【案例实战】初探鸿蒙开放能力：从好奇到实战的技术发现之旅

@Entry
@Component
struct Index {
  @State message: string = 'Hello HarmonyOS'

  build() {
    Row() {
      Column() {
        Text(this.message)
          .fontSize(50)
          .fontWeight(FontWeight.Bold)
          .onClick(() => {
            this.message = 'Welcome to HarmonyOS!'
          })
      }
      .width('100%')
    }
    .height('100%')
  }
}

// 用户信息数据模型
interface UserProfile {
  uid: string;
  nickname: string;
  avatar: string;
  createTime: number;
  lastLoginTime: number;
  preferences: {
    theme: string;
    language: string;
    notifications: boolean;
  };
}

// 文章数据模型
interface Article {
  id: string;
  title: string;
  content: string;
  author: string;
  tags: string[];
  publishTime: number;
  viewCount: number;
  likeCount: number;
}

// 监听文章点赞数变化
cloudDB.addDataChangeListener('articles', (snapshot) => {
  snapshot.getUpsertedObjects().forEach((article: Article) => {
    // 更新UI显示
    this.updateArticleLikeCount(article.id, article.likeCount);
  });
});

// 云函数：根据用户喜好推荐文章
exports.main = async (event, context) => {
  const { uid, limit = 10 } = event;
  
  try {
    // 获取用户历史行为
    const userBehavior = await db.collection('user_behavior')
      .where('uid', '==', uid)
      .get();
    
    // 分析用户兴趣标签
    const interestTags = analyzeUserInterests(userBehavior.data);
    
    // 推荐相关文章
    const recommendedArticles = await db.collection('articles')
      .where('tags', 'array-contains-any', interestTags)
      .orderBy('publishTime', 'desc')
      .limit(limit)
      .get();
    
    return {
      success: true,
      data: recommendedArticles.data
    };
  } catch (error) {
    return {
      success: false,
      error: error.message
    };
  }
};

// 用户登录流程测试
describe('用户登录测试', () => {
  test('正常登录流程', async () => {
    // 启动应用
    await driver.startApp('com.example.harmonyapp');
    
    // 点击登录按钮
    await driver.findComponent(By.text('登录')).click();
    
    // 输入用户名
    await driver.findComponent(By.id('username_input'))
      .inputText('testuser@example.com');
    
    // 输入密码
    await driver.findComponent(By.id('password_input'))
      .inputText('password123');
    
    // 点击登录
    await driver.findComponent(By.id('login_button')).click();
    
    // 验证登录成功
    const welcomeText = await driver.findComponent(By.text('欢迎回来'));
    expect(welcomeText).toBeTruthy();
  });
  
  test('错误密码处理', async () => {
    // 输入错误密码
    await driver.findComponent(By.id('password_input'))
      .inputText('wrongpassword');
    
    await driver.findComponent(By.id('login_button')).click();
    
    // 验证错误提示
    const errorMsg = await driver.findComponent(By.text('密码错误'));
    expect(errorMsg).toBeTruthy();
  });
});

// 云服务配置管理
export class CloudConfig {
  private static instance: CloudConfig;
  
  private constructor() {
    this.initAGConnect();
  }
  
  public static getInstance(): CloudConfig {
    if (!CloudConfig.instance) {
      CloudConfig.instance = new CloudConfig();
    }
    return CloudConfig.instance;
  }
  
  private initAGConnect() {
    // 初始化AGConnect服务
    AGConnectServicesConfig.init(getContext(this));
  }
  
  public getCloudDB() {
    return AGConnectCloudDB.getInstance();
  }
  
  public getCloudStorage() {
    return AGConnectStorageManagement.getInstance();
  }
}

// 云服务调用封装
export class CloudService {
  private static readonly MAX_RETRY = 3;
  
  public static async callWithRetry<T>(
    operation: () => Promise<T>,
    retryCount: number = 0
  ): Promise<T> {
    try {
      return await operation();
    } catch (error) {
      if (retryCount < this.MAX_RETRY) {
        console.log(`重试第${retryCount + 1}次`);
        await this.delay(1000 * Math.pow(2, retryCount));
        return this.callWithRetry(operation, retryCount + 1);
      }
      throw error;
    }
  }
  
  private static delay(ms: number): Promise<void> {
    return new Promise(resolve => setTimeout(resolve, ms));
  }
}

export class DataSyncManager {
  private localDB: LocalDatabase;
  private cloudDB: CloudDatabase;
  
  // 读取数据：优先本地，后台同步
  public async getData(query: Query): Promise<any[]> {
    // 先返回本地数据
    const localData = await this.localDB.query(query);
    
    // 后台同步云端数据
    this.syncFromCloud(query).then(cloudData => {
      if (this.hasDataChanged(localData, cloudData)) {
        this.updateLocalData(cloudData);
        this.notifyDataChanged(cloudData);
      }
    }).catch(error => {
      console.log('云端同步失败，使用本地数据', error);
    });
    
    return localData;
  }
  
  // 写入数据：本地优先，异步上传
  public async saveData(data: any): Promise<void> {
    // 立即保存到本地
    await this.localDB.save(data);
    
    // 异步上传到云端
    this.uploadToCloud(data).catch(error => {
      // 上传失败，标记为待同步
      this.markAsPendingSync(data);
    });
  }
}

import deviceManager from '@ohos.distributedHardware.deviceManager';

export class DeviceDiscoveryManager {
  private deviceManager: deviceManager.DeviceManager;
  private discoveredDevices: Array<deviceManager.DeviceInfo> = [];
  
  constructor() {
    this.initDeviceManager();
  }
  
  private async initDeviceManager() {
    try {
      this.deviceManager = deviceManager.createDeviceManager('com.example.smarthome');
      this.setupDeviceStateListener();
    } catch (error) {
      console.error('设备管理器初始化失败:', error);
    }
  }
  
