import importlib
from pathlib import Path
import re

import pytest


def test_legacy_python_package_forwards_only_public_config_api() -> None:
    with pytest.warns(DeprecationWarning, match="linkerhand_calibration"):
        legacy = importlib.import_module("g20_thumb_apriltag_calibration")

    current = importlib.import_module("linkerhand_calibration.product")
    assert legacy.ProductConfig is current.ProductConfig
    assert legacy.load_product_config is current.load_product_config


def test_new_and_legacy_executable_names_share_one_implementation() -> None:
    setup_text = (Path(__file__).resolve().parents[1] / "setup.py").read_text(
        encoding="utf-8"
    )
    for executable in ("calibrate_hand", "calibrate_g20_right"):
        assert re.search(
            rf'"{executable} = "\s*'
            r'"linkerhand_calibration\.runtime\.runner:main"',
            setup_text,
        )