TTMusic/entry/src/main/ets/common/util/Utility.ets

import { BusinessError, pasteboard } from '@kit.BasicServicesKit';
import {
  AppUtil,
  ArrayUtil,
  Base64Util,
  DateUtil, FileUtil, ImageUtil, LogUtil,
  MD5,
  PreferencesUtil,
  RandomUtil, StrUtil } from '@pura/harmony-utils';
import { media } from '@kit.MediaKit';
import fs, { ReadTextOptions } from '@ohos.file.fs';
import { image } from '@kit.ImageKit';
import fileIo from '@ohos.file.fs';
import { VideoItem } from '../../viewmodel/VideoItem';
import { photoAccessHelper } from '@kit.MediaLibraryKit';
import { dataSharePredicates, uniformTypeDescriptor } from '@kit.ArkData';
import { systemShare } from '@kit.ShareKit';
import { fileUri, picker } from '@kit.CoreFileKit';
import {  common, UIAbility, Want } from '@kit.AbilityKit';
import { CommonConstants, STR_LOCK_VIDEO, VIP_FILEPATH } from '../constants/CommonConstants';
import { window } from '@kit.ArkUI';
import { bundleManager } from '@kit.AbilityKit'
import { pinyin4js } from '@ohos/pinyin4js';
import { VipData } from '../../viewmodel/VipData';
import { VipPage } from '../../pages/VipPage';
import { FFmpeg, FFProgressMessageParser } from '@sj/ffmpeg';
import ReqPermissionUtil from './ReqPermissionUtil';
import { commentManager } from '@kit.AppGalleryKit';
import { hilog } from '@kit.PerformanceAnalysisKit';
import Logger from './Logger';


export interface FFMpegTags {
  album?: string;
  ALBUM?: string;
  artist?: string;
  ARTIST?: string;
  TITLE?: string;
  title?: string;
  track?: string;
  TRACK?: string;
  TYER?: string;
  year?: string;
  genre?:string;
  GENRE?:string;
  date?: string;
  DATE?: string;
  LYRICS?: string;
  lyrics?: string;       // 小写变体
  USLT?: string;         // ID3v2同步歌词
  UNSYNCEDLYRICS?: string; // ID3v2非同步歌词
  // Add any other tag properties you expect
  ALBUMARTIST?:string//专辑艺术家
  COMPOSER?:string//作曲家
  LYRICIST?:string//作词家
  COMMENT?:string//注释
  albumartist?:string//专辑艺术家
  album_artist?:string//专辑艺术家
  TPE2?:string//专辑艺术家
  composer?:string//作曲家
  lyricist?:string//作词家
  TEXT?:string//作词家
  comment?:string//注释
  COMM?:string//注释
  comm?:string//注释
  disc?:string//音碟号
}

interface FFprobeFormat {
  filename: string;
  nb_streams: number;
  nb_programs: number;
  format_name: string;
  format_long_name: string;
  duration: string;
  size: string;
  bit_rate: string;
  probe_score: number;
  tags?: FFMpegTags;
}

interface FFprobeStream {
  // Define stream properties as needed
  codec_name?: string;
  sample_fmt?: string;
  codec_type?: string;  // 流类型，如"audio"、"video"
  sample_rate?: string; // 采样率
  bit_rate?: string;    // 比特率
  disposition?: StreamDisposition;  // 添加disposition属性

  bits_per_raw_sample?: string;  // 位深
  channels?: string; // 声道数
  channel_layout?: string;    // 声道布局
  start_time?: string;  // 起始播放

}

interface StreamDisposition {
  default?: number;
  dub?: number;
  original?: number;
  comment?: number;
  lyrics?: number;
  karaoke?: number;
  forced?: number;
  hearing_impaired?: number;
  visual_impaired?: number;
  clean_effects?: number;
  attached_pic?: number;  // 添加封面图片标识
  timed_thumbnails?: number;
  captions?: number;
  descriptions?: number;
  metadata?: number;
  dependent?: number;
  still_image?: number;
}

export interface FFprobeMetadata {
  streams: FFprobeStream[];
  format: FFprobeFormat;
}

export class Utility {

  private constructor() {}

  static  isOpenTime():boolean{
    const currentDate = new Date();
    const targetDate = new Date(CommonConstants.OPEN_DATE);

    if (currentDate > targetDate) {
      return true
    }
    return false
  }
  static readonly FOREVER_DATE: string = 'forever';
  /**
   * 是否会员（只看线上会员状态）
   */
  static isNoble(): boolean {
    // 只判断线上会员状态
    return PreferencesUtil.getBooleanSync('hasActiveSubscription', false);
  }

  static isForever(): boolean {
    // 判断是不是永久会员
    return PreferencesUtil.getBooleanSync('isForever', false);
  }

  /**
   * 旧版客户端判断会员状态
   * @returns
   */
  static isNobleForOld():boolean{
    if(!Utility.isOpenTime())//提交审核的审核，刚刚开始可以全部是赞助用户。
      return true
    return PreferencesUtil.getBooleanSync('isNoble',false)
  }

  /**
   * setNoble方法废弃，保留兼容但不做任何操作
   */
  static setNoble(expireDate:string){
    let isNoble = false
    if(StrUtil.isNotEmpty(expireDate)){
      if(expireDate===VipPage.FOREVER_DATE){
        isNoble = true
      }else{
        const currentDate = new Date();
        const targetDate = DateUtil.getFormatDate(expireDate)

        if (currentDate > targetDate) {
          isNoble = false
        }else{
          isNoble = true
        }
      }
    }
    PreferencesUtil.putSync('isNoble',isNoble)
  }

  /**
   * 判断用户安装app是否超过2天，超过2天（2800分钟）才展示广告 显示广告 24*60=1440  1440*2=2800
   * @param day
   * @returns
   */
  static isPassInstallTime(day:number):boolean{
    //获取当前时间
    let currentTime = new Date().getTime();

    // 尝试从存储中获取安装时间
    let installTime = getInstallTime();

    if (installTime===0||installTime === null|| installTime===undefined) {
      // 如果没有存储安装时间，则存储当前时间为安装时间
      setInstallTime(currentTime);
      return false
    } else {
      // 计算时间差（以分钟为单位）
      const timeDifference = (currentTime - installTime) / (1000 * 60);
      LogUtil.debug("onecold timeDifference=" + timeDifference)
      // 如果超过5分钟，显示广告 24*60=1440  1440*2=2800
      if (timeDifference > 24*60*day) {
        return true
      }else{
        return false
      }
    }
  }

  // 定义一个函数来获取当前的时间段
  static getTimePeriod(): string {
    const now = new Date();
    const hours = now.getHours();

    if (hours >= 5 && hours < 12) {
      return "早上好";
    } else if (hours >= 12 && hours < 18) {
      return "下午好";
    } else if (hours >= 18 && hours < 22) {
      return "晚上好";
    } else {
      return "夜深了";
    }
  }

  static optimizedFormat(speed: number): string {
    if (speed) {
      const str = speed.toFixed(2);
      let end = str.length;
      while (end > 0 && (str[end - 1] === '0' || str[end - 1] === '.')) {
        end--;
        if (str[end] === '.') {
          break;
        }
      }
      return str.slice(0, end || 1) + 'x';
    } else {
      return '1x'
    }
  }

  static  isHaoOpenTime():boolean{
    const currentDate = new Date();
    const targetDate = new Date('2025-04-20');

    if (currentDate < targetDate) {
      return true
    }
    return false
  }

  static addDays(date: Date, days: number): Date {
    const result = new Date(date);
    result.setDate(result.getDate() + days);
    return result;
  }

  static convertToKHz(sampleRateHz: string|undefined): string {
    if(StrUtil.isEmpty(sampleRateHz)||sampleRateHz ===undefined)
      return '0KHz'

    const sampleRateKHz = Number(sampleRateHz) / 1000;
    return `${sampleRateKHz} KHz`;
  }

  static  showHaoPingDialog(uicontext: UIContext,context:common.UIAbilityContext,appName:string,bundleName:string) {
    try {
      uicontext.getPromptAction().showDialog({
        title: `喜欢${appName}吗？`,
        message:'如果这个应用对您有帮助，请给我们一个五星好评，谢谢！让我们一起为鸿蒙生态助力，您的支持是我们努力提升的动力！让我们一起共赴鸿蒙满天星光。',
        buttons: [
          {
            text: '下次再说',
            color: '#000000'
          },
          {
            text: '给个好评',
            color: '#000000'
          },
        ]
      }, (err, data) => {
        if (err) {
          console.error('showDialog err: ' + err);
          return;
        }
        // 根据点击的按钮索引处理不同逻辑
        if (data.index === 1) {//查看路径
          Utility.gotoMarket(context, bundleName)
        }
        console.info('showDialog success callback, click button: ' + data.index);
      });
    } catch (error) {
      let message = (error as BusinessError).message;
      let code = (error as BusinessError).code;
      console.error(`showDialog args error code is ${code}, message is ${message}`);
    };

  }

  static isMerge(localList:Array<VideoItem>,packName:string):boolean{
    if(ArrayUtil.isEmpty(localList))
      return false
    for(let i=0;i<localList.length;i++){

      if(!localList[i].filePath.includes(packName)){
        return false
      }

    }
    return true
  }


  /**
   * 格式化媒体格式类型显示
   * @param mimeType 媒体格式类型字符串
   * @return 格式化后的显示字符串
   */
  static formatMimeType(mimeType: string | undefined): string {
    if (StrUtil.isEmpty(mimeType) || mimeType === undefined) {
      return 'unknown';
    }

