import { readFileSync, readdirSync } from 'node:fs';

const read = (path) => readFileSync(new URL(`../${path}`, import.meta.url), 'utf8');
const built = (path) => read(`dist/${path}`);
const rendered = (value) =>
  value
    .replace(/<script[\s\S]*?<\/script>/gi, '')
    .replace(/<style[\s\S]*?<\/style>/gi, '')
    .replace(/<!--[\s\S]*?-->/g, '')
    .replace(/<[^>]+>/g, ' ')
    .replace(/&amp;/g, '&')
    .replace(
      /&(lt|gt|quot|nbsp);/g,
      (_, entity) => ({ lt: '<', gt: '>', quot: '"', nbsp: ' ' })[entity],
    )
    .replace(/&#0?39;/g, "'")
    .replace(/\s+/g, ' ')
    .trim();
const normalize = (value) => value.replace(/\s+/g, ' ').trim();

const html = {
  landing: built('index.html'),
  guide: built('full-guide/index.html'),
  summary: built('summary/index.html'),
  models: built('models/index.html'),
  agents: built('agents/index.html'),
  skills: built('skills/index.html'),
  rules: built('rules/index.html'),
  review: built('skills-review/index.html'),
  starter: built('hands-on/starter/index.html'),
  labRules: built('hands-on/rules/index.html'),
};
const snapshot = (path) => normalize(read(`.agents/snapshots/${path}`));
const reviewAssetSrc = html.review.match(/src="([^"]+\.[a-zA-Z0-9_-]{8,}\.js)"/)?.[1];
const reviewAsset = reviewAssetSrc ? read(`dist/_astro/${reviewAssetSrc.split('/').at(-1)}`) : '';
const builtCss = readdirSync(new URL('../dist/_astro/', import.meta.url))
  .filter((file) => file.endsWith('.css'))
  .map((file) => read(`dist/_astro/${file}`))
  .join('\n');
const source = {
  references: read('docs/references/README.md'),
  additionalReading: read('docs/references/additional-reading.md'),
  skillSources: read('src/content/skillSources/ponytail.json'),
  providers: [
    read('src/content/providers/openai.json'),
    read('src/content/providers/claude.json'),
    read('src/content/providers/gemini.json'),
  ].join('\n'),
  starter: read('public/hands-on/starter/app.js'),
  ndoReview: read('src/content/reviews/ndo-repro.md'),
};

// Rendered prose catches a deleted paragraph that string-token checks miss.
if (rendered(html.landing) !== snapshot('index.txt'))
  throw new Error('landing rendered-text snapshot changed');
if (rendered(html.guide) !== snapshot('full-guide.txt'))
  throw new Error('full-guide rendered-text snapshot changed');
if (rendered(html.summary) !== snapshot('summary.txt'))
  throw new Error('summary rendered-text snapshot changed');
if (rendered(html.models) !== snapshot('models.txt'))
  throw new Error('models rendered-text snapshot changed');
if (rendered(html.agents) !== snapshot('agents.txt'))
  throw new Error('agents rendered-text snapshot changed');
if (rendered(html.skills) !== snapshot('skills.txt'))
  throw new Error('skills rendered-text snapshot changed');
if (rendered(html.rules) !== snapshot('rules.txt'))
  throw new Error('rules rendered-text snapshot changed');
if (rendered(html.review) !== snapshot('skills-review.txt'))
  throw new Error('skills-review rendered-text snapshot changed');
if (rendered(html.starter) !== snapshot('hands-on/starter.txt'))
  throw new Error('starter rendered-text snapshot changed');
if (rendered(html.labRules) !== snapshot('hands-on/rules.txt'))
  throw new Error('rules lab rendered-text snapshot changed');

// The 102 Portuguese strings were extracted verbatim from the legacy
// `app.js` `translations.pt` object at cutover, before that file was deleted.
// This is a legacy capture, not a snapshot of the Astro build: it still asserts
// against an independent source, which is the whole point of the check.
const portuguese = JSON.parse(read('.agents/snapshots/full-guide-pt.json')).map(rendered);
if (portuguese.length !== 102)
  throw new Error('full-guide Portuguese snapshot no longer has 102 translated strings');
// Without this, trimming the snapshot would make the check below pass vacuously.
if (portuguese.some((value) => !value.trim()))
  throw new Error('full-guide Portuguese snapshot has an empty entry');
if (!portuguese.every((value) => rendered(html.guide).includes(value)))
  throw new Error('built full-guide lost a Portuguese translation');

