discourse/app/jobs/regular/delete_inaccessible_notifications.rb

# frozen_string_literal: true

module Jobs
  class DeleteInaccessibleNotifications < Jobs::Base
    def execute(args)
      raise Discourse::InvalidParameters.new(:topic_id) if args[:topic_id].blank?

      Notification.where(topic_id: args[:topic_id]).find_each do |notification|
        next unless notification.user && notification.topic

        if !Guardian.new(notification.user).can_see?(notification.topic)
          notification.destroy
        end
      end
    end
  end
end