feature-next-arch/lib/features/devices/presentation/bloc/devices_cubit.dart

import 'dart:convert';
import 'dart:collection';

import 'package:flutter/rendering.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:get_it/get_it.dart';
import 'package:maibu_satabot_v2/features/devices/domain/entities/device_entity.dart';
import 'package:maibu_satabot_v2/features/devices/domain/repositories/device_repository.dart';
import 'package:maibu_satabot_v2/features/devices/domain/usecases/generate_path_usecase.dart';
import 'package:maibu_satabot_v2/features/devices/domain/usecases/get_user_device_usecase.dart';
import 'package:maibu_satabot_v2/features/devices/data/models/work_record_entity.dart';
import 'package:maibu_satabot_v2/features/devices/domain/usecases/save_work_record_usecase.dart';
import 'package:maibu_satabot_v2/features/devices/domain/usecases/select_work_record_usecase.dart';
import 'package:maibu_satabot_v2/features/devices/domain/usecases/unbind_device_usecase.dart';
import 'package:maibu_satabot_v2/features/devices/domain/usecases/update_devicename_usecase.dart';

import '../../../../core/consts/tcp_consts.dart';
import '../../../../core/logging/i_logger_service.dart';
import '../../../../core/network/tcp/tcp_client.dart';
import '../../../../core/network/mqtt/domain/repositories/task_message_repository.dart';
import '../../data/models/device_add_path_point_model.dart';
import '../../data/models/device_work_area_param_model.dart';
import '../../domain/usecases/bind_device_usecase.dart';
import '../../domain/usecases/delete_work_record_usecase.dart';
import '../../domain/usecases/get_device_location_usecase.dart';
import '../../domain/usecases/get_work_record_usecase.dart';
import '../../domain/usecases/get_work_records_by_site_id_usecase.dart';
import '../../domain/usecases/route_planning_usecase.dart';
import '../../services/path_planning_service.dart';
import 'device_status_bloc.dart';
import 'device_status_event.dart';
import 'devices_state.dart';

// 定义全局的TaskMessageRepository获取方式
TaskMessageRepository get _taskMessageRepo => GetIt.I<TaskMessageRepository>();

class DevicesCubit extends Cubit<DevicesState> {
  final GetUserDeviceUseCase _getUserDeviceUseCase;
  final GetDeviceLocationUseCase _getDeviceLocationUseCase;
  final DeviceRepository repository;
  final GetWorkRecordUseCase _getWorkRecordUseCase;
  final GetWorkRecordsBySiteIdUseCase _getWorkRecordsBySiteIdUseCase;
  final DeleteWorkRecordUseCase _deleteWorkRecordUseCase;
  final BindDeviceUseCase _bindDeviceUseCase;
  final UnbindDeviceUseCase _unbindDeviceUseCase;
  final UpdateDevicenameUsecase _updateDevicename;
  final SelectWorkRecordUseCase _selectWorkRecordUseCase;
  final SaveWorkRecordUseCase _saveWorkRecordUseCase;
  final GeneratePathUseCase _generatePathUseCase;
  final RoutePlanningUseCase _routePlanningUseCase; //
  final DeviceStatusBloc _deviceStatusBloc; // 🔥 新增字段
  final TcpClient _tcpClient;
  // 🔥 关键：注入全局服务
  final PathPlanningService _pathPlanningService;

  final ILoggerService _logger = GetIt.I<ILoggerService>();

  DevicesCubit(
    this.repository,
    this._getUserDeviceUseCase,
    this._getDeviceLocationUseCase,
    this._getWorkRecordUseCase,
    this._getWorkRecordsBySiteIdUseCase,
    this._deleteWorkRecordUseCase,
    this._unbindDeviceUseCase,
    this._updateDevicename,
    this._selectWorkRecordUseCase,
    this._saveWorkRecordUseCase,
    this._generatePathUseCase,
    this._routePlanningUseCase,
    this._bindDeviceUseCase,
    this._deviceStatusBloc,
    this._tcpClient,
    this._pathPlanningService,
  ) : super(const DevicesState());

