"""Tests for security hardening: JWT secret startup check, CORS config, credential handling."""

import os
from unittest.mock import patch

import pytest


class TestJWTSecretStartupCheck:
    """Test the startup guard that refuses default JWT secret in non-dev environments."""

    def test_default_secret_in_production_raises(self):
        """Starting with default secret and APP_ENV=production must raise RuntimeError."""
        with patch.dict(os.environ, {"APP_ENV": "production"}):
            # Reload config to pick up the new APP_ENV
            import importlib
            import SPARC.config
            importlib.reload(SPARC.config)

            from SPARC.auth import _DEFAULT_JWT_SECRET, check_jwt_secret
            # Patch JWT_SECRET to the default
            with patch("SPARC.auth.JWT_SECRET", _DEFAULT_JWT_SECRET):
                with pytest.raises(RuntimeError, match="FATAL.*JWT_SECRET"):
                    check_jwt_secret()

            # Restore config
            with patch.dict(os.environ, {"APP_ENV": "development"}):
                importlib.reload(SPARC.config)

    def test_default_secret_in_development_succeeds(self):
        """Starting with default secret and APP_ENV=development must not raise."""
        with patch.dict(os.environ, {"APP_ENV": "development"}):
            import importlib
            import SPARC.config
            importlib.reload(SPARC.config)

            from SPARC.auth import _DEFAULT_JWT_SECRET, check_jwt_secret
            with patch("SPARC.auth.JWT_SECRET", _DEFAULT_JWT_SECRET):
                # Should not raise
                check_jwt_secret()

            # Restore
            importlib.reload(SPARC.config)

    def test_custom_secret_in_production_succeeds(self):
        """Starting with a custom secret in production must not raise."""
        with patch.dict(os.environ, {"APP_ENV": "production"}):
            import importlib
            import SPARC.config
            importlib.reload(SPARC.config)

            from SPARC.auth import check_jwt_secret
            with patch("SPARC.auth.JWT_SECRET", "my-secure-random-secret-abc123"):
                # Should not raise
                check_jwt_secret()

            with patch.dict(os.environ, {"APP_ENV": "development"}):
                importlib.reload(SPARC.config)

    def test_default_secret_unset_env_succeeds(self):
        """When APP_ENV is unset (defaults to development), default secret is allowed."""
        with patch.dict(os.environ, {}, clear=False):
            # Remove APP_ENV if present
            env = os.environ.copy()
            env.pop("APP_ENV", None)
            with patch.dict(os.environ, env, clear=True):
                import importlib
                import SPARC.config
                importlib.reload(SPARC.config)

                from SPARC.auth import _DEFAULT_JWT_SECRET, check_jwt_secret
                with patch("SPARC.auth.JWT_SECRET", _DEFAULT_JWT_SECRET):
                    # Should not raise (defaults to development)
                    check_jwt_secret()

                with patch.dict(os.environ, {"APP_ENV": "development"}):
                    importlib.reload(SPARC.config)


class TestCORSConfig:
    """Test that CORS origins are configurable via environment variable."""

    def test_default_cors_origins(self):
        """When CORS_ORIGINS is unset, defaults to localhost origins."""
        with patch.dict(os.environ, {"CORS_ORIGINS": ""}):
            import importlib
            import SPARC.config
            importlib.reload(SPARC.config)
            assert SPARC.config.cors_origins == [
                "http://localhost:3000",
                "http://localhost:5173",
            ]

    def test_custom_cors_origins(self):
        """Setting CORS_ORIGINS configures allowed origins."""
        with patch.dict(os.environ, {"CORS_ORIGINS": "https://sparc.example.com,https://app.example.com"}):
            import importlib
            import SPARC.config
            importlib.reload(SPARC.config)
            assert SPARC.config.cors_origins == [
                "https://sparc.example.com",
                "https://app.example.com",
            ]
            # Restore
            with patch.dict(os.environ, {"CORS_ORIGINS": ""}):
                importlib.reload(SPARC.config)

    def test_single_cors_origin(self):
        """A single origin without comma works correctly."""
        with patch.dict(os.environ, {"CORS_ORIGINS": "https://sparc.example.com"}):
            import importlib
            import SPARC.config
            importlib.reload(SPARC.config)
            assert SPARC.config.cors_origins == ["https://sparc.example.com"]
            with patch.dict(os.environ, {"CORS_ORIGINS": ""}):
                importlib.reload(SPARC.config)