import { createServer } from 'node:http';

const host = process.env.HOST || '127.0.0.1';
const port = Number.parseInt(process.env.PORT || '3000', 10);

const server = createServer((request, response) => {
  response.setHeader('Content-Type', 'application/json; charset=utf-8');
  response.setHeader('Cache-Control', 'no-store');
  response.setHeader('X-Content-Type-Options', 'nosniff');

  if (request.method === 'GET' && (request.url === '/healthz' || request.url === '/api/health')) {
    response.writeHead(200);
    response.end(JSON.stringify({ status: 'ok', service: 'lisglosips-api-placeholder' }));
    return;
  }

  response.writeHead(404);
  response.end(JSON.stringify({ status: 'not_found' }));
});

server.listen(port, host);

function shutdown() {
  server.close((error) => process.exit(error ? 1 : 0));
  setTimeout(() => process.exit(1), 10_000).unref();
}

process.on('SIGTERM', shutdown);
process.on('SIGINT', shutdown);