constructor(private adalService: AdalService, private bookingService: BookingService) {
     
     this.adalService.getUser().subscribe(
         res => {
             this.name = res.profile.name.split(' ')[0];
             this.bookingService.setUser(res);
         },
         err => {
             console.log(err);
         }
     );
 }

 constructor(private bookingService: BookingService, private adalService: AdalService) {
     this.BookingReady = true;
     this.PurchaseReady = false;
     this.adalService.getUser().subscribe(
         res => {
             this.name = res.profile.name;
         },
         err => {
             console.log(err);
         }
     );
 }

 constructor(private adalService: AdalService, private authService: AuthService) {
     //adal service init
     this.adalService.init(this.authService.adalConfig);
     this.adalService.handleWindowCallback();
     this.adalService.getUser();
 }

 canActivate() {
     if (this.adalService.userInfo.isAuthenticated) {
         return true;
     } else {
         this.adalService.login();
         return false;
     }
 }

 login() {
     this.adalService.login();
 }

 logout() {
     this.adalService.logOut();
 }