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));
const r = await p.evaluate(()=>{
  const m=document.querySelector('[data-shader-demo] .card-shader').paperShaderMount;
  const gl=m.gl;
  const before={ w:m.canvasElement.width, h:m.canvasElement.height, vp:[gl.getParameter(gl.VIEWPORT)[0],gl.getParameter(gl.VIEWPORT)[1],gl.getParameter(gl.VIEWPORT)[2],gl.getParameter(gl.VIEWPORT)[3]] };
  // принудительно resize + render
  m.handleResize?.();
  m.render(performance.now()); m.render(performance.now());
  const px=new Uint8Array(4); gl.readPixels(360,220,1,1,gl.RGBA,gl.UNSIGNED_BYTE,px);
  // макс по canvas
  const W=m.canvasElement.width,H=m.canvasElement.height; const buf=new Uint8Array(W*H*4); gl.readPixels(0,0,W,H,gl.RGBA,gl.UNSIGNED_BYTE,buf);
  let maxc=0; for(let i=0;i<buf.length;i+=4) maxc=Math.max(maxc,buf[i],buf[i+1],buf[i+2]);
  return { before, centerAfter:Array.from(px), maxChannel:maxc };
});
console.log(JSON.stringify(r,null,1));
await b.close();