# -*- 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.
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"""Command to query Anthos on VMware version configuration."""

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

from googlecloudsdk.api_lib.container.gkeonprem import vmware_clusters as apis
from googlecloudsdk.calliope import base
from googlecloudsdk.calliope import parser_arguments
from googlecloudsdk.command_lib.container.vmware import flags
from googlecloudsdk.core import log
import six

_EXAMPLES = """
To query all available versions in location `us-west1`, run:

$ {command} --location=us-west1

To query versions for creating a cluster with an admin cluster membership named
`my-admin-cluster-membership` managed in project `my-admin-cluster-project` and
location `us-west`, run:

$ {command} --location=us-west1 --admin-cluster-membership=my-admin-cluster-membership --admin-cluster-membership-project=my-admin-cluster-project

To query versions for upgrading a user cluster named `my-user-cluster` in
location `us-west1`, run:

$ {command} --location=us-west1 --cluster=my-user-cluster
"""

_EPILOG = """
An Anthos version must be made available on the admin cluster ahead of the user
cluster creation or upgrade. Versions annotated with isInstalled=true are
installed on the admin cluster for the purpose of user cluster creation or
upgrade whereas other version are released and will be available for upgrade
once dependencies are resolved.

To install the version in the admin cluster, run:
$ {} container vmware admin-clusters update my-admin-cluster --required-platform-version=VERSION
"""


@base.ReleaseTracks(
    base.ReleaseTrack.ALPHA, base.ReleaseTrack.BETA, base.ReleaseTrack.GA
)
class QueryVersionConfig(base.Command):
  """Query versions for creating or upgrading an Anthos on VMware user cluster."""

  detailed_help = {'EXAMPLES': _EXAMPLES}

  @staticmethod
  def Args(parser: parser_arguments.ArgumentInterceptor):
    """Registers flags for this command."""
    flags.AddLocationResourceArg(parser, 'to query versions')
    flags.AddConfigType(parser)

  def Run(self, args):
    """Runs the query-version-config command."""
    client = apis.ClustersClient()
    return client.QueryVersionConfig(args)

  def Epilog(self, resources_were_displayed):
    super(QueryVersionConfig, self).Epilog(resources_were_displayed)
    command_base = 'gcloud'
    if (
        self.ReleaseTrack() is base.ReleaseTrack.BETA
        or self.ReleaseTrack() is base.ReleaseTrack.ALPHA
    ):
      command_base += ' ' + six.text_type(self.ReleaseTrack()).lower()
    log.status.Print(_EPILOG.format(command_base))