import 'package:flutter/material.dart';
import '../../../../core/theme/app_spacing.dart';
import '../../../../core/theme/app_theme.dart';

/// 币种头像组件
///
/// 显示币种图标或首字母的圆形头像，带主题色边框和背景。
class CoinAvatar extends StatelessWidget {
  final String? icon;
  const CoinAvatar({super.key, this.icon});

  @override
  Widget build(BuildContext context) {
    final colorScheme = Theme.of(context).colorScheme;
    return Container(
      width: 44,
      height: 44,
      decoration: BoxDecoration(
        color: colorScheme.primary.withOpacity(0.1),
        borderRadius: BorderRadius.circular(AppRadius.md),
        border: Border.all(color: colorScheme.primary.withOpacity(0.2)),
      ),
      child: Center(
        child: Text(icon ?? '?',
            style: AppTextStyles.displaySmall(context).copyWith(
              fontSize: 20,
              color: colorScheme.primary,
            )),
      ),
    );
  }
}