#!/usr/bin/env python3
# -*- coding: utf-8 -*-

from typing import Self, Any
from Interfaces.Application.AnPInterface import AnPInterface
from Utils.Common import Common

class UniqueKeysManager:

    def __init__(self:Self, anp:AnPInterface) -> None:
        self.anp:AnPInterface = anp
        self.__keys:list[str] = []
        self.__alphabet:list[str] = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
        self.__length:int = 13

        self.update()

    def update(self:Self) -> None:
        self.__alphabet = Common.unique(self.anp.settings.get(("unique_keys_alphabet", "alphabet"), None, self.__alphabet))
        self.__length = self.anp.settings.get(("unique_keys_length", "length"), None, self.__length)

    def reset(self:Self) -> None:

        self.__keys = []
        self.__alphabet = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
        self.__length = 13

        self.update()

    def get(self:Self) -> str:
        
        key:str

        while True:
            key = ""
            while len(key) < self.__length:
                key += Common.random(self.__alphabet)
            if key[0] not in "0123456789" and key not in self.__keys:
                self.__keys.append(key)
                return key

    def remove(self:Self, key:str) -> None:
        if key in self.__keys:
            self.__keys.remove(key)