from sqlalchemy.ext.asyncio import create_async_engine, async_sessionmaker, AsyncSession
from app.core.config import settings

engine = create_async_engine(
    settings.DATABASE_URL,
    echo=False,
    pool_size=5,
    max_overflow=10,
    pool_timeout=30,
    pool_recycle=1800,
)

AsyncSessionLocal = async_sessionmaker(
    bind=engine,
    class_=AsyncSession,
    expire_on_commit=False,
    autocommit=False,
    autoflush=False,
)

async def get_db():
    async with AsyncSessionLocal() as session:
        try:
            yield session
        finally:
            await session.close()