kandev/apps/web/components/ui/data-table-pagination.tsx

"use client"

import { type Table } from "@tanstack/react-table"
import {
  Pagination,
  PaginationContent,
  PaginationEllipsis,
  PaginationItem,
} from "@kandev/ui/pagination"
import { Button } from "@kandev/ui/button"
import {
  Select,
  SelectContent,
  SelectItem,
  SelectTrigger,
  SelectValue,
} from "@kandev/ui/select"
import {
  IconChevronLeft,
  IconChevronRight,
  IconChevronsLeft,
  IconChevronsRight,
} from "@tabler/icons-react"

interface DataTablePaginationProps<TData> {
  table: Table<TData>
}

export function DataTablePagination<TData>({
  table,
}: DataTablePaginationProps<TData>) {
  const currentPage = table.getState().pagination.pageIndex + 1
  const pageCount = table.getPageCount()

  // Generate page numbers to display
  const getPageNumbers = () => {
    const pages: (number | 'ellipsis')[] = []
    const showPages = 5 // Max pages to show

    if (pageCount <= showPages) {
      // Show all pages
      for (let i = 1; i <= pageCount; i++) {
        pages.push(i)
      }
    } else {
      // Always show first page
      pages.push(1)

      if (currentPage > 3) {
        pages.push('ellipsis')
      }

      // Pages around current
      const start = Math.max(2, currentPage - 1)
      const end = Math.min(pageCount - 1, currentPage + 1)

      for (let i = start; i <= end; i++) {
        pages.push(i)
      }

      if (currentPage < pageCount - 2) {
        pages.push('ellipsis')
      }

      // Always show last page
      if (pageCount > 1) {
        pages.push(pageCount)
      }
    }

    return pages
  }

  return (
    <div className="flex items-center justify-between px-2">
      <div className="flex-1 text-sm text-muted-foreground">
        {table.getFilteredRowModel().rows.length > 0 && (
          <>
            Showing {table.getState().pagination.pageIndex * table.getState().pagination.pageSize + 1} to{" "}
            {Math.min(
              (table.getState().pagination.pageIndex + 1) * table.getState().pagination.pageSize,
              table.getRowCount()
            )}{" "}
            of {table.getRowCount()} results
          </>
        )}
      </div>
      <div className="flex items-center space-x-6 lg:space-x-8">
        <div className="flex items-center space-x-2">
          <p className="text-sm font-medium whitespace-nowrap">Rows per page</p>
          <Select
            value={`${table.getState().pagination.pageSize}`}
            onValueChange={(value) => {
              table.setPageSize(Number(value))
            }}
          >
            <SelectTrigger className="h-8 w-[70px]">
              <SelectValue placeholder={table.getState().pagination.pageSize} />
            </SelectTrigger>
            <SelectContent side="top">
              {[10, 25, 50].map((pageSize) => (
                <SelectItem key={pageSize} value={`${pageSize}`}>
                  {pageSize}
                </SelectItem>
              ))}
            </SelectContent>
          </Select>
        </div>
        <Pagination>
          <PaginationContent>
            <PaginationItem>
              <Button
                variant="ghost"
                size="icon"
                className="hidden lg:flex cursor-pointer"
                onClick={() => table.setPageIndex(0)}
                disabled={!table.getCanPreviousPage()}
              >
                <span className="sr-only">Go to first page</span>
                <IconChevronsLeft className="h-4 w-4" />
              </Button>
            </PaginationItem>
            <PaginationItem>
              <Button
                variant="ghost"
                size="icon"
                className="cursor-pointer"
                onClick={() => table.previousPage()}
                disabled={!table.getCanPreviousPage()}
              >
                <span className="sr-only">Go to previous page</span>
                <IconChevronLeft className="h-4 w-4" />
              </Button>
            </PaginationItem>
            {getPageNumbers().map((page, idx) =>
              page === 'ellipsis' ? (
                <PaginationItem key={`ellipsis-${idx}`}>
                  <PaginationEllipsis />
                </PaginationItem>
              ) : (
                <PaginationItem key={page}>
                  <Button
                    variant={page === currentPage ? "outline" : "ghost"}
                    size="icon"
                    className="cursor-pointer"
                    onClick={() => table.setPageIndex(page - 1)}
                  >
                    {page}
                  </Button>
                </PaginationItem>
              )
            )}
            <PaginationItem>
              <Button
                variant="ghost"
                size="icon"
                className="cursor-pointer"
                onClick={() => table.nextPage()}
                disabled={!table.getCanNextPage()}
              >
                <span className="sr-only">Go to next page</span>
                <IconChevronRight className="h-4 w-4" />
              </Button>
            </PaginationItem>
            <PaginationItem>
              <Button
                variant="ghost"
                size="icon"
                className="hidden lg:flex cursor-pointer"
                onClick={() => table.setPageIndex(table.getPageCount() - 1)}
                disabled={!table.getCanNextPage()}
              >
                <span className="sr-only">Go to last page</span>
                <IconChevronsRight className="h-4 w-4" />
              </Button>
            </PaginationItem>
          </PaginationContent>
        </Pagination>
      </div>
    </div>
  )
}