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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

import os
from unittest import mock
from unittest.mock import Mock

import mozunit
import pytest
import requests
from mach.config import ConfigSettings
from mach.decorators import SettingsProvider
from mach.telemetry import (
    initialize_telemetry_setting,
    record_telemetry_settings,
    resolve_is_employee,
)

from mozbuild.settings import TelemetrySettings


@SettingsProvider
class OtherSettings:
    config_settings = [("foo.bar", "int", "", 1), ("build.abc", "string", "", "")]


def record_enabled_telemetry(mozbuild_path, settings):
    record_telemetry_settings(settings, mozbuild_path, True)


@pytest.fixture
def settings():
    s = ConfigSettings()
    s.register_provider(TelemetrySettings)
    s.register_provider(OtherSettings)
    return s


def load_settings_file(mozbuild_path, settings):
    settings.load_file(os.path.join(mozbuild_path, "machrc"))


def write_config(mozbuild_path, contents):
    with open(os.path.join(mozbuild_path, "machrc"), "w") as f:
        f.write(contents)


def test_nonexistent(tmpdir, settings):
    record_enabled_telemetry(tmpdir, settings)
    load_settings_file(tmpdir, settings)
    assert settings.mach_telemetry.is_enabled


def test_file_exists_no_build_section(tmpdir, settings):
    write_config(
        tmpdir,
        """[foo]
bar = 2
""",
    )
    record_enabled_telemetry(tmpdir, settings)
    load_settings_file(tmpdir, settings)
    assert settings.mach_telemetry.is_enabled
    assert settings.foo.bar == 2


def test_existing_build_section(tmpdir, settings):
    write_config(
        tmpdir,
        """[foo]
bar = 2

[build]
abc = xyz
""",
    )
    record_enabled_telemetry(tmpdir, settings)
    load_settings_file(tmpdir, settings)
    assert settings.mach_telemetry.is_enabled
    assert settings.build.abc == "xyz"
    assert settings.foo.bar == 2


def test_malformed_file(tmpdir, settings):
    """Ensure that a malformed config file doesn't cause breakage."""
    write_config(
        tmpdir,
        """[foo
bar = 1
""",
    )
    record_enabled_telemetry(tmpdir, settings)
    # Can't load_settings config, it will not have been written!


def _initialize_telemetry(settings, is_employee, contributor_prompt_response=None):
    with mock.patch(
        "mach.telemetry.resolve_is_employee", return_value=is_employee
    ), mock.patch(
        "mach.telemetry.prompt_telemetry_message_contributor",
        return_value=contributor_prompt_response,
    ) as prompt_mock, mock.patch(
        "subprocess.run", return_value=Mock(returncode=0)
    ), mock.patch(
        "mach.config.ConfigSettings"
    ):
        initialize_telemetry_setting(settings, "", "")
        return prompt_mock.call_count == 1


def test_initialize_new_contributor_deny_telemetry(settings):
    did_prompt = _initialize_telemetry(settings, False, False)
    assert did_prompt
    assert not settings.mach_telemetry.is_enabled
    assert settings.mach_telemetry.is_set_up
    assert settings.mach_telemetry.is_done_first_time_setup


def test_initialize_new_contributor_allow_telemetry(settings):
    did_prompt = _initialize_telemetry(settings, False, True)
    assert did_prompt
    assert settings.mach_telemetry.is_enabled
    assert settings.mach_telemetry.is_set_up
    assert settings.mach_telemetry.is_done_first_time_setup


def test_initialize_new_employee(settings):
    did_prompt = _initialize_telemetry(settings, True)
    assert not did_prompt
    assert settings.mach_telemetry.is_enabled
    assert settings.mach_telemetry.is_set_up
    assert settings.mach_telemetry.is_done_first_time_setup


def test_initialize_noop_when_telemetry_disabled_env(monkeypatch):
    monkeypatch.setenv("DISABLE_TELEMETRY", "1")
    with mock.patch("mach.telemetry.record_telemetry_settings") as record_mock:
        did_prompt = _initialize_telemetry(None, False)
        assert record_mock.call_count == 0
        assert not did_prompt


def test_initialize_noop_when_request_error(settings):
    with mock.patch(
        "mach.telemetry.resolve_is_employee",
        side_effect=requests.exceptions.RequestException("Unlucky"),
    ), mock.patch("mach.telemetry.record_telemetry_settings") as record_mock:
        initialize_telemetry_setting(None, None, None)
        assert record_mock.call_count == 0


def test_resolve_is_employee():
    def mock_and_run(is_employee_bugzilla, is_employee_vcs):
        with mock.patch(
            "mach.telemetry.resolve_is_employee_by_credentials",
            return_value=is_employee_bugzilla,
        ), mock.patch(
            "mach.telemetry.resolve_is_employee_by_vcs", return_value=is_employee_vcs
        ):
            return resolve_is_employee(None)

    assert not mock_and_run(False, False)
    assert not mock_and_run(False, True)
    assert not mock_and_run(False, None)
    assert mock_and_run(True, False)
    assert mock_and_run(True, True)
    assert mock_and_run(True, None)
    assert not mock_and_run(None, False)
    assert mock_and_run(None, True)


if __name__ == "__main__":
    mozunit.main()