const has = (page, tokens) => tokens.every((token) => page.includes(token));
if (!has(html.guide, ['data-phase="plan"', 'data-phase="build"', 'data-phase="review"']))
  throw new Error('built full-guide lost its phase selector');
if (!has(html.guide, ['data-tree="main"', 'data-tree="ui"', 'data-worker="ui"']))
  throw new Error('built full-guide lost its worker or worktree selector');
if (
  !has(html.guide, [
    'data-route="plan"',
    'data-model-provider="openai"',
    'data-model-provider="claude"',
    'data-model-provider="gemini"',
  ])
)
  throw new Error('built full-guide lost its model-routing controls');
if (!has(html.guide, ['data-effort="low"', 'data-effort="medium"', 'data-effort="high"']))
  throw new Error('built full-guide lost its reasoning-effort controls');
if (
  !has(html.guide, [
    'data-skill-file="skill"',
    'data-skill-step="observe"',
    'data-skill-step="validate"',
  ])
)
  throw new Error('built full-guide lost its skill anatomy controls');
if (
  !has(html.guide, [
    'data-common-skill="ponytail"',
    'data-common-skill="caveman"',
    'data-common-skill="unlazy"',
  ])
)
  throw new Error('built full-guide lost its common-skill controls');
if (
  !has(html.guide, [
    'id="hands-on"',
    'data-copy-target="prompt-install-skills"',
    'data-copy-target="prompt-basic"',
    'data-copy-target="prompt-skills"',
  ])
)
  throw new Error('built full-guide lost its hands-on prompts');
if (!has(html.guide, ['hands-on/starter/', 'additional-reading.md', 'role="tablist"', '<table']))
  throw new Error('built full-guide lost its guide navigation or semantics');
if (!html.guide.includes('<script type="module">'))
  throw new Error('built full-guide lost its interaction module');

if (
  !has(html.rules, [
    'id="pipeline"',
    'id="skills"',
    'id="examples"',
    'data-stage="context"',
    'data-stage="cli"',
    'data-stage="commit"',
    'data-stage="review"',
  ])
)
  throw new Error('built rules page lost its enforcement pipeline');
if (
  !has(html.rules, [
    'gate-discipline',
    'parallel-agents',
    'repo-db',
    'tech-debt',
    'skill-writer',
    'scripts/check-ui-contract.mjs',
    '.husky/pre-commit',
    '.pr-review.json',
    '.agents/skills',
    'netcracker/interview',
  ])
)
  throw new Error('built rules page lost its case-study content');
if (
  !has(html.rules, [
    'data-lang="en"',
    'data-lang="pt"',
    'data-copy-prompt',
    'aria-live="polite"',
    'role="tablist"',
  ])
)
  throw new Error('built rules page lost its accessible controls');
if (!html.rules.includes('data-rules-copy') || !html.rules.includes('"pt"'))
  throw new Error('built rules page lost its Portuguese interaction data');

if (
  !has(html.review, [
    'id="catalog"',
    'id="skill-filter"',
    'id="skill-list"',
    'id="detail"',
    'Preview Markdown',
    '?author=Name&amp;skill=skill-id&amp;view=improved',
    'SKILLS_REVIEW_VOTE_API',
  ])
)
  throw new Error('built review desk lost its catalog or deep-link contract');
if (
  !has(html.review, [
    'ndo-repro',
    'gfiber-logging',
    'confluence-page',
    'diagram-plantuml',
    'page-reviewer',
    'unslop',
    'spanish-naturalizer',
    'draft-mr',
    'semantic-diff-review',
  ])
)
  throw new Error('built review desk lost submitted-skill coverage');
if (
  !html.review.includes('Anonymous%20Operational%20Submission') ||
  !has(reviewAsset, ['[REDACTED]', '[REDACTED LOCAL USER]', '[REDACTED USER]'])
)
  throw new Error('built review desk lost operational-submission privacy redactions');
if (!reviewAssetSrc) throw new Error('built review desk does not load its hashed island asset');

if (
  ![html.summary, html.models, html.agents, html.skills].every((page) => page.includes('ROUTE MAP'))
)
  throw new Error('built chapter pages lost shared navigation');
if (
  !has(html.landing, [
    'The short route',
    'full-guide/',
    'models/',
    'agents/',
    'skills/',
    'rules/',
    'hands-on/starter/',
    'skills-review/',
  ])
)
  throw new Error('built landing page lost a route-map destination');
if (/<script\b/i.test(html.landing))
  throw new Error('built landing page is no longer a static route map');
if (
  !has(html.skills, [
    'data-skill-file="skill"',
    'data-skill-file="references"',
    'data-skill-file="scripts"',
    'data-skill-file="assets"',
    'id="package-preview"',
  ])
)
  throw new Error('built skills page lost its package explorer');
if (!has(html.starter, ['id="task-list"', 'id="task-count"']))
  throw new Error('starter lab lost its task-list contract');

