import { chromium } from 'playwright';
/* Walks the pinned section step by step: which step is active, does the text column fit
   inside the pinned area, and is the panel where it should be. */
const [,, url, prefix, width = '1440', height = '900'] = process.argv;
const browser = await chromium.launch();
const page = await browser.newPage({ viewport: { width: Number(width), height: Number(height) } });
await page.goto(url, { waitUntil: 'networkidle' });
const count = await page.evaluate(() => document.querySelectorAll('[data-trigger]').length);
const rows = [];
for (let i = 0; i < count; i++) {
  await page.evaluate((i) => {
    const t = document.querySelectorAll('[data-trigger]')[i];
    const r = t.getBoundingClientRect();
    window.scrollTo(0, window.scrollY + r.top + r.height / 2 - window.innerHeight / 2);
  }, i);
  await page.waitForTimeout(900);
  const info = await page.evaluate(() => {
    const steps = Array.from(document.querySelectorAll('[data-step]'));
    const active = steps.findIndex((s) => s.hasAttribute('data-active'));
    const sticky = document.querySelector('.how__sticky').getBoundingClientRect();
    const text = document.querySelector('.how__text');
    const first = text.getBoundingClientRect();
    const last = steps[steps.length - 1].getBoundingClientRect();
    const fig = document.querySelector('[data-figure][data-active]');
    const f = fig ? fig.getBoundingClientRect() : null;
    const svg = fig ? fig.querySelector('svg').getBoundingClientRect() : null;
    return {
      active,
      textTop: Math.round(first.top - sticky.top),
      spaceBelowList: Math.round(sticky.bottom - last.bottom),
      panel: f ? `${Math.round(f.width)}x${Math.round(f.height)}` : null,
      drawing: svg ? `${Math.round(svg.width)}x${Math.round(svg.height)}` : null,
      panelInside: f ? (f.top >= sticky.top - 1 && f.bottom <= sticky.bottom + 1) : null,
    };
  });
  rows.push({ step: i, ...info });
  await page.screenshot({ path: `${prefix}-${i}.png` });
}
console.table(rows);
await browser.close();