    // 从MIME类型中提取格式部分，例如 "audio/mp3" -> "MP3"
    try {
      const parts = mimeType.split('/');
      if (parts.length > 1) {
        return parts[1].toUpperCase();
      } else {
        return mimeType.toUpperCase();
      }
    } catch (err) {
      console.error(`格式化媒体类型出错: ${err}`);
      return 'unknown';
    }
  }

  //根据字节获取大小
  static  formatFileSize(bytes:number) {
    const units = ['Bytes', 'Kbps', 'Mbps'];
    let size = bytes;
    let unitIndex = 0;
    while (size >= 1024 && unitIndex < units.length - 1) {
      size /= 1024;
      unitIndex++;
    }
    if(size > 1024&&unitIndex==2){
      size = size*0.1
    }
    if(size > 1024&&unitIndex==2){
      size = size*0.1
    }
    if(size > 480&&unitIndex==2){
      size = size*0.5
    }
    // 保留两位小数, 四舍五入
    size = Math.round(size * 10) / 10;
    return size + units[unitIndex]
  }

  //根据字节获取大小无单位
  static  formatFileSizeWithout(bytes:number) {
    const units = ['Bytes', 'Kbps', 'Mbps'];
    let size = bytes;
    let unitIndex = 0;
    while (size >= 1024 && unitIndex < units.length - 1) {
      size /= 1024;
      unitIndex++;
    }
    if(size > 1024&&unitIndex==2){
      size = size*0.1
    }
    if(size > 1024&&unitIndex==2){
      size = size*0.1
    }
    if(size > 480&&unitIndex==2){
      size = size*0.5
    }
    // 保留两位小数, 四舍五入
    size = Math.round(size * 10) / 10;
    return size
  }

  static copyText(text:string):boolean{
    const pasteboardData = pasteboard.createData(pasteboard.MIMETYPE_TEXT_PLAIN,text)
    const systemPasteboard  = pasteboard.getSystemPasteboard()
    systemPasteboard.setData(pasteboardData)
    systemPasteboard.getData().then((data)=>{
      return data
    })
    return false
  }


  static getDbm(rssi:number):number{

    return  Math.round((rssi / 2) + 100)
  }


  //根据数字形式的IP地址获取字符串形式的IP地址
  static getIpAddrFromNum(ipNum: number): string {

    return (ipNum >>> 24) + '.' + (ipNum >> 16 & 0xFF) + '.' + (ipNum >> 8 & 0xFF) + '.' + (ipNum & 0xFF);
  }

  static  resolveIP(ip:number) {
    let address: string = ip.toString()
    if (address === '0') {
      return '00:00:000:000'
    }
    address.substring(0, 2)
    return `${address.substring(0, 2)}:${address.substring(2, 4)}:${address.substring(4, 7)}:${address.substring(7, 10)}`
  }


  static  isFreeTime():boolean{

    if(DateUtil.isWeekend()){
      return true
    }
    let str = DateUtil.getFormatDateStr(new Date(), 'HH')
    let a = Number(str);
    if(isNaN(a))
      return false
    // ToastUtil.showToast('a='+a)
    if (a >= 7 && a <13) {//白天
      return false;
    }


    if (a >= 13 && a <20) {//白天
      return false;
    }

    if (a >= 0 && a < 7) {//凌晨
      return true;
    }
    if (a >= 20 && a <= 24) {//晚上
      return true;
    }
    return false



  }

  //判断是否是音乐文件
  static isMusicByExtension(filename:string) {
    const extensions = CommonConstants.REAL_MUSIC_FORMAT
    const lastIndex = filename.lastIndexOf('.');
    if (lastIndex!== -1) {
      const fileExtension = filename.slice(lastIndex).toLowerCase();
      return extensions.includes(fileExtension);
    }
    return false;
  }

  //判断是否是媒体文件  音乐和视频都可以
  static isMeidaByExtension(filename:string) {
    const extensions = CommonConstants.MEDIA_FORMAT
    const lastIndex = filename.lastIndexOf('.');
    if (lastIndex!== -1) {
      const fileExtension = filename.slice(lastIndex).toLowerCase();
      return extensions.includes(fileExtension);
    }
    return false;
  }

  //判断是否是视频文件
  static isVideoByExtension(filename:string) {
    const extensions = CommonConstants.VIDEO_FORMAT
    const lastIndex = filename.lastIndexOf('.');
    if (lastIndex!== -1) {
      const fileExtension = filename.slice(lastIndex).toLowerCase();
      return extensions.includes(fileExtension);
    }
    return false;
  }


  // 获取缩略图
  static async getFetchFrameByTime(filePath: string,time?:number,imageWidth?:number,imageHeight?:number) {
    if(Utility.isMusicByExtension(filePath)){
      return undefined
    }
    let pixelMap:image.PixelMap|undefined =undefined;
    try{
      // 创建AVImageGenerator对象
      let avImageGenerator: media.AVImageGenerator = await media.createAVImageGenerator()
      let file = fs.openSync(filePath, fs.OpenMode.READ_ONLY);
      let avFileDescriptor: media.AVFileDescriptor = { fd: file.fd };
      avImageGenerator.fdSrc = avFileDescriptor;
      // 初始化入参
      let timeUs = 0
      console.info('onecold time='+time)
      if(time){
        timeUs = (time > 0) ? time*50 : 0
      }
      let queryOption = media.AVImageQueryOptions.AV_IMAGE_QUERY_NEXT_SYNC
      if(imageWidth){
        imageWidth =imageWidth/2.5
      }
      if(imageHeight){
        imageHeight =  imageHeight/2.5
      }
      let param: media.PixelMapParams = {
        width : imageWidth||300,
        height : imageHeight||400,
      }
      // 获取缩略图（promise模式）
      pixelMap = await avImageGenerator.fetchFrameByTime(timeUs, queryOption, param)
      // 释放资源（promise模式）
      avImageGenerator.release()
      console.info(`release success.`)
      fs.closeSync(file);
    }catch (error) {
      console.error('uriGetAssets failed with err: ' + JSON.stringify(error));

    }

    return pixelMap
  }


  // 获取fd文件路径
  static async getFdDir(path:string){
    let fdPath = 'fd://';
    let file = await fileIo.open(path)
    fdPath = fdPath + '' + file.fd;
    return fdPath
  }



  // 根据uri获取文件名称
  static getMediaNameByUri(myUri: string) {
    let myFileName = (myUri.split('/').pop()) as string;
    return decodeURIComponent(myFileName)

  }

  static msToStandardTime(ms:string):string{
    let date = new Date(ms);
    let hours = date.getHours();
    let minutes = date.getMinutes();
    let seconds = date.getSeconds();
    return hours + ':' + minutes + ':' + seconds;

  }



  static getTimestampFromDateStr(dateStr: string, format: string = 'yyyy-MM-dd HH:mm'): number {
    // 定义正则表达式以匹配日期字符串中的各部分
    const regex = format
      .replace('yyyy', '(\\d{4})')
      .replace('MM', '(\\d{2})')
      .replace('dd', '(\\d{2})')
      .replace('HH', '(\\d{2})')
      .replace('mm', '(\\d{2})');

    const match = new RegExp(regex).exec(dateStr);

    if (!match) {
      throw new Error('Invalid date string or format');
    }

    // 解析匹配结果
    const year = Number(match[1]);
    const month = Number(match[2]);
    const day = Number(match[3]);
    const hours = Number(match[4]);
    const minutes = Number(match[5]);

    // 创建 Date 对象
    const dateObj = new Date(year, month - 1, day, hours, minutes);

    // 返回时间戳（以秒为单位）
    return Math.floor(dateObj.getTime() / 1000);
  }


  static getFormatDateStr(date: number | string | Date, format: string = 'yyyy-MM-dd HH:mm:ss'): string {
    // 将输入转换为 Date 对象
    let dateObj: Date;
    if (typeof date === 'number') {
      // 如果是十位时间戳，转换为毫秒数
      dateObj = new Date(date.toString().length === 10 ? date * 1000 : date);
    } else if (typeof date === 'string') {
      // 如果是字符串，尝试解析为 Date 对象
      dateObj = new Date(date);
    } else {
      // 如果是 Date 对象，直接使用
      dateObj = date;
    }

    // 定义替换规则
    const replacements = new Map<string, string>([
      ['yyyy', String(dateObj.getFullYear())],
      ['MM', String(dateObj.getMonth() + 1).padStart(2, '0')],
      ['dd', String(dateObj.getDate()).padStart(2, '0')],
      ['HH', String(dateObj.getHours()).padStart(2, '0')],
      ['mm', String(dateObj.getMinutes()).padStart(2, '0')],
      ['ss', String(dateObj.getSeconds()).padStart(2, '0')]
    ]);

    // 替换格式字符串中的占位符
    replacements.forEach((value, key) => {
      format = format.replace(new RegExp(key, 'g'), value);
    });

    return format;
  }



  static async getFilePixelMapBig(uri: string): Promise<string | undefined> {
    let pixelMap: image.PixelMap | undefined = undefined;
    if (Utility.isMusicByExtension(uri)) {
      pixelMap = await Utility.getFetchMetadataFromFdSrcByPromise(uri);
    } else {
      pixelMap = await Utility.getFetchFrameByTime(uri);
    }
    return pixelMap ? ImageUtil.pixelMapToBase64Str(pixelMap) : undefined;
  }

  static async getFilePixelMap(uri: string): Promise<string | undefined> {
    let pixelMap: image.PixelMap | undefined = undefined;
    if (Utility.isMusicByExtension(uri)) {
      pixelMap = await Utility.getFetchMetadataFromFdSrcByPromise(uri);
    } else {
      pixelMap = await Utility.getFetchFrameByTime(uri);
    }
    return pixelMap ? ImageUtil.pixelMapToBase64Str(pixelMap) : undefined;
  }


