import { strict as assert } from 'node:assert';
import { rm } from 'node:fs/promises';
import path from 'node:path';
import { afterEach, beforeEach, describe, it } from 'node:test';
import type { FastifyInstance } from 'fastify';
import { LoginThrottle, SESSION_COOKIE, createSessionToken, csrfToken, hashPassword } from '../src/auth.ts';
import { parseSiteConfig } from '../src/config.ts';
import { buildApp } from '../src/server.ts';
import { FakePipeline, pngBytes, tempDir, testClock } from './support/harness.ts';

const ASSETS = path.join(import.meta.dirname, '..', 'public');
const SECRET = 'admin-test-secret';
const PASSWORD = 'a good long password';

let dataDir: string;
let app: FastifyInstance;
let session: string;
let csrf: string;

const CLOCK = testClock('2026-05-01T06:00:00.000Z');

async function build(
  throttle?: LoginThrottle,
  limits?: { maxUploadBytes?: number; maxPagesPerSet?: number },
): Promise<FastifyInstance> {
  const built = await buildApp({
    config: parseSiteConfig({
      site: 'menu.example.test',
      brand: { name: 'Hops n Grains' },
      sections: [
        { slug: 'food', label: 'Food', order: 1 },
        { slug: 'bar', label: 'Bar', order: 2 },
      ],
      ...(limits === undefined ? {} : { limits }),
    }),
    dataDir,
    sessionSecret: SECRET,
    adminPasswordHash: await hashPassword(PASSWORD),
    assetsDir: ASSETS,
    secureCookies: false,
    logLevel: 'silent',
    pipeline: new FakePipeline(),
    now: CLOCK.now,
    ...(throttle === undefined ? {} : { throttle }),
  });
  await built.ready();
  return built;
}

beforeEach(async () => {
  dataDir = await tempDir('admin');
  app = await build();
  session = createSessionToken(SECRET, 60 * 60 * 1000, new Date());
  csrf = csrfToken(session, SECRET);
});

afterEach(async () => {
  await app.close();
  await rm(dataDir, { recursive: true, force: true });
});

const cookies = () => ({ [SESSION_COOKIE]: session });

async function newSet(section = 'bar', label = 'Bar Menu', validUntil: string | null = null) {
  const response = await app.inject({
    method: 'POST',
    url: '/admin/sets',
    cookies: cookies(),
    headers: { 'x-csrf': csrf },
    payload: { section, label, ...(validUntil === null ? {} : { validUntil }) },
  });
  const location = String(response.headers['location'] ?? '');
  return { response, id: location.replace('/admin/sets/', '') };
}

async function upload(id: string, name: string) {
  const boundary = '----menuadminboundary';
  const payload = Buffer.concat([
    Buffer.from(
      `--${boundary}\r\nContent-Disposition: form-data; name="pages"; filename="${name}"\r\nContent-Type: image/jpeg\r\n\r\n`,
    ),
    pngBytes(name),
    Buffer.from(`\r\n--${boundary}--\r\n`),
  ]);
  return app.inject({
    method: 'POST',
    url: `/admin/sets/${id}/pages`,
    cookies: cookies(),
    headers: {
      'x-csrf': csrf,
      accept: 'application/json',
      'content-type': `multipart/form-data; boundary=${boundary}`,
    },
    payload,
  });
}

describe('signing in', () => {
  it('sends an anonymous visitor to the login form', async () => {
    const dashboard = await app.inject({ method: 'GET', url: '/admin' });
    assert.equal(dashboard.statusCode, 303);
    assert.equal(dashboard.headers['location'], '/admin/login');

    const login = await app.inject({ method: 'GET', url: '/admin/login' });
    assert.equal(login.statusCode, 200);
    assert.match(login.body, /type="password"/);
  });

  it('rejects a wrong password and accepts the right one', async () => {
    const wrong = await app.inject({
      method: 'POST',
      url: '/admin/login',
      payload: { password: 'not it' },
    });
    assert.equal(wrong.statusCode, 401);
    assert.equal(wrong.headers['set-cookie'], undefined);
    assert.match(wrong.body, /not right/);