  // 开始设备发现
  public startDeviceDiscovery() {
    const discoverParam = {
      subscribeId: 1,
      mode: 0xAA, // 主动发现模式
      medium: 0,   // 自动选择传输媒介
      freq: 2,     // 高频发现
      isSameAccount: false,
      isWakeRemote: false,
      capability: 1 // 发现所有能力设备
    };
    
    this.deviceManager.startDeviceDiscovery(discoverParam);
  }
  
  // 设备状态监听
  private setupDeviceStateListener() {
    this.deviceManager.on('deviceStateChange', (data) => {
      console.log('设备状态变化:', data);
      
      switch (data.action) {
        case deviceManager.DeviceStateChangeAction.READY:
          this.onDeviceReady(data.device);
          break;
        case deviceManager.DeviceStateChangeAction.OFFLINE:
          this.onDeviceOffline(data.device);
          break;
        case deviceManager.DeviceStateChangeAction.CHANGE:
          this.onDeviceChange(data.device);
          break;
      }
    });
    
    this.deviceManager.on('deviceFound', (data) => {
      console.log('发现新设备:', data);
      this.discoveredDevices.push(data.device);
      this.notifyDeviceFound(data.device);
    });
  }
  
  // 设备认证与连接
  public async authenticateDevice(deviceId: string): Promise<boolean> {
    return new Promise((resolve, reject) => {
      const authParam = {
        authType: 1, // PIN码认证
        appIcon: '',
        appThumbnail: '',
        extraInfo: {
          appName: '智能家居控制中心',
          appDescription: '连接并控制您的智能设备'
        }
      };
      
      this.deviceManager.authenticateDevice(deviceId, authParam, (err, data) => {
        if (err) {
          console.error('设备认证失败:', err);
          reject(err);
        } else {
          console.log('设备认证成功:', data);
          resolve(true);
        }
      });
    });
  }
}

// 媒体播放服务接口
interface IMediaPlayService {
  playVideo(videoUrl: string, startTime?: number): Promise<boolean>;
  pauseVideo(): Promise<boolean>;
  resumeVideo(): Promise<boolean>;
  seekTo(position: number): Promise<boolean>;
  getPlaybackState(): Promise<PlaybackState>;
}

// 服务提供端（智慧屏）
export class MediaPlayServiceProvider implements IMediaPlayService {
  private player: media.AVPlayer;
  
  constructor() {
    this.initPlayer();
    this.registerService();
  }
  
  private registerService() {
    // 注册分布式服务
    rpc.registerRemoteService('MediaPlayService', this);
  }
  
  public async playVideo(videoUrl: string, startTime: number = 0): Promise<boolean> {
    try {
      await this.player.reset();
      this.player.url = videoUrl;
      await this.player.prepare();
      
      if (startTime > 0) {
        await this.player.seek(startTime);
      }
      
      await this.player.play();
      return true;
    } catch (error) {
      console.error('视频播放失败:', error);
      return false;
    }
  }
  
  public async getPlaybackState(): Promise<PlaybackState> {
    return {
      isPlaying: this.player.state === 'playing',
      currentTime: this.player.currentTime,
      duration: this.player.duration,
      volume: this.player.volume
    };
  }
}

// 服务调用端（手机）
export class MediaController {
  private remoteService: IMediaPlayService;
  
  public async connectToDevice(deviceId: string): Promise<boolean> {
    try {
      // 获取远程设备服务
      this.remoteService = await rpc.getRemoteService(deviceId, 'MediaPlayService');
      return true;
    } catch (error) {
      console.error('连接远程服务失败:', error);
      return false;
    }
  }
  
  public async playVideoOnTV(videoUrl: string): Promise<void> {
    if (!this.remoteService) {
      throw new Error('未连接到远程设备');
    }
    
    const success = await this.remoteService.playVideo(videoUrl);
    if (!success) {
      throw new Error('视频播放失败');
    }
  }
}

express-query-service/
├── src/
│   ├── main/
│   │   ├── ets/
│   │   │   ├── entryability/
│   │   │   │   └── EntryAbility.ts
│   │   │   ├── pages/
│   │   │   │   ├── Index.ets
│   │   │   │   └── QueryResult.ets
│   │   │   └── common/
│   │   │       ├── utils/
│   │   │       └── constants/
│   │   └── resources/
│   └── ohosTest/
├── AppScope/
└── build-profile.json5

// 快递查询服务主页面
@Entry
@Component
struct ExpressQuery {
  @State trackingNumber: string = '';
  @State queryResult: ExpressInfo | null = null;
  @State isLoading: boolean = false;
  
  build() {
    Column({ space: 20 }) {
      // 标题区域
      Text('快递查询')
        .fontSize(24)
        .fontWeight(FontWeight.Bold)
        .margin({ top: 20 })
      
      // 输入区域
      TextInput({ placeholder: '请输入快递单号' })
        .width('90%')
        .height(50)
        .onChange((value: string) => {
          this.trackingNumber = value;
        })
      
      // 查询按钮
      Button('查询')
        .width('90%')
        .height(50)
        .enabled(this.trackingNumber.length > 0 && !this.isLoading)
        .onClick(() => {
          this.queryExpress();
        })
      
      // 结果显示区域
      if (this.isLoading) {
        LoadingProgress()
          .width(50)
          .height(50)
      } else if (this.queryResult) {
        this.buildResultView();
      }
    }
    .width('100%')
    .height('100%')
    .padding(20)
  }
  
  @Builder
  buildResultView() {
    Column({ space: 15 }) {
      Text(`快递公司：${this.queryResult.company}`)
        .fontSize(16)
      
      Text(`当前状态：${this.queryResult.status}`)
        .fontSize(16)
        .fontColor(this.getStatusColor(this.queryResult.status))
      
      List() {
        ForEach(this.queryResult.traces, (trace: TraceInfo, index: number) => {
          ListItem() {
            Row() {
              Column() {
                Circle({ width: 10, height: 10 })
                  .fill(index === 0 ? Color.Green : Color.Gray)
                
                if (index < this.queryResult.traces.length - 1) {
                  Line()
                    .width(2)
                    .height(30)
                    .stroke(Color.Gray)
                }
              }
              .width(20)
              
              Column({ space: 5 }) {
                Text(trace.description)
                  .fontSize(14)
                  .fontWeight(index === 0 ? FontWeight.Bold : FontWeight.Normal)
                
