import 'package:flutter/material.dart';
import '../theme/colors.dart';

class NumberPad extends StatelessWidget {
  final void Function(String key) onKeyTap;
  final String? Function()? onDelete;

  const NumberPad({super.key, required this.onKeyTap, this.onDelete});

  @override
  Widget build(BuildContext context) {
    final keys = ['1','2','3','4','5','6','7','8','9','.', '0', 'delete'];
    return Padding(
      padding: const EdgeInsets.symmetric(horizontal: 20),
      child: GridView.count(
        crossAxisCount: 4,
        shrinkWrap: true,
        physics: const NeverScrollableScrollPhysics(),
        mainAxisSpacing: 8,
        crossAxisSpacing: 8,
        childAspectRatio: 1.5,
        children: keys.map((key) {
          final isDelete = key == 'delete';
          return GestureDetector(
            onTap: () => onKeyTap(key),
            child: Container(
              height: 48,
              decoration: BoxDecoration(
                color: isDelete ? AppColors.brand.withOpacity(0.08) : Colors.white.withOpacity(0.7),
                borderRadius: BorderRadius.circular(12),
              ),
              child: Center(
                child: Text(
                  isDelete ? '⌫' : key,
                  style: TextStyle(
                    fontSize: isDelete ? 20 : 22,
                    fontWeight: isDelete ? FontWeight.w400 : FontWeight.w500,
                    color: isDelete ? AppColors.brand : const Color(0xFF1C1C1E),
                  ),
                ),
              ),
            ),
          );
        }).toList(),
      ),
    );
  }
}