import { BusinessError } from '@kit.BasicServicesKit';
import { customScan, scanBarcode, scanCore } from '@kit.ScanKit';
import { permissionController } from './PermissionControl';
import { YTLog } from '../../../../Index';

interface ScanCodeUtilInterface {
  viewControl: customScan.ViewControl
  scanOptions?: scanBarcode.ScanOptions
}

export class ScanCodeUtil {
  private viewControl: customScan.ViewControl
  private scanOptions: scanBarcode.ScanOptions
  private isAuthorization: boolean = false

  constructor(options: ScanCodeUtilInterface) {
    this.viewControl = options.viewControl
    if (options.scanOptions) {
      this.scanOptions = options.scanOptions
    } else {
      this.scanOptions = {
        scanTypes: [scanCore.ScanType.ALL],
        enableMultiMode: true,
        enableAlbum: true
      }
    }


    this.initCustomScan()

  }

  initCustomScan() {
    try {
      if (permissionController.checkPermission('ohos.permission.CAMERA')) {
        customScan.init(this.scanOptions);
        this.isAuthorization = true
      } else {
        permissionController.secondAskPermission((isAuthorization) => {
          this.isAuthorization = isAuthorization
        })
      }

    } catch (error) {
      YTLog.error(error);
    }
  }

  // customScan.ViewControl = {
  //       width: this.cameraWidth,
  //       height: this.cameraHeight,
  //       surfaceId: surfaceId
  //     };
  startCustomScan(result: (res?: Array<scanBarcode.ScanResult>, err?: Error) => void): boolean {
    if (this.isAuthorization) {
      try {
        customScan.start(this.viewControl).then((scanResult: Array<scanBarcode.ScanResult>) => {
          YTLog.info(scanResult)
          result(scanResult)
        }).catch((error: BusinessError) => {
          result(undefined, error)
          YTLog.error(`Code: ${error.code}, message: ${error.message}`)
        })
      } catch (error) {
        result(undefined, error)
        YTLog.error(`Code: ${error.code}, message: ${error.message}`)
      }

    } else {
      result(undefined, new Error('用户未授权相机权限'))
      YTLog.error('用户未授权相机权限')
    }
    return this.isAuthorization
  }


  //在不需要时需要及时释放相机资源
  stopAndReleaseCustomScan() {
    customScan.stop()
      .then(() => {
        customScan.release()
      })

  }
}