import 'dart:async';
import 'dart:math' as math;

import 'package:fl_chart/fl_chart.dart';
import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:get_it/get_it.dart';
import 'package:maibu_satabot_v2/core/localization/app_localizations.dart';
import 'package:syncfusion_flutter_gauges/gauges.dart';

import '../features/devices/presentation/bloc/device_status_bloc.dart';
import '../features/devices/presentation/bloc/device_status_state.dart';
import '../features/devices/presentation/bloc/device_status_event.dart';
import '../features/devices/presentation/bloc/devices_cubit.dart';
import '../features/remote_control/presentation/bloc/remote_control_cubit.dart';
import '../features/remote_control/presentation/bloc/remote_control_state.dart';
import '../core/logging/log_time.dart';

const int DATA_TIMEOUT_SECONDS = 15;

class DeviceStatusModal extends StatefulWidget {
  const DeviceStatusModal({super.key});

  @override
  State<DeviceStatusModal> createState() => _DeviceStatusModalState();
}

class _DeviceStatusModalState extends State<DeviceStatusModal> {
  bool _isCardView = true;
  bool _voltageGaugeMode = true;
  bool _chipTempGaugeMode = true;
  bool _knifeSpeedGaugeMode = false;

  final List<FlSpot> _leftMeasureHistory = [];
  final List<FlSpot> _rightMeasureHistory = [];
  final List<FlSpot> _leftTargetHistory = [];
  final List<FlSpot> _rightTargetHistory = [];
  final List<FlSpot> _leftCurrentHistory = [];
  final List<FlSpot> _rightCurrentHistory = [];
  final List<FlSpot> _leftTempHistory = [];
  final List<FlSpot> _rightTempHistory = [];
  final List<FlSpot> _knifeHistory = [];
  final List<FlSpot> _chipTempHistory = [];
  final List<FlSpot> _voltageHistory = [];

  double _timeIndex = 0;
  Timer? _dataTimeoutTimer;
  bool _isDataTimeout = false;

  @override
  void initState() {
    super.initState();
    debugPrint('${LogTime.now()} 🖥️ [设备数据监控] 页面打开，开始展示当前订阅设备的数据');
    _startDataTimeoutTimer();
    // 🔥 页面初始化时自动调用刷新
    WidgetsBinding.instance.addPostFrameCallback((_) {
      _onRefresh();
    });
  }

  /// 🔥 刷新函数 - 与刷新按钮共享逻辑
  void _onRefresh() {
    context.read<DeviceStatusBloc>().add(DeviceStatusReset());
    _resetChartData();
  }

  @override
  void dispose() {
    debugPrint('${LogTime.now()} 🚪 [设备数据监控] 页面关闭（MQTT订阅保持，后台继续收数据）');
    _dataTimeoutTimer?.cancel();
    super.dispose();
  }

  void _startDataTimeoutTimer() {
    _dataTimeoutTimer?.cancel();
    _dataTimeoutTimer = Timer(Duration(seconds: DATA_TIMEOUT_SECONDS), () {
      if (mounted) {
        setState(() {
          _isDataTimeout = true;
          _resetChartData();
        });
      }
    });
  }

  void _resetChartData() {
    _leftMeasureHistory.clear();
    _rightMeasureHistory.clear();
    _leftTargetHistory.clear();
    _rightTargetHistory.clear();
    _leftCurrentHistory.clear();
    _rightCurrentHistory.clear();
    _leftTempHistory.clear();
    _rightTempHistory.clear();
    _knifeHistory.clear();
    _chipTempHistory.clear();
    _voltageHistory.clear();
    _timeIndex = 0;
  }

  List<FlSpot> _getMappedSpots(List<FlSpot> data) {
    final List<FlSpot> mapped = [];
    final List<FlSpot> limited = data.length > 6
        ? data.sublist(data.length - 6)
        : List.from(data);
    for (int i = 0; i < limited.length; i++) {
      mapped.add(FlSpot(i.toDouble(), limited[i].y));
    }
    while (mapped.length < 6) {
      mapped.add(FlSpot(mapped.length.toDouble(), 0));
    }
    return mapped;
  }

  void _limit(List<FlSpot> list, {int max = 30}) {
    if (list.length > max) list.removeAt(0);
  }

  void _appendChartData(DeviceStatusUpdated state) {
    final status = state.status;

