import { formBindingData, FormExtensionAbility, formProvider } from '@kit.FormKit';
import { Want } from '@kit.AbilityKit';
import { hilog } from '@kit.PerformanceAnalysisKit';
import { fileIo } from '@kit.CoreFileKit';
import { http } from '@kit.NetworkKit';

import { WidgetDataManager } from '../common/widget/WidgetDataManager';
import { PlayerControlService } from '../common/widget/PlayerControlService';
import { AvSessionWidgetListener } from '../common/widget/AvSessionWidgetListener';
import { WidgetData, WidgetSize, FormattedWidgetData } from '../common/widget/WidgetTypes';
import { FormLayoutManager } from '../common/widget/FormLayoutManager';
import { GlobalWidgetManager } from '../common/widget/GlobalWidgetManager';
import { WidgetSizeAdapter, SizeChangeListener } from '../common/widget/WidgetSizeAdapter';
import { PreferencesUtil } from '../common/utils/PreferencesUtil';

const TAG = 'Heanup EntryFormAbility';


/**
 * 扩展的卡片数据接口，支持图片传递
 */
interface ExtendedWidgetData extends FormattedWidgetData {
  formImages?: Record<string, number>;
}

/**
 * 自定义对象复制函数，替代Object.assign
 */
function copyWidgetData(target: ExtendedWidgetData, overrides: Partial<ExtendedWidgetData>): ExtendedWidgetData {
  return {
    isPlaying: overrides.isPlaying !== undefined ? overrides.isPlaying : target.isPlaying,
    isPaused: overrides.isPaused !== undefined ? overrides.isPaused : target.isPaused,
    isLoading: overrides.isLoading !== undefined ? overrides.isLoading : target.isLoading,
    songTitle: overrides.songTitle !== undefined ? overrides.songTitle : target.songTitle,
    songArtist: overrides.songArtist !== undefined ? overrides.songArtist : target.songArtist,
    songAlbum: overrides.songAlbum !== undefined ? overrides.songAlbum : target.songAlbum,
    coverImage: overrides.coverImage !== undefined ? overrides.coverImage : target.coverImage,
    currentTime: overrides.currentTime !== undefined ? overrides.currentTime : target.currentTime,
    totalTime: overrides.totalTime !== undefined ? overrides.totalTime : target.totalTime,
    progressPercentage: overrides.progressPercentage !== undefined ? overrides.progressPercentage :
    target.progressPercentage,
    hasNext: overrides.hasNext !== undefined ? overrides.hasNext : target.hasNext,
    hasPrevious: overrides.hasPrevious !== undefined ? overrides.hasPrevious : target.hasPrevious,
    showProgress: overrides.showProgress !== undefined ? overrides.showProgress : target.showProgress,
    showCover: overrides.showCover !== undefined ? overrides.showCover : target.showCover,
    widgetSize: overrides.widgetSize !== undefined ? overrides.widgetSize : target.widgetSize,
    timestamp: overrides.timestamp !== undefined ? overrides.timestamp : target.timestamp,
    imgName: overrides.imgName !== undefined ? overrides.imgName : target.imgName,
    formImages: overrides.formImages !== undefined ? overrides.formImages : target.formImages
  };
}

/**
 * 桌面播放器卡片扩展能力
 * 负责处理卡片的生命周期管理和用户交互事件
 * 支持多尺寸适配和UI重构
 */
export default class EntryFormAbility extends FormExtensionAbility
implements SizeChangeListener {
  private widgetDataManager: WidgetDataManager | null = null;
  private playerControlService: PlayerControlService = new PlayerControlService();
  private layoutManager: FormLayoutManager = FormLayoutManager.getInstance();
  private sizeAdapter: WidgetSizeAdapter = WidgetSizeAdapter.getInstance();
  private globalWidgetManager: GlobalWidgetManager = GlobalWidgetManager.getInstance();
  // 使用实例变量而不是静态变量，确保每个进程都能正确设置监听器
  private globalListenerSetup: boolean = false;
  // 防抖机制：避免短时间内重复更新
  private lastUpdateTime: number = 0;
  private updateDebounceDelay: number = 100;
  // 100ms防抖延迟

