInfoUpdate >= 1)
      {
         UpdateInfoPanel();
         lastInfoUpdate = TimeCurrent();
      }
      return;
   }
   
   // Check if it's time to sync account data
   if(TimeCurrent() - lastSyncTime >= SyncInterval)
   {
      lastSyncStatus = "Syncing...";
      SyncAccountData();
      lastSyncTime = TimeCurrent();
   }
   
   // Check for new signals if signal trading is enabled
   if(EnableSignalTrading && TimeCurrent() - lastSignalCheckTime >= SignalCheckInterval)
   {
      CheckForNewSignals();
      lastSignalCheckTime = TimeCurrent();
   }
   
   // Update info panel every second
   if(ShowInfoPanel && TimeCurrent() - lastInfoUpdate >= 1)
   {
      UpdateInfoPanel();
      lastInfoUpdate = TimeCurrent();
   }
}

//+------------------------------------------------------------------+
//| Update Account Information                                       |
//+------------------------------------------------------------------+
void UpdateAccountInfo()
{
   accountNumber = IntegerToString(AccountNumber());
   brokerName = AccountCompany();
   serverName = AccountServer();
   accountCurrency = AccountCurrency();
   currentBalance = AccountBalance();
   currentEquity = AccountEquity();
   currentMargin = AccountMargin();
   freeMargin = AccountFreeMargin();
   leverage = AccountLeverage();

   // Log account information when connected
   if(isConnected) 
   {
      Print("=== Account Information Update ===");
      Print("Broker: ", brokerName);
      Print("Server: ", serverName);
      Print("Account: ", accountNumber);
      Print("Currency: ", accountCurrency);
      Print("Balance: ", DoubleToString(currentBalance, 2));
      Print("Equity: ", DoubleToString(currentEquity, 2));
      Print("Margin: ", DoubleToString(currentMargin, 2));
      Print("Free Margin: ", DoubleToString(freeMargin, 2));
      Print("Leverage: 1:", leverage);
   }
}

//+------------------------------------------------------------------+
//| Create Information Panel                                         |
//+------------------------------------------------------------------+
void CreateInfoPanel()
{
   RemoveInfoPanel(); // Remove existing panel first
   
   // Create background rectangle with larger size
   ObjectCreate("EA_InfoPanel_BG", OBJ_RECTANGLE_LABEL, 0, 0, 0);
   ObjectSet("EA_InfoPanel_BG", OBJPROP_CORNER, CORNER_LEFT_UPPER);
   ObjectSet("EA_InfoPanel_BG", OBJPROP_XDISTANCE, InfoPanelX);
   ObjectSet("EA_InfoPanel_BG", OBJPROP_YDISTANCE, InfoPanelY);
   ObjectSet("EA_InfoPanel_BG", OBJPROP_XSIZE, 300);  // Increased width
   ObjectSet("EA_InfoPanel_BG", OBJPROP_YSIZE, 250);  // Increased height
   ObjectSet("EA_InfoPanel_BG", OBJPROP_BGCOLOR, C'20,20,30');
   ObjectSet("EA_InfoPanel_BG", OBJPROP_BORDER_TYPE, BORDER_FLAT);
   ObjectSet("EA_InfoPanel_BG", OBJPROP_COLOR, clrWhite);
   ObjectSet("EA_InfoPanel_BG", OBJPROP_WIDTH, 1);
   
