// src/hooks/queries/useWatchedItemsQuery.ts
import { useQuery } from '@tanstack/react-query';
import * as apiClient from '../../services/apiClient';
import type { MasterGroceryItem } from '../../types';

/**
 * Query hook for fetching the user's watched items.
 *
 * This hook is automatically disabled when the user is not authenticated,
 * and the cached data is invalidated when the user logs out.
 *
 * @param enabled - Whether the query should run (typically based on auth status)
 * @returns Query result with watched items data, loading state, and error state
 *
 * @example
 * ```tsx
 * const { data: watchedItems, isLoading, error } = useWatchedItemsQuery(!!user);
 * ```
 */
export const useWatchedItemsQuery = (enabled: boolean) => {
  return useQuery({
    queryKey: ['watched-items'],
    queryFn: async (): Promise<MasterGroceryItem[]> => {
      const response = await apiClient.fetchWatchedItems();

      if (!response.ok) {
        const error = await response.json().catch(() => ({
          message: `Request failed with status ${response.status}`,
        }));
        throw new Error(error.message || 'Failed to fetch watched items');
      }

      return response.json();
    },
    enabled,
    // Keep data fresh for 1 minute since users actively manage watched items
    staleTime: 1000 * 60,
  });
};