// The Videos grid shows a clip once, however many posts carry it: the same
// file (or a Blossom hash's mirror), or the same words from the same person
// with a fresh upload, or the same file uploaded twice under two hashes (a
// note and a video event: one size to the byte) (Adam, 2026-10-22). A picture
// that won't load leaves the Images grid instead of a broken-picture glyph. And on a big screen with a mouse, a
// small clip opened in the pager is drawn at most 1.5× its own pixels, not
// blown up across the monitor. Run: bun tools/media-grid-dups-test.js
import puppeteer from './puppeteer.js';
import { cacheKeyFor } from '../src/wallet.js';
import { generateSecretKey, getPublicKey, finalizeEvent } from 'nostr-tools/pure';
import { buildHtml } from '../build.js';
import { existsSync } from 'node:fs';
const sleep = (ms) => new Promise((r) => setTimeout(r, ms));
let ok = true;
const check = (n, c, d = '') => { console.log(` ${c ? '✓' : '✗'} ${n}${d ? ' — ' + d : ''}`); if (!c) ok = false; };
const png = Bun.spawnSync(['ffmpeg', '-loglevel', 'error', '-f', 'lavfi', '-i', 'testsrc=size=320x180', '-frames:v', '1', '-f', 'image2', '-c:v', 'png', 'pipe:1']).stdout;
const clip = (name, size, t = 30) => {
  const f = '/tmp/coinos-vpager-' + name + (t === 30 ? '' : '-' + t) + '.webm';
  if (!existsSync(f)) Bun.spawnSync(['ffmpeg', '-y', '-loglevel', 'error', '-f', 'lavfi', '-i', 'testsrc=size=' + size + ':rate=10', '-t', String(t), '-c:v', 'libvpx', '-b:v', '100k', f]);
  return f;
};
// (the re-uploaded post's files differ from the reposted one's: one size from
// one person is taken for one file)
const CLIPS = { wide: clip('wide', '320x180'), again: clip('wide', '320x180', 25), other: clip('wide', '320x180', 26), tall: clip('tall', '180x320'), last: clip('last', '240x240') };
// the twice-uploaded clip: its own file (the ones above are all one file, so a
// size match would take them for one clip too)
const TWIN = '/tmp/coinos-vpager-twin.webm';
if (!existsSync(TWIN)) Bun.spawnSync(['ffmpeg', '-y', '-loglevel', 'error', '-f', 'lavfi', '-i', 'testsrc=size=320x180:rate=10', '-t', '20', '-c:v', 'libvpx', '-b:v', '100k', TWIN]);
const pic = (size) => Bun.spawnSync(['ffmpeg', '-loglevel', 'error', '-f', 'lavfi', '-i', 'testsrc=size=' + size, '-frames:v', '1', '-f', 'image2', '-c:v', 'png', 'pipe:1']).stdout;
const picWide = pic('640x360'), picTall = pic('360x640');
const SK = generateSecretKey(), AUTHOR = getPublicKey(SK);
const now = Math.floor(Date.now() / 1000);
const html = await buildHtml({ minify: true, pwa: false });
const server = Bun.serve({ port: 0, fetch: (req) => {
  const path = new URL(req.url).pathname;
  const m = /^\/(wide|again|other|tall|last|twina|twinb)\.webm$/.exec(path);
  if (m) {
    const f = Bun.file(CLIPS[m[1]] || TWIN), range = /^bytes=(\d+)-(\d*)$/.exec(req.headers.get('range') || '');
    if (!range) return new Response(f, { headers: { 'content-type': 'video/webm', 'accept-ranges': 'bytes' } });
    const a = +range[1], b = range[2] ? Math.min(+range[2], f.size - 1) : f.size - 1;
    return new Response(f.slice(a, b + 1), { status: 206, headers: { 'content-type': 'video/webm', 'accept-ranges': 'bytes', 'content-range': 'bytes ' + a + '-' + b + '/' + f.size, 'content-length': String(b - a + 1) } });
  }
  const pm = /^\/pic-(wide|tall)\.png$/.exec(path);
  if (pm) return new Response(pm[1] === 'wide' ? picWide : picTall, { headers: { 'content-type': 'image/png', 'access-control-allow-origin': '*' } });
  if (path === '/dead.webm' || path === '/deadpic.png') return new Response('gone', { status: 404 });
  if (path === '/still.png') return new Response(png, { headers: { 'content-type': 'image/png' } });
  if (path.startsWith('/punks') || path === '/verify-worker.js') return new Response(Bun.file('dist' + path));
  return new Response(html, { headers: { 'content-type': 'text/html' } });
} });
const U = (n) => server.url.origin + '/' + n + '.webm';
const post = (content, url, ago) => finalizeEvent({ kind: 1, created_at: now - ago, tags: [['imeta', 'url ' + url, 'image ' + server.url.origin + '/still.png', 'm video/webm']], content }, SK);
const seeded = [
