"""
Shared test fixtures for all tests.
Following FastAPI testing best practices.
"""
import pytest
from fastapi.testclient import TestClient
from httpx import AsyncClient, ASGITransport

from src.main import app


@pytest.fixture
def client() -> TestClient:
    """
    Synchronous test client for FastAPI.
    
    Use for simple tests that don't require async.
    """
    return TestClient(app)


@pytest.fixture
async def async_client() -> AsyncClient:
    """
    Async test client for FastAPI.
    
    Use for testing async endpoints and streaming.
    """
    async with AsyncClient(
        transport=ASGITransport(app=app),
        base_url="http://test"
    ) as client:
        yield client


@pytest.fixture
def mock_chat_request() -> dict:
    """Standard chat completion request fixture."""
    return {
        "model": "Tatlock",
        "messages": [
            {"role": "user", "content": "Hello, world!"}
        ],
        "temperature": 0.7,
        "stream": False,
    }


@pytest.fixture
def mock_streaming_chat_request(mock_chat_request) -> dict:
    """Streaming chat completion request fixture."""
    return {**mock_chat_request, "stream": True}