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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 | 1x 8x 4x 4x 3x 3x 1x 1x | // src/hooks/queries/useApplicationStatsQuery.ts
import { useQuery } from '@tanstack/react-query';
import { getApplicationStats, AppStats } from '../../services/apiClient';
import { queryKeys } from '../../config/queryKeys';
/**
* Query hook for fetching application-wide statistics (admin feature).
*
* Returns app-wide counts for:
* - Flyers
* - Users
* - Flyer items
* - Stores
* - Pending corrections
* - Recipes
*
* Uses TanStack Query for automatic caching and refetching (ADR-0005 Phase 5).
*
* @returns TanStack Query result with AppStats data
*/
export const useApplicationStatsQuery = () => {
return useQuery({
queryKey: queryKeys.applicationStats(),
queryFn: async (): Promise<AppStats> => {
const response = await getApplicationStats();
if (!response.ok) {
const error = await response.json().catch(() => ({
message: `Request failed with status ${response.status}`,
}));
throw new Error(error.message || 'Failed to fetch application stats');
}
const json = await response.json();
// API returns { success: true, data: {...} }, extract the data object
return json.data ?? json;
},
staleTime: 1000 * 60 * 2, // 2 minutes - stats change moderately, not as frequently as activity log
});
};
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