(function (root, factory) {
  const filterCommands = factory();
  if (typeof module === 'object' && module.exports) module.exports = filterCommands;
  if (root) root.filterCommands = filterCommands;
})(typeof globalThis !== 'undefined' ? globalThis : this, function () {
  function filterCommands(commands, filter) {
    const term = String(filter || '').toLowerCase();
    return commands.filter(command => command.name.toLowerCase().includes(term));
  }

  filterCommands.nextSelection = function nextSelection(current, key, count) {
    if (count < 1) return -1;
    if (key === 'ArrowDown') return (current + 1 + count) % count;
    if (key === 'ArrowUp') return (current - 1 + count) % count;
    return current;
  };

  filterCommands.createGlobalSearchController = function createGlobalSearchController(options) {
    const search = options.search;
    const onState = options.onState;
    const delay = options.delay === undefined ? 250 : options.delay;
    let timer = null;
    let generation = 0;

    return {
      setQuery(value) {
        const query = String(value || '').trim();
        generation += 1;
        const current = generation;
        if (timer !== null) clearTimeout(timer);
        if (query.length < 2) {
          onState({ status: 'idle', query, items: [] });
          return;
        }
        onState({ status: 'loading', query, items: [] });
        timer = setTimeout(async () => {
          try {
            const items = await search(query);
            if (current === generation) onState({ status: 'ready', query, items });
          } catch (error) {
            if (current === generation) onState({ status: 'error', query, items: [], error });
          }
        }, delay);
      },
    };
  };

  return filterCommands;
});