import { test } from 'node:test';
import assert from 'node:assert/strict';
import { createRequire } from 'node:module';
import { mkdtemp, readFile, writeFile, mkdir, readdir, rm } from 'node:fs/promises';
import { tmpdir } from 'node:os';
import path from 'node:path';

const require = createRequire(import.meta.url);
const { Vault, cleanTitle } = require('../electron/vault.cjs');
const { parseFrontMatter, serializeFrontMatter } = require('../electron/frontmatter.cjs');
const { openDb } = require('../electron/db.cjs');
const { seedVault, isEmpty } = require('../electron/seed.cjs');

const tmp = () => mkdtemp(path.join(tmpdir(), 'notes-test-'));

test('front matter parses and serializes, keeping unknown keys', () => {
  const raw = '---\ntitle: "Hello: world"\ntags: [dev, todo]\naliases:\n  - one\n  - two\nicon: pen\n---\n\nBody here\n';
  const { meta, body } = parseFrontMatter(raw);
  assert.deepEqual(meta, { title: 'Hello: world', tags: ['dev', 'todo'], aliases: ['one', 'two'], icon: 'pen' });
  assert.equal(body, 'Body here\n');
  const out = serializeFrontMatter(meta);
  assert.equal(out, '---\nicon: pen\ntags: [dev, todo]\ntitle: "Hello: world"\naliases: [one, two]\n---\n\n');
  assert.deepEqual(parseFrontMatter(out + 'x').meta, meta);
  assert.deepEqual(parseFrontMatter('no front matter').meta, {});
  assert.equal(serializeFrontMatter({ tags: [], icon: '' }), '');
});

test('titles are made safe for file names', () => {
  assert.equal(cleanTitle('a/b:c*d?'), 'a-b-c-d-');
  assert.equal(cleanTitle('   '), 'Untitled');
  assert.equal(cleanTitle('..hidden'), 'hidden');
});

test('vault creates, writes, nests, renames and removes pages', async () => {
  const root = await tmp();
  try {
    const v = new Vault(root);
    const a = await v.create(null, 'Projects', { icon: 'compass' });
    assert.equal(a, 'Projects');
    const b = await v.create('Projects', 'Roadmap');
    assert.equal(b, 'Projects/Roadmap');
    const b2 = await v.create('Projects', 'Roadmap');
    assert.equal(b2, 'Projects/Roadmap 2');

    await v.write(b, { tags: ['dev'], created: '2026-10-07' }, '- [ ] ship\n');
    const raw = await readFile(path.join(root, 'Projects', 'Roadmap.md'), 'utf8');
    assert.equal(raw, '---\ntags: [dev]\ncreated: 2026-10-07\n---\n\n- [ ] ship\n');

    const read = await v.read(b);
    assert.equal(read.body, '- [ ] ship\n');
    assert.deepEqual(read.meta.tags, ['dev']);

    // a loose folder shows up as a page that has no file yet
    await mkdir(path.join(root, 'Loose'));
    await writeFile(path.join(root, 'Loose', 'Inner.md'), 'hi');
    await writeFile(path.join(root, '.hidden.md'), 'skip me');
    const list = await v.list();
    const ids = list.map((p) => p.id).sort();
    assert.deepEqual(ids, ['Loose', 'Loose/Inner', 'Projects', 'Projects/Roadmap', 'Projects/Roadmap 2']);
    assert.equal(list.find((p) => p.id === 'Loose').exists, false);
    assert.equal(list.find((p) => p.id === 'Projects/Roadmap').parent, 'Projects');

    // renaming a parent moves its folder too
    const renamed = await v.rename('Projects', 'Work');
    assert.equal(renamed, 'Work');
    assert.deepEqual((await readdir(root)).filter((n) => !n.startsWith('.')).sort(), ['Loose', 'Work', 'Work.md']);
    assert.equal((await v.read('Work/Roadmap')).body, '- [ ] ship\n');
    assert.equal(await v.rename('Work', 'Work'), 'Work');

    await v.remove('Work');
    assert.deepEqual((await readdir(root)).filter((n) => !n.startsWith('.')), ['Loose']);

    assert.throws(() => v.abs('../escape'), /outside the notes folder/);
  } finally {
    await rm(root, { recursive: true, force: true });
  }
});

