// 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);