1
// Chaos helpers
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function shouldChaos() {
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  return Math.random() < 0.12; // 12% chaos
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}
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function getChaoticResponse() {
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  const chaos = Math.random();
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  if (chaos < 0.3) {
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    // Rate limited
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    return new Response('Rate limited', { status: 429 });
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  } else if (chaos < 0.5) {
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    // Service unavailable
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    return new Response('Service temporarily unavailable', { status: 503 });
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  } else if (chaos < 0.7) {
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    // Malformed JSON
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    return new Response('{"broken": json}', {
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      status: 200,
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      headers: { 'Content-Type': 'application/json' },
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    });
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  } else if (chaos < 0.9) {
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    // Timeout simulation (just return very slow)
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    return new Response('Request timeout', { status: 408 });
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  } else {
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    // Completely wrong content type
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    return new Response('<html>This is not JSON</html>', {
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      status: 200,
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      headers: { 'Content-Type': 'text/html' },
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    });
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  }
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}
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export default {
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  async fetch(request, env, ctx) {
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    // Random chaos injection
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    if (shouldChaos()) {
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      return getChaoticResponse();
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    }
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    const { pathname } = new URL(request.url);
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    const method = request.method;
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    if (method === 'GET' && pathname.startsWith('/values/')) {
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      // GET /values/{key}
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      const key = pathname.slice(8);
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      if (key === 'test-key') {
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        return new Response('test-value', {
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          headers: { 'Content-Type': 'text/plain' },
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        });
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      }
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      return new Response(null, { status: 404 });
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    } else if (method === 'PUT' && pathname.startsWith('/values/')) {
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      // PUT /values/{key}
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      return new Response(null, { status: 200 });
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    } else if (method === 'GET' && pathname === '/keys') {
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      // LIST operation
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      return new Response(
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        JSON.stringify({
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          keys: [{ name: 'test-key' }],
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          list_complete: true,
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        }),
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        {
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          headers: { 'Content-Type': 'application/json' },
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        }
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      );
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    }
66
 
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    return new Response('KV mock ready', { status: 200 });
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  },
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};