    const right = await app.inject({
      method: 'POST',
      url: '/admin/login',
      payload: { password: PASSWORD },
    });
    assert.equal(right.statusCode, 303);
    const cookie = String(right.headers['set-cookie']);
    assert.match(cookie, /menu_session=/);
    assert.match(cookie, /HttpOnly/);
    assert.match(cookie, /SameSite=Lax/);
  });

  it('throttles repeated failures per IP', async () => {
    const throttled = await build(new LoginThrottle({ maxFailures: 2, windowMs: 60_000 }));
    for (let attempt = 0; attempt < 2; attempt += 1) {
      await throttled.inject({ method: 'POST', url: '/admin/login', payload: { password: 'no' } });
    }
    const blocked = await throttled.inject({
      method: 'POST',
      url: '/admin/login',
      payload: { password: 'no' },
    });
    assert.equal(blocked.statusCode, 429);
    assert.ok(Number(blocked.headers['retry-after']) > 0);
    await throttled.close();
  });

  it('signs out', async () => {
    const response = await app.inject({ method: 'POST', url: '/admin/logout', cookies: cookies() });
    assert.equal(response.statusCode, 303);
    assert.match(String(response.headers['set-cookie']), /menu_session=;/);
  });
});

describe('guarding the admin', () => {
  it('needs a session for the dashboard and the editor', async () => {
    assert.equal((await app.inject({ method: 'GET', url: '/admin' })).statusCode, 303);
    const { id } = await newSet();
    assert.equal((await app.inject({ method: 'GET', url: `/admin/sets/${id}` })).statusCode, 303);
  });

  it('needs a CSRF token on mutations', async () => {
    const missing = await app.inject({
      method: 'POST',
      url: '/admin/sets',
      cookies: cookies(),
      payload: { section: 'bar', label: 'Bar Menu' },
    });
    assert.equal(missing.statusCode, 403);

    const wrong = await app.inject({
      method: 'POST',
      url: '/admin/sets',
      cookies: cookies(),
      headers: { 'x-csrf': 'not-the-token' },
      payload: { section: 'bar', label: 'Bar Menu' },
    });
    assert.equal(wrong.statusCode, 403);

    // A token minted for a different session must not work either.
    const otherSession = createSessionToken(SECRET, 60_000, new Date());
    const stolen = await app.inject({
      method: 'POST',
      url: '/admin/sets',
      cookies: cookies(),
      headers: { 'x-csrf': csrfToken(otherSession, SECRET) },
      payload: { section: 'bar', label: 'Bar Menu' },
    });
    assert.equal(stolen.statusCode, 403);
  });

  it('rejects a cross-site mutation even with a session', async () => {
    const response = await app.inject({
      method: 'POST',
      url: '/admin/sets',
      cookies: cookies(),
      headers: { 'x-csrf': csrf, 'sec-fetch-site': 'cross-site' },
      payload: { section: 'bar', label: 'Bar Menu' },
    });
    assert.equal(response.statusCode, 403);
  });
});

describe('the dashboard', () => {
  it('lists Sections, their Current set and their Drafts', async () => {
    const { id } = await newSet('bar', 'Bar Menu');
    await upload(id, 'one.jpg');
    await app.inject({
      method: 'POST',
      url: `/admin/sets/${id}/publish`,
      cookies: cookies(),
      headers: { 'x-csrf': csrf },
    });
    await newSet('bar', 'Bar Menu, next');

    const response = await app.inject({ method: 'GET', url: '/admin', cookies: cookies() });
    assert.equal(response.statusCode, 200);
    assert.match(response.body, /Bar Menu/);
    assert.match(response.body, /Bar Menu, next/);
    assert.match(response.body, /pill--current/);
    assert.match(response.body, /pill--draft/);
    assert.match(response.body, /No menu published yet/);
    assert.match(response.body, /Food Menu/);
  });

  it('carries a notice through a redirect', async () => {
    const response = await app.inject({
      method: 'GET',
      url: '/admin?notice=Saved.',
      cookies: cookies(),
    });
    assert.match(response.body, /Saved\./);
  });
});

describe('the editor', () => {
  it('creates a Draft and shows the upload controls', async () => {
    const { response, id } = await newSet('bar', 'Bar Menu', '2026-06-26');
    assert.equal(response.statusCode, 303);
    assert.equal(response.headers['location'], `/admin/sets/${id}`);

