from typing import AsyncGenerator

from sqlalchemy.ext.asyncio import (AsyncSession, async_sessionmaker,
                                    create_async_engine)

from fastfood.config import settings

async_engine = create_async_engine(settings.DATABASE_URL_asyncpg)
async_session_maker = async_sessionmaker(
    async_engine,
    class_=AsyncSession,
    expire_on_commit=False,
)


async def get_async_session() -> AsyncGenerator[AsyncSession, None]:
    async with async_session_maker() as session:
        yield session