TTMusic/entry/src/main/ets/pages/ScanFilePage.ets

import TitleBar from '../view/TitleBar'
import {  router, window } from '@kit.ArkUI'
import { AppUtil, DeviceUtil, DisplayUtil, FileUtil, LogUtil, PreferencesUtil, ToastUtil } from '@pura/harmony-utils'
import lottie from '@ohos/lottie'
import { AnimationItem } from '@ohos/lottie'
import { MessageEvents, taskpool, worker } from '@kit.ArkTS'
import { fileUri, picker } from '@kit.CoreFileKit'
import { LocalMusic } from '../view/LocalMusic'
import { Utility } from '../common/util/Utility'
import MediaTable from '../common/util/MediaTable'
import { VideoItem } from '../viewmodel/VideoItem'
import Logger from '../common/util/Logger'
import { CommonConstants } from '../common/constants/CommonConstants'
import { emitter } from '@kit.BasicServicesKit'
import { BreakpointTypeEnum } from '../common/util/BreakpointSystem'
import { resourceManager } from '@kit.LocalizationKit'
import { ConfigurationConstant } from '@kit.AbilityKit'
import { DialogHelper } from '@pura/harmony-dialog'


@Preview
@Entry
@Component
export struct ScanFilePage{
  @State rootPath:string = '' //音频根目录
  @State lockPath:string = ''

  @State strText:string = ''
  @State isStart:boolean = false
  @State isStartCover:boolean = false
  @State appName:string = ''
  //lottie动画构建渲染上下文
  private mainRenderingSettings: RenderingContextSettings = new RenderingContextSettings(true)
  private path:string = "common/lottie/leida.json"
  private successpath:string = "common/lottie/success2.json"
  private mainCanvasRenderingContext: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.mainRenderingSettings)
  private animateItem: AnimationItem | null = null;
  /** 当前断点类型（如大屏/小屏） */
  @StorageProp('currentBreakpoint') currentBreakpoint: string = BreakpointTypeEnum.MD;
  @StorageProp('themeColor') themeColor: string = '#FF4081';
  @State isDarkMode: boolean = false
  @StorageProp('currentColorMode') @Watch('onColorModeChange') currentMode: number =
    ConfigurationConstant.ColorMode.COLOR_MODE_LIGHT;
  private windowClass: window.Window = globalThis.windowClass
  initLottie(lpath:string,isLoop:boolean){
    lottie.destroy(); //加载动画前先销毁之前加载的动画
    this.animateItem = lottie.loadAnimation({
      container: this.mainCanvasRenderingContext,  // 渲染上下文
      renderer: 'canvas',                          // 渲染方式
      loop: isLoop,                                  // 是否循环播放,默认true
      autoplay: true,                              // 是否自动播放，默认true
      name: '2024',                                // 动画名称
      contentMode: 'Contain',                      // 填充的模式
      frameRate: 30,                               //设置animator的刷帧率为30
      imagePath: 'lottie/images/',                 // 加载读取指定路径下的图片资源
      path: lpath,                             // json路径
      // initialSegment: [0,70]
    })
    lottie.setSpeed(0.7)

  }
  onPageShow() {
    this.initLottie(this.path,true)
    setTimeout(()=>{
      lottie.pause()
    },88)

  }
  // 组件生命周期
  async aboutToAppear() {
    Utility.getAppName(getContext(this)).then((appName:string)=>{
      this.appName = appName
    })
    let themeColor = PreferencesUtil.getStringSync('THEME_COLOR', '#FF4081');
    AppStorage.setOrCreate('themeColor', themeColor);
    this.themeColor = themeColor;
    this.isDarkMode = this.currentMode === ConfigurationConstant.ColorMode.COLOR_MODE_DARK
    const documentViewPicker = new picker.DocumentViewPicker()
    let documentSaveResult = await documentViewPicker.save({ pickerMode: picker.DocumentPickerMode.DOWNLOAD })
    this.rootPath = new fileUri.FileUri(documentSaveResult[0]).path

    this.lockPath =  this.rootPath +'/'+ LocalMusic.STR_LOCK_VIDEO
    LogUtil.info('onecold 文件扫描 aboutToAppear')

  }
  onColorModeChange() {
    this.isDarkMode = this.currentMode === ConfigurationConstant.ColorMode.COLOR_MODE_DARK
  }

  endScan(isOnekey:boolean){
    const eventData: emitter.EventData = {};
    emitter.emit({ eventId: 101 }, eventData); // 发送视频打开广播事件
    this.watchStatus(false)
    ToastUtil.showToast('扫描文件入库成功！')
    if(isOnekey){
      this.isStartCover = false
    }else{
      this.isStart = false

    }
    this.strText = ''
    //结束动画
    lottie.pause()
    lottie.stop()
    this.initLottie(this.successpath,false)
    lottie.play()