  //根据filePathe获取对应的播放Index
  static getIndexFromList(localList:Array<VideoItem>,filePath:string){
    let list: Array<string> = [];
    for(let i=0;i<localList.length;i++){

      if(localList[i].filePath === filePath){
        return i
      }

    }
    return 0
  }

  // 在以下demo中，使用资源管理接口获取打包在HAP内的媒体资源文件，通过设置fdSrc属性，获取音频元数据并打印，
  // 获取音频专辑封面并通过Image控件显示在屏幕上。该demo以Promise形式进行异步接口调用
  static async getFetchMetadataFromFdSrcByPromise(uri: string): Promise<image.PixelMap | undefined> {
    let cover: image.PixelMap | undefined = undefined;

    if (canIUse("SystemCapability.Multimedia.Media.AVMetadataExtractor")) {
      try {
        // 创建AVMetadataExtractor对象
        const avMetadataExtractor: media.AVMetadataExtractor = await media.createAVMetadataExtractor();
        // 设置fdSrc
        const fd = await fs.openSync(uri, fs.OpenMode.READ_ONLY);
        avMetadataExtractor.fdSrc = fd;

        // 获取元数据（promise模式）
        const metadata = await avMetadataExtractor.fetchMetadata();
        metadata.author
        console.info(`get meta data, hasAudio: ${metadata.hasAudio}`);

        // 获取专辑封面（promise模式）
        cover = await avMetadataExtractor.fetchAlbumCover();

        // 释放资源（promise模式）
        await avMetadataExtractor.release();
        console.info('release success.');
      } catch (error) {
        console.error('Error during metadata extraction:', error);
      }
    } else {
      console.warn('AVMetadataExtractor capability is not supported.');
    }

    return cover;
  }


  static formatTimestamp(timestamp: number): string {
    // 将时间戳转换为 Date 对象
    const date = new Date(timestamp);

    // 获取各个部分
    const year = date.getFullYear();
    const month = String(date.getMonth() + 1).padStart(2, '0'); // 月份从0开始，需要加1
    const day = String(date.getDate()).padStart(2, '0');
    const hours = String(date.getHours()).padStart(2, '0');
    const minutes = String(date.getMinutes()).padStart(2, '0');
    const seconds = String(date.getSeconds()).padStart(2, '0');

    // 拼接成所需的格式
    return `${year}-${month}-${day} ${hours}:${minutes}`;
  }

  //获取音乐资源的属性值，
  static async uriGetMusicAssetsFromFile(context:Context,uri:string,type:number
    ,autoParseMusicName?:boolean,originFileName?:string): Promise<VideoItem> {
    await ReqPermissionUtil.persistPermission(uri);
    //这里加个判断，如果文件的大小是0K，这个文件是空的，直接返回
    try {
      const file = fs.openSync(uri, fs.OpenMode.READ_ONLY | fs.OpenMode.CREATE)
      const fileStat = await fs.stat(file.fd);
      if (fileStat.size < 1024) {// 检查是否为有效文件（>1KB）
        console.warn(`File ${uri} is empty (0KB). Returning default VideoItem.`);
        // Return a default or empty VideoItem object
        return new VideoItem(FileUtil.getFileName(uri), uri, uri, type, 0, '');
      }
    } catch (error) {
      console.error(`Failed to get stats for file ${uri}:`, error);
      // If we can't read the file, still return a default item
      return new VideoItem(FileUtil.getFileName(uri), uri, uri, type, 0, '');
    }

    if(StrUtil.isNotEmpty(uri)&&uri.toLowerCase().endsWith('.cue')){
      const cueItem = new VideoItem(FileUtil.getFileName(uri),uri,uri,type,0,'')
      cueItem.fileName = FileUtil.getFileName(uri)
      return  cueItem
    }
    return Utility.readMetaInfoFFmpeg(context,uri,type,autoParseMusicName,originFileName)

    //华为官方不支持的格式 不支持内嵌歌词Dsf，aif，aiff，wav  不支持内嵌封面dsf，aif，aiff
    if(StrUtil.isNotEmpty(uri)){
      if(uri.toLowerCase().endsWith('.dsf')
        ||uri.toLowerCase().endsWith('.aif')
        // ||uri.toLowerCase().endsWith('.wav')
        ||uri.toLowerCase().endsWith('.aiff')){
        return Utility.readMetaInfoFFmpeg(context,uri,type,autoParseMusicName)
      }
    }


    let item:VideoItem = new VideoItem('',uri,uri,type,0,'')
    try {
      console.info('asset file.uri: ', uri);


      let file = fs.openSync(uri, fs.OpenMode.READ_ONLY | fs.OpenMode.CREATE)
      console.info("file.fd " + file.fd);
      let fdfd = 'fd://' + file.fd
      //3、通过fs.stat方法获取stat对象
      console.info('asset file.name: ', file.name);
      console.info('asset file.uri: ', uri);
      console.info('asset file.fd: ', file.fd);
      console.info('asset file.path: ', file.path);
      item = new VideoItem(file.name,uri,uri,type,0,'')
      await fs.stat(file.fd).then(async (stat: fs.Stat) => {
        console.info("get file info succeed, the size of file is " + stat.size);
        let videoSize =  stat.size
        // let videoTime = stat.ctime

        let fileSize = Utility.formatFSize(videoSize)
        //按照添加时间
        let addTime = Utility.getFormatDateStr(new Date(),'yyyy-MM-dd HH:mm');
        // console.info('onecold asset addTime: ', addTime);
        // let cTime = Utility.getFormatDateStr(stat.mtime,'yyyy-MM-dd HH:mm')

        // console.info('asset stat.ctime: ', stat.ctime);

        let musicName:string | undefined = file.name
        let artist:string | undefined = ''
        let album:string | undefined = ''
        let pixelMap:image.PixelMap|undefined|null = undefined
        let imagePath = ''

        let duration:string | undefined = ''
        let mimeType:string | undefined = ''
        let trackCount:string | undefined = ''//轨道数量
        let sampleRate:string | undefined = ''//音频的采样率单位为Hz

        if (canIUse("SystemCapability.Multimedia.Media.AVMetadataExtractor")) {
          try {
            // 创建AVMetadataExtractor对象
            const avMetadataExtractor: media.AVMetadataExtractor = await media.createAVMetadataExtractor();
            // 设置fdSrc
            const fd = await fs.openSync(uri, fs.OpenMode.READ_ONLY);
            avMetadataExtractor.fdSrc = fd;

            // 获取元数据（promise模式）
            const metadata = await avMetadataExtractor.fetchMetadata();
            if(StrUtil.isNotEmpty(metadata.title)){
              musicName = metadata.title
            }else{
              //自动解析像这样的获取不到元数据的 周杰伦-七里香.mp3文件
              console.log(`onecold musicName为空：${file.name}`);
              const musicData = parseMusicFileName(file.name);
              if (musicData.isValid)  {
                // console.log(`onecold 艺术家：${musicData.artist}`);   // 输出：周杰伦
                // console.log(`onecold 歌曲名：${musicData.title}`);   // 输出：七里香
                musicName = musicData.title
                if(artist==''||artist==undefined)
                  artist = musicData.artist
              } else {
                musicName = file.name
                // console.log("onecold 文件名格式不符合要求");
              }
            }


            if(StrUtil.isNotEmpty(metadata.artist)){
              artist = metadata.artist
            }
            if(artist==undefined)
              artist = ''

            if(StrUtil.isNotEmpty(metadata.album)){
              album = metadata.album
            }else{
              album = ''
            }

            if(StrUtil.isNotEmpty(metadata.duration)){
              if(metadata.duration)
                duration = convertSecondsToTime(metadata.duration.toString())
            }
            if(StrUtil.isNotEmpty(metadata.mimeType)){
              mimeType = metadata.mimeType
            }
            if(StrUtil.isNotEmpty(metadata.trackCount)){
              trackCount = metadata.trackCount
            }
            if(StrUtil.isNotEmpty(metadata.sampleRate)){
              sampleRate = metadata.sampleRate
            }

            let name = await MD5.digestSync(uri)

            // if(isLoadPixelMap){
              // 获取专辑封面（promise模式）
              // pixelMap = await avMetadataExtractor.fetchAlbumCover();
              // // 释放资源（promise模式）
              // await avMetadataExtractor.release();

              pixelMap = await fetchAlbumCover(avMetadataExtractor)

              // console.info('onecold release success. name= '+musicName);
              if(pixelMap!==undefined&&pixelMap!==null){
                // console.info('onecold pixelMap is not empty= '+musicName);
                imagePath = await ImageUtil.savePixelMap(pixelMap,context.filesDir,name)
                imagePath = fileUri.getUriFromPath(imagePath)
              }else{
                // console.info('onecold pixelMap is  empty= '+musicName);
                imagePath = ''
                // if(StrUtil.isNotEmpty(artist))
                //   imagePath =  await NetAxiosUtil.getLyricCover(musicName,artist)
              }


            // }else{
            //   imagePath = context.filesDir + FileUtil.separator + name
            //   imagePath = fileUri.getUriFromPath(imagePath)
            // }
            console.info('onecold release success. imagePath= '+imagePath);


          } catch (error) {
            console.error('Error during metadata extraction:', error);
          }
        } else {
          console.warn('AVMetadataExtractor capability is not supported.');
        }


        if(musicName==undefined)
          musicName = file.name

        item = new VideoItem(musicName,uri ,uri,type,videoSize,addTime,fileSize,
          imagePath,artist,album,file.name)
        item.duration = duration+'';
        item.mimeType = mimeType;
        item.trackCount = trackCount;
        item.sampleRate = sampleRate;
        item.isFav = 0;
        item.playCount = 0;
        item.pyStr = pinyin4js.getShortPinyin(musicName)