    const editor = await app.inject({ method: 'GET', url: `/admin/sets/${id}`, cookies: cookies() });
    assert.equal(editor.statusCode, 200);
    assert.match(editor.body, /data-drop/);
    assert.match(editor.body, /data-pages-admin/);
    assert.match(editor.body, /enctype="multipart\/form-data"/);
    assert.match(editor.body, new RegExp(`data-csrf="${csrf}"`));
    assert.match(editor.body, /No pages yet/);
    assert.match(editor.body, /value="2026-06-26"/);
  });

  it('refuses a Section it does not know', async () => {
    const response = await app.inject({
      method: 'POST',
      url: '/admin/sets',
      cookies: cookies(),
      headers: { 'x-csrf': csrf },
      payload: { section: 'pizza', label: 'Pizza' },
    });
    assert.equal(response.statusCode, 400);
  });

  it('updates the label and valid-until date', async () => {
    const { id } = await newSet();
    const response = await app.inject({
      method: 'POST',
      url: `/admin/sets/${id}/update`,
      cookies: cookies(),
      headers: { 'x-csrf': csrf, referer: `/admin/sets/${id}` },
      payload: { label: 'Bar Menu, summer', validUntil: '2026-09-30' },
    });
    assert.equal(response.statusCode, 303);
    const set = await app.menu.store.get(id);
    assert.equal(set.manifest.label, 'Bar Menu, summer');
    assert.equal(set.manifest.validUntil, '2026-09-30');
  });
});

describe('uploading Pages', () => {
  it('accepts a multipart file and reports the count', async () => {
    const { id } = await newSet();
    const response = await upload(id, 'IMG_0001.JPG');
    assert.equal(response.statusCode, 200);
    assert.deepEqual(response.json(), { added: 1, failed: [] });

    const editor = await app.inject({ method: 'GET', url: `/admin/sets/${id}`, cookies: cookies() });
    assert.match(editor.body, /IMG_0001\.JPG/);
    assert.match(editor.body, /\/media\/thumb-/);
  });

  it('reports a file the pipeline will not accept, by name', async () => {
    const { id } = await newSet();
    const boundary = '----x';
    const payload = Buffer.concat([
      Buffer.from(
        `--${boundary}\r\nContent-Disposition: form-data; name="pages"; filename="notes.pdf"\r\nContent-Type: application/pdf\r\n\r\nnot an image\r\n--${boundary}--\r\n`,
      ),
    ]);
    // The fake pipeline accepts anything, so this exercises the wiring only:
    // a real rejection is covered by the pipeline tests.
    const response = await app.inject({
      method: 'POST',
      url: `/admin/sets/${id}/pages`,
      cookies: cookies(),
      headers: {
        'x-csrf': csrf,
        accept: 'application/json',
        'content-type': `multipart/form-data; boundary=${boundary}`,
      },
      payload,
    });
    assert.equal(response.statusCode, 200);
  });

  it('refuses to add a Page to a published set', async () => {
    const { id } = await newSet();
    await upload(id, 'one.jpg');
    await app.inject({
      method: 'POST',
      url: `/admin/sets/${id}/publish`,
      cookies: cookies(),
      headers: { 'x-csrf': csrf },
    });
    const response = await upload(id, 'two.jpg');
    assert.equal(response.statusCode, 409);
  });

  it('reports a file over the upload limit, stores nothing, and stays healthy', async () => {
    const limited = await build(undefined, { maxUploadBytes: 2048 });
    const created = await limited.inject({
      method: 'POST',
      url: '/admin/sets',
      cookies: cookies(),
      headers: { 'x-csrf': csrf },
      payload: { section: 'bar', label: 'Bar Menu' },
    });
    const id = String(created.headers['location']).replace('/admin/sets/', '');

    const boundary = '----oversize';
    const payload = Buffer.concat([
      Buffer.from(
        `--${boundary}\r\nContent-Disposition: form-data; name="pages"; filename="huge.jpg"\r\nContent-Type: image/jpeg\r\n\r\n`,
      ),
      Buffer.alloc(8 * 1024, 7),
      Buffer.from(`\r\n--${boundary}--\r\n`),
    ]);

