import 'package:flutter/material.dart';

class CustomAlertDialog extends StatelessWidget {
  final String title;
  final String content;
  final String cancelText;
  final String confirmText;
  final VoidCallback? onCancel;
  final VoidCallback? onConfirm;

  const CustomAlertDialog({
    Key? key,
    required this.title,
    required this.content,
    this.cancelText = "取消",
    this.confirmText = "确定",
    this.onCancel,
    this.onConfirm,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    final bool hasCancel = cancelText.trim().isNotEmpty;

    return Dialog(
      backgroundColor: Colors.transparent,
      child: Container(
        decoration: BoxDecoration(
          color: Colors.white,
          borderRadius: BorderRadius.circular(5),
        ),
        padding: EdgeInsets.zero,
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            const SizedBox(height: 20),
            Text(
              title,
              style: const TextStyle(
                fontSize: 18,
                fontWeight: FontWeight.bold,
              ),
              textAlign: TextAlign.center,
            ),
            const SizedBox(height: 20),
            Padding(
              padding: const EdgeInsets.symmetric(horizontal: 30),
              child: Text(
                content,
                style: const TextStyle(
                  fontSize: 16,
                  color: Colors.black45,
                ),
                textAlign: TextAlign.center,
              ),
            ),
            const SizedBox(height: 20),
            const Divider(height: 1),
            hasCancel ? _buildDoubleButtons(context) : _buildSingleButton(context),
          ],
        ),
      ),
    );
  }

  Widget _buildDoubleButtons(BuildContext context) {
    return Row(
      children: [
        Expanded(
          child: InkWell(
            onTap: () {
              Navigator.of(context).pop();
              onCancel?.call();
            },
            child: Container(
              padding: const EdgeInsets.symmetric(vertical: 12),
              alignment: Alignment.center,
              child: Text(
                cancelText,
                style: const TextStyle(
                  fontWeight: FontWeight.w500,
                  color: Colors.black,
                  fontSize: 18,
                ),
              ),
            ),
          ),
        ),
        Container(width: 1, height: 48, color: Colors.grey[300]),
        Expanded(
          child: InkWell(
            onTap: () {
              Navigator.of(context).pop();
              onConfirm?.call();
            },
            child: Container(
              padding: const EdgeInsets.symmetric(vertical: 12),
              alignment: Alignment.center,
              child: Text(
                confirmText,
                style: const TextStyle(
                  color: Color(0xFF3874F6), // 蓝色字体
                  fontWeight: FontWeight.w500,
                  fontSize: 18,
                ),
              ),
            ),
          ),
        ),
      ],
    );
  }

  Widget _buildSingleButton(BuildContext context) {
    return InkWell(
      onTap: () {
        Navigator.of(context).pop();
        onConfirm?.call();
      },
      child: Container(
        width: double.infinity,
        padding: const EdgeInsets.symmetric(vertical: 14),
        alignment: Alignment.center,
        child: Text(
          confirmText,
          style: const TextStyle(
            color: Color(0xFF3874F6), // 蓝色字体
            fontWeight: FontWeight.w500,
            fontSize: 18,
          ),
        ),
      ),
    );
  }
}