import {chromium} from 'playwright';
const url = process.argv[2] || 'http://localhost/s/stay';
const mode = process.argv[3] || 'idle';
const b = await chromium.launch({channel: 'chrome'});
const page = await b.newPage({viewport: {width: 1280, height: 900}});
const w4 = [];
page.on('console', (m) => { if (m.text().includes('[w4d]')) w4.push(m.text().slice(0, 80)); });
await page.goto(url, {waitUntil: 'domcontentloaded'});
await page.waitForTimeout(5000);
await page.evaluate(() => document.querySelector('#itinerary').scrollIntoView({block: 'center'}));
await page.waitForTimeout(9000);   // scrollIntoView 쿨타임 7초를 넘긴다
const setup = await page.evaluate(() => {
  const rail = document.querySelector('#itinerary .slider-viewport');
  window.__rail = rail;
  window.__pos = () => {
    const c = rail.firstElementChild;
    let m = 0; try { m = new DOMMatrix(getComputedStyle(c).transform).m41; } catch {}
    return Math.round(rail.scrollLeft + m);
  };
  const r = rail.getBoundingClientRect();
  return {pos: window.__pos(), rect: {top: Math.round(r.top), h: Math.round(r.height)}, vh: innerHeight};
});
if (mode === 'wheel') { await page.mouse.move(640, 450); await page.mouse.wheel(0, 200); }
const marks = [];
for (let i = 1; i <= 16; i++) {
  await page.waitForTimeout(1000);
  marks.push(await page.evaluate((p0) => window.__pos() - p0, setup.pos));
}
console.log(mode, JSON.stringify(setup), marks.join(' '));
console.log(w4.join(' | '));
await b.close();