  Future<void> unbindDevice(String deviceId, String deviceName) async {
    emit(
      state.copyWith(
        isLoading: true,
        errorMessage: '',
        operationType: DeviceOperationType.unbind,
      ),
    );

    try {
      final params = UnbindDeviceParams(deviceId, deviceName);
      final result = await _unbindDeviceUseCase.call(params);

      result.fold(
        (failure) => emit(
          state.copyWith(
            isLoading: false,
            errorMessage: failure.message ?? '解绑设备失败',
            operationType: DeviceOperationType.none, // 操作结束重置
          ),
        ),
        (successCode) {
          // 核心修复：int 转 bool 条件判断
          final isSuccess = successCode == 1; // 显式转为 bool
          if (isSuccess) {
            final updatedDevices = state.devices?.where((device) {
              return device.deviceName != deviceId;
            }).toList();

            emit(
              state.copyWith(
                isLoading: false,
                devices: updatedDevices,
                selectedDevice: state.selectedDevice?.deviceName == deviceId
                    ? null
                    : state.selectedDevice,
                errorMessage: '',
                operationType: DeviceOperationType.none,
              ),
            );
          } else {
            emit(
              state.copyWith(
                isLoading: false,
                errorMessage: '解绑失败：状态码 $successCode',
                operationType: DeviceOperationType.none,
              ),
            );
          }
        },
      );
    } catch (e) {
      emit(
        state.copyWith(
          isLoading: false,
          errorMessage: '解绑异常：${e.toString()}',
          operationType: DeviceOperationType.none,
        ),
      );
    }
  }

  Future<void> updateDeviceName(String deviceId, String deviceName) async {
    emit(
      state.copyWith(
        isLoading: true,
        errorMessage: '',
        operationType: DeviceOperationType.updateName,
      ),
    );

    try {
      final params = UpdateDevicenameParams(deviceId, deviceName);
      final result = await _updateDevicename.call(params);

      result.fold(
        (failure) => emit(
          state.copyWith(
            isLoading: false,
            errorMessage: failure.message ?? '更新设备名称失败',
            operationType: DeviceOperationType.none,
          ),
        ),
        (successCode) {
          // 核心修复：int 转 bool 条件判断
          //print('更新设备名称结果代码: $successCode'); // 调试输出结果代码
          _logger.logWithLevel('更新设备名称结果代码: $successCode');
          final isSuccess = successCode == 1; // 显式转为 bool
          if (isSuccess) {
            //final updatedDevices = state.devices?.map((device) {
            //  return device.deviceName == deviceId ? device.copyWith(deviceName: deviceName) : device;
            //}).toList();

            emit(
              state.copyWith(
                isLoading: false,
                //devices: updatedDevices,
                //selectedDevice: state.selectedDevice?.deviceName == deviceId ? state.selectedDevice?.copyWith(deviceName: deviceName) : state.selectedDevice,
                errorMessage: '',
                operationType: DeviceOperationType.none,
              ),
            );
          } else {
            emit(
              state.copyWith(
                isLoading: false,
                errorMessage: '更新设备名称失败：状态码 $successCode',
                operationType: DeviceOperationType.none,
              ),
            );
          }
        },
      );
    } catch (e) {
      emit(
        state.copyWith(
          isLoading: false,
          errorMessage: '更新设备名称异常：${e.toString()}',
          operationType: DeviceOperationType.none,
        ),
      );
    }
  }

  // 获取所有设备列表
  // 获取所有设备列表
  Future<void> fetchAllDevices(String username) async {
    emit(state.copyWith(isLoading: true));

    try {
      // 🔥 关键步骤1：记录刷新前的选中设备标识（用 deviceName 作为唯一标识）
      final String? oldSelectedDeviceName = state.selectedDevice?.deviceName;

      // 网络请求获取新列表
      var resultEither = await _getUserDeviceUseCase.call(
        GetUserDeviceParams(username),
      );

      resultEither.fold(
        (failure) => emit(
          state.copyWith(isLoading: false, errorMessage: failure.message),
        ),
        (deviceList) {
          // 🔥 关键步骤2：匹配新列表中对应的旧选中设备
          DeviceEntity? newSelectedDevice;
          if (oldSelectedDeviceName != null && deviceList.isNotEmpty) {
            // 在新列表中查找和旧选中设备名称一致的设备
            newSelectedDevice = deviceList.firstWhere(
              (device) => device.deviceName == oldSelectedDeviceName,
              // 如果找不到（如设备已解绑），返回 null
              orElse: () => deviceList.first, // 兜底：选中第一个
            );
          } else {
            // 无旧选中设备，默认选中第一个
            newSelectedDevice = deviceList.isNotEmpty ? deviceList.first : null;
          }

