import 'package:flutter/material.dart';

/// 空状态占位视图。
class EmptyView extends StatelessWidget {
  const EmptyView({
    super.key,
    this.message = '暂无数据',
    this.icon,
    this.action,
  });

  final String message;
  final Widget? icon;
  final Widget? action;

  @override
  Widget build(BuildContext context) {
    return Center(
      child: Padding(
        padding: const EdgeInsets.all(32),
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            icon ??
                Icon(
                  Icons.inbox_outlined,
                  size: 64,
                  color: Theme.of(context).colorScheme.outlineVariant,
                ),
            const SizedBox(height: 16),
            Text(
              message,
              style: Theme.of(context).textTheme.bodyMedium?.copyWith(
                    color: Theme.of(context).colorScheme.outline,
                  ),
              textAlign: TextAlign.center,
            ),
            if (action != null) ...[const SizedBox(height: 24), action!],
          ],
        ),
      ),
    );
  }
}