from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker

from app.core.config import settings

engine = create_engine(
    settings.SQLALCHEMY_DATABASE_URL, 
    connect_args={"check_same_thread": False}
)
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)

def get_db():
    """
    Dependency function to get a database session.
    """
    db = SessionLocal()
    try:
        yield db
    finally:
        db.close()