from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
from sqlalchemy.orm import declarative_base

from config import DATABASE_URL

engine = create_async_engine(
    DATABASE_URL,
    echo=False,
    future=True,
    pool_size=100,
    max_overflow=200,
    pool_timeout=60,
)

async_session_maker = async_sessionmaker(
    bind=engine,
    expire_on_commit=False,
    class_=AsyncSession,
)

Base = declarative_base()