    _leftTargetHistory.add(FlSpot(_timeIndex, status.leftTargetSpeed));
    _rightTargetHistory.add(FlSpot(_timeIndex, status.rightTargetSpeed));
    _leftMeasureHistory.add(FlSpot(_timeIndex, status.leftMeasureSpeed));
    _rightMeasureHistory.add(FlSpot(_timeIndex, status.rightMeasureSpeed));
    _leftCurrentHistory.add(FlSpot(_timeIndex, status.leftCurrent));
    _rightCurrentHistory.add(FlSpot(_timeIndex, status.rightCurrent));
    _leftTempHistory.add(FlSpot(_timeIndex, status.leftMotorTemp));
    _rightTempHistory.add(FlSpot(_timeIndex, status.rightMotorTemp));
    _knifeHistory.add(
      FlSpot(_timeIndex, double.tryParse(status.knifeCuttingSpeed) ?? 0),
    );
    _chipTempHistory.add(FlSpot(_timeIndex, status.chipTemp));
    _voltageHistory.add(FlSpot(_timeIndex, status.voltage));

    _timeIndex += 1;

    _limit(_leftTargetHistory);
    _limit(_rightTargetHistory);
    _limit(_leftMeasureHistory);
    _limit(_rightMeasureHistory);
    _limit(_leftCurrentHistory);
    _limit(_rightCurrentHistory);
    _limit(_leftTempHistory);
    _limit(_rightTempHistory);
    _limit(_knifeHistory);
    _limit(_chipTempHistory);
    _limit(_voltageHistory);
  }

  Widget _noDataWidget() {
    return Center(
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          Icon(Icons.inbox_outlined, color: Colors.grey, size: 48),
          SizedBox(height: 16),
          Text(
            AppLocalizations.of(context).translate('running_status.no_data'),
            style: TextStyle(color: Colors.grey, fontSize: 16),
          ),
        ],
      ),
    );
  }

  Widget _buildCardContentView(DeviceStatusState state) {
    if (state is DeviceStatusInitial) {
      return _noDataWidget();
    }

    if (state is DeviceStatusUpdated) {
      return SingleChildScrollView(
        padding: const EdgeInsets.all(16),
        child: Column(
          children: [
            _buildMotorTable(state),
            const SizedBox(height: 20),
            _buildOtherParamsTable(state),
          ],
        ),
      );
    } else if (state is DeviceStatusError) {
      return _noDataWidget();
    } else {
      return _noDataWidget();
    }
  }

  Widget _buildMotorTable(DeviceStatusUpdated state) {
    final status = state.status;
    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        Padding(
          padding: const EdgeInsets.symmetric(vertical: 12),
          child: Text(
            AppLocalizations.of(
              context,
            ).translate('running_status.motor_params'),
            style: const TextStyle(fontSize: 16, fontWeight: FontWeight.bold),
          ),
        ),
        Table(
          border: TableBorder.all(color: const Color(0xFFE5E5E5)),
          defaultVerticalAlignment: TableCellVerticalAlignment.middle,
          children: [
            TableRow(
              decoration: const BoxDecoration(color: Color(0xFFF5F5F5)),
              children: [
                const SizedBox(),
                _buildTableCell(
                  AppLocalizations.of(
                    context,
                  ).translate('running_status.left_wheel'),
                  isHeader: true,
                ),
                _buildTableCell(
                  AppLocalizations.of(
                    context,
                  ).translate('running_status.right_wheel'),
                  isHeader: true,
                ),
              ],
            ),
            TableRow(
              children: [
                _buildTableCell(
                  AppLocalizations.of(
                        context,
                      ).translate('running_status.target_speed') +
                      "\n(rpm)",
                ),
                _buildTableCell('--'),
                _buildTableCell('--'),
              ],
            ),
            TableRow(
              children: [
                _buildTableCell(
                  AppLocalizations.of(
                        context,
                      ).translate('running_status.measure_speed') +
                      "\n(rpm)",
                ),
                _buildTableCell('--'),
                _buildTableCell('--'),
              ],
            ),
            TableRow(
              children: [
                _buildTableCell(
                  AppLocalizations.of(
                        context,
                      ).translate('running_status.current') +
                      "(A)",
                ),
                _buildTableCell('--'),
                _buildTableCell('--'),
              ],
            ),
            TableRow(
              children: [
                _buildTableCell(
                  AppLocalizations.of(
                        context,
                      ).translate('running_status.motor_temp') +
                      "(°C)",
                ),
                _buildTableCell('--'),
                _buildTableCell('--'),
              ],
            ),
          ],
        ),
      ],
    );
  }

