if defined?(ActiveAdmin)
  require 'csv'

  ActiveAdmin.register Effective::Order, namespace: EffectiveOrders.active_admin_namespace, as: 'Orders' do
    menu label: 'Orders', if: proc { (authorized?(:manage, Effective::Order.new(user: current_user)) rescue false) }

    actions :index

    filter :id, label: 'Order Number'
    filter :user
    filter :created_at, label: 'Order Date'
    filter :payment

    scope :purchased, default: true do |objs| objs.purchased end
    scope :all

    controller do
      include EffectiveOrdersHelper

      def scoped_collection
        end_of_association_chain.includes(:user).includes(:order_items => :purchasable)
      end
    end

    sidebar :export, :only => :index do
      export_csv_path = ['export_csv', EffectiveOrders.active_admin_namespace.presence, 'orders_path'].compact.join('_')
      link_to "Export Orders to .csv", public_send(export_csv_path)
    end

    index :download_links => false do
      column 'Order', :sortable => :id do |order|
        link_to "##{order.to_param}", effective_orders.order_path(order)
      end

      column 'Buyer', :sortable => :user_id do |order|
        link_to order.user, (admin_user_path(order.user) rescue '#')
      end

      column 'Summary' do |order|
        order_summary(order)
      end

      column :purchased_at

      column do |order|
        links = link_to('View', effective_orders.order_path(order), class: 'member_link view_link')

        if authorized?(:manage, Effective::Order) # This is the Admin level check
          details_path = ['details', EffectiveOrders.active_admin_namespace.presence, 'order_path'].compact.join('_')
          links += link_to('Details', public_send(details_path, order))
        end

        links
      end
    end

    member_action :details do
      @order = Effective::Order.find(params[:id])
      @page_title = "Order ##{@order.to_param} Details"

      render file: 'admin/orders/show'
    end

    collection_action :export_csv do
      @orders = Effective::Order.purchased.includes(:addresses)

      col_headers = []
      col_headers << "Order ID"
      col_headers << "Full Name"
      col_headers << "Purchased"
      col_headers << "Subtotal"
      col_headers << "Tax"
      col_headers << "Total"

      csv_string = CSV.generate do |csv|
        csv << col_headers

        @orders.each do |order|
          row = []

          row << order.to_param
          row << (order.billing_address.try(:full_name) || order.user.to_s)
          row << order.purchased_at.strftime("%Y-%m-%d %H:%M:%S %z")
          row << (order.subtotal / 100.0).round(2)
          row << (order.tax / 100.0).round(2)
          row << (order.total / 100.0).round(2)

          csv << row
        end
      end

      send_data(csv_string, :type => 'text/csv; charset=utf-8; header=present', :filename => "orders-export.csv")
    end
  end
end