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

class BatteryInfoPanel extends StatelessWidget {
  final double batteryVolt;
  final double batteryTemp;
  final double maxVolt;
  final double minVolt;
  final double maxTemp;
  final double minTemp;
  final DataAbnormalType abnormalType;

  final double tempAvg;

  const BatteryInfoPanel({
    super.key,
    required this.batteryVolt,
    required this.batteryTemp,
    required this.maxVolt,
    required this.minVolt,
    required this.maxTemp,
    required this.minTemp,
    this.tempAvg = 0,
    this.abnormalType = DataAbnormalType.none,
  });

  @override
  Widget build(BuildContext context) {
    final bool isVoltageAbnormal =
        abnormalType == DataAbnormalType.voltageAbnormal;
    final Color voltColor = isVoltageAbnormal ? Colors.red : Colors.black;

    return Row(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        Expanded(
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              _buildInfoItem(
                _buildIcon('voltage'),
                '电压',
                '${batteryVolt.toStringAsFixed(3)}V',
                textColor: voltColor,
              ),
              const SizedBox(height: 8),
              Row(
                children: [
                  RichText(
                    text: TextSpan(
                      style: TextStyle(
                        fontFamily: 'Flyme',
                        fontSize: 14,
                        fontWeight: FontWeight.w500,
                        color: Colors.red,
                      ),
                      children: [
                        const TextSpan(
                          text: '↑ ',
                          style: TextStyle(
                            fontFamily: 'HarmonyOS_Sans_SC',
                            color: Colors.red,
                          ),
                        ),
                        TextSpan(
                          text: '${maxVolt.toStringAsFixed(3)}V',
                          style: TextStyle(
                            color: isVoltageAbnormal ? Colors.red : Colors.red,
                          ),
                        ),
                      ],
                    ),
                  ),
                  const SizedBox(width: 12),
                  RichText(
                    text: TextSpan(
                      style: TextStyle(
                        fontFamily: 'Flyme',
                        fontSize: 14,
                        fontWeight: FontWeight.w500,
                        color: Colors.blue,
                      ),
                      children: [
                        const TextSpan(
                          text: '↓ ',
                          style: TextStyle(
                            fontFamily: 'HarmonyOS_Sans_SC',
                            color: Colors.blue,
                          ),
                        ),
                        TextSpan(
                          text: '${minVolt.toStringAsFixed(3)}V',
                          style: TextStyle(
                            color: isVoltageAbnormal ? Colors.red : Colors.blue,
                          ),
                        ),
                      ],
                    ),
                  ),
                ],
              ),
            ],
          ),
        ),
        Expanded(
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              _buildInfoItem(
                _buildIcon('temperature'),
                '温度',
                '${batteryTemp.toStringAsFixed(0)}℃',
              ),
              const SizedBox(height: 8),
              // 🆕 一行显示：↑ max ↓ min [avg] avg
              Row(
                children: [
                  RichText(
                    text: TextSpan(
                      style: const TextStyle(
                        fontFamily: 'Flyme',
                        fontSize: 12,
                        fontWeight: FontWeight.w500,
                        color: Colors.red,
                      ),
                      children: [
                        const TextSpan(
                          text: '↑ ',
                          style: TextStyle(
                            fontFamily: 'HarmonyOS_Sans_SC',
                            color: Colors.red,
                          ),
                        ),
                        TextSpan(text: '${maxTemp.toStringAsFixed(1)}℃'),
                      ],
                    ),
                  ),
                  const SizedBox(width: 6),
                  RichText(
                    text: TextSpan(
                      style: const TextStyle(
                        fontFamily: 'Flyme',
                        fontSize: 12,
                        fontWeight: FontWeight.w500,
                        color: Colors.blue,
                      ),
                      children: [
                        const TextSpan(
                          text: '↓ ',
                          style: TextStyle(
                            fontFamily: 'HarmonyOS_Sans_SC',
                            color: Colors.blue,
                          ),
                        ),
                        TextSpan(text: '${minTemp.toStringAsFixed(1)}℃'),
                      ],
                    ),
                  ),
                  const SizedBox(width: 6),
                  _buildIcon('avg', size: 14),
                  const SizedBox(width: 2),
                  Text(
                    '${tempAvg.toStringAsFixed(1)}℃',
                    style: const TextStyle(
                      fontFamily: 'Flyme',
                      fontSize: 12,
                      fontWeight: FontWeight.w500,
                      color: Colors.grey,
                    ),
                  ),
                ],
              ),
            ],
          ),
        ),
      ],
    );
  }

  Widget _buildIcon(String type, {double size = 18}) {
    switch (type) {
      case 'voltage':
        return SvgPicture.asset(
          'assets/icons/si--lightning-fill.svg',
          width: size,
          height: size,
          colorFilter: const ColorFilter.mode(Colors.grey, BlendMode.srcIn),
        );
      case 'temperature':
        return SvgPicture.asset(
          'assets/icons/mdi--temperature.svg',
          width: size,
          height: size,
          colorFilter: const ColorFilter.mode(Colors.grey, BlendMode.srcIn),
        );
      case 'avg': // 🆕
        return SvgPicture.asset(
          'assets/icons/avg.svg',
          width: size,
          height: size,
          colorFilter: const ColorFilter.mode(Colors.grey, BlendMode.srcIn),
        );
      default:
        return Icon(Icons.help_outline, size: size, color: Colors.grey);
    }
  }

  Widget _buildInfoItem(
    Widget icon,
    String label,
    String value, {
    Color textColor = Colors.black,
  }) {
    return Row(
      children: [
        icon,
        const SizedBox(width: 6),
        Text(
          label,
          style: const TextStyle(
            fontFamily: 'HarmonyOS_Sans_SC',
            fontSize: 14,
            color: Colors.grey,
          ),
        ),
        const SizedBox(width: 6),
        Text(
          value,
          style: TextStyle(
            fontFamily: 'Flyme',
            fontSize: 16,
            fontWeight: FontWeight.w500,
            color: textColor,
          ),
        ),
      ],
    );
  }
}