const http = require('http');

const PORT = process.env.PORT || 3000;

const server = http.createServer((req, res) => {
  const url = req.url;

  if (url === '/health' || url === '/health/') {
    res.writeHead(200, { 'Content-Type': 'application/json' });
    res.end(JSON.stringify({
      status: 'healthy',
      timestamp: new Date().toISOString(),
      service: 'nodejs-backend-test'
    }));
    return;
  }

  if (url === '/' || url === '/api') {
    res.writeHead(200, { 'Content-Type': 'application/json' });
    res.end(JSON.stringify({
      message: 'Hello from Node.js backend!',
      timestamp: new Date().toISOString(),
      environment: {
        port: PORT,
        nodeVersion: process.version
      }
    }));
    return;
  }

  res.writeHead(404, { 'Content-Type': 'application/json' });
  res.end(JSON.stringify({ error: 'Not found' }));
});

server.listen(PORT, () => {
  console.log(`Node.js backend listening on port ${PORT}`);
});