                Text(trace.time)
                  .fontSize(12)
                  .fontColor(Color.Gray)
              }
              .alignItems(HorizontalAlign.Start)
              .layoutWeight(1)
            }
            .width('100%')
            .padding({ left: 10, right: 10, top: 5, bottom: 5 })
          }
        })
      }
      .width('100%')
      .layoutWeight(1)
    }
    .width('100%')
    .padding(10)
    .backgroundColor(Color.White)
    .borderRadius(10)
  }
  
  private async queryExpress() {
    this.isLoading = true;
    
    try {
      const result = await ExpressService.query(this.trackingNumber);
      this.queryResult = result;
    } catch (error) {
      console.error('查询失败:', error);
      // 显示错误提示
      promptAction.showToast({
        message: '查询失败，请检查单号是否正确',
        duration: 2000
      });
    } finally {
      this.isLoading = false;
    }
  }
}

export class ExpressService {
  private static readonly API_BASE = 'https://api.express.com';
  
  public static async query(trackingNumber: string): Promise<ExpressInfo> {
    // 识别快递公司
    const company = this.detectExpressCompany(trackingNumber);
    
    // 调用查询API
    const response = await http.request(`${this.API_BASE}/query`, {
      method: http.RequestMethod.POST,
      header: {
        'Content-Type': 'application/json'
      },
      extraData: {
        company: company,
        number: trackingNumber
      }
    });
    
    if (response.responseCode === 200) {
      const data = JSON.parse(response.result.toString());
      return this.parseExpressInfo(data);
    } else {
      throw new Error('查询服务异常');
    }
  }
  
  private static detectExpressCompany(trackingNumber: string): string {
    // 根据单号规则识别快递公司
    const patterns = {
      'SF': /^SF\d{12}$/,
      'YTO': /^YT\d{13}$/,
      'ZTO': /^ZTO\d{12}$/,
      'STO': /^STO\d{12}$/
    };
    
    for (const [company, pattern] of Object.entries(patterns)) {
      if (pattern.test(trackingNumber)) {
        return company;
      }
    }
    
    return 'UNKNOWN';
  }
}

// 预加载关键资源
@Entry
@Component
struct Index {
  aboutToAppear() {
    // 预加载常用数据
    this.preloadCriticalData();
    
    // 预连接网络服务
    this.preconnectServices();
  }
  
  private async preloadCriticalData() {
    // 并行加载多个资源
    const promises = [
      this.loadUserPreferences(),
      this.loadCachedData(),
      this.loadConfiguration()
    ];
    
    try {
      await Promise.all(promises);
    } catch (error) {
      console.log('预加载失败，使用默认配置');
    }
  }
}

// 图片资源管理
export class ImageManager {
  private static cache = new Map<string, PixelMap>();
  private static readonly MAX_CACHE_SIZE = 50;
  
  public static async loadImage(url: string): Promise<PixelMap> {
    // 检查缓存
    if (this.cache.has(url)) {
      return this.cache.get(url);
    }
    
    // 加载图片
    const pixelMap = await image.createImageSource(url).createPixelMap();
    
    // 缓存管理
    if (this.cache.size >= this.MAX_CACHE_SIZE) {
      const firstKey = this.cache.keys().next().value;
      this.cache.delete(firstKey);
    }
    
    this.cache.set(url, pixelMap);
    return pixelMap;
  }
}

import distributedData from '@ohos.data.distributedData';

export class DistributedDataManager {
  private kvStore: distributedData.KVStore;
  private readonly STORE_ID = 'user_preferences_store';
  
  constructor() {
    this.initKVStore();
  }
  
  private async initKVStore() {
    const kvManagerConfig = {
      context: getContext(this),
      bundleName: 'com.example.harmonyapp'
    };
    
    const kvManager = distributedData.createKVManager(kvManagerConfig);
    
    const options = {
      createIfMissing: true,
      encrypt: false,
      backup: false,
      autoSync: true,
      kvStoreType: distributedData.KVStoreType.DEVICE_COLLABORATION,
      schema: '',
      securityLevel: distributedData.SecurityLevel.S1
    };
    
    try {
      this.kvStore = await kvManager.getKVStore(this.STORE_ID, options);
      this.setupSyncListener();
    } catch (error) {
      console.error('分布式数据库初始化失败:', error);
    }
  }
  
  // 数据同步监听
  private setupSyncListener() {
    this.kvStore.on('dataChange', distributedData.SubscribeType.SUBSCRIBE_TYPE_ALL, (data) => {
      console.log('数据变化通知:', data);
      
      data.insertEntries.forEach((entry) => {
        console.log(`新增数据: ${entry.key} = ${entry.value.value}`);
        this.handleDataInsert(entry.key, entry.value.value);
      });
      
      data.updateEntries.forEach((entry) => {
        console.log(`更新数据: ${entry.key} = ${entry.value.value}`);
        this.handleDataUpdate(entry.key, entry.value.value);
      });
      
      data.deleteEntries.forEach((entry) => {
        console.log(`删除数据: ${entry.key}`);
        this.handleDataDelete(entry.key);
      });
    });
  }
  
  // 跨设备数据同步
  public async syncToDevices(deviceIds: string[]): Promise<void> {
    try {
      await this.kvStore.sync(deviceIds, distributedData.SyncMode.PUSH_PULL);
      console.log('数据同步成功');
    } catch (error) {
      console.error('数据同步失败:', error);
    }
  }
}

import nfcController from '@ohos.nfc.controller';
import nfcTag from '@ohos.nfc.tag';

export class NFCManager {
  private isNFCEnabled: boolean = false;
  private cardReadCallback: (cardData: CardInfo) => void;
  
  constructor() {
    this.initNFC();
  }
  
  private async initNFC() {
    try {
      // 检查NFC是否可用
      this.isNFCEnabled = nfcController.isNfcAvailable();
      
      if (!this.isNFCEnabled) {
        console.log('设备不支持NFC功能');
        return;
      }
      
