// A clip tapped in the feed opens in the media pager, over the feed's clips
// (every shape, a post's own first), carrying on from where it was. The
// pager takes the whole screen; the screen isn't turned for a wide clip.
// Each clip has a seek bar to drag; a tap pauses (and shows the details),
// another plays on. Leaving full screen leaves the pager.
// Run: bun tools/feed-video-pager-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 = (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 f;
};
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 post = (content, ago) => finalizeEvent({ kind: 1, created_at: now - ago, tags: [], content }, SK);
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|tall|last)\.webm$/.exec(path);
  if (m) return new Response(Bun.file(CLIPS[m[1]]), { headers: { 'content-type': 'video/webm' } });
  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 seeded = [
  post('a wide one ' + U('wide'), 100),
  post('a tall one ' + U('tall'), 200),
  post('only words here, nothing to watch', 300),
  post('the last clip ' + U('last'), 400),
  ...Array.from({ length: 10 }, (_, i) => post('filler ' + i + ' ' + 'lorem ipsum dolor sit amet. '.repeat(5), 500 + i * 60)),
];

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);
  // a desktop can't turn: note what the page asks of the screen instead
  window.__orient = [];
  try {
    screen.orientation.lock = (o) => { window.__orient.push('lock:' + o); return Promise.resolve(); };
    screen.orientation.unlock = () => { window.__orient.push('unlock'); };
  } catch {}
});
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 CUR = () => { const sc = document.querySelector('.mp-scroll'); return sc && [...sc.querySelectorAll('.mp-slide')].find((x) => { const r = x.getBoundingClientRect(); return Math.abs(r.top) < 4 && Math.abs(r.left) < 4; }); };
const curClip = () => page.evaluate((cur) => { const s = eval(cur)(); return s ? s.getAttribute('data-k').split('|')[1].split('/').pop() : null; }, '(' + CUR + ')');
const resting = (name) => waitFor(([cur, n]) => { const s = eval(cur)(); return !!s && s.getAttribute('data-k').endsWith('/' + n); }, ['(' + CUR + ')', name], 5000);
const curVideo = () => page.evaluate((cur) => { const s = eval(cur)(); const v = s && s.querySelector('video.mp-media'); return v ? { t: v.currentTime, d: v.duration, paused: v.paused, src: !!v.getAttribute('src') } : null; }, '(' + CUR + ')');
const pagerState = () => page.evaluate(() => ({ open: !!document.querySelector('.media-pager.videos'), fs: document.fullscreenElement === document.documentElement, show: !!document.querySelector('.media-pager.show'), orient: window.__orient.slice() }));
const feedClip = (word) => page.evaluate((w) => { const r = [...document.querySelectorAll('.notes-feed [data-key]')].find((n) => n.textContent.includes(w)); const v = r && r.querySelector('video.note-video'); return v ? { t: v.currentTime, paused: v.paused } : null; }, word);
const openClip = async (word) => {
  await page.evaluate((w) => { const r = [...document.querySelectorAll('.notes-feed [data-key]')].find((n) => n.textContent.includes(w)); r.querySelector('video.note-video').scrollIntoView({ block: 'center' }); }, word);
  await sleep(400);
  const at = await page.evaluate((w) => { const r = [...document.querySelectorAll('.notes-feed [data-key]')].find((n) => n.textContent.includes(w)); const b = r.querySelector('video.note-video').getBoundingClientRect(); return { x: b.x + b.width * 0.2, y: b.y + b.height * 0.3 }; }, word);
  await page.mouse.click(at.x, at.y);
  await waitFor(() => !!document.querySelector('.media-pager.videos'), null, 4000);
};
const tapPager = async () => { await page.mouse.click(195, 300); await sleep(400); };
const rowTop = (word) => page.evaluate((w) => { const r = [...document.querySelectorAll('.notes-feed [data-key]')].find((n) => n.textContent.includes(w)); return r ? Math.round(r.getBoundingClientRect().top) : null; }, word);

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));

  console.log('\n[a tap opens the pager, full screen, where the clip was]');
  await page.evaluate(() => [...document.querySelectorAll('.notes-feed [data-key]')].find((n) => n.textContent.includes('a wide one')).querySelector('video.note-video').scrollIntoView({ block: 'center' }));
  for (let i = 0; i < 40; i++) { const c = await feedClip('a wide one'); if (c && c.t > 2) break; await sleep(250); }
  const before = (await feedClip('a wide one'))?.t || 0;
  check('the wide clip plays in the feed first', before > 1.5, 't=' + before.toFixed(2));
  await openClip('a wide one');
  let s = await pagerState();
  check('the tap opens the video pager', s.open);
  check('…on the clip tapped', await resting('wide.webm'), await curClip());
  check('…full screen', await waitFor(() => document.fullscreenElement === document.documentElement, null, 3000));
  check('…the screen not turned for a wide clip (bars; the reader turns the phone)', (await sleep(800), !(await pagerState()).orient.some((x) => x.startsWith('lock'))), JSON.stringify((await pagerState()).orient));
  check('the clip in the feed holds still underneath', (await feedClip('a wide one'))?.paused);
  await waitFor((cur) => { const v = eval(cur)()?.querySelector('video.mp-media'); return v && !v.paused && v.currentTime > 0; }, '(' + CUR + ')', 6000);
  let v = await curVideo();
  check('the clip plays on in the pager', v && !v.paused, JSON.stringify(v));
  check('…from where it was in the feed', v && v.t >= before - 0.3, `feed ${before.toFixed(2)}, pager ${v && v.t.toFixed(2)}`);

