# Copyright 2020 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.


import os
import pytest


FIXTURES_DIR = os.path.join(os.path.dirname(__file__), 'fixture')


def test_defaults(plan_runner):
    "Test variable defaults."
    _, resources = plan_runner(FIXTURES_DIR)
    assert len(resources) == 1
    mig = resources[0]
    assert mig['type'] == 'google_compute_instance_group_manager'
    assert mig['values']['target_size'] == 2
    assert mig['values']['zone']
    _, resources = plan_runner(FIXTURES_DIR, regional='true')
    assert len(resources) == 1
    mig = resources[0]
    assert mig['type'] == 'google_compute_region_instance_group_manager'
    assert mig['values']['target_size'] == 2
    assert mig['values']['region']


def test_health_check(plan_runner):
    "Test health check resource."
    health_check_config = '{type="tcp", check={port=80}, config=null, logging=false}'
    _, resources = plan_runner(
        FIXTURES_DIR, health_check_config=health_check_config)
    assert len(resources) == 2
    assert any(r['type'] == 'google_compute_health_check' for r in resources)


def test_autoscaler(plan_runner):
    "Test autoscaler resource."
    autoscaler_config = (
        '{'
        'max_replicas=3, min_replicas=1, cooldown_period=60,'
        'cpu_utilization_target=65, load_balancing_utilization_target=null,'
        'metric=null'
        '}'
    )
    _, resources = plan_runner(
        FIXTURES_DIR, autoscaler_config=autoscaler_config)
    assert len(resources) == 2
    autoscaler = resources[0]
    assert autoscaler['type'] == 'google_compute_autoscaler'
    assert autoscaler['values']['autoscaling_policy'] == [{
        'cooldown_period': 60,
        'cpu_utilization': [{'target': 65}],
        'load_balancing_utilization': [],
        'max_replicas': 3,
        'metric': [],
        'min_replicas': 1,
        'mode': 'ON'
    }]
    _, resources = plan_runner(
        FIXTURES_DIR, autoscaler_config=autoscaler_config, regional='true')
    assert len(resources) == 2
    autoscaler = resources[0]
    assert autoscaler['type'] == 'google_compute_region_autoscaler'