        // item.lyricContent = await extractLyricsContent(uri)
        let metaItem = await parseAudioMetadata(uri)
        if(metaItem){
          item.lyricContent = metaItem.lyricContent
          item.bit_rate = formatBitrateToKbps(metaItem.bit_rate  || "0");
          item.year = metaItem.year ||'unknown'
          item.probe_score = metaItem.probe_score
          item.nb_streams = metaItem.nb_streams
          item.nb_programs = metaItem.nb_programs
        }

      })
    } catch (error) {
      console.error('uriGetAssetsFromFile failed with err: ' + JSON.stringify(error));
    }

    return item

  }


  static async  readMetaInfoFFmpeg(context:Context,inputPath: string,type:number,
    autoParseMusicName?:boolean,originFileName?:string): Promise<VideoItem> {
    return new Promise((resolve, reject) => {
      inputPath = FileUtil.getFilePath(inputPath)
      let commands = ["ffprobe", "-v", "quiet", "-print_format", "json", "-show_format", "-show_streams", inputPath];
      let outputJson = "";


      FFmpeg.execute(commands,  {
        logCallback: (logLevel: number, logMessage: string) => console.log(`[${logLevel}]${logMessage}`),
        outputCallback: (message: string) => {
          outputJson += message;
        },
      }).then(async () => {
        try {
          const metadata: FFprobeMetadata = JSON.parse(outputJson);
          const format = metadata.format;
          console.log(`onecold outputJson：${outputJson}`);
          let file = fs.openSync(inputPath, fs.OpenMode.READ_ONLY | fs.OpenMode.CREATE)
          console.info('readMetaInfoFFmpeg asset file.path: ', file.path);
          let videoItem = new VideoItem(file.name,inputPath,inputPath,type,0,'')
          await fs.stat(file.fd).then(async (stat: fs.Stat) => {

            // 获取音频流的采样率
            let sampleRate:string|undefined = '';
            let bits_per_raw_sample:string|undefined = '';
            let channels:string|undefined = '';
            let channel_layout:string|undefined = '';
            let start_time:string|undefined = '';
            if (metadata.streams  && metadata.streams.length  > 0) {
              // 查找第一个音频流
              const audioStream = metadata.streams.find(stream  => StrUtil.isNotEmpty(stream.sample_rate));
              if (audioStream)  {
                sampleRate = audioStream.sample_rate;
                bits_per_raw_sample = audioStream.bits_per_raw_sample
                channel_layout = audioStream.channel_layout
                channels = audioStream.channels
                start_time = audioStream.start_time
              }
            }

            let videoSize =  stat.size
            const modifyTime = Utility.getFormatDateStr(stat.mtime,'yyyy-MM-dd HH:mm')
            let fileSize = Utility.formatFSize(videoSize)
            //按照添加时间
            let addTime = Utility.getFormatDateStr(new Date(),'yyyy-MM-dd HH:mm');
            // Extract artist and title from tags
            const tags = format.tags  || {};
            let artist = tags.artist ||tags.ARTIST || '';
            let title = tags.title ||tags.TITLE || '';
            let album = tags.album ||tags.ALBUM|| '';
            Logger.info('readMetaInfoFFmpeg', `原始标签 title="${title}", artist="${artist}", album="${album}"`);
            console.log(`onecold tags.tags：${JSON.stringify(tags)}`);
            // 检查是否有乱码
            if (hasGarbledText(tags))  {
              // 第二次尝试用华为的接口提取元数据
              let  hwTags = await extractHwMediaMetadata(inputPath)
              artist = hwTags?.artist|| '';
              title = hwTags?.title|| '';
              album = hwTags?.album|| '';
              console.info('onecold 乱码修正 artist='+artist);
              console.info('onecold 乱码修正 title='+title);
              console.info('onecold 乱码修正 album='+album);
            }
            Logger.info('readMetaInfoFFmpeg', `最终标签 title="${title}", artist="${artist}", album="${album}", autoParse=${autoParseMusicName}`);
            if(StrUtil.isEmpty(title)){
              //自动解析像这样的获取不到元数据的 周杰伦-七里香.mp3文件
              console.log(`onecold musicName为空：${file.name}`);
              // let autoParseMusicName = PreferencesUtil.getBooleanSync('autoParseMusicName',false)
              if(autoParseMusicName){
                const musicData = parseMusicFileName(file.name);
                if (musicData.isValid)  {
                  console.log(`onecold 艺术家：${musicData.artist}`);   // 输出：周杰伦
                  console.log(`onecold 歌曲名：${musicData.title}`);   // 输出：七里香
                  title = musicData.title
                  if(artist==''||artist==undefined)
                    artist = musicData.artist
                } else {

                  title = originFileName||file.name
                }
              }else{
                title =  originFileName||file.name
              }

            }

            let name: string = title;
            if (!name) {
              name = getFileNameWithoutExtension(inputPath);
            }
            let pixelMap:image.PixelMap|undefined|null = undefined
            // Create VideoItem
            videoItem = new VideoItem(
              name,
              inputPath, // id can be generated or left empty
              inputPath,
              type, // assuming it's local
              videoSize,
              addTime // convert to ISO string
            );

            // Set additional properties from format metadata
            videoItem.artist  = artist;
            videoItem.album  = album;
            videoItem.sampleRate = sampleRate
            videoItem.pyStr = pinyin4js.getShortPinyin(name)
            videoItem.fileName  = FileUtil.getFileName(inputPath);
            if(format.duration)
              videoItem.duration = formatDuration(format.duration.toString()||'00:00')
            videoItem.size  = fileSize;
            videoItem.bit_rate  =formatBitrateToKbps(format.bit_rate  || "0");
            videoItem.probe_score  = format.probe_score;
            videoItem.nb_streams  = format.nb_streams;
            videoItem.nb_programs  = format.nb_programs;
            videoItem.year  = tags.TYER || tags.date ||tags.DATE|| ''; // try different tag names for year
            videoItem.lyricContent  = tags.LYRICS || tags.lyrics  ||  tags.USLT || tags.UNSYNCEDLYRICS || '';
            //console.info('readMetaInfoFFmpeg   videoItem.lyricContent: ',  videoItem.lyricContent);
            // 如果标准字段没有歌词，则尝试解析 `lyrics-` 字段
            // tags 必须是 Record<string, string | undefined>（或 any）
            // 如果还是没有歌词内容，尝试查找自定义的lyrics-开头的属性(电脑版音乐标签内嵌歌词就是lyrics-XXX)
            if(StrUtil.isEmpty( videoItem.lyricContent)){
              const tagsRecord = tags as Record<string, string>;
              const possibleKeys = Object.keys(tagsRecord);
              for (let i = 0; i < possibleKeys.length;  i++) {
                const key = possibleKeys[i];
                if (key && key.toLowerCase().startsWith('lyrics-'))  {
                  //console.info('readMetaInfoFFmpeg  videoItem.key:  ', key);
                  // 通过转换后的 Record 类型安全访问属性
                  videoItem.lyricContent  = tagsRecord[key];
                  //console.info('readMetaInfoFFmpeg  videoItem.lyricContent2:  ', videoItem.lyricContent);
                  if (videoItem.lyricContent)  {
                    break;
                  }
                }
              }
            }


            videoItem.genre  = tags.genre||tags.GENRE|| '';
            videoItem.track  = tags.track||tags.TRACK|| '';

            videoItem.ALBUMARTIST  = tags.ALBUMARTIST||tags.album_artist||tags.albumartist||tags.TPE2|| '';
            videoItem.COMPOSER  = tags.COMPOSER||tags.composer|| '';
            videoItem.LYRICIST  = tags.LYRICIST||tags.lyricist||tags.TEXT ||'';
            videoItem.COMMENT  = tags.COMMENT||tags.comment||tags.COMM|| '';
            videoItem.disc  = tags.disc|| '';

            videoItem.bits_per_raw_sample = bits_per_raw_sample ||'1'
            videoItem.channel_layout = channel_layout || ''
            videoItem.channels = channels ||'0'
            videoItem.start_time = start_time || '00:00'

            videoItem.mimeType = format.format_name
            // 检查是否有封面图片流
            const hasCover = metadata.streams.some(stream  =>
            stream.disposition?.attached_pic  === 1
            );
            console.info('onecold readMetaInfoFFmpeg asset hasCover: ', hasCover);
            let md5Name = await MD5.digestSync(inputPath)
            let imagePath = `${context.filesDir}${FileUtil.separator}${md5Name}.jpg`;
            console.info('onecold readMetaInfoFFmpeg asset imagePath: ', imagePath);
            // 如果有封面图片，则提取
            try {
              if (hasCover) {
                //提取封面
                let isSuccess:boolean= await getFFmpegCover(inputPath, imagePath);

                if(isSuccess){
                  imagePath = fileUri.getUriFromPath(imagePath)
                }else{
                  // 使用华为接口提取封面（备用方案）
                  console.warn('onecold 提取封面图片失败，使用华为接口提取封面');
                  imagePath = await extractCoverWithHwInterface(inputPath, context, name);
                }
                videoItem.pixelMapPath  = imagePath;
              }else if(Utility.isVideoByExtension(inputPath)){
                pixelMap = await Utility.getFetchFrameByTime(inputPath)
                if(pixelMap!==undefined&&pixelMap!==null){
                  imagePath = await ImageUtil.savePixelMap(pixelMap,context.filesDir,md5Name)
                  imagePath = fileUri.getUriFromPath(imagePath)
                }else{
                  imagePath = ''
                }
                imagePath = fileUri.getUriFromPath(imagePath)
                videoItem.pixelMapPath  = imagePath;
              }
            } catch (error) {
              console.warn('onecold 提取封面图片失败:', error.message);
            }
            if(sampleRate&&format.bit_rate){
              videoItem.md5Str = determineAudioQuality( videoItem.mimeType,Number(format.bit_rate),Number(sampleRate))
            }
            console.info('onecold Successfully  parsed metadata:', videoItem);
            resolve(videoItem);
          })