  console.log('\n[the seek bar]');
  check('the seek bar is up once the clip knows its length', await waitFor((cur) => !!eval(cur)()?.querySelector('.mp-seek.ready'), '(' + CUR + ')', 4000));
  // clear of the phone's gesture strip along the bottom, and of the side edges (back gesture)
  const geo = await page.evaluate((cur) => { const r = eval(cur)().querySelector('.mp-seek').getBoundingClientRect(); return { bottom: Math.round(innerHeight - r.bottom), left: Math.round(r.left), right: Math.round(innerWidth - r.right) }; }, '(' + CUR + ')');
  check('the seek bar sits clear of the bottom edge', geo.bottom >= 32, JSON.stringify(geo));
  check('…and in from the sides', geo.left >= 16 && geo.right >= 16, JSON.stringify(geo));
  if (process.env.SHOT) { await page.evaluate(() => document.querySelector('.media-pager').classList.add('show')); await sleep(300); await page.screenshot({ path: process.env.SHOT }); await page.evaluate(() => document.querySelector('.media-pager').classList.remove('show')); }
  const bar = await page.evaluate((cur) => { const r = eval(cur)().querySelector('.mp-seek').getBoundingClientRect(); return { x: r.x, y: r.y + r.height - 4, w: r.width }; }, '(' + CUR + ')');
  await page.mouse.move(bar.x + bar.w * 0.1, bar.y);
  await page.mouse.down();
  await page.mouse.move(bar.x + bar.w * 0.4, bar.y, { steps: 4 });
  check('dragging shows the time', await page.evaluate((cur) => { const b = eval(cur)().querySelector('.mp-seek'); return b.classList.contains('drag') && /\d:\d\d \/ 0:30/.test(b.textContent); }, '(' + CUR + ')'));
  await page.mouse.move(bar.x + bar.w * 0.7, bar.y, { steps: 4 });
  await page.mouse.up();
  await sleep(500);
  v = await curVideo();
  check('the drag scrubs the clip', v && Math.abs(v.t - 0.7 * v.d) < 1.5, `t=${v && v.t.toFixed(2)} of ${v && v.d}`);
  check('…and it plays on after', v && !v.paused);
  check('…without paging', await resting('wide.webm'), await curClip());
  check('…or bringing up the details', !(await pagerState()).show);

  console.log('\n[a tap pauses and shows the details; another plays on]');
  await tapPager();
  v = await curVideo(); s = await pagerState();
  check('a tap pauses', v && v.paused, JSON.stringify(v));
  check('…and shows the details', s.show);
  check('…with the author and the words', await page.evaluate((cur) => { const x = eval(cur)(); return /Clip Poster/.test(x.textContent) && /a wide one/.test(x.textContent); }, '(' + CUR + ')'));
  check('…clear of the seek bar', await page.evaluate((cur) => { const x = eval(cur)(); const bar = x.querySelector('.mp-seek-track').getBoundingClientRect(); return [...x.querySelectorAll('.mp-left > *, .mp-counts > *')].every((n) => n.getBoundingClientRect().bottom <= bar.top - 4); }, '(' + CUR + ')'));
  check('…still in the pager', s.open && s.fs);
  await tapPager();
  v = await curVideo(); s = await pagerState();
  check('another tap plays on', v && !v.paused, JSON.stringify(v));
  check('…and hides the details', !s.show);

  console.log('\n[the next clip: a swipe away, the screen free to turn]');
  await page.evaluate(() => { const sc = document.querySelector('.mp-scroll'); sc.scrollTo({ top: sc.clientHeight }); }); // what a swipe up does
  check('a swipe lands on the next clip (a tall one)', await resting('tall.webm'), await curClip());
  check('…playing', await waitFor((cur) => { const v = eval(cur)()?.querySelector('video.mp-media'); return v && !v.paused; }, '(' + CUR + ')', 6000));
  await page.keyboard.press('ArrowDown');
  check('down: the last clip, past a post with none', await resting('last.webm'), await curClip());
  await page.keyboard.press('ArrowUp');
  check('up: back to the tall one', await resting('tall.webm'), await curClip());

  console.log('\n[Escape: out of the pager and full screen, onto the post]');
  await page.keyboard.press('Escape');
  check('the pager closes', await waitFor(() => !document.querySelector('.media-pager') && !!document.querySelector('.notes-feed'), null, 3000));
  check('…and full screen with it', await waitFor(() => !document.fullscreenElement, null, 3000));
  await waitFor((w) => { const r = [...document.querySelectorAll('.notes-feed [data-key]')].find((n) => n.textContent.includes(w)); return r && r.getBoundingClientRect().top < 120 && r.getBoundingClientRect().top > -10; }, 'a tall one', 3000);
  check('…the feed on the tall clip\'s post', (await rowTop('a tall one')) !== null && (await rowTop('a tall one')) < 120 && (await rowTop('a tall one')) > -10, 'row top ' + (await rowTop('a tall one')));

  console.log('\n[leaving full screen another way (Back on a phone) leaves the pager]');
  await openClip('a tall one');
  check('the pager is open, full screen', await waitFor(() => !!document.querySelector('.media-pager.videos') && document.fullscreenElement === document.documentElement, null, 3000));
  check('a tall clip leaves the screen as it is', !(await pagerState()).orient.some((x) => x.startsWith('lock')), JSON.stringify((await pagerState()).orient));
  await page.evaluate(() => document.exitFullscreen());
  check('out of full screen, out of the pager', await waitFor(() => !document.querySelector('.media-pager') && !!document.querySelector('.notes-feed'), null, 3000));
  check('no page errors', errs.length === 0, errs.slice(0, 2).join(' | '));
} finally { await browser.close(); server.stop(true); }
console.log(ok ? '\n✅ feed clips page full screen, with a seek bar' : '\n❌ failed');
process.exit(ok ? 0 : 1);