test('search index finds words in titles, tags and bodies', async () => {
  const root = await tmp();
  try {
    const db = openDb(path.join(root, 'index.sqlite'));
    db.rebuild([
      { id: 'Reading list', title: 'Reading list', tags: ['books'], body: 'The Design of Everyday Things', exists: true },
      { id: 'Journal/October 7', title: 'October 7', tags: ['journal'], body: 'Rainy morning. Sketched the layout.', exists: true },
      { id: 'Ghost', title: 'Ghost', tags: [], body: '', exists: false }
    ]);
    assert.equal(db.search('everyday')[0].id, 'Reading list');
    assert.equal(db.search('rain')[0].id, 'Journal/October 7');
    assert.equal(db.search('tag:journal')[0].id, 'Journal/October 7');
    assert.equal(db.search('in:read')[0].id, 'Reading list');
    assert.match(db.search('rain')[0].snip, /\u0001Rainy\u0002/);
    assert.equal(db.search('books')[0].id, 'Reading list');
    assert.deepEqual(db.search('   '), []);
    assert.deepEqual(db.search('"*)('), []);

    db.upsert({ id: 'Journal/October 7', title: 'October 7', tags: [], body: 'Sunny now.' });
    assert.equal(db.search('rain').length, 0);
    assert.equal(db.search('sunny').length, 1);

    db.remove('Journal');
    assert.equal(db.search('sunny').length, 0);
    db.close();
  } finally {
    await rm(root, { recursive: true, force: true });
  }
});

test('first run seeds an empty folder only', async () => {
  const root = await tmp();
  try {
    assert.equal(await isEmpty(root), true);
    await seedVault(root);
    assert.equal(await isEmpty(root), false);
    const v = new Vault(root);
    const page = await v.read('Getting started');
    assert.equal(page.meta.icon, 'sparkle');
    assert.match(page.body, /## First steps/);
  } finally {
    await rm(root, { recursive: true, force: true });
  }
});

test('watcher reports outside edits and ignores our own writes', async () => {
  const root = await tmp();
  try {
    const v = new Vault(root);
    const seen = [];
    const stop = v.watch((ids) => seen.push(...ids));
    await v.write('Mine', {}, 'by the app');
    await writeFile(path.join(root, 'Theirs.md'), 'by another editor');
    await new Promise((r) => setTimeout(r, 700));
    stop();
    assert.ok(seen.includes('Theirs'), `saw ${seen}`);
    assert.ok(!seen.includes('Mine'), `saw ${seen}`);
  } finally {
    await rm(root, { recursive: true, force: true });
  }
});

test('moving a page takes its sub-pages and images along', async () => {
  const root = await tmp();
  try {
    const v = new Vault(root);
    await v.create(null, 'Inbox');
    await v.create(null, 'Projects');
    const id = await v.create('Inbox', 'Trip');
    await v.create('Inbox/Trip', 'Packing');
    const pic = await v.saveImage(id, 'beach photo.png', Buffer.from('png'));
    assert.equal(pic, 'beach photo.png');
    await v.write(id, {}, `![](beach%20photo.png)\n\n![[beach photo.png]]\n`);
    const next = await v.move(id, 'Projects');
    assert.equal(next, 'Projects/Trip');
    assert.equal(await readFile(path.join(root, 'Projects', 'beach photo.png'), 'utf8'), 'png');
    assert.equal((await v.read('Projects/Trip/Packing')).exists, true);
    assert.equal((await v.read(next)).body, '![](beach%20photo.png)\n\n![[beach photo.png]]\n');
    assert.equal(v.imagePath(next, 'beach photo.png'), path.join(root, 'Projects', 'beach photo.png'));
    assert.equal(v.imagePath(next, '../../etc/passwd'), null);
    assert.equal(v.imagePath(next, 'https://example.com/a.png'), null);
    // back to the top level, where a clash renames the image and rewrites the link
    await writeFile(path.join(root, 'beach photo.png'), 'other');
    const top = await v.move(next, null);
    assert.equal(top, 'Trip');
    assert.match((await v.read(top)).body, /^!\[\]\(beach%20photo%202\.png\)\n\n!\[\[beach photo 2\.png\]\]/);
    await assert.rejects(v.move('Projects', 'Projects'), /inside itself/);
  } finally {
    await rm(root, { recursive: true, force: true });
  }
});

