# 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.
"""The `app regions list` command."""

from __future__ import absolute_import
from __future__ import unicode_literals
from googlecloudsdk.api_lib.app import appengine_api_client
from googlecloudsdk.calliope import base


class List(base.ListCommand):
  """List the availability of flex and standard environments for each region."""

  detailed_help = {
      'EXAMPLES': """\
          To view regional availability of App Engine runtime environments, run:

              $ {command}
          """,
  }

  @staticmethod
  def Args(parser):
    parser.display_info.AddFormat("""
          table(
           region:sort=1,
           standard.yesno(yes="YES", no="NO"):label='SUPPORTS STANDARD',
           flexible.yesno(yes="YES", no="NO"):label='SUPPORTS FLEXIBLE'
          )
    """)

  def Run(self, args):
    api_client = appengine_api_client.GetApiClientForTrack(self.ReleaseTrack())
    return sorted(api_client.ListRegions())
