module Mundipagg
  class CreditCard < ActiveMerchant::Billing::CreditCard
    attr_accessor :installment_count

    def brand_name
      return "" if !brand.present?

      case brand
      when "master"
        "Mastercard"
      when "american_express"
        "Amex"
      when "diners_club"
        "Diners"
      else
        brand.capitalize
      end
    end

    def payload(amount)
      content = {
        amount_in_cents: amount,
        credit_card_brand_enum: brand_name,
        credit_card_number: number,
        credit_card_operation_enum: "AuthAndCapture",
        exp_month: month,
        exp_year: year,
        holder_name: name,
        installment_count: installment_count || 1,
        security_code: verification_value,
      }

      if ::ActiveMerchant::Billing::Base.test?
        content.merge!(payment_method_code: 1)
      end

      {
        amount_in_cents: amount,
        currency_iso_enum: "BRL",
        credit_card_transaction_collection: { credit_card_transaction: content }
      }
    end

    class Response < Mundipagg::Response
      def payload
        body[:create_order_response][:create_order_result]
      end

      def error_item
        { description: error_description, error_code: acquirer_return_code }
      end

      def error_description
        code = "c#{acquirer_message_code}"

        default_message = case code
          when "c1000"
            "Transação não autorizada."
          when "c1001"
            "Cartão com vencimento inválido."
          when "c1011"
            "Cartão inválido."
          when "c1013"
            "Transação não autorizada."
          when "c1025"
            "Cartão bloqueado."
          when "c2001"
            "Cartão vencido."
          when "c9111"
            "Time-out na transação."
          else
            code = "default"
            "Transação não autorizada. Código %{code}."
          end

        I18n.t code, scope: "mundipagg.errors",
          default: default_message,
          code: acquirer_message_code,
          acquirer_message: acquirer_message
      end

      def acquirer_return_code
        payload[:credit_card_transaction_result_collection][:credit_card_transaction_result][:acquirer_return_code]
      end

      def acquirer_message_code
        @acquirer_message_code ||= acquirer_message.split("|").last
      end

      def acquirer_message
        payload[:credit_card_transaction_result_collection][:credit_card_transaction_result][:acquirer_message]
      end
    end
  end
end