manifold/web/components/pagination.tsx

import { ReactNode } from 'react'
import clsx from 'clsx'
import { Spacer } from './layout/spacer'
import { Row } from './layout/row'

export function PaginationNextPrev(props: {
  className?: string
  prev?: ReactNode
  next?: ReactNode
  onClickPrev: () => void
  onClickNext: () => void
  scrollToTop?: boolean
}) {
  const { className, prev, next, onClickPrev, onClickNext, scrollToTop } = props
  return (
    <Row className={clsx(className, 'flex-1 justify-between sm:justify-end')}>
      {prev != null && (
        <a
          href={scrollToTop ? '#' : undefined}
          className="relative inline-flex cursor-pointer select-none items-center rounded-md border border-gray-300 bg-white px-4 py-2 text-sm font-medium text-gray-700 hover:bg-gray-50"
          onClick={onClickPrev}
        >
          {prev ?? 'Previous'}
        </a>
      )}
      {next != null && (
        <a
          href={scrollToTop ? '#' : undefined}
          className="relative ml-3 inline-flex cursor-pointer select-none items-center rounded-md border border-gray-300 bg-white px-4 py-2 text-sm font-medium text-gray-700 hover:bg-gray-50"
          onClick={onClickNext}
        >
          {next ?? 'Next'}
        </a>
      )}
    </Row>
  )
}
export function Pagination(props: {
  page: number
  itemsPerPage: number
  totalItems: number
  setPage: (page: number) => void
  scrollToTop?: boolean
  className?: string
  nextTitle?: string
  prevTitle?: string
}) {
  const {
    page,
    itemsPerPage,
    totalItems,
    setPage,
    scrollToTop,
    nextTitle,
    prevTitle,
    className,
  } = props

  const maxPage = Math.ceil(totalItems / itemsPerPage) - 1

  if (maxPage === 0) return <Spacer h={4} />

  return (
    <nav
      className={clsx(
        'flex items-center justify-between border-t border-gray-200 bg-white px-4 py-3 sm:px-6',
        className
      )}
      aria-label="Pagination"
    >
      <div className="hidden sm:block">
        <p className="text-sm text-gray-700">
          Showing <span className="font-medium">{page * itemsPerPage + 1}</span>{' '}
          to{' '}
          <span className="font-medium">
            {Math.min(totalItems, (page + 1) * itemsPerPage)}
          </span>{' '}
          of <span className="font-medium">{totalItems}</span> results
        </p>
      </div>
      <PaginationNextPrev
        prev={page > 0 ? prevTitle ?? 'Previous' : null}
        next={page < maxPage ? nextTitle ?? 'Next' : null}
        onClickPrev={() => setPage(page - 1)}
        onClickNext={() => setPage(page + 1)}
        scrollToTop={scrollToTop}
      />
    </nav>
  )
}