/*** Resolves the next enabled action index for standard menu keyboard navigation. */
export function resolveNextMenuIndex(
  items: readonly { disabled?: boolean }[],
  currentIndex: number,
  key: string,
): number {
  const enabledIndexes = items.flatMap((item, index) => (item.disabled ? [] : [index]));
  if (enabledIndexes.length === 0) return -1;
  if (key === 'Home') return enabledIndexes.at(0) ?? -1;
  if (key === 'End') return enabledIndexes.at(-1) ?? -1;

  const activeEnabledIndex = enabledIndexes.indexOf(currentIndex);
  const nextEnabledIndex =
    activeEnabledIndex === -1
      ? 0
      : key === 'ArrowUp'
        ? (activeEnabledIndex - 1 + enabledIndexes.length) % enabledIndexes.length
        : (activeEnabledIndex + 1) % enabledIndexes.length;

  return enabledIndexes.at(nextEnabledIndex) ?? -1;
}