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// The video pager's slides near the reader hold their clip's first frame
// before the reader gets there: the server's (vmedia first.jpg — frame 0 at
// full size, any host), put on the slide once fetched and decoded; where the
// server has none, the next clip's frame is drawn here from its cached
// opening, and a clip beyond gets no picture (and stays out of the
// carousel) until a first frame comes — never the post's still first. The slide left behind keeps its frame for the swipe
// back. Run: bun tools/pager-first-frame-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 jpg = (c, size) => Bun.spawnSync(['ffmpeg', '-loglevel', 'error', '-f', 'lavfi', '-i', 'color=c=' + c + ':s=' + size, '-frames:v', '1', '-f', 'image2', '-c:v', 'mjpeg', 'pipe:1']).stdout;
const FIRST = { wide: jpg('orange', '1280x720'), tall: jpg('green', '720x1280') }; // (last: the server has none)
const clip = (name, size) => {
const f = '/tmp/coinos-vpager-' + name + '.webm';
if (!existsSync(f)) Bun.spawnSync(['ffmpeg', '-y', '-loglevel', 'error', '-f', 'lavfi', '-i', 'testsrc=size=' + size + ':rate=10', '-t', '30', '-c:v', 'libvpx', '-b:v', '100k', f]);
return Buffer.from(Bun.spawnSync(['cat', f]).stdout);
};
const CLIPS = { wide: clip('wide', '320x180'), tall: clip('tall', '180x320'), last: clip('last', '240x240') };
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 === '/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) => 'https://media.test/' + 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 = [post('a wide one ' + U('wide'), U('wide'), 100), post('a tall one ' + U('tall'), U('tall'), 200), post('the last clip ' + U('last'), U('last'), 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.setRequestInterception(true);
const asked = [];
page.on('request', (r) => {
const u = new URL(r.url());
if (u.pathname === '/vmedia/first.jpg') {
const name = /\/(\w+)\.webm$/.exec(u.searchParams.get('u') || '')?.[1];
asked.push('first:' + name);
if (!FIRST[name]) return r.respond({ status: 404, body: 'No picture', headers: { 'access-control-allow-origin': '*' } });
return r.respond({ status: 200, contentType: 'image/jpeg', body: FIRST[name], headers: { 'access-control-allow-origin': '*' } });
}
if (u.pathname.startsWith('/vmedia/')) { asked.push('vmedia:' + u.pathname); return r.respond({ status: 404, body: 'no' }); }
if (u.host === 'media.test') {
const name = /\/(\w+)\.webm$/.exec(u.pathname)[1], f = CLIPS[name];
const range = /^bytes=(\d+)-(\d*)$/.exec(r.headers().range || '');
const cors = { 'access-control-allow-origin': '*', 'accept-ranges': 'bytes', 'access-control-expose-headers': 'content-range, content-length' };
if (!range) return r.respond({ status: 200, contentType: 'video/webm', body: f, headers: cors });
const a = +range[1], b = range[2] ? Math.min(+range[2], f.length - 1) : f.length - 1;
return r.respond({ status: 206, contentType: 'video/webm', body: f.subarray(a, b + 1), headers: { ...cors, 'content-range': 'bytes ' + a + '-' + b + '/' + f.length } });
}
r.continue();
});
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; };
const kind = (p) => (!p ? 'none' : /\/vmedia\/first\.jpg/.test(p) ? 'server' : /^blob:/.test(p) ? 'drawn' : /still\.png/.test(p) ? 'still' : p);
const slides = () => page.evaluate(() => [...document.querySelectorAll('.mp-slide')].map((s) => { const v = s.querySelector('video.mp-media'); const r = s.getBoundingClientRect(); return { clip: s.getAttribute('data-k').split('/').pop().replace('.webm', ''), poster: v.getAttribute('poster'), playing: !v.paused, here: Math.abs(r.top) < 4 }; }))
.then((l) => l.map((x) => ({ ...x, poster: kind(x.poster) })));
const posterOf = async (clip) => (await slides()).find((x) => x.clip === clip)?.poster;
