'use client';

import { HugeiconsIcon } from '@hugeicons/react';
import { ChevronLeftIcon, ChevronRightIcon } from '@hugeicons/core-free-icons';
import { Button } from '@/components/ui/button';
import {
  Select,
  SelectContent,
  SelectItem,
  SelectTrigger,
  SelectValue,
} from '@/components/ui/select';

interface TablePaginationProps {
  page: number;
  pageSize: number;
  totalRecords: number;
  pageSizeOptions?: number[];
  onPageChange: (page: number) => void;
  onPageSizeChange: (size: number) => void;
}

function buildPageNumbers(page: number, totalPages: number): (number | '...')[] {
  if (totalPages <= 7) return Array.from({ length: totalPages }, (_, i) => i + 1);
  const pages: (number | '...')[] = [1];
  if (page > 3) pages.push('...');
  for (let i = Math.max(2, page - 1); i <= Math.min(totalPages - 1, page + 1); i++) {
    pages.push(i);
  }
  if (page < totalPages - 2) pages.push('...');
  pages.push(totalPages);
  return pages;
}

export function TablePagination({
  page,
  pageSize,
  totalRecords,
  pageSizeOptions = [10, 25, 50, 100],
  onPageChange,
  onPageSizeChange,
}: TablePaginationProps) {
  const totalPages = Math.max(1, Math.ceil(totalRecords / pageSize));
  const from = Math.min((page - 1) * pageSize + 1, totalRecords);
  const to = Math.min(page * pageSize, totalRecords);
  const pages = buildPageNumbers(page, totalPages);

  return (
    <div className="flex flex-col gap-3 px-4 py-3 border-t sm:flex-row sm:items-center sm:justify-between">
      <div className="flex items-center gap-2 text-sm text-muted-foreground">
        <span>Rows per page:</span>
        <Select
          value={pageSize}
          onValueChange={(v) => onPageSizeChange(Number(v))}
        >
          <SelectTrigger size="sm" className="w-16">
            <SelectValue />
          </SelectTrigger>
          <SelectContent>
            {pageSizeOptions.map(s => (
              <SelectItem key={s} value={s}>{s}</SelectItem>
            ))}
          </SelectContent>
        </Select>
        <span className="ml-2">
          {totalRecords === 0 ? '0 records' : `${from}–${to} of ${totalRecords} records`}
        </span>
      </div>

      <div className="flex items-center gap-1">
        <Button
          variant="outline"
          size="icon-sm"
          onClick={() => onPageChange(page - 1)}
          disabled={page <= 1}
        >
          <HugeiconsIcon icon={ChevronLeftIcon} className="size-4" />
        </Button>

        {pages.map((p, i) =>
          p === '...' ? (
            <span key={`ellipsis-${i}`} className="px-2 text-muted-foreground text-sm">…</span>
          ) : (
            <Button
              key={p}
              variant={p === page ? 'default' : 'outline'}
              size="icon-sm"
              onClick={() => onPageChange(p as number)}
            >
              {p}
            </Button>
          )
        )}

        <Button
          variant="outline"
          size="icon-sm"
          onClick={() => onPageChange(page + 1)}
          disabled={page >= totalPages}
        >
          <HugeiconsIcon icon={ChevronRightIcon} className="size-4" />
        </Button>
      </div>
    </div>
  );
}