from datetime import datetime, timedelta

import pytest

from atheneum.model import UserToken, User
from atheneum.service import patch_service


def test_patch_models():
    user = User()
    user.name = 'TestUser'
    user.version = 1
    user.last_login_time = datetime.now() - timedelta(days=1)

    user_patch = User()
    user_patch.name = 'TestUser'
    user_patch.version = 1
    user_patch.last_login_time = datetime.now()

    patched_user = patch_service.patch(user, user_patch)
    assert patched_user.version > 1
    assert patched_user.last_login_time == user_patch.last_login_time


def test_patch_of_different_types():
    user = User()
    user_token = UserToken()

    with pytest.raises(ValueError) as error_info:
        patch_service.patch(user, user_token)


def test_patch_different_ids():
    user1 = User()
    user1.id = 1

    user2 = User()
    user2.id = 2

    with pytest.raises(ValueError) as error_info:
        patch_service.patch(user1, user2)


def test_patch_different_versions():
    user1 = User()
    user1.version = 1

    user2 = User()
    user2.version = 2

    with pytest.raises(ValueError) as error_info:
        patch_service.patch(user1, user2)


def test_patch_restricted_attributes():
    user1 = User()
    user1.version = 1
    user1.name = 'Bob'

    user2 = User()
    user2.version = 1
    user2.name = 'Chris'

    with pytest.raises(ValueError) as error_info:
        patch_service.patch(user1, user2)