from unittest.mock import call

import pytest

from app import invite_api_client, service_api_client, user_api_client
from app.notify_client.models import User
from tests.conftest import SERVICE_ONE_ID, api_user_pending, fake_uuid

user_id = fake_uuid()


def test_client_gets_all_users_for_service(
    mocker,
    fake_uuid,
):

    user_api_client.max_failed_login_count = 99  # doesn't matter for this test
    mock_get = mocker.patch(
        'app.notify_client.user_api_client.UserApiClient.get',
        return_value={'data': [
            {'id': fake_uuid},
        ]}
    )

    users = user_api_client.get_users_for_service(SERVICE_ONE_ID)

    mock_get.assert_called_once_with('/service/{}/users'.format(SERVICE_ONE_ID))
    assert len(users) == 1
    assert users[0].id == fake_uuid


def test_client_returns_count_of_users_with_manage_service(
    app_,
    client,
    mocker,
    fake_uuid,
):

    def _service_one_user_with_permissions(*permissions):
        return User({'permissions': {SERVICE_ONE_ID: list(permissions)}})

    mock_get_users = mocker.patch(
        'app.notify_client.user_api_client.UserApiClient.get_users_for_service',
        return_value=[
            _service_one_user_with_permissions('manage_service', 'view_activity'),
            _service_one_user_with_permissions('manage_service'),
            _service_one_user_with_permissions('view_activity'),
            _service_one_user_with_permissions('manage_templates'),
        ]
    )

    mocker.patch(
        'app.notify_client.models._get_service_id_from_view_args',
        return_value=SERVICE_ONE_ID,
    )

    assert user_api_client.get_count_of_users_with_permission(
        SERVICE_ONE_ID,
        'manage_service'
    ) == 2

    assert user_api_client.get_count_of_users_with_permission(
        SERVICE_ONE_ID,
        'manage_templates'
    ) == 1

    assert mock_get_users.call_args_list == [
        call(SERVICE_ONE_ID),
        call(SERVICE_ONE_ID)
    ]


def test_client_uses_correct_find_by_email(mocker, api_user_active):

    expected_url = '/user/email'
    expected_params = {'email': api_user_active.email_address}

    user_api_client.max_failed_login_count = 1  # doesn't matter for this test
    mock_get = mocker.patch('app.notify_client.user_api_client.UserApiClient.get')

    user_api_client.get_user_by_email(api_user_active.email_address)

    mock_get.assert_called_once_with(expected_url, params=expected_params)


def test_client_only_updates_allowed_attributes(mocker):
    mocker.patch('app.notify_client.current_user', id='1')
    with pytest.raises(TypeError) as error:
        user_api_client.update_user_attribute('user_id', id='1')
    assert str(error.value) == 'Not allowed to update user attributes: id'


def test_client_updates_password_separately(mocker, api_user_active):
    expected_url = '/user/{}/update-password'.format(api_user_active.id)
    expected_params = {'_password': 'newpassword'}
    user_api_client.max_failed_login_count = 1  # doesn't matter for this test
    mock_update_password = mocker.patch('app.notify_client.user_api_client.UserApiClient.post')

    user_api_client.update_password(api_user_active.id, expected_params['_password'])
    mock_update_password.assert_called_once_with(expected_url, data=expected_params)


def test_client_activates_if_pending(mocker, api_user_pending):
    mock_post = mocker.patch('app.notify_client.user_api_client.UserApiClient.post')
    user_api_client.max_failed_login_count = 1  # doesn't matter for this test

    user_api_client.activate_user(api_user_pending)

    mock_post.assert_called_once_with('/user/{}/activate'.format(api_user_pending.id), data=None)


def test_client_doesnt_activate_if_already_active(mocker, api_user_active):
    mock_post = mocker.patch('app.notify_client.user_api_client.UserApiClient.post')

    user_api_client.activate_user(api_user_active)

    assert not mock_post.called


def test_client_passes_admin_url_when_sending_email_auth(
    app_,
    mocker,
    fake_uuid,
):
    mock_post = mocker.patch('app.notify_client.user_api_client.UserApiClient.post')

    user_api_client.send_verify_code(fake_uuid, 'email', 'ignored@example.com')

    mock_post.assert_called_once_with(
        '/user/{}/email-code'.format(fake_uuid),
        data={
            'to': 'ignored@example.com',
            'email_auth_link_host': 'http://localhost:6012',
        }
    )


def test_client_converts_admin_permissions_to_db_permissions_on_edit(app_, mocker):
    mock_post = mocker.patch('app.notify_client.user_api_client.UserApiClient.post')