  Widget _buildOtherParamsTable(DeviceStatusUpdated state) {
    final status = state.status;
    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        Padding(
          padding: const EdgeInsets.symmetric(vertical: 12),
          child: Text(
            AppLocalizations.of(
              context,
            ).translate('running_status.other_params'),
            style: const TextStyle(fontSize: 16, fontWeight: FontWeight.bold),
          ),
        ),
        Table(
          border: TableBorder.all(color: const Color(0xFFE5E5E5)),
          defaultVerticalAlignment: TableCellVerticalAlignment.middle,
          children: [
            TableRow(
              decoration: const BoxDecoration(color: Color(0xFFF5F5F5)),
              children: [
                _buildTableCell(
                  AppLocalizations.of(context).translate('running_status.name'),
                  isHeader: true,
                ),
                _buildTableCell(
                  AppLocalizations.of(
                    context,
                  ).translate('running_status.value'),
                  isHeader: true,
                ),
              ],
            ),
            TableRow(
              children: [
                _buildTableCell(
                  AppLocalizations.of(
                        context,
                      ).translate('running_status.pitch_angle') +
                      "(°)",
                ),
                _buildTableCell('--'),
              ],
            ),
            TableRow(
              children: [
                _buildTableCell(
                  AppLocalizations.of(
                        context,
                      ).translate('running_status.roll_angle') +
                      "(°)",
                ),
                _buildTableCell('--'),
              ],
            ),
            TableRow(
              children: [
                _buildTableCell(
                  AppLocalizations.of(
                        context,
                      ).translate('running_status.heading_angle') +
                      "(°)",
                ),
                _buildTableCell(status.yaw.toStringAsFixed(2)),
              ],
            ),
            TableRow(
              children: [
                _buildTableCell(
                  AppLocalizations.of(
                        context,
                      ).translate('running_status.battery') +
                      "(%)",
                ),
                _buildTableCell('--'),
              ],
            ),
            TableRow(
              children: [
                _buildTableCell(
                  AppLocalizations.of(
                        context,
                      ).translate('running_status.chip_temp') +
                      "(°C)",
                ),
                _buildTableCell('--'),
              ],
            ),
            TableRow(
              children: [
                _buildTableCell(
                  AppLocalizations.of(
                        context,
                      ).translate('running_status.knife_speed') +
                      "(rpm)",
                ),
                _buildTableCell('--'),
              ],
            ),
            TableRow(
              children: [
                _buildTableCell(
                  AppLocalizations.of(
                    context,
                  ).translate('running_status.control_mode'),
                ),
                _buildTableCell('--'),
              ],
            ),
            TableRow(
              children: [
                _buildTableCell(
                  AppLocalizations.of(
                        context,
                      ).translate('running_status.longitude') +
                      "(°)",
                ),
                _buildTableCell(status.longitude.toStringAsFixed(6)),
              ],
            ),
            TableRow(
              children: [
                _buildTableCell(
                  AppLocalizations.of(
                        context,
                      ).translate('running_status.latitude') +
                      "(°)",
                ),
                _buildTableCell(status.latitude.toStringAsFixed(6)),
              ],
            ),
          ],
        ),
      ],
    );
  }

  Widget _buildTableCell(String text, {bool isHeader = false}) {
    return TableCell(
      child: Padding(
        padding: const EdgeInsets.symmetric(vertical: 10, horizontal: 6),
        child: Text(
          text,
          textAlign: TextAlign.center,
          style: TextStyle(
            fontSize: 14,
            color: isHeader ? const Color(0xFF333333) : const Color(0xFF666666),
            fontWeight: isHeader ? FontWeight.bold : FontWeight.normal,
          ),
        ),
      ),
    );
  }

  String _getControlModeKey(int modeValue) {
    switch (modeValue) {
      case 3:
        return 'running_status.remote_control';
      default:
        return 'running_status.local_control';
    }
  }

  @override
  Widget build(BuildContext context) {
    return BlocBuilder<DeviceStatusBloc, DeviceStatusState>(
      builder: (context, state) {
        if (state is DeviceStatusUpdated) {
          _startDataTimeoutTimer(); // 每次收到数据重置超时计时器
          _isDataTimeout = false; // 直接赋值，不调 setState（build 阶段禁止）
          _appendChartData(state);
        }

