#!/usr/bin/env python3
#
# Copyright 2022, The Android Open Source Project
#
# 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.

"""Unittests for metrics_utils."""

# pylint: disable=invalid-name

from io import StringIO
import sys
import unittest
from unittest import mock

from atest.metrics import metrics_base
from atest.metrics import metrics_utils
from atest.proto import internal_user_log_pb2


class MetricsUtilsUnittests(unittest.TestCase):
  """Unit tests for metrics_utils.py"""

  def setUp(self) -> None:
    self.maxDiff = None

  @mock.patch('atest.metrics.metrics_base.get_user_type')
  def test_print_data_collection_notice(self, mock_get_user_type):
    """Test method print_data_collection_notice."""

    # get_user_type return 1(external).
    mock_get_user_type.return_value = 1
    capture_output = StringIO()
    sys.stdout = capture_output
    metrics_utils.print_data_collection_notice(colorful=False)
    sys.stdout = sys.__stdout__
    self.assertEqual(capture_output.getvalue(), "")

    # get_user_type return 0(internal).
    red = '31m'
    green = '32m'
    start = '\033[1;'
    end = '\033[0m'
    mock_get_user_type.return_value = 0
    notice_str = (
        f'\n==================\n{start}{red}Notice:{end}\n'
        f'{start}{green} We collect usage statistics (including usernames) '
        'in accordance with our '
        'Content Licenses (https://source.android.com/setup/start/licenses), '
        'Contributor License Agreement (https://cla.developers.google.com/), '
        'Privacy Policy (https://policies.google.com/privacy) and '
        f'Terms of Service (https://policies.google.com/terms).{end}'
        '\n==================\n\n'
    )
    capture_output = StringIO()
    sys.stdout = capture_output
    metrics_utils.print_data_collection_notice()
    sys.stdout = sys.__stdout__
    self.assertEqual(capture_output.getvalue(), notice_str)

  def test_send_start_event(self):
    metrics_base.MetricsBase.tool_name = 'test_tool'
    metrics_base.MetricsBase.user_type = metrics_base.INTERNAL_USER
    fake_cc = FakeClearcutClient()
    metrics_base.MetricsBase.cc = fake_cc

    metrics_utils.send_start_event(
        command_line='test_command',
        test_references=['test'],
        cwd='cwd',
        operating_system='test system',
        source_root='test_source',
        hostname='test_host',
    )

    logged_events = fake_cc.get_logged_events()
    expected_start_event = (
        internal_user_log_pb2.AtestLogEventInternal.AtestStartEvent(
            command_line='test_command',
            test_references=['test'],
            cwd='cwd',
            os='test system',
            source_root='test_source',
            hostname='test_host',
        )
    )
    self.assertEqual(len(logged_events), 1)
    self.assertEqual(
        expected_start_event,
        internal_user_log_pb2.AtestLogEventInternal.FromString(
            logged_events[0].source_extension
        ).atest_start_event,
    )


class FakeClearcutClient:

  def __init__(self):
    self.logged_event = []

  def log(self, event):
    self.logged_event.extend([event])

  def get_logged_events(self):
    return self.logged_event