  // 进程启动时间，用于检测进程重启
  private processStartTime: number = Date.now();
  // 图片下载缓存
  private downloadingImages: Map<string, Promise<string | null>> = new Map();
  private imageCache: Map<string, string> = new Map();

  // url -> fileName映射

  /**
   * 卡片创建时调用
   */
  onAddForm(want: Want): formBindingData.FormBindingData {


    // 检查参数有效性
    if (!want || !want.parameters) {
      hilog.error(0x0000, TAG, 'FormAbility onAddForm want or want.parameters is undefined');
      return formBindingData.createFormBindingData('');
    }

    // 初始化服务
    try {

      this.initializeServices();

    } catch (error) {
      hilog.error(0x0000, TAG, `Heanup EntryFormAbility failed to initialize services: ${error}`);
    }

    const formId = want.parameters?.['ohos.extra.param.key.form_identity'] as string;
    const formName = want.parameters?.['ohos.extra.param.key.form_name'] as string;
    const formDimension = want.parameters?.['ohos.extra.param.key.form_dimension'] as string;
    const tempFlag = want.parameters?.['ohos.extra.param.key.form_temporary'] as boolean;


    // 持久化保存 Form ID（异步执行，不阻塞返回）
    this.saveFormIdToPersistence(formId).then(() => {

    })

    // 检测卡片尺寸并注册到全局管理器
    const widgetSize = this.sizeAdapter.detectSizeFromWant(want);
    try {
      this.globalWidgetManager.registerWidget(formId, widgetSize);

    } catch (error) {
      hilog.error(0x0000, TAG, `Failed to register widget: ${error}`);
    }


    // 注册各种监听器
    this.sizeAdapter.registerSizeChangeListener(formId, this);

    // 初始化卡片数据
    this.initializeWidget(formId, widgetSize);

    // 验证监听器设置状态
    setTimeout(() => {
      const avSessionListener = AvSessionWidgetListener.getInstance();
      const listenerCount = avSessionListener.getListenerCount();


      if (listenerCount === 0) {
        hilog.warn(0x0000, TAG, `⚠️ No listeners found! Form process may not receive data updates!`);
      } else {

      }
    }, 2000);

    // 获取当前播放状态而不是初始数据
    this.playerControlService.getCurrentPlayState().then((currentState: WidgetData) => {
      const adaptedData = this.layoutManager.adaptDataForSize(currentState, widgetSize);
      const formData = formBindingData.createFormBindingData(adaptedData);
      // 立即更新卡片以显示当前状态
      formProvider.updateForm(formId, formData);

    });

    // 返回初始数据作为临时显示
    const initialData = this.widgetDataManager?.getInitialWidgetData() || this.getDefaultWidgetData();
    const adaptedData = this.layoutManager.adaptDataForSize(initialData, widgetSize);

    return formBindingData.createFormBindingData(adaptedData);
  }

  /**
   * 卡片更新时调用
   */
  onUpdateForm(formId: string): void {


    // 确保服务已初始化
    if (!this.globalListenerSetup) {

      this.initializeServices();
    }

    // 确保widget已注册到GlobalWidgetManager
    if (!this.globalWidgetManager.hasWidget(formId)) {

      this.globalWidgetManager.registerWidget(formId, 'medium' as WidgetSize);
    }

    // 只更新指定的卡片，避免重复更新
    this.updateWidgetData(formId);
  }

  /**
   * 卡片删除时调用
   */
  onRemoveForm(formId: string): void {


    // 从持久化存储中移除 Form ID（异步执行）
    this.removeFormIdFromPersistence(formId).then(() => {

    });


    // 注销各种监听器
    this.sizeAdapter.unregisterSizeChangeListener(formId);

    // 从全局管理器中注销卡片
    this.globalWidgetManager.unregisterWidget(formId);

    // 清理卡片相关数据和配置
    this.widgetDataManager?.removeWidgetData(formId);
  }

  /**
   * 卡片可见性变化时调用
   */
  onVisibilityChange(newStatus: Record<string, number>): void {


    const formIds = Object.keys(newStatus);
    for (let i = 0; i < formIds.length; i++) {
      const formId = formIds[i];
      const isVisible = newStatus[formId] === 1;


      if (isVisible) {
        // 卡片变为可见时，更新数据
        this.updateWidgetData(formId);
      }
    }
  }