        return Container(
          constraints: BoxConstraints(
            maxHeight: MediaQuery.of(context).size.height * 0.85,
          ),
          decoration: const BoxDecoration(
            color: Colors.white,
            borderRadius: BorderRadius.only(
              topLeft: Radius.circular(16),
              topRight: Radius.circular(16),
            ),
          ),
          child: Column(
            children: [
              // Header
              Container(
                padding: const EdgeInsets.symmetric(
                  horizontal: 16,
                  vertical: 12,
                ),
                decoration: const BoxDecoration(
                  color: Color(0xFF1677FF),
                  borderRadius: BorderRadius.only(
                    topLeft: Radius.circular(16),
                    topRight: Radius.circular(16),
                  ),
                ),
                child: Row(
                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
                  children: [
                    Expanded(
                      child: Column(
                        crossAxisAlignment: CrossAxisAlignment.start,
                        children: [
                          Text(
                            AppLocalizations.of(
                              context,
                            ).translate('running_status.title'),
                            style: const TextStyle(
                              color: Colors.white,
                              fontSize: 18,
                              fontWeight: FontWeight.bold,
                            ),
                          ),
                          // 🔥 显示当前TCP认证的设备号
                          BlocBuilder<RemoteControlCubit, RemoteControlState>(
                            builder: (context, state) {
                              var deviceS =
                                  state.targetDevice?.deviceName ?? '未选择';
                              return Text(
                                '设备: $deviceS',
                                style: const TextStyle(
                                  color: Colors.white70,
                                  fontSize: 12,
                                ),
                              );
                            },
                          ),
                        ],
                      ),
                    ),
                    IconButton(
                      icon: const Icon(Icons.close, color: Colors.white),
                      onPressed: () => Navigator.pop(context),
                    ),
                  ],
                ),
              ),
              // Status Bar
              BlocBuilder<DeviceStatusBloc, DeviceStatusState>(
                builder: (context, state) {
                  // 🔥 headingStatus/satelliteCnt 来自 realtime/post（尚未推送）
                  String satelliteCnt = '--';
                  String headingStatus = '--';
                  // 🔥 定位质量来自 location/post 的 fix_status
                  String qual = '--';
                  if (state is DeviceStatusUpdated) {
                    qual = _getLocationQualityText(state.status.qual);
                  }

                  return Container(
                    color: Colors.white,
                    padding: const EdgeInsets.symmetric(
                      horizontal: 12,
                      vertical: 8,
                    ),
                    child: Row(
                      mainAxisAlignment: MainAxisAlignment.spaceBetween,
                      children: [
                        Expanded(
                          flex: 3,
                          child: Text(
                            AppLocalizations.of(
                                  context,
                                ).translate('running_status.heading_status') +
                                "：$headingStatus",
                            style: const TextStyle(fontSize: 12),
                            maxLines: 1,
                            overflow: TextOverflow.ellipsis,
                          ),
                        ),
                        Expanded(
                          flex: 4,
                          child: Text(
                            AppLocalizations.of(
                                  context,
                                ).translate('running_status.position_quality') +
                                "：$qual",
                            style: const TextStyle(fontSize: 12),
                            maxLines: 1,
                            overflow: TextOverflow.ellipsis,
                            textAlign: TextAlign.center,
                          ),
                        ),
                        Expanded(
                          flex: 2,
                          child: Text(
                            AppLocalizations.of(
                                  context,
                                ).translate('running_status.satellite_count') +
                                "：$satelliteCnt",
                            style: const TextStyle(fontSize: 12),
                            maxLines: 1,
                            overflow: TextOverflow.ellipsis,
                            textAlign: TextAlign.right,
                          ),
                        ),
                      ],
                    ),
                  );
                },
              ),
              // Tab Switch
              Container(
                color: Colors.white,
                margin: const EdgeInsets.only(top: 8),
                padding: const EdgeInsets.symmetric(
                  horizontal: 16,
                  vertical: 4,
                ),
                child: Row(
                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
                  children: [
                    Row(
                      children: [
                        GestureDetector(
                          onTap: () => setState(() => _isCardView = true),
                          child: _buildTab(
                            AppLocalizations.of(
                              context,
                            ).translate('running_status.card'),
                            isActive: _isCardView,
                          ),
                        ),
                        const SizedBox(width: 24),
                        GestureDetector(
                          onTap: () => setState(() => _isCardView = false),
                          child: _buildTab(
                            AppLocalizations.of(
                              context,
                            ).translate('running_status.chart'),
                            isActive: !_isCardView,
                          ),
                        ),
                      ],
                    ),
                    IconButton(
                      icon: const Icon(Icons.refresh, color: Color(0xFF1677FF)),
                      onPressed: _onRefresh,
                    ),
                  ],
                ),
              ),
              // Content
              Expanded(
                child: Container(
                  margin: const EdgeInsets.all(8),
                  child: _isCardView
                      ? _buildCardContentView(state)
                      : _buildChartContentView(state),
                ),
              ),
            ],
          ),
        );
      },
    );
  }

  Widget _buildTab(String title, {required bool isActive}) {
    return Container(
      padding: const EdgeInsets.symmetric(vertical: 4, horizontal: 4),
      decoration: BoxDecoration(
        border: Border(
          bottom: BorderSide(
            color: isActive ? const Color(0xFF1677FF) : Colors.transparent,
            width: 2,
          ),
        ),
      ),
      child: Text(
        title,
        style: TextStyle(
          color: isActive ? const Color(0xFF1677FF) : const Color(0xFF666666),
          fontSize: 16,
          fontWeight: isActive ? FontWeight.w600 : FontWeight.normal,
          height: 1.0,
        ),
      ),
    );
  }

