import os
from datetime import date

import pytest


@pytest.fixture(autouse=True)
def mock_client_setup(mocker):
    mocker.patch("telethon.client.auth.AuthMethods.start")


def test_setup_fails_clear_session_file(get_lazy_module, tmp_path, mocker):
    start = mocker.patch("telethon.client.auth.AuthMethods.start")
    start.side_effect = Exception("Test exception")

    # make sure the default setup file is created
    session_file = tmp_path / "test.session"

    lazy_module = get_lazy_module("telethon_extractor")

    with pytest.raises(Exception):
        lazy_module.load({"telethon_extractor": {"session_file": str(session_file), "api_id": 123, "api_hash": "ABC"}})

    assert session_file.exists()
    assert f"telethon-{date.today().strftime('%Y-%m-%d')}" in lazy_module._instance.session_file
    assert os.path.exists(lazy_module._instance.session_file + ".session")