"""Make `presa_mano.*` importable in tests without installing the package."""
from __future__ import annotations

import sys
from pathlib import Path

_SRC = Path(__file__).resolve().parent.parent / "src"
if str(_SRC) not in sys.path:
    sys.path.insert(0, str(_SRC))

import pytest

_CFG_PATH = Path(__file__).resolve().parent.parent / "config.yaml"


@pytest.fixture(autouse=True)
def _restore_config_yaml():
    """Snapshot/restore config.yaml + in-memory singleton.
    Any test that triggers update_config() would otherwise leave the file
    cosmetically reformatted (compact flow-style -> block-style) AND/OR
    semantically mutated. This fixture keeps the working tree clean."""
    if not _CFG_PATH.exists():
        yield
        return
    snapshot = _CFG_PATH.read_bytes()
    try:
        yield
    finally:
        _CFG_PATH.write_bytes(snapshot)
        # Reset in-memory singleton so subsequent tests re-read disk
        try:
            from presa_mano import config as _cfg_mod
            _cfg_mod._STATE["config"] = None  # type: ignore[attr-defined]
        except Exception:
            pass  # if internals change, we still get the disk reset