import { useCallback } from 'react';
import { useUserState } from '@/state/useUserState';

type PinnedFile = { path: string; name: string; pinnedAt: number };

export const usePinnedFiles = () => {
  const [pinned, setPinned] = useUserState<PinnedFile[]>('pinnedFiles', []);

  const togglePin = useCallback(
    (path: string, name: string) => {
      setPinned((prev) => {
        const exists = prev.some((f) => f.path === path);
        if (exists) return prev.filter((f) => f.path !== path);
        return [{ path, name, pinnedAt: Date.now() }, ...prev];
      });
    },
    [setPinned],
  );

  const isPinned = useCallback((path: string) => pinned.some((f) => f.path === path), [pinned]);

  return { pinned, togglePin, isPinned };
};