        } catch (error) {
          console.error('onecold Failed  to parse metadata:', error);
          reject(new Error('onecold Failed to parse metadata: ' + error.message));
        }
      }).catch((error: Error) => {
        console.error(`onecold Execution  failed with error: ${error.message}`);
        reject(error);
      });
    });
  }


  private completionNum(num: number): string | number {
    if (num < 10) {
      return '0' + num;
    } else {
      return num;
    }
  }

  //根据字节获取大小
  static  formatFSize(bytes:number):string {
    const units = ['Bytes', 'K', 'M', 'G'];
    let size = bytes;
    let unitIndex = 0;
    while (size >= 1024 && unitIndex < units.length - 1) {
      size /= 1024;
      unitIndex++;
    }

    // 保留两位小数, 四舍五入
    size = Math.round(size * 10) / 10;
    return size + units[unitIndex]
  }



  static gotoMarket(context:common.UIAbilityContext,bundleName:string) {

    const isAvailable = canIUse('SystemCapability.AppGalleryService.Distribution.Comment');
    if(isAvailable) {
      try {//需要api 20 才可以调用用户评论对话框showCommentDialog
        commentManager.showCommentDialog(context).then(()=>{
          hilog.info(0, 'TAG', "succeeded in showing commentDialog.");
          return
        }).catch((error: BusinessError<Object>) => {
          Utility.goMarket(context,bundleName)
          hilog.error(0, 'TAG', `showCommentDialog failed, Code: ${error.code}, message: ${error.message}`);
        });
      } catch (error) {
        Utility.goMarket(context,bundleName)
        hilog.error(0, 'TAG', `showCommentDialog failed, Code: ${error.code}, message: ${error.message}`);
      }

    }else{
      Utility.goMarket(context,bundleName)
    }


  }

  static async goMarket(context:common.UIAbilityContext,bundleName:string){
    const want: Want = {
      uri: `store://appgallery.huawei.com/app/detail?id=${bundleName}`
    };

    context.startAbility(want).then(()=>{
      //拉起成功
    }).catch(()=>{
      // 拉起失败
    });
  }

  static async  doShare(item:VideoItem,context:common.UIAbilityContext){
    // 生成视频封面图

    const imagePackerApi: image.ImagePacker = image.createImagePacker();
    const buffer: ArrayBuffer = await (imagePackerApi.packing(await Utility.getFetchFrameByTime(item.filePath), {
      format: 'image/jpeg',
      quality: 30
    }) as Promise<ArrayBuffer>);

    // 构造ShareData，需配置一条有效数据信息
    let shareData: systemShare.SharedData = new systemShare.SharedData({
      utd: uniformTypeDescriptor.UniformDataType.MEDIA,
      uri: fileUri.getUriFromPath(item.filePath),
      title: item.name, // 不传title字段时,显示视频文件名
      // description: '好听的音乐', // 不传description字段时,显示视频大小
      thumbnail: new Uint8Array(buffer), // 优先使用传递的缩略图做预览 不传则默认使用视频第一帧画面做预览图
    });

    // 进行分享面板显示
    let controller: systemShare.ShareController = new systemShare.ShareController(shareData);
    // let context = getContext(this) as common.UIAbilityContext;
    controller.show(context, {
      selectionMode: systemShare.SelectionMode.SINGLE,
      previewMode: systemShare.SharePreviewMode.DETAIL,
    }).then(() => {
      console.info('ShareController show success.');
    }).catch((error: BusinessError) => {
      console.error(`ShareController show error. code: ${error.code}, message: ${error.message}`);
    });


  }



  //分享索引index的视频
  static async  doShareMusic(item:VideoItem,context:common.UIAbilityContext){

    // 构造ShareData，需配置一条有效数据信息
    let shareData: systemShare.SharedData = new systemShare.SharedData({
      utd: uniformTypeDescriptor.UniformDataType.AUDIO,
      uri: fileUri.getUriFromPath(item.filePath),
      title: item.name, // 不传title字段时,显示视频文件名
      description: '好听的音乐', // 不传description字段时,显示视频大小
    });

    // 进行分享面板显示
    let controller: systemShare.ShareController = new systemShare.ShareController(shareData);
    // let context = getContext(this) as common.UIAbilityContext;
    controller.show(context, {
      selectionMode: systemShare.SelectionMode.SINGLE,
      previewMode: systemShare.SharePreviewMode.DETAIL,
    }).then(() => {
      console.info('ShareController show success.');
    }).catch((error: BusinessError) => {
      console.error(`ShareController show error. code: ${error.code}, message: ${error.message}`);
    });


  }

  static getNameList(localList:Array<VideoItem>){
    let list: Array<string> = [];
    for(let i=0;i<localList.length;i++){
      if(StrUtil.isNotEmpty(localList[i].name))
        list.push(localList[i].name);
    }
    return list
  }
  //获取列表有封面的值
  static getFirstCoverFromList(localList:Array<VideoItem>):string{
    let list: Array<string> = [];
    for(let i=0;i<localList.length;i++){
      let pix = localList[i].pixelMapPath
      if(pix){
        return pix
      }

    }
    return ''
  }

  //根据type获取对应的播放列表(CommonConstants.TYPE_LOCAL：本地，CommonConstants.TYPE_Dir：私密视频)
  static getGlobalNameList(localList:Array<VideoItem>,type:number){
    let list: Array<string> = [];
    for(let i=0;i<localList.length;i++){

      if(localList[i].type === type){
        list.push(localList[i].name);
      }

    }
    return list
  }

  //根据type获取对应的播放列表(CommonConstants.TYPE_LOCAL：本地，CommonConstants.TYPE_LOCK：私密视频)
  static getGlobalList(localList:Array<VideoItem>,type:number){
    let list: Array<VideoItem> = [];
    for(let i=0;i<localList.length;i++){
      //播放列表过滤.cue文件
      if(localList[i].type === type&&!localList[i].filePath.toLowerCase().endsWith('.cue') ){
        list.push(localList[i]);
      }

    }
    return list
  }
  //以下是实现 getPlayItem 方法的代码，根据 playType 的值返回随机项或第一项
  static getPlayItem(localList: Array<VideoItem>, playType: number): VideoItem | undefined {
    // 处理空列表情况
    if (!localList || localList.length  === 0) {
      return undefined;
    }

    // 当 playType 为 3 时随机返回一个元素
    if (playType === 3) {
      const randomIndex = Math.floor(Math.random()  * localList.length);
      return localList[randomIndex];
    }
    // 其他情况返回第一个元素
    else {
      return localList[0];
    }
  }

  /**
   * 根据文件路径从项数组中查找对应的VideoItem
   * @param list VideoItem数组
   * @param filePath 文件路径
   * @returns 对应的VideoItem，如果未找到则返回undefined
   */
  static getItemByFilePath(list: Array<VideoItem>, filePath: string): VideoItem | undefined {
    if (!list || list.length === 0 || !filePath) {
      return undefined;
    }

    for (let i = 0; i < list.length; i++) {
      if (list[i].filePath === filePath) {
        return list[i];
      }
    }

    return undefined;
  }

  //根据filePath获取当前索引index
  static getCurIndexFromGlobalList(localList:Array<VideoItem>,filePath:string){
    let index: number = 0;
    for(let i=0;i<localList.length;i++){

      if(localList[i].filePath === filePath){
        index = i
        return index
      }

    }
    return index
  }


  //新的查询是否收藏的方法
  static  getIsFav(favList: Array<VideoItem>,item:VideoItem|undefined){
    if(ArrayUtil.isEmpty(favList)){
      return false
    }
    if(item===undefined){
      return false
    }
    for(let i=0;i<favList.length;i++){

      if(favList[i].filePath === item.filePath&&favList[i].isFav===1){

        return true
      }

    }
    return false
  }

  static  getIsFac(facList: Array<String>,item:VideoItem|undefined){
    if(ArrayUtil.isEmpty(facList)){
      return false
    }
    if(item===undefined){
      return false
    }
    for(let i=0;i<facList.length;i++){

      if(facList[i] === item.name||facList[i]===item.fileName){

        return true
      }

    }
    return false
  }

  static resourceToString(context:Context,resource:Resource){
    if(!context||!resource)
      return ''
    return context.resourceManager.getStringSync(resource).toString()
  }


  //根据type获取对应的播放列表(CommonConstants.TYPE_LOCAL：本地，CommonConstants.TYPE_LOCK：私密视频)
  static getGlobalMusicList(localList:Array<VideoItem>,type:number){
    let list: Array<VideoItem> = [];
    for(let i=0;i<localList.length;i++){

      if(localList[i].type === type){
        list.push(localList[i]);
      }

    }
    return list
  }


  static  isHaoFreeTime():boolean{
    if(DateUtil.isWeekend()){
      return true
    }
    let str = DateUtil.getFormatDateStr(new Date(), 'HH')
    let a = Number(str);
    if(isNaN(a))
      return false
    // ToastUtil.showToast('a='+a)
    if (a >= 8 && a <13) {//白天
      return false;
    }


    if (a >= 13 && a <20) {//白天
      return false;
    }

    if (a >= 0 && a < 8) {//凌晨
      return true;
    }
    if (a >= 20 && a <= 24) {//晚上
      return true;
    }
    return false