  // one clip, three posts (a promo posted again and again)
  post('see you at the conference ' + U('wide'), U('wide'), 100),
  post('tickets going fast ' + U('wide'), U('wide'), 150),
  post('last call ' + U('wide') + '?x=1', U('wide') + '?x=1', 160),
  // the same words from the same person, uploaded afresh each time
  post('Transylvania lightning conference 2026 ' + U('again'), U('again'), 200),
  post('Transylvania lightning conference 2026 ' + U('other'), U('other'), 300),
  post('the last clip ' + U('last'), U('last'), 400),
  // one person's clip twice, as a note and as a video event, a fresh hash
  // each (the server stores it again): different words, same bytes
  finalizeEvent({ kind: 1, created_at: now - 410, tags: [['imeta', 'url ' + U('twina'), 'm video/webm', 'dim 320x180', 'size ' + Bun.file(TWIN).size]], content: '#goodmorning another beat ' + U('twina') }, SK),
  finalizeEvent({ kind: 22, created_at: now - 420, tags: [['imeta', 'url ' + U('twinb'), 'm video/webm', 'dim 320x180', 'size ' + Bun.file(TWIN).size], ['title', 'Random Beat']], content: 'Random Beat' }, SK),
  // a picture its host has deleted
  finalizeEvent({ kind: 1, created_at: now - 125, tags: [], content: 'gone now ' + server.url.origin + '/deadpic.png' }, SK),
  // pictures, one wide and one tall, the post saying nothing of their size
  finalizeEvent({ kind: 1, created_at: now - 120, tags: [], content: 'a wide view ' + server.url.origin + '/pic-wide.png' }, SK),
  finalizeEvent({ kind: 1, created_at: now - 130, tags: [], content: 'a tall view ' + server.url.origin + '/pic-tall.png' }, SK),
  // a tall one: out of a wide screen's grid until "All shapes"
  finalizeEvent({ kind: 1, created_at: now - 450, tags: [['imeta', 'url ' + U('tall'), 'm video/webm', 'dim 180x320']], content: 'standing up ' + U('tall') }, SK),
  // a clip its host has since deleted (it says so: 404) — no blank tile for it
  finalizeEvent({ kind: 1, created_at: now - 500, tags: [['imeta', 'url ' + U('dead'), 'm video/webm', 'dim 320x180']], content: 'deleted since ' + U('dead') }, SK),
];

const browser = await puppeteer.launch({ executablePath: '/usr/bin/google-chrome', headless: 'new', args: ['--no-sandbox', '--autoplay-policy=no-user-gesture-required'] });
const page = await browser.newPage();
await page.evaluateOnNewDocument(() => {
  const Real = window.WebSocket;
  window.WebSocket = function (...a) { const ws = new Real(...a); const send = ws.send.bind(ws); ws.send = (d) => { try { const m = JSON.parse(d); if (m[0] === 'REQ') { setTimeout(() => ws.dispatchEvent(new MessageEvent('message', { data: JSON.stringify(['EOSE', m[1]]) })), 0); return; } if (m[0] === 'EVENT') return; } catch {} return send(d); }; return ws; };
  window.WebSocket.prototype = Real.prototype; Object.assign(window.WebSocket, Real);
});
const errs = [];
page.on('pageerror', (e) => errs.push(String(e)));
const click = (t) => page.evaluate((x) => { const e = [...document.querySelectorAll('button')].find((n) => n.textContent.trim().toLowerCase().includes(x)); if (e) { e.click(); return true; } return false; }, t);
const waitText = async (x, ms = 25000) => { for (let i = 0; i < ms / 250; i++) { if ((await page.evaluate(() => document.body.innerText)).toLowerCase().includes(x)) return true; await sleep(250); } return false; };
const waitFor = async (fn, arg, ms = 10000) => { for (let i = 0; i < ms / 100; i++) { if (await page.evaluate(fn, arg)) return true; await sleep(100); } return false; };
try {
  await page.setViewport({ width: 1600, height: 900 });
  await page.goto(server.url.href, { waitUntil: 'domcontentloaded' });
  await page.evaluate(() => localStorage.setItem('btc-wallet-network', 'regtest'));
  await page.reload({ waitUntil: 'domcontentloaded' });
  await sleep(400);
  await click('create a new wallet'); await sleep(600);
  await page.waitForSelector('.words .w .t');
  const mn = (await page.$$eval('.words .w .t', (l) => l.map((e) => e.textContent.trim()))).join(' ');
  await click('skip verification');
  await waitText('receive', 20000);
  const base = cacheKeyFor(mn + '\n');
  await page.evaluate(([k, pk, ns]) => {
