# Copyright 2021 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_audit_config(plan_runner):
  "Test audit config."
  iam_audit_config = '{allServices={DATA_READ=[], DATA_WRITE=["user:me@example.org"]}}'
  _, resources = plan_runner(FIXTURES_DIR, iam_audit_config=iam_audit_config)
  assert len(resources) == 1
  log_types = set(r['log_type']
                  for r in resources[0]['values']['audit_log_config'])
  assert log_types == set(['DATA_READ', 'DATA_WRITE'])


def test_iam_additive_members(plan_runner):
  "Test IAM additive members."
  iam = (
      '{"user:one@example.org" = ["roles/owner"],'
      '"user:two@example.org" = ["roles/owner", "roles/editor"]}'
  )
  _, resources = plan_runner(FIXTURES_DIR, iam_additive_members=iam)
  roles = set((r['values']['role'], r['values']['member'])
              for r in resources if r['type'] == 'google_organization_iam_member')
  assert roles == set([
      ('roles/owner', 'user:one@example.org'),
      ('roles/owner', 'user:two@example.org'),
      ('roles/editor', 'user:two@example.org')
  ])


def test_policy_boolean(plan_runner):
  "Test boolean org policy."
  policy_boolean = '{policy-a = true, policy-b = false, policy-c = null}'
  _, resources = plan_runner(FIXTURES_DIR, policy_boolean=policy_boolean)
  assert len(resources) == 3
  constraints = set(r['values']['constraint'] for r in resources)
  assert set(constraints) == set(['policy-a', 'policy-b', 'policy-c'])
  policies = []
  for resource in resources:
    for policy in ('boolean_policy', 'restore_policy'):
      value = resource['values'][policy]
      if value:
        policies.append((policy,) + value[0].popitem())
  assert set(policies) == set([
      ('boolean_policy', 'enforced', True),
      ('boolean_policy', 'enforced', False),
      ('restore_policy', 'default', True)])


def test_policy_list(plan_runner):
  "Test list org policy."
  policy_list = (
      '{'
      'policy-a = {inherit_from_parent = true, suggested_value = null, status = true, values = []}, '
      'policy-b = {inherit_from_parent = null, suggested_value = "foo", status = false, values = ["bar"]}, '
      'policy-c = {inherit_from_parent = null, suggested_value = true, status = null, values = null}'
      '}'
  )
  _, resources = plan_runner(FIXTURES_DIR, policy_list=policy_list)
  assert len(resources) == 3
  values = [r['values'] for r in resources]
  assert [r['constraint']
          for r in values] == ['policy-a', 'policy-b', 'policy-c']
  assert values[0]['list_policy'][0]['allow'] == [
      {'all': True, 'values': None}]
  assert values[1]['list_policy'][0]['deny'] == [
      {'all': False, 'values': ["bar"]}]
  assert values[2]['restore_policy'] == [{'default': True}]


def test_firweall_policy(plan_runner):
  "Test boolean folder policy."
  policy = """
  {
    policy1 = {
      allow-ingress = {
        description = ""
        direction   = "INGRESS"
        action      = "allow"
        priority    = 100
        ranges      = ["10.0.0.0/8"]
        ports = {
          tcp = ["22"]
        }
        target_service_accounts = null
        target_resources        = null
        logging                 = false
      }
      deny-egress = {
        description = ""
        direction   = "EGRESS"
        action      = "deny"
        priority    = 200
        ranges      = ["192.168.0.0/24"]
        ports = {
          tcp = ["443"]
        }
        target_service_accounts = null
        target_resources        = null
        logging                 = false
      }
    }
  }
  """
  attachment = '{ iap_policy = "policy1" }'
  _, resources = plan_runner(FIXTURES_DIR, firewall_policies=policy,
                             firewall_policy_attachments=attachment)
  assert len(resources) == 4

  policies = [r for r in resources
           if r['type'] == 'google_compute_organization_security_policy']
  assert len(policies) == 1

  rules = [r for r in resources
           if r['type'] == 'google_compute_organization_security_policy_rule']
  assert len(rules) == 2

  rule_values = []
  for rule in rules:
    name = rule['name']
    index = rule['index']
    action = rule['values']['action']
    direction = rule['values']['direction']
    priority = rule['values']['priority']
    config = rule['values']['match']
    assert len(config) == 1
    config = config[0]['config']
    rule_values.append((name, index, action, direction, priority, config))

  assert sorted(rule_values) == sorted([
    ('rule', 'policy1-allow-ingress', 'allow', 'INGRESS', 100,[
      {
        'dest_ip_ranges': None,
        'layer4_config': [{'ip_protocol': 'tcp', 'ports': ['22']}],
        'src_ip_ranges': ['10.0.0.0/8']
      }]),
    ('rule', 'policy1-deny-egress', 'deny', 'EGRESS', 200, [
      {
        'dest_ip_ranges': ['192.168.0.0/24'],
        'layer4_config': [{'ip_protocol': 'tcp', 'ports': ['443']}],
        'src_ip_ranges': None
      }])
  ])