DEV: adds an option to check for working hours (#201)

config/locales/client.en.yml

@@ -89,3 +89,5 @@ en:
               label: Hours between assignments
             assigned_topic:
               label: Assigned Topic ID
+            in_working_hours:
+              label: Users in working hours

plugin.rb

@@ -665,6 +665,7 @@ after_initialize do
       field :assignees_group, component: :group
       field :assigned_topic, component: :text
       field :minimum_time_between_assignments, component: :text
+      field :in_working_hours, component: :boolean
 
       version 1
 
@@ -732,10 +733,13 @@ after_initialize do
           next
         end
 
+        if fields.dig('in_working_hours', 'value')
           assign_to_user_id = users_ids.shuffle.find do |user_id|
             RandomAssignUtils.in_working_hours?(user_id)
           end
+        end
 
+        assign_to_user_id ||= users_ids.sample
         if assign_to_user_id.blank?
           RandomAssignUtils.no_one!(topic_id, group.name)
           next