'use client';

import React from 'react';
import { ChevronLeft, ChevronRight } from 'lucide-react';

interface PaginationProps {
  currentPage: number;
  totalPages: number;
  onPageChange: (page: number) => void;
  showPageNumbers?: boolean;
  className?: string;
}

/**
 * Reusable pagination component
 */
export const Pagination: React.FC<PaginationProps> = ({
  currentPage,
  totalPages,
  onPageChange,
  showPageNumbers = true,
  className = '',
}) => {
  if (totalPages <= 1) return null;

  const handlePrevious = () => {
    if (currentPage > 1) {
      onPageChange(currentPage - 1);
    }
  };

  const handleNext = () => {
    if (currentPage < totalPages) {
      onPageChange(currentPage + 1);
    }
  };

  // Generate page numbers to show
  const getPageNumbers = () => {
    const pages: (number | string)[] = [];
    const maxVisible = 5;

    if (totalPages <= maxVisible) {
      for (let i = 1; i <= totalPages; i++) {
        pages.push(i);
      }
    } else {
      if (currentPage <= 3) {
        for (let i = 1; i <= 4; i++) pages.push(i);
        pages.push('...');
        pages.push(totalPages);
      } else if (currentPage >= totalPages - 2) {
        pages.push(1);
        pages.push('...');
        for (let i = totalPages - 3; i <= totalPages; i++) pages.push(i);
      } else {
        pages.push(1);
        pages.push('...');
        for (let i = currentPage - 1; i <= currentPage + 1; i++) pages.push(i);
        pages.push('...');
        pages.push(totalPages);
      }
    }

    return pages;
  };

  return (
    <div className={`flex items-center justify-center gap-2 ${className}`}>
      <button
        onClick={handlePrevious}
        disabled={currentPage === 1}
        className="flex items-center gap-1 px-3 py-2 text-sm font-medium text-gray-700 bg-white border border-gray-300 rounded-lg hover:bg-gray-50 disabled:opacity-50 disabled:cursor-not-allowed"
      >
        <ChevronLeft className="w-4 h-4" />
        Précédent
      </button>

      {showPageNumbers && (
        <div className="flex items-center gap-1">
          {getPageNumbers().map((page, index) =>
            page === '...' ? (
              <span key={`ellipsis-${index}`} className="px-2 text-gray-500">
                ...
              </span>
            ) : (
              <button
                key={page}
                onClick={() => onPageChange(page as number)}
                className={`px-3 py-2 text-sm font-medium rounded-lg ${
                  currentPage === page
                    ? 'bg-blue-600 text-white'
                    : 'text-gray-700 bg-white border border-gray-300 hover:bg-gray-50'
                }`}
              >
                {page}
              </button>
            )
          )}
        </div>
      )}

      {!showPageNumbers && (
        <span className="text-sm text-gray-600">
          Page {currentPage} sur {totalPages}
        </span>
      )}

      <button
        onClick={handleNext}
        disabled={currentPage === totalPages}
        className="flex items-center gap-1 px-3 py-2 text-sm font-medium text-gray-700 bg-white border border-gray-300 rounded-lg hover:bg-gray-50 disabled:opacity-50 disabled:cursor-not-allowed"
      >
        Suivant
        <ChevronRight className="w-4 h-4" />
      </button>
    </div>
  );
};

export default Pagination;