# Copyright 2017 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
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"""Command to list available features that can be specified in an SSL policy."""

from __future__ import absolute_import
from __future__ import unicode_literals
from googlecloudsdk.api_lib.compute import base_classes
from googlecloudsdk.api_lib.compute.ssl_policies import ssl_policies_utils
from googlecloudsdk.calliope import base
from googlecloudsdk.core import properties


class Create(base.ListCommand):
  """List available features that can be specified in an SSL policy.

  *{command}* lists available features that can be specified as part of the
  list of custom features in an SSL policy.

  An SSL policy specifies the server-side support for SSL features. An SSL
  policy can be attached to a TargetHttpsProxy or a TargetSslProxy. This affects
  connections between clients and the HTTPS or SSL proxy load balancer. SSL
  policies do not affect the connection between the load balancers and the
  backends.
  """

  @staticmethod
  def Args(parser):
    """Set up arguments for this command."""
    parser.display_info.AddFormat('table([])')

  def Run(self, args):
    """Issues the request to list available SSL policy features."""
    holder = base_classes.ComputeApiHolder(self.ReleaseTrack())
    helper = ssl_policies_utils.SslPolicyHelper(holder)
    project = properties.VALUES.core.project.GetOrFail()
    return helper.ListAvailableFeatures(project)