    const response = await limited.inject({
      method: 'POST',
      url: `/admin/sets/${id}/pages`,
      cookies: cookies(),
      headers: {
        'x-csrf': csrf,
        accept: 'application/json',
        'content-type': `multipart/form-data; boundary=${boundary}`,
      },
      payload,
    });

    const body = response.json() as { added: number; failed: { error: string }[] };
    assert.equal(response.statusCode, 413);
    assert.equal(body.added, 0);
    assert.equal(body.failed.length, 1, 'the reason is reported once, not twice');
    assert.match(body.failed.map((item) => item.error).join(' '), /larger than the 2 KB limit/);
    assert.deepEqual((await limited.menu.store.get(id)).manifest.pages, []);
    assert.equal((await limited.inject({ method: 'GET', url: '/healthz' })).statusCode, 200);
    await limited.close();
  });

  it('removes a Page', async () => {
    const { id } = await newSet();
    await upload(id, 'one.jpg');
    const set = await app.menu.store.get(id);
    const pageId = set.manifest.pages[0]!.id;
    const response = await app.inject({
      method: 'POST',
      url: `/admin/sets/${id}/pages/${pageId}/delete`,
      cookies: cookies(),
      headers: { 'x-csrf': csrf, referer: `/admin/sets/${id}` },
    });
    assert.equal(response.statusCode, 303);
    assert.equal((await app.menu.store.get(id)).manifest.pages.length, 0);
  });
});

describe('ordering', () => {
  async function threePages() {
    const { id } = await newSet();
    await upload(id, 'one.jpg');
    await upload(id, 'two.jpg');
    await upload(id, 'three.jpg');
    const set = await app.menu.store.get(id);
    return { id, ids: set.manifest.pages.map((page) => page.id) };
  }

  it('moves a Page up with a form post', async () => {
    const { id, ids } = await threePages();
    const response = await app.inject({
      method: 'POST',
      url: `/admin/sets/${id}/move`,
      cookies: cookies(),
      headers: { 'x-csrf': csrf, referer: `/admin/sets/${id}` },
      payload: { pageId: ids[1], direction: 'up' },
    });
    assert.equal(response.statusCode, 303);
    assert.deepEqual(
      (await app.menu.store.get(id)).manifest.pages.map((page) => page.id),
      [ids[1], ids[0], ids[2]],
    );
  });

  it('ignores a move past either end', async () => {
    const { id, ids } = await threePages();
    await app.inject({
      method: 'POST',
      url: `/admin/sets/${id}/move`,
      cookies: cookies(),
      headers: { 'x-csrf': csrf, referer: `/admin/sets/${id}` },
      payload: { pageId: ids[0], direction: 'up' },
    });
    assert.deepEqual(
      (await app.menu.store.get(id)).manifest.pages.map((page) => page.id),
      ids,
    );
  });

  it('reorders from a JSON list, and rejects a bad one', async () => {
    const { id, ids } = await threePages();
    const response = await app.inject({
      method: 'POST',
      url: `/admin/sets/${id}/reorder`,
      cookies: cookies(),
      headers: { 'x-csrf': csrf, accept: 'application/json' },
      payload: { pageIds: [ids[2], ids[0], ids[1]] },
    });
    assert.equal(response.statusCode, 200);
    assert.deepEqual(
      (await app.menu.store.get(id)).manifest.pages.map((page) => page.id),
      [ids[2], ids[0], ids[1]],
    );

    const bad = await app.inject({
      method: 'POST',
      url: `/admin/sets/${id}/reorder`,
      cookies: cookies(),
      headers: { 'x-csrf': csrf, accept: 'application/json' },
      payload: { pageIds: [ids[0]] },
    });
    assert.equal(bad.statusCode, 400);
  });
});

describe('publishing, restoring and deleting', () => {
  it('publishes a Draft and sends the admin to the live menu', async () => {
    const { id } = await newSet('bar', 'Bar Menu', '2026-06-26');
    await upload(id, 'one.jpg');
    const response = await app.inject({
      method: 'POST',
      url: `/admin/sets/${id}/publish`,
      cookies: cookies(),
      headers: { 'x-csrf': csrf },
    });
    assert.equal(response.statusCode, 303);
    assert.equal(response.headers['location'], '/bar/');
    assert.equal((await app.menu.store.get(id)).slug, '2026-06-26');
  });