  }

  //扫描过程中屏幕要保存常亮
  watchStatus(isKeep:boolean) {
      this.windowClass.setWindowKeepScreenOn(isKeep);
  }
  // 组件生命周期
  aboutToDisappear() {
    lottie.destroy();


  }


  // @State titleBarModel: TitleBar.Model = new TitleBar.Model()
  //   .setTitleTextStyle(FontStyle.Normal)
  //   .setTitleBarStyle(TitleBar.BarStyle.TRANSPARENT)
  //   .setLeftIcon($r('app.media.left_back_white'))
  //   .setTitleName("文件扫描")
  //   .setTitleFontColor(Color.White)
  //   .setTitleBarBackground(this.themeColor)
  //   .setLeftTitleBackground(this.themeColor)
  //   .setTitleBarBottomLineColor(this.themeColor)
  //   .setOnLeftClickListener(() => {
  //     router.back()
  //
  //   })
  initState(isOnekey:boolean){

    this.initLottie(this.path,true)
    if(isOnekey){
      this.isStartCover = true
    }else{
      this.isStart = true
    }
    this.strText = Utility.resourceToString(getContext(this),$r('app.string.scaning'))
    lottie.play()
  }

  doOptimize(isOnekey:boolean){
    this.watchStatus(true)
    this.initState(isOnekey)
    const task = new taskpool.Task(scanDirectoryTask, getContext(this), this.rootPath,
      this.lockPath,PreferencesUtil.getStringSync('COVER_API',''));
    taskpool.execute(task, taskpool.Priority.HIGH).then(()=>{
      this.endScan(isOnekey)
    }).catch((e:object)=>{
      console.info("task1 catch e: " + e);
    })

  }

  //是不是手机横屏
  isPhoneLan() {
    if (DeviceUtil.getDeviceType() === resourceManager.DeviceType.DEVICE_TYPE_PHONE
      && this.currentBreakpoint !== BreakpointTypeEnum.SM) {
      if (DisplayUtil.getFoldStatus() === 0 ) {
        return true
      }
    }

    return false
  }



  build() {
    Column() {
      // 顶部安全区和自定义标题栏
      Column() {
        // 顶部安全区
        Blank()
          .height(this.isPhoneLan() ? 0 : px2vp(AppUtil.getStatusBarHeight()))
          .backgroundColor(this.isDarkMode?$r('app.color.title_bar_bg'):this.themeColor)
          .expandSafeArea([SafeAreaType.SYSTEM], [SafeAreaEdge.TOP])
        // 自定义标题栏（Stack实现绝对居中）
        Stack() {
          // 居中标题
          Text('文件扫描')
            .fontSize(18)
            .fontColor(Color.White)
            .align(Alignment.Center)
          // 左右按钮
          Row() {
            Image($r('app.media.left_back_white'))
              .width(28)
              .height(28)
              .margin({ left: 12, right: 8 })
              .onClick(() => {
                router.back();
              })
            Blank().flexGrow(1)
            Blank().width(32)
          }
          .height(48)
          .width('100%')
          .alignItems(VerticalAlign.Center)
        }
        .height(48)
        .width('100%')
        .backgroundColor(this.isDarkMode?$r('app.color.title_bar_bg'):this.themeColor)
      }
      // Column(){
      //   Line().width('100%').height('100%')
      // }
      // .height(this.isPhoneLan()?0:px2vp(AppUtil.getStatusBarHeight()))
      // .backgroundColor(this.themeColor)
      // .expandSafeArea([SafeAreaType.SYSTEM], [SafeAreaEdge.TOP])
      // TitleBar({ model: $titleBarModel })
      Scroll(){
        Column() {

          Stack(){
            Image($r('app.media.file_search'))
              .width(48)
              .height(48)
              .fillColor(this.themeColor)
              .alignSelf(ItemAlign.Center)
            //lottie动画
            Canvas(this.mainCanvasRenderingContext)
              .width(160)
              .height(160)
              .onReady(()=>{
                //抗锯齿的设置
                this.mainCanvasRenderingContext.imageSmoothingEnabled = true;
                this.mainCanvasRenderingContext.imageSmoothingQuality = 'medium'
              })
          }


          // Text(this.strText)
          //   .margin({ right: 20,top:20,bottom:20 })
          //   .fontSize(16)
          //   .fontColor(Color.Black)
          //   .fontWeight(480)


          Column() {
            Row() {


              Image($r('app.media.selected'))
                .width(16)
                .height(16)
                .fillColor(this.themeColor)
                .margin({ left:10})
                .alignSelf(ItemAlign.Center)
              Text(Utility.resourceToString(getContext(this),$r('app.string.file_scan_tip_one'))
                +`${this.appName} `+
              Utility.resourceToString(getContext(this),$r('app.string.file_scan_tip_one_1')))
                .margin({ left: 10, right: 20 })
                .fontSize(15)
                .fontColor(Color.Gray)
                .fontWeight(480)
                .layoutWeight(1)
            }
            .width('100%')
            .margin({ left:25,right: 25 ,top:20 })


