# PowerManager系统架构优化设计方案

## 1. 总体架构
```mermaid
classDiagram
    class PowerManagerCore {
        +startup()
        +shutdown()
        +getSystemState()
    }

    class StateMachineService {
        +triggerEvent()
        +getCurrentState()
        +addStateListener()
    }

    class CommunicationMediator {
        +registerHandler()
        +sendMessage()
        +addMessageListener()
    }

    PowerManagerCore --> StateMachineService
    PowerManagerCore --> CommunicationMediator
```

## 2. 状态机重构方案

### 2.1 状态设计模式
```cpp
class IPowerState {
public:
    virtual void onEntry(PowerContext&) = 0;
    virtual void handleEvent(PowerContext&, const Event&) = 0;
    virtual void onExit(PowerContext&) = 0;
};
```

### 2.2 状态转换规则
```yaml
# states_config.yaml
transitions:
  - from: STANDBY
    event: START_CMD
    to: OPERATING
  - from: OPERATING
    event: STOP_CMD
    to: STANDBY
```

## 3. 通信中介者设计

### 3.1 核心架构
```mermaid
sequenceDiagram
    participant Upper as 上位机
    participant Mediator as 通信中介者
    participant Lower as 下位机
    
    Upper->>Mediator: 控制命令(JSON)
    Mediator->>Lower: 设备指令(ProtocolBuffer)
    Lower->>Mediator: 状态更新
    Mediator->>Upper: 系统报告
```

### 3.2 关键实现
```cpp
class CommunicationMediator {
    // 线程安全消息队列
    moodycamel::ConcurrentQueue<Message> queue;
    
    // 消息处理线程
    void processMessages() {
        while (running) {
            Message msg;
            if (queue.try_dequeue(msg)) {
                handlers[msg.type]->handle(msg);
            }
        }
    }
};
```

## 4. 数据库服务设计

### 4.1 日志策略模式
```cpp
class ILogStrategy {
public:
    virtual bool log(const SystemLog& log) = 0;
};

class SQLiteLogStrategy : public ILogStrategy {
    // SQLite实现...
};

class FileLogStrategy : public ILogStrategy {
    // 文件系统实现...
};
```

## 5. 实施计划

### 5.1 阶段划分
```mermaid
gantt
    title 重构实施甘特图
    section 核心框架
    接口定义     :2025-04-08, 3d
    基础实现     :2025-04-11, 5d
    
    section 模块重构
    状态机      :2025-04-16, 5d
    通信模块    :2025-04-21, 5d
    
    section 测试验证
    单元测试    :2025-04-26, 3d
    集成测试    :2025-04-29, 5d
```

## 6. 性能指标

| 模块           | 当前QPS | 目标QPS | 优化手段               |
|----------------|---------|---------|-----------------------|
| 状态机处理     | 100     | 500     | 无锁状态转换          |
| 消息处理       | 200     | 1000    | 批量处理+线程池       |
| 数据库写入     | 50      | 300     | 异步写入+批量提交     |