test('links are rewritten after a move and listed as backlinks', () => {
  const { rewriteLinks, backlinks, findLinks } = require('../electron/links.cjs');
  const page = (id, body = '') => ({ id, title: id.split('/').pop(), parent: null, exists: true, body });
  const before = [page('Plan'), page('Projects'), page('Notes', 'See [[Plan]] and [[Plan#Goals|goals]].\n```\n[[Plan]]\n```\n![[Plan.png]]')];
  const after = [page('Projects/Plan'), page('Projects'), page('Notes', before[2].body), page('Other/Plan')];
  const moved = (id) => (id === 'Plan' ? 'Projects/Plan' : null);
  assert.equal(
    rewriteLinks(before[2].body, before, after, moved),
    'See [[Projects/Plan]] and [[Projects/Plan#Goals|goals]].\n```\n[[Plan]]\n```\n![[Plan.png]]'
  );
  assert.equal(rewriteLinks('nothing here', before, after, moved), null);
  assert.equal(findLinks(before[2].body).length, 2);
  const bl = backlinks('Plan', before);
  assert.deepEqual(bl.map((b) => [b.id, b.snip]), [['Notes', 'See Plan and goals.']]);
});

test('trash keeps deleted pages and puts them back', async () => {
  const root = await tmp();
  try {
    const sent = [];
    const v = new Vault(root, { trash: async (p) => { sent.push(path.basename(p)); await rm(p, { recursive: true, force: true }); } });
    await v.create(null, 'Projects', { icon: 'compass' });
    await v.create('Projects', 'Plan');
    await v.write('Projects/Plan', {}, 'the plan\n');
    assert.equal(await v.remove('Nope'), null);
    const entry = await v.remove('Projects');
    assert.deepEqual((await v.list()).map((p) => p.id), []);
    const [t] = await v.listTrash();
    assert.equal(t.entry, entry);
    assert.equal(t.title, 'Projects');
    assert.equal(t.icon, 'compass');
    assert.equal(t.pages, 2);
    // the name was taken again meanwhile, so it comes back numbered
    await v.create(null, 'Projects');
    const back = await v.restore(entry);
    assert.equal(back, 'Projects 2');
    assert.equal((await v.read('Projects 2/Plan')).body, 'the plan\n');
    assert.deepEqual(await v.listTrash(), []);
    // purge hands entries to the system trash; old ones go on their own
    const e1 = await v.remove('Projects');
    await v.remove('Projects 2');
    await v.purge(e1);
    assert.deepEqual(sent, [e1]);
    assert.equal((await v.listTrash()).length, 1);
    await v.purgeOlderThan(30);
    assert.equal((await v.listTrash()).length, 1);
    await v.purge(null);
    assert.deepEqual(await v.listTrash(), []);
    await assert.rejects(v.restore('../../etc'), /Unknown trash item/);
  } finally {
    await rm(root, { recursive: true, force: true });
  }
});

test('version history: throttled copies, restore keeps the current text, follows renames', async () => {
  const root = await tmp();
  try {
    const v = new Vault(root);
    const id = await v.create(null, 'Plan');
    await v.write(id, {}, 'one\n');
    await v.write(id, {}, 'two\n'); // within 5 minutes of the first copy: no new version
    let versions = await v.listHistory(id);
    assert.equal(versions.length, 1);
    // pretend that copy is old, so the next save makes a new one
    const dir = path.join(root, '.notes', 'history', 'Plan');
    const old = versions[0] - 10 * 60 * 1000;
    await writeFile(path.join(dir, `${old}.md`), (await readFile(path.join(dir, `${versions[0]}.md`), 'utf8')));
    await rm(path.join(dir, `${versions[0]}.md`));
    await v.write(id, {}, 'three\n');
    versions = await v.listHistory(id);
    assert.equal(versions.length, 2);
    assert.equal((await v.readHistory(id, versions[0])).body, 'three\n');
    // restore the oldest: what's there now ("three") stays restorable
    await v.write(id, {}, 'four\n');
    await v.restoreHistory(id, old);
    assert.equal((await v.read(id)).body, '');
    const after = await v.listHistory(id);
    assert.ok((await Promise.all(after.map((t) => v.readHistory(id, t)))).some((x) => x.body === 'four\n'), 'the text before the restore was kept');
    // history moves with the page
    const next = await v.rename(id, 'Roadmap');
    assert.deepEqual(await v.listHistory(next), after);
    assert.deepEqual(await v.listHistory(id), []);
    await assert.rejects(v.readHistory(next, '../../x'), /Unknown version/);
    await assert.rejects(v.listHistory('../../etc').then((x) => { if (x.length) throw new Error('listed'); throw new Error('outside'); }), /outside/);
  } finally {
    await rm(root, { recursive: true, force: true });
  }
});

