// Nova toolbar interactions
// - dropdown menus via [data-dropdown]
// - mobile menu toggle via [data-mobile-toggle] + #mobileMenu

(function () {
  function closest(el, selector) {
    while (el && el.nodeType === 1) {
      if (el.matches(selector)) return el;
      el = el.parentElement;
    }
    return null;
  }

  function canHover() {
    return window.matchMedia && window.matchMedia('(hover: hover) and (pointer: fine)').matches;
  }

  function setExpanded(toggleEl, expanded) {
    if (!toggleEl) return;
    toggleEl.setAttribute('aria-expanded', expanded ? 'true' : 'false');
  }

  function closeAllDropdowns(except) {
    var dropdowns = document.querySelectorAll('[data-dropdown]');
    dropdowns.forEach(function (dropdown) {
      if (except && dropdown === except) return;
      var menu = dropdown.querySelector('[data-dropdown-menu]');
      var toggle = dropdown.querySelector('[data-dropdown-toggle]');
      if (menu) menu.classList.add('hidden');
      setExpanded(toggle, false);

      // Close any submenus
      dropdown.querySelectorAll('[data-submenu-menu]').forEach(function (sm) {
        sm.classList.add('hidden');
      });
      dropdown.querySelectorAll('[data-submenu-toggle]').forEach(function (st) {
        setExpanded(st, false);
      });
    });
  }

  function openDropdown(dropdown) {
    var menu = dropdown.querySelector('[data-dropdown-menu]');
    var toggle = dropdown.querySelector('[data-dropdown-toggle]');
    if (!menu || !toggle) return;
    closeAllDropdowns(dropdown);
    menu.classList.remove('hidden');
    setExpanded(toggle, true);
  }

  function closeDropdown(dropdown) {
    var menu = dropdown.querySelector('[data-dropdown-menu]');
    var toggle = dropdown.querySelector('[data-dropdown-toggle]');
    if (menu) menu.classList.add('hidden');
    setExpanded(toggle, false);
  }

  function toggleDropdown(dropdown) {
    var menu = dropdown.querySelector('[data-dropdown-menu]');
    var toggle = dropdown.querySelector('[data-dropdown-toggle]');
    if (!menu || !toggle) return;

    var isOpen = !menu.classList.contains('hidden');
    closeAllDropdowns(isOpen ? null : dropdown);

    if (isOpen) {
      menu.classList.add('hidden');
      setExpanded(toggle, false);
    } else {
      menu.classList.remove('hidden');
      setExpanded(toggle, true);
    }
  }

  function getMobileMenu() {
    return document.getElementById('mobileMenu');
  }

  function closeMobileMenu() {
    var menu = getMobileMenu();
    if (!menu) return;
    menu.classList.add('hidden');
    var toggle = document.querySelector('[data-mobile-toggle]');
    setExpanded(toggle, false);
  }

  function toggleMobileMenu() {
    var menu = getMobileMenu();
    if (!menu) return;

    var isOpen = !menu.classList.contains('hidden');
    if (isOpen) {
      closeMobileMenu();
    } else {
      menu.classList.remove('hidden');
      var toggle = document.querySelector('[data-mobile-toggle]');
      setExpanded(toggle, true);
      closeAllDropdowns();
    }
  }

  document.addEventListener('click', function (e) {
    var dropdownToggle = closest(e.target, '[data-dropdown-toggle]');
    if (dropdownToggle) {
      e.preventDefault();
      var dropdown = closest(dropdownToggle, '[data-dropdown]');
      if (dropdown) toggleDropdown(dropdown);
      return;
    }

    var mobileToggle = closest(e.target, '[data-mobile-toggle]');
    if (mobileToggle) {
      e.preventDefault();
      toggleMobileMenu();
      return;
    }

    // Submenu toggle (touch/click fallback)
    var submenuToggle = closest(e.target, '[data-submenu-toggle]');
    if (submenuToggle) {
      if (canHover()) {
        // On desktop, submenu opens on hover via CSS.
        e.preventDefault();
        return;
      }

      e.preventDefault();
      var submenu = closest(submenuToggle, '[data-submenu]');
      if (!submenu) return;
      var menu = submenu.querySelector('[data-submenu-menu]');
      if (!menu) return;

      // Close other submenus within the same dropdown
      var dropdown = closest(submenuToggle, '[data-dropdown]');
      if (dropdown) {
        dropdown.querySelectorAll('[data-submenu-menu]').forEach(function (sm) {
          if (sm !== menu) sm.classList.add('hidden');
        });
        dropdown.querySelectorAll('[data-submenu-toggle]').forEach(function (st) {
          if (st !== submenuToggle) setExpanded(st, false);
        });
      }

      var isOpen = !menu.classList.contains('hidden');
      if (isOpen) {
        menu.classList.add('hidden');
        setExpanded(submenuToggle, false);
      } else {
        menu.classList.remove('hidden');
        setExpanded(submenuToggle, true);
      }

      return;
    }

    if (!closest(e.target, '[data-dropdown]')) {
      closeAllDropdowns();
    }
  });

  // Hover-to-open for desktop pointers
  var hoverCloseTimers = new WeakMap();
  function clearHoverTimer(dropdown) {
    var t = hoverCloseTimers.get(dropdown);
    if (t) window.clearTimeout(t);
    hoverCloseTimers.delete(dropdown);
  }

  function scheduleClose(dropdown) {
    clearHoverTimer(dropdown);
    hoverCloseTimers.set(
      dropdown,
      window.setTimeout(function () {
        closeDropdown(dropdown);
      }, 140)
    );
  }

  function bindHoverHandlers() {
    if (!canHover()) return;
    document.querySelectorAll('[data-dropdown]').forEach(function (dropdown) {
      dropdown.addEventListener('mouseenter', function () {
        clearHoverTimer(dropdown);
        openDropdown(dropdown);
      });
      dropdown.addEventListener('mouseleave', function () {
        scheduleClose(dropdown);
      });
    });
  }

  bindHoverHandlers();

  // Submenu hover handlers: ensure flyouts open on pointer devices
  if (canHover()) {
    document.querySelectorAll('[data-submenu]').forEach(function (group) {
      var toggle = group.querySelector('[data-submenu-toggle]');
      var menu = group.querySelector('[data-submenu-menu]');
      if (!menu) return;

      group.addEventListener('mouseenter', function () {
        menu.classList.remove('hidden');
        if (toggle) setExpanded(toggle, true);
      });
      group.addEventListener('mouseleave', function () {
        menu.classList.add('hidden');
        if (toggle) setExpanded(toggle, false);
      });
    });
  }

  document.addEventListener('keydown', function (e) {
    if (e.key !== 'Escape') return;
    closeAllDropdowns();
    closeMobileMenu();
  });

  window.addEventListener('resize', function () {
    if (window.matchMedia('(min-width: 768px)').matches) {
      closeMobileMenu();
    }
  });
})();