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

from app.config import settings

engine = create_async_engine(
    settings.DATABASE_URL,
    echo=False,
    future=True,
)

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

Base = declarative_base()


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