///
/// Copyright © 2016-2020 The Thingsboard Authors
///
/// Licensed under the Apache License, Version 2.0 (the "License");
/// you may not use this file except in compliance with 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 { AuthPayload, AuthState } from './auth.models';
import { AuthActions, AuthActionTypes } from './auth.actions';

const emptyUserAuthState: AuthPayload = {
  authUser: null,
  userDetails: null,
  userTokenAccessEnabled: false,
  forceFullscreen: false,
  allowedDashboardIds: []
};

export const initialState: AuthState = {
  isAuthenticated: false,
  isUserLoaded: false,
  lastPublicDashboardId: null,
  ...emptyUserAuthState
};

export function authReducer(
  state: AuthState = initialState,
  action: AuthActions
): AuthState {
  switch (action.type) {
    case AuthActionTypes.AUTHENTICATED:
      return { ...state, isAuthenticated: true, ...action.payload };

    case AuthActionTypes.UNAUTHENTICATED:
      return { ...state, isAuthenticated: false, ...emptyUserAuthState };

    case AuthActionTypes.LOAD_USER:
      return { ...state, ...action.payload, isAuthenticated: action.payload.isUserLoaded ? state.isAuthenticated : false,
        ...action.payload.isUserLoaded ? {} : emptyUserAuthState };

    case AuthActionTypes.UPDATE_USER_DETAILS:
      return { ...state, ...action.payload};

    case AuthActionTypes.UPDATE_LAST_PUBLIC_DASHBOARD_ID:
      return { ...state, ...action.payload};

    default:
      return state;
  }
}