const http = require('http');
const app = require('./app');

const port = parseInt(process.env.PORT, 10) || 3000;
const server = http.createServer(app);

server.listen(port, () => {
  console.log(`Server listening on port ${port} (env=${process.env.NODE_ENV || 'production'})`);
  if (process.env.NODE_ENV === 'development' && process.env.DEV_SKIP_AUTH === 'true') {
    console.log('[START-NOAUTH] DEV_SKIP_AUTH=true — authentication is bypassed');
  }
});

function shutdown(signal) {
  console.log(`Received ${signal}, shutting down...`);
  server.close(() => {
    console.log('Server closed.');
    process.exit(0);
  });
  // force exit after 10s
  setTimeout(() => {
    console.error('Forcing shutdown.');
    process.exit(1);
  }, 10000).unref();
}

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

// export for tests / scripts
module.exports = server;