  /**
   * 卡片配置更新时调用
   */
  onConfigurationUpdate(newConfig: Object): void {


    // 更新所有卡片以适应新配置
    this.widgetDataManager?.updateAllWidgets();
  }

  /**
   * 实现SizeChangeListener接口
   * 处理卡片尺寸变化事件
   */
  onSizeChanged(formId: string, oldSize: WidgetSize, newSize: WidgetSize): void {


    // 更新全局管理器中的尺寸记录
    this.globalWidgetManager.updateWidgetSize(formId, newSize);

    // 立即更新卡片数据以适应新尺寸
    this.updateWidgetData(formId);
  }

  /**
   * 处理卡片尺寸变化（系统调用）
   * @param newStatus 新的尺寸状态
   */
  onAcquireFormState(want: Want): number {


    const formId = want.parameters?.['ohos.extra.param.key.form_identity'] as string;

    if (formId) {
      // 检测新的尺寸
      const newSize = this.sizeAdapter.detectSizeFromWant(want);
      const oldSize = this.globalWidgetManager.getWidgetSize(formId);

      if (oldSize && this.sizeAdapter.validateSizeChange(oldSize, newSize)) {
        // 处理尺寸变化
        this.handleFormSizeChange(formId, oldSize, newSize);
      }
    }

    // 返回卡片状态 - 使用数字常量代替枚举
    return 1; // READY状态
  }

  /**
   * 初始化服务
   */
  private initializeServices(): void {

    if (!this.widgetDataManager) {
      this.widgetDataManager = new WidgetDataManager();
    }

    // 设置全局状态监听器（每个进程实例设置一次）
    if (!this.globalListenerSetup) {
      this.setupGlobalStateListener();
      this.globalListenerSetup = true;
    }
  }

  /**
   * 设置全局状态监听器
   */
  private setupGlobalStateListener(): void {
    try {
      const avSessionListener = AvSessionWidgetListener.getInstance();
      avSessionListener.addStateListener((data: WidgetData) => {
        this.updateAllWidgetsWithData(data);
      });
    } catch (error) {
      hilog.error(0x0000, TAG,
        `Heanup EntryFormAbility [Process:${this.processStartTime}] failed to setup global listener: ${error}`);
    }
  }

  /**
   * 使用指定数据更新所有卡片
   */
  private updateAllWidgetsWithData(data: WidgetData): void {
    // 防抖机制：避免短时间内重复更新
    const now = Date.now();
    if (now - this.lastUpdateTime < this.updateDebounceDelay) {
      return;
    }
    this.lastUpdateTime = now;

    const activeWidgets = this.globalWidgetManager.getActiveWidgets();


    if (activeWidgets.size === 0) {
      hilog.warn(0x0000, TAG, 'Heanup EntryFormAbility no widgets to update in this process, skipping');
      return;
    }

    activeWidgets.forEach((size: WidgetSize, formId: string) => {
      this.updateSingleWidget(formId, size, data);
    });


  }

  /**
   * 更新单个卡片，带重试机制和网络图片支持
   */
  private updateSingleWidget(formId: string, size: WidgetSize, data: WidgetData, retryCount: number = 0): void {
    try {
      // 根据卡片尺寸适配数据
      const formattedData = this.layoutManager.adaptDataForSize(data, size);

      // 转换为ExtendedWidgetData
      const adaptedData: ExtendedWidgetData = {
        isPlaying: formattedData.isPlaying,
        isPaused: formattedData.isPaused,
        isLoading: formattedData.isLoading,
        songTitle: formattedData.songTitle,
        songArtist: formattedData.songArtist,
        songAlbum: formattedData.songAlbum,
        coverImage: formattedData.coverImage,
        currentTime: formattedData.currentTime,
        totalTime: formattedData.totalTime,
        progressPercentage: formattedData.progressPercentage,
        hasNext: formattedData.hasNext,
        hasPrevious: formattedData.hasPrevious,
        showProgress: formattedData.showProgress,
        showCover: formattedData.showCover,
        widgetSize: formattedData.widgetSize,
        timestamp: formattedData.timestamp,
        imgName: formattedData.imgName,
        formImages: formattedData.formImages
      };


      // 使用统一的图片处理方法
      this.updateWidgetWithImage(formId, adaptedData, retryCount);
    } catch (error) {
      hilog.error(0x0000, TAG, `Heanup widget ${formId} process error: ${error}`);