  Widget _buildChartContentView(DeviceStatusState state) {
    if (state is DeviceStatusInitial) {
      return _noDataWidget();
    }

    if (state is! DeviceStatusUpdated) {
      return _noDataWidget();
    }

    final status = state.status;
    return SingleChildScrollView(
      padding: const EdgeInsets.all(16),
      child: Column(
        children: [
          _chartCard(
            title:
                AppLocalizations.of(
                  context,
                ).translate('running_status.voltage') +
                " (V)",
            isGaugeMode: _voltageGaugeMode,
            onGaugeTap: () => setState(() => _voltageGaugeMode = true),
            onChartTap: () => setState(() => _voltageGaugeMode = false),
            child: _voltageGaugeMode
                ? _circularGauge(
                    value: status.voltage,
                    maxValue: 250,
                    unit: "V",
                    majorTicks: const [0, 50, 100, 150, 200, 250],
                  )
                : SizedBox(
                    height: 180,
                    child: _styledLineChart(
                      title: AppLocalizations.of(
                        context,
                      ).translate('running_status.voltage'),
                      lines: [
                        _lineData(_voltageHistory, const Color(0xFF4CAF50)),
                      ],
                      yAxisMax: 250,
                      yAxisMin: 0,
                      yTickCount: 6,
                    ),
                  ),
          ),
          _gap(),
          _chartCard(
            title:
                AppLocalizations.of(
                  context,
                ).translate('running_status.chip_temp') +
                " (°C)",
            isGaugeMode: _chipTempGaugeMode,
            onGaugeTap: () => setState(() => _chipTempGaugeMode = true),
            onChartTap: () => setState(() => _chipTempGaugeMode = false),
            child: _chipTempGaugeMode
                ? _circularGauge(
                    value: status.chipTemp,
                    maxValue: 100,
                    unit: "°C",
                    majorTicks: const [
                      0,
                      10,
                      20,
                      30,
                      40,
                      50,
                      60,
                      70,
                      80,
                      90,
                      100,
                    ],
                  )
                : SizedBox(
                    height: 180,
                    child: _styledLineChart(
                      title: AppLocalizations.of(
                        context,
                      ).translate('running_status.chip_temp'),
                      lines: [
                        _lineData(_chipTempHistory, const Color(0xFF4CAF50)),
                      ],
                      yAxisMax: 100,
                      yAxisMin: 0,
                      yTickCount: 6,
                    ),
                  ),
          ),
          _gap(),
          _chartCard(
            title:
                AppLocalizations.of(
                  context,
                ).translate('running_status.knife_speed') +
                " (rpm)",
            isGaugeMode: _knifeSpeedGaugeMode,
            onGaugeTap: () => setState(() => _knifeSpeedGaugeMode = true),
            onChartTap: () => setState(() => _knifeSpeedGaugeMode = false),
            child: _knifeSpeedGaugeMode
                ? _circularGauge(
                    value: double.tryParse(status.knifeCuttingSpeed) ?? 0,
                    maxValue: 3000,
                    unit: "rpm",
                    majorTicks: const [0, 500, 1000, 1500, 2000, 2500, 3000],
                  )
                : SizedBox(
                    height: 180,
                    child: _styledLineChart(
                      title: AppLocalizations.of(
                        context,
                      ).translate('running_status.knife_speed'),
                      lines: [
                        _lineData(_knifeHistory, const Color(0xFF4CAF50)),
                      ],
                      yAxisMax: 3000,
                      yAxisMin: -3000,
                      yTickCount: 7,
                    ),
                  ),
          ),
          _gap(),
          Container(
            decoration: BoxDecoration(
              color: Colors.white,
              borderRadius: BorderRadius.circular(12),
              boxShadow: [
                BoxShadow(
                  color: Colors.grey.withOpacity(0.1),
                  blurRadius: 4,
                  offset: const Offset(0, 2),
                ),
              ],
            ),
            padding: const EdgeInsets.all(16),
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                Text(
                  AppLocalizations.of(
                        context,
                      ).translate('running_status.left_right_measure_speed') +
                      " (rpm)",
                  style: const TextStyle(
                    fontSize: 16,
                    fontWeight: FontWeight.bold,
                    color: Color(0xFF1677FF),
                  ),
                ),
                const SizedBox(height: 16),
                SizedBox(
                  height: 180,
                  child: _styledLineChart(
                    title: AppLocalizations.of(
                      context,
                    ).translate('running_status.left_right_measure_speed'),
                    lines: [
                      _lineData(_leftMeasureHistory, const Color(0xFF3F51B5)),
                      _lineData(_rightMeasureHistory, const Color(0xFF8BC34A)),
                    ],
                    yAxisMax: 3000,
                    yAxisMin: -3000,
                    yTickCount: 7,
                  ),
                ),
              ],
            ),
          ),
          _gap(),
        ],
      ),
    );
  }

