/*!
 * Tectum
 * Copyright © 2026 Machiel Heinen.
 * Alle rechten voorbehouden. Gebruik uitsluitend met schriftelijke toestemming.
 * Zie LICENTIE.md.
 */
// Menubalk: menu = { label, items: [{ label, icon, keys, run, enabled(), checked() } | { sep: true } | { head }] }.
// Beschikbaarheid wordt bij het openen bepaald; is een menu open, dan opent hover het buurmenu.

window.Menubar = (() => {
  let root = null, menus = [], openIdx = -1;

  function itemHtml(it, mi, ii) {
    if (it.sep) return '<div class="mb-sep"></div>';
    if (it.head) return `<div class="mb-head">${it.head}</div>`;
    const off = it.enabled && !it.enabled();
    const on = it.checked && it.checked();
    return `<button type="button" class="mb-item${on ? ' checked' : ''}" data-mi="${mi}" data-ii="${ii}"${off ? ' disabled' : ''}>
      <span class="mb-ico">${on ? '<i class="bi bi-check2"></i>' : it.icon ? `<i class="bi bi-${it.icon}"></i>` : ''}</span>
      <span class="mb-label">${it.label}</span><span class="mb-keys">${it.keys || ''}</span></button>`;
  }

  function close() {
    if (openIdx < 0) return false;
    openIdx = -1;
    root.querySelectorAll('.mb-menu').forEach(m => m.classList.remove('open'));
    root.querySelectorAll('.mb-drop').forEach(d => { d.innerHTML = ''; });
    return true;
  }

  function openMenu(i) {
    close();
    openIdx = i;
    const wrap = root.querySelectorAll('.mb-menu')[i];
    wrap.classList.add('open');
    wrap.querySelector('.mb-drop').innerHTML = menus[i].items.map((it, ii) => itemHtml(it, i, ii)).join('');
  }

  function init(el, list) {
    root = el;
    menus = list;
    el.innerHTML = menus.map((m, i) => `<div class="mb-menu"><button type="button" class="mb-top" data-menu="${i}">${m.label}</button><div class="mb-drop" role="menu"></div></div>`).join('');
    el.addEventListener('click', (e) => {
      e.stopPropagation();
      const top = e.target.closest('[data-menu]');
      if (top) { const i = Number(top.dataset.menu); if (openIdx === i) close(); else openMenu(i); return; }
      const item = e.target.closest('.mb-item');
      if (!item || item.disabled) return;
      const it = menus[Number(item.dataset.mi)].items[Number(item.dataset.ii)];
      close();
      it.run();
    });
    el.addEventListener('mouseover', (e) => {
      const top = e.target.closest('[data-menu]');
      if (top && openIdx >= 0 && Number(top.dataset.menu) !== openIdx) openMenu(Number(top.dataset.menu));
    });
    document.addEventListener('click', close);
  }

  return { init, close };
})();