# -*- 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
# limitations under the License.
"""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


@base.ReleaseTracks(base.ReleaseTrack.GA)
class GetCsr(base.Command):
  # pylint: disable=line-too-long
  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
  awaiting user activation. The CSR should be signed by the issuing Certificate
  Authority and uploaded back 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-west1 --pool=my-pool > server-tls-1.csr
  """

  @staticmethod
  def Args(parser):
    resource_args.AddCertAuthorityPositionalResourceArg(
        parser, 'for which to get the CSR')
    parser.display_info.AddFormat("""value(pemCsr)""")

  def Run(self, args):
    client = privateca_base.GetClientInstance(api_version='v1')
    messages = privateca_base.GetMessagesModule(api_version='v1')
    ca_ref = args.CONCEPTS.certificate_authority.Parse()

    return client.projects_locations_caPools_certificateAuthorities.Fetch(
        messages
        .PrivatecaProjectsLocationsCaPoolsCertificateAuthoritiesFetchRequest(
            name=ca_ref.RelativeName()))