Added setting for admin to limit the number of rooms for the user (#607)

app/helpers/rooms_helper.rb

@@ -27,4 +27,26 @@ module RoomsHelper
     Setting.find_or_create_by!(provider: user_settings_provider).get_value("Room Authentication") == "true" &&
       current_user.nil?
   end
+
+  def number_of_rooms_allowed
+    Setting.find_or_create_by!(provider: user_settings_provider).get_value("Room Limit").to_i
+  end
+
+  def room_limit_exceeded
+    limit = Setting.find_or_create_by!(provider: user_settings_provider).get_value("Room Limit").to_i
+
+    # Does not apply to admin or users that aren't signed in
+    # 15+ option is used as unlimited
+    return false if !current_user || current_user&.has_role?(:admin) || limit == 15
+
+    current_user.rooms.length >= limit
+  end
+
+  def current_room_exceeds_limit(room)
+    # Get how many rooms need to be deleted to reach allowed room number
+    limit = Setting.find_or_create_by!(provider: user_settings_provider).get_value("Room Limit").to_i
+    @diff = current_user.rooms.count - limit
+
+    @diff.positive? && current_user.rooms.pluck(:id).index(room.id) + 1 > limit
+  end
 end