import { generatePagesArray } from './generatePagesArray';
import { PageButton } from './PageButton';
import { PageInput } from './PageInput';

interface Props {
  boundaryLinks?: boolean;
  currentPage: number;
  directionLinks?: boolean;
  itemsPerPage: number;
  onPageChange(page: number): void;
  totalCount: number;
  maxSize: number;
  isInputVisible?: boolean;
}

export function PageSelector({
  currentPage,
  totalCount,
  itemsPerPage,
  onPageChange,
  maxSize = 5,
  directionLinks = true,
  boundaryLinks = false,
  isInputVisible = false,
}: Props) {
  const pages = generatePagesArray(
    currentPage,
    totalCount,
    itemsPerPage,
    maxSize
  );
  const last = pages[pages.length - 1];

  if (pages.length <= 1) {
    return null;
  }

  return (
    <>
      {isInputVisible && (
        <PageInput
          onChange={(page) => onPageChange(page)}
          totalPages={Math.ceil(totalCount / itemsPerPage)}
        />
      )}
      <ul className="pagination">
        {boundaryLinks ? (
          <PageButton
            onPageChange={onPageChange}
            page={1}
            disabled={currentPage === 1}
          >
            &laquo;
          </PageButton>
        ) : null}
        {directionLinks ? (
          <PageButton
            onPageChange={onPageChange}
            page={currentPage - 1}
            disabled={currentPage === 1}
          >
            &lsaquo;
          </PageButton>
        ) : null}
        {pages.map((pageNumber, index) => (
          <PageButton
            onPageChange={onPageChange}
            page={pageNumber}
            disabled={pageNumber === '...'}
            active={currentPage === pageNumber}
            key={index}
          >
            {pageNumber}
          </PageButton>
        ))}

        {directionLinks ? (
          <PageButton
            onPageChange={onPageChange}
            page={currentPage + 1}
            disabled={currentPage === last}
          >
            &rsaquo;
          </PageButton>
        ) : null}
        {boundaryLinks ? (
          <PageButton
            disabled={currentPage === last}
            onPageChange={onPageChange}
            page={last}
          >
            &raquo;
          </PageButton>
        ) : null}
      </ul>
    </>
  );
}