  }



  static getParentDirectory(filePath: string): string {
    // 使用正则表达式匹配路径分隔符（支持 Unix 和 Windows）
    const lastSlashIndex = Math.max(filePath.lastIndexOf('/'), filePath.lastIndexOf('\\'));

    if (lastSlashIndex === -1) {
      return '';
    }

    return filePath.substring(0, lastSlashIndex);
  }







  // 开启沉浸式显示模式
  static async enableFullScreen() {
    const ctx = getContext()
    const win = await window.getLastWindow(ctx)
    win.setWindowLayoutFullScreen(true)
    const top = win.getWindowAvoidArea(window.AvoidAreaType.TYPE_SYSTEM)
    AppStorage.setOrCreate('topHeight', px2vp(top.topRect.height))
    AppStorage.setOrCreate('bottomHeight', px2vp(top.bottomRect.height))
  }

  // 关闭沉浸式显示模式
  static async disableFullScreen() {
    const ctx = getContext()
    const win = await window.getLastWindow(ctx)
    win.setWindowLayoutFullScreen(false)
    AppStorage.setOrCreate('topHeight', 0)
    AppStorage.setOrCreate('bottomHeight', 0)
  }

  // 设置状态栏文字颜色为白色
  static async setStatusBarLight() {
    const ctx = getContext()
    const win = await window.getLastWindow(ctx)
    win.setWindowSystemBarProperties({
      statusBarContentColor: '#ffffff'
    })
  }

  // 设置状态栏文字颜色为黑色
  static async setStatusBarDark() {
    const ctx = getContext()
    const win = await window.getLastWindow(ctx)
    win.setWindowSystemBarProperties({
      statusBarContentColor: '#000000'
    })
  }

  // 优化点：完全基于Promise链的异步处理
  static async getAppName(context: Context): Promise<string> {
    try {
      // 1. 同步化BundleInfo获取
      const bundleInfo = await bundleManager.getBundleInfoForSelf(
        bundleManager.BundleFlag.GET_BUNDLE_INFO_WITH_APPLICATION
      );

      // 2. 安全获取labelId（新增空值校验）
      const labelId = bundleInfo.appInfo?.labelId;
      if (!labelId || labelId <= 0) {
        throw new Error("Invalid labelId: " + labelId);
      }

      // 3. 异步资源解析（替换危险的getStringSync）
      return await context.resourceManager.getStringValue(labelId);

    } catch (err) {
      console.error(`[${new  Date().toISOString()}] AppName Error: CODE=${err.code},  MSG=${err.message}`);

      // 4. 多级降级策略
      return AppUtil.getBundleName()                // 最终兜底
    }
  }


  //按名称升序
  static doSortListAscending( list:Array<VideoItem>,isShowFileName?:boolean){
    let options: Intl.CollatorOptions = {
      localeMatcher: "lookup",
      usage: "sort",
      sensitivity: "accent", // 对中文更友好
      numeric:true
    };

    const collator = new Intl.Collator("zh-CN", options);

    list.sort((a, b) => {
      const typeOrder = getTypeOrder(a.type) - getTypeOrder(b.type);
      if (typeOrder !== 0) {
        return typeOrder;
      }
      if(isShowFileName){
        return collator.compare(a.fileName||a.name, b.fileName||b.name)
      }else{
        return collator.compare(a.name, b.name)
      }

    });
  }
  //按名称降序
  static doSortListDescending(list:Array<VideoItem>,isShowFileName?:boolean){
    const options: Intl.CollatorOptions = {
      localeMatcher: "lookup",
      usage: "sort",
      sensitivity: "accent", // 对中文更友好
      numeric:true
    };

    const collator = new Intl.Collator("zh-CN", options);

    list.sort((a, b) => {
      const typeOrder = getTypeOrder(a.type) - getTypeOrder(b.type);
      if (typeOrder !== 0) {
        return typeOrder;
      }

      if(isShowFileName){
        return collator.compare(b.fileName||b.name, a.fileName||a.name)
      }else{
        return collator.compare(b.name, a.name)
      }

      // const partsA = extractParts(a.name);
      // const partsB = extractParts(b.name);
      //
      // const nonNumericComparison = collator.compare(partsB.nonNumeric, partsA.nonNumeric);
      // if (nonNumericComparison !== 0) {
      //   return nonNumericComparison;
      // }

      // return partsB.numeric - partsA.numeric;
    });
  }

  /**
   * 读取本地会员到期时间（解密.vv文件）
   * @returns
   */
  static async getLocalNobleExpireDate(): Promise<string> {
    // return "2025-08-08 12:00";
    try {
      const documentViewPicker = new picker.DocumentViewPicker()
      let documentSaveResult = await documentViewPicker.save({ pickerMode: picker.DocumentPickerMode.DOWNLOAD })
      let download_path = new fileUri.FileUri(documentSaveResult[0]).path + '/'
      let filePath = download_path + STR_LOCK_VIDEO+ '/' + VIP_FILEPATH
      let expireDate =  Utility.readDataFromFile(filePath)

      return expireDate;
    } catch (e) {
      return '';
    }
  }

  static readDataFromFile(filePath: string) {
    if(!FileUtil.accessSync(filePath)){
      return ''
    }
    let readTextOptions: ReadTextOptions = {
      offset: 0,
      length: 0,
      encoding: 'utf-8'
    };
    let stat = fileIo.statSync(filePath);
    readTextOptions.length = stat.size;
    let str = fileIo.readTextSync(filePath, readTextOptions);
    const parsedData:VipData = JSON.parse(str)  as VipData;
    // LogUtil.info('onecold parsedData.expireDate = ' + parsedData.expireDate)
    let result = Base64Util.decodeSync( parsedData.expireDate)
    // LogUtil.info('onecold 解密的result = ' +StrUtil.unit8ArrayToStr(result))
    return StrUtil.unit8ArrayToStr(result);
  }


}


interface PathStat {
  path: string;
  isDirectory: boolean;
}
async function isDirectory(filePath: string): Promise<boolean> {
  try {
    const stat = await fs.stat(filePath);
    return stat.isDirectory();
  } catch (error) {
    console.error('Error getting file stat:', error);
    return false;
  }
}

//排序模式参数
interface VideoNameParts {
  nonNumeric: string;
  numeric: number;
  suffix:string;
}

function extractParts(name: string): VideoNameParts {
  // 更完善的正则表达式，处理各种情况
  // 匹配：非数字前缀 + 数字部分 + 可选的剩余部分
  const match = name.match(/^(\D*)(\d+)(.*)$/);
  if (match) {
    return {
      nonNumeric: match[1] || '', // 非数字前缀
      numeric: parseInt(match[2], 10), // 数字部分
      suffix: match[3] || '' // 剩余部分（可能包含扩展名等）
    };
  }

  // 如果没有找到数字模式，将整个名称作为非数字部分
  return {
    nonNumeric: name,
    numeric: 0,
    suffix: ''
  };
}

function getInstallTime(): number | null {
  // 从本地存储中获取安装时间
  return PreferencesUtil.getNumberSync('installTime')
}

function setInstallTime(time: number) {
  // 将安装时间存储到本地存储中
  PreferencesUtil.putSync('installTime',time)
}

function fetchAlbumCover(avMetadataExtractor: media.AVMetadataExtractor): Promise<image.PixelMap | null> {
  return new Promise((resolve, reject) => {
    avMetadataExtractor.fetchAlbumCover((error: BusinessError, pixelMap: image.PixelMap) => {
      if (error) {
        console.error(`Failed to fetch AlbumCover, error = ${JSON.stringify(error)}`);
        resolve(null);
      } else {
        resolve(pixelMap);
      }
      avMetadataExtractor.release();
    });
  });
}

//排序类型
function getTypeOrder(type: number) {
  switch (type) {
    case CommonConstants.TYPE_IS_DIR:
      return 1; // First
    case CommonConstants.TYPE_IS_CSJAD:
      return 2; // Middle
    case CommonConstants.TYPE_LOCAL:
      return 3; // Last
    default:
      return 4; // Unknown types, if any, go last
  }
}

function convertSecondsToTime(secondsStr: string): string {
  if (!secondsStr || isNaN(Number(secondsStr))) {
    return "00:00";
  }

  let seconds = parseInt(secondsStr, 10);
  seconds = Math.floor(seconds / 1000);
  const hours = Math.floor(seconds / 3600);
  const minutes = Math.floor((seconds % 3600) / 60);
  const secs = seconds % 60;

  const formatNumber = (num: number) => num.toString().padStart(2, '0');

  if (hours > 0) {
    return `${formatNumber(hours)}:${formatNumber(minutes)}:${formatNumber(secs)}`;
  } else {
    return `${formatNumber(minutes)}:${formatNumber(secs)}`;
  }
}

/**
 * 秒数 → 智能时间格式（自动选择 MM:SS 或 HH:MM:SS）
 * @param seconds 秒数字符串（如 "283.524351" 或 "3675"）
 * @param forceHHMMSS 强制使用 HH:MM:SS 格式（默认自动判断）
 * @returns 格式化后的时间字符串
 */
function formatDuration(seconds: string, forceHHMMSS: boolean = false): string {
  // 1. 校验输入
  const secNum = parseFloat(seconds);
  if (isNaN(secNum) || secNum < 0) return forceHHMMSS ? "00:00:00" : "00:00";

  // 2. 计算时间分量
  const totalSec = Math.floor(secNum);
  const hours = Math.floor(totalSec  / 3600);
  const mins = Math.floor((totalSec  % 3600) / 60);
  const secs = totalSec % 60;

  // 3. 格式化输出
  const pad = (n: number) => n.toString().padStart(2,  '0');

  return forceHHMMSS || hours > 0
    ? `${pad(hours)}:${pad(mins)}:${pad(secs)}`  // HH:MM:SS
    : `${pad(mins)}:${pad(secs)}`;              // MM:SS
}



