from sqlalchemy.ext.asyncio import AsyncSession, create_async_engine
from sqlalchemy.orm import sessionmaker, declarative_base
from app.settings import settings

Base = declarative_base()

from sqlalchemy.pool import QueuePool

# Create async engine with connection pooling
engine = create_async_engine(
    settings.DATABASE_URL,
    echo=True,
    poolclass=QueuePool,
    pool_size=5,
    max_overflow=10,
)

# Create async session factory
async_session = sessionmaker(
    engine, class_=AsyncSession, expire_on_commit=False
)