from sqlalchemy.ext.asyncio import create_async_engine, async_sessionmaker, AsyncSession
from sqlmodel import SQLModel
from .config import settings

engine = create_async_engine(settings.database_url, echo=False, future=True)
AsyncSessionLocal = async_sessionmaker(engine, class_=AsyncSession, expire_on_commit=False)


async def init_db() -> None:
    # Import models so SQLModel.metadata sees them
    from . import models  # noqa: F401

    async with engine.begin() as conn:
        await conn.run_sync(SQLModel.metadata.create_all)


async def get_session() -> AsyncSession:
    async with AsyncSessionLocal() as session:
        yield session