Please help with MQL5 code for EA which opens a trade automatically once an existing trade is closed.

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Please help with MQL5 code for EA which opens a trade automatically once an existing trade is closed.
 
If you want some code, search the CodeBase. Otherwise, if you want a proper answer, tell us what you have done so far and we can guide you through the correct path.
  
input double lotSize = 0.01;                // Lot size for trades
input int slippage = 3;                    // Slippage allowance
input double stopLoss = 50.0;              // Stop loss in points
input double takeProfit = 100.0;           // Take profit in points
input bool openBuyTrade = true;            // Open buy trade if true, else sell

ulong lastTradeTicket = 0;                 // Ticket of the last trade

//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit()
  {
    // Immediately open an initial trade when the EA starts
    OpenTrade(openBuyTrade);
    return(INIT_SUCCEEDED);
  }

//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
  {
    // Check if the last trade is still open
    if(PositionSelectByTicket(lastTradeTicket))
      {
        // Last trade is still open, no action needed
        return;
      }
    else
      {
        // If the last trade is not open (closed), open a new trade
        OpenTrade(openBuyTrade);
      }
  }

//+------------------------------------------------------------------+
//| Function to open a trade                                         |
//+------------------------------------------------------------------+
void OpenTrade(bool buy)
  {
    double price = buy ? SymbolInfoDouble(_Symbol, SYMBOL_ASK) : SymbolInfoDouble(_Symbol, SYMBOL_BID);
    double sl = buy ? price - stopLoss * _Point : price + stopLoss * _Point;
    double tp = buy ? price + takeProfit * _Point : price - takeProfit * _Point;

    MqlTradeRequest request;
    MqlTradeResult result;

    ZeroMemory(request);
    request.action = TRADE_ACTION_DEAL;
    request.symbol = _Symbol;
    request.volume = lotSize;
    request.type = buy ? ORDER_TYPE_BUY : ORDER_TYPE_SELL;
    request.price = price;
    request.sl = sl;
    request.tp = tp;
    request.deviation = slippage;
    request.magic = 0;  // Adjust if using multiple EAs
    request.comment = "TradeOpenerEA Trade";

    if(!OrderSend(request, result))
      {
        Print("Trade Error: ", GetLastError());
      }
    else
      {
        lastTradeTicket = result.deal;
      }
  }
//+------------------------------------------------------------------+
 
Emanuel Cavalcante Amorim Filho #:
If you want some code, search the CodeBase. Otherwise, if you want a proper answer, tell us what you have done so far and we can guide you through the correct path.

I'm working with this code but it's not running in the chart

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