import pytest
from pathlib import Path
import tempfile

from config_auditor.utils import (
    find_config_file,
    get_exit_code,
    validate_path,
)


class TestUtils:
    def test_find_config_file_exists(self):
        with tempfile.TemporaryDirectory() as tmpdir:
            (Path(tmpdir) / "package.json").write_text("{}")

            result = find_config_file(Path(tmpdir), ["package.json"])

            assert result is not None
            assert result.name == "package.json"

    def test_find_config_file_not_exists(self):
        with tempfile.TemporaryDirectory() as tmpdir:
            result = find_config_file(Path(tmpdir), ["nonexistent.json"])

            assert result is None

    def test_find_config_file_in_parent(self):
        with tempfile.TemporaryDirectory() as tmpdir:
            subdir = Path(tmpdir) / "subdir"
            subdir.mkdir()
            (Path(tmpdir) / "package.json").write_text("{}")

            result = find_config_file(subdir, ["package.json"])

            assert result is not None

    def test_get_exit_code_no_issues(self):
        result = get_exit_code(0, 0)
        assert result == 0

    def test_get_exit_code_has_issues(self):
        result = get_exit_code(5, 0)
        assert result == 4

    def test_get_exit_code_critical(self):
        result = get_exit_code(3, 2)
        assert result == 4

    def test_validate_path_exists(self):
        with tempfile.TemporaryDirectory() as tmpdir:
            result = validate_path(tmpdir)
            assert result.exists()

    def test_validate_path_not_exists(self):
        with pytest.raises(SystemExit) as excinfo:
            validate_path("/nonexistent/path")
        assert excinfo.value.code == 2

    def test_validate_path_is_file(self):
        with tempfile.NamedTemporaryFile() as f:
            with pytest.raises(SystemExit) as excinfo:
                validate_path(f.name)
            assert excinfo.value.code == 2