subject-two/entry/src/main/ets/pages/Index/utils.ets

import common from "@ohos.app.ability.common";
import FileUtil from "../../common/utils/File";
import { GlobalConfig } from "../../config";
import Prompt from "@system.prompt";
import { CarConfigurationParamsType, ObtainCarExamInfoParams } from "../../model";
import dayTs from "../../utils/Date";
import { obtainCarExamInfo } from "../../api";
import abilityAccessCtrl, { Permissions } from '@ohos.abilityAccessCtrl';
import { BusinessError } from "@ohos.base";

//获取设备信息
export async function GetDeviceInfo(context: common.UIAbilityContext): Promise<string> {
  return new Promise(async (resolve, reject) => {
    const fileUtil = new FileUtil(context)
    const data = await fileUtil.readFile(GlobalConfig.comoonfileWriteAddress + '/config/deviceNo.txt');
    if (data === '' || data === undefined) {
      Prompt.showToast({
        message: "请先进行设备注册!",
        duration: 3000
      })
      AppStorage.setOrCreate('type', 1)
      AppStorage.setOrCreate('title', '请先进行设备注册')
      resolve("")
    } else {
      const fileData: CarConfigurationParamsType = JSON.parse(data)
      AppStorage.setOrCreate('deviceNo', fileData.deviceName)
      resolve(fileData.deviceName)
    }
  })
}

export async function GetCarInfo() {
  let date = new Date();
  let params: ObtainCarExamInfoParams = {
    time: dayTs(date).format("YYYY-MM-DD HH:mm:ss"),
    deviceNo: AppStorage.get('deviceNo')
  };
  // TODO 待完善
  let res: ESObject = await obtainCarExamInfo(params)
  if (res.obtainCarExamInfoRsp.body) {
    const carInfo: ESObject = res?.obtainCarExamInfoRsp?.body
    carInfo.plateNo = decodeURIComponent(carInfo.plateNo)
    AppStorage.setOrCreate('carInfo', carInfo)
  }
}

export async function UseAuth(context: common.UIAbilityContext): Promise<boolean> {
  return new Promise((resolve, reject) => {
    const permissions: Array<Permissions> =
      ["ohos.permission.SET_TIME", "ohos.permission.READ_IMAGEVIDEO", "ohos.permission.DISTRIBUTED_DATASYNC",
        'ohos.permission.CONNECTIVITY_INTERNAL', 'ohos.permission.CAMERA', 'ohos.permission.READ_MEDIA',
        'ohos.permission.WRITE_MEDIA', 'ohos.permission.FILE_ACCESS_MANAGER'];
    abilityAccessCtrl.createAtManager().requestPermissionsFromUser(context, permissions).then(res => {
      let grantStatus: Array<number> = res.authResults;
      let length: number = grantStatus.length;
      for (let i = 0; i < length; i++) {
        if (grantStatus[i] === 0) {
          // 用户授权，可以继续访问目标操作
          resolve(true)
        } else {
          reject(false)
          // 用户拒绝授权，提示用户必须授权才能访问当前页面的功能，并引导用户到系统设置中打开相应的权限
          return;
        }
      }
    }).catch((err: BusinessError) => {
      console.log("获取权限失败", JSON.stringify(err))
      reject(false)
    })
  })
}