Add user roles system

app/Http/Middleware/IsAdmin.php

@@ -1,28 +1,14 @@
 <?php namespace app\Http\Middleware;
 
+use App\Enums\UserRole;
+
 use Closure;
-use Illuminate\Contracts\Auth\Guard;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Auth;
+use Symfony\Component\HttpFoundation\Response;
 
 class IsAdmin {
 
-    /**
-     * The Guard implementation.
-     *
-     * @var Guard
-     */
-    protected $auth;
-
-    /**
-     * Create a new filter instance.
-     *
-     * @param  Guard  $auth
-     * @return void
-     */
-    public function __construct(Guard $auth)
-    {
-        $this->auth = $auth;
-    }
-
     /**
      * Handle an incoming request.
      *
@@ -30,15 +16,14 @@ class IsAdmin {
      * @param  \Closure  $next
      * @return mixed
      */
-    public function handle($request, Closure $next)
+    public function handle(Request $request, Closure $next): Response
     {
-        if( ! $this->auth->user()->is_admin)
+        if(Auth::check() && Auth::user()->hasRole(UserRole::ADMINISTRATOR))
         {
-            session()->flash('error_msg','This resource is restricted to Administrators!');
-            return redirect()->route('home.index');
+            return $next($request);
         }
 
-        return $next($request);
+        session()->flash('error_msg','This resource is restricted to Administrators!');
+        return redirect()->route('home.index');        
     }
-
 }