    localStorage.setItem(k + ':follows', JSON.stringify({ tags: [['p', pk]], c: '', at: Math.floor(Date.now() / 1000) }));
    localStorage.setItem(k + ':feedNotes', JSON.stringify(ns));
    localStorage.setItem(k + ':profiles', JSON.stringify({ [pk]: { name: 'Clip Poster', t: Date.now() } }));
    localStorage.setItem('btc-wallet-feed:' + k, 'following');
  }, [base, AUTHOR, seeded]);
  await page.reload({ waitUntil: 'domcontentloaded' });
  await waitText('receive', 20000);
  await page.evaluate(() => document.querySelector('.app-nav-button[aria-label="Feed"]').click());
  // (the feed paints its first rows: seven of the clips' posts are among them)
  check('the clips are in the feed', await waitFor(() => document.querySelectorAll('.notes-feed video.note-video').length >= 7, null, 20000), String(await page.evaluate(() => document.querySelectorAll('.notes-feed video.note-video').length)));
  await page.evaluate(() => document.querySelector('.media-mode[data-mode="videos"]').click());
  // a desktop-sized window starts on every shape (justified rows, the tall clip in)
  check('a desktop starts on every shape', await waitFor(() => !!document.querySelector('.media-grid.justified') && [...document.querySelectorAll('.media-grid .media-tile')].some((t) => t.getAttribute('data-key').endsWith('/tall.webm')), null, 15000));
  // the rest starts from the screen's way round: wide only
  await page.evaluate(() => { localStorage.setItem('coinos-clips-fit', 'fit'); document.querySelector('.media-mode[data-mode="images"]').click(); });
  await sleep(300);
  await page.evaluate(() => document.querySelector('.media-mode[data-mode="videos"]').click());
  await waitFor(() => document.querySelectorAll('.media-grid .media-tile').length >= 4, null, 15000);
  await waitFor(() => document.querySelectorAll('.media-grid .media-tile').length === 4, null, 8000);
  await sleep(1500);
  const tiles = await page.evaluate(() => document.querySelectorAll('.media-grid .media-tile').length);
  check('a wide screen lays the clips out one to a row, wide', await page.evaluate(() => { const g = document.querySelector('.media-grid'), t = g.querySelector('.media-tile').getBoundingClientRect(); return g.classList.contains('wide') && Math.abs(t.width / t.height - 16 / 9) < 0.05 && t.width > g.getBoundingClientRect().width * 0.95; }));
  check('one tile per clip: the reposted file once, the re-uploaded post once, the twice-uploaded file once, the other one, none for the deleted one', tiles === 4, tiles + ' tiles: ' + (await page.evaluate(() => [...document.querySelectorAll('.media-grid .media-tile')].map((t) => t.getAttribute('data-key').split('/').pop()).join(' '))));
  await page.evaluate(() => document.querySelector('.media-grid .media-tile').click());
  check('the pager opens', await waitFor(() => !!document.querySelector('.mp-slide.mp-cur video.mp-media'), null, 6000));
  check('the clip is drawn no bigger than 1.5× its pixels', await waitFor(() => { const v = document.querySelector('.mp-slide.mp-cur video.mp-media'); return v && v.videoWidth && v.getBoundingClientRect().width <= v.videoWidth * 1.5 + 1 && v.style.maxWidth; }, null, 8000),
    JSON.stringify(await page.evaluate(() => { const v = document.querySelector('.mp-slide.mp-cur video.mp-media'); return v && { vw: v.videoWidth, w: v.getBoundingClientRect().width, max: v.style.maxWidth }; })));
  // "All shapes", from the pager's top bar: the tall clip is there to flick to
  const tallShown = () => page.evaluate(() => { const s = [...document.querySelectorAll('.mp-slide')].find((x) => x.getAttribute('data-k').endsWith('/tall.webm')); return !!s && !s.closest('.mp-group').classList.contains('mp-off'); });
  check('in the pager, the tall clip is held out on a wide screen', !(await tallShown()));
  await page.evaluate(() => document.querySelector('.mp-fit').click());
  check('…and "All shapes" brings it in', await waitFor(() => { const s = [...document.querySelectorAll('.mp-slide')].find((x) => x.getAttribute('data-k').endsWith('/tall.webm')); return !!s && !s.closest('.mp-group').classList.contains('mp-off'); }, null, 3000));
  await page.keyboard.press('Escape');
