dependencies.py

from fastapi import Depends, HTTPException
from main import SECRET_KEY, ALGORITHM, oauth2_schema
from models import Usuario, db
from sqlalchemy.orm import sessionmaker, Session
from models import Usuario
from jose import JWTError, jwt


def pegar_sessao():
    try:
        Session = sessionmaker(bind=db)
        session = Session()
        yield session
    finally:
        session.close()


def verificar_token(token: str = Depends(oauth2_schema), session: Session = Depends(pegar_sessao)):
    try:
        dic_info = jwt.decode(token, SECRET_KEY, ALGORITHM)
        id_usuario = int(dic_info.get("sub"))
    except JWTError:
        raise HTTPException(status_code=401, detail="Acesso Negado, verifique a validade do token")
    
    usuario = session.query(Usuario).filter(Usuario.id == 1).first()
    if not usuario:
     raise HTTPException(status_code=401, detail="Acesso invalido")
        
     
     return usuario