ronzalo/spree_sales

module Spree
  module Admin
    class SalePricesController < BaseController
      before_action :load_product
      before_action :load_sale_prices

      respond_to :js, :html

      # Show all sale prices for a product
      def index
        @sale_price = Spree::SalePrice.new
      end

      # Create a new sale price
      def create
        @sale_price = Spree::SalePrice.new sale_price_params
        # rails 5 the belongs_to association is required by default
        @sale_price.price = @product.master.default_price

        if @sale_price.valid? && @sale_price.validate_value(sale_price_params[:value], sale_price_params)
          @product.put_on_sale sale_price_params[:value], sale_price_params
          redirect_to admin_product_sale_prices_path(@product)
        else
          render :index
        end
      end

      # Destroy a sale price
      def destroy
        sale_price = Spree::SalePrice.find(params[:id])
        sale_price.destroy
        @product.touch

        respond_with(sale_price)
      end

      private

      # Load the product as a before filter. Redirect to the referer if no product is found
      def load_product
        @product = Spree::Product.find_by(slug: params[:product_id])
        redirect_to request.referer unless @product.present?
      end

      # Load product sale_prices as a before filter.
      def load_sale_prices
        @sale_prices = @product.sale_prices

        @variants = @product.variants_including_master.map do |variant|
          [variant.id, variant.sku_and_options_text]
        end
        @variants.insert(0, [:all_variants, Spree.t(:all_variants)])
      end

      # Sale price params
      def sale_price_params
        params.require(:sale_price).permit(
          :value,
          :start_at,
          :end_at,
          :currency,
          :variant,
          :calculator
        )
      end
    end
  end
end