# -*- coding: utf-8 -*-
# Copyright 2019 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

"""Unit tests for replication_util."""

from __future__ import print_function

import json
import os
import sys

from google.protobuf import json_format

from chromite.api.gen.config.replication_config_pb2 import (
    ReplicationConfig, FileReplicationRule, FILE_TYPE_OTHER,
    REPLICATION_TYPE_COPY)
from chromite.lib import constants
from chromite.lib import cros_test_lib
from chromite.lib import osutils
from chromite.scripts import replication_util


assert sys.version_info >= (3, 6), 'This module requires Python 3.6+'


D = cros_test_lib.Directory


class RunTest(cros_test_lib.MockTempDirTestCase):
  """Tests of the run command.

  Note that detailed tests of replication behavior should be done in
  replication_lib_unittest.
  """

  def setUp(self):
    file_layout = (D('src', ['audio_file']),)
    cros_test_lib.CreateOnDiskHierarchy(self.tempdir, file_layout)

    self.audio_path = os.path.join('src', 'audio_file')
    self.WriteTempFile(self.audio_path, '[Speaker A Settings]')

    self.PatchObject(constants, 'SOURCE_ROOT', new=self.tempdir)

  def testRun(self):
    """Basic test of the 'run' command."""
    audio_dst_path = os.path.join('dst', 'audio_file')

    replication_config = ReplicationConfig(file_replication_rules=[
        FileReplicationRule(
            source_path=self.audio_path,
            destination_path=audio_dst_path,
            file_type=FILE_TYPE_OTHER,
            replication_type=REPLICATION_TYPE_COPY,
        ),
    ])

    replication_config_path = os.path.join(self.tempdir,
                                           'replication_config.jsonpb')
    osutils.WriteFile(replication_config_path,
                      json_format.MessageToJson(replication_config))

    replication_util.main(['run', replication_config_path])

    expected_file_layout = (
        D('src', ['audio_file']),
        D('dst', ['audio_file']),
        'replication_config.jsonpb',
    )

    cros_test_lib.VerifyOnDiskHierarchy(self.tempdir, expected_file_layout)

    self.assertTempFileContents(audio_dst_path, '[Speaker A Settings]')

  def testUnknownFieldInConfig(self):
    """Test that unknown fields in the ReplicationConfig cause an error."""
    audio_dst_path = os.path.join('dst', 'audio_file')

    replication_config = ReplicationConfig(file_replication_rules=[
        FileReplicationRule(
            source_path=self.audio_path,
            destination_path=audio_dst_path,
            file_type=FILE_TYPE_OTHER,
            replication_type=REPLICATION_TYPE_COPY,
        ),
    ])

    replication_config_path = os.path.join(self.tempdir,
                                           'replication_config.jsonpb')
    replication_config_dict = json_format.MessageToDict(replication_config)
    replication_config_dict['new_field'] = 1
    osutils.WriteFile(replication_config_path,
                      json.dumps(replication_config_dict))

    with self.assertRaises(json_format.ParseError):
      replication_util.main(['run', replication_config_path])