from sqlalchemy.ext.asyncio import create_async_engine
from sqlalchemy.orm import DeclarativeBase
from sqlalchemy.ext.asyncio import async_sessionmaker

from app.config import settings

DATABASE_URL = settings.DATABASE_URL

engine = create_async_engine(DATABASE_URL, echo=True)

async_session_maker = async_sessionmaker(engine, expire_on_commit=False)

class Base(DeclarativeBase):
    pass