/**
 * 定义解析结果的数据结构
 */
export class MusicInfo {
  artist: string = "";  // 艺术家名称
  title: string = "";   // 歌曲名称
  isValid: boolean = false;  // 格式是否有效
}

/**
 * 精简版常见中文姓氏（音乐场景优化版）
 */
const COMMON_CHINESE_SURNAMES = [
// 超常见姓氏（覆盖约80%人口）
  '李','王','张','刘','陈','杨','黄','赵','吴','周',
  '徐','孙','马','朱','胡','林','郭','何','高','罗',
  '郑','梁','谢','宋','唐','许','韩','邓','曹','彭',
  '曾','萧','田','董','潘','袁','于','蔡','余','杜',

  // 音乐行业常见姓氏（歌手高频姓）
  '汪','苏','薛','谭','华','金','魏','陶','姜','窦',
  '章','毛','易','方','宋','任','沈','贾','江','孔',

  // 组合/乐队常见字
  '羽','泉','信','乐','花','飞','龙','风','云','草'
];

/**
 * 歌手特征关键词（优化版）
 */
const ARTIST_KEYWORDS = [
// 中文特征
  '乐队','组合','乐团','和','&','合唱',' featuring',
  // 英文特征
  'feat','ft','with','vs','presents','presents',
  // 符号特征
  '×','X','※','◆','♫'
];
/**
 * 智能解析音乐文件名（支持多种分隔符和格式）
 * @param fileName - 待解析的完整文件名
 * @returns 结构化音乐信息
 */
/**
 * 智能解析音乐文件名
 */
/**
 * 智能解析音乐文件名（改进版）
 */
export function parseMusicFileName(fileName: string): MusicInfo {
  const result: MusicInfo = new MusicInfo();
  if (!fileName) return result;

  // 预处理
  const cleanName: string = fileName.trim();
  const lastDotIndex: number = cleanName.lastIndexOf('.');
  const baseName: string = lastDotIndex > 0 ?
    cleanName.substring(0, lastDotIndex).trim() :
    cleanName;

  // 支持的分隔符（明确定义类型）
  const separators: string[] = ['-', '－', '—', '~', '～'];

  // 寻找分隔位置
  let bestSplitIndex: number = -1;

  for (const sep of separators) {
    const index: number = baseName.lastIndexOf(sep);
    if (index > bestSplitIndex) {
      bestSplitIndex = index;
    }
  }

  // 分割字符串
  if (bestSplitIndex > 0 && bestSplitIndex < baseName.length - 1) {
    let part1: string = baseName.substring(0, bestSplitIndex).trim();
    let part2: string = baseName.substring(bestSplitIndex + 1).trim();

    // 处理前缀序号
    part1 = part1.replace(/^\d+[\s\.\-－ —~～]*/, '').trim();

    // 判断歌手部分（改进版）
    const identifyArtist = (str: string): boolean => {
      // 检查是否包含常见歌手关键词
      if (ARTIST_KEYWORDS.some((keyword: string) => str.includes(keyword))) {
        return true;
      }

      // 检查是否以常见姓氏开头
      return COMMON_CHINESE_SURNAMES.some((surname: string) =>
      str.startsWith(surname) ||
      new RegExp(`[ ,，、＆&]${surname}`).test(str)
      );
    };

    // 判断歌手位置（改进逻辑）
    const part1IsArtist: boolean = identifyArtist(part1);
    const part2IsArtist: boolean = identifyArtist(part2);

    // 特殊处理：如果两个部分都识别为艺术家或都不是艺术家
    if ((part1IsArtist && part2IsArtist) || (!part1IsArtist && !part2IsArtist)) {
      // 基于常见模式判断：通常"歌曲名 - 歌手"格式更常见
      // 或者根据长度判断，歌手名通常较短
      if (part2.length <= part1.length && identifyArtist(part2)) {
        result.artist = part2;
        result.title = part1;
      } else {
        result.artist = part1;
        result.title = part2;
      }
    } else if (part1IsArtist && !part2IsArtist) {
      result.artist = part1;
      result.title = part2;
    } else if (part2IsArtist && !part1IsArtist) {
      result.artist = part2;
      result.title = part1;
    } else {
      // 默认处理
      result.artist = part1;
      result.title = part2;
    }

    // 后处理
    result.title = result.title
      .replace(/(?:\(|（)[^）)]*(?:）|\))/g, '')
      .replace(/\s*[—-]\s*(?:Live|Version|Remix|伴奏).*/i, '')
      .trim();

    // 有效性验证
    result.isValid = result.artist.length > 0 &&
      result.title.length > 0;
  } else {
    result.title = baseName;
    result.isValid = false;
  }

  return result;
}


function getFileNameWithoutExtension(filePath: string): string {
  const fileName = filePath.split('/').pop()  || '';
  const lastDotIndex = fileName.lastIndexOf('.');
  return lastDotIndex > 0 ? fileName.substring(0,  lastDotIndex) : fileName;
}


/**
 * 从音乐文件中提取封面
 * @param inputPath 音乐文件路径
 * @returns Promise<void>
 */
// async function getFFmpegCover(inputPath: string, outputPath: string) : Promise<boolean>{
//   let commands = ["ffmpeg", "-y","-i", inputPath, "-map", "0:v", "-c:v", "copy", outputPath];
//   FFmpeg.execute(commands, {
//     logCallback: (logLevel: number, logMessage: string) => {
//       console.info(`[FFmpeg LOG] [${logLevel}]${logMessage}`)
//     },
//     progressCallback: (message: string) => {
//       console.info(`[FFmpeg progress]${JSON.stringify(FFProgressMessageParser.parse(message))}`)
//     },
//   })
//     .then(() => {
//       return true
//       console.info("FFmpeg execution succeeded.");
//     })
//     .catch((error: Error) => {
//       return false
//       console.error(`FFmpeg execution failed with error: ${error.message}`);
//     });
//   return ;
// }

/**
 * 使用华为接口提取音乐文件封面（备用方案）
 * @param inputPath 音乐文件路径
 * @param context 应用上下文
 * @param name 文件名称（用于保存）
 * @returns Promise<string> 返回封面图片的URI路径，失败返回空字符串
 */
async function extractCoverWithHwInterface(inputPath: string, context: Context, name: string): Promise<string> {
  try {
    // 创建AVMetadataExtractor对象
    const avMetadataExtractor: media.AVMetadataExtractor = await media.createAVMetadataExtractor();
    // 设置fdSrc
    const fd = await fs.openSync(inputPath, fs.OpenMode.READ_ONLY);
    avMetadataExtractor.fdSrc = fd;

    // 获取专辑封面
    const pixelMap = await fetchAlbumCover(avMetadataExtractor);

    // 释放资源（promise模式）
    await avMetadataExtractor.release();
    console.info('onecold release success. name= ' + name);

    if (pixelMap !== undefined && pixelMap !== null) {
      const imagePath = await ImageUtil.savePixelMap(pixelMap, context.filesDir, name);
      return fileUri.getUriFromPath(imagePath);
    } else {
      return '';
    }
  } catch (error) {
    console.error('华为接口提取封面失败:', error instanceof Error ? error.message : String(error));
    return '';
  }
}

/**
 * 从音乐文件中提取封面
 * @param inputPath 音乐文件路径
 * @param outputPath 封面输出路径
 * @returns Promise<boolean> 表示操作是否成功
 */
async function getFFmpegCover(inputPath: string, outputPath: string): Promise<boolean> {
  let commands = ["ffmpeg", "-y","-i", inputPath, "-map", "0:v", "-c:v", "copy", outputPath];

  try {
    await FFmpeg.execute(commands,  {
      logCallback: (logLevel: number, logMessage: string) => {
        console.info(`[FFmpeg  LOG] [${logLevel}] ${logMessage}`);
      },
      progressCallback: (message: string) => {
        console.info(`[FFmpeg  progress] ${JSON.stringify(FFProgressMessageParser.parse(message))}`);
      },
    });
    console.info("FFmpeg  execution succeeded.");
    return true;
  } catch (error) {
    console.error(`FFmpeg  execution failed with error: ${error instanceof Error ? error.message  : String(error)}`);
    try {
      let primaryCommands = [
        "ffmpeg", "-y",
        "-i", inputPath,
        "-map", "0:2",      // 直接提取第三个流（Stream #0:2），这是附加图片流
        "-c:v", "copy",     // 直接复制流数据
        outputPath
      ];
      await FFmpeg.execute(primaryCommands,  {
        logCallback: (logLevel: number, logMessage: string) => {
          console.info(`[FFmpeg  LOG] [${logLevel}] ${logMessage}`);
        },
        progressCallback: (message: string) => {
          console.info(`[FFmpeg  progress] ${JSON.stringify(FFProgressMessageParser.parse(message))}`);
        },
      });
      console.info("FFmpeg  2 execution succeeded.");
      return true;
    }catch (error) {
      console.error(`FFmpeg  execution 2 failed with error: ${error instanceof Error ? error.message  : String(error)}`);
      return false;
    }
  }
}
/**
 * 从视频文件中提取封面 提前视频第5帧的封面
 * @param inputPath 文件路径
 * @returns Promise<void>
 */
async function getVideoFFmpegCover(inputPath: string, outputPath: string) {

