/*!
 * Copyright (c) 2015-present, Okta, Inc. and/or its affiliates. All rights reserved.
 * The Okta software accompanied by this notice is provided pursuant to the Apache License, Version 2.0 (the "License.")
 *
 * You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0.
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *
 * See the License for the specific language governing permissions and limitations under the License.
 *
 */

import { OktaAuthHttpInterface } from '../http/types';
import {
  AuthnTransactionFunction,
  AuthnTransaction,
  AuthnTransactionAPI,
  AuthnTransactionState
} from './types';
import { flattenEmbedded } from './util/flattenEmbedded';

export class AuthnTransactionImpl implements AuthnTransaction {
  next?: AuthnTransactionFunction;
  cancel?: AuthnTransactionFunction;
  skip?: AuthnTransactionFunction;
  unlock?: AuthnTransactionFunction;
  changePassword?: AuthnTransactionFunction;
  resetPassword?: AuthnTransactionFunction;
  answer?: AuthnTransactionFunction;
  recovery?: AuthnTransactionFunction;
  verify?: AuthnTransactionFunction;
  resend?: AuthnTransactionFunction;
  activate?: AuthnTransactionFunction;
  poll?: AuthnTransactionFunction;
  prev?: AuthnTransactionFunction;

  data?: AuthnTransactionState;
  stateToken?: string;
  sessionToken?: string;
  status: string;
  user?: Record<string, any>;
  factor?: Record<string, any>;
  factors?: Array<Record<string, any> >;
  policy?: Record<string, any>;
  scopes?: Array<Record<string, any> >;
  target?: Record<string, any>;
  authentication?: Record<string, any>;
  constructor(sdk: OktaAuthHttpInterface, tx: AuthnTransactionAPI, res: AuthnTransactionState | null = null) {
    this.data = undefined;
    this.status = undefined as unknown as string;
    if (res) {
      this.data = res;

      // Parse response from Authn V1
      Object.assign(this, flattenEmbedded(sdk, tx, res, res, {}));
      delete this.stateToken;

      // RECOVERY_CHALLENGE has some responses without _links.
      // Without _links, we emulate cancel to make it intuitive
      // to return to the starting state. We may remove this
      // when OKTA-75434 is resolved
      if (res.status === 'RECOVERY_CHALLENGE' && !res._links) {
        this.cancel = function() {
          return Promise.resolve(tx.createTransaction());
        };
      }
    }
  }
}