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:1280,height:1200});
const errs=[]; p.on('console',m=>{if(m.type()==='error')errs.push(m.text())}); p.on('pageerror',e=>errs.push('PE '+e.message));
await p.goto('http://10.200.201.3:4175/_lab/neu-card.html',{waitUntil:'load',timeout:60000});
await new Promise(r=>setTimeout(r,1000));
await p.evaluate(()=>document.querySelector('[data-shader-demo]').scrollIntoView({block:'center'}));
await new Promise(r=>setTimeout(r,500));
async function probe(key){
  if(key){ await p.click(`[data-shader-switch="${key}"]`); await new Promise(r=>setTimeout(r,800)); }
  return await p.evaluate(()=>{
    const el=document.querySelector('[data-shader-demo]');
    const cv=el.querySelector('canvas');
    if(!cv) return {canvas:false};
    const gl=cv.getContext('webgl2')||cv.getContext('webgl');
    const px=new Uint8Array(4);
    // читаем угол (0,0) — там обычно цвет градиента
    gl.readPixels(2,2,1,1,gl.RGBA,gl.UNSIGNED_BYTE,px);
    return { canvas:true, w:cv.width, h:cv.height, corner:Array.from(px), key: el.dataset.shaderKey };
  });
}
console.log('mesh:', JSON.stringify(await probe()));
console.log('grain:', JSON.stringify(await probe('grain')));
console.log('voronoi:', JSON.stringify(await probe('voronoi')));
console.log('staticMesh:', JSON.stringify(await probe('staticMesh')));
console.log('errs:', errs);
await b.close();