const allPages = Object.entries(html);
if (!allPages.every(([, page]) => page.includes('name="viewport"')))
  throw new Error('a built route lacks a viewport declaration');
if (allPages.some(([, page]) => /<(script|link)[^>]+(src|href)="https?:[^\"]+"/i.test(page)))
  throw new Error('a built route has an external runtime dependency');
if (
  !read('package.json').includes(
    '"verify": "node scripts/verify.mjs && node scripts/audit-ui.mjs && node .agents/scripts/check-tokens.mjs"',
  )
)
  throw new Error('pnpm verify no longer runs audit-ui and check-tokens');
if (!read('.agents/scripts/gate.sh').includes('pnpm run verify'))
  throw new Error('the gate no longer runs the output contract');
if (!read('docs/references/README.md').includes('https://developers.openai.com/codex/skills'))
  throw new Error('primary reference list lost Codex skills');
if ((read('docs/references/additional-reading.md').match(/^### \d+\./gm) || []).length < 5)
  throw new Error('additional reading list has fewer than five entries');
if (
  /Pedro\s+Aranha|pedro\.aranha|git\.netcracker\.com|artifactorycn|managed\.netcracker\.cloud/i.test(
    read('src/content/reviews/ndo-repro.md'),
  )
)
  throw new Error('operational review content has a privacy leak');

