from fastapi import APIRouter, Form, Request,Depends,HTTPException
from service import ChatService
from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
from request import RequestChat
from typing import Optional
from fastapi.requests import Request


router = APIRouter()

class JWTBearer(HTTPBearer):
    def __init__(self, auto_error: bool = True):
        super(JWTBearer, self).__init__(auto_error=auto_error)

    async def __call__(self, request: Request):
        credentials: HTTPAuthorizationCredentials = await super(JWTBearer, self).__call__(request)
        if credentials:
            if credentials.scheme != "Bearer":
                raise HTTPException(status_code=401, detail="Invalid authentication scheme.")
            return credentials.credentials
        else:
            raise HTTPException(status_code=401, detail="Invalid authorization code.")

jwt_bearer = JWTBearer()
import decode_token