# -*- coding: utf-8 -*- #
# Copyright 2022 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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"""gcloud dns managed-zone set-iam-policy command."""


from googlecloudsdk.api_lib.dns import util
from googlecloudsdk.api_lib.util import apis
from googlecloudsdk.calliope import base
from googlecloudsdk.command_lib.dns import flags
from googlecloudsdk.command_lib.iam import iam_util


@base.UniverseCompatible
def _Args(parser):
  flags.GetZoneResourceArg(
      'The name of the managed-zone to set the IAM policy for.').AddToParser(
          parser)
  parser.add_argument(
      '--policy-file',
      required=True,
      help='JSON or YAML file with the IAM policy')


def _Run(args, release_track):
  """Runs the set-iam-policy command.

  Args:
    args: The argparse namespace.
    release_track: The current release track.

  Returns:
    The policy set on the managed zone.
  """
  if release_track == base.ReleaseTrack.ALPHA:
    api_version = util.GetApiFromTrack(release_track)
  else:
    # The v1/v1beta2 apitools gcloud clients are not compatible with this method
    api_version = 'v2'

  dns_client = util.GetApiClient(api_version)
  messages = apis.GetMessagesModule('dns', api_version)
  zone_ref = args.CONCEPTS.zone.Parse()

  if release_track == base.ReleaseTrack.ALPHA:
    resource_name = 'projects/{0}/managedZones/{1}'.format(
        zone_ref.project, zone_ref.managedZone)
    request_type = messages.DnsProjectsManagedZonesSetIamPolicyRequest
    service = dns_client.projects_managedZones
  else:
    resource_name = 'projects/{0}/locations/{1}/managedZones/{2}'.format(
        zone_ref.project, 'global', zone_ref.managedZone)
    request_type = messages.DnsManagedZonesSetIamPolicyRequest
    service = dns_client.managedZones

  policy, update_mask = iam_util.ParsePolicyFileWithUpdateMask(
      args.policy_file, messages.GoogleIamV1Policy)

  # Force version 3 to support conditions.
  policy.version = iam_util.MAX_LIBRARY_IAM_SUPPORTED_VERSION
  if update_mask and 'version' not in update_mask:
    update_mask = update_mask + ',version'

  req = request_type(
      resource=resource_name,
      googleIamV1SetIamPolicyRequest=messages.GoogleIamV1SetIamPolicyRequest(
          policy=policy, updateMask=update_mask))

  return service.SetIamPolicy(req)


@base.UniverseCompatible
@base.ReleaseTracks(base.ReleaseTrack.ALPHA)
class SetIamPolicyAlpha(base.Command):
  """Set the IAM policy for a Cloud DNS managed-zone.

  This command sets the IAM policy of the specified managed-zone.

  ## EXAMPLES

  To set the IAM policy of your managed-zone , run:

    $ {command} my-zone --policy-file=policy.json
  """

  @staticmethod
  def Args(parser):
    _Args(parser)

  def Run(self, args):
    return _Run(args, self.ReleaseTrack())


@base.UniverseCompatible
@base.ReleaseTracks(base.ReleaseTrack.BETA)
class SetIamPolicyBeta(base.Command):
  """Set the IAM policy for a Cloud DNS managed-zone.

  This command sets the IAM policy of the specified managed-zone.

  ## EXAMPLES

  To set the IAM policy of your managed-zone , run:

    $ {command} my-zone --policy-file=policy.json
  """

  @staticmethod
  def Args(parser):
    _Args(parser)

  def Run(self, args):
    return _Run(args, self.ReleaseTrack())


@base.UniverseCompatible
@base.ReleaseTracks(base.ReleaseTrack.GA)
class SetIamPolicyGA(base.Command):
  """Set the IAM policy for a Cloud DNS managed-zone.

  This command sets the IAM policy of the specified managed-zone.

  ## EXAMPLES

  To set the IAM policy of your managed-zone , run:

    $ {command} my-zone --policy-file=policy.json
  """

  @staticmethod
  def Args(parser):
    _Args(parser)

  def Run(self, args):
    return _Run(args, self.ReleaseTrack())
