import pytest
import os
import sys
from unittest.mock import patch

# Add src to path
sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", "src"))


class TestSettings:
    """Test cases for settings module"""

    def test_settings_import(self):
        """Test that settings module imports without errors"""
        try:
            import settings
            assert True
        except ImportError as e:
            pytest.fail(f"Failed to import settings: {e}")

    @patch.dict(os.environ, {"OPEN_ROUTER_KEY": "test_key"})
    def test_api_key_from_env(self):
        """Test that API key can be loaded from environment"""
        # This test verifies the environment variable is set
        api_key = os.getenv("OPEN_ROUTER_KEY")
        assert api_key == "test_key"

    @patch.dict(os.environ, {}, clear=True)
    def test_api_key_missing(self):
        """Test behavior when API key is missing"""
        # Verify that the environment variable is not set
        api_key = os.getenv("OPEN_ROUTER_KEY")
        assert api_key is None