import { createServer } from 'node:http';
import { guide } from './schedule.ts';

// Development-only service: loopback binding, no media, accounts or Emby credentials.
const server = createServer((req, res) => {
  res.setHeader('Content-Type', 'application/json; charset=utf-8');
  res.setHeader('Cache-Control', 'no-store');
  res.setHeader('X-Content-Type-Options', 'nosniff');
  if (req.method !== 'GET') { res.writeHead(405, { Allow: 'GET' }); res.end('{"error":"GET required"}'); return; }
  const url = new URL(req.url ?? '/', 'http://127.0.0.1');
  if (url.pathname === '/health') { res.end('{"status":"ok","mode":"fictional-demo"}'); return; }
  if (url.pathname !== '/guide') { res.writeHead(404); res.end('{"error":"Not found"}'); return; }
  try {
    const now = url.searchParams.has('at') ? Number(url.searchParams.get('at')) : Date.now();
    const count = url.searchParams.has('count') ? Number(url.searchParams.get('count')) : 6;
    res.end(JSON.stringify({ generatedAt: Date.now(), channels: guide(now, count) }));
  } catch { res.writeHead(400); res.end('{"error":"Use a valid epoch timestamp and count from 1 to 48"}'); }
});
server.listen(4317, '127.0.0.1', () => console.log('Orbit demo guide: http://127.0.0.1:4317/guide'));
for (const signal of ['SIGINT', 'SIGTERM'] as const) process.on(signal, () => server.close());