# Copyright 2022 Google LLC
#
# 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.

_VAR_ROUTES_TEMPLATE = '''{
  next-hop = {
    dest_range    = "192.168.128.0/24"
    tags          = null
    next_hop_type = "%s"
    next_hop      = "%s"
  }
  gateway = {
    dest_range    = "0.0.0.0/0",
    priority      = 100
    tags          = ["tag-a"]
    next_hop_type = "gateway",
    next_hop      = "global/gateways/default-internet-gateway"
  }
}'''
_VAR_ROUTES_NEXT_HOPS = {
    'gateway': 'global/gateways/default-internet-gateway',
    'instance': 'zones/europe-west1-b/test',
    'ip': '192.168.0.128',
    'ilb': 'regions/europe-west1/forwardingRules/test',
    'vpn_tunnel': 'regions/europe-west1/vpnTunnels/foo'
}


def test_simple(generic_plan_validator):
  generic_plan_validator('modules/net-vpc', 'simple.yaml', ['common.tfvars'])


def test_vpc_shared(generic_plan_validator):
  generic_plan_validator('modules/net-vpc', 'shared_vpc.yaml',
                         ['common.tfvars', 'shared_vpc.tfvars'])


def test_vpc_peering(generic_plan_validator):
  generic_plan_validator('modules/net-vpc', 'peering.yaml',
                         ['common.tfvars', 'peering.tfvars'])


def test_vpc_routes(generic_plan_summary):
  'Test vpc routes.'
  for next_hop_type, next_hop in _VAR_ROUTES_NEXT_HOPS.items():
    var_routes = _VAR_ROUTES_TEMPLATE % (next_hop_type, next_hop)
    summary = generic_plan_summary('modules/net-vpc', ['common.tfvars'],
                                   routes=var_routes)
    assert len(summary.values) == 3
    route = summary.values[f'google_compute_route.{next_hop_type}["next-hop"]']
    assert route[f'next_hop_{next_hop_type}'] == next_hop