support-center_snippet-9.html.erb

<% if current_user %>
  <% if current_admin_user.present? && current_admin_user != current_user %>
    <h1><%= current_admin_user.email %> is logged in as <%= current_user.email %>.</h1>
  <% else %>
    <h1><%= current_user.email %> is logged in.</h1>
  <% end %>

  <ul>
    <li><%= link_to 'Admin', admin_root_path %></li>
    <li><%= link_to 'Log out', auth_logout_path, method: :post %></li>
  </ul>
<% else %>
  <h1>None user is authenticated. <%= link_to 'Log in', authentication_path %></h1>
<% end %>