from fastapi import Depends, HTTPException, status
from fastapi.security import OAuth2PasswordBearer
from jose import JWTError, jwt
from core.config import settings
# Configuración básica, reemplaza con tu clave secreta real y algoritmo
SECRET_KEY = settings.SECRET_KEY
ALGORITHM = settings.ALGORITHM

oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token")

def get_current_user(token: str = Depends(oauth2_scheme)):
    try:
        payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
        user_id = payload.get("user_id")
        if user_id is None:
            raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Usuario no encontrado")
        return user_id
    except JWTError:
        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Token inválido")