/*
 * Copyright 2018 Medozs and/or its affiliates
 * and other contributors as indicated by the @author tags.
 *
 * 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 { Injectable } from "@angular/core";
import { CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot, Router } from "@angular/router";
import { Observable } from "rxjs/Observable";
import { KeycloakService } from "./keycloak.service";

/**
 * Guard which checked if the user is authenticated
 *
 * @export
 * @class AuthGuard
 * @implements {CanActivate}
 */
@Injectable()
export class AuthGuard implements CanActivate {
  constructor(
    private _router: Router,
    private _keycloakService: KeycloakService
  ) { }
  canActivate(
    next: ActivatedRouteSnapshot,
    state: RouterStateSnapshot): Observable<boolean> | Promise<boolean> | boolean {
    return this._keycloakService.authenticated();
  }
}