      // 如果是处理错误，也尝试重试
      if (retryCount < 2) {
        setTimeout(() => {
          this.updateSingleWidget(formId, size, data, retryCount + 1);
        }, 1000 * (retryCount + 1));
      }
    }
  }

  /**
   * 直接更新卡片（无网络图片）
   */
  private updateWidgetDirectly(formId: string, adaptedData: ExtendedWidgetData, retryCount: number = 0): void {
    const formData = formBindingData.createFormBindingData(adaptedData);
    formProvider.updateForm(formId, formData).then(() => {

    }).catch(() => {
      hilog.error(0x0000, TAG, `Heanup widget ${formId} update failed, retry count: ${retryCount}`);

      // 重试机制：最多重试2次
      if (retryCount < 2) {
        setTimeout(() => {
          this.updateWidgetDirectly(formId, adaptedData, retryCount + 1);
        }, 1000 * (retryCount + 1)); // 递增延迟
      }
    });
  }

  /**
   * 统一处理图片更新
   */
  private async updateWidgetWithImage(formId: string, adaptedData: ExtendedWidgetData,
    retryCount: number = 0): Promise<void> {
    try {
      if (!adaptedData.coverImage || adaptedData.coverImage.trim() === '') {
        // 没有封面图片，直接更新
        this.updateWidgetDirectly(formId, adaptedData, retryCount);
        return;
      }


      if (this.isNetworkUrl(adaptedData.coverImage)) {
        // 处理网络图片
        await this.updateWidgetWithNetworkImage(formId, adaptedData, retryCount);
      } else if (this.isLocalFileUri(adaptedData.coverImage)) {
        // 处理本地文件URI
        await this.updateWidgetWithLocalImage(formId, adaptedData, retryCount);
      } else {
        // 其他情况，可能是相对路径或其他格式，直接使用

        this.updateWidgetDirectly(formId, adaptedData, retryCount);
      }
    } catch (error) {
      hilog.error(0x0000, TAG, `Heanup widget ${formId} image update error: ${error}`);
      // 失败时使用默认数据
      const dataWithoutImage: ExtendedWidgetData = copyWidgetData(adaptedData, { coverImage: '' });
      this.updateWidgetDirectly(formId, dataWithoutImage, retryCount);
    }
  }

  /**
   * 处理本地文件URI图片
   */
  private async updateWidgetWithLocalImage(formId: string, adaptedData: ExtendedWidgetData,
    retryCount: number = 0): Promise<void> {
    try {
      const localFileUri: string = adaptedData.coverImage;


      // 先用无图片的数据快速更新一次，确保界面响应性
      const dataWithoutImage: ExtendedWidgetData = copyWidgetData(adaptedData, {
        coverImage: '',
        imgName: '',
        formImages: undefined
      });
      this.updateWidgetDirectly(formId, dataWithoutImage, 0);

      // 处理本地图片文件
      const fileName = await this.processLocalImageFile(localFileUri);

      if (fileName) {
        try {
          // 按照官方文档要求，准备 formImages 和文件描述符
          const imageMap: Record<string, number> = {};
          const fileDescriptor = await this.getImageFileDescriptor(fileName);
          imageMap[fileName] = fileDescriptor;

          // 按照官方文档要求，imgName 必须与 formImages 中的 key 相同
          const dataWithImage: ExtendedWidgetData = copyWidgetData(adaptedData, {
            coverImage: '', // 清空原路径
            imgName: fileName, // 设置图片名称用于 memory:// 协议
            formImages: imageMap  // 必填字段，不可缺省
          });

          const formDataWithImage = formBindingData.createFormBindingData(dataWithImage);
          await formProvider.updateForm(formId, formDataWithImage);


        } catch (fdError) {
          hilog.error(0x0000, TAG, `Heanup widget ${formId} failed to get file descriptor: ${fdError}`);
          // 文件描述符获取失败，使用默认图片
          this.updateWidgetDirectly(formId, dataWithoutImage, 0);
        }
      } else {
        hilog.warn(0x0000, TAG, `Heanup widget ${formId} failed to process local image, using default`);
        // 图片处理失败，使用默认图片
        this.updateWidgetDirectly(formId, dataWithoutImage, 0);
      }
    } catch (error) {
      hilog.error(0x0000, TAG, `Heanup widget ${formId} local image update error: ${error}`);

