import unittest
from pathlib import Path

from javis.config.settings import ConfigurationError, Settings, default_data_dir


class SettingsTests(unittest.TestCase):
    def test_windows_default_uses_local_app_data(self) -> None:
        result = default_data_dir(
            {"LOCALAPPDATA": "C:\\Local"},
            platform_name="nt",
            home=Path("C:\\Users\\test"),
        )
        self.assertEqual(result, Path("C:\\Local") / "Javis")

    def test_posix_default_uses_xdg_data_home(self) -> None:
        result = default_data_dir(
            {"XDG_DATA_HOME": "/tmp/data"},
            platform_name="posix",
            home=Path("/home/test"),
        )
        self.assertEqual(result, Path("/tmp/data/javis"))

    def test_explicit_data_dir_must_be_absolute(self) -> None:
        with self.assertRaises(ConfigurationError):
            Settings.from_env({"JAVIS_DATA_DIR": "relative"})

    def test_provider_url_must_remain_local(self) -> None:
        with self.assertRaises(ConfigurationError):
            Settings.from_env(
                {
                    "JAVIS_DATA_DIR": str(Path.cwd()),
                    "JAVIS_OLLAMA_URL": "https://example.com",
                }
            )


if __name__ == "__main__":
    unittest.main()