# -*- coding: utf-8 -*- #
# Copyright 2013 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.

"""Command to print version information for Google Cloud CLI components.
"""


from googlecloudsdk.calliope import base
from googlecloudsdk.core import config
from googlecloudsdk.core import log
from googlecloudsdk.core.updater import update_manager


@base.ReleaseTracks(base.ReleaseTrack.GA)
class Version(base.Command):
  """Print version information for Google Cloud CLI components."""

  detailed_help = {
      'EXAMPLES': """
          To print the version information for each installed Google Cloud CLI
          components and print a message if updates are available, run:

            $ {command}
          """,
  }

  category = base.SDK_TOOLS_CATEGORY

  @staticmethod
  def Args(parser):
    parser.display_info.AddFormat('flattened[no-pad,separator=" "]')

  def Run(self, args):
    if config.Paths().sdk_root:
      # Components are only valid if this is a built Google Cloud CLI.
      manager = update_manager.UpdateManager()
      versions = dict(manager.GetCurrentVersionsInformation())
    else:
      versions = {}
    versions['Google Cloud SDK'] = config.CLOUD_SDK_VERSION
    return versions

  def Epilog(self, resources_were_displayed):
    if config.Paths().sdk_root:
      # Components are only valid if this is a built Cloud SDK.
      manager = update_manager.UpdateManager()
      if manager.UpdatesAvailable():
        log.status.write("""\
Updates are available for some Google Cloud CLI components.  To install them,
please run:
  $ gcloud components update\n""")
