# -*- 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.
"""Command for listing organization firewall policies."""

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

from apitools.base.py import list_pager
from googlecloudsdk.api_lib.compute import base_classes
from googlecloudsdk.api_lib.compute import lister
from googlecloudsdk.calliope import base
from googlecloudsdk.command_lib.compute.firewall_policies import flags


@base.DefaultUniverseOnly
class List(base.ListCommand):
  """List Compute Engine organization firewall policies.

  *{command}* is used to list organization firewall policies. An organization
  firewall policy is a set of rules that controls access to various resources.
  """

  @classmethod
  def Args(cls, parser):
    flags.AddArgsListFirewallPolicy(parser)
    parser.display_info.AddFormat(flags.DEFAULT_LIST_FORMAT)
    lister.AddBaseListerArgs(parser)
    parser.display_info.AddCacheUpdater(flags.FirewallPoliciesCompleter)

  def Run(self, args):
    holder = base_classes.ComputeApiHolder(self.ReleaseTrack())
    client = holder.client.apitools_client
    messages = client.MESSAGES_MODULE
    if args.organization:
      parent_id = 'organizations/' + args.organization
    elif args.folder:
      parent_id = 'folders/' + args.folder

    request = messages.ComputeFirewallPoliciesListRequest(parentId=parent_id)
    return list_pager.YieldFromList(
        client.firewallPolicies,
        request,
        field='items',
        limit=args.limit,
        batch_size=None)


List.detailed_help = {
    'EXAMPLES':
        """\
    To list organization firewall policies under folder with ID
    ``123456789", run:

      $ {command} --folder=123456789
    """,
    'IAM PERMISSIONS': """\
    To list firewall policies, the user must have the following
    permission: *`compute.firewallPolicies.list`.

    To find predefined roles that contain those permissions, see the [Compute
    Engine IAM roles](https://cloud.google.com/compute/docs/access/iam).
    """
}