# -*- 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 spanner instance partitions describe."""
from __future__ import absolute_import
from __future__ import division
from __future__ import unicode_literals
import textwrap
from googlecloudsdk.api_lib.spanner import instance_partitions
from googlecloudsdk.calliope import base
from googlecloudsdk.command_lib.spanner import resource_args


@base.DefaultUniverseOnly
@base.ReleaseTracks(
    base.ReleaseTrack.GA, base.ReleaseTrack.BETA, base.ReleaseTrack.ALPHA
)
class Describe(base.DescribeCommand):
  """Describe a Spanner instance partition."""

  detailed_help = {
      'EXAMPLES': textwrap.dedent("""\
        To describe a Spanner instance partition, run:

          $ {command} my-instance-partition-id --instance=my-instance-id
        """),
  }

  @staticmethod
  def Args(parser):
    """Args is called by calliope to gather arguments for this command.

    Please add arguments in alphabetical order except for no- or a clear- pair
    for that argument which can follow the argument itself.

    Args:
      parser: An argparse parser that you can use to add arguments that go on
        the command line after this command. Positional arguments are allowed.
    """
    resource_args.AddInstancePartitionResourceArg(parser, 'to describe')

  def Run(self, args):
    """This is what gets called when the user runs this command.

    Args:
      args: an argparse namespace. All the arguments that were provided to this
        command invocation.

    Returns:
      Some value that we want to have printed later.
    """
    return instance_partitions.Get(args.CONCEPTS.instance_partition.Parse())