  Widget _gap({double height = 20}) {
    return SizedBox(height: height);
  }

  Widget _chartCard({
    required String title,
    required Widget child,
    required bool isGaugeMode,
    required Function() onGaugeTap,
    required Function() onChartTap,
  }) {
    return Container(
      decoration: BoxDecoration(
        color: Colors.white,
        borderRadius: BorderRadius.circular(12),
        boxShadow: [
          BoxShadow(
            color: Colors.grey.withOpacity(0.1),
            blurRadius: 4,
            offset: const Offset(0, 2),
          ),
        ],
      ),
      padding: const EdgeInsets.all(16),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Row(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
            children: [
              Text(
                title,
                style: const TextStyle(
                  fontSize: 16,
                  fontWeight: FontWeight.bold,
                  color: Color(0xFF1677FF),
                ),
              ),
              Row(
                children: [
                  GestureDetector(
                    onTap: onGaugeTap,
                    child: Text(
                      "仪表盘",
                      style: TextStyle(
                        color: isGaugeMode
                            ? const Color(0xFF1677FF)
                            : Colors.grey,
                        fontSize: 14,
                        fontWeight: isGaugeMode
                            ? FontWeight.bold
                            : FontWeight.normal,
                      ),
                    ),
                  ),
                  const SizedBox(width: 16),
                  GestureDetector(
                    onTap: onChartTap,
                    child: Text(
                      "折线图",
                      style: TextStyle(
                        color: !isGaugeMode
                            ? const Color(0xFF1677FF)
                            : Colors.grey,
                        fontSize: 14,
                        fontWeight: !isGaugeMode
                            ? FontWeight.bold
                            : FontWeight.normal,
                      ),
                    ),
                  ),
                ],
              ),
            ],
          ),
          const SizedBox(height: 16),
          child,
        ],
      ),
    );
  }

  Widget _circularGauge({
    required double value,
    required double maxValue,
    required String unit,
    List<double> majorTicks = const [
      0,
      10,
      20,
      30,
      40,
      50,
      60,
      70,
      80,
      90,
      100,
    ],
  }) {
    return AnimatedCircularGauge(
      value: value,
      maxValue: maxValue,
      unit: unit,
      majorTicks: majorTicks,
    );
  }

  Widget _styledLineChart({
    required String title,
    required List<LineChartBarData> lines,
    required double yAxisMax,
    double yAxisMin = 0,
    List<String> bottomLabels = const ["t", "t+1", "t+2", "t+3", "t+4", "t+5"],
    int yTickCount = 5,
    bool forceShowZeroTick = true,
    double leftTitlePadding = 8.0,
    double bottomTitlePadding = 8.0,
  }) {
    final List<double> yTicks = _calculateYTicks(
      yAxisMin,
      yAxisMax,
      yTickCount,
    );
    final List<double> finalYTicks = forceShowZeroTick
        ? (yTicks.contains(0) ? yTicks : [...yTicks, 0]
            ..sort())
        : yTicks;

    final double yInterval = finalYTicks.length > 1
        ? (finalYTicks.last - finalYTicks.first) / (finalYTicks.length - 1)
        : 1.0;

    const double xMin = 0;
    const double xMax = 5;