          // 🔥 关键步骤3：更新状态，使用匹配后的选中设备
          emit(
            state.copyWith(
              devices: deviceList,
              selectedDevice: newSelectedDevice, // 保留旧选中设备
              isLoading: false,
            ),
          );
        },
      );
    } catch (e) {
      emit(state.copyWith(isLoading: false, errorMessage: e.toString()));
    }
  }

  // 切换当前选中的设备
  void selectDevice(DeviceEntity device) {
    emit(state.copyWith(selectedDevice: device));
  }

  // 更新单个设备的状态（例如从 Tcp 收到实时电量更新）
  void updateDeviceStatus(DeviceEntity updatedDevice) {
    final newList = state.devices.map((d) {
      return d.deviceName == updatedDevice.deviceName ? updatedDevice : d;
    }).toList();

    // 如果更新的是当前选中的设备，也要同步更新 selectedDevice
    final newSelected =
        state.selectedDevice?.deviceName == updatedDevice.deviceName
        ? updatedDevice
        : state.selectedDevice;

    emit(state.copyWith(devices: newList, selectedDevice: newSelected));
  }

  /// 切换设备
  Future<void> switchDevice(DeviceEntity device) async {
    // 保持现有列表，只改 loading
    emit(state.copyWith(isLoading: true));

    final result = await repository.switchDevice("app", device.deviceName);

    result.fold(
      // 失败处理
      (l) {
        emit(state.copyWith(isLoading: false, errorMessage: l.message));
        selectDevice(device);
      },
      // 成功处理：改为 async 函数块
      (r) async {
        // 🔥 关键修复：不再断开 TCP 并重新连接
        // TCP 已在登录时建立，设备切换只用 HTTP
        // 避免创建新 TCP 连接发送 0x03 触发服务端推送 have_logged_in
        
        // 重置设备状态 Bloc，清除旧设备图表数据
        _deviceStatusBloc.add(DeviceStatusReset());

        debugPrint('✅ 新设备切换完成（HTTP-only，无新TCP连接）: ${device.deviceName}');

        emit(state.copyWith(isLoading: false, selectedDevice: device));
      },
    );
  }

  /// 绑定设备
  Future<void> bindDevice(String deviceId, String deviceAlias) async {
    emit(state.copyWith(isLoading: true, errorMessage: ''));
    try {
      final params = BindDeviceParams(deviceId, deviceAlias);
      final result = await _bindDeviceUseCase.call(params);
      result.fold(
        // 失败处理
        (failure) {
          emit(
            state.copyWith(
              isLoading: false,
              errorMessage: failure.message ?? '绑定设备失败',
            ),
          );
          // 抛出异常，携带后端返回的错误消息（如“设备不存在”）
          throw Exception(failure.message ?? '绑定设备失败');
        },
        // 成功处理（返回 int 状态码）
        (successCode) {
          if (successCode == 1) {
            emit(state.copyWith(isLoading: false, errorMessage: ''));
            // 绑定成功后刷新设备列表
            //fetchAllDevices(state.?.username ?? '');
          } else {
            emit(
              state.copyWith(
                isLoading: false,
                errorMessage: '绑定失败：状态码 $successCode',
              ),
            );
          }
        },
      );
    } catch (e) {
      // emit(state.copyWith(
      //   isLoading: false,
      //   errorMessage: '绑定异常：${e.toString()}',
      // ));
      // 🔥 重新抛出，传递给 UI
      rethrow;
    }
  }

  /// 获取设备位置
  Future<void> getDeviceLocation(DeviceEntity device) async {
    emit(state.copyWith(isLoading: true));
    final result = await _getDeviceLocationUseCase.call(device.deviceName);
    result.fold(
      (failure) =>
          emit(state.copyWith(isLoading: false, errorMessage: failure.message)),
      (location) => emit(
        state.copyWith(
          isLoading: false,
          deviceLatitude: location.latitude,
          deviceLongitude: location.longitude,
        ),
      ),
    );
  }

