from sqlalchemy.ext.asyncio import async_sessionmaker, create_async_engine
from .models import Base

DATABASE_URL = "postgresql+asyncpg://user:pass@localhost/dvd_db"  # From env

engine = create_async_engine(DATABASE_URL, echo=True)
async_session = async_sessionmaker(engine, class_=AsyncSession, expire_on_commit=False)

async def init_db():
    async with engine.begin() as conn:
        await conn.run_sync(Base.metadata.create_all)