import BaseEntityClient from '../../common/clients/BaseEntityClient';
import AuthenticatorClientInterface from './AuthenticatorClientInterface';
import HTTPRequest from '../../Request/entity/HTTPRequest';
import RequestPromise from '../../common/DTO/RequestPromise';
import GrantType from '../enums/GrantType';
import MethodNotImplementedYetException
  from '../../common/exceptions/MethodNotImplementedYetException';

export default class AuthenticatorClient extends BaseEntityClient implements AuthenticatorClientInterface {
  private LOGIN = `${this.getBasepath()}`;
  private REFRESH_TOKEN = `${this.getBasepath()}`;
  
  getBasepath() {
    return '/oauth/token';
  }
  
  login(httpRequest: HTTPRequest): RequestPromise {
    httpRequest.url = this.LOGIN;
    const data = {
      ...httpRequest.data,
      grant_type: GrantType.PASSWORD,
      client_id: '1', // Given by Albert, save into params file.
      client_secret: '2cQRUseGngtHMgRlzyj89FTTj06QdVZ7H4Pn6vD9', // Given by Albert, save into params file.
    };
    
    httpRequest.data = this.getLoginPayload(data);
    
    return super.post(httpRequest);
  }
  
  refreshToken(httpRequest: HTTPRequest): RequestPromise {
    throw new MethodNotImplementedYetException('\'refreshToken\' at client level');
  }
  
  private getLoginPayload(data) {
    return Object.keys(data).map(each => `${each}=${data[each]}`).join('&');
  }
}