Noosfero/noosfero

class DeliveryPlugin::Method < ApplicationRecord
  Types = ["pickup", "deliver"]

  # see also: Profile::LOCATION_FIELDS
  AddressFields = %w[
    address address_line2 address_reference district city state country_name zip_code
  ].map(&:to_sym)

  attr_accessible :profile, :delivery_type, :name, :description,
                  :fixed_cost, :free_over_price, :distribution_margin_percentage, :distribution_margin_fixed

  belongs_to :profile, optional: true

  has_many :delivery_options, class_name: "DeliveryPlugin::Option", foreign_key: :delivery_method_id, dependent: :destroy

  validates_presence_of :profile
  validates_presence_of :name
  validates_inclusion_of :delivery_type, in: Types

  scope :pickup, -> { where delivery_type: "pickup" }
  scope :delivery, -> { where delivery_type: "deliver" }

  extend CurrencyFields::ClassMethods
  has_currency :fixed_cost
  has_currency :free_over_price
  has_currency :distribution_margin_percentage
  has_currency :distribution_margin_fixed

  def pickup?
    self.delivery_type == "pickup"
  end

  def deliver?
    self.delivery_type == "deliver"
  end

  def has_distribution_margin?
    (self.distribution_margin_percentage.present? && self.distribution_margin_percentage.nonzero?) ||
      (self.distribution_margin_fixed.present? && self.distribution_margin_fixed.nonzero?)
  end

  def has_fixed_cost?(order_price = nil)
    if order_price.present? && order_price.nonzero? && self.free_over_price.present? && self.free_over_price.nonzero?
      order_price <= self.free_over_price
    else
      self.fixed_cost.present? && self.fixed_cost.nonzero?
    end
  end

  def distribution_margin(order_price)
    value = 0
    value += self.distribution_margin_fixed if self.distribution_margin_fixed.present?
    value += order_price * (self.distribution_margin_percentage / 100) if self.distribution_margin_percentage.present?
    value
  end

  def has_cost?(order_price = nil)
    has_cost = self.has_distribution_margin?
    has_cost ||= self.has_fixed_cost? order_price
  end

  def free?(order_price = nil)
    !self.has_cost?
  end

  def cost(order_price = nil)
    value = 0
    value += self.fixed_cost if self.has_fixed_cost? order_price
    value += self.distribution_margin order_price if self.has_distribution_margin?
    value
  end
  has_currency :cost

  protected
end