const http = require('http');

function checkServerHealth() {
  const options = {
    hostname: 'localhost',
    port: 5000,
    path: '/api/health',
    method: 'GET',
    timeout: 5000
  };

  const req = http.request(options, (res) => {
    let data = '';
    res.on('data', (chunk) => {
      data += chunk;
    });
    res.on('end', () => {
      try {
        const response = JSON.parse(data);
        if (response.status === 'OK') {
          console.log(`[${new Date().toISOString()}] Server is healthy`);
        } else {
          console.error(`[${new Date().toISOString()}] Server returned unexpected status:`, response);
        }
      } catch (error) {
        console.error(`[${new Date().toISOString()}] Failed to parse health check response:`, error);
      }
    });
  });

  req.on('error', (error) => {
    console.error(`[${new Date().toISOString()}] Server health check failed:`, error.message);
  });

  req.on('timeout', () => {
    console.error(`[${new Date().toISOString()}] Server health check timed out`);
    req.destroy();
  });

  req.end();
}

// Check server health every 30 seconds
setInterval(checkServerHealth, 30000);

// Initial check
checkServerHealth();

console.log('Server monitoring started. Health checks every 30 seconds.');