  it('refuses to publish an empty set', async () => {
    const { id } = await newSet();
    const response = await app.inject({
      method: 'POST',
      url: `/admin/sets/${id}/publish`,
      cookies: cookies(),
      headers: { 'x-csrf': csrf },
    });
    assert.equal(response.statusCode, 409);
  });

  it('makes an archived set Current again', async () => {
    const first = await newSet('bar', 'Bar Menu', '2026-06-26');
    await upload(first.id, 'one.jpg');
    await app.inject({
      method: 'POST',
      url: `/admin/sets/${first.id}/publish`,
      cookies: cookies(),
      headers: { 'x-csrf': csrf },
    });

    CLOCK.advance(60_000);
    const second = await newSet('bar', 'Bar Menu, next');
    await upload(second.id, 'two.jpg');
    await app.inject({
      method: 'POST',
      url: `/admin/sets/${second.id}/publish`,
      cookies: cookies(),
      headers: { 'x-csrf': csrf },
    });

    CLOCK.advance(60_000);
    const response = await app.inject({
      method: 'POST',
      url: `/admin/sets/${first.id}/restore`,
      cookies: cookies(),
      headers: { 'x-csrf': csrf },
    });
    assert.equal(response.statusCode, 303);
    const current = (await app.menu.store.currentBySection()).get('bar');
    assert.equal(current?.manifest.id, first.id);
  });

  it('deletes a Draft and refuses to delete the Current set without confirmation', async () => {
    const { id } = await newSet();
    await upload(id, 'one.jpg');
    await app.inject({
      method: 'POST',
      url: `/admin/sets/${id}/publish`,
      cookies: cookies(),
      headers: { 'x-csrf': csrf },
    });

    const unconfirmed = await app.inject({
      method: 'POST',
      url: `/admin/sets/${id}/delete`,
      cookies: cookies(),
      headers: { 'x-csrf': csrf },
      payload: {},
    });
    assert.equal(unconfirmed.statusCode, 409);

    const confirmed = await app.inject({
      method: 'POST',
      url: `/admin/sets/${id}/delete`,
      cookies: cookies(),
      headers: { 'x-csrf': csrf },
      payload: { confirm: 'yes' },
    });
    assert.equal(confirmed.statusCode, 303);
    assert.deepEqual(await app.menu.store.list(), []);
  });
});

describe('forms as a browser sends them', () => {
  // A real browser posts form fields, not an x-csrf header. These tests exist
  // because the header path passed while every button in the UI was broken.
  function csrfFrom(body: string): string {
    const match = body.match(/name="csrf" value="([^"]+)"/);
    assert.ok(match, 'the page carries no CSRF field');
    return match[1]!;
  }

  const encoded = (fields: Record<string, string>) => ({
    headers: { 'content-type': 'application/x-www-form-urlencoded' },
    payload: new URLSearchParams(fields).toString(),
  });

  it('creates a Draft from the dashboard form, with no CSRF header', async () => {
    const dashboard = await app.inject({ method: 'GET', url: '/admin', cookies: cookies() });
    const response = await app.inject({
      method: 'POST',
      url: '/admin/sets',
      cookies: cookies(),
      ...encoded({ csrf: csrfFrom(dashboard.body), section: 'bar', label: 'Bar Menu' }),
    });
    assert.equal(response.statusCode, 303);
    assert.match(String(response.headers['location']), /^\/admin\/sets\//);
  });

  it('publishes from the editor form, with no CSRF header', async () => {
    const { id } = await newSet();
    await upload(id, 'one.jpg');
    const editor = await app.inject({ method: 'GET', url: `/admin/sets/${id}`, cookies: cookies() });
    const response = await app.inject({
      method: 'POST',
      url: `/admin/sets/${id}/publish`,
      cookies: cookies(),
      ...encoded({ csrf: csrfFrom(editor.body) }),
    });
    assert.equal(response.statusCode, 303);
    assert.equal(response.headers['location'], '/bar/');
  });

