from collections.abc import AsyncIterator

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

from app.config import get_settings

engine = create_async_engine(get_settings().database_url)
async_session_factory = async_sessionmaker(engine, expire_on_commit=False)


async def get_db() -> AsyncIterator[AsyncSession]:
    async with async_session_factory() as session:
        yield session