const sleep = ms => new Promise(r=>setTimeout(r,ms));
const propsOf = el => { for (const k of Object.keys(el)) if (k.startsWith('__reactProps$')) return el[k]; return null; };
const fire = (el) => { let t = el; for (let i=0;i<8&&t;i++){const q=propsOf(t);
  if(q&&typeof q.onClick==='function'){q.onClick({target:t,currentTarget:t,stopPropagation(){},preventDefault(){},nativeEvent:{},button:0,detail:1});return true;} t=t.parentElement;} return false; };
const fsLayer = Array.from(document.querySelectorAll('fieldset')).find(x=>(x.querySelector('legend')||{}).textContent==='布线图层');
if(!fsLayer) return {err:'no layer fieldset'};
const state = () => Array.from(fsLayer.querySelectorAll('tr')).map(tr => ({
  txt: (tr.innerText||'').trim().slice(0,10),
  on: !!tr.querySelector('i[class*="active_"]')
}));
const before = state();
const hit = [];
for (const name of ['内层1','内层2']) {
  const tr = Array.from(fsLayer.querySelectorAll('tr')).find(t=>(t.innerText||'').trim()===name);
  if(!tr) { hit.push(name+':norow'); continue; }
  const cb = tr.querySelector('i[class*="checkbox_"]');
  if(!cb) { hit.push(name+':nocb'); continue; }
  hit.push(name+':'+fire(cb));
  await sleep(400);
}
return {before, hit, after: state()};