import huks from '@ohos.security.huks';
import promptAction from '@ohos.promptAction';
import hilog from '@ohos.hilog'

let alias = "alias";

async function checkExist(keyAlias) {
  let emptyOptions = {
    properties:[]
  }
  await huks.isKeyItemExistV11(keyAlias, emptyOptions).then((data) => {
    promptAction.showToast({
      message: "别名为: " + keyAlias +"的密钥查询结果是：" + data,
      duration: 500,
    })
  }).catch((err)=>{
    promptAction.showToast({
      message: "密钥查询失败，错误码是： " + err.code + " 错误码信息： " + err.message,
      duration: 6500,
    })
  })
}


async function checkOldExist(keyAlias) {
  let emptyOptions = {
    properties:[]
  }
  await huks.isKeyItemExist(keyAlias, emptyOptions).then((data) => {
    promptAction.showToast({
      message: "别名为: " + keyAlias +"的密钥查询结果是：" + data,
      duration: 500,
    })
  }).catch((err)=>{
    promptAction.showToast({
      message: "密钥查询失败，错误码是： " + err.code + " 错误码信息： " + err.message,
      duration: 6500,
    })
  })
}

function GetAesGeneratePropertiesPwdSetProperties() {
  var properties = new Array();
  var index = 0;
  properties[index++] = {
    tag: huks.HuksTag.HUKS_TAG_ALGORITHM,
    value: huks.HuksKeyAlg.HUKS_ALG_AES
  };
  properties[index++] = {
    tag: huks.HuksTag.HUKS_TAG_KEY_SIZE,
    value: huks.HuksKeySize.HUKS_AES_KEY_SIZE_128
  };
  properties[index++] = {
    tag: huks.HuksTag.HUKS_TAG_PURPOSE,
    value: huks.HuksKeyPurpose.HUKS_KEY_PURPOSE_ENCRYPT |
    huks.HuksKeyPurpose.HUKS_KEY_PURPOSE_DECRYPT
  }
  return properties;
}

async function GenerateKeyPwdSet(keyAlias) {
  var options = {
    properties: GetAesGeneratePropertiesPwdSetProperties()
  }
  await huks.generateKeyItem(keyAlias, options).then((data) => {
    promptAction.showToast({
      message: "成功生成了一个别名为："+ keyAlias + " 的密钥" ,
      duration: 2500,
    })
  }).catch((err)=>{
    promptAction.showToast({
      message: "密钥生成失败，错误码是： " + err.code + " 错误吗信息： " + err.message,
      duration: 6500,
    })
  })
}

async function DeleteKey(keyAlias) {
  let emptyOptions = {
    properties:[]
  }
  await huks.deleteKeyItem(keyAlias, emptyOptions).then((data) => {
    promptAction.showToast({
      message: "别名为: "+ keyAlias +" 密钥删除成功！",
      duration: 6500,
    })
  }).catch((err)=>{
    promptAction.showToast({
      message: "密钥删除失败，错误码是： " + err.code + " 错误吗信息： " + err.message,
      duration: 6500,
    })
  })
}

@Entry
@Component
struct Index {
  @State message: string = 'Hello World'

  build() {
    Column() {
      Row() {
        Column() {
          Text(this.message)
            .fontSize(50)
            .fontWeight(FontWeight.Bold)
        }
        .width('100%')
      }

      Row() {
        Button({ type: ButtonType.Normal, stateEffect: true }) {
          Text('checkExist')
            .fontColor(Color.White)
            .fontSize(20)
        }
        .borderRadius(8)
        .width('45%')
        .height('5%')
        .backgroundColor(0x317bff)
        .onClick(() => {
          checkExist(alias)
        })
        .margin(10)

        Button({ type: ButtonType.Normal, stateEffect: true }) {
          Text('GenerateKeyPwdSet')
            .fontColor(Color.White)
            .fontSize(20)
        }
        .borderRadius(8)
        .width('45%')
        .height('5%')
        .backgroundColor(0x317aff)
        .onClick(() => {
          GenerateKeyPwdSet(alias)
        })
        .margin(10)
      }

      Row() {
        Button({ type: ButtonType.Normal, stateEffect: true }) {
          Text('DeleteKey')
            .fontColor(Color.White)
            .fontSize(20)
        }
        .borderRadius(8)
        .width('45%')
        .height('5%')
        .backgroundColor(0x317bff)
        .onClick(() => {
          DeleteKey(alias)
        })
        .margin(10)

        Button({ type: ButtonType.Normal, stateEffect: true }) {
          Text('checkOldExist')
            .fontColor(Color.White)
            .fontSize(20)
        }
        .borderRadius(8)
        .width('45%')
        .height('5%')
        .backgroundColor(0x317bff)
        .onClick(() => {
          checkOldExist(alias)
        })
        .margin(10)

      }
    }
  }
}