// A picture tapped on someone's profile page opens in the media pager over
// THEIR pictures — the posts of their timeline, in its order, nobody
// else's — and closing it after moving on lands the profile on that post.
// (It opened alone, in the lightbox, before: no pager on a profile.)
// Run: bun tools/profile-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';
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 = (size) => Bun.spawnSync(['ffmpeg', '-loglevel', 'error', '-f', 'lavfi', '-i', 'testsrc=size=' + size, '-frames:v', '1', '-f', 'image2', '-c:v', 'png', 'pipe:1']).stdout;
const PICS = { a1: png('400x300'), a2: png('300x400'), b: png('320x320'), d: png('360x240'), x: png('200x200') };

const SK = generateSecretKey(), AUTHOR = getPublicKey(SK), SK2 = generateSecretKey(), OTHER = getPublicKey(SK2);
const now = Math.floor(Date.now() / 1000);
const post = (content, ago, sk = SK) => 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;
  if (path.startsWith('/punks')) return new Response(Bun.file('dist' + path));
  const m = /^\/(a1|a2|b|d|x)\.png$/.exec(path);
  if (m) return new Response(PICS[m[1]], { headers: { 'content-type': 'image/png' } });
  return new Response(html, { headers: { 'content-type': 'text/html' } });
} });
const U = (n) => server.url.origin + '/' + n + '.png';
const seeded = [
  post('bob picture ' + U('x'), 50, SK2), // someone else's, newest in the feed: not in Alice's pager
  post('two pictures ' + U('a1') + ' ' + U('a2'), 100),
  post('one picture ' + U('b'), 200),
  post('only words here, nothing to look at', 300),
  post('a last picture ' + U('d'), 400),
  ...Array.from({ length: 12 }, (_, 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'] });
const page = await browser.newPage();
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; };
// the slide the pager rests on, by its picture
const curPic = () => page.evaluate(() => {
  const sc = document.querySelector('.mp-scroll'); if (!sc) return null;
  const s = [...sc.querySelectorAll('.mp-slide')].find((x) => { const r = x.getBoundingClientRect(); return Math.abs(r.top) < 4 && Math.abs(r.left) < 4; });
  return s ? s.getAttribute('data-k').split('|')[1].split('/').pop() : 'between';
});
const resting = async (name) => waitFor((n) => { const sc = document.querySelector('.mp-scroll'); if (!sc) return false; const s = [...sc.querySelectorAll('.mp-slide')].find((x) => { const r = x.getBoundingClientRect(); return Math.abs(r.top) < 4 && Math.abs(r.left) < 4; }); return !!s && s.getAttribute('data-k').endsWith('/' + n); }, name, 4000);
const openPic = async (word) => {
  await page.evaluate((w) => { const r = [...document.querySelectorAll('.notes-feed [data-key]')].find((n) => n.textContent.includes(w)); r.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 i = r.querySelector('img.note-img').getBoundingClientRect(); return { x: i.x + i.width / 2, y: i.y + i.height / 2, y0: window.scrollY }; }, word);
  await page.mouse.click(at.x, at.y);
  await waitFor(() => !!document.querySelector('.media-pager'), null, 4000);
  return at.y0;
};
const tapPager = async () => { const at = await page.evaluate(() => { const sc = document.querySelector('.mp-scroll'); const s = [...sc.querySelectorAll('.mp-slide')].find((x) => { const r = x.getBoundingClientRect(); return Math.abs(r.top) < 4 && Math.abs(r.left) < 4; }) || sc.firstChild; const r = s.querySelector('img.mp-media').getBoundingClientRect(); return { x: r.x + r.width / 2, y: r.y + r.height / 2 }; }); await page.mouse.click(at.x, at.y); };
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, hasTouch: true });
  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, other]) => {
    localStorage.setItem(k + ':follows', JSON.stringify({ tags: [['p', pk], ['p', other]], c: '', at: Math.floor(Date.now() / 1000) }));
    localStorage.setItem(k + ':feedNotes', JSON.stringify(ns));
    localStorage.setItem(k + ':profiles', JSON.stringify({ [pk]: { name: 'Picture Poster', about: 'alice bio here', t: Date.now() }, [other]: { name: 'Bob Poster', t: Date.now() } }));
    localStorage.setItem('btc-wallet-feed:' + k, 'following');
  }, [base, AUTHOR, seeded, OTHER]);
  await page.reload({ waitUntil: 'domcontentloaded' });
  await waitText('receive', 20000);
  await page.evaluate(() => document.querySelector('.app-nav-button[aria-label="Feed"]').click());
  check('the pictures are in the feed', await waitFor(() => document.querySelectorAll('.notes-feed img.note-img').length >= 4, null, 20000));

