'use strict';
const calibrationPanel=document.createElement('section');
calibrationPanel.style.cssText='border:1px solid #ddd;border-radius:14px;padding:16px;margin:16px 0';
calibrationPanel.innerHTML='<h3 style="font-size:16px;margin:0 0 12px">Testar fim de curso · passos de 100 µs</h3><p class="notice">Observe o motor e recue ao atingir o limite. Não há detecção automática. Canais 5 e 6 acompanham juntos. Cada teste dura até 2 segundos.</p><label>Canal<select id="calChannel" style="max-width:220px">'+Array.from({length:8},(_,i)=>`<option value="${i}">Canal ${i}${i===5||i===6?' (par 5/6)':''}</option>`).join('')+'</select></label><p><output id="calPulse" style="font-size:24px">1500 µs</output></p><label><input id="calEnable" type="checkbox"> Habilitar testes de calibração</label><div style="display:flex;flex-wrap:wrap;gap:8px;margin:14px 0"><button id="calDown">−100 µs</button><button id="calTest">Testar posição</button><button id="calUp">+100 µs</button><button id="calStop">Parar sinais</button></div><div style="display:flex;flex-wrap:wrap;gap:8px"><button id="calMin">Marcar mínimo</button><button id="calCenter">Marcar centro</button><button id="calMax">Marcar máximo</button></div><p id="calMessage" role="status" class="notice">Escolha um canal. Marcar limites não envia movimento.</p>';
document.querySelector('details').insertBefore(calibrationPanel,document.getElementById('calibration'));
calibrationPanel.querySelectorAll('button').forEach(b=>b.style.cssText='font-size:13px;padding:11px 16px');
let calibrationPulse=1500, calibrationBusy=false;
const el=id=>document.getElementById(id);
function calButtons(){for(const id of ['calDown','calUp','calTest'])el(id).disabled=calibrationBusy||!el('calEnable').checked;}
async function calPost(route,data){const r=await fetch('/braco/'+route,{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify(data)});const d=await r.json();if(!r.ok)throw Error(d.erro);return d;}
async function testCalibration(delta){if(calibrationBusy||!el('calEnable').checked)return;calibrationBusy=true;calButtons();try{const next=calibrationPulse+delta;if(next<500||next>2500)throw Error('Faixa absoluta: 500–2500 µs');await BracoUI.stop();const result=await calPost('calibrar',{canal:Number(el('calChannel').value),pulso:next});calibrationPulse=next;el('calPulse').textContent=next+' µs';el('calMessage').textContent='Teste enviado: '+JSON.stringify(result.pulsos)+'. Sinal desliga em 2 s.';}catch(e){el('calMessage').textContent=e.message;}finally{calibrationBusy=false;calButtons();}}
el('calEnable').onchange=()=>{calButtons();if(!el('calEnable').checked)BracoUI.stop().catch(e=>el('calMessage').textContent=e.message);};
el('calChannel').onchange=()=>{el('calEnable').checked=false;calibrationPulse=BracoUI.calibration()?.[Number(el('calChannel').value)].centro??1500;el('calPulse').textContent=calibrationPulse+' µs';calButtons();BracoUI.stop().catch(e=>el('calMessage').textContent=e.message);};
el('calDown').onclick=()=>testCalibration(-100);el('calUp').onclick=()=>testCalibration(100);el('calTest').onclick=()=>testCalibration(0);
el('calStop').onclick=()=>{el('calEnable').checked=false;calButtons();BracoUI.stop().catch(e=>el('calMessage').textContent=e.message);};
for(const [id,key] of [['calMin','minimo'],['calCenter','centro'],['calMax','maximo']])el(id).onclick=async()=>{if(calibrationBusy)return;try{el('calEnable').checked=false;calButtons();await BracoUI.stop();BracoUI.markCalibration(Number(el('calChannel').value),key,calibrationPulse);el('calMessage').textContent='Marcado '+key+' = '+calibrationPulse+' µs. Clique Salvar calibração abaixo.';}catch(e){el('calMessage').textContent=e.message;}};
calButtons();