      // 失败后回退到无图片模式
      const dataWithoutImage: ExtendedWidgetData = copyWidgetData(adaptedData, {
        coverImage: '',
        imgName: '',
        formImages: undefined
      });
      this.updateWidgetDirectly(formId, dataWithoutImage, retryCount);
    }
  }

  /**
   * 使用网络图片更新卡片
   */
  private async updateWidgetWithNetworkImage(formId: string, adaptedData: ExtendedWidgetData,
    retryCount: number = 0): Promise<void> {
    try {
      const imageUrl: string = adaptedData.coverImage;


      // 先用无图片的数据快速更新一次
      const dataWithoutImage: ExtendedWidgetData = copyWidgetData(adaptedData, { coverImage: '' });
      this.updateWidgetDirectly(formId, dataWithoutImage, 0);

      // 下载图片
      const fileName = await this.downloadNetworkImage(imageUrl);

      if (fileName) {
        // 准备包含图片的数据
        const imageMap: Record<string, number> = {};
        imageMap[fileName] = await this.getImageFileDescriptor(fileName);

        const dataWithImage: ExtendedWidgetData = copyWidgetData(adaptedData, {
          coverImage: '', // 清空URL
          imgName: fileName, // 设置图片名称用于memory://协议
          formImages: imageMap
        });

        const formDataWithImage = formBindingData.createFormBindingData(dataWithImage);
        await formProvider.updateForm(formId, formDataWithImage);


      } else {
        hilog.warn(0x0000, TAG, `Heanup widget ${formId} failed to download image, using default`);
        // 图片下载失败，使用默认图片
        this.updateWidgetDirectly(formId, dataWithoutImage, 0);
      }
    } catch (error) {
      hilog.error(0x0000, TAG, `Heanup widget ${formId} network image update error: ${error}`);

      // 失败后回退到无图片模式
      const dataWithoutImage: ExtendedWidgetData = copyWidgetData(adaptedData, { coverImage: '' });
      this.updateWidgetDirectly(formId, dataWithoutImage, retryCount);
    }
  }

  /**
   * 检查是否为网络URL
   */
  private isNetworkUrl(url: string): boolean {
    return url.startsWith('http://') || url.startsWith('https://');
  }

  /**
   * 检查是否为本地文件URI
   */
  private isLocalFileUri(url: string): boolean {
    return url.startsWith('file://');
  }

  /**
   * 处理本地图片文件，将其复制到卡片可访问的临时目录
   */
  private async processLocalImageFile(fileUri: string): Promise<string | null> {
    try {


      // 检查缓存
      if (this.imageCache.has(fileUri)) {
        const fileName = this.imageCache.get(fileUri)!;


        // 验证缓存文件是否仍然存在 - 使用 FormExtensionAbility 的 tempDir
        const formTempDir = this.context.getApplicationContext().tempDir;
        const tempFilePath = `${formTempDir}/${fileName}`;
        if (fileIo.accessSync(tempFilePath)) {
          return fileName;
        } else {
          // 缓存文件已不存在，清除缓存记录
          this.imageCache.delete(fileUri);
          hilog.warn(0x0000, TAG, `Cached file no longer exists, will reprocess: ${fileName}`);
        }
      }

      // 检查是否正在处理
      if (this.downloadingImages.has(fileUri)) {

        const existingPromise = this.downloadingImages.get(fileUri);
        if (existingPromise) {
          return await existingPromise;
        }
      }

      // 开始处理本地文件
      const processPromise = this.performLocalImageCopy(fileUri);
      this.downloadingImages.set(fileUri, processPromise);

      const fileName = await processPromise;

      // 清理处理状态
      this.downloadingImages.delete(fileUri);

      if (fileName) {
        this.imageCache.set(fileUri, fileName);

      }

      return fileName;
    } catch (error) {
      hilog.error(0x0000, TAG, `Failed to process local image ${fileUri}: ${error}`);
      this.downloadingImages.delete(fileUri);
      return null;
    }
  }

  /**
   * 执行本地图片文件复制
   */
  private async performLocalImageCopy(fileUri: string): Promise<string | null> {
    try {


