const { test } = require('node:test');
const assert = require('node:assert/strict');
const fs = require('fs');
const path = require('path');
const {
  newestChangelogDate,
  termsUpdated,
  renderSitemap,
  gitLastmod,
  indexNowBody,
  INDEXNOW_KEY,
} = require('./sitemap');
const { pingIndexNow } = require('./pingIndexNow');

const repoRoot = path.resolve(__dirname, '../..');

test('changelog lastmod is the newest entry date', () => {
  const source = `
    { date: '2026-08-01', title: 'Documents' },
    { date: '2026-08-04', title: 'Account deletion' },
  `;
  assert.equal(newestChangelogDate(source), '2026-08-04');
});

test('terms lastmod is the Last Updated line, not today', () => {
  assert.equal(
    termsUpdated('Last Updated: July 27, 2026'),
    '2026-07-27',
  );
});

test('live page sources supply lastmod', () => {
  const changelog = fs.readFileSync(
    path.join(repoRoot, 'llm-fe/src/llm-fe/pages/Changelog/changelogEntries.ts'),
    'utf8',
  );
  const terms = fs.readFileSync(
    path.join(repoRoot, 'llm-fe/src/llm-fe/components/legal/TermsOfServiceDocument.tsx'),
    'utf8',
  );
  assert.equal(newestChangelogDate(changelog), '2026-08-04');
  assert.equal(termsUpdated(terms), '2026-07-27');

  for (const file of [
    'llm-fe/src/llm-fe/pages/Landing/LandingPage.tsx',
    'llm-fe/src/llm-fe/pages/Pricing/PricingPage.tsx',
    'llm-fe/src/llm-fe/pages/Privacy/PrivacyPage.tsx',
    'llm-fe/src/llm-fe/pages/AccountDeletion/AccountDeletionPage.tsx',
  ]) {
    try {
      assert.match(gitLastmod(file), /^\d{4}-\d{2}-\d{2}$/);
    } catch (error) {
      if (!String(error.message).includes('no git commit date')) throw error;
    }
  }

  const xml = renderSitemap([
    { loc: 'https://hesychia.ai/changelog/', lastmod: newestChangelogDate(changelog) },
    { loc: 'https://hesychia.ai/terms_of_service/', lastmod: termsUpdated(terms) },
  ]);
  assert.match(xml, /<loc>https:\/\/hesychia\.ai\/changelog\/<\/loc>\n\s*<lastmod>2026-08-04<\/lastmod>/);
  assert.match(xml, /<lastmod>2026-07-27<\/lastmod>/);
  assert.equal(xml.includes('<html'), false);
});

test('IndexNow POST body lists the published URLs and the hosted key', async () => {
  const urls = ['https://hesychia.ai/', 'https://hesychia.ai/pricing/'];
  assert.deepEqual(indexNowBody(INDEXNOW_KEY, urls), {
    host: 'hesychia.ai',
    key: INDEXNOW_KEY,
    keyLocation: `https://hesychia.ai/${INDEXNOW_KEY}.txt`,
    urlList: urls,
  });

  let posted;
  const result = await pingIndexNow(async (url, init) => {
    posted = { url, init };
    return { status: 202, text: async () => '' };
  }, urls);
  assert.equal(posted.url, 'https://api.indexnow.org/indexnow');
  assert.equal(posted.init.method, 'POST');
  assert.equal(posted.init.headers['Content-Type'], 'application/json');
  const body = JSON.parse(posted.init.body);
  assert.equal(body.keyLocation, `https://hesychia.ai/${INDEXNOW_KEY}.txt`);
  assert.deepEqual(body.urlList, urls);
  assert.equal(result.status, 202);
});