from typing import Final

import requests
from pydantic import parse_obj_as
from pydantic.dataclasses import dataclass

from mdrsclient.api.base import BaseApi
from mdrsclient.exceptions import UnauthorizedException
from mdrsclient.models import Token, User


@dataclass(frozen=True)
class UserAuthResponse(Token):
    laboratory: str
    lab_id: int


class UserApi(BaseApi):
    ENTRYPOINT: Final[str] = "v2/"

    def auth(self, username: str, password: str) -> tuple[User, Token]:
        # print(self.__class__.__name__ + "::" + sys._getframe().f_code.co_name)
        url = self.ENTRYPOINT + "auth/"
        data = {"username": username, "password": password}
        response = self.connection.post(url, data=data)
        if response.status_code == requests.codes.unauthorized:
            raise UnauthorizedException("Invalid username or password.")
        self._raise_response_error(response)
        obj = parse_obj_as(UserAuthResponse, response.json())
        token = Token(access=obj.access, refresh=obj.refresh)
        user = User(id=token.user_id, username=username, laboratory_id=obj.lab_id, laboratory=obj.laboratory)
        return (user, token)

    def refresh(self, token: Token) -> Token:
        # print(self.__class__.__name__ + "::" + sys._getframe().f_code.co_name)
        url = self.ENTRYPOINT + "refresh/"
        data = {"refresh": token.refresh}
        response = self.connection.post(url, data=data)
        if response.status_code == requests.codes.unauthorized:
            raise UnauthorizedException("Token is invalid or expired.")
        self._raise_response_error(response)
        token = parse_obj_as(Token, response.json())
        return token