   // Create labels with more information
   string labels[] = {
      "EA_Info_Title",
      "EA_Info_Connection",
      "EA_Info_Integration",
      "EA_Info_Separator1",
      "EA_Info_Broker",
      "EA_Info_Server",
      "EA_Info_Account",
      "EA_Info_Currency",
      "EA_Info_Separator2",
      "EA_Info_Balance",
      "EA_Info_Equity",
      "EA_Info_Margin",
      "EA_Info_FreeMargin",
      "EA_Info_Leverage",
      "EA_Info_Separator3",
      "EA_Info_LastSync"
   };
   
   for(int i = 0; i < ArraySize(labels); i++)
   {
      ObjectCreate(labels[i], OBJ_LABEL, 0, 0, 0);
      ObjectSet(labels[i], OBJPROP_CORNER, CORNER_LEFT_UPPER);
      ObjectSet(labels[i], OBJPROP_XDISTANCE, InfoPanelX + 10);
      ObjectSet(labels[i], OBJPROP_YDISTANCE, InfoPanelY + 10 + (i * 15));  // Adjusted spacing
      ObjectSet(labels[i], OBJPROP_COLOR, clrWhite);
      ObjectSet(labels[i], OBJPROP_FONTSIZE, 8);
   }
}

//+------------------------------------------------------------------+
//| Update Information Panel                                         |
//+------------------------------------------------------------------+
void UpdateInfoPanel()
{
   if(!ShowInfoPanel) return;
   
   color textColor = isConnected ? clrWhite : clrGray;
   color valueColor = isConnected ? clrLightGreen : clrGray;
   
   // Update labels with current information
   ObjectSetText("EA_Info_Title", "=== Axora Trading EA v1.10 ===", 9, "Arial Bold", clrYellow);
   
   // Connection Status
   color connectionColor = isConnected ? clrLimeGreen : clrRed;
   ObjectSetText("EA_Info_Connection", "Connection: " + connectionStatus, 8, "Arial", connectionColor);
   
   // Integration Status
   color integrationColor = clrWhite;
   if(StringFind(eaIntegrationStatus, "Connected") >= 0) integrationColor = clrLimeGreen;
   else if(StringFind(eaIntegrationStatus, "Error") >= 0) integrationColor = clrRed;
   else if(StringFind(eaIntegrationStatus, "Warning") >= 0) integrationColor = clrOrange;
   ObjectSetText("EA_Info_Integration", "Integration: " + eaIntegrationStatus, 8, "Arial", integrationColor);
   
   // Separator
   ObjectSetText("EA_Info_Separator1", "------------------------", 8, "Arial", clrGray);
   
   // Account Information
   ObjectSetText("EA_Info_Broker", "Broker: " + brokerName, 8, "Arial", textColor);
   ObjectSetText("EA_Info_Server", "Server: " + serverName, 8, "Arial", textColor);
   ObjectSetText("EA_Info_Account", "Account: " + accountNumber, 8, "Arial", textColor);
   ObjectSetText("EA_Info_Currency", "Currency: " + accountCurrency, 8, "Arial", textColor);
   
   // Separator
   ObjectSetText("EA_Info_Separator2", "------------------------", 8, "Arial", clrGray);
   
   // Financial Information
   ObjectSetText("EA_Info_Balance", "Balance: " + DoubleToString(currentBalance, 2) + " " + accountCurrency, 8, "Arial", valueColor);
   ObjectSetText("EA_Info_Equity", "Equity: " + DoubleToString(currentEquity, 2) + " " + accountCurrency, 8, "Arial", valueColor);
   ObjectSetText("EA_Info_Margin", "Margin: " + DoubleToString(currentMargin, 2) + " " + accountCurrency, 8, "Arial", valueColor);
   ObjectSetText("EA_Info_FreeMargin", "Free Margin: " + DoubleToString(freeMargin, 2) + " " + accountCurrency, 8, "Arial", valueColor);
   ObjectSetText("EA_Info_Leverage", "Leverage: 1:" + IntegerToString(leverage), 8, "Arial", valueColor);
   
   // Separator
   ObjectSetText("EA_Info_Separator3", "------------------------", 8, "Arial", clrGray);
   
   // Sync Status
   ObjectSetText("EA_Info_LastSync", "Last Sync: " + lastSyncStatus + " | " + TimeToStr(lastSyncTime, TIME_SECONDS), 8, "Arial", clrLightGray);
}

