import puppeteer from 'puppeteer';
const b = await puppeteer.launch({ args:['--no-sandbox','--disable-setuid-sandbox','--use-gl=angle','--enable-unsafe-swiftshader','--ignore-gpu-blocklist'] });
const p = await b.newPage();
await p.setViewport({width:1100,height:1300});
await p.goto('http://10.200.201.3:4175/_lab/neu-card.html',{waitUntil:'load',timeout:60000});
await new Promise(r=>setTimeout(r,1200));
await p.evaluate(()=>document.querySelector('[data-shader-demo]').scrollIntoView({block:'center'}));
await new Promise(r=>setTimeout(r,600));
const snap = ()=>p.evaluate(()=>{
  const cv=document.querySelector('[data-shader-demo] canvas');
  const gl=cv.getContext('webgl2',{preserveDrawingBuffer:true})||cv.getContext('webgl',{preserveDrawingBuffer:true});
  const a=new Uint8Array(4*9); let k=0;
  for(const [x,y] of [[20,20],[100,80],[200,150],[50,180],[300,40]]){ gl.readPixels(x,y,1,1,gl.RGBA,gl.UNSIGNED_BYTE,a.subarray(k,k+4)); k+=4; }
  return Array.from(a).join(',');
});
const s1=await snap(); await new Promise(r=>setTimeout(r,700)); const s2=await snap();
console.log('frame1:', s1);
console.log('frame2:', s2);
console.log('MOVING:', s1!==s2);
await b.close();