from typing import Dict
from typing import Optional
from typing import Union

from flask import Response
from flask import jsonify
from flask_api import status


class MonsunError(Exception):
    status_code = status.HTTP_501_NOT_IMPLEMENTED

    data: Dict
    message: Optional[str]

    def __init__(
        self,
        content: Union[str, Dict],
    ):
        if isinstance(content, str):
            self.message = content
            self.data = {"message": self.message}
        elif isinstance(content, Dict):
            self.data = content
        else:
            raise ValueError("'content' must be either a string or an dict")

    @property
    def response(self) -> Response:
        response: Response = jsonify(self.data)
        response.status_code = self.status_code
        return response


class BadRequest(MonsunError):
    status_code = status.HTTP_400_BAD_REQUEST


class Unauthorized(MonsunError):
    status_code = status.HTTP_401_UNAUTHORIZED


class Forbidden(MonsunError):
    status_code = status.HTTP_403_FORBIDDEN


class InternalServerError(MonsunError):
    status_code = status.HTTP_500_INTERNAL_SERVER_ERROR


class ConfigurationError(InternalServerError):
    """raised in case of invalid configuration"""