const { chromium } = require('@playwright/test');
(async () => {
  const b = await chromium.launch(); const p = await b.newPage();
  await p.addInitScript(() => {
    window.__GGS__ = { simId: 'test', baseUrl: '' };
    window.fetch = () => Promise.resolve({ ok:true, json:()=>Promise.resolve({}) }); // Heartbeat stummschalten
  });
  await p.goto('about:blank');
  await p.addScriptTag({ path: 'C:/xampp/htdocs/geograsim/App/assets/js/live-client.js' });
  const read = () => p.evaluate(() => window.__GGS_LIVE__ ? window.__GGS_LIVE__.activeMs : null);
  const set  = (v) => p.evaluate((v) => window.__GGS_LIVE__.setPaused(v), v);
  await p.waitForTimeout(300);
  const a1 = await read();
  await p.waitForTimeout(2500); const a2 = await read();     // sollte gestiegen sein
  await set(true);
  await p.waitForTimeout(2500); const a3 = await read();     // sollte eingefroren sein
  await set(false);
  await p.waitForTimeout(2500); const a4 = await read();     // sollte wieder steigen
  const grewNormal = (a2 - a1) > 1500;
  const frozen     = (a3 - a2) < 300;
  const resumed    = (a4 - a3) > 1500;
  console.log(JSON.stringify({ a1,a2,a3,a4, grewNormal, frozen, resumed,
    verdict: (grewNormal && frozen && resumed) ? 'PASS' : 'FAIL' }, null, 2));
  await b.close();
})();