module Comee
  module Core
    class CustomerOrderItem < ApplicationRecord
      before_save :calculate_total_price, unless: proc { |item| item.total_price }

      belongs_to :customer_order
      belongs_to :product
      belongs_to :unit

      validates :customer_item_no, :customer_item_description, :quantity, :price, :delivery_date, presence: true
      validates :quantity, :price, numericality: {greater_than_or_equal_to: 0}
      validates :total_price, numericality: {greater_than_or_equal_to: 0}, allow_nil: true

      def calculate_total_price
        self.total_price = price * quantity
      end

      def self.ransackable_attributes(_auth_object = nil)
        %w[id customer_order_id product_id unit_id customer_item_no customer_item_description delivery_date]
      end

      def self.ransackable_associations(_auth_object = nil)
        %w[customer_order product unit]
      end
    end
  end
end