  check('…which, being the desktop\'s default, is kept as no setting at all', await page.evaluate(() => localStorage.getItem('coinos-clips-fit') === null));
  check('the grid has it too', await waitFor(() => [...document.querySelectorAll('.media-grid .media-tile')].some((t) => t.getAttribute('data-key').endsWith('/tall.webm')), null, 5000));
  const rows = () => page.evaluate(() => {
    const g = document.querySelector('.media-grid'), gw = g.getBoundingClientRect().width;
    const ts = [...g.querySelectorAll('.media-tile')].map((t) => ({ k: t.getAttribute('data-key').split('/').pop(), r: t.getBoundingClientRect() }));
    const by = new Map(); for (const t of ts) { const y = Math.round(t.r.top); (by.get(y) || by.set(y, []).get(y)).push(t); }
    return { justified: g.classList.contains('justified'), gw, rows: [...by.values()].map((row) => ({ ks: row.map((t) => t.k), hs: row.map((t) => Math.round(t.r.height)), ars: row.map((t) => +(t.r.width / t.r.height).toFixed(2)), w: Math.round(row.reduce((a, t) => a + t.r.width, 0) + 3 * (row.length - 1)) })) };
  });
  await waitFor(() => { const t = [...document.querySelectorAll('.media-grid .media-tile')].find((x) => x.getAttribute('data-key').endsWith('/tall.webm')); return t && t.getBoundingClientRect().width < t.getBoundingClientRect().height; }, null, 5000);
  const R = await rows();
  const tallT = R.rows.flatMap((r) => r.ks.map((k, i) => ({ k, ar: r.ars[i] }))).find((x) => x.k === 'tall.webm');
  check('…in justified rows: every tile its clip\'s shape (the tall one tall, the wide ones wide)', R.justified && tallT && Math.abs(tallT.ar - 0.5625) < 0.03 && R.rows.flatMap((r) => r.ks.map((k, i) => ({ k, ar: r.ars[i] }))).filter((x) => x.k !== 'tall.webm' && x.k !== 'last.webm').every((x) => Math.abs(x.ar - 16 / 9) < 0.03), JSON.stringify(R));
  check('…one height across each row', R.rows.every((r) => Math.max(...r.hs) - Math.min(...r.hs) <= 1), JSON.stringify(R.rows.map((r) => r.hs)));
  // the Images grid: justified rows too, each picture in its own shape
  await page.evaluate(() => document.querySelector('.media-mode[data-mode="images"]').click());
  const picAr = (name) => page.evaluate((n) => { const t = [...document.querySelectorAll('.media-grid .media-tile')].find((x) => x.getAttribute('data-key').endsWith(n)); if (!t) return null; const r = t.getBoundingClientRect(); return +(r.width / r.height).toFixed(2); }, name);
  check('the Images grid lays pictures out in justified rows, each its own shape', await waitFor(() => { const g = document.querySelector('.media-grid.justified'); if (!g) return false; const ar = (n) => { const t = [...g.querySelectorAll('.media-tile')].find((x) => x.getAttribute('data-key').endsWith(n)); if (!t) return 0; const r = t.getBoundingClientRect(); return r.width / r.height; }; return Math.abs(ar('pic-wide.png') - 16 / 9) < 0.05 && Math.abs(ar('pic-tall.png') - 9 / 16) < 0.05; }, null, 10000),
    JSON.stringify({ wide: await picAr('pic-wide.png'), tall: await picAr('pic-tall.png') }));
  // the deleted picture: gone from the grid, and still gone after repaints
  // (they rewrite each tile's class list)
  await sleep(1500);
  await page.evaluate(() => { document.querySelector('.media-mode[data-mode="videos"]').click(); });
  await sleep(300);
  await page.evaluate(() => { document.querySelector('.media-mode[data-mode="images"]').click(); });
  await sleep(1500);
  check('a picture that won\'t load leaves the grid for good', await page.evaluate(() => {
    const ts = [...document.querySelectorAll('.media-grid .media-tile')];
    return ts.length >= 2 && !ts.some((t) => t.getAttribute('data-key').endsWith('deadpic.png') && getComputedStyle(t).display !== 'none');
  }), await page.evaluate(() => [...document.querySelectorAll('.media-grid .media-tile')].map((t) => t.getAttribute('data-key').split('/').pop() + (getComputedStyle(t).display === 'none' ? '(hidden)' : '')).join(' ')));
  check('no page errors', errs.length === 0, errs.slice(0, 2).join(' | '));
} finally {
  await browser.close();
  server.stop(true);
}
console.log(ok ? '\n✅ the grid shows each clip once; small clips stay sharp on a big screen' : '\n❌ failed');
process.exit(ok ? 0 : 1);