import logging
from typing import Union, List, Optional, Tuple, Dict, Any
import bleach
import tornado.web

from app.classes.models.users import ApiKeys

logger = logging.getLogger(__name__)


class BaseHandler(tornado.web.RequestHandler):

    nobleach = {bool, type(None)}
    redactables = ("pass", "api")

    # noinspection PyAttributeOutsideInit
    def initialize(
        self, helper=None, controller=None, tasks_manager=None, translator=None
    ):
        self.helper = helper
        self.controller = controller
        self.tasks_manager = tasks_manager
        self.translator = translator

    def get_remote_ip(self):
        remote_ip = (
            self.request.headers.get("X-Real-IP")
            or self.request.headers.get("X-Forwarded-For")
            or self.request.remote_ip
        )
        return remote_ip

    current_user: Optional[Tuple[Optional[ApiKeys], Dict[str, Any], Dict[str, Any]]]

    def get_current_user(
        self,
    ) -> Optional[Tuple[Optional[ApiKeys], Dict[str, Any], Dict[str, Any]]]:
        return self.controller.authentication.check(self.get_cookie("token"))

    def autobleach(self, name, text):
        for r in self.redactables:
            if r in name:
                logger.debug(f"Auto-bleaching {name}: [**REDACTED**]")
                break
            else:
                logger.debug(f"Auto-bleaching {name}: {text}")
        if type(text) in self.nobleach:
            logger.debug("Auto-bleaching - bypass type")
            return text
        else:
            return bleach.clean(text)

    def get_argument(
        self,
        name: str,
        default: Union[
            None, str, tornado.web._ArgDefaultMarker
        ] = tornado.web._ARG_DEFAULT,
        strip: bool = True,
    ) -> Optional[str]:
        arg = self._get_argument(name, default, self.request.arguments, strip)
        return self.autobleach(name, arg)

    def get_arguments(self, name: str, strip: bool = True) -> List[str]:
        if not isinstance(strip, bool):
            raise AssertionError
        args = self._get_arguments(name, self.request.arguments, strip)
        args_ret = []
        for arg in args:
            args_ret += self.autobleach(name, arg)
        return args_ret