const express = require('express');
const app = express();
const PORT = process.env.PORT || 3000;

// Middleware to get client IP
app.get('/', (req, res) => {
  // Get client IP from various possible headers (for proxy support)
  const clientIp = req.headers['x-forwarded-for']?.split(',')[0].trim() ||
                   req.headers['x-real-ip'] ||
                   req.socket.remoteAddress ||
                   req.connection.remoteAddress;
  
  res.send(clientIp);
});

app.listen(PORT, '0.0.0.0', () => {
  console.log(`IP Pinger service running on port ${PORT}`);
  console.log(`Visit http://localhost:${PORT} to see your IP`);
});