//+------------------------------------------------------------------+
//| Remove Information Panel                                         |
//+------------------------------------------------------------------+
void RemoveInfoPanel()
{
   string objects[] = {
      "EA_InfoPanel_BG",
      "EA_Info_Title",
      "EA_Info_Connection",
      "EA_Info_Integration",
      "EA_Info_Separator1",
      "EA_Info_Broker",
      "EA_Info_Server",
      "EA_Info_Account",
      "EA_Info_Currency",
      "EA_Info_Separator2",
      "EA_Info_Balance",
      "EA_Info_Equity",
      "EA_Info_Margin",
      "EA_Info_FreeMargin",
      "EA_Info_Leverage",
      "EA_Info_Separator3",
      "EA_Info_LastSync"
   };
   
   for(int i = 0; i < ArraySize(objects); i++)
   {
      ObjectDelete(objects[i]);
   }
}

//+------------------------------------------------------------------+
//| Send Web Request to Backend                                      |
//+------------------------------------------------------------------+
string SendWebRequest(string endpoint, string postData, string method = "POST")
{
   string headers = "Content-Type: application/json\r\nSecret-Code: " + SecretCode;
   char post[], result[];
   int res;
   string url = StringConcatenate(BackendURL, "/api/metatrader4/", endpoint);
   
   StringToCharArray(postData, post, 0, StringLen(postData));
   
   ResetLastError();
   res = WebRequest(method, url, headers, 5000, post, result);
   
   if(res == -1)
   {
      int errorCode = GetLastError();
      Print("Web Request Failed - Error: ", errorCode);
      Print("Make sure URL '", url, "' is added to the list of allowed URLs");
      Print("Terminal -> Tools -> Options -> Expert Advisors -> Add the URL");
      return "";
   }
   
   string resultStr = CharArrayToString(result);
   return resultStr;
}

//+------------------------------------------------------------------+
//| Initialize Connection with Backend                               |
//+------------------------------------------------------------------+
bool InitializeConnection()
{
   string postData = StringConcatenate("{",
      "\"account_number\":\"", accountNumber, "\",",
      "\"broker\":\"", brokerName, "\",",
      "\"server\":\"", serverName, "\",",
      "\"currency\":\"", accountCurrency, "\",",
      "\"balance\":", DoubleToString(currentBalance, 2), ",",
      "\"equity\":", DoubleToString(currentEquity, 2), ",",
      "\"leverage\":", IntegerToString(leverage),
      "}");
   
   string response = SendWebRequest("connect", postData);
   if(response != "")
   {
      isConnected = true;
      return true;
   }
   return false;
}

//+------------------------------------------------------------------+
//| Sync Account Data with Backend                                  |
//+------------------------------------------------------------------+
void SyncAccountData()
{
   string postData = StringConcatenate("{",
      "\"account_number\":\"", accountNumber, "\",",
      "\"balance\":", DoubleToString(currentBalance, 2), ",",
      "\"equity\":", DoubleToString(currentEquity, 2), ",",
      "\"margin\":", DoubleToString(currentMargin, 2), ",",
      "\"free_margin\":", DoubleToString(freeMargin, 2), ",",
      "\"positions\":", GetOpenPositionsJson(), ",",
      "\"orders\":", GetPendingOrdersJson(),
      "}");
   
   string response = SendWebRequest("heartbeat", postData);
   if(response != "")
   {
      lastSyncStatus = "Success";
   }
   else
   {
      lastSyncStatus = "Failed";
   }
}

//+------------------------------------------------------------------+
//| Check for New Trading Signals                                    |
//+------------------------------------------------------------------+
void CheckForNewSignals()
{
   if(!EnableSignalTrading) return;
   
   string postData = StringConcatenate("{",
      "\"account_number\":\"", accountNumber, "\"",
      "}");
   
   string response = SendWebRequest("signals", postData);
   if(response != "")
   {
      ProcessSignalResponse(response);
   }
}