test('version history works for canvases: the file text comes back exactly, and it follows a rename', async () => {
  const root = await tmp();
  try {
    const v = new Vault(root);
    const id = await v.createCanvas(null, 'Map');
    const first = '{\n\t"nodes":[\n\t\t{"id":"aaaaaaaaaaaaaaaa","type":"text","text":"---\\nnot front matter","x":0,"y":0,"width":250,"height":60}\n\t],\n\t"edges":[]\n}';
    // making the canvas kept its empty state as the first version; age that so the next save makes a new one
    const dir = path.join(root, '.notes', 'history', id);
    const [t0] = await v.listHistory(id);
    await writeFile(path.join(dir, `${t0 - 10 * 60 * 1000}.md`), await readFile(path.join(dir, `${t0}.md`), 'utf8'));
    await rm(path.join(dir, `${t0}.md`));
    await v.write(id, {}, first);
    const [ts] = await v.listHistory(id);
    assert.equal((await v.readHistory(id, ts)).body, first, 'the file text comes back as saved, not read as front matter');
    const second = '{\n\t"nodes":[],\n\t"edges":[]\n}';
    await v.write(id, {}, second.replace('[]', '[ ]')); // within the gap: no version of its own
    await v.restoreHistory(id, ts);
    assert.equal(await readFile(v.abs(id), 'utf8'), first, 'written back byte for byte, without front matter added');
    const kept = await v.listHistory(id);
    assert.ok((await Promise.all(kept.map((t) => v.readHistory(id, t)))).some((x) => x.body === second.replace('[]', '[ ]')), 'the canvas before the restore was kept');
    const next = await v.rename(id, 'Roadmap');
    assert.equal(next, 'Roadmap.canvas');
    assert.deepEqual(await v.listHistory(next), kept);
    assert.deepEqual(await v.listHistory(id), []);
  } finally {
    await rm(root, { recursive: true, force: true });
  }
});

test('duplicate: a page (with its sub-pages), a board and a canvas, next to the original', async () => {
  const root = await tmp();
  try {
    const v = new Vault(root);
    const id = await v.create(null, 'Plan', { icon: 'star' }, 'Hello\n');
    const child = await v.create(id, 'Child', {}, 'inside\n');
    const pic = await v.saveImage(id, 'pic.png', Buffer.from([1, 2, 3]));
    const copy = await v.duplicate(id);
    assert.equal(copy, 'Plan copy');
    assert.deepEqual(await readFile(v.abs(copy), 'utf8'), await readFile(v.abs(id), 'utf8'), 'the file is copied as it is');
    assert.equal((await v.read(`${copy}/Child`)).body, 'inside\n', 'sub-pages come along');
    assert.ok(v.imagePath(copy, pic) && (await readFile(v.imagePath(copy, pic))).length === 3, 'pictures (kept beside the page) are still found by the copy');
    // the copy is its own page
    await v.write(copy, {}, 'changed\n');
    assert.equal((await v.read(id)).body, 'Hello\n');
    assert.equal((await v.read(child)).body, 'inside\n');
    // again: a free name
    assert.equal(await v.duplicate(id), 'Plan copy 2');
    // the copy of a copy
    assert.equal(await v.duplicate(copy), 'Plan copy copy');
    // inside a parent: stays there
    assert.equal(await v.duplicate(child), `${id}/Child copy`);
    // a canvas keeps its text exactly
    const cv = await v.createCanvas(null, 'Map');
    const text = '{\n\t"nodes":[\n\t\t{"id":"aaaaaaaaaaaaaaaa","type":"text","text":"hi","x":0,"y":0,"width":250,"height":60}\n\t],\n\t"edges":[]\n}';
    await v.write(cv, {}, text);
    const cvCopy = await v.duplicate(cv);
    assert.equal(cvCopy, 'Map copy.canvas');
    assert.equal(await readFile(v.abs(cvCopy), 'utf8'), text);
    assert.equal((await v.listHistory(cvCopy)).length, 1, 'the copy starts its own history');
    // nothing to copy
    await assert.rejects(v.duplicate('Nope'), /no file to copy/);
  } finally {
    await rm(root, { recursive: true, force: true });
  }
});


