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import { useQuery, useQueryClient } from '@tanstack/react-query';
import type {
PaginationParams,
PaginatedResult,
PaginationMeta,
} from '@/lib/pagination';
import { getPaginationState, PAGINATION_DEFAULTS } from '@/lib/pagination';
// Generic pagination hook configuration
export interface UsePaginationConfig<
T,
TParams extends PaginationParams = PaginationParams,
> {
queryKey: (params: TParams) => readonly unknown[];
queryFn: (params: TParams) => Promise<PaginatedResult<T>>;
initialParams?: Partial<TParams>;
staleTime?: number;
retry?: number;
}
// Generic pagination hook return type for load more functionality
export interface UsePaginationReturn<
T,
TParams extends PaginationParams = PaginationParams,
> {
// Data
data: T[];
pagination: PaginationMeta;
// Loading states
isLoading: boolean;
isLoadingMore: boolean;
isFetching: boolean;
// Error state
error: string | null;
// Pagination state
currentPage: number;
hasNextPage: boolean;
totalItems: number;
totalPages: number;
// Load more functionality
loadMore: () => void;
// Utility functions
refresh: () => void;
reset: () => void;
setParams: (params: Partial<TParams>) => void;
updateData: (updater: (data: T[]) => T[]) => void;
// Current parameters
params: TParams;
}
/**
* Generic pagination hook for load more functionality
*/
export function usePagination<
T,
TParams extends PaginationParams = PaginationParams,
>(config: UsePaginationConfig<T, TParams>): UsePaginationReturn<T, TParams> {
const queryClient = useQueryClient();
// State for current parameters
const [params, setParamsState] = useState<TParams>({
page: PAGINATION_DEFAULTS.page,
pageSize: PAGINATION_DEFAULTS.pageSize,
...config.initialParams,
} as TParams);
// State for accumulated data (for load more functionality)
const [accumulatedData, setAccumulatedData] = useState<T[]>([]);
const [isLoadingMore, setIsLoadingMore] = useState(false);
// Fetch data with React Query
const { data, isLoading, isFetching, error, refetch } = useQuery({
queryKey: config.queryKey(params),
queryFn: () => config.queryFn(params),
staleTime: config.staleTime || 5 * 60 * 1000, // 5 minutes default
retry: config.retry || 3,
});
// Update accumulated data when new data arrives
useEffect(() => {
if (data?.data) {
const currentPage = params.page || 1;
if (currentPage === 1) {
// Reset accumulated data for first page
setAccumulatedData(data.data);
} else E{
// Append new data for subsequent pages (load more functionality)
setAccumulatedData(prev => {
const existingIds = new Set(prev.map((item: any) => item.id));
const newItems = data.data.filter(
(item: any) => !existingIds.has(item.id)
);
return [...prev, ...newItems];
});
}
setIsLoadingMore(false);
}
}, [data, params.page]);
// Load more functionality
const loadMore = useCallback(() => {
const currentPage = params.page || 1;
if (data?.pagination && currentPage < data.pagination.pageCount) {
setIsLoadingMore(true);
setParamsState(
prev => ({ ...prev, page: (prev.page || 1) + 1 }) as TParams
);
}
}, [data?.pagination, params.page]);
// Utility functions
const refresh = useCallback(() => {
setAccumulatedData([]);
setParamsState(prev => ({ ...prev, page: 1 }) as TParams);
refetch();
}, [refetch]);
const reset = useCallback(() => {
setParamsState({
page: PAGINATION_DEFAULTS.page,
pageSize: PAGINATION_DEFAULTS.pageSize,
...config.initialParams,
} as TParams);
setAccumulatedData([]);
queryClient.invalidateQueries({ queryKey: config.queryKey(params) });
}, [config, params, queryClient]);
const setParams = useCallback((newParams: Partial<TParams>) => {
setParamsState(prev => ({ ...prev, ...newParams, page: 1 }) as TParams);
setAccumulatedData([]); // Reset accumulated data when params change
}, []);
const updateData = useCallback((updater: (data: T[]) => T[]) => {
setAccumulatedData(updater);
}, []);
// Calculate pagination state
const paginationState = data?.pagination
? getPaginationState(data.pagination, isLoading, isLoadingMore)
: {
currentPage: 1,
hasNextPage: false,
isLoading,
isLoadingMore,
totalItems: 0,
totalPages: 0,
};
return {
// Data
data: accumulatedData,
pagination: data?.pagination || {
page: 1,
pageSize: PAGINATION_DEFAULTS.pageSize,
pageCount: 0,
total: 0,
},
// Loading states
isLoading: isLoading && (params.page || 1) === 1,
isLoadingMore,
isFetching,
// Error state
error: error?.message || null,
// Pagination state
currentPage: paginationState.currentPage,
hasNextPage: paginationState.hasNextPage,
totalItems: paginationState.totalItems,
totalPages: paginationState.totalPages,
// Load more functionality
loadMore,
// Utility functions
refresh,
reset,
setParams,
updateData,
// Current parameters
params,
};
}
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