# Lint as: python3
# -*- coding: utf-8 -*- #
# Copyright 2020 Google LLC. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
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"""Get the csr of a pending Certificate Authority."""

from __future__ import absolute_import
from __future__ import division
from __future__ import unicode_literals

from googlecloudsdk.api_lib.privateca import base as privateca_base
from googlecloudsdk.calliope import base
from googlecloudsdk.command_lib.privateca import resource_args


class GetCsr(base.Command):
  r"""Get the CSR for a subordinate certificate authority that has not yet been activated.

  Gets the PEM-encoded CSR for a subordinate certificate authority that is
  pending activation. The CSR should be signed by the issuing Certificate
  Authority and uploaded back to the Private CA instance using the `subordinates
  activate` command.

  ## EXAMPLES

    To download the CSR for the 'server-tls-1' CA into a file called
    'server-tls-1.csr':

      $ {command} server-tls-1 --location=us > server-tls-1.csr
  """

  @staticmethod
  def Args(parser):
    resource_args.AddCertificateAuthorityPositionalResourceArg(
        parser, 'to get csr for')
    parser.display_info.AddFormat("""value(pemCsr)""")

  def Run(self, args):
    client = privateca_base.GetClientInstance()
    messages = privateca_base.GetMessagesModule()
    ca_ref = args.CONCEPTS.certificate_authority.Parse()

    return client.projects_locations_certificateAuthorities.Fetch(
        messages.PrivatecaProjectsLocationsCertificateAuthoritiesFetchRequest(
            name=ca_ref.RelativeName()))
