docbrown/app/services/moderation_service.rb

class ModerationService
  def initialize
    @available_moderators = User.with_role(:trusted).where("last_moderation_notification < ?", 28.hours.ago)
  end

  def send_moderation_notification(object)
    return unless @available_moderators.any?

    moderator = @available_moderators.sample
    Notification.create(
      user_id: moderator.id,
      notifiable_id: object.id,
      notifiable_type: object.class.name,
      action: "Moderation",
    )
    moderator.update_column(:last_moderation_notification, Time.current)
  end
  handle_asynchronously :send_moderation_notification
end