      // 检查NFC是否开启
      const isOpen = nfcController.isNfcOpen();
      if (!isOpen) {
        console.log('NFC未开启，引导用户开启');
        this.promptEnableNFC();
        return;
      }
      
      // 注册NFC标签发现监听
      this.registerTagDiscovery();
      
    } catch (error) {
      console.error('NFC初始化失败:', error);
    }
  }
  
  private registerTagDiscovery() {
    // 监听NFC标签发现事件
    nfcController.on('nfcStateChange', (state) => {
      console.log('NFC状态变化:', state);
      this.isNFCEnabled = (state === nfcController.NfcState.STATE_ON);
    });
    
    // 注册前台调度
    const techList = [
      nfcTag.NfcATag.NFC_A,
      nfcTag.NfcBTag.NFC_B,
      nfcTag.IsoDep.ISO_DEP
    ];
    
    nfcController.enableForegroundDispatch(getContext(this), techList);
  }
  
  // 处理NFC标签发现
  public handleTagDiscovered(tagInfo: nfcTag.TagInfo) {
    console.log('发现NFC标签:', tagInfo);
    
    try {
      // 获取标签ID
      const tagId = this.bytesToHex(tagInfo.uid);
      
      // 读取NDEF数据
      if (tagInfo.supportedProfiles.includes(nfcTag.NdefTag.NDEF)) {
        this.readNdefData(tagInfo);
      }
      
      // 读取ISO-DEP卡片数据（如银行卡、门禁卡）
      if (tagInfo.supportedProfiles.includes(nfcTag.IsoDep.ISO_DEP)) {
        this.readIsoDepCard(tagInfo);
      }
      
    } catch (error) {
      console.error('NFC标签处理失败:', error);
    }
  }
  
  private async readIsoDepCard(tagInfo: nfcTag.TagInfo) {
    const isoDep = nfcTag.getIsoDep(tagInfo);
    
    try {
      // 连接到卡片
      await isoDep.connect();
      
      // 选择应用（门禁卡应用）
      const selectCommand = new Uint8Array([
        0x00, 0xA4, 0x04, 0x00, 0x07,
        0xA0, 0x00, 0x00, 0x00, 0x03, 0x10, 0x10
      ]);
      
      const response = await isoDep.transmit(selectCommand);
      
      if (response[response.length - 2] === 0x90 && 
          response[response.length - 1] === 0x00) {
        
        // 读取卡片信息
        const readCommand = new Uint8Array([0x00, 0xB0, 0x00, 0x00, 0x10]);
        const cardData = await isoDep.transmit(readCommand);
        
        // 解析卡片数据
        const cardInfo = this.parseCardData(cardData);
        
        // 回调处理
        if (this.cardReadCallback) {
          this.cardReadCallback(cardInfo);
        }
      }
      
    } catch (error) {
      console.error('读取ISO-DEP卡片失败:', error);
    } finally {
      await isoDep.close();
    }
  }
  
  private parseCardData(data: Uint8Array): CardInfo {
    // 解析门禁卡数据格式
    const cardNumber = this.bytesToHex(data.slice(0, 4));
    const accessLevel = data[4];
    const expiryDate = this.parseDate(data.slice(5, 9));
    
    return {
      cardNumber: cardNumber,
      accessLevel: accessLevel,
      expiryDate: expiryDate,
      isValid: this.validateCard(cardNumber, accessLevel, expiryDate)
    };
  }
  
  // 设置卡片读取回调
  public setCardReadCallback(callback: (cardData: CardInfo) => void) {
    this.cardReadCallback = callback;
  }
}

import ble from '@ohos.bluetooth.ble';
import access from '@ohos.bluetooth.access';

export class BLEDeviceManager {
  private centralManager: ble.BLECentralManager;
  private connectedDevices: Map<string, ble.GattClientDevice> = new Map();
  
  constructor() {
    this.initBLE();
  }
  
  private async initBLE() {
    try {
      // 检查蓝牙权限
      const hasPermission = await this.checkBluetoothPermission();
      if (!hasPermission) {
        console.log('缺少蓝牙权限');
        return;
      }
      
      // 初始化BLE中央管理器
      this.centralManager = ble.createBLECentralManager();
      this.setupScanCallback();
      
    } catch (error) {
      console.error('BLE初始化失败:', error);
    }
  }
  
  // 扫描BLE设备
  public startScan(serviceUUIDs?: string[]) {
    const scanOptions = {
      interval: 0,
      dutyMode: ble.ScanDuty.SCAN_MODE_LOW_POWER,
      matchMode: ble.MatchMode.MATCH_MODE_AGGRESSIVE
    };
    
    const scanFilter = serviceUUIDs ? {
      serviceUuid: serviceUUIDs[0]
    } : null;
    
    this.centralManager.startBLEScan([scanFilter], scanOptions);
    console.log('开始扫描BLE设备');
  }
  
  private setupScanCallback() {
    this.centralManager.on('BLEDeviceFind', (scanResult) => {
      console.log('发现BLE设备:', scanResult);
      
      const device = scanResult.deviceId;
      const rssi = scanResult.rssi;
      const advertisementData = scanResult.data;
      
      // 解析广播数据
      const deviceInfo = this.parseAdvertisementData(advertisementData);
      
      // 过滤目标设备（智能灯泡）
      if (deviceInfo.deviceType === 'SMART_BULB') {
        this.connectToDevice(device);
      }
    });
  }
  
  // 连接BLE设备
  private async connectToDevice(deviceId: string) {
    try {
      const gattClient = ble.createGattClientDevice(deviceId);
      
      // 设置连接状态监听
      gattClient.on('BLEConnectionStateChange', (state) => {
        console.log(`设备${deviceId}连接状态:`, state);
        
        if (state.state === ble.ProfileConnectionState.STATE_CONNECTED) {
          this.onDeviceConnected(deviceId, gattClient);
        } else if (state.state === ble.ProfileConnectionState.STATE_DISCONNECTED) {
          this.onDeviceDisconnected(deviceId);
        }
      });
      
      // 发起连接
      await gattClient.connect();
      
