Irio/mymoip

module MyMoip
  class PaymentMethods
    include ActiveModel::Validations

    attr_accessor :payment_slip, :credit_card, :debit, :debit_card, :financing,
                  :moip_wallet

    validates_inclusion_of :payment_slip, :credit_card, :debit, :debit_card,
                           :financing, :moip_wallet, in: [true, false]

    def initialize(attrs = {})
      self.payment_slip = true
      self.credit_card  = true
      self.debit        = true
      self.debit_card   = true
      self.financing    = true
      self.moip_wallet  = true

      attrs.each do |attr, value|
        public_send(:"#{attr}=", value)
      end
    end

    def to_xml(root = nil)
      if root.nil?
        xml = ""
        root ||= Builder::XmlMarkup.new(target: xml)
      end

      if not using_all?
        root.FormaPagamento('BoletoBancario')        if payment_slip
        root.FormaPagamento('CartaoDeCredito')       if credit_card
        root.FormaPagamento('DebitoBancario')        if debit
        root.FormaPagamento('CartaoDeDebito')        if debit_card
        root.FormaPagamento('FinanciamentoBancario') if financing
        root.FormaPagamento('CarteiraMoIP')          if moip_wallet
      end

      xml
    end

    def using_all?
      payment_slip and credit_card and debit and debit_card and financing and moip_wallet
    end
  end
end