export interface PaginationArgs {
readonly pageSize?: number;
readonly pageNumber?: number;
readonly totalHits?: number;
readonly pageCount?: number;
}
const calculateTotalPages = (
totalHits: number | undefined,
pageSize: number,
) => {
if (!pageSize || pageSize <= 0) return 0;
if (totalHits === undefined) return 1;
return Math.ceil(totalHits / pageSize);
};
type PaginationResult<T extends string> = Record<T, string | number> & {
pageNumber: string | number;
pageSize: string | number;
totalPages: string | number;
};
export function paginationSection<T extends string>(
totalSectionName: T,
{ pageSize, pageNumber, totalHits, pageCount }: PaginationArgs,
): PaginationResult<T> {
let formattedTotalPages: string | number = "N/A";
if (pageCount !== undefined) {
formattedTotalPages = pageCount;
} else if (pageSize !== undefined) {
formattedTotalPages = calculateTotalPages(totalHits, pageSize);
}
return {
pageNumber: pageNumber ?? "N/A",
pageSize: pageSize ?? "N/A",
totalPages: formattedTotalPages,
[totalSectionName]: totalHits ?? "N/A",
} as PaginationResult<T>;
}