const waitPoster = (clip, k, ms = 8000) => waitFor(([c, k]) => { const s = [...document.querySelectorAll('.mp-slide')].find((x) => x.getAttribute('data-k').endsWith('/' + c + '.webm')); const p = s && s.querySelector('video.mp-media').getAttribute('poster'); return !!p && (k === 'server' ? /\/vmedia\/first\.jpg/.test(p) : k === 'drawn' ? /^blob:/.test(p) : /still\.png/.test(p)); }, [clip, k], ms);
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, 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());
check('the clips are in the feed', await waitFor(() => document.querySelectorAll('.notes-feed video.note-video').length >= 3, null, 20000));
await page.evaluate(() => { const r = [...document.querySelectorAll('.notes-feed [data-key]')].find((n) => n.textContent.includes('a wide one')); r.querySelector('video.note-video').scrollIntoView({ block: 'center' }); });
await sleep(600);
const at = await page.evaluate(() => { const r = [...document.querySelectorAll('.notes-feed [data-key]')].find((n) => n.textContent.includes('a wide one')); 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('the pager opens', await waitFor(() => !!document.querySelector('.media-pager.videos .mp-slide'), null, 4000));
check('the clip on screen plays', await waitFor(() => [...document.querySelectorAll('.mp-slide.mp-cur video.mp-media')].some((v) => !v.paused), null, 8000));
console.log('\n[the slides ahead hold their first frames]');
check('the next clip holds the server\'s first frame', await waitPoster('tall', 'server'), JSON.stringify(await slides()));
check('…the server was asked for it once', asked.filter((x) => x === 'first:tall').length === 1, asked.join(' '));
await sleep(1500);
check('the clip after, which the server has no frame for, gets no stand-in still', (await posterOf('last')) === 'none', JSON.stringify(await slides()));
check('…and waits out of the carousel', await page.evaluate(() => [...document.querySelectorAll('.mp-group')].find((g) => /last\.webm$/.test(g.querySelector('.mp-slide').getAttribute('data-k'))).classList.contains('mp-wait')));
check('…no thumbnail route was tried for any of them', !asked.some((x) => /thumb\.jpg/.test(x)), asked.join(' '));
await page.keyboard.press('ArrowDown');
check('on to the next: it plays', await waitFor(() => { const s = document.querySelector('.mp-slide.mp-cur'); return !!s && s.getAttribute('data-k').endsWith('/tall.webm') && !s.querySelector('video').paused; }, null, 6000), JSON.stringify(await slides()));
check('…the server\'s frame still under it', (await posterOf('tall')) === 'server', String(await posterOf('tall')));
check('the one left behind holds its first frame for the swipe back', await waitPoster('wide', 'server'), JSON.stringify(await slides()));
check('the next, now the clip ahead, has its frame drawn here ', await waitPoster('last', 'drawn', 12000), JSON.stringify(await slides()));
check('…the server asked only once more for it, not again and again', asked.filter((x) => x === 'first:last').length === 1, asked.join(' '));
await page.keyboard.press('ArrowUp');
check('back on the first: it plays again, its frame under it', await waitFor(() => { const s = document.querySelector('.mp-slide.mp-cur'); return !!s && s.getAttribute('data-k').endsWith('/wide.webm') && !s.querySelector('video').paused && /first\.jpg/.test(s.querySelector('video').getAttribute('poster') || ''); }, null, 6000), JSON.stringify(await slides()));
check('no page errors', errs.length === 0, errs.slice(0, 2).join(' | '));
} catch (e) { console.error(e); ok = false; } finally { await browser.close(); server.stop(true); }
console.log(ok ? '\n✅ the slides near the reader hold their clips\' first frames' : '\n❌ failed');
process.exit(ok ? 0 : 1);
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