# -*- coding: utf-8 -*- #
# Copyright 2020 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.
"""Code that's shared between multiple service-attachments subcommands."""

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

import six


def GetConnectionPreference(args, messages):
  """Get connection preference of the service attachment."""
  if args.connection_preference == 'ACCEPT_AUTOMATIC':
    return messages.ServiceAttachment.ConnectionPreferenceValueValuesEnum.ACCEPT_AUTOMATIC
  if args.connection_preference == 'ACCEPT_MANUAL':
    return messages.ServiceAttachment.ConnectionPreferenceValueValuesEnum.ACCEPT_MANUAL

  return None


def GetConsumerAcceptList(args, messages):
  """Get consumer accept list of the service attachment."""
  consumer_accept_list = []
  for project_limit in args.consumer_accept_list:
    for project_id_or_network_url, conn_limit in sorted(
        six.iteritems(project_limit)
    ):
      if '/networks/' in project_id_or_network_url:
        consumer_accept_list.append(
            messages.ServiceAttachmentConsumerProjectLimit(
                networkUrl=project_id_or_network_url,
                connectionLimit=int(conn_limit),
            )
        )
      elif '/forwardingRules/' in project_id_or_network_url:
        raise ValueError(
            'Private Service Connect Endpoint URL is not supported for consumer'
            ' accept list'
        )
      else:
        consumer_accept_list.append(
            messages.ServiceAttachmentConsumerProjectLimit(
                projectIdOrNum=project_id_or_network_url,
                connectionLimit=int(conn_limit),
            )
        )
  return consumer_accept_list


def GetConsumerAcceptListWithEndpointBasedSecurity(args, messages):
  """Get consumer accept list of the service attachment with endpoint based security supported."""
  consumer_accept_list = []
  for project_limit in args.consumer_accept_list:
    for consumer_entry, conn_limit_raw in sorted(six.iteritems(project_limit)):
      # Accept list with network URL.
      if '/networks/' in consumer_entry:
        if not conn_limit_raw:
          raise ValueError(
              f'Connection limit is required for network URL: {consumer_entry}'
          )
        consumer_accept_list.append(
            messages.ServiceAttachmentConsumerProjectLimit(
                networkUrl=consumer_entry,
                connectionLimit=int(conn_limit_raw),
            )
        )
      # Accept list with endpoint URL.
      elif '/forwardingRules/' in consumer_entry:
        if conn_limit_raw:
          consumer_accept_list.append(
              messages.ServiceAttachmentConsumerProjectLimit(
                  endpointUrl=consumer_entry,
                  connectionLimit=int(conn_limit_raw),
              )
          )
        else:
          consumer_accept_list.append(
              messages.ServiceAttachmentConsumerProjectLimit(
                  endpointUrl=consumer_entry
              )
          )
      else:
        # Accept list with project ID or number.
        if not conn_limit_raw:
          raise ValueError(
              'Connection limit is required for project ID or number:'
              f' {consumer_entry}'
          )
        consumer_accept_list.append(
            messages.ServiceAttachmentConsumerProjectLimit(
                projectIdOrNum=consumer_entry,
                connectionLimit=int(conn_limit_raw),
            )
        )
  return consumer_accept_list