      // 转换 file:// URI 为实际文件路径
      const realPath = fileUri.replace('file://', '');

      // 检查源文件是否存在
      if (!fileIo.accessSync(realPath)) {
        hilog.error(0x0000, TAG, `Source image file does not exist: ${realPath}`);
        return null;
      }

      // 生成目标文件名（包含时间戳和随机数，确保每次都不同）
      const fileExtension = this.getFileExtension(realPath) || 'jpg';
      const fileName = `widget_local_${Date.now()}_${Math.random().toString(36).substr(2, 9)}.${fileExtension}`;

      // 使用 FormExtensionAbility 的 tempDir（官方文档要求）
      const formTempDir = this.context.getApplicationContext().tempDir;
      const tempFilePath = `${formTempDir}/${fileName}`;


      // 复制文件到临时目录
      fileIo.copyFileSync(realPath, tempFilePath);


      return fileName;

    } catch (error) {
      hilog.error(0x0000, TAG, `Failed to copy local image: ${error}`);
      return null;
    }
  }

  /**
   * 获取文件扩展名
   */
  private getFileExtension(filePath: string): string | null {
    const lastDotIndex = filePath.lastIndexOf('.');
    if (lastDotIndex === -1 || lastDotIndex === filePath.length - 1) {
      return null;
    }
    return filePath.substring(lastDotIndex + 1).toLowerCase();
  }

  /**
   * 下载网络图片
   */
  private async downloadNetworkImage(imageUrl: string): Promise<string | null> {
    try {
      // 检查缓存
      if (this.imageCache.has(imageUrl)) {
        const fileName = this.imageCache.get(imageUrl)!;

        return fileName;
      }

      // 检查是否正在下载
      if (this.downloadingImages.has(imageUrl)) {

        const existingPromise = this.downloadingImages.get(imageUrl);
        if (existingPromise) {
          return await existingPromise;
        }
      }

      // 开始下载
      const downloadPromise = this.performImageDownload(imageUrl);
      this.downloadingImages.set(imageUrl, downloadPromise);

      const fileName = await downloadPromise;

      // 清理下载状态
      this.downloadingImages.delete(imageUrl);

      if (fileName) {
        this.imageCache.set(imageUrl, fileName);
      }

      return fileName;
    } catch (error) {
      hilog.error(0x0000, TAG, `Failed to download image ${imageUrl}: ${error}`);
      this.downloadingImages.delete(imageUrl);
      return null;
    }
  }

  /**
   * 执行图片下载
   */
  private async performImageDownload(imageUrl: string): Promise<string | null> {
    try {
      // 创建HTTP请求
      const httpRequest = http.createHttp();

      // 设置超时时间为3秒，适合卡片的快速响应需求
      const response = await httpRequest.request(imageUrl, {
        method: http.RequestMethod.GET,
        expectDataType: http.HttpDataType.ARRAY_BUFFER,
        connectTimeout: 3000,
        readTimeout: 3000
      });

      if (response.responseCode === http.ResponseCode.OK && response.result) {
        // 生成文件名（确保每次都不同，符合官方文档要求）
        const fileName = `widget_cover_${Date.now()}_${Math.random().toString(36).substr(2, 9)}.jpg`;

        // 使用 FormExtensionAbility 的 tempDir（官方文档要求）
        const formTempDir = this.context.getApplicationContext().tempDir;
        const filePath = `${formTempDir}/${fileName}`;


        // 保存文件
        const file = fileIo.openSync(filePath, fileIo.OpenMode.READ_WRITE | fileIo.OpenMode.CREATE);
        await fileIo.write(file.fd, response.result as ArrayBuffer);
        fileIo.closeSync(file);


        httpRequest.destroy();
        return fileName;
      } else {
        hilog.error(0x0000, TAG, `HTTP request failed: ${response.responseCode}`);
        httpRequest.destroy();
        return null;
      }
    } catch (error) {
      hilog.error(0x0000, TAG, `Download error: ${error}`);
      return null;
    }
  }

  /**
   * 获取图片文件描述符
   */
  private async getImageFileDescriptor(fileName: string): Promise<number> {
    try {
      // 使用 FormExtensionAbility 的 tempDir（官方文档要求）
      const formTempDir = this.context.getApplicationContext().tempDir;
      const filePath = `${formTempDir}/${fileName}`;


      const file = fileIo.openSync(filePath, fileIo.OpenMode.READ_ONLY);