  ///获取记录
  Future<void> loadWorkRecords(String userId) async {
    emit(state.copyWith(isLoading: true));
    final result = await _getWorkRecordUseCase(userId);
    result.fold(
      (failure) =>
          emit(state.copyWith(isLoading: false, errorMessage: failure.message)),
      (records) => emit(state.copyWith(isLoading: false, workRecords: records)),
    );
  }

  /// 根据场站ID获取工作记录（XML格式接口）
  Future<void> loadWorkRecordsBySiteId(int siteId) async {
    print('🔍 [DevicesCubit] 开始加载场站ID=$siteId的工作记录');
    emit(state.copyWith(isLoading: true));
    final result = await _getWorkRecordsBySiteIdUseCase(siteId);
    result.fold(
      (failure) {
        print('❌ [DevicesCubit] 加载失败: ${failure.message}');
        emit(state.copyWith(isLoading: false, errorMessage: failure.message));
      },
      (records) {
        // print('🔍 [DevicesCubit] 加载成功，记录数: ${records.length}');
        // 将 WorkRecordEntity 转换为 Map<String, dynamic> 以兼容现有UI
        final mappedRecords = records.map((record) {
          // 🔥 核心修复：根据 jsonData 类型决定存储方式
          // XML接口返回的已是 JSON 字符串，直接使用，避免二次序列化丢失路径数据
          // JSON接口返回的 WorkRecordJsonData 对象，仍需序列化
          String? jsonDataStr;
          if (record.jsonData is String) {
            jsonDataStr = record.jsonData as String;
          } else if (record.jsonData is WorkRecordJsonData) {
            jsonDataStr = _workRecordJsonDataToJson(record.jsonData as WorkRecordJsonData);
          }
          return <String, dynamic>{
            'id': record.id.toString(),
            'workName': record.workName,
            'imgUrl': record.imgUrl ?? '',
            'jsonData': jsonDataStr,
          };
        }).toList();
        // print('🔍 [DevicesCubit] 转换后的数据: $mappedRecords');
        emit(state.copyWith(isLoading: false, workRecords: mappedRecords));
      },
    );
  }

  /// 将 WorkRecordJsonData 转换为 JSON 字符串
  String _workRecordJsonDataToJson(dynamic jsonData) {
    // 将 jsonData 对象序列化为 JSON 字符串供UI使用
    if (jsonData is WorkRecordJsonData) {
      return jsonEncode({
        'name': jsonData.name,
        'path': jsonData.path,
        'outer': jsonData.outer,
        'img': jsonData.img,
        'planModel': jsonData.planModel,
      });
    }
    return jsonData.toString();
  }

  /// 删除工作记录
  Future<void> deleteWorkRecord(String workName) async {
    emit(state.copyWith(isLoading: true));
    final result = await _deleteWorkRecordUseCase(workName);
    result.fold(
      (failure) =>
          emit(state.copyWith(isLoading: false, errorMessage: failure.message)),
      (_) => emit(
        state.copyWith(
          isLoading: false,
          workRecords: state.workRecords
              ?.where((record) => record != workName)
              .toList(),
        ),
      ),
    );
  }

  /// 加载指定作业名的路径数据
  Future<void> loadSelectedPath(String workName) async {
    emit(state.copyWith(isLoading: true));
    try {
      final result = await _selectWorkRecordUseCase.call(workName);
      result.fold(
        (failure) => emit(
          state.copyWith(isLoading: false, errorMessage: failure.message),
        ),
        (data) => emit(state.copyWith(isLoading: false, pathData: data)),
      );
    } catch (e) {
      emit(state.copyWith(isLoading: false, errorMessage: e.toString()));
    }
  }

  /// 保存路径数据
  Future<void> saveWorkRecord(
    String workName,
    String userId,
    String jsonData,
  ) async {
    emit(state.copyWith(isLoading: true));
    final result = await _saveWorkRecordUseCase.call(
      workName: workName,
      userId: userId,
      jsonData: jsonData,
    );
    result.fold(
      (failure) =>
          emit(state.copyWith(isLoading: false, errorMessage: failure.message)),
      (data) => emit(state.copyWith(isLoading: false)),
    );
  }

