// myHandler为入口方法名称
// event 调用方法传递的事件对象，JSON格式
// context 函数运行时上下文对象，封装了日志接口、回调接口、环境变量env对象等
// callback 事件处理结果
// logger 记录日志
let myHandler = async function (event, context, callback, logger) {

  // do something here
  let res = new context.HTTPResponse({
    "faas-content-type": "json"
  }, "application/json", "200");
  var body = {
    code: 0,
    message: "",
    data: null
  }
  var _body = JSON.parse(event.body);
  var username = _body.username;
  var password = _body.password;
  if (username !== 'admin') {
    body.code = 10001;
    body.message = "账号不存在！";
  } else if (username === 'admin' && password !== '123456') {
    body.code = 10002;
    body.message = "密码错误！";
  } else {
    body.code = 200;
    body.message = "登录成功！";
    body.data = {
      username: username
    }
  }
  res.body = body;
  callback(res);
};

export { myHandler };

// services/ArgAlgFunc.ts
import agconnect from '@hw-agconnect/api-ohos';
import "@hw-agconnect/function-ohos";

import { getAGConnect } from './AgcConfig';

export function login(context, reqBody: any): Promise<any> {
    return new Promise((resolve, reject) => {
        getAGConnect(context);
        let functionResult;
        let functionCallable = agconnect.function().wrap('argalg-$latest');
        functionCallable.call(reqBody).then((ret: any) => {
            functionResult = ret.getValue();
            resolve(functionResult);
        }).catch((error: any) => {
            reject(error);
        })
    })
}

import { login } from '../services/ArgAlgFunc';
import prompt from '@system.prompt';
@Entry
@Component
struct ArgAlg {
  @State result: string = "";
  @State username: string = "";
  @State password: string = "";

  getFunctionResult = () => {
    let reqBody = {
      "username": this.username,
      "password": this.password
    }
    login(getContext(this), reqBody).then((ret) => {
      this.result = JSON.stringify(ret)
      if (ret.body.code === 200) {
        prompt.showToast({
          message: `登录成功，当前账号为：${ret.body.data.username}`,
          duration: 5000
        })
      } else {
        prompt.showToast({
          message: `登录失败，原因为：${ret.body.message}`,
          duration: 5000
        })
      }
    }).catch((err) => {
      this.result = JSON.stringify(err);
      prompt.showToast({
        message: `出现异常，原因为：${err}`,
        duration: 5000
      })
    })
  }

  build() {
    Column() {
      TextInput({ placeholder: '请输入用户名'})
        .fontSize(16).placeholderFont({ size: 16 })
        .onChange((value: string) => {
          this.username = value;
        })
      TextInput({ placeholder: '请输入密码'})
        .fontSize(16).placeholderFont({ size: 16 })
        .onChange((value: string) => {
          this.password = value;
        })
      Button('登录')
        .width(200).height(54)
        .fontSize(16)
        .onClick(() => {
          this.getFunctionResult();
        })

      Text(`Info: ${this.result}`).fontSize(16)
    }
    .width('100%').height('100%')
    .padding({ top: 16 })
  }
}