const http = require('http');

const PORT = Number(process.env.CRANK_E2E_STREAM_FIXTURE_PORT || 3310);

function send(response, status, body) {
  const payload = JSON.stringify(body);
  response.writeHead(status, {
    'Content-Type': 'application/json; charset=utf-8',
    'Content-Length': Buffer.byteLength(payload),
    'Cache-Control': 'no-store',
  });
  response.end(payload);
}

const server = http.createServer((request, response) => {
  const url = new URL(request.url, `http://127.0.0.1:${PORT}`);
  if (request.method !== 'GET') {
    send(response, 405, { error: 'method_not_allowed' });
    return;
  }
  if (url.pathname === '/health') {
    send(response, 200, { status: 'ok' });
    return;
  }
  if (url.pathname === '/rates') {
    send(response, 200, {
      amount: 1,
      base: url.searchParams.get('base') || 'USD',
      date: '2026-08-24',
      rates: { EUR: 0.91 },
    });
    return;
  }
  if (url.pathname === '/upstream-error') {
    send(response, 503, { error: 'fixture_upstream_unavailable' });
    return;
  }
  send(response, 404, { error: 'fixture_not_found' });
});

server.listen(PORT, '127.0.0.1', () => {
  console.log(`Playwright HTTP fixture listening on http://127.0.0.1:${PORT}`);
});