  // 更可靠的命令，专门提取视频第一帧作为封面
  const commands = [
    "ffmpeg",
    "-y",                  // 覆盖输出文件（如果存在）
    "-i", inputPath,       // 输入文件
    "-ss", "00:00:00",     // 定位到开始位置
    "-vframes", "1",       // 只提取1帧
    "-q:v", "2",           // 高质量JPEG（1-31，2是最高质量）
    "-f", "image2",        // 强制输出为图像格式
    outputPath
  ];
  FFmpeg.execute(commands, {
    logCallback: (logLevel: number, logMessage: string) => {
      console.info(`[FFmpegX LOG] [${logLevel}]${logMessage}`)
    },
    progressCallback: (message: string) => {
      console.info(`[FFmpegX progress]${JSON.stringify(FFProgressMessageParser.parse(message))}`)
    },
  })
    .then(() => {

    })
    .catch((error: Error) => {
      console.error(`FFmpegX execution failed with error: ${error.message}`);
    });
}

/**
 * 从音乐文件中提取歌词内容
 * @param inputPath 音乐文件路径
 * @returns Promise<string> 直接返回歌词内容，若无歌词则返回空字符串
 */
async function extractLyricsContent(inputPath: string): Promise<string> {
  return new Promise(async (resolve, reject) => {
    try {
      // 1. 使用ffprobe获取元数据
      const commands = [
        'ffprobe',
        '-v', 'quiet',
        '-print_format', 'json',
        '-show_format',
        inputPath
      ];

      let outputJson = '';
      await FFmpeg.execute(commands,  {
        outputCallback: (message: string) => outputJson += message,
      });

      // 2. 解析歌词标签
      const metadata:FFprobeMetadata = JSON.parse(outputJson);
      const tags = metadata.format?.tags  || {};

      // 3. 从常见标签中查找歌词（优先级顺序）
      const lyricContent =
        tags.LYRICS ||    // 标准标签
        tags.lyrics  ||    // 小写变体
        tags.USLT ||      // ID3v2标签
        tags.UNSYNCEDLYRICS ||
          '';

      resolve(lyricContent.trim());

    } catch (error) {
      reject(`解析失败: ${error instanceof Error ? error.message  : String(error)}`);
    }
  });
}


/**
 * 解析音乐文件元数据（包含歌词和其他关键字段）
 * @param inputPath 文件路径
 * @returns Promise<VideoItem> 包含完整元数据的对象
 */
async function parseAudioMetadata(inputPath: string): Promise<VideoItem> {
  return new Promise(async (resolve, reject) => {
    inputPath = FileUtil.getFilePath(inputPath)
    try {
      // 1. 执行FFprobe命令
      const commands: string[] = [
        'ffprobe',
        '-v', 'quiet',
        '-print_format', 'json',
        '-show_format',
        '-show_streams',
        inputPath
      ];

      let outputJson = '';
      await FFmpeg.execute(commands,  {
        outputCallback: (message: string) => outputJson += message,
      });

      // 2. 解析元数据
      const metadata = JSON.parse(outputJson)  as FFprobeMetadata;
      const format:FFprobeFormat = metadata.format  ;
      const tags = format.tags||{} ;
      // 3. 构建VideoItem基础信息
      const videoItem = new VideoItem(
        tags.title  || getFileNameWithoutExtension(inputPath),
        inputPath, // id
        inputPath,
        CommonConstants.TYPE_LOCAL,
        0,
        new Date().toISOString() // 使用当前时间作为默认创建时间
      );

      // 4. 设置关键字段
      videoItem.bit_rate  = format.bit_rate  || '';
      videoItem.probe_score  = format.probe_score  || 0;
      videoItem.year  = tags.TYER || tags.date  || '';
      videoItem.lyricContent  =
        tags.LYRICS ??
        tags.lyrics  ??
        tags.USLT ??
        tags.UNSYNCEDLYRICS ??
          '';

      // 5. 设置其他可选字段
      videoItem.artist  = tags.artist  || '';
      videoItem.album  = tags.album  || '';
      videoItem.duration  = format.duration  || '';
      videoItem.nb_streams  = format.nb_streams;
      videoItem.nb_programs  = format.nb_programs;

      resolve(videoItem);

    } catch (error) {
      reject(new Error(`元数据解析失败: ${error instanceof Error ? error.message  : String(error)}`));
    }
  });
}


/**
 * 将比特率（bps）转换为 kbps 并格式化
 * @param bitRate 比特率字符串（如 "5644802"）
 * @param decimalPlaces 保留小数位数（默认0）
 * @returns 格式化后的 kbps 字符串（如 "5644 kbps"）
 */
function formatBitrateToKbps(bitRate: string, decimalPlaces: number = 0): string {
  // 1. 转换为数字
  const bitsPerSecond = parseInt(bitRate);
  if (isNaN(bitsPerSecond) || bitsPerSecond < 0) return "0 kbps";

  // 2. 计算 kbps（1 kbps = 1000 bps）
  const kbps = bitsPerSecond / 1000;

  // 3. 格式化输出
  return `${kbps.toFixed(decimalPlaces)}  kbps`;
}


// 定义音质等级
export enum AudioQuality {
  LQ = "LQ",             // 低音质
  HQ = "HQ",             // 高音质
  SQ = "SQ",             // 无损
  HIRES = "Hi-Res",      // 高解析度
  HR = "HR"       // 高解析度
}

// 明确定义支持的音频格式类型
interface SupportedFormats {
  LOSSY: Set<string>;
  LOSSLESS: Set<string>;
}

// 声明并初始化支持的音频格式（符合类型定义）
const SUPPORTED_FORMATS: SupportedFormats = {
  LOSSY: new Set(['mp3', 'aac', 'ogg', 'opus', 'wma']),
  LOSSLESS: new Set(['flac', 'alac', 'ape', 'wav', 'aiff', 'dsf','aif'])
};

/**
 * 根据音频参数判断音质等级
 * @param format 编码格式（字符串，不区分大小写，如"MP3"或"flac"）
 * @param bitrate 比特率（单位：bps，如320kbps需传入320000）
 * @param sampleRate 采样率（单位：Hz，如44.1kHz需传入44100）
 * @param bitDepth 位深（单位：bit，默认16bit，Hi-Res需≥24bit）
 * @returns AudioQuality 音质等级
 */
function determineAudioQuality(
  format: string,
  bitrate: number,
  sampleRate: number,
): AudioQuality {
  // 统一转为小写便于比较
  const normalizedFormat = format.toLowerCase();

  // --------------- 第一步：判断是否无损/Hi-Res ---------------
  const isLossless = SUPPORTED_FORMATS.LOSSLESS.has(normalizedFormat);
  if (isLossless) {
    // Hi-Res标准：采样率≥96kHz且位深≥24bit
    if (sampleRate >= 48000 ) {
      return AudioQuality.HIRES;
    }
    // CD级无损标准：采样率≥44.1kHz且位深≥16bit
    if (sampleRate >= 44100) {
      return AudioQuality.SQ;
    }
  }

  // --------------- 第二步：有损音质判断 ---------------
  // 高音质标准：比特率≥256kbps且采样率≥44.1kHz
  if (bitrate >= 256000 && sampleRate >= 44100) {
    return AudioQuality.HQ;
  }

  // 其余情况为低音质
  else {
    return AudioQuality.LQ;
  }
}

function getFileFormatByPath(filePath: string): string {
  // 检查文件路径是否有效
  if (!filePath || filePath.length  === 0) {
    console.error(' 文件路径不能为空');
    return '';
  }

  // 获取最后一个点号的位置
  const lastDotIndex = filePath.lastIndexOf('.');

  // 如果没有点号或者点号在最后一位，返回空字符串
  if (lastDotIndex === -1 || lastDotIndex === filePath.length  - 1) {
    return '';
  }

  // 返回点号后的部分（转换为小写）
  return filePath.substring(lastDotIndex  + 1).toLowerCase();
}

// 检查乱码的简单方法
function hasGarbledText(tags: FFMpegTags): boolean {
  if (!tags) return false;
  const text = [tags.title, tags.artist,  tags.album].join("");

  return (
    /[À-ÿµØÇò]/.test(text) ||        // 拉丁乱码
    /[\uFFFD�]/.test(text) ||         // Unicode替换字符
    /[�□▪▫▢▣▤▥▦▧▨▩▪▫◊○◌◍◎●◐◑◒◓◔◕◖◗◘◙◚◛◜◝◞◟◠◡◢◣◤◥◦◧◨◩◪◫◬◭◮◯]/.test(text) || // 几何图形
    /[\uD800-\uDFFF]/.test(text)     // 无效的UTF-16代理对
  );
}



/**
 * 提取华为接口的媒体文件元数据
 * @param filePath 文件路径（如：/data/storage/el1/base/test.mp3 ）
 * @returns Promise<FFMpegTags> 包含专辑、艺术家、标题的元数据对象
 */
export async function extractHwMediaMetadata(filePath: string): Promise<FFMpegTags> {
  const tags: FFMpegTags = {};

  if (!canIUse("SystemCapability.Multimedia.Media.AVMetadataExtractor")) {
    console.warn("Metadata  extraction not supported on this device");
    return tags;
  }

  try {
    const avMetadataExtractor: media.AVMetadataExtractor = await media.createAVMetadataExtractor();
    const fd = await fs.open(filePath,  fs.OpenMode.READ_ONLY);

    // 设置文件描述符并提取元数据
    avMetadataExtractor.fdSrc  = fd;
    const metadata = await avMetadataExtractor.fetchMetadata();

    // 映射标准FFMpeg标签
    if (metadata) {
      tags.album  = metadata.album  ?? undefined;
      tags.artist  = metadata.artist  ?? metadata.author  ?? undefined; // 兼容不同元数据字段
      tags.title  = metadata.title  ?? undefined;
    }

    // 关闭文件描述符
    await fs.close(fd);
    return tags;
  } catch (error) {
    const err = error as BusinessError;
    console.error(`Metadata  extraction failed: ${err.code},  ${err.message}`);

    return tags;
  }

  return tags;
}