            Row() {


              Image($r('app.media.selected'))
                .width(16)
                .height(16)
                .fillColor(this.themeColor)
                .margin({ left:10})
                .alignSelf(ItemAlign.Center)
              Text($r('app.string.file_scan_tip_two'))
                .margin({ left: 10, right: 20 })
                .fontSize(15)
                .fontColor(Color.Gray)
                .fontWeight(480)
                .layoutWeight(1)

            }
            .width('100%')
            .margin({ left:25,right: 25 ,top:20,bottom:20 })

          }
          .backgroundColor($r('app.color.index_background'))
          .margin({ left:25,right: 25,top:20,bottom:20  })
          .borderRadius(20)

          Column() {
            Button(this.isStart?'正在扫描':$r('app.string.start_scan'), { type: ButtonType.Capsule, stateEffect: false })

              .width('60%')
              .height(55)
              .margin({ top: 20, bottom: 10 })
              .linearGradient({
                direction: GradientDirection.Right,
                colors: [['#ff37a0fc', 0.0], ['#67e667', 0.5], ['#f5856e', 1.0]]
              })
              .enabled(this.isStart ?false:true)
              .onClick(() => {
                this.doOptimize(false)

              })
              .alignSelf(ItemAlign.Center)

            Button(this.isStartCover?'正在扫描':$r('app.string.onekey_cover'), { type: ButtonType.Capsule, stateEffect: false })

              .width('60%')
              .height(55)
              .margin({ top: 10, bottom: 20 })
              .linearGradient({
                direction: GradientDirection.Right,
                colors: [['#ff37a0fc', 0.0], ['#67e667', 0.5], ['#f5856e', 1.0]]
              })
              .enabled(this.isStartCover ?false:true)
              .onClick(() => {
                if(PreferencesUtil.getStringSync('COVER_API','')===''){
                  this.showTipsDialog()
                  return
                }
                this.doOptimize(true)

              })
              .alignSelf(ItemAlign.Center)


          }

        }

        .height('100%')
        .width('100%')
        .align(Alignment.Top)
      }
      .height(1000)

    }
  }

  showTipsDialog() {
    DialogHelper.showCustomContentDialog({
      dialogId: 'tips',
      title: "友情提示",
      autoCancel: false, //点击遮障层时，不关闭弹窗
      backCancel: true, //点击返回键，不关闭弹窗
      contentBuilder: () => {
        this.customTipsBuilder("请到设置界面配置封面服务器地址！")
      },
      buttons: [],
    })
  }

  @Builder
  customTipsBuilder(content: string) {
    Column() {
      Text(content)
        .fontColor(Color.Gray)
        .fontSize(16)
        .alignSelf(ItemAlign.Start)
        .margin({ bottom: 15 })
        .fontSize(16)

      Row() {
        Button('取消')
          .fontColor(Color.White)
          .backgroundColor($r('app.color.title_bar_bg'))//.linearGradient( { direction: GradientDirection.Right, colors:[['#ff37a0fc',0.0],['#67e667',0.5],['#f5856e',1.0]]})
          .height(50)
          .layoutWeight(1)
          .stateEffect(true)
          .margin({ right: 6 })
          .onClick(() => {
            DialogHelper.closeDialog('tips'); //关闭弹框
          })
        Button('跳转')
          .fontColor(Color.White)//.linearGradient( { direction: GradientDirection.Right, colors:[['#ff37a0fc',0.0],['#67e667',0.5],['#f5856e',1.0]]})
          .layoutWeight(1)
          .height(50)
          .backgroundColor($r('app.color.title_bar_bg'))
          .stateEffect(true)
          .margin({ left: 6 })
          .onClick(() => {
            DialogHelper.closeDialog('tips'); //关闭弹框
            router.pushUrl({
              url: 'pages/SettingPage'
            }, router.RouterMode.Single);
          })
      }

    }
    .width("100%")
    .padding(10)
  }

}



@Concurrent
async function  scanDirectoryTask(context: Context, dirPath: string, lockPath: string,cover_api:string) {
  const stack: string[] = [dirPath];
  const table: MediaTable = new MediaTable(context);
  while (stack.length  > 0) {
    const currentPath = stack.pop()!;
    const files = FileUtil.listFileSync(currentPath);
    await Promise.all(files.map(async  (file) => {
      const fPath = `${currentPath}/${file}`;
      if (fPath === lockPath) return;

      if (FileUtil.isDirectory(fPath))  {
        stack.push(fPath);  // 使用栈结构代替递归
      } else {
        if (fPath.endsWith('.lrc')  || fPath.endsWith('.srt'))  return;

        if (Utility.isMeidaByExtension(fPath))  {
          const mediaItem = await Utility.uriGetMusicAssetsFromFile(
            context, fPath, CommonConstants.TYPE_LOCAL, true
          );
          table.insert(mediaItem,  (id: number) => {

          },cover_api);
        }
      }
    }));
  }
}