module OffsitePayments::Integrations::FirstData

def self.notification(post)
  Notification.new(post)
end

def self.return(query_string)
  Return.new(query_string)
end

def self.service_url
  mode = OffsitePayments.mode
  case mode
  when :production
    self.production_url
  when :test
    self.test_url
  else
    raise StandardError, "Integration mode set to an invalid value: #{mode}"
  end
end