from typing import Union
from os import path as osp
import os
import importlib
import time

