import 'package:flutter/material.dart';

class CommonCard extends StatelessWidget {
  final Widget? child;

  const CommonCard({super.key, this.child});

  @override
  Widget build(BuildContext context) {
    final colors = Theme.of(context).colorScheme;

    return Container(
      decoration: BoxDecoration(
        color: colors.surfaceContainer,
        borderRadius: BorderRadius.circular(12),
      ),
      padding: const EdgeInsets.all(16),
      child: child,
    );
  }
}

class CircleIconButton extends StatelessWidget {
  final IconData icon;
  final VoidCallback onPressed;

  const CircleIconButton(
      {super.key, required this.icon, required this.onPressed});

  @override
  Widget build(BuildContext context) {
    final colors = Theme.of(context).colorScheme;

    return ElevatedButton(
      onPressed: onPressed,
      style: ElevatedButton.styleFrom(
        shape: CircleBorder(),
        elevation: 0,
        backgroundColor: colors.primary,
        padding: EdgeInsets.zero,
        minimumSize: const Size(0, 0),
      ),
      child: Icon(icon, color: Colors.white),
    );
  }
}


Widget buildErrorInfo({
  required String errorInfo,
  required VoidCallback onPressed,
}) {
  return Center(
    child: Column(
      mainAxisAlignment: MainAxisAlignment.center,
      children: [
        Text('加载失败: $errorInfo'),
        ElevatedButton(onPressed: onPressed, child: Text('重试')),
      ],
    ),
  );
}

Widget buildLoadingIndicator() {
  return Center(child: CircularProgressIndicator());
}

Widget buildEmptyData() {
  return Center(
    child: Text('暂无数据', style: TextStyle(fontSize: 16, color: Colors.grey)),
  );
}