  it('moves a Page with the up button as a browser sends it', async () => {
    const { id } = await newSet();
    await upload(id, 'one.jpg');
    await upload(id, 'two.jpg');
    const before = (await app.menu.store.get(id)).manifest.pages.map((page) => page.id);
    const editor = await app.inject({ method: 'GET', url: `/admin/sets/${id}`, cookies: cookies() });
    const response = await app.inject({
      method: 'POST',
      url: `/admin/sets/${id}/move`,
      cookies: cookies(),
      headers: {
        'content-type': 'application/x-www-form-urlencoded',
        referer: `/admin/sets/${id}`,
      },
      payload: new URLSearchParams({
        csrf: csrfFrom(editor.body),
        pageId: before[1]!,
        direction: 'up',
      }).toString(),
    });
    assert.equal(response.statusCode, 303);
    assert.deepEqual(
      (await app.menu.store.get(id)).manifest.pages.map((page) => page.id),
      [before[1], before[0]],
    );
  });

  it('accepts the token as a multipart field, the way the no-JS upload form sends it', async () => {
    const { id } = await newSet();
    const editor = await app.inject({ method: 'GET', url: `/admin/sets/${id}`, cookies: cookies() });
    const token = csrfFrom(editor.body);

    const boundary = '----formboundary';
    const payload = Buffer.concat([
      Buffer.from(
        `--${boundary}\r\nContent-Disposition: form-data; name="csrf"\r\n\r\n${token}\r\n`,
      ),
      Buffer.from(
        `--${boundary}\r\nContent-Disposition: form-data; name="pages"; filename="one.jpg"\r\nContent-Type: image/jpeg\r\n\r\n`,
      ),
      pngBytes('one'),
      Buffer.from(`\r\n--${boundary}--\r\n`),
    ]);

    const response = await app.inject({
      method: 'POST',
      url: `/admin/sets/${id}/pages`,
      cookies: cookies(),
      headers: {
        'content-type': `multipart/form-data; boundary=${boundary}`,
        referer: `/admin/sets/${id}`,
      },
      payload,
    });
    assert.equal(response.statusCode, 303);
    assert.equal((await app.menu.store.get(id)).manifest.pages.length, 1);
  });

  it('refuses a multipart upload that carries no token at all', async () => {
    const { id } = await newSet();
    const boundary = '----formboundary';
    const payload = Buffer.concat([
      Buffer.from(
        `--${boundary}\r\nContent-Disposition: form-data; name="pages"; filename="one.jpg"\r\nContent-Type: image/jpeg\r\n\r\n`,
      ),
      pngBytes('one'),
      Buffer.from(`\r\n--${boundary}--\r\n`),
    ]);

    const response = await app.inject({
      method: 'POST',
      url: `/admin/sets/${id}/pages`,
      cookies: cookies(),
      headers: { 'content-type': `multipart/form-data; boundary=${boundary}` },
      payload,
    });
    assert.equal(response.statusCode, 403);
    assert.equal((await app.menu.store.get(id)).manifest.pages.length, 0);
  });

  it('puts a CSRF field in every form that mutates', async () => {
    const { id } = await newSet('bar', 'Bar Menu');
    await upload(id, 'one.jpg');
    const dashboard = (await app.inject({ method: 'GET', url: '/admin', cookies: cookies() })).body;
    const editor = (await app.inject({ method: 'GET', url: `/admin/sets/${id}`, cookies: cookies() })).body;

    for (const [where, body] of [['dashboard', dashboard], ['editor', editor]] as const) {
      const forms = [...body.matchAll(/<form\b[^>]*>[\s\S]*?<\/form>/g)].map((match) => match[0]);
      assert.ok(forms.length > 0, `no forms found in the ${where}`);
      for (const form of forms) {
        assert.match(form, /name="csrf"/, `a ${where} form carries no CSRF field:\n${form}`);
      }
    }
  });
});

describe('reordering', () => {
  async function publishBar(label = 'Bar Menu', validUntil: string | null = null) {
    const { id } = await newSet('bar', label, validUntil);
    await upload(id, 'one.jpg');
    await upload(id, 'two.jpg');
    const response = await app.inject({
      method: 'POST',
      url: `/admin/sets/${id}/publish`,
      cookies: cookies(),
      headers: { 'x-csrf': csrf },
    });
    assert.equal(response.statusCode, 303);
    return id;
  }

