import { CognitoUserPool, CognitoUser, AuthenticationDetails } from 'amazon-cognito-identity-js';

const options = {
  apiVersion: '2012-08-10',
  region: 'us-east-1',
  UserPoolId : '', // Your user pool id here
  ClientId : '' // Your client id here
}

const userPool = new CognitoUserPool(options);

export default class Authenication {

  static signupUser(username,password){

    return new Promise((resolve)=>{

      userPool.signUp(username, password, null, null,(err, result)=>{
        if (err) {
          resolve(err);
        }
        resolve(result)
      })
    })
  }

  static loginUser(username,password){
    const authenticationData = {
      Username:username,
      Password:password,
    };
    const authenticationDetails = new AuthenticationDetails(authenticationData);

    const userData = {
      Username : username,
      Pool : userPool
    };

    const cognitoUser = new CognitoUser(userData);


    return new Promise((resolve,reject)=>{
      cognitoUser.authenticateUser(authenticationDetails, {
        onSuccess: (result)=> {
          resolve(result)
        },
        onFailure: (err) => {
          reject(err);
        },
      });
    },
  )
  }

  static getIdToken(){

    return new Promise((resolve, reject) =>{
      const users = userPool.getCurrentUser()

      if (!users) {
        resolve('')
      }
      userPool.getCurrentUser().getSession((err, session)=>{
        if (err) {
          reject(err)
        }
        resolve(session.getIdToken().getJwtToken())
      })}
  )
  }

  static getUser = () => userPool.getCurrentUser();


}