test('a database record keeps its property values in front matter, and the list reports them', async () => {
  const root = await tmp();
  const v = new Vault(root);
  const db = await v.create(null, 'Tasks', { 'ink-database': 'basic' }, '%% ink-database\n{}\n%%\n');
  const rec = await v.create(db, 'Write', { status: 'Doing', due: '2026-03-01', owner: ['Ana', 'Ben'], done: 'true', 'due-date': '2026-04-02' });
  const pages = await v.list();
  const d = pages.find((p) => p.id === db), r = pages.find((p) => p.id === rec);
  assert.equal(d.db, true);
  assert.equal(r.db, undefined);
  assert.deepEqual(r.props, { status: 'Doing', due: '2026-03-01', owner: ['Ana', 'Ben'], done: 'true', 'due-date': '2026-04-02' });
  assert.equal(r.parent, 'Tasks');
  assert.equal(r.tags.length, 0); // page keys are not properties
  // a value change keeps every other key and the body
  const before = await v.read(rec);
  await v.write(rec, { ...before.meta, status: 'Done' }, 'Notes\n');
  const after = (await v.list()).find((p) => p.id === rec);
  assert.equal(after.props.status, 'Done');
  assert.deepEqual(after.props.owner, ['Ana', 'Ben']);
  assert.equal((await v.read(rec)).body, 'Notes\n');
  await rm(root, { recursive: true, force: true });
});

test('property values are found as words and by key:value, with the same operators as tag: and in:', async () => {
  const dir = await tmp();
  const db = openDb(path.join(dir, 'i.sqlite'));
  db.upsert({ id: 'T/Write docs', title: 'Write docs', tags: ['work'], body: 'Some text', props: { status: 'Doing', points: '5', owner: ['Ana', 'Ben'], due: '2026-03-01' } });
  db.upsert({ id: 'T/Ship it', title: 'Ship it', tags: [], body: 'Release', props: { status: 'In progress', points: '12', owner: ['Ben'] } });
  db.upsert({ id: 'T/Plan', title: 'Plan', tags: [], body: 'Roadmap', props: {} });
  const ids = (q) => db.search(q).map((r) => r.id).sort();
  assert.deepEqual(ids('Ana'), ['T/Write docs']); // a value, as a plain word
  assert.deepEqual(ids('status:doing'), ['T/Write docs']);
  assert.deepEqual(ids('status:do'), ['T/Write docs']); // like tag:, a prefix matches
  assert.deepEqual(ids('status:"In progress"'), ['T/Ship it']);
  assert.deepEqual(ids('owner:ben'), ['T/Ship it', 'T/Write docs']);
  assert.deepEqual(ids('owner:!ana'), ['T/Ship it']);
  assert.deepEqual(ids('points:>5'), ['T/Ship it']);
  assert.deepEqual(ids('points:<=5'), ['T/Write docs']);
  assert.deepEqual(ids('has:due'), ['T/Write docs']);
  assert.deepEqual(ids('owner:ben release'), ['T/Ship it']); // words narrow it too
  assert.deepEqual(ids('tag:work status:doing'), ['T/Write docs']);
  assert.deepEqual(ids('status:done'), []);
  assert.deepEqual(ids('nokey:value'), []); // not a property: searched as words, which match nothing
  assert.match(db.search('status:doing')[0].snip, /status: doing/);
  // a changed value replaces the old one; a removed page leaves no values behind
  db.upsert({ id: 'T/Write docs', title: 'Write docs', tags: [], body: '', props: { status: 'Done' } });
  assert.deepEqual(ids('status:doing'), []);
  assert.deepEqual(ids('status:done'), ['T/Write docs']);
  db.remove('T');
  assert.deepEqual(ids('status:done'), []);
  db.close();
  await rm(dir, { recursive: true, force: true });
});

test('an index made before properties were indexed is started again', async () => {
  const dir = await tmp();
  const file = path.join(dir, 'old.sqlite');
  const { DatabaseSync } = require('node:sqlite');
  const old = new DatabaseSync(file);
  old.exec("CREATE VIRTUAL TABLE notes USING fts5(id UNINDEXED, title, tags, body, tokenize = 'unicode61 remove_diacritics 2')");
  old.exec("INSERT INTO notes (id, title, tags, body) VALUES ('A', 'Old', '', 'old words')");
  old.close();
  const db = openDb(file);
  assert.deepEqual(db.search('old'), []); // emptied; the app rebuilds it on launch
  db.rebuild([{ id: 'A', title: 'Old', tags: [], body: 'old words', exists: true, props: { status: 'Done' } }]);
  assert.deepEqual(db.search('status:done').map((r) => r.id), ['A']);
  db.close();
  await rm(dir, { recursive: true, force: true });
});

