if defined?(ActiveAdmin)
  include ActiveAdmin::ActsAsList::Helper
  include ActiveAdmin::AwesomeNestedSet::Helper

  ActiveAdmin.register Ecm::Downloads::DownloadCategory do
    decorate_with Ecm::Downloads::DownloadCategoryDecorator

    # menu entry settings
    menu :parent => I18n.t('ecm.downloads.active_admin.menu')

    permit_params :description,
                  :ecm_downloads_downloads_count,
                  :locale,
                  :name,
                  :parent_id,
                  :position,
                  :slug,
                  ecm_downloads_downloads_attributes: [
                    :asset,
                    :description,
                    :ecm_downloads_download_category_id,
                    :name,
                    :published
                  ]

    # sorting
    config.sort_order = 'lft_asc'

    # awesome nested set
    sortable_tree_member_actions

    # scopes
    scope :all
    scope :roots
    I18n.available_locales.each do |locale|
      self.send(:scope, locale.to_s) do |klass|
        klass.where(:locale => locale)
        # klass.where(klass.arel_table[:locale].eq(locale).or(klass.arel_table[:locale].eq(nil)))
      end
    end

    form do |f|
      f.inputs do
        f.semantic_errors *f.object.errors.keys
      end

      f.inputs do
        f.input :parent, :as => :select,
                         :collection => nested_set_options(Ecm::Downloads::DownloadCategory, f.object) { |dc| "#{'-' * dc.depth} #{dc.name}" }
        f.input :locale, :as => :select,
                         :collection => I18n.available_locales.map(&:to_s)
        f.input :name
        f.input :description
      end

      f.inputs do
        f.has_many :ecm_downloads_downloads do |d|
          if d.object.persisted?
            d.input :_destroy, :as => :boolean, :label => I18n.t('active_admin.delete')
          end
          d.input :asset, :as => :file
          d.input :name
          d.input :published, :as => :boolean
          d.input :description
        end
      end

      f.actions
    end

    index do
      selectable_column
      sortable_tree_columns
      column :locale
      column :name do |dc|
        span(:style => "margin-left: #{25 * dc.level}px") { dc.name }
      end
      column(:description) do |dc|
        truncate(dc.description, :length => 100 , :separator => ' ')
      end
      column :ecm_downloads_downloads_count
      actions
    end

    show :title => :to_s do
      attributes_table do
        row :parent
        row :locale
        row :name
        row :ecm_downloads_downloads_count
        row :created_at
        row :updated_at
      end

      panel Ecm::Downloads::DownloadCategory.human_attribute_name(:description) do
        div do
          ecm_downloads_download_category.description
        end
      end

      panel Ecm::Downloads::DownloadCategory.human_attribute_name(:display_code) do
        div do
          ecm_downloads_download_category.display_code
        end
      end

      panel Ecm::Downloads::DownloadCategory.human_attribute_name(:link) do
        div do
          ecm_downloads_download_category_path(ecm_downloads_download_category)
        end
      end

      panel Ecm::Downloads::DownloadCategory.human_attribute_name(:children) do
        table_for ecm_downloads_download_category.children, :i18n => Ecm::Downloads::DownloadCategory do
          sortable_tree_columns
          column(:index_name) do |ecm_downloads_download_category|
            link_to ecm_downloads_download_category, [:admin, ecm_downloads_download_category]
          end
          column :description
          column :ecm_downloads_downloads_count
        end
      end

      panel Ecm::Downloads::DownloadCategory.human_attribute_name(:ecm_downloads_downloads) do
        table_for ecm_downloads_download_category.ecm_downloads_downloads, :i18n => Ecm::Downloads::Download do
          sortable_columns
          column(:name) do |ecm_downloads_download|
            link_to ecm_downloads_download, [:admin, ecm_downloads_download]
          end
          acts_as_published_columns
          column :asset_file_name
          column :asset_file_size, :sortable => :asset_file_size do |download|
            number_to_human_size(download.asset_file_size)
          end
          column :created_at
        end
      end
    end
  end
end