Build menu through Route::group in Laravel 5 - laravel

Question

I have 2 Route::group and each one has a couple of routes. For example:
Route::group(['prefix'=>'/guest', 'middleware'=>'guest'], function()
{
Route::get('login', ['as' => 'Login to the site', 'uses' => 'WelcomeController#login']);
Route::get('register', ['as' => 'Register', 'uses' => 'WelcomeController#register']);
Route::get('restore', ['as' => 'Restore the password', 'uses' => 'WelcomeController#restore']);
});
Route::group(['prefix'=>'/admin', 'middleware'=>'auth', function()
{
Route::get('/dashboard', ['as' => 'Home Page', 'uses' => 'AdminController#users']);
Route::get('/users', ['as' => 'Users', 'uses' => 'AdminController#users']);
});
So, I would like automatically to build a menu using the current prefix of Route::group. If user is authenticated Laravel should display the menu list like this:
<li>Home Page</li>
<li>Users</li>
but if user is just guest, in this case my menu should be like this:
<li>Login to the site</li>
<li>Register</li>
If you look through the second guest menu, you will see that menu for Restoring password was missed. Yes, I would like sometimes do not display some menus.
Basically, I have a 2 questions:
Find the routes which belong to the current Route group and build a
menu.
Don't display any routes in menu, adding some option to them.

Answer 1

Route groups are transient and their only use is to allow the router to populate in bulk the specific attributes (prefixes, namespaces, etc) of the routes that are in them.
When you register a group, the attributes you pass to it are added to the routes that are defined inside the group, then the group is deleted. So the group exists within the router only while the Route::group method is being executed.
All that means that you can't get any group information, in your route closure or controller method in order to get the routes inside.
Since you say that you have 3 types of users, then you should probably have a way to get the user type of the authenticated user, with something like Auth::user()->type (which would return one of these values admin, instructor, student). Also, you should be able to use Auth::guest() to determine if a user is not logged in.
So you can just do the following to handle menu generation (the code below assumes that the $user variable contains the model from Auth::user()):
<ul>
#if (Auth::guest())
<li>Login to the site</li>
<li>Register</li>
#else
#if ($user->type == 'admin')
<li>Home Page</li>
<li>Users</li>
...
#elseif ($user->type == 'instructor')
<li>Home Page</li>
<li>Students</li>
...
#elseif ($user->type == 'student')
<li>Home Page</li>
<li>Lessons</li>
...
#endif
#endif
</ul>

Answer 2

I added "#" in alias for some routes which I want to hide.
Route::group(['prefix'=>'/guest', 'middleware'=>'guest'], function()
{
Route::get('login', ['as' => 'Login to the site', 'uses' => 'WelcomeController#login']);
Route::get('register', ['as' => 'Register', 'uses' => 'WelcomeController#register']);
Route::get('restore', ['as' => 'Restore the password#hide', 'uses' => 'WelcomeController#restore']);
});
Then in view I added this code:
foreach( Route::getRoutes() as $route){
$data = explode('#', $route->getName());
if(Route::getCurrentRoute()->getPrefix() == $route->getPrefix() && #$data[1] == "" ){
echo '<li>'.$data[0].'</li>';
}
}
Now, I successfully displayed all routers of current route::group and hide some routes adding # to the alias. In example it is Restore the password#hide