      // 注意：文件描述符会被系统自动管理，不需要手动关闭
      // 系统会在卡片更新完成后自动关闭文件描述符

      return file.fd;
    } catch (error) {
      hilog.error(0x0000, TAG, `Failed to get file descriptor for ${fileName}: ${error}`);
      throw new Error(`Failed to get file descriptor for ${fileName}: ${error}`);
    }
  }

  /**
   * 获取默认卡片数据
   */
  private getDefaultWidgetData(): WidgetData {
    return {
      playState: {
        isPlaying: false,
        isPaused: true,
        isLoading: false
      },
      currentSong: {
        id: '',
        title: '暂无播放',
        artist: '未知艺术家',
        album: '未知专辑',
        coverImagePath: '',
        duration: 0
      },
      progress: {
        currentPosition: 0,
        duration: 0,
        percentage: 0,
        currentTimeText: '00:00',
        totalTimeText: '00:00'
      },
      playlist: {
        hasNext: false,
        hasPrevious: false,
        currentIndex: 0,
        totalCount: 0
      },
      config: {
        size: 'medium' as WidgetSize,
        theme: 'auto' as string,
        showProgress: true,
        showCover: true
      }
    };
  }

  /**
   * 初始化卡片
   */
  private async initializeWidget(formId: string, widgetSize: WidgetSize): Promise<void> {
    try {


      // 获取当前播放状态
      const currentState = await this.playerControlService.getCurrentPlayState();


      // 适配数据到指定尺寸
      const adaptedData = this.layoutManager.adaptDataForSize(currentState, widgetSize);
      await this.widgetDataManager?.saveWidgetData(formId, adaptedData);

      // 立即更新一次卡片数据
      await this.updateWidgetData(formId);


    } catch (error) {
      hilog.error(0x0000, TAG, `Failed to initialize widget ${formId}: ${error}`);
    }
  }

  /**
   * 更新卡片数据（简化版本）
   */
  private async updateWidgetData(formId: string): Promise<void> {
    try {
      const currentState = await this.playerControlService.getCurrentPlayState();

      // 获取卡片当前尺寸
      const currentSize = this.globalWidgetManager.getWidgetSize(formId) || WidgetSize.MEDIUM;

      // 适配数据到当前尺寸并直接更新
      const adaptedData = this.layoutManager.adaptDataForSize(currentState, currentSize);
      const formData = formBindingData.createFormBindingData(adaptedData);
      await formProvider.updateForm(formId, formData);


    } catch (error) {
      hilog.error(0x0000, TAG, `Failed to update widget ${formId}: ${error}`);
    }
  }


  /**
   * 处理表单尺寸变化
   */
  private async handleFormSizeChange(formId: string, oldSize: WidgetSize, newSize: WidgetSize): Promise<void> {
    try {


      // 获取当前播放状态
      const currentState = await this.playerControlService.getCurrentPlayState();

      // 使用适配器处理尺寸变化
      const adaptedData = this.sizeAdapter.handleSizeChange(formId, oldSize, newSize, currentState);

      // 更新卡片数据
      await this.widgetDataManager?.updateWidget(formId, adaptedData);


    } catch (error) {
      hilog.error(0x0000, TAG, `Failed to handle form size change: ${error}`);
    }
  }


  /**
   * 保存 Form ID 到持久化存储
   */
  private async saveFormIdToPersistence(formId: string): Promise<void> {
    try {

      const preferencesUtil = PreferencesUtil.getInstance();
      const prefs = await preferencesUtil.getPreferences(this.context);
      await preferencesUtil.addFormId(prefs, formId);

    } catch (error) {
      hilog.error(0x0000, TAG, `❌ Failed to save Form ID: ${error}`);
    }
  }

  /**
   * 从持久化存储中移除 Form ID
   */
  private async removeFormIdFromPersistence(formId: string): Promise<void> {
    try {

      const preferencesUtil = PreferencesUtil.getInstance();
      const prefs = await preferencesUtil.getPreferences(this.context);
      await preferencesUtil.removeFormId(prefs, formId);

    } catch (error) {
      hilog.error(0x0000, TAG, `❌ Failed to remove Form ID: ${error}`);
    }
  }
}