module Spree
  module Admin
    class VariantsController < ResourceController
      belongs_to 'spree/product', :find_by => :permalink
      create.before :create_before
      new_action.before :new_before

      def index
        respond_with(collection) do |format|
          format.html
          format.json { render :json => json_data }
        end
      end

      # override the destory method to set deleted_at value
      # instead of actually deleting the product.
      def destroy
        @variant = Variant.find(params[:id])

        @variant.deleted_at = Time.now()
        if @variant.save
          flash.notice = I18n.t('notice_messages.variant_deleted')
        else
          flash.notice = I18n.t('notice_messages.variant_not_deleted')
        end

        respond_with(@variant) do |format|
          format.html { redirect_to admin_product_variants_url(params[:product_id]) }
          format.js  { render_js_for_destroy }
        end
      end

      def update_positions
        params[:positions].each do |id, index|
          Variant.where(:id => id).update_all(:position => index)
        end

        respond_with(@variant) do |format|
          format.html { redirect_to admin_product_variants_url(params[:product_id]) }
          format.js  { render :text => 'Ok' }
        end
      end

      protected
      def create_before
        option_values = params[:new_variant]
        option_values.each_value {|id| @object.option_values << OptionValue.find(id)}
        @object.save
      end


      def new_before
        @object.attributes = @object.product.master.attributes.except('id', 'created_at', 'deleted_at',
                                                                      'sku', 'is_master', 'count_on_hand')
      end

      def collection
        @deleted = (params.key?(:deleted)  && params[:deleted] == "on") ? "checked" : ""

        if @deleted.blank?
          @collection ||= super
        else
          @collection ||= Variant.where(:product_id => parent.id).deleted
        end
        @collection
      end

      def json_data
        ( parent.variants.presence || [parent.master] ).map do |v|
          { :label => v.options_text.presence || v.name, :id => v.id }
        end
      end

    end
  end
end