from sqlalchemy import create_engine
from sqlalchemy.orm import DeclarativeBase, sessionmaker

from app import config

engine = create_engine(
    config.DATABASE_URL,
    connect_args={"check_same_thread": False} if config.DATABASE_URL.startswith("sqlite") else {},
)
SessionLocal = sessionmaker(bind=engine, autoflush=False, expire_on_commit=False)


class Base(DeclarativeBase):
    pass


def get_db():
    db = SessionLocal()
    try:
        yield db
    finally:
        db.close()