Feed: NIP-71 video events are posts, with their clips. Adam asked whether a feed could ask for just the posts with videos; for notes it can't (a relay filters by kind, author, time and one-letter tags, never by what a post says, and imeta isn't indexed), but NIP-71 gives clips kinds of their own. Of the 900 people he follows, 58 have posted 665 of them (191 kind 21, 33 kind 22, 170 kind 34235, 271 kind 34236 — divine.video's), 12 in the last fortnight next to 220 notes linking a video. Those kinds are now asked for with the notes (FEED_KINDS: feeds, profiles, topics, live), and drawn as posts: the title, the words, and the clip from its imeta — of the versions on offer, the one nearest 1080 on its short side (not the 4K original), never an HLS playlist, its url tag as a fallback — with the imeta's poster and size. A file whose name doesn't say it's a clip (divine.video's have no extension) plays when an imeta types it video/* or it's a video event's file, in a note as much as a video event. An addressable clip (34235/34236) shows once, not once per version. The clips are in the pager and the media grid's Videos (their captions: title and words, no file link); replies are NIP-22 comments, which threads already fetch. tools/video-events-test.js (the kinds asked for; a kind 21 as a post with its 720p version and poster, not "kind 21"; a 34236 with an extensionless file and its older version once; a note's imeta-typed file; the pager over all three with the caption).

Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01KPw21NEpWeTGu6swVASmBt

1 files changed, 139 insertions, 0 deletions

diff --git a/tools/video-events-test.js b/tools/video-events-test.js
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+// NIP-71 video events in the feed: a clip posted as itself (kind 21, 22, and
+// the addressable 34235/34236 divine.video publishes) is asked for with the
+// notes and drawn as a post — its title, its words, and the clip from its
+// imeta tag (the version nearest 1080, its poster), even a file whose name
+// doesn't say it's a video. An addressable clip shows once, not once per
+// version. A note linking such a file, typed video/* in its imeta, plays it
+// too. And the clips are in the pager.
+// Run: bun tools/video-events-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 CLIP = '/tmp/coinos-events-clip.webm';
+if (!existsSync(CLIP)) Bun.spawnSync(['ffmpeg', '-y', '-loglevel', 'error', '-f', 'lavfi', '-i', 'testsrc=size=180x320:rate=10', '-t', '10', '-c:v', 'libvpx', '-b:v', '100k', CLIP]);
+const PNG = Bun.spawnSync(['ffmpeg', '-loglevel', 'error', '-f', 'lavfi', '-i', 'testsrc=size=180x320', '-frames:v', '1', '-f', 'image2', '-c:v', 'png', 'pipe:1']).stdout;
+
+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;
+  if (path.startsWith('/v/')) return new Response(Bun.file(CLIP), { headers: { 'content-type': 'video/webm' } });
+  if (path.endsWith('.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 O = server.url.origin;
+const ev = (kind, content, tags, ago) => finalizeEvent({ kind, created_at: now - ago, tags, content }, SK);
+const EVENTS = [
+  // a normal video event: two versions on offer, a 4K and a 720p — the 720p is the one
+  ev(21, 'about the normal one', [['title', 'A normal clip'],
+    ['imeta', 'url ' + O + '/v/normal-4k.mp4', 'm video/mp4', 'dim 3840x2160'],
+    ['imeta', 'url ' + O + '/v/normal-720.mp4', 'm video/mp4', 'dim 1280x720', 'image ' + O + '/normal.png']], 100),
+  // divine.video's way: addressable, a file with no extension, a poster
+  ev(34236, '', [['d', 'vine-1'], ['title', 'Short one'], ['imeta', 'url ' + O + '/v/shortfile', 'm video/mp4', 'image ' + O + '/short.png', 'dim 180x320']], 200),
+  // ...and an older version of the same one
+  ev(34236, '', [['d', 'vine-1'], ['title', 'old version'], ['imeta', 'url ' + O + '/v/shortfile-old', 'm video/mp4']], 900),
+  // a note linking a file whose name doesn't say, typed in its imeta
+  ev(1, 'look at this ' + O + '/v/notefile', [['imeta', 'url ' + O + '/v/notefile', 'm video/mp4', 'dim 180x320']], 300),
+  ev(1, 'just words, nothing to watch here at all', [], 400),
+];
+
+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((evs) => {
+  const match = (f, e) => (!f.kinds || f.kinds.includes(e.kind)) && (!f.authors || f.authors.includes(e.pubkey)) && (!f.ids || f.ids.includes(e.id))
+    && (!f.until || e.created_at <= f.until) && (!f.since || e.created_at >= f.since) && !Object.keys(f).some((k) => k.startsWith('#'));
+  window.__kindsAsked = new Set();
+  class FakeWS {
+    constructor(url) { this.url = String(url); this.readyState = 0; setTimeout(() => { this.readyState = 1; this.onopen && this.onopen({}); }, 5); }
+    send(raw) {
+      const m = JSON.parse(raw);
+      const reply = (x) => setTimeout(() => this.readyState === 1 && this.onmessage && this.onmessage({ data: JSON.stringify(x) }), 5);
+      if (m[0] === 'REQ') {
+        for (const f of m.slice(2)) {
+          if (f.cache) continue;
+          if (f.authors) for (const k of f.kinds || []) window.__kindsAsked.add(k);
+          const hits = evs.filter((e) => match(f, e)).sort((a, b) => b.created_at - a.created_at);
+          for (const e of f.limit ? hits.slice(0, f.limit) : hits) reply(['EVENT', m[1], e]);
+        }
+        reply(['EOSE', m[1]]);
+      } else if (m[0] === 'EVENT') reply(['OK', m[1].id, true, '']);
+      else if (m[0] === 'COUNT') reply(['COUNT', m[1], { count: 0 }]);
+    }
+    close() { this.readyState = 3; this.onclose && this.onclose({ code: 1000 }); }
+    addEventListener(t, fn) { this['on' + t] = fn; }
+    removeEventListener() {}
+  }
+  FakeWS.CONNECTING = 0; FakeWS.OPEN = 1; FakeWS.CLOSING = 2; FakeWS.CLOSED = 3;
+  window.WebSocket = FakeWS;
+}, EVENTS);
+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; };
+const row = (w) => page.evaluate((x) => {
+  const rs = [...document.querySelectorAll('.notes-feed > [data-key]')].filter((n) => n.textContent.includes(x));
+  const r = rs[0]; const v = r && r.querySelector('video.note-video');
+  return r ? { n: rs.length, video: v ? (v.getAttribute('src') || '').replace(location.origin, '') : null, poster: v ? (v.getAttribute('poster') || '').replace(location.origin, '') : null, text: r.querySelector('.note-text')?.innerText.trim().slice(0, 120) } : null;
+}, w);
+
+try {
+  await page.setViewport({ width: 390, height: 844 });
+  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]) => {
+    localStorage.setItem(k + ':follows', JSON.stringify({ tags: [['p', pk]], c: '', at: Math.floor(Date.now() / 1000) }));
+    localStorage.setItem(k + ':profiles', JSON.stringify({ [pk]: { name: 'Clip Maker', t: Date.now() } }));
+    localStorage.setItem('btc-wallet-feed:' + k, 'following');
+  }, [base, AUTHOR]);
+  await page.reload({ waitUntil: 'domcontentloaded' });
+  await waitText('receive', 20000);
+  await page.evaluate(() => document.querySelector('.app-nav-button[aria-label="Feed"]').click());
+  check('the feed fills', await waitFor(() => [...document.querySelectorAll('.notes-feed > [data-key]')].some((n) => n.textContent.includes('just words')), null, 20000));
+  await sleep(1500);
+  check('the feed asks for video events with the notes', await page.evaluate(() => [21, 22, 34235, 34236].every((k) => window.__kindsAsked.has(k))), JSON.stringify(await page.evaluate(() => [...window.__kindsAsked])));
+
+  console.log('\n[a kind 21 video event]');
+  let r = await row('A normal clip');
+  check('it is a post: its title and its words', r && /A normal clip/.test(r.text) && /about the normal one/.test(r.text), JSON.stringify(r));
+  check('…with its clip — the version nearest 1080, not the 4K', r && r.video === '/v/normal-720.mp4', JSON.stringify(r));
+  check('…its poster from the imeta', r && r.poster === '/normal.png', JSON.stringify(r));
+  check('not shown as a kind this app can\'t draw', !(await page.evaluate(() => /kind 21|kind 34236/i.test(document.querySelector('.notes-feed').innerText))));
+
+  console.log('\n[a divine.video clip (34236): addressable, a file with no extension]');
+  r = await row('Short one');
+  check('it plays: the file is a clip though its name doesn\'t say', r && r.video === '/v/shortfile', JSON.stringify(r));
+  check('…with its poster', r && r.poster === '/short.png', JSON.stringify(r));
+  check('…once: its older version isn\'t shown as well', r && r.n === 1 && !(await row('old version')), JSON.stringify([r, await row('old version')]));
+
+  console.log('\n[a note linking such a file, typed in its imeta]');
+  r = await row('look at this');
+  check('it plays the file', r && r.video === '/v/notefile', JSON.stringify(r));
+
+  console.log('\n[the pager has them]');
+  await page.evaluate(() => { const r = [...document.querySelectorAll('.notes-feed > [data-key]')].find((n) => n.textContent.includes('A normal clip')); r.querySelector('video.note-video').scrollIntoView({ block: 'center' }); });
+  await sleep(500);
+  const at = await page.evaluate(() => { const r = [...document.querySelectorAll('.notes-feed > [data-key]')].find((n) => n.textContent.includes('A normal clip')); const b = r.querySelector('video.note-video').getBoundingClientRect(); return { x: b.x + b.width * 0.2, y: b.y + b.height * 0.3 }; });
+  await page.mouse.click(at.x, at.y);
+  check('a tap opens the pager', await waitFor(() => !!document.querySelector('.media-pager.videos'), null, 4000));
+  const slides = await page.evaluate(() => [...document.querySelectorAll('.mp-slide')].map((s) => s.getAttribute('data-k').split('|')[1].replace(location.origin, '')));
+  check('…over the three clips, in the feed\'s order', JSON.stringify(slides) === JSON.stringify(['/v/normal-720.mp4', '/v/shortfile', '/v/notefile']), JSON.stringify(slides));
+  check('…the caption, the title and words (no file link)', await page.evaluate(() => { const c = document.querySelector('.mp-slide .mp-caption'); return !!c && /A normal clip/.test(c.textContent) && !/\/v\//.test(c.textContent); }));
+  check('no page errors', errs.length === 0, errs.slice(0, 2).join(' | '));
+} finally { await browser.close(); server.stop(true); }
+console.log(ok ? '\n✅ video events are posts with their clips' : '\n❌ failed');
+process.exit(ok ? 0 : 1);