# -*- coding: utf-8 -*-
# Copyright 2018 Google Inc. 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.
"""Integration tests for bucketpolicyonly command."""

from __future__ import absolute_import
import re

from gslib.cs_api_map import ApiSelector
import gslib.tests.testcase as testcase
from gslib.tests.util import ObjectToURI as suri
from gslib.tests.util import unittest
from gslib.utils.retry_util import Retry


class TestBucketPolicyOnly(testcase.GsUtilIntegrationTestCase):
  """Integration tests for bucketpolicyonly command."""

  _set_bpo_cmd = ['bucketpolicyonly', 'set']
  _get_bpo_cmd = ['bucketpolicyonly', 'get']


  def _AssertEnabled(self, bucket_uri, value):
    stdout = self.RunGsUtil(
        self._get_bpo_cmd + [suri(bucket_uri)], return_stdout=True)
    bucket_policy_only_re = re.compile(
       r'^\s*Enabled:\s+(?P<enabled_val>.+)$',
       re.MULTILINE)
    bucket_policy_only_match = re.search(bucket_policy_only_re, stdout)
    bucket_policy_only_val = bucket_policy_only_match.group('enabled_val')
    self.assertEqual(str(value), bucket_policy_only_val)

  def test_off_on_default_buckets(self):
    if self.test_api == ApiSelector.XML:
      return unittest.skip(
          'XML API has no concept of Bucket Policy Only')
    bucket_uri = self.CreateBucket()
    self._AssertEnabled(bucket_uri, False)

  def test_turning_off_on_enabled_buckets(self):
    if self.test_api == ApiSelector.XML:
      return unittest.skip(
          'XML API has no concept of Bucket Policy Only')
    bucket_uri = self.CreateBucket(bucket_policy_only=True,
                                   prefer_json_api=True)
    self._AssertEnabled(bucket_uri, True)

    self.RunGsUtil(self._set_bpo_cmd + ['off', suri(bucket_uri)])
    self._AssertEnabled(bucket_uri, False)

  def test_turning_on(self):
    if self.test_api == ApiSelector.XML:
      return unittest.skip(
          'XML API has no concept of Bucket Policy Only')

    bucket_uri = self.CreateBucket()
    self.RunGsUtil(self._set_bpo_cmd + ['on', suri(bucket_uri)])

    self._AssertEnabled(bucket_uri, True)

  def test_turning_on_and_off(self):
    if self.test_api == ApiSelector.XML:
      return unittest.skip(
          'XML API has no concept of Bucket Policy Only')

    bucket_uri = self.CreateBucket()

    self.RunGsUtil(self._set_bpo_cmd + ['on', suri(bucket_uri)])
    self._AssertEnabled(bucket_uri, True)

    self.RunGsUtil(self._set_bpo_cmd + ['off', suri(bucket_uri)])
    self._AssertEnabled(bucket_uri, False)

  def testTooFewArgumentsFails(self):
    """Ensures bucketpolicyonly commands fail with too few arguments."""
    # No arguments for set, but valid subcommand.
    stderr = self.RunGsUtil(self._set_bpo_cmd, return_stderr=True,
                            expected_status=1)
    self.assertIn('command requires at least', stderr)

    # No arguments for get, but valid subcommand.
    stderr = self.RunGsUtil(self._get_bpo_cmd, return_stderr=True,
                            expected_status=1)
    self.assertIn('command requires at least', stderr)

    # Neither arguments nor subcommand.
    stderr = self.RunGsUtil(['bucketpolicyonly'], return_stderr=True,
                            expected_status=1)
    self.assertIn('command requires at least', stderr)
