/*!
 * Tectum
 * Copyright © 2026 Machiel Heinen.
 * Alle rechten voorbehouden. Gebruik uitsluitend met schriftelijke toestemming.
 * Zie LICENTIE.md.
 */
// Eigenschappenpaneel rechts: eigenschappen van de selectie, of van de woning als er niets geselecteerd is.
// Een sectie = { key, label, icon, groups() → [{ label, html }], wire(el) }; elke sectie krijgt een eigen element,
// zodat wire() alleen de eigen knoppen koppelt.

window.Inspector = (() => {
  const { icon, esc } = UI;
  const big = UI.btnOf('ins-btn ins-big');
  const small = UI.btnOf('ins-btn');
  const kv = (label, value, unit) =>
    `<div class="ins-kv"><span>${label}</span><b>${value}${unit ? `<small>${unit}</small>` : ''}</b></div>`;

  const PREF_KEY = 'tectum.inspector.open';
  let open;
  try { open = new Set(JSON.parse(localStorage.getItem(PREF_KEY) || 'null') || ['gevel']); } catch (e) { open = new Set(['gevel']); }
  const saveOpen = () => { try { localStorage.setItem(PREF_KEY, JSON.stringify([...open])); } catch (e) { } };

  // Een groepskop gelijk aan de sectienaam (bijv. Elektra › Elektra) vervalt.
  const groupsHtml = (groups, secLabel) => groups.filter(Boolean).map(g =>
    `<div class="ins-group${g.cls ? ' ' + g.cls : ''}">${g.label && g.label.toLowerCase() !== String(secLabel || '').toLowerCase() ? `<h3>${g.label}</h3>` : ''}<div class="ins-group-body">${g.html}</div></div>`).join('');

  // view = { crumbs: [{ label, attrs }], title, icon, sub, top: html, sections: [...], collapsible, onBack }
  function render(el, view) {
    const scrollKey = view.title + '|' + (view.sub || '');
    const keepScroll = el._insKey === scrollKey ? el.scrollTop : 0;
    el._insKey = scrollKey;
    el.innerHTML = `<div class="ins-head">
        ${view.crumbs && view.crumbs.length ? `<div class="ins-crumbs">${view.crumbs.map(c => `<button type="button" class="ins-crumb" ${c.attrs || ''}>${esc(c.label)}</button>`).join(icon('chevron-right'))}${icon('chevron-right')}</div>` : ''}
        <h2>${view.icon ? icon(view.icon) : ''}<span>${esc(view.title)}</span></h2>
        ${view.sub ? `<div class="ins-sub">${esc(view.sub)}</div>` : ''}
      </div>
      ${view.top ? `<div class="ins-top">${view.top}</div>` : ''}
      <div class="ins-sections"></div>`;
    const host = el.querySelector('.ins-sections');
    view.sections.filter(Boolean).forEach(sec => {
      const node = document.createElement('section');
      const collapsible = view.collapsible;
      const isOpen = !collapsible || open.has(sec.key);
      node.className = 'ins-section' + (collapsible ? ' ins-collapsible' : '') + (isOpen ? ' open' : '');
      node.innerHTML = (collapsible ? `<button type="button" class="ins-section-head" aria-expanded="${isOpen}">${sec.icon ? icon(sec.icon) : ''}<span>${sec.label}</span>${icon('chevron-down')}</button>` : '') +
        '<div class="ins-section-body"></div>';
      host.appendChild(node);
      // Een dichte sectie wordt pas opgebouwd (en gekoppeld) als hij opengaat.
      let built = false;
      const build = () => {
        if (built) return;
        built = true;
        node.querySelector('.ins-section-body').innerHTML = groupsHtml(sec.groups ? sec.groups() : [], sec.label);
        if (sec.wire) sec.wire(node);
      };
      if (isOpen) build();
      if (collapsible) node.querySelector('.ins-section-head').addEventListener('click', () => {
        const now = !node.classList.contains('open');
        if (now) build();
        node.classList.toggle('open', now);
        node.querySelector('.ins-section-head').setAttribute('aria-expanded', now);
        if (now) open.add(sec.key); else open.delete(sec.key);
        saveOpen();
      });
    });
    el.scrollTop = keepScroll;
  }

  return { big, small, kv, render };
})();