import tempfile

from patternforge.config import Config


class TestConfig:
    def test_default_initialization(self) -> None:
        config = Config()
        assert config.patterns_dir.exists()
        assert config.templates_dir.exists()

    def test_load_from_file(self) -> None:
        with tempfile.NamedTemporaryFile(mode="w", suffix=".yaml", delete=False) as f:
            f.write("language: python\nindent_size: 2\n")
            f.flush()
            config = Config.load(f.name)
            assert config.get("language") == "python"
            assert config.get("indent_size") == 2

    def test_set_and_get(self) -> None:
        config = Config()
        config.set("test_key", "test_value")
        assert config.get("test_key") == "test_value"

    def test_to_dict(self) -> None:
        config = Config()
        data = config.to_dict()
        assert "patterns_dir" in data
        assert "templates_dir" in data

    def test_save(self) -> None:
        with tempfile.TemporaryDirectory() as tmpdir:
            config = Config()
            config.set("custom_setting", "value")
            config.save(f"{tmpdir}/config.yaml")
            new_config = Config.load(f"{tmpdir}/config.yaml")
            assert new_config.get("custom_setting") == "value"