//+------------------------------------------------------------------+
//| Process Signal Response from Backend                            |
//+------------------------------------------------------------------+
void ProcessSignalResponse(string response)
{
   // Parse JSON response and execute trades
   if(StringFind(response, "\"action\":\"OPEN\"") >= 0)
   {
      // Extract signal details and open position
      // Implementation depends on your JSON structure
      double lots = DefaultLotSize;  // Extract from response
      int cmd = OP_BUY;  // Extract from response
      double price = MarketInfo(Symbol(), MODE_ASK);
      double sl = 0;  // Extract from response
      double tp = 0;  // Extract from response
      
      int ticket = OrderSend(Symbol(), cmd, lots, price, MaxSlippage, sl, tp, 
         "Signal Trade", MagicNumber, 0, clrGreen);
      
      if(ticket > 0)
      {
         // Report trade execution back to backend
         ReportTradeExecution(ticket, "OPENED", "Signal trade executed successfully");
      }
      else
      {
         ReportTradeExecution(0, "FAILED", "Failed to execute signal trade: " + GetLastError());
      }
   }
}

//+------------------------------------------------------------------+
//| Report Trade Execution Result                                    |
//+------------------------------------------------------------------+
void ReportTradeExecution(int ticket, string status, string message)
{
   string postData = StringConcatenate("{",
      "\"account_number\":\"", accountNumber, "\",",
      "\"ticket\":", IntegerToString(ticket), ",",
      "\"status\":\"", status, "\",",
      "\"message\":\"", message, "\"",
      "}");
   
   SendWebRequest("trade-result", postData);
}

//+------------------------------------------------------------------+
//| Get Open Positions as JSON                                      |
//+------------------------------------------------------------------+
string GetOpenPositionsJson()
{
   string positions = "[";
   for(int i = 0; i < OrdersTotal(); i++)
   {
      if(OrderSelect(i, SELECT_BY_POS, MODE_TRADES))
      {
         if(OrderType() <= OP_SELL)  // Only open positions
         {
            if(StringLen(positions) > 1) positions += ",";
            positions += StringConcatenate("{",
               "\"ticket\":", IntegerToString(OrderTicket()), ",",
               "\"symbol\":\"", OrderSymbol(), "\",",
               "\"type\":", IntegerToString(OrderType()), ",",
               "\"lots\":", DoubleToString(OrderLots(), 2), ",",
               "\"open_price\":", DoubleToString(OrderOpenPrice(), Digits), ",",
               "\"sl\":", DoubleToString(OrderStopLoss(), Digits), ",",
               "\"tp\":", DoubleToString(OrderTakeProfit(), Digits), ",",
               "\"profit\":", DoubleToString(OrderProfit(), 2), ",",
               "\"magic\":", IntegerToString(OrderMagicNumber()),
               "}");
         }
      }
   }
   positions += "]";
   return positions;
}

//+------------------------------------------------------------------+
//| Get Pending Orders as JSON                                      |
//+------------------------------------------------------------------+
string GetPendingOrdersJson()
{
   string orders = "[";
   for(int i = 0; i < OrdersTotal(); i++)
   {
      if(OrderSelect(i, SELECT_BY_POS, MODE_TRADES))
      {
         if(OrderType() > OP_SELL)  // Only pending orders
         {
            if(StringLen(orders) > 1) orders += ",";
            orders += StringConcatenate("{",
               "\"ticket\":", IntegerToString(OrderTicket()), ",",
               "\"symbol\":\"", OrderSymbol(), "\",",
               "\"type\":", IntegerToString(OrderType()), ",",
               "\"lots\":", DoubleToString(OrderLots(), 2), ",",
               "\"open_price\":", DoubleToString(OrderOpenPrice(), Digits), ",",
               "\"sl\":", DoubleToString(OrderStopLoss(), Digits), ",",
               "\"tp\":", DoubleToString(OrderTakeProfit(), Digits), ",",
               "\"magic\":", IntegerToString(OrderMagicNumber()),
               "}");
         }
      }
   }
   orders += "]";
   return orders;
}