# Copyright 2016 Google Inc. 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.
"""Lists users in a given project.

Lists users in a given project in the alphabetical order of the user name.
"""

from __future__ import absolute_import
from __future__ import unicode_literals
from googlecloudsdk.api_lib.sql import api_util
from googlecloudsdk.calliope import base
from googlecloudsdk.command_lib.sql import flags
from googlecloudsdk.core import properties


@base.ReleaseTracks(base.ReleaseTrack.GA, base.ReleaseTrack.BETA)
class List(base.ListCommand):
  """Lists Cloud SQL users in a given instance.

  Lists Cloud SQL users in a given instance in the alphabetical
  order of the user name.
  """

  @staticmethod
  def Args(parser):
    flags.AddInstance(parser)
    # TODO(b/36473146): Add an output format test to kill a mutant.
    parser.display_info.AddFormat(flags.USERS_FORMAT_BETA)
    parser.display_info.AddCacheUpdater(flags.UserCompleter)

  def Run(self, args):
    """Lists Cloud SQL users in a given instance.

    Args:
      args: argparse.Namespace, The arguments that this command was invoked
          with.

    Returns:
      SQL user resource iterator.
    """
    client = api_util.SqlClient(api_util.API_VERSION_DEFAULT)
    sql_client = client.sql_client
    sql_messages = client.sql_messages

    project_id = properties.VALUES.core.project.Get(required=True)

    return sql_client.users.List(
        sql_messages.SqlUsersListRequest(
            project=project_id, instance=args.instance)).items