  /// generatePath
  Future<void> generatePath({
    required ReferencePoint reference,
    required int heading,
    required OuterBoundary outer,
    required Map<String, HoleBoundary> holes,
    required int workType,
  }) async {
    //holes.asMap().forEach((index, hole) {
    //  final pointsStr = hole.position.map((p) => "(${p.lat.toStringAsFixed(6)}, ${p.lon.toStringAsFixed(6)})").join(', ');
    //  debugPrint('第${index + 1}组holes：$pointsStr');
    //});
    emit(state.copyWith(isLoading: true));
    final result = await _generatePathUseCase.execute(
      reference: reference,
      heading: heading,
      outer: outer,
      holes: holes,
      workType: workType,
    );

    result.fold(
      (failure) => emit(state.copyWith(errorMessage: failure.message)),
      (pathData) => emit(state.copyWith(generatedPath: pathData)),
    );
  }

  // 开始路径规划
  Future<void> startRoutePlanning(
    Queue<DeviceAddPathPointModel> locationQueue,
  ) async {
    /// print("cubit层开始路径规划");
    _logger.logWithLevel('开始路径规划');
    // 清空全局 Service 中的队列
    // _routePlanningUseCase.clearLocationQueue();
    final List<DeviceAddPathPointModel> pathList = locationQueue.toList();
    // print('✅ 队列转换为 List，长度：${pathList.length}');
    _logger.logWithLevel('队列转换为 List，长度：${pathList.length}');

    _pathPlanningService.updateQueue(pathList);
    //print('✅ 队列更新成功');
    _logger.logWithLevel('队列更新成功');

    // 开始路径规划
    emit(state.copyWith(isLoading: true));
    //传入全局的Service 中路径规划队列
    Queue<DeviceAddPathPointModel> queue = _pathPlanningService.getQueue();
    //print('📦 从 Service 获取的队列长度：${queue.length}');
    _logger.logWithLevel('从 Service 获取的队列长度：${queue.length}');
    final result = await _routePlanningUseCase.startRoutePlanning(queue);
    result.fold(
      (failure) => emit(
        state.copyWith(
          isLoading: false,
          errorMessage: failure.message ?? '路径规划启动失败',
        ),
      ),
      (_) => emit(state.copyWith(isLoading: false, errorMessage: '')),
    );
  }

  // 暂停
  Future<void> pauseRoutePlanning() async {
    emit(state.copyWith(isLoading: true));
    final result = await _routePlanningUseCase.pauseRPWork();
    result.fold(
      (failure) => emit(
        state.copyWith(
          isLoading: false,
          errorMessage: failure.message ?? '暂停失败',
        ),
      ),
      (_) => emit(state.copyWith(isLoading: false)),
    );
  }

  // 恢复
  Future<void> resumeRoutePlanning() async {
    emit(state.copyWith(isLoading: true));
    final result = await _routePlanningUseCase.resumeRPWork();
    result.fold(
      (failure) => emit(
        state.copyWith(
          isLoading: false,
          errorMessage: failure.message ?? '恢复失败',
        ),
      ),
      (_) => emit(state.copyWith(isLoading: false)),
    );
  }

  // 停止
  Future<void> stopRoutePlanning() async {
    emit(state.copyWith(isLoading: true));
    final result = await _routePlanningUseCase.stopRoutePlanning();

    // 🔥 重置 PathPlanningService 中的全局的队列
    _pathPlanningService.clear();
    result.fold(
      (failure) => emit(
        state.copyWith(
          isLoading: false,
          errorMessage: failure.message ?? '停止失败',
        ),
      ),
      (_) => emit(state.copyWith(isLoading: false)),
    );
  }

  void updateAppState(AppState appState) {
    emit(state.copyWith(appState: appState));
    (_routePlanningUseCase as dynamic).repository.setAppState(appState);
  }

  void finishWork() {
    emit(state.copyWith(isFinshWork: true));
  }

  /// 重置完成状态
  void resetWorkStatus() {
    emit(state.copyWith(isFinshWork: false));
  }

  void setArrivedLocation(double latitude, double longitude) {
    emit(state.copyWith(arriLatitude: latitude, arriLongitude: longitude));
    // print('✅ [DevicesCubit] 监听更新已完成到达位置：Lat=$latitude, Lng=$longitude');
    _logger.logWithLevel(
      '✅ [DevicesCubit] 监听更新已完成到达位置：Lat=$latitude, Lng=$longitude',
    );
  }

