import http from 'http';

const port = Number(process.env.PIKIT_MOCK_API_PORT || 4000);

const updatesConfig = {
  enabled: false,
  scope: 'security',
  cleanup: false,
  bandwidth_limit_kbps: null,
  auto_reboot: false,
  reboot_time: '04:30',
  reboot_with_users: false,
  update_time: '04:00',
  upgrade_time: '04:30',
  state: { enabled: false },
};

const routes = {
  '/health': { ok: true },
  '/api/status': {
    hostname: 'pikit-test',
    uptime_seconds: 0,
    load: [0, 0, 0],
    memory_mb: { total: 1024, free: 1024 },
    disk_mb: { total: 1024, free: 1024 },
    cpu_temp_c: 35.0,
    lan_ip: '127.0.0.1',
    os_version: 'DietPi',
    auto_updates_enabled: false,
    auto_updates: { enabled: false },
    updates_config: updatesConfig,
    reboot_required: false,
    ready: true,
    services: [],
  },
  '/api/firstboot': {
    state: 'done',
    steps: [],
    current_step: null,
    log_tail: '',
    error_present: false,
    error_path: '/api/firstboot/error',
    ca_hash: null,
    ca_url: '/assets/pikit-ca.crt',
  },
  '/api/firstboot/error': { present: false, text: '' },
  '/api/services': { services: [] },
  '/api/updates/config': updatesConfig,
  '/api/updates/auto': { enabled: false, details: { enabled: false } },
  '/api/update/status': {
    status: 'up_to_date',
    current_version: '0.0.0',
    latest_version: '0.0.0',
    message: 'Mocked',
    channel: 'stable',
    in_progress: false,
  },
  '/api/update/releases': { releases: [] },
  '/api/diag/log': { entries: [], state: { enabled: false, level: 'normal' } },
};

const server = http.createServer((req, res) => {
  const url = (req.url || '/').split('?')[0];
  const body = routes[url] || (url.startsWith('/api/') ? {} : null);

  if (body === null) {
    res.writeHead(404, { 'Content-Type': 'application/json' });
    res.end(JSON.stringify({ error: 'not found' }));
    return;
  }

  res.writeHead(200, { 'Content-Type': 'application/json' });
  res.end(JSON.stringify(body));
});

server.listen(port, '127.0.0.1', () => {
  console.log(`[mock-api] listening on 127.0.0.1:${port}`);
});

const shutdown = () => {
  server.close(() => process.exit(0));
};

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