test('links in property values and relation properties are links', () => {
  const links = require('../electron/links.cjs');
  const schema = '%% ink-database\n{"properties":[{"key":"after","name":"After","type":"relation"},{"key":"ref","name":"Ref","type":"text"}],"views":[]}\n%%\n';
  const pages = [
    { id: 'Tasks', title: 'Tasks', exists: true, parent: null, body: schema, props: {} },
    { id: 'Tasks/A', title: 'A', exists: true, parent: 'Tasks', body: '', props: { after: ['B'], ref: 'see [[Spec]]' } },
    { id: 'Tasks/B', title: 'B', exists: true, parent: 'Tasks', body: '', props: {} },
    { id: 'Spec', title: 'Spec', exists: true, parent: null, body: '', props: {} }
  ];
  const g = links.graph(pages);
  assert.ok(g.edges.some(([a, b]) => a === 'Tasks/A' && b === 'Spec'), 'link in a property value');
  assert.ok(g.edges.some(([a, b]) => a === 'Tasks/A' && b === 'Tasks/B'), 'relation');
  assert.deepEqual(links.backlinks('Spec', pages).map((b) => b.id), ['Tasks/A']);
  assert.deepEqual(links.backlinks('Tasks/B', pages).map((b) => [b.id, b.snip]), [['Tasks/A', 'After']]);
  const after = pages.map((p) => (p.id === 'Spec' ? { ...p, id: 'Specs', title: 'Specs' } : p));
  const patch = links.rewriteProps(pages[1].props, pages, after, (id) => (id === 'Spec' ? 'Specs' : null));
  assert.deepEqual(patch, { ref: 'see [[Specs]]' });
  assert.equal(links.rewriteProps({ after: ['B'] }, pages, after, () => null), null);
});

test('the watcher reports changes made outside, also after the app has saved and moved things', async () => {
  const root = await tmp();
  const v = new Vault(root);
  await v.create(null, 'A', {}, 'a\n');
  await mkdir(path.join(root, 'Sub'));
  await writeFile(path.join(root, 'Sub', 'Inner.md'), 'inner\n');
  const seen = [];
  const stop = v.watch((ids) => seen.push(...ids));
  const sleep = (ms) => new Promise((r) => setTimeout(r, ms));
  const expectId = async (id, label) => {
    for (let i = 0; i < 30 && !seen.includes(id); i++) await sleep(100);
    assert.ok(seen.includes(id), `${label}: expected ${id}, saw ${JSON.stringify(seen)}`);
    seen.length = 0;
  };
  await sleep(300);
  await writeFile(path.join(root, 'Outside.md'), 'x');
  await expectId('Outside', 'a new file');
  await writeFile(path.join(root, 'Sub', 'Inner.md'), 'changed\n');
  await expectId('Sub/Inner', 'a file in a folder');
  // the app saves (which makes .notes/history): outside changes must still come through
  await sleep(1700); // past the "just written by us" window
  await v.write('A', {}, 'mine\n');
  await sleep(1700);
  seen.length = 0;
  await writeFile(path.join(root, 'Outside.md'), 'again');
  await expectId('Outside', 'after the app saved');
  // a folder made later is watched too
  await mkdir(path.join(root, 'Later'));
  await sleep(500);
  await writeFile(path.join(root, 'Later', 'New.md'), 'n');
  await expectId('Later/New', 'a folder created after the watch began');
  // a renamed folder reports under its new name
  await rm(path.join(root, 'Sub', 'Inner.md'));
  await sleep(300);
  seen.length = 0;
  await (await import('node:fs/promises')).rename(path.join(root, 'Later'), path.join(root, 'Moved'));
  await sleep(900);
  seen.length = 0;
  await writeFile(path.join(root, 'Moved', 'New.md'), 'edited');
  await expectId('Moved/New', 'a renamed folder');
  // own writes and dot folders stay quiet
  seen.length = 0;
  await sleep(1700);
  await v.write('A', {}, 'again\n');
  await sleep(900);
  assert.deepEqual(seen, [], 'our own write is not reported');
  stop();
  await rm(root, { recursive: true, force: true });
});