  //获取已到达的点的经纬度
  (double, double) getArrivedLocation() {
    return (state.arriLatitude ?? 0.0, state.arriLongitude ?? 0.0);
  }

  // 重置已到达记录
  void resetArrivedLocation() {
    emit(state.copyWith(arriLatitude: null, arriLongitude: null));
    //print('🔄 [DevicesCubit] 已重置到达位置');
    _logger.logWithLevel('🔄 [DevicesCubit] 已重置到达位置');
  }

  /// 🔥 获取当前选中的设备
  DeviceEntity? getSelectedDevice() {
    return state.selectedDevice;
  }

  /// 🔥 异步获取当前选中的设备（兼容 RemoteControlCubit 接口）
  Future<DeviceEntity?> getDevice() async {
    return state.selectedDevice;
  }

  /// 🔥 判断是否有选中设备
  bool hasSelectedDevice() {
    return state.selectedDevice != null;
  }

  /// 🔥 获取选中设备名称（安全获取，返回空字符串而非null）
  String getSelectedDeviceName() {
    return state.selectedDevice?.deviceName ?? '';
  }

  /// 🔥 获取选中设备ID（安全获取，返回空字符串而非null）
  String getSelectedDeviceId() {
    return state.selectedDevice?.deviceName ?? '';
  }

  /// 🔥 清除选中设备
  void clearSelectedDevice() {
    debugPrint('🧹 [DevicesCubit] 清除选中设备');
    _logger.logWithLevel('🧹 [DevicesCubit] 清除选中设备');
    emit(state.copyWith(selectedDevice: null));
  }

  /// 🔥 检查设备是否在列表中
  bool isDeviceInList(String deviceName) {
    return state.devices.any((device) => device.deviceName == deviceName);
  }

  /// 🔥 根据设备名称查找设备
  DeviceEntity? findDeviceByName(String deviceName) {
    try {
      return state.devices.firstWhere(
        (device) => device.deviceName == deviceName,
        orElse: () => throw Exception('Device not found'),
      );
    } catch (e) {
      return null;
    }
  }

  /// 🔥 启动MQTT到达点监听（用于路径规划动画）
  /// [deviceId] - 目标设备ID，即targetDevice的deviceId
  /// [taskId] - 任务ID，用于订阅 task/{taskId}/status 和 task/{taskId}/arrive
  Future<void> startListeningMqttArrive({required String deviceId, required int taskId}) async {
    debugPrint('📡 [DevicesCubit] 启动MQTT到达点监听 - deviceId: $deviceId, taskId: $taskId');
    _logger.logWithLevel('📡 [DevicesCubit] 启动MQTT到达点监听 - deviceId: $deviceId, taskId: $taskId');

    try {
      // 启动MQTT订阅
      await _taskMessageRepo.startListening(deviceId: deviceId, taskId: taskId);

      // 设置DeviceStatusBloc监听的设备ID
      _deviceStatusBloc.setListeningDeviceId(deviceId);

      debugPrint('✅ [DevicesCubit] MQTT到达点监听已启动');
      _logger.logWithLevel('✅ [DevicesCubit] MQTT到达点监听已启动');
    } catch (e) {
      debugPrint('❌ [DevicesCubit] 启动MQTT监听失败: $e');
      _logger.logWithLevel('❌ [DevicesCubit] 启动MQTT监听失败: $e');
      rethrow;
    }
  }

  /// 🔥 停止MQTT到达点监听
  Future<void> stopListeningMqttArrive() async {
    debugPrint('🛑 [DevicesCubit] 停止MQTT到达点监听');
    _logger.logWithLevel('🛑 [DevicesCubit] 停止MQTT到达点监听');

    try {
      await _taskMessageRepo.stopListening();
      _deviceStatusBloc.setListeningDeviceId('');
      debugPrint('✅ [DevicesCubit] MQTT到达点监听已停止');
      _logger.logWithLevel('✅ [DevicesCubit] MQTT到达点监听已停止');
    } catch (e) {
      debugPrint('❌ [DevicesCubit] 停止MQTT监听失败: $e');
      _logger.logWithLevel('❌ [DevicesCubit] 停止MQTT监听失败: $e');
    }
  }
}