# -*- coding: utf-8 -*- #
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#
# 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
#
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"""Command for getting a named set from a Compute Engine router."""

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

from googlecloudsdk.api_lib.compute import base_classes
from googlecloudsdk.calliope import base
from googlecloudsdk.command_lib.compute import flags as compute_flags
from googlecloudsdk.command_lib.compute.routers import flags


@base.Hidden
@base.ReleaseTracks(base.ReleaseTrack.ALPHA)
class GetNamedSet(base.DescribeCommand):
  """Get a named set from a Compute Engine router.

  *{command}* gets a named set from a Compute Engine router.
  """

  ROUTER_ARG = None

  @classmethod
  def Args(cls, parser):
    GetNamedSet.ROUTER_ARG = flags.RouterArgument()
    GetNamedSet.ROUTER_ARG.AddArgument(parser, operation_type='get')
    parser.add_argument(
        '--set-name',
        help="""Name of the named set to get.""",
        required=True,
    )

  def Run(self, args):
    """Issues the request necessary for getting a named set from a Router."""
    holder = base_classes.ComputeApiHolder(self.ReleaseTrack())
    client = holder.client

    router_ref = GetNamedSet.ROUTER_ARG.ResolveAsResource(
        args,
        holder.resources,
        scope_lister=compute_flags.GetDefaultScopeLister(client),
    )

    request = (
        client.apitools_client.routers,
        'GetNamedSet',
        client.messages.ComputeRoutersGetNamedSetRequest(
            **router_ref.AsDict(), namedSet=args.set_name
        ),
    )

    return client.MakeRequests([request])[0]