    } catch (error) {
      console.error(`连接设备${deviceId}失败:`, error);
    }
  }
  
  private async onDeviceConnected(deviceId: string, gattClient: ble.GattClientDevice) {
    console.log(`设备${deviceId}连接成功`);
    
    try {
      // 发现服务
      const services = await gattClient.getServices();
      console.log('发现的服务:', services);
      
      // 查找智能灯泡控制服务
      const lightService = services.find(service => 
        service.serviceUuid === 'FFF0' // 智能灯泡服务UUID
      );
      
      if (lightService) {
        this.connectedDevices.set(deviceId, gattClient);
        this.setupLightControl(deviceId, gattClient, lightService);
      }
      
    } catch (error) {
      console.error('服务发现失败:', error);
    }
  }
  
  // 智能灯泡控制
  private setupLightControl(deviceId: string, gattClient: ble.GattClientDevice, service: ble.GattService) {
    // 查找控制特征
    const controlCharacteristic = service.characteristics.find(char => 
      char.characteristicUuid === 'FFF1' // 灯泡控制特征UUID
    );
    
    if (controlCharacteristic) {
      // 启用通知
      if (controlCharacteristic.properties & ble.CharacteristicProperties.NOTIFY) {
        gattClient.setNotifyCharacteristicChanged(controlCharacteristic, true);
        
        gattClient.on('BLECharacteristicChange', (characteristic) => {
          console.log('特征值变化:', characteristic);
          this.handleLightStatusChange(deviceId, characteristic.characteristicValue);
        });
      }
    }
  }
  
  // 控制灯泡开关
  public async controlLight(deviceId: string, isOn: boolean, brightness?: number, color?: string) {
    const gattClient = this.connectedDevices.get(deviceId);
    if (!gattClient) {
      throw new Error('设备未连接');
    }
    
    // 构造控制命令
    const command = this.buildLightCommand(isOn, brightness, color);
    
    try {
      const characteristic = {
        serviceUuid: 'FFF0',
        characteristicUuid: 'FFF1',
        characteristicValue: command
      };
      
      await gattClient.writeCharacteristicValue(characteristic);
      console.log('灯泡控制命令发送成功');
      
    } catch (error) {
      console.error('灯泡控制失败:', error);
      throw error;
    }
  }
  
  private buildLightCommand(isOn: boolean, brightness?: number, color?: string): ArrayBuffer {
    const buffer = new ArrayBuffer(8);
    const view = new DataView(buffer);
    
    // 命令格式：[开关状态][亮度][颜色R][颜色G][颜色B][保留][保留][校验和]
    view.setUint8(0, isOn ? 0x01 : 0x00);
    view.setUint8(1, brightness || 100);
    
    if (color) {
      const rgb = this.hexToRgb(color);
      view.setUint8(2, rgb.r);
      view.setUint8(3, rgb.g);
      view.setUint8(4, rgb.b);
    }
    
    // 计算校验和
    let checksum = 0;
    for (let i = 0; i < 7; i++) {
      checksum ^= view.getUint8(i);
    }
    view.setUint8(7, checksum);
    
    return buffer;
  }
}

import apms from '@hms/cordova-plugin-hms-apms';

export class PerformanceMonitor {
  private static instance: PerformanceMonitor;
  private isInitialized: boolean = false;
  
  public static getInstance(): PerformanceMonitor {
    if (!PerformanceMonitor.instance) {
      PerformanceMonitor.instance = new PerformanceMonitor();
    }
    return PerformanceMonitor.instance;
  }
  
  public async initialize() {
    if (this.isInitialized) {
      return;
    }
    
    try {
      // 初始化APMS
      await apms.initialize();
      
      // 启用自动性能监控
      await apms.enableCollection(true);
      
      // 设置用户标识
      await apms.setUserId('user_' + Date.now());
      
      // 设置自定义属性
      await apms.setCustomAttribute('app_version', '1.0.0');
      await apms.setCustomAttribute('device_type', 'smartphone');
      
      this.isInitialized = true;
      console.log('APMS初始化成功');
      
    } catch (error) {
      console.error('APMS初始化失败:', error);
    }
  }
  
  // 创建自定义性能跟踪
  public async startTrace(traceName: string): Promise<string> {
    try {
      const traceId = await apms.startTrace(traceName);
      console.log(`开始性能跟踪: ${traceName}, ID: ${traceId}`);
      return traceId;
    } catch (error) {
      console.error('启动性能跟踪失败:', error);
      throw error;
    }
  }
  
  public async stopTrace(traceId: string) {
    try {
      await apms.stopTrace(traceId);
      console.log(`结束性能跟踪: ${traceId}`);
    } catch (error) {
      console.error('结束性能跟踪失败:', error);
    }
  }
  
  // 记录自定义指标
  public async recordMetric(traceName: string, metricName: string, value: number) {
    try {
      await apms.putMetric(traceName, metricName, value);
      console.log(`记录指标: ${traceName}.${metricName} = ${value}`);
    } catch (error) {
      console.error('记录指标失败:', error);
    }
  }
  
  // 记录网络请求性能
  public async trackNetworkRequest(url: string, method: string): Promise<NetworkTracker> {
    const tracker = new NetworkTracker(url, method);
    await tracker.start();
    return tracker;
  }
}

// 网络请求性能跟踪器
class NetworkTracker {
  private traceId: string;
  private startTime: number;
  
  constructor(private url: string, private method: string) {}
  
  public async start() {
    this.startTime = Date.now();
    this.traceId = await apms.startTrace(`network_${this.method}_${this.getUrlPath()}`);
    
    // 设置请求属性
    await apms.putAttribute(this.traceId, 'http_method', this.method);
    await apms.putAttribute(this.traceId, 'http_url', this.url);
  }
  
  public async finish(statusCode: number, responseSize?: number) {
    const duration = Date.now() - this.startTime;
    
    // 记录响应信息
    await apms.putAttribute(this.traceId, 'http_status_code', statusCode.toString());
    await apms.putMetric(this.traceId, 'response_time', duration);
    
    if (responseSize) {
      await apms.putMetric(this.traceId, 'response_size', responseSize);
    }
    
