import 'package:flutter/material.dart';
import 'package:shadcn_ui/shadcn_ui.dart';

/// 统一空状态占位组件
class AppEmptyState extends StatelessWidget {
  final IconData icon;
  final String title;
  final String? subtitle;
  final Widget? action;

  const AppEmptyState({
    super.key,
    required this.icon,
    required this.title,
    this.subtitle,
    this.action,
  });

  @override
  Widget build(BuildContext context) {
    final theme = ShadTheme.of(context);
    return Center(
      child: Padding(
        padding: const EdgeInsets.all(48),
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            Container(
              width: 80,
              height: 80,
              decoration: BoxDecoration(
                color: theme.colorScheme.muted,
                borderRadius: BorderRadius.circular(40),
              ),
              child: Icon(icon, size: 36, color: theme.colorScheme.mutedForeground),
            ),
            const SizedBox(height: 20),
            Text(title, style: TextStyle(fontSize: 20, fontWeight: FontWeight.w600, color: theme.colorScheme.foreground)),
            if (subtitle != null) ...[
              const SizedBox(height: 6),
              Text(subtitle!, style: TextStyle(fontSize: 17, color: theme.colorScheme.mutedForeground), textAlign: TextAlign.center),
            ],
            if (action != null) ...[
              const SizedBox(height: 20),
              action!,
            ],
          ],
        ),
      ),
    );
  }
}