/**
 * Demo-Modul: Minimaler HTTP-Server, der den Modul-API-Vertrag erfüllt.
 * Läuft als eigener Node-Prozess im Management-Container (Port via ENV PORT).
 */

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

const PORT = Number(process.env.PORT ?? 41001);

/** Manifest des Moduls (identisch zu module.json). */
const MANIFEST = {
  moduleId: 'demo',
  version: '1.0.0',
  status: 'healthy',
};

const server = http.createServer((request, response) => {
  const url = new URL(request.url ?? '/', `http://127.0.0.1:${PORT}`);

  if (url.pathname === '/health') {
    response.writeHead(200, { 'Content-Type': 'application/json' });
    response.end(JSON.stringify({ moduleId: 'demo', version: '1.0.0', status: 'healthy' }));
    return;
  }

  if (url.pathname === '/api/manifest') {
    response.writeHead(200, { 'Content-Type': 'application/json' });
    response.end(JSON.stringify(MANIFEST));
    return;
  }

  if (url.pathname === '/api/me') {
    response.writeHead(200, { 'Content-Type': 'application/json' });
    response.end(
      JSON.stringify({
        user: { id: 'demo', username: 'demo' },
        module: { id: 'demo' },
        permissions: [],
      }),
    );
    return;
  }

  response.writeHead(200, { 'Content-Type': 'text/plain; charset=utf-8' });
  response.end('Demo-Modul läuft');
});

server.listen(PORT, '127.0.0.1', () => {
  console.log(`Demo-Modul läuft auf Port ${PORT}`);
});