const http = require('node:http');

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

const server = http.createServer((request, response) => {
  response.writeHead(200, { 'content-type': 'text/plain' });
  response.end('Inventory API is running\n');
});

function shutdown(signal) {
  console.log(`Received ${signal}, closing HTTP server`);
  server.close(() => process.exit(0));
  setTimeout(() => process.exit(1), 8000).unref();
}

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

server.listen(port, host, () => {
  console.log(`Inventory API listening on http://${host}:${port}/`);
});