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

/// 设备列表项组件
class DeviceTile extends StatelessWidget {
  final DeviceStatus device;
  final VoidCallback? onTap;
  final VoidCallback? onRefresh;

  const DeviceTile({
    super.key,
    required this.device,
    this.onTap,
    this.onRefresh,
  });

  @override
  Widget build(BuildContext context) {
    final theme = Theme.of(context);
    final statusColor = _getStatusColor();

    return Card(
      margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 4),
      child: ListTile(
        onTap: onTap,
        leading: Container(
          width: 48,
          height: 48,
          decoration: BoxDecoration(
            color: statusColor.withValues(alpha: 0.1),
            borderRadius: BorderRadius.circular(12),
          ),
          child: Icon(
            _getDeviceIcon(),
            color: statusColor,
          ),
        ),
        title: Text(
          device.name,
          style: theme.textTheme.titleMedium,
        ),
        subtitle: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            Text(
              '${device.ip}:${device.port}',
              style: theme.textTheme.bodySmall,
            ),
            const SizedBox(height: 4),
            Row(
              children: [
                _StatusBadge(
                  status: _getStatusText(),
                  color: statusColor,
                ),
                if (device.latency != null) ...[
                  const SizedBox(width: 8),
                  Text(
                    '${device.latency}ms',
                    style: theme.textTheme.bodySmall?.copyWith(
                      color: theme.colorScheme.onSurfaceVariant,
                    ),
                  ),
                ],
              ],
            ),
          ],
        ),
        trailing: IconButton(
          icon: const Icon(Icons.refresh),
          onPressed: onRefresh,
          tooltip: '刷新',
        ),
        isThreeLine: true,
      ),
    );
  }

  IconData _getDeviceIcon() {
    switch (device.type) {
      case DeviceType.gateway:
        return Icons.router;
      case DeviceType.bypass:
        return Icons.alt_route;
      case DeviceType.nas:
        return Icons.storage;
      case DeviceType.server:
        return Icons.dns;
      case DeviceType.camera:
        return Icons.videocam;
      case DeviceType.printer:
        return Icons.print;
      case DeviceType.other:
        return Icons.devices;
    }
  }

  Color _getStatusColor() {
    switch (device.state) {
      case DeviceState.online:
        return Colors.green;
      case DeviceState.offline:
        return Colors.red;
      case DeviceState.warning:
        return Colors.orange;
      case DeviceState.unknown:
        return Colors.grey;
    }
  }

  String _getStatusText() {
    switch (device.state) {
      case DeviceState.online:
        return '在线';
      case DeviceState.offline:
        return '离线';
      case DeviceState.warning:
        return '警告';
      case DeviceState.unknown:
        return '未知';
    }
  }
}

/// 状态徽章
class _StatusBadge extends StatelessWidget {
  final String status;
  final Color color;

  const _StatusBadge({
    required this.status,
    required this.color,
  });

  @override
  Widget build(BuildContext context) {
    return Container(
      padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 2),
      decoration: BoxDecoration(
        color: color.withValues(alpha: 0.1),
        borderRadius: BorderRadius.circular(10),
        border: Border.all(color: color.withValues(alpha: 0.3)),
      ),
      child: Text(
        status,
        style: TextStyle(
          color: color,
          fontSize: 12,
          fontWeight: FontWeight.w500,
        ),
      ),
    );
  }
}