from pathlib import Path

import pytest

from mka.application.config import AppSettings, ConfigurationError


def test_settings_require_whisper_model() -> None:
    settings = AppSettings(data_root=Path("runs"), whisper_model=None)

    with pytest.raises(ConfigurationError, match="MKA_WHISPER_MODEL"):
        settings.validate_for_processing()


def test_settings_reject_missing_whisper_model(tmp_path: Path) -> None:
    settings = AppSettings(
        data_root=tmp_path / "runs",
        whisper_model=tmp_path / "missing.bin",
    )

    with pytest.raises(ConfigurationError, match="does not exist"):
        settings.validate_for_processing()


def test_settings_accept_valid_native_configuration(tmp_path: Path) -> None:
    model = tmp_path / "model.bin"
    model.write_bytes(b"model")
    settings = AppSettings(data_root=tmp_path / "runs", whisper_model=model)

    settings.validate_for_processing()