const { chromium } = require('@playwright/test');
(async () => {
  const browser = await chromium.launch();
  const page = await browser.newPage();
  const r = await page.request.get('https://geograsim.at/teacher.html');
  const html = await r.text();

  // 1) Static tab-bar markup
  const tb = html.indexOf('id="tab-bar"');
  console.log('--- #tab-bar markup ---');
  console.log(tb >= 0 ? html.slice(tb - 40, tb + 700) : 'tab-bar id NOT found');

  // 2) Extract _liveQualityBar function body and run it in isolation
  const start = html.indexOf('function _liveQualityBar');
  // find matching braces
  let i = html.indexOf('{', start), depth = 0, end = -1;
  for (; i < html.length; i++) {
    if (html[i] === '{') depth++;
    else if (html[i] === '}') { depth--; if (depth === 0) { end = i + 1; break; } }
  }
  const fnSrc = html.slice(start, end);
  const fn = new Function(fnSrc + '\nreturn _liveQualityBar;')();
  const sample = fn(8, 2);
  console.log('\n--- _liveQualityBar(8,2) OUTPUT ---');
  console.log(sample);
  console.log('\ncontains "80":', String(sample).includes('80'));

  await browser.close();
})();