from fastapi import Depends, HTTPException

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

@app.post("/users/", response_model=UserResponse)
def create_user(user: UserCreate, db: SessionLocal = Depends(get_db)):
    db_user = db.query(User).filter(User.email == user.email).first()
    if db_user:
        raise HTTPException(status_code=400, detail="Email уже зарегистрирован")
    new_user = User(name=user.name, email=user.email)
    db.add(new_user)
    db.commit()
    db.refresh(new_user)
    return new_user