# -*- coding: utf-8 -*- #
# Copyright 2021 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.

"""List regions available to Google Cloud Functions."""

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

from googlecloudsdk.api_lib.functions.v1 import util
from googlecloudsdk.calliope import base
from googlecloudsdk.command_lib.functions import flags
from googlecloudsdk.command_lib.functions.v1.regions.list import command as command_v1
from googlecloudsdk.command_lib.functions.v2.regions.list import command as command_v2


def _CommonArgs(parser):
  parser.display_info.AddFormat('table(name)')
  parser.display_info.AddUriFunc(flags.GetLocationsUri)
  flags.AddGen2Flag(parser, operates_on_existing_function=False)


@base.ReleaseTracks(base.ReleaseTrack.GA)
class List(base.ListCommand):
  """List regions available to Google Cloud Functions."""

  @staticmethod
  def Args(parser):
    """Registers flags for this command."""
    _CommonArgs(parser)

  @util.CatchHTTPErrorRaiseHTTPException
  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:
      List of cloudfunctions_v1.Location or cloudfunctions_v2.Location:
        List of GCF regions

    Raises:
      FunctionsError: If the user doesn't confirm on prompt.
    """
    if flags.ShouldUseGen2():
      return command_v2.Run(args, self.ReleaseTrack())
    else:
      return command_v1.Run(args)


@base.ReleaseTracks(base.ReleaseTrack.BETA)
class ListBeta(List):
  """List regions available to Google Cloud Functions."""


@base.ReleaseTracks(base.ReleaseTrack.ALPHA)
class ListAlpha(ListBeta):
  """List regions available to Google Cloud Functions."""