Merged battery repo

website/src/app/guards/guest.guard.ts

@@ -0,0 +1,17 @@
+import {CanActivate, Router} from '@angular/router';
+import {Injectable} from '@angular/core';
+import {Observable} from 'rxjs';
+import {filter, map, tap} from 'rxjs/operators';
+import {AuthService} from '../services/auth.service';
+
+@Injectable({
+    providedIn: 'root'
+})
+export class GuestGuard implements CanActivate {
+
+    constructor(private auth: AuthService, private router: Router) {}
+
+    canActivate(): Observable<boolean> {
+        return this.auth.user.pipe(filter((user: any) => user != null), map(user => user && user.isAnonymous), tap(auth => auth ? this.router.navigate(['/']) : null));
+    }
+}