feat: 修复了插件需要外部Provider的问题；加上了一个简易的车控状态返回

lib/bloc/ai_chat_cubit.dart

@@ -0,0 +1,24 @@
+import '../enums/vehicle_command_type.dart';
+import '../services/command_service.dart';
+import 'easy_bloc.dart';
+import 'command_state.dart';
+
+class AIChatCommandCubit extends EasyCubit<AIChatCommandState> {
+  AIChatCommandCubit() : super(const AIChatCommandState());
+
+  // 重置状态
+  void reset() {
+    emit(const AIChatCommandState());
+  }
+
+  // 生成唯一命令ID
+  String _generateCommandId() {
+    return '${DateTime.now().millisecondsSinceEpoch}_${state.commandType?.name ?? 'unknown'}';
+  }
+
+  // 检查当前是否有命令在执行
+  bool get isExecuting => state.status == AIChatCommandStatus.executing;
+
+  // 获取当前命令ID
+  String? get currentCommandId => state.commandId;
+}

lib/bloc/command_state.dart

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+import '../enums/vehicle_command_type.dart';
+
+// AI Chat Command States
+enum AIChatCommandStatus {
+  idle,
+  executing,
+  success,
+  failure,
+  cancelled,
+}
+
+class AIChatCommandState {
+  final String? commandId;
+  final VehicleCommandType? commandType;
+  final Map<String, dynamic>? params;
+  final AIChatCommandStatus status;
+  final String? errorMessage;
+  final Map<String, dynamic>? result;
+  final DateTime? timestamp;
+
+  const AIChatCommandState({
+    this.commandId,
+    this.commandType,
+    this.params,
+    this.status = AIChatCommandStatus.idle,
+    this.errorMessage,
+    this.result,
+    this.timestamp,
+  });
+
+  AIChatCommandState copyWith({
+    String? commandId,
+    VehicleCommandType? commandType,
+    Map<String, dynamic>? params,
+    AIChatCommandStatus? status,
+    String? errorMessage,
+    Map<String, dynamic>? result,
+    DateTime? timestamp,
+  }) {
+    return AIChatCommandState(
+      commandId: commandId ?? this.commandId,
+      commandType: commandType ?? this.commandType,
+      params: params ?? this.params,
+      status: status ?? this.status,
+      errorMessage: errorMessage ?? this.errorMessage,
+      result: result ?? this.result,
+      timestamp: timestamp ?? this.timestamp,
+    );
+  }
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(this, other)) return true;
+    return other is AIChatCommandState &&
+        other.commandId == commandId &&
+        other.commandType == commandType &&
+        other.status == status &&
+        other.errorMessage == errorMessage;
+  }
+
+  @override
+  int get hashCode {
+    return commandId.hashCode ^
+    commandType.hashCode ^
+    status.hashCode ^
+    errorMessage.hashCode;
+  }
+}

lib/bloc/easy_bloc.dart

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+import 'dart:async';
+
+import 'package:meta/meta.dart';
+
+// 简易的Bloc, 简易的状态管理
+
+abstract class EasyBlocBase<State> {
+
+  EasyBlocBase(this.state): assert(state != null);
+
+  final StreamController<State> _stateController = StreamController<State>.broadcast();
+
+  Stream<State> get stream => _stateController.stream;
+  State state;
+
+  bool _emitted = false;
+
+  // 添加监听器方法
+  StreamSubscription<State> listen(
+      void Function(State state) onData, {
+        Function? onError,
+        void Function()? onDone,
+        bool? cancelOnError,
+      }) {
+    return stream.listen(
+      onData,
+      onError: onError,
+      onDone: onDone,
+      cancelOnError: cancelOnError,
+    );
+  }
+
+  // 新状态
+  void emit(State newState) {
+    if (_stateController.isClosed) return;
+    if (newState == state && _emitted) return;
+    this.state = newState;
+    _stateController.add(state);
+    _emitted = true;
+  }
+
+  @mustCallSuper
+  Future<void> close() async {
+    await _stateController.close();
+  }
+}
+
+class EasyBloc<Event, State> extends EasyBlocBase<State> {
+  EasyBloc(State initialState) : super(initialState) {
+    _eventController.stream.listen(_mapEventToState);
+  }
+
+  final StreamController<Event> _eventController = StreamController<Event>();
+
+  // 子类需要实现这个方法来处理事件
+  @mustBeOverridden
+  void _mapEventToState(Event event) {
+    // 默认不做任何处理，如果不实现会抛出异常
+    throw UnimplementedError('_mapEventToState must be implemented by subclasses');
+  }
+
+  // 添加事件
+  void add(Event event) {
+    if (_eventController.isClosed) return;
+    _eventController.add(event);
+  }
+
+  @override
+  Future<void> close() async {
+    await _eventController.close();
+    await super.close();
+  }
+}
+
+class EasyCubit<State> extends EasyBlocBase<State> {
+  EasyCubit(State initialState) : super(initialState);
+}
+