import { InfiniteData } from '@tanstack/react-query'
import { PagedResponse } from '@utils/api/helpers'

export const infinitePageParams = {
  getPreviousPageParam: (firstPage: PagedResponse<any>) =>
    firstPage.links?.prev && { min_id: firstPage.links.next },
  getNextPageParam: (lastPage: PagedResponse<any>) =>
    lastPage.links?.next && { max_id: lastPage.links.next }
}

export const flattenPages = <T>(data: InfiniteData<PagedResponse<T[]>> | undefined): T[] | [] =>
  data?.pages.map(page => page.body).flat() || []