require 'subj_models/concerns/comprising_external_id'

module SubjModels

  module NomenclaturePriceModule

    def self.included(including_class)

      including_class.class_eval do

        include SubjModels::ComprisingExternalId

        belongs_to :nomenclature, touch: true
        belongs_to :nomenclature_variety
        belongs_to :quality
        belongs_to :measure_unit
        belongs_to :event
        has_many :order_items

        enum price_type: [:b2b, :b2c]

        validates :current_price, presence: true

        after_create :update_nomenclature_availability

        scope :nomenclature_id, -> (nomenclature_id) { parent_id_scope("nomenclature", nomenclature_id) }

        scope :belongs_to_nomenclature, -> (nomenclature_id) do
          where(nomenclature_id: nomenclature_id).union(joins(:nomenclature_variety).where("nomenclature_varieties.nomenclature_id" => nomenclature_id))
        end

        def update_nomenclature_availability
          if quality && nomenclature
            quality.is_stock ? nomenclature.is_available_for_stock = true : nomenclature.is_available = true
          end
        end

      end

    end

    def to_s
      id.to_s # TODO
    end

  end

end