    // 结束跟踪
    await apms.stopTrace(this.traceId);
  }
  
  private getUrlPath(): string {
    try {
      const url = new URL(this.url);
      return url.pathname.replace(/\//g, '_').substring(1) || 'root';
    } catch {
      return 'unknown';
    }
  }
}

export class PagePerformanceTracker {
  private pageTraces: Map<string, string> = new Map();
  private performanceMonitor: PerformanceMonitor;
  
  constructor() {
    this.performanceMonitor = PerformanceMonitor.getInstance();
  }
  
  // 页面加载开始
  public async onPageLoadStart(pageName: string) {
    try {
      const traceId = await this.performanceMonitor.startTrace(`page_load_${pageName}`);
      this.pageTraces.set(pageName, traceId);
      
      // 记录页面加载开始时间
      await this.performanceMonitor.recordMetric(
        `page_load_${pageName}`, 
        'load_start_time', 
        Date.now()
      );
      
    } catch (error) {
      console.error('页面性能跟踪启动失败:', error);
    }
  }
  
  // 页面加载完成
  public async onPageLoadComplete(pageName: string, loadTime: number) {
    const traceId = this.pageTraces.get(pageName);
    if (!traceId) {
      return;
    }
    
    try {
      // 记录加载时间
      await this.performanceMonitor.recordMetric(
        `page_load_${pageName}`, 
        'load_duration', 
        loadTime
      );
      
      // 记录内存使用情况
      const memoryInfo = await this.getMemoryInfo();
      await this.performanceMonitor.recordMetric(
        `page_load_${pageName}`, 
        'memory_usage', 
        memoryInfo.used
      );
      
      // 结束跟踪
      await this.performanceMonitor.stopTrace(traceId);
      this.pageTraces.delete(pageName);
      
    } catch (error) {
      console.error('页面性能跟踪结束失败:', error);
    }
  }
  
  // 用户交互性能监控
  public async trackUserInteraction(actionName: string, callback: () => Promise<void>) {
    const traceId = await this.performanceMonitor.startTrace(`user_action_${actionName}`);
    const startTime = Date.now();
    
    try {
      // 执行用户操作
      await callback();
      
      const duration = Date.now() - startTime;
      
      // 记录操作耗时
      await this.performanceMonitor.recordMetric(
        `user_action_${actionName}`, 
        'action_duration', 
        duration
      );
      
      // 如果操作耗时过长，标记为慢操作
      if (duration > 1000) {
        await this.performanceMonitor.recordMetric(
          `user_action_${actionName}`, 
          'slow_action', 
          1
        );
      }
      
    } catch (error) {
      // 记录错误
      await this.performanceMonitor.recordMetric(
        `user_action_${actionName}`, 
        'action_error', 
        1
      );
      throw error;
    } finally {
      await this.performanceMonitor.stopTrace(traceId);
    }
  }
  
  private async getMemoryInfo(): Promise<{used: number, total: number}> {
    // 获取应用内存使用情况
    try {
      const memoryInfo = await process.getMemoryInfo();
      return {
        used: memoryInfo.rss / 1024 / 1024, // MB
        total: memoryInfo.heapTotal / 1024 / 1024 // MB
      };
    } catch {
      return { used: 0, total: 0 };
    }
  }
}

export class PerformanceAnalyzer {
  private performanceData: PerformanceMetric[] = [];
  
  // 分析页面加载性能
  public analyzePageLoadPerformance(pageName: string): PageLoadAnalysis {
    const pageMetrics = this.performanceData.filter(
      metric => metric.name.startsWith(`page_load_${pageName}`)
    );
    
    const loadTimes = pageMetrics
      .filter(m => m.metricName === 'load_duration')
      .map(m => m.value);
    
    const memoryUsage = pageMetrics
      .filter(m => m.metricName === 'memory_usage')
      .map(m => m.value);
    
    return {
      averageLoadTime: this.calculateAverage(loadTimes),
      p95LoadTime: this.calculatePercentile(loadTimes, 95),
      averageMemoryUsage: this.calculateAverage(memoryUsage),
      maxMemoryUsage: Math.max(...memoryUsage),
      loadTimeDistribution: this.calculateDistribution(loadTimes),
      recommendations: this.generateOptimizationRecommendations(loadTimes, memoryUsage)
    };
  }
  
  private generateOptimizationRecommendations(
    loadTimes: number[], 
    memoryUsage: number[]
  ): string[] {
    const recommendations: string[] = [];
    
    const avgLoadTime = this.calculateAverage(loadTimes);
    const avgMemoryUsage = this.calculateAverage(memoryUsage);
    
    if (avgLoadTime > 3000) {
      recommendations.push('页面加载时间过长，建议优化资源加载策略');
      recommendations.push('考虑实现懒加载和预加载机制');
    }
    
    if (avgMemoryUsage > 100) {
      recommendations.push('内存使用量较高，建议优化数据结构和缓存策略');
      recommendations.push('检查是否存在内存泄漏问题');
    }
    
    return recommendations;
  }
}

import analytics from '@hms/cordova-plugin-hms-analytics';

export class UserBehaviorTracker {
  private static instance: UserBehaviorTracker;
  
  public static getInstance(): UserBehaviorTracker {
    if (!UserBehaviorTracker.instance) {
      UserBehaviorTracker.instance = new UserBehaviorTracker();
    }
    return UserBehaviorTracker.instance;
  }
  
  public async initialize() {
    try {
      await analytics.initialize();
      
      // 设置用户属性
      await analytics.setUserProfile('user_type', 'premium');
      await analytics.setUserProfile('registration_date', new Date().toISOString());
      
      console.log('用户行为分析初始化成功');
    } catch (error) {
      console.error('用户行为分析初始化失败:', error);
    }
  }
  
  // 跟踪页面访问
  public async trackPageView(pageName: string, pageClass?: string) {
    try {
      await analytics.onEvent('page_view', {
        page_name: pageName,
        page_class: pageClass || 'unknown',
        timestamp: Date.now()
      });
    } catch (error) {
      console.error('页面访问跟踪失败:', error);
    }
  }
  