    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      mainAxisSize: MainAxisSize.min,
      children: [
        if (lines.length > 1)
          Padding(
            padding: const EdgeInsets.only(bottom: 8),
            child: Row(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                _legendItem(
                  color: const Color(0xFF3F51B5),
                  label: AppLocalizations.of(
                    context,
                  ).translate('running_status.left_wheel'),
                ),
                const SizedBox(width: 24),
                _legendItem(
                  color: const Color(0xFF8BC34A),
                  label: AppLocalizations.of(
                    context,
                  ).translate('running_status.right_wheel'),
                ),
              ],
            ),
          ),
        Expanded(
          child: Padding(
            padding: const EdgeInsets.only(
              right: 35,
              top: 5,
              bottom: 0,
              left: 0,
            ),
            child: LineChart(
              LineChartData(
                minY: yAxisMin,
                maxY: yAxisMax,
                minX: xMin,
                maxX: xMax,
                borderData: FlBorderData(show: false),
                gridData: FlGridData(
                  show: true,
                  horizontalInterval: yInterval,
                  getDrawingHorizontalLine: (value) {
                    if (value == 0) {
                      return const FlLine(
                        color: Color(0xFFCCCCCC),
                        strokeWidth: 1.5,
                      );
                    }
                    return const FlLine(
                      color: Color(0xFFE5E5E5),
                      strokeWidth: 1,
                    );
                  },
                  drawVerticalLine: false,
                ),
                titlesData: FlTitlesData(
                  leftTitles: AxisTitles(
                    sideTitles: SideTitles(
                      showTitles: true,
                      reservedSize: 50 + leftTitlePadding,
                      interval: yInterval,
                      getTitlesWidget: (value, meta) {
                        if (finalYTicks.any(
                          (tick) => (value - tick).abs() < 0.01,
                        )) {
                          return Padding(
                            padding: EdgeInsets.only(right: leftTitlePadding),
                            child: Text(
                              value.toStringAsFixed(0),
                              style: const TextStyle(
                                fontSize: 12,
                                color: Colors.grey,
                              ),
                              textAlign: TextAlign.right,
                            ),
                          );
                        }
                        return const SizedBox.shrink();
                      },
                    ),
                  ),
                  bottomTitles: AxisTitles(
                    sideTitles: SideTitles(
                      showTitles: true,
                      interval: 1,
                      reservedSize: 35 + bottomTitlePadding,
                      getTitlesWidget: (value, meta) {
                        int idx = value.toInt();
                        if (idx >= 0 && idx < bottomLabels.length) {
                          return Padding(
                            padding: EdgeInsets.only(top: bottomTitlePadding),
                            child: Transform.translate(
                              offset: const Offset(-5, 0),
                              child: Text(
                                bottomLabels[idx],
                                style: const TextStyle(
                                  fontSize: 12,
                                  color: Colors.grey,
                                ),
                              ),
                            ),
                          );
                        }
                        return const SizedBox.shrink();
                      },
                    ),
                  ),
                  rightTitles: const AxisTitles(
                    sideTitles: SideTitles(showTitles: false),
                  ),
                  topTitles: const AxisTitles(
                    sideTitles: SideTitles(showTitles: false),
                  ),
                ),
                lineBarsData: lines,
                extraLinesData: ExtraLinesData(horizontalLines: []),
              ),
            ),
          ),
        ),
      ],
    );
  }

  List<double> _calculateYTicks(double min, double max, int count) {
    if (min > 0) {
      min = 0;
    }

    final List<double> ticks = [];
    final double step = (max - min) / (count - 1);

    for (int i = 0; i < count; i++) {
      ticks.add(min + step * i);
    }

    return ticks;
  }

  Widget _legendItem({required Color color, required String label}) {
    return Row(
      children: [
        Container(
          width: 16,
          height: 16,
          decoration: BoxDecoration(
            shape: BoxShape.circle,
            color: Colors.white,
            border: Border.all(color: color, width: 2),
          ),
        ),
        const SizedBox(width: 4),
        Text(
          label,
          style: const TextStyle(fontSize: 14, color: Colors.black87),
        ),
      ],
    );
  }

  LineChartBarData _lineData(List<FlSpot> data, Color color) {
    return LineChartBarData(
      spots: _getMappedSpots(data),
      isCurved: false,
      color: color,
      barWidth: 2,
      isStrokeCapRound: true,
      dotData: FlDotData(
        show: true,
        getDotPainter: (spot, percent, barData, index) => FlDotCirclePainter(
          radius: 4,
          color: color,
          strokeWidth: 2,
          strokeColor: Colors.white,
        ),
      ),
      belowBarData: BarAreaData(show: false),
    );
  }

  /// 🔥 fix_status 枚举翻译（来自 MQTT location/post）
  String _getLocationQualityText(int qualValue) {
    switch (qualValue) {
      case 0:  return '无定位';
      case 1:  return '单点定位';
      case 2:  return '差分定位';
      case 3:  return '惯性导航';
      case 4:  return 'RTK固定解';
      case 5:  return 'RTK浮点解';
      case 6:  return '单点(无航向)';
      case 7:  return '差分(无航向)';
      case 8:  return 'RTK固定(无航向)';
      case 9:  return 'RTK浮点(无航向)';
      default: return '--';
    }
  }
}

class AnimatedCircularGauge extends StatefulWidget {
  final double value;
  final double maxValue;
  final String unit;
  final List<double> majorTicks;

  const AnimatedCircularGauge({
    super.key,
    required this.value,
    required this.maxValue,
    required this.unit,
    required this.majorTicks,
  });

