require 'subj_models/concerns/comprising_external_id'
require 'subj_models/services/values_checker'
require 'subj_models/services/types_support'

module SubjModels

  module OrderModule

    include SubjModels::TypesSupport::OrderStatuses
    include SubjModels::TypesSupport::DeliveryTypes
    include SubjModels::TypesSupport::PaymentTypes
    include SubjModels::ValuesChecker

    def self.included(including_class)

      including_class.class_eval do

        before_create :generate_number

        include SubjModels::ComprisingExternalId

        enum order_status: ORDER_STATUSES
        enum delivery_type: DELIVERY_TYPES
        enum payment_type: PAYMENT_TYPES

        belongs_to :user
        belongs_to :user_delivery_address

        has_one :order_delivery_courier
        has_one :order_delivery_pickup
        has_one :order_delivery_privatbank
        has_one :order_delivery_subj_courier
        has_one :order_delivery_nova_poshta_warhouse
        has_many :order_items, dependent: :destroy
        has_many :event_bookings

        validates :order_status, inclusion: { in: order_statuses.keys }, on: :update
        validates :delivery_type, inclusion: { in: delivery_types.keys }, on: :update
        validates :payment_type, inclusion: { in: payment_types.keys }, on: :update
        validates :total_amount, :order_date, presence: true, on: :update

        scope :user_id, ->  user  { where(user_id: user) }

        scope :with_status, -> (status) do
          where(order_status: Order.order_statuses[status] || status)
        end

        scope :last_order, -> (user_id) do
          Order.joins(:user, :order_items)
          .where("users.id" => user_id)
          .where(order_items: {item_type: 1})
          .last
        end

        scope :has_items, -> { joins(:order_items).where.not(order_items: {order_id: nil}).uniq }

      end

    end

    def order_status_value
      self[:order_status]
    end

    def delivery_type_value
      self[:delivery_type]
    end

    def payment_type_value
      self[:payment_type]
    end

    def to_s
      id.to_s # TODO
    end

    private

    def generate_number
      begin
        self.order_number = "#{Time.now.strftime('%m')}-#{Time.now.strftime('%S%L')}#{rand(100..999)}"
      end while self.class.exists?(order_number: order_number)
    end

  end

end