# -*- coding: utf-8 -*- #
# Copyright 2023 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.
"""Create endpoint association command."""

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

import datetime

from googlecloudsdk.api_lib.network_security.firewall_endpoint_associations import association_api
from googlecloudsdk.calliope import base
from googlecloudsdk.command_lib.network_security import association_flags
from googlecloudsdk.command_lib.util.args import labels_util
from googlecloudsdk.core import exceptions as core_exceptions
from googlecloudsdk.core import properties

DETAILED_HELP = {
    'DESCRIPTION': """
        Associate the specified network with the firewall endpoint. Successful
        creation of a firewall endpoint association results in an association
        in READY state. Check the progress of association creation by using
        `gcloud network-security firewall-endpoint-associations list`.

        For more examples, refer to the EXAMPLES section below.

        """,
    'EXAMPLES': """
        To associate a network with a firewall endpoint, run:

            $ {command} --network=projects/my-project/networks/global/myNetwork --endpoint=organizations/1234/locations/us-central1-a/firewallEndpoints/my-endpoint  --zone=us-central1-a  --project=my-project
        """,
}

_PROJECT_SCOPE_SUPPORTED_TRACKS = (
    base.ReleaseTrack.ALPHA,
)


@base.DefaultUniverseOnly
class Create(base.CreateCommand):
  """Create a Firewall Plus endpoint association."""

  @classmethod
  def Args(cls, parser):
    project_scope_supported = (
        cls.ReleaseTrack() in _PROJECT_SCOPE_SUPPORTED_TRACKS
    )
    association_flags.AddAssociationIDArg(parser)
    association_flags.AddZoneArg(parser)
    association_flags.AddEndpointResource(
        cls.ReleaseTrack(), parser, project_scope_supported
    )
    association_flags.AddNetworkResource(parser)
    association_flags.AddMaxWait(parser, '60m')  # default to 60 minutes wait.
    association_flags.AddTLSInspectionPolicy(cls.ReleaseTrack(), parser)
    base.ASYNC_FLAG.AddToParser(parser)
    base.ASYNC_FLAG.SetDefault(parser, True)
    labels_util.AddCreateLabelsFlags(parser)

  def Run(self, args):
    client = association_api.Client(self.ReleaseTrack())

    project = args.project or properties.VALUES.core.project.GetOrFail()
    zone = args.zone
    parent = 'projects/{}/locations/{}'.format(project, zone)
    association_id = args.association_id
    labels = labels_util.ParseCreateArgs(
        args, client.messages.FirewallEndpointAssociation.LabelsValue
    )

    is_async = args.async_
    max_wait = datetime.timedelta(seconds=args.max_wait)

    network = args.CONCEPTS.network.Parse()
    result = args.CONCEPTS.endpoint.Parse()
    endpoint = result.result
    tls_inspection_policy = None

    if args.IsSpecified('tls_inspection_policy'):
      tls_inspection_policy = args.CONCEPTS.tls_inspection_policy.Parse()
      if tls_inspection_policy is None:
        raise core_exceptions.Error(
            'TLS Inspection Policy resource path is either malformed or missing'
            ' necessary flag `--tls-inspection-policy-region`.\nNOTE: TLS'
            ' Inspection Policy needs to be in the same region as Firewall Plus'
            ' endpoint resource.'
        )

    operation = client.CreateAssociation(
        association_id=association_id,
        parent=parent,
        network=network.RelativeName(),
        firewall_endpoint=endpoint.RelativeName(),
        tls_inspection_policy=tls_inspection_policy.RelativeName()
        if tls_inspection_policy is not None
        else None,
        labels=labels,
    )
    # Return the in-progress operation if async is requested.
    if is_async:
      # Delete operations have no format by default,
      # but here we want the operation metadata to be printed.
      if not args.IsSpecified('format'):
        args.format = 'default'
      return operation

    if association_id:
      association_name = '{}/firewallEndpointAssociations/{}'.format(
          parent, association_id
      )
    else:
      association_name = 'between {} and {}'.format(
          network.RelativeName(), endpoint.RelativeName()
      )

    return client.WaitForOperation(
        operation_ref=client.GetOperationRef(operation),
        message=(
            'waiting for firewall endpoint association {} to be created'.format(
                association_name
            )
        ),
        has_result=True,
        max_wait=max_wait,
    )


Create.detailed_help = DETAILED_HELP