    user_api_client.set_user_permissions('user_id', 'service_id', permissions={'send_messages', 'view_activity'})

    assert sorted(mock_post.call_args[1]['data'], key=lambda x: x['permission']) == sorted([
        {'permission': 'send_texts'},
        {'permission': 'send_emails'},
        {'permission': 'send_letters'},
        {'permission': 'view_activity'},
    ], key=lambda x: x['permission'])


def test_client_converts_admin_permissions_to_db_permissions_on_add_to_service(app_, mocker):
    mock_post = mocker.patch('app.notify_client.user_api_client.UserApiClient.post', return_value={'data': {}})

    user_api_client.add_user_to_service('service_id', 'user_id', permissions={'send_messages', 'view_activity'})

    assert sorted(mock_post.call_args[1]['data'], key=lambda x: x['permission']) == sorted([
        {'permission': 'send_texts'},
        {'permission': 'send_emails'},
        {'permission': 'send_letters'},
        {'permission': 'view_activity'},
    ], key=lambda x: x['permission'])


@pytest.mark.parametrize(
    (
        'expected_cache_get_calls,'
        'cache_value,'
        'expected_api_calls,'
        'expected_cache_set_calls,'
        'expected_return_value,'
    ),
    [
        (
            [
                call('user-{}'.format(user_id))
            ],
            b'{"data": "from cache"}',
            [],
            [],
            'from cache',
        ),
        (
            [
                call('user-{}'.format(user_id))
            ],
            None,
            [
                call('/user/{}'.format(user_id))
            ],
            [
                call(
                    'user-{}'.format(user_id),
                    '{"data": "from api"}',
                    ex=604800
                )
            ],
            'from api',
        ),
    ]
)
def test_returns_value_from_cache(
    app_,
    mocker,
    expected_cache_get_calls,
    cache_value,
    expected_return_value,
    expected_api_calls,
    expected_cache_set_calls,
):

    mock_redis_get = mocker.patch(
        'app.notify_client.RedisClient.get',
        return_value=cache_value,
    )
    mock_api_get = mocker.patch(
        'app.notify_client.NotifyAdminAPIClient.get',
        return_value={'data': 'from api'},
    )
    mock_redis_set = mocker.patch(
        'app.notify_client.RedisClient.set',
    )
    mock_model = mocker.patch(
        'app.notify_client.models.User.__init__',
        return_value=None,
    )

    user_api_client.get_user(user_id)

    mock_model.assert_called_once_with(
        expected_return_value,
        max_failed_login_count=10,
    )
    assert mock_redis_get.call_args_list == expected_cache_get_calls
    assert mock_api_get.call_args_list == expected_api_calls
    assert mock_redis_set.call_args_list == expected_cache_set_calls


@pytest.mark.parametrize('client, method, extra_args, extra_kwargs', [
    (user_api_client, 'add_user_to_service', [SERVICE_ONE_ID, fake_uuid(), []], {}),
    (user_api_client, 'update_user_attribute', [user_id], {}),
    (user_api_client, 'reset_failed_login_count', [user_id], {}),
    (user_api_client, 'update_user_attribute', [user_id], {}),
    (user_api_client, 'update_password', [user_id, 'hunter2'], {}),
    (user_api_client, 'verify_password', [user_id, 'hunter2'], {}),
    (user_api_client, 'check_verify_code', [user_id, '', ''], {}),
    (user_api_client, 'add_user_to_service', [SERVICE_ONE_ID, user_id, []], {}),
    (user_api_client, 'add_user_to_organisation', [fake_uuid(), user_id], {}),
    (user_api_client, 'set_user_permissions', [user_id, SERVICE_ONE_ID, []], {}),
    (user_api_client, 'activate_user', [api_user_pending(fake_uuid())], {}),
    (service_api_client, 'remove_user_from_service', [SERVICE_ONE_ID, user_id], {}),
    (service_api_client, 'create_service', ['', '', 0, False, user_id, fake_uuid()], {}),
    (invite_api_client, 'accept_invite', [SERVICE_ONE_ID, user_id], {}),
])
def test_deletes_user_cache(
    app_,
    mock_get_user,
    mocker,
    client,
    method,
    extra_args,
    extra_kwargs,
):
    mocker.patch('app.notify_client.current_user', id='1')
    mock_redis_delete = mocker.patch('app.notify_client.RedisClient.delete')
    mock_request = mocker.patch('notifications_python_client.base.BaseAPIClient.request')

    getattr(client, method)(*extra_args, **extra_kwargs)

    assert call('user-{}'.format(user_id)) in mock_redis_delete.call_args_list
    assert len(mock_request.call_args_list) == 1