  @override
  State<AnimatedCircularGauge> createState() => _AnimatedCircularGaugeState();
}

class _AnimatedCircularGaugeState extends State<AnimatedCircularGauge>
    with SingleTickerProviderStateMixin {
  late AnimationController _animationController;
  late Animation<double> _valueAnimation;
  double _previousValue = 0.0;

  @override
  void initState() {
    super.initState();
    _animationController = AnimationController(
      vsync: this,
      duration: const Duration(milliseconds: 800),
    );
    _previousValue = widget.value;
    _valueAnimation =
        Tween<double>(begin: 0, end: widget.value).animate(
          CurvedAnimation(
            parent: _animationController,
            curve: Curves.easeOutCubic,
          ),
        )..addListener(() {
          setState(() {});
        });
    _animationController.forward();
  }

  @override
  void didUpdateWidget(covariant AnimatedCircularGauge oldWidget) {
    super.didUpdateWidget(oldWidget);
    if (widget.value != oldWidget.value) {
      _previousValue = _valueAnimation.value;
      _valueAnimation =
          Tween<double>(begin: _previousValue, end: widget.value).animate(
            CurvedAnimation(
              parent: _animationController,
              curve: Curves.easeOutCubic,
            ),
          )..addListener(() {
            setState(() {});
          });
      _animationController.reset();
      _animationController.forward();
    }
  }

  @override
  void dispose() {
    _animationController.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return SizedBox(
      height: 180,
      child: Stack(
        alignment: Alignment.center,
        children: [
          CustomPaint(
            painter: CircularGaugePainter(
              value: _valueAnimation.value,
              maxValue: widget.maxValue,
              majorTicks: widget.majorTicks,
            ),
            size: const Size(240, 240),
          ),
          Positioned(
            bottom: 20,
            child: Text(
              "${_valueAnimation.value.toStringAsFixed(2)} ${widget.unit}",
              style: const TextStyle(
                fontSize: 18,
                fontWeight: FontWeight.w500,
                color: Colors.grey,
              ),
            ),
          ),
        ],
      ),
    );
  }
}

class CircularGaugePainter extends CustomPainter {
  final double value;
  final double maxValue;
  final List<double> majorTicks;

  CircularGaugePainter({
    required this.value,
    required this.maxValue,
    required this.majorTicks,
  });

  @override
  void paint(Canvas canvas, Size size) {
    final center = Offset(size.width / 2, size.height / 2);
    final radius = size.width / 2 - 20;

    final backgroundPaint = Paint()
      ..color = const Color(0xFFE5E5E5)
      ..style = PaintingStyle.stroke
      ..strokeWidth = 12;

    canvas.drawArc(
      Rect.fromCircle(center: center, radius: radius),
      -math.pi * 1.25,
      math.pi * 2.5,
      false,
      backgroundPaint,
    );

    final progress = value / maxValue;
    final progressPaint = Paint()
      ..color = const Color(0xFF1677FF)
      ..style = PaintingStyle.stroke
      ..strokeWidth = 12
      ..strokeCap = StrokeCap.round;

    canvas.drawArc(
      Rect.fromCircle(center: center, radius: radius),
      -math.pi * 1.25,
      math.pi * 2.5 * progress,
      false,
      progressPaint,
    );

    final tickPaint = Paint()..color = const Color(0xFF888888);
    final textStyle = const TextStyle(fontSize: 10, color: Color(0xFF888888));
    final textPainter = TextPainter(textDirection: TextDirection.ltr);

    for (int i = 0; i < majorTicks.length; i++) {
      final tickValue = majorTicks[i];
      final tickProgress = tickValue / maxValue;
      final angle = -math.pi * 1.25 + math.pi * 2.5 * tickProgress;
      final innerRadius = radius - 20;
      final outerRadius = radius - 8;

      final start = Offset(
        center.dx + innerRadius * math.cos(angle),
        center.dy + innerRadius * math.sin(angle),
      );
      final end = Offset(
        center.dx + outerRadius * math.cos(angle),
        center.dy + outerRadius * math.sin(angle),
      );

      canvas.drawLine(start, end, tickPaint);

      final labelRadius = radius - 35;
      final labelOffset = Offset(
        center.dx + labelRadius * math.cos(angle),
        center.dy + labelRadius * math.sin(angle),
      );

      textPainter.text = TextSpan(text: tickValue.toString(), style: textStyle);
      textPainter.layout();
      textPainter.paint(
        canvas,
        Offset(
          labelOffset.dx - textPainter.width / 2,
          labelOffset.dy - textPainter.height / 2,
        ),
      );
    }
  }

  @override
  bool shouldRepaint(covariant CircularGaugePainter oldDelegate) {
    return value != oldDelegate.value || maxValue != oldDelegate.maxValue;
  }
}