  console.log('\n[a picture on a profile page]');
  // Alice's profile, from her face on a feed row
  await page.evaluate(() => { const r = [...document.querySelectorAll('.notes-feed .note-avatar')].find((n) => n.closest('[data-key]')?.innerText.includes('one picture')); r.scrollIntoView({ block: 'center' }); });
  await sleep(300);
  const face = await page.evaluate(() => { const r = [...document.querySelectorAll('.notes-feed .note-avatar')].find((n) => n.closest('[data-key]')?.innerText.includes('one picture')).getBoundingClientRect(); return { x: r.x + r.width / 2, y: r.y + r.height / 2 }; });
  await page.mouse.click(face.x, face.y);
  check('her profile opens, with her posts', await waitText('alice bio here', 8000) && await waitFor(() => [...document.querySelectorAll('.notes-feed [data-key]')].some((r) => r.innerText.includes('two pictures')), null, 8000));
  check('…and not Bob\'s', !(await page.evaluate(() => document.body.innerText.includes('bob picture'))));
  await openPic('two pictures');
  check('her picture opens in the pager, on itself', await resting('a1.png'), await curPic());
  const keys = await page.evaluate(() => [...document.querySelectorAll('.mp-slide')].map((s) => s.getAttribute('data-k').split('/').pop()));
  check('the pager holds her pictures only, in her timeline\'s order', JSON.stringify(keys) === JSON.stringify(['a1.png', 'a2.png', 'b.png', 'd.png']), JSON.stringify(keys));
  check('counter starts at the first post', await page.$eval('.mp-position', (e) => e.textContent) === '1 / 3');
  await page.keyboard.press('ArrowRight');
  check('right: the post\'s second picture', await resting('a2.png'), await curPic());
  check('sideways keeps the same post number', await page.$eval('.mp-position', (e) => e.textContent) === '1 / 3');
  await page.keyboard.press('ArrowDown');
  check('down: her next post with a picture', await resting('b.png'), await curPic());
  check('down advances by one post', await page.$eval('.mp-position', (e) => e.textContent) === '2 / 3');
  await page.keyboard.press('ArrowDown');
  check('down again: her last', await resting('d.png'), await curPic());
  await page.keyboard.press('ArrowDown'); await sleep(600);
  check('past her last wraps to her first post', await resting('a2.png'), await curPic());
  check('counter counts the first post once', await page.$eval('.mp-position', (e) => e.textContent) === '1 / 3');
  check('no loading slide', await page.$('.mp-tail') === null);
  await page.keyboard.press('ArrowUp'); await resting('d.png');
  check('up from first wraps to last', await curPic() === 'd.png');
  check('counter at the last post', await page.$eval('.mp-position', (e) => e.textContent) === '3 / 3');
  await page.touchscreen.touchStart(195, 650);
  for (let i = 1; i <= 8; i++) { await page.touchscreen.touchMove(195, 650 - 40 * i); await sleep(16); }
  await page.touchscreen.touchEnd();
  check('touch swipe wraps to first post', await resting('a2.png'), await curPic());
  await page.evaluate(() => document.querySelector('.media-pager').dispatchEvent(new WheelEvent('wheel', { deltaY: -3, deltaMode: 1, bubbles: true, cancelable: true })));
  check('wheel wraps back to last post', await resting('d.png'), await curPic());
  await page.keyboard.press('ArrowUp');
  check('up: her post before', await resting('b.png'), await curPic());
  await page.keyboard.press('Escape');
  check('Escape closes it', await waitFor(() => !document.querySelector('.media-pager') && !!document.querySelector('.notes-feed'), null, 3000));
  await sleep(900);
  check('…still on her profile', await page.evaluate(() => document.body.innerText.includes('alice bio here')));
  check('…landed on that post', (await rowTop('one picture')) !== null && (await rowTop('one picture')) < 120 && (await rowTop('one picture')) > -10, 'row top ' + (await rowTop('one picture')));
  await openPic('one picture');
  check('opened again on the picture it closed on', await resting('b.png'), await curPic());
  await tapPager(); await sleep(400);
  check('a tap on the picture that opened it shows its details', await page.evaluate(() => document.querySelector('.media-pager')?.classList.contains('show')));
  await tapPager(); await sleep(600);
  check('…and the next closes it', await waitFor(() => !document.querySelector('.media-pager'), null, 3000));
  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✅ a profile\'s pictures page through the pager' : '\n❌ failed');
process.exit(ok ? 0 : 1);