// These retain the pre-Astro contract one fact at a time. Visible facts read
// from dist; source-only contracts remain at their authoritative boundary.
if (
  ![
    'https://code.claude.com/docs/en/sub-agents',
    'https://code.claude.com/docs/en/skills',
    'https://code.claude.com/docs/en/worktrees',
    'https://git-scm.com/docs/git-worktree.html',
    'https://developers.openai.com/codex/skills',
  ].every((url) => source.references.includes(url))
)
  throw new Error('missing reference contract');
if (!has(html.guide, ['data-phase="plan"', 'data-copy-target="prompt-basic"']))
  throw new Error('missing full-guide content contract');
if (!has(html.guide, ['data-route="plan"', 'data-skill-file="skill"', '<script type="module">']))
  throw new Error('missing full-guide interaction contract');
if (!has(html.starter, ['id="task-list"', 'id="task-count"']))
  throw new Error('missing starter content contract');
if (!['const tasks', 'renderTasks()'].every((token) => source.starter.includes(token)))
  throw new Error('missing starter behavior contract');
if (
  ![
    'medium.com',
    'anthropic.com/engineering',
    'openai.com/business',
    'git-scm.com/docs/git-worktree',
  ].every((url) => source.additionalReading.includes(url))
)
  throw new Error('missing additional-reading source contract');
if ((source.additionalReading.match(/^### \d+\./gm) || []).length < 5)
  throw new Error('additional-reading coverage fell below five entries');
if (
  ![
    'e7b42dc2d384a702240dea4d52a7bf5530b821b6',
    '6654f6b60cd9d5be8b54c6fafe44346dabeb3b76',
    '53048666b05b4799081517d00e09e0a2dd688678',
  ].every((sha) => `${source.skillSources}\n${html.guide}`.includes(sha))
)
  throw new Error('missing pinned skill-source contract');
if (
  ![
    'developers.openai.com/api/docs/guides/latest-model',
    'docs.anthropic.com/en/docs/claude-code/model-config',
    'ai.google.dev/gemini-api/docs/thinking',
  ].every((url) => `${source.providers}\n${html.guide}`.includes(url))
)
  throw new Error('missing model-source contract');
if (/<(script|link)[^>]+(src|href)="https?:[^\"]+"/i.test(html.guide))
  throw new Error('full-guide has an external runtime dependency');
if (!has(html.rules, ['id="pipeline"', 'id="skills"', 'id="examples"']))
  throw new Error('missing rules content contract');
if (!has(html.rules, ['data-stage="context"', 'data-copy-prompt', '<script>']))
  throw new Error('missing rules interaction contract');
if (!has(html.rules, ['data-lang="en"', 'data-lang="pt"', 'aria-live="polite"']))
  throw new Error('missing rules-control contract');
if (!html.guide.includes('href="/ai-for-dummies/rules/"'))
  throw new Error('full-guide no longer links to rules');
if (!html.guide.includes('href="/ai-for-dummies/skills-review/"'))
  throw new Error('full-guide no longer links to skills review');
if (!['summary/', 'models/', 'agents/', 'skills/'].every((route) => html.guide.includes(route)))
  throw new Error('full-guide is missing a chapter route');
if (/<(script|link)[^>]+(src|href)="https?:[^\"]+"/i.test(html.rules))
  throw new Error('rules page has an external runtime dependency');
if (
  !['@media(max-width:800px)', '@media(min-width:2200px)', 'prefers-reduced-motion'].every(
    (token) => builtCss.includes(token),
  )
)
  throw new Error('missing rules responsive contract');
if (!has(html.review, ['id="catalog"', 'id="skill-filter"', 'id="skill-list"', 'id="detail"']))
  throw new Error('missing review page-content contract');
if (
  !['data-render', 'preview-markdown', 'data-file', 'URLSearchParams', 'navigator.clipboard'].every(
    (token) => reviewAsset.includes(token),
  )
)
  throw new Error('missing review interaction contract');
if (
  !['reference.md', 'ndo-repro', 'semantic-diff-review'].every((token) =>
    html.review.includes(token),
  )
)
  throw new Error('missing review file-manifest contract');
// The desk renders its cards from an inline JSON payload, so `data-skill-id`
// only exists after the island runs. Count the entries in the payload instead.
if ((html.review.match(/\\"id\\":/g) || []).length !== 24)
  throw new Error('review catalog no longer covers all submissions');
if (!source.ndoReview.includes('safety-redacted') || !reviewAsset.includes('[REDACTED]'))
  throw new Error('review catalog lost its secret-safety contract');
if (
  ![html.summary, html.models, html.agents, html.skills].every((page) => page.includes('ROUTE MAP'))
)
  throw new Error('chapter page missing shared navigation');
if (
  !['@media(max-width:800px)', '@media(max-width:520px)', '--ink'].every((token) =>
    builtCss.includes(token),
  )
)
  throw new Error('missing chapter responsive contract');
if (!has(html.landing, ['The short route', 'full-guide/', 'skills-review/']))
  throw new Error('landing page missing a route-map destination');
if (/<script\b/i.test(html.landing))
  throw new Error('landing page is no longer a static route map');
if (
  !has(html.skills, [
    'data-skill-file="skill"',
    'data-skill-file="references"',
    'id="package-preview"',
  ])
)
  throw new Error('skills anatomy missing package contract');
if (!html.skills.includes('<script>'))
  throw new Error('skills anatomy lost its interaction module');
if (
  !['overflow-wrap:anywhere', '@media(max-width:800px)', 'prefers-reduced-motion'].every((token) =>
    builtCss.includes(token),
  )
)
  throw new Error('skills anatomy lost responsive contract');
if (
  /Pedro\s+Aranha|pedro\.aranha|git\.netcracker\.com|artifactorycn|managed\.netcracker\.cloud/i.test(
    source.ndoReview,
  )
)
  throw new Error('operational submission privacy leak');
if (html.review.includes('Pedro%20Aranha') || html.review.includes('pedro.aranha'))
  throw new Error('operational submission identity remains in review output');
if (
  !html.review.includes('Anonymous%20Operational%20Submission') ||
  !reviewAsset.includes('[REDACTED LOCAL USER]')
)
  throw new Error('operational submission redaction contract missing');
if (!['dataset.preview', 'dataset.file'].every((token) => reviewAsset.includes(token)))
  throw new Error('review file-mode contract missing');
if (!reviewAsset.includes('preview-markdown'))
  throw new Error('review file selection no longer preserves preview mode');
if (!['data-lens', 'CHANGE LENS', 'What changed'].every((token) => reviewAsset.includes(token)))
  throw new Error('review change-lens contract missing');
if (
  !['.change-lens', '.change-rows', '.skill-diff', '@media(max-width:620px)'].every((token) =>
    builtCss.includes(token),
  )
)
  throw new Error('review change-lens CSS contract missing');
if (
  !['.markdown-preview', 'max-height:540px', '.markdown-table-wrap', '.markdown-toc'].every(
    (token) => builtCss.includes(token),
  )
)
  throw new Error('review markdown-preview contract missing');
if (
  !html.review.includes(
    'src="/ai-for-dummies/_astro/skills-review.astro_astro_type_script_index_0_lang.',
  )
)
  throw new Error('review vote-widget island is not wired to a hashed asset');
if (
  !['id="vote-widget"', 'X-Voter-Id', '/api/votes', 'Voting is offline'].every((token) =>
    `${html.review}\n${reviewAsset}`.includes(token),
  )
)
  throw new Error('review vote-widget contract missing');
// The CSS minifier drops the attribute value's quotes, so the built sheet
// carries `[aria-pressed=true]`. Match either form.
if (
  !['.vote-widget', '.vote-buttons'].every((token) => builtCss.includes(token)) ||
  !/\[aria-pressed=["']?true["']?\]/.test(builtCss)
)
  throw new Error('review vote-widget CSS contract missing');
// The `vote-service` one-vote-per-IP assertion was removed when the service's
// source left this repository. It read `vote-service/main.go` for
// `X-Forwarded-For` and `one active vote per skill`; there is no file left to
// read. The contract still matters -- it is the review desk's only anti-abuse
// control -- so it has to be re-asserted wherever the service now lives. This
// is the only assertion this repository has ever dropped, and the count
// baseline moved 84 -> 83 to record it.

console.log('built output verification passed');