// Read-only production drift probe. No authentication, writes, payments or
// provider calls are performed. It intentionally fails when a required
// deployment contract is missing.
import { mkdir, writeFile } from 'node:fs/promises';

const base = String(process.argv[2] || process.env.IHALEIST_LIVE_URL || 'https://ihaleist.com').replace(/\/$/, '');
const evidencePath = process.env.IHALEIST_LIVE_EVIDENCE_PATH || 'docs/quality/evidence/qa-live-runtime.json';
const timeoutMs = 15_000;
const requiredHeaders = [
  'x-content-type-options', 'referrer-policy', 'permissions-policy',
  'x-frame-options', 'content-security-policy',
  ...(base.startsWith('https://') ? ['strict-transport-security'] : []),
];
const observedHeaders = [...new Set([...requiredHeaders, 'strict-transport-security'])];
const checks = {};

async function probe(path, successField = null) {
  const controller = new AbortController();
  const timer = setTimeout(() => controller.abort(), timeoutMs);
  try {
    const response = await fetch(base + path, { signal: controller.signal, redirect: 'manual' });
    const result = {
      status: response.status,
      contentType: response.headers.get('content-type'),
      headers: Object.fromEntries(observedHeaders.map(name => [name, response.headers.get(name)])),
    };
    if (successField) {
      const raw = await response.text();
      try { result.json = JSON.parse(raw); } catch { result.jsonError = 'JSON yanıtı ayrıştırılamadı.'; }
      result.apiSuccess = result.json?.[successField] === true;
    }
    return result;
  } catch (error) {
    return { error: error.name === 'AbortError' ? `timeout after ${timeoutMs}ms` : error.message };
  } finally {
    clearTimeout(timer);
  }
}

checks.home = await probe('/');
checks.health = await probe('/api/health', 'ok');
// /api/health and /api/ready use the same { ok: true } probe contract. The
// readiness payload also includes a separate `ready` diagnostic field.
checks.ready = await probe('/api/ready', 'ok');
// The EKAP document fallback depends on the bundled browser being available;
// check its public capability endpoint without opening a document or mutating
// any account data.
checks.documents = await probe('/api/documents/config', 'tarayiciVar');
const missingHeaders = requiredHeaders.filter(name => [checks.home, checks.health, checks.ready, checks.documents].some(check => check?.headers?.[name] == null));
const report = {
  base,
  readOnly: true,
  checkedAt: new Date().toISOString(),
  checks,
  pass: checks.home?.status === 200 && checks.health?.status === 200 && checks.health.apiSuccess === true && checks.ready?.status === 200 && checks.ready.apiSuccess === true && checks.documents?.status === 200 && checks.documents.apiSuccess === true && missingHeaders.length === 0,
  missingHeaders,
};

await mkdir('docs/quality/evidence', { recursive: true });
await writeFile(evidencePath, JSON.stringify(report, null, 2) + '\n');
console.log(JSON.stringify(report));
if (!report.pass) process.exitCode = 1;