Fix current_user usage in management section

In the management section, `current_user` is the user impersonated by
the manager. We were deciding whether to show the admin menu depending
on the privileges of the current user, but this menu should be shown
according to the privileges of the manager who is impersonating the
user.

We're doing a similar (very subtle) change in the login items. We were
rendering the `login_items` partial passing `current_user: user`.
However, inside this method, we were using `user_signed_in`, which
ignored the `current_user` we were passing. The result was always the
same expect in tests where we manually sign in users, but we're changing
it anyway in order to reduce confusion.

app/helpers/users_helper.rb

@@ -35,34 +35,10 @@ module UsersHelper
     end
   end
 
-  def current_administrator?
+  def show_admin_menu?(user)
-    current_user&.administrator?
-  end
-
-  def current_moderator?
-    current_user&.moderator?
-  end
-
-  def current_valuator?
-    current_user&.valuator?
-  end
-
-  def current_manager?
-    current_user&.manager?
-  end
-
-  def current_sdg_manager?
-    current_user&.sdg_manager?
-  end
-
-  def current_poll_officer?
-    current_user&.poll_officer?
-  end
-
-  def show_admin_menu?(user = nil)
     unless namespace == "officing"
-      current_administrator? || current_moderator? || current_valuator? || current_manager? ||
+      user&.administrator? || user&.moderator? || user&.valuator? ||
-        user&.administrator? || current_poll_officer? || current_sdg_manager?
+        (user&.manager? && namespace != "management") || user&.poll_officer? || user&.sdg_manager?
     end
   end
 

app/views/devise/menu/_login_items.html.erb

@@ -1,4 +1,4 @@
-<% if user_signed_in? %>
+<% if current_user %>
   <li>
     <%= layout_menu_link_to t("layouts.header.my_activity_link"),
                               user_path(current_user),

app/views/users/show.html.erb

@@ -17,7 +17,7 @@
       <h2 class="inline-block">
         <%= avatar_image(@user, seed: @user.id, size: 60) %>
         <%= @user.name %>
-        <% if current_administrator? %>
+        <% if current_user&.administrator? %>
           <small><%= @user.email %></small>
         <% end %>
       </h2>

spec/components/layout/admin_header_component_spec.rb

@@ -11,7 +11,6 @@ describe Layout::AdminHeaderComponent do
   context "management section", controller: Management::BaseController do
     it "shows the menu for administrators" do
       create(:administrator, user: user)
-      sign_in(user)
 
       render_inline Layout::AdminHeaderComponent.new(user)
 
@@ -24,7 +23,6 @@ describe Layout::AdminHeaderComponent do
 
     it "does not show the menu managers" do
       create(:manager, user: user)
-      sign_in(user)
 
       render_inline Layout::AdminHeaderComponent.new(user)
 

spec/system/management_spec.rb

@@ -0,0 +1,22 @@
+require "rails_helper"
+
+describe "Management" do
+  let(:user) { create(:user) }
+
+  scenario "Does not show the admin menu when managing users having the admin menu" do
+    create(:manager, user: user)
+    create(:moderator, user: create(:user, :in_census, document_number: "12345678M"))
+
+    login_as(user)
+    visit management_sign_in_path
+    click_link "Select user"
+    fill_in "Document number", with: "12345678M"
+    click_button "Check document"
+
+    expect(page).to have_content "This user account is already verified"
+    expect(page).not_to have_content "You don't have new notifications"
+    expect(page).not_to have_content "My content"
+    expect(page).not_to have_content "My account"
+    expect(page).not_to have_content "Sign out"
+  end
+end