  it('offers dragging on the Current set and the new order reaches customers', async () => {
    const id = await publishBar('Bar Menu', '2026-06-26');

    const editor = await app.inject({ method: 'GET', url: `/admin/sets/${id}`, cookies: cookies() });
    assert.equal(editor.statusCode, 200);
    assert.match(editor.body, /data-pages-admin/);
    assert.match(editor.body, /page-admin__handle/);
    assert.equal((editor.body.match(/draggable="true"/g) ?? []).length, 2);
    assert.match(editor.body, /the menu customers are seeing/);
    assert.doesNotMatch(editor.body, /Make current/);

    const before = (await app.menu.store.get(id)).manifest.pages.map((page) => page.id);
    const reorder = await app.inject({
      method: 'POST',
      url: `/admin/sets/${id}/reorder`,
      cookies: cookies(),
      headers: { 'x-csrf': csrf, accept: 'application/json' },
      payload: { pageIds: [before[1], before[0]] },
    });
    assert.equal(reorder.statusCode, 200);

    const live = await app.inject({ method: 'GET', url: '/bar/' });
    const served = [...live.body.matchAll(/\/media\/([0-9a-f-]{36})\./g)].map((match) => match[1]);
    assert.deepEqual([...new Set(served)], [before[1], before[0]]);
  });

  it('keeps an Archive read-only, with no handle to pull', async () => {
    const archived = await publishBar('Bar Menu', '2026-06-26');

    CLOCK.advance(60_000);
    const next = await newSet('bar', 'Bar Menu, next');
    await upload(next.id, 'two.jpg');
    await app.inject({
      method: 'POST',
      url: `/admin/sets/${next.id}/publish`,
      cookies: cookies(),
      headers: { 'x-csrf': csrf },
    });

    const editor = await app.inject({
      method: 'GET',
      url: `/admin/sets/${archived}`,
      cookies: cookies(),
    });
    assert.equal(editor.statusCode, 200);
    assert.match(editor.body, /This is an older menu/);
    assert.doesNotMatch(editor.body, /page-admin__handle/);
    assert.doesNotMatch(editor.body, /data-pages-admin/);
    assert.equal((editor.body.match(/draggable="false"/g) ?? []).length, 2);
    assert.match(editor.body, /Make current/);

    const pages = (await app.menu.store.get(archived)).manifest.pages.map((page) => page.id);
    const reorder = await app.inject({
      method: 'POST',
      url: `/admin/sets/${archived}/reorder`,
      cookies: cookies(),
      headers: { 'x-csrf': csrf, accept: 'application/json' },
      payload: { pageIds: [pages[1], pages[0]] },
    });
    assert.equal(reorder.statusCode, 409);
  });
});

describe('previewing a Draft', () => {
  it('renders the customer page with a banner, and serves its media to the session', async () => {
    const { id } = await newSet('bar', 'Bar Menu', '2026-06-26');
    await upload(id, 'one.jpg');
    const set = await app.menu.store.get(id);
    const page = set.manifest.pages[0]!;

    const preview = await app.inject({
      method: 'GET',
      url: `/admin/sets/${id}/preview`,
      cookies: cookies(),
    });
    assert.equal(preview.statusCode, 200);
    assert.match(preview.body, /Preview of a Draft/);
    assert.match(preview.body, /alt="Bar, page 1 of 1"/);
    assert.match(preview.body, /name="robots" content="noindex"/);
    assert.doesNotMatch(preview.body, /Older menus/);

    const media = `/media/${page.id}.${page.hash}.webp`;
    assert.equal((await app.inject({ method: 'GET', url: media })).statusCode, 404);
    assert.equal(
      (await app.inject({ method: 'GET', url: media, cookies: cookies() })).statusCode,
      200,
    );
  });

  it('needs a session to preview', async () => {
    const { id } = await newSet();
    const response = await app.inject({ method: 'GET', url: `/admin/sets/${id}/preview` });
    assert.equal(response.statusCode, 303);
  });
});