"""Unit tests for core configuration."""
import pytest
from app.core.config import Settings


class TestSettings:
    """Test cases for Settings configuration."""

    def test_default_settings(self):
        """Test default configuration values."""
        settings = Settings()

        assert settings.APP_NAME == "AI Legal Assistant"
        assert settings.APP_VERSION == "1.0.0"
        assert settings.DEBUG is False
        assert settings.DATABASE_URL == "sqlite+aiosqlite:///./data/legal_assistant.db"

    def test_custom_settings_from_env(self, monkeypatch):
        """Test configuration from environment variables."""
        monkeypatch.setenv("DEBUG", "true")
        monkeypatch.setenv("DATABASE_URL", "sqlite+aiosqlite:///./test.db")
        monkeypatch.setenv("LLM_API_KEY", "test-key")

        settings = Settings()

        assert settings.DEBUG is True
        assert settings.DATABASE_URL == "sqlite+aiosqlite:///./test.db"
        assert settings.LLM_API_KEY == "test-key"

    def test_llm_settings(self, monkeypatch):
        """Test LLM configuration."""
        monkeypatch.setenv("LLM_API_BASE", "https://api.example.com/v1")
        monkeypatch.setenv("LLM_MODEL", "gpt-4")

        settings = Settings()

        assert settings.LLM_API_BASE == "https://api.example.com/v1"
        assert settings.LLM_MODEL == "gpt-4"

    def test_embedding_settings(self, monkeypatch):
        """Test embedding configuration."""
        monkeypatch.setenv("EMBEDDING_MODEL", "text-embedding-3-small")
        monkeypatch.setenv("EMBEDDING_DIMENSION", "1536")

        settings = Settings()

        assert settings.EMBEDDING_MODEL == "text-embedding-3-small"
        assert settings.EMBEDDING_DIMENSION == 1536

    def test_jwt_settings(self, monkeypatch):
        """Test JWT configuration."""
        monkeypatch.setenv("JWT_SECRET_KEY", "test-secret-key")
        monkeypatch.setenv("JWT_ALGORITHM", "HS256")
        monkeypatch.setenv("JWT_ACCESS_TOKEN_EXPIRE_MINUTES", "60")

        settings = Settings()

        assert settings.JWT_SECRET_KEY == "test-secret-key"
        assert settings.JWT_ALGORITHM == "HS256"
        assert settings.JWT_ACCESS_TOKEN_EXPIRE_MINUTES == 60