renyijiu/alipay_mini

module AlipayMini
  module Api
    class SystemOauthToken < AlipayBase

      # when grant_type is 'authorization_code', code is the auth_code
      # when grant_type is 'refresh_token', code is the refresh_token
      def get(grant_type, code)
        case grant_type
        when 'authorization_code'
          params = base_params.merge(grant_type: grant_type, code: code)
        when 'refresh_token'
          params = base_params.merge(grant_type: grant_type, refresh_token: code)
        else
          raise ArgumentError, 'grant type not valid, allow type "authorization_code", "refresh_token"'
        end

        AlipayMini::Request.get(method, sign_params(params))
      end

      private

      def method
        "alipay.system.oauth.token"
      end

    end
  end
end