import enum

from typing import Optional, Union, Dict, Any, List
from pydantic import BaseModel

from api_controllers.redis.database import RedisActions
from api_validations.token.validations import (
    TokenDictType,
    OccupantTokenObject,
    EmployeeTokenObject,
    UserType,
)

class TokenProvider:

    AUTH_TOKEN: str = "AUTH_TOKEN"

    @classmethod
    def convert_redis_object_to_token(cls, redis_object: Dict[str, Any]) -> TokenDictType:
        """
        Process Redis object and return appropriate token object.
        """
        if redis_object.get("user_type") == UserType.employee.value:
            return EmployeeTokenObject(**redis_object)
        elif redis_object.get("user_type") == UserType.occupant.value:
            return OccupantTokenObject(**redis_object)
        raise ValueError("Invalid user type")

    @classmethod
    def get_dict_from_redis(
        cls, token: Optional[str] = None, user_uu_id: Optional[str] = None
        ) -> Union[TokenDictType, List[TokenDictType]]:
        """
        Retrieve token object from Redis using token and user_uu_id
        """
        token_to_use, user_uu_id_to_use = token or "*", user_uu_id or "*"
        list_of_token_dict, auth_key_list = [], [cls.AUTH_TOKEN, token_to_use, user_uu_id_to_use, "*"]
        if token:
            result = RedisActions.get_json(list_keys=auth_key_list, limit=1)
            if first_record := result.first:
                return cls.convert_redis_object_to_token(first_record)
        elif user_uu_id:
            result = RedisActions.get_json(list_keys=auth_key_list)
            if all_records := result.all:
                for all_record in all_records:
                    list_of_token_dict.append(cls.convert_redis_object_to_token(all_record))
                return list_of_token_dict
        raise ValueError("Token not found in Redis. Please check the token or user_uu_id.")

    @classmethod
    def retrieve_application_codes(cls, page_url: str, token: TokenDictType):
        """
        Retrieve application code from the token object or list of token objects.
        """
        if isinstance(token, EmployeeTokenObject):
            if application_codes := token.selected_company.reachable_app_codes.get(page_url, None):
                return application_codes
        elif isinstance(token, OccupantTokenObject):
            if application_codes := token.selected_occupant.reachable_app_codes.get(page_url, None):
                return application_codes
        raise ValueError("Invalid token type or no application code found.")

    @classmethod
    def retrieve_event_codes(cls, endpoint_code: str, token: TokenDictType) -> str:
        """
        Retrieve event code from the token object or list of token objects.
        """
        if isinstance(token, EmployeeTokenObject):
            if event_codes := token.selected_company.reachable_event_codes.get(endpoint_code, None):
                return event_codes
        elif isinstance(token, OccupantTokenObject):
            if event_codes := token.selected_occupant.reachable_event_codes.get(endpoint_code, None):
                return event_codes
        raise ValueError("Invalid token type or no event code found.")