/* URL 参数驱动的视图状态（供截图与分享复现） */
/* ---- url params so views can be scripted / shared: ?expl=60&j1=20&cam=iso&xray=0 ---- */
(function(){
  const q = new URLSearchParams(location.search);
  if (q.has('expl')) { exp.value = q.get('expl'); setExpl(+exp.value/100);
    if (+exp.value) tog(false, true); }
  for (const id of JNAMES) {
    const k = id.toLowerCase();
    if (q.has(k)) { const el = document.getElementById('s'+id);
      el.value = q.get(k); el.dispatchEvent(new Event('input')); }
  }
  if (q.has('cam')) { const s = document.getElementById('cam'); s.value = q.get('cam'); s.dispatchEvent(new Event('change')); }
  if (q.has('az')) az = +q.get('az');
  if (q.has('po')) po = +q.get('po');
  if (q.has('rd')) rd = +q.get('rd');
  if (q.has('tx')) tx = +q.get('tx');
  if (q.has('ty')) ty = +q.get('ty');
  if (q.has('tz')) tz = +q.get('tz');
  if (q.get('env') === '1') { const b = document.getElementById('bEnv');
    if (b && !b.classList.contains('on')) b.onclick(); }
  if (q.get('xray') === '0') { const b = document.getElementById('bXRay'); if (b && b.classList.contains('on')) b.onclick(); }
  if (q.get('xray') === '1') { const b = document.getElementById('bXRay'); if (b && !b.classList.contains('on')) b.onclick(); }
  if (q.get('wire') === '1') { const b = document.getElementById('bWire'); if (b && !b.classList.contains('on')) b.onclick(); }
  if (q.has('alpha')) {
    const a = +q.get('alpha');
    meshes.forEach(m => {
      if (m.userData.printed) {
        m.material.transparent = true;
        m.material.opacity = a;
        m.material.depthWrite = a > 0.8;
      }
    });
  }
  if (q.get('harn') === '0') { const b = document.getElementById('bHarn'); if (b && b.classList.contains('on')) b.onclick(); }
  /* 视图模式与工程图状态也要能用 URL 驱动：否则工程图/装配向导这两种模式（约占一半
     CSS 与 700 行 JS）没法用 headless 截图回归，改动只能靠人眼抽查。 */
  if (q.has('view')) {
    const t = document.querySelector('.tab[data-view="' + q.get('view') + '"]');
    if (t) t.click();
  }
  if (q.has('sheet')) {
    const b = document.querySelector('#sheetTabs .sheet-tab[data-sheet="' + q.get('sheet') + '"]');
    if (b) b.click();
  }
  if (q.has('theme')) {
    const b = document.querySelector('.sheet-btn[data-theme="' + q.get('theme') + '"]');
    if (b) b.click();
  }
  if (q.has('guide')) { const g = +q.get('guide'); if (isFinite(g)) renderGuideStep(g); }
  if (q.has('j6')) { const el = document.getElementById('sJ6');
    if (el) { el.value = q.get('j6'); el.dispatchEvent(new Event('input')); } }
  if (q.has('hide')) {
    const h = q.get('hide').split(',');
    meshes.forEach(m => {
      const nm = (m.userData && m.userData.name) || '';
      const cn = (m.userData && m.userData.cn) || '';
      if (h.some(k => nm.includes(k) || cn.includes(k))) {
        m.visible = false;
        if (m.chk) m.chk.checked = false;
      }
    });
  }
  requestRender();
})();