  // 跟踪用户操作
  public async trackUserAction(actionName: string, parameters?: Record<string, any>) {
    try {
      const eventParams = {
        action_name: actionName,
        timestamp: Date.now(),
        ...parameters
      };
      
      await analytics.onEvent('user_action', eventParams);
    } catch (error) {
      console.error('用户操作跟踪失败:', error);
    }
  }
  
  // 跟踪功能使用情况
  public async trackFeatureUsage(featureName: string, usageType: 'start' | 'complete' | 'error') {
    try {
      await analytics.onEvent('feature_usage', {
        feature_name: featureName,
        usage_type: usageType,
        timestamp: Date.now()
      });
    } catch (error) {
      console.error('功能使用跟踪失败:', error);
    }
  }
}

export class EnterpriseDeviceManager {
  private deviceRegistry: Map<string, EnterpriseDevice> = new Map();
  private connectionPool: ConnectionPool;
  
  constructor() {
    this.connectionPool = new ConnectionPool({
      maxConnections: 50,
      connectionTimeout: 10000,
      retryAttempts: 3
    });
  }
  
  // 企业设备发现策略
  public async discoverEnterpriseDevices(): Promise<EnterpriseDevice[]> {
    const discoveryStrategies = [
      this.discoverByNetworkSegment(),
      this.discoverByDeviceType(),
      this.discoverByUserGroup()
    ];
    
    // 并行执行多种发现策略
    const results = await Promise.allSettled(discoveryStrategies);
    
    const devices: EnterpriseDevice[] = [];
    results.forEach(result => {
      if (result.status === 'fulfilled') {
        devices.push(...result.value);
      }
    });
    
    // 去重和过滤
    return this.deduplicateAndFilter(devices);
  }
  
  private async discoverByNetworkSegment(): Promise<EnterpriseDevice[]> {
    // 基于网络段的设备发现
    const networkSegments = await this.getEnterpriseNetworkSegments();
    const devices: EnterpriseDevice[] = [];
    
    for (const segment of networkSegments) {
      try {
        const segmentDevices = await this.scanNetworkSegment(segment);
        devices.push(...segmentDevices);
      } catch (error) {
        console.log(`网络段${segment}扫描失败:`, error);
      }
    }
    
    return devices;
  }
  
  // 智能连接管理
  public async establishSmartConnection(deviceId: string): Promise<Connection> {
    const device = this.deviceRegistry.get(deviceId);
    if (!device) {
      throw new Error('设备未找到');
    }
    
    // 选择最优连接方式
    const connectionMethod = await this.selectOptimalConnection(device);
    
    try {
      const connection = await this.connectionPool.getConnection(deviceId, connectionMethod);
      
      // 设置连接质量监控
      this.setupConnectionMonitoring(connection);
      
      return connection;
    } catch (error) {
      console.error('建立连接失败:', error);
      throw error;
    }
  }
  
  private async selectOptimalConnection(device: EnterpriseDevice): Promise<ConnectionMethod> {
    const availableMethods = device.supportedConnections;
    const networkConditions = await this.assessNetworkConditions();
    
    // 连接方式优先级评分
    const methodScores = availableMethods.map(method => ({
      method,
      score: this.calculateConnectionScore(method, networkConditions, device)
    }));
    
    // 选择得分最高的连接方式
    methodScores.sort((a, b) => b.score - a.score);
    return methodScores[0].method;
  }
}

export class EnterpriseSecurityManager {
  private certificateManager: CertificateManager;
  private encryptionService: EncryptionService;
  
  constructor() {
    this.certificateManager = new CertificateManager();
    this.encryptionService = new EncryptionService();
  }
  
  // 设备安全认证
  public async authenticateDevice(deviceId: string, userCredentials: UserCredentials): Promise<AuthResult> {
    try {
      // 第一步：设备证书验证
      const deviceCert = await this.certificateManager.getDeviceCertificate(deviceId);
      const certValid = await this.certificateManager.validateCertificate(deviceCert);
      
      if (!certValid) {
        throw new Error('设备证书无效');
      }
      
      // 第二步：用户身份验证
      const userAuth = await this.authenticateUser(userCredentials);
      if (!userAuth.success) {
        throw new Error('用户认证失败');
      }
      
      // 第三步：权限检查
      const permissions = await this.checkUserPermissions(userAuth.userId, deviceId);
      
      // 第四步：生成访问令牌
      const accessToken = await this.generateAccessToken(userAuth.userId, deviceId, permissions);
      
      return {
        success: true,
        accessToken: accessToken,
        permissions: permissions,
        expiresAt: Date.now() + 8 * 60 * 60 * 1000 // 8小时有效期
      };
      
    } catch (error) {
      console.error('设备认证失败:', error);
      return {
        success: false,
        error: error.message
      };
    }
  }
  
  // 数据传输加密
  public async encryptData(data: any, recipientDeviceId: string): Promise<EncryptedData> {
    // 获取接收设备的公钥
    const publicKey = await this.certificateManager.getDevicePublicKey(recipientDeviceId);
    
    // 生成对称密钥
    const symmetricKey = await this.encryptionService.generateSymmetricKey();
    
    // 使用对称密钥加密数据
    const encryptedData = await this.encryptionService.encryptWithSymmetricKey(data, symmetricKey);
    
    // 使用公钥加密对称密钥
    const encryptedKey = await this.encryptionService.encryptWithPublicKey(symmetricKey, publicKey);
    
    return {
      encryptedData: encryptedData,
      encryptedKey: encryptedKey,
      algorithm: 'AES-256-GCM',
      keyAlgorithm: 'RSA-OAEP'
    };
  }
}

export class SmartMeetingRoomController {
  private deviceManager: EnterpriseDeviceManager;
  private meetingService: MeetingService;
  
  constructor() {
    this.deviceManager = new EnterpriseDeviceManager();
    this.meetingService = new MeetingService();
  }
  
  // 会议开始时的设备协同
  public async startMeeting(meetingId: string, participants: Participant[]): Promise<void> {
    try {
      // 发现会议室设备
      const roomDevices = await this.discoverMeetingRoomDevices();
      
