import sys
from pathlib import Path
from more_itertools import ilen

# TODO NOTE: this wouldn't work because of an early my.config.demo import
# from my.demo import items

def test_dynamic_config_1(tmp_path: Path) -> None:
    import my.config

    class user_config:
        username  = 'user'
        data_path = f'{tmp_path}/*.json'
    my.config.demo = user_config # type: ignore[misc, assignment]

    from my.demo import items
    [item1, item2] = items()
    assert item1.username == 'user'


# exactly the same test, but using a different config, to test out the behavious w.r.t. import order
def test_dynamic_config_2(tmp_path: Path) -> None:
    # doesn't work without it!
    # because the config from test_dybamic_config_1 is cached in my.demo.demo
    del sys.modules['my.demo']

    import my.config

    class user_config:
        username  = 'user2'
        data_path = f'{tmp_path}/*.json'
    my.config.demo = user_config # type: ignore[misc, assignment]

    from my.demo import items
    [item1, item2] = items()
    assert item1.username == 'user2'


import pytest # type: ignore

@pytest.mark.skip(reason="won't work at the moment because of inheritance")
def test_dynamic_config_simplenamespace(tmp_path: Path) -> None:
    # doesn't work without it!
    # because the config from test_dybamic_config_1 is cached in my.demo.demo
    del sys.modules['my.demo']

    import my.config
    from types import SimpleNamespace

    user_config = SimpleNamespace(
        username='user3',
        data_path=f'{tmp_path}/*.json',
    )
    my.config.demo = user_config # type: ignore[misc, assignment]

    from my.demo import config
    assert config().username == 'user3'



@pytest.fixture(autouse=True)
def prepare(tmp_path: Path):
    (tmp_path / 'data.json').write_text('''
[
    {"key1": 1},
    {"key2": 2}
]
''')
    yield