zammad/app/helpers/knowledge_base_visibility_class_helper.rb

module KnowledgeBaseVisibilityClassHelper
  def visibility_class_name(object)
    return if !current_user&.permissions?('knowledge_base.editor')

    suffix = case object
             when CanBePublished
               visiblity_class_suffix_can_be_published(object)
             when KnowledgeBase::Category
               visiblity_class_suffix_category(object)
             end

    "kb-item--#{suffix}" if suffix
  end

  def visiblity_class_suffix_can_be_published(object)
    case object.can_be_published_aasm.current_state
    when :internal
      'internal'
    when :archived
      'archived'
    when :draft
      'not-published'
    end
  end

  def visiblity_class_suffix_category(object)
    return if object.public_content?

    if object.self_with_children_answers.only_internal.any?
      'internal'
    else
      'empty'
    end
  end
end