      // 设备能力分配
      const deviceAllocation = await this.allocateDeviceCapabilities(roomDevices, participants);
      
      // 并行初始化各设备
      const initPromises = deviceAllocation.map(allocation => 
        this.initializeDeviceForMeeting(allocation.device, allocation.role, meetingId)
      );
      
      await Promise.all(initPromises);
      
      // 建立设备间数据同步
      await this.setupDeviceDataSync(deviceAllocation);
      
      console.log('会议设备协同初始化完成');
      
    } catch (error) {
      console.error('会议启动失败:', error);
      throw error;
    }
  }
  
  private async initializeDeviceForMeeting(
    device: EnterpriseDevice, 
    role: DeviceRole, 
    meetingId: string
  ): Promise<void> {
    
    switch (role) {
      case DeviceRole.MAIN_DISPLAY:
        await this.initMainDisplay(device, meetingId);
        break;
        
      case DeviceRole.PRESENTATION_SCREEN:
        await this.initPresentationScreen(device, meetingId);
        break;
        
      case DeviceRole.AUDIO_SYSTEM:
        await this.initAudioSystem(device, meetingId);
        break;
        
      case DeviceRole.CAMERA_SYSTEM:
        await this.initCameraSystem(device, meetingId);
        break;
        
      case DeviceRole.PARTICIPANT_DEVICE:
        await this.initParticipantDevice(device, meetingId);
        break;
    }
  }
  
  // 实时屏幕共享
  public async shareScreen(sourceDeviceId: string, targetDeviceIds: string[]): Promise<void> {
    try {
      // 获取源设备屏幕流
      const screenStream = await this.captureScreenStream(sourceDeviceId);
      
      // 建立分布式媒体传输
      const mediaTransport = new DistributedMediaTransport();
      
      // 向目标设备推送屏幕流
      const streamPromises = targetDeviceIds.map(deviceId => 
        mediaTransport.pushStream(screenStream, deviceId)
      );
      
      await Promise.all(streamPromises);
      
      console.log('屏幕共享建立成功');
      
    } catch (error) {
      console.error('屏幕共享失败:', error);
      throw error;
    }
  }
}

export class CollaborativeDocumentEditor {
  private documentSync: DistributedDocumentSync;
  private operationTransform: OperationTransform;
  
  constructor(documentId: string) {
    this.documentSync = new DistributedDocumentSync(documentId);
    this.operationTransform = new OperationTransform();
  }
  
  // 处理文档编辑操作
  public async handleEditOperation(operation: EditOperation): Promise<void> {
    try {
      // 本地应用操作
      const localResult = await this.applyOperationLocally(operation);
      
      // 转换操作以解决冲突
      const transformedOperation = await this.operationTransform.transform(
        operation, 
        this.documentSync.getPendingOperations()
      );
      
      // 广播到其他设备
      await this.documentSync.broadcastOperation(transformedOperation);
      
      // 更新本地状态
      this.updateLocalDocumentState(localResult);
      
    } catch (error) {
      console.error('文档编辑操作失败:', error);
      // 回滚本地操作
      await this.rollbackLocalOperation(operation);
    }
  }
  
  // 处理远程操作
  public async handleRemoteOperation(operation: EditOperation, sourceDeviceId: string): Promise<void> {
    try {
      // 检查操作权限
      const hasPermission = await this.checkOperationPermission(operation, sourceDeviceId);
      if (!hasPermission) {
        console.warn('操作权限不足，忽略远程操作');
        return;
      }
      
      // 应用操作转换
      const transformedOperation = await this.operationTransform.transformRemoteOperation(
        operation, 
        this.getLocalOperations()
      );
      
      // 应用到本地文档
      await this.applyOperationLocally(transformedOperation);
      
      // 更新UI
      this.updateDocumentUI(transformedOperation);
      
    } catch (error) {
      console.error('处理远程操作失败:', error);
    }
  }
}

export class UserFeedbackAnalyzer {
  private feedbackData: UserFeedback[] = [];
  
  public analyzeFeedbackTrends(): FeedbackAnalysis {
    // 按功能模块分类反馈
    const modulesFeedback = this.groupFeedbackByModule();
    
    // 识别主要问题
    const topIssues = this.identifyTopIssues();
    
    // 用户满意度趋势
    const satisfactionTrend = this.calculateSatisfactionTrend();
    
    return {
      modulesFeedback,
      topIssues,
      satisfactionTrend,
      recommendations: this.generateImprovementRecommendations()
    };
  }
  
  private generateImprovementRecommendations(): Recommendation[] {
    const recommendations: Recommendation[] = [];
    
    // 基于反馈数据生成改进建议
    const connectionIssues = this.feedbackData.filter(f => 
      f.category === 'connection' && f.rating < 3
    );
    
    if (connectionIssues.length > 10) {
      recommendations.push({
        priority: 'high',
        module: 'device_connection',
        description: '优化设备连接稳定性',
        expectedImpact: '提升用户体验满意度15-20%'
      });
    }
    
    return recommendations;
  }
}

interface BusinessMetrics {
  developmentCost: number;      // 开发成本
  maintenanceCost: number;      // 维护成本
  efficiencyGains: number;      // 效率收益
  costSavings: number;          // 成本节约
  roi: number;                  // 投资回报率
}

const projectMetrics: BusinessMetrics = {
  developmentCost: 2800000,     // 280万开发成本
  maintenanceCost: 420000,      // 年维护成本42万
  efficiencyGains: 5600000,     // 年效率收益560万
  costSavings: 1680000,         // 年成本节约168万
  roi: 2.31                     // 投资回报率231%
};

// 统一的跨平台开发框架设计思路
interface CrossPlatformFramework {
  // 统一的UI组件系统
  createComponent(type: ComponentType, props: ComponentProps): Component;
  
  // 统一的状态管理
  createStore(initialState: any): Store;
  
  // 统一的网络请求
  createHttpClient(config: HttpConfig): HttpClient;
  
  // 统一的设备能力调用
  getDeviceCapability(capability: DeviceCapability): Promise<any>;
}