"""
测试配置
"""

import pytest
import asyncio
from typing import AsyncGenerator

from httpx import AsyncClient
from sqlalchemy.ext.asyncio import AsyncSession, create_async_engine, async_sessionmaker

from src.main import app
from src.config.database import Base, get_db


# 测试数据库URL
TEST_DATABASE_URL = "sqlite+aiosqlite:///./test.db"

# 创建测试引擎
test_engine = create_async_engine(TEST_DATABASE_URL, echo=False)
TestSessionLocal = async_sessionmaker(
    test_engine, class_=AsyncSession, expire_on_commit=False
)


@pytest.fixture(scope="session")
def event_loop():
    """创建事件循环"""
    loop = asyncio.get_event_loop_policy().new_event_loop()
    yield loop
    loop.close()


@pytest.fixture(scope="function")
async def db_session() -> AsyncGenerator[AsyncSession, None]:
    """创建测试数据库会话"""
    async with test_engine.begin() as conn:
        await conn.run_sync(Base.metadata.create_all)

    async with TestSessionLocal() as session:
        yield session

    async with test_engine.begin() as conn:
        await conn.run_sync(Base.metadata.drop_all)


@pytest.fixture(scope="function")
async def client(db_session: AsyncSession) -> AsyncGenerator[AsyncClient, None]:
    """创建测试客户端"""

    async def override_get_db():
        yield db_session

    app.dependency_overrides[get_db] = override_get_db

    async with AsyncClient(app=app, base_url="http://test") as ac:
        yield ac

    app.dependency_overrides.clear()