Removed use of platform service and created different service for SSR and CSR

src/app/shared/log-in/log-in.component.ts

@@ -9,7 +9,8 @@ import 'rxjs/add/operator/takeWhile';
 import { AuthenticateAction, ResetAuthenticationMessagesAction } from '../../core/auth/auth.actions';
 
 import {
-  getAuthenticationError, getAuthenticationInfo,
+  getAuthenticationError,
+  getAuthenticationInfo,
   isAuthenticated,
   isAuthenticationLoading,
 } from '../../core/auth/selectors';
@@ -18,7 +19,6 @@ import { CoreState } from '../../core/core.reducers';
 import { isNotEmpty } from '../empty.util';
 import { fadeOut } from '../animations/fade';
 import { AuthService } from '../../core/auth/auth.service';
-import { PlatformService } from '../services/platform.service';
 
 /**
  * /users/sign-in
@@ -56,6 +56,12 @@ export class LogInComponent implements OnDestroy, OnInit {
    */
   public hasMessage = false;
 
+  /**
+   * Whether user is authenticated.
+   * @type {Observable<string>}
+   */
+  public isAuthenticated: Observable<boolean>;
+
   /**
    * True if the authentication is loading.
    * @type {boolean}
@@ -83,15 +89,18 @@ export class LogInComponent implements OnDestroy, OnInit {
   constructor(
     private authService: AuthService,
     private formBuilder: FormBuilder,
-    private platform: PlatformService,
     private store: Store<CoreState>
-  ) { }
+  ) {
+  }
 
   /**
    * Lifecycle hook that is called after data-bound properties of a directive are initialized.
    * @method ngOnInit
    */
   public ngOnInit() {
+    // set isAuthenticated
+    this.isAuthenticated = this.store.select(isAuthenticated);
+
     // set formGroup
     this.form = this.formBuilder.group({
       email: ['', Validators.required],
@@ -144,7 +153,7 @@ export class LogInComponent implements OnDestroy, OnInit {
   }
 
   /**
-   * To to the registration page.
+   * To the registration page.
    * @method register
    */
   public register() {