from contextlib import asynccontextmanager
from typing import AsyncIterator

from sqlalchemy.ext.asyncio import AsyncSession, create_async_engine
from sqlalchemy.orm import sessionmaker

from config.config import settings

engine = create_async_engine(settings.database_url, echo=True)
async_session = sessionmaker(
    bind=engine,
    expire_on_commit=False,
    class_=AsyncSession,
)


@asynccontextmanager
async def get_session() -> AsyncIterator[AsyncSession]:
    async with async_session() as session:
        yield session