module Returnly
  module Builders
    class CustomerReturn
      class << self
        def build_by_return_items(return_items)
          Spree::CustomerReturn.create(
            return_items: return_items,
            stock_location_id: stock_location_id(return_items.first)
          )
        end

        def build_by_stock_location(stock_location)
          Spree::CustomerReturn.new(stock_location: stock_location)
        end

        private

        def stock_location_id(return_item)
          return_item_order(return_item).shipments.last.stock_location_id
        end

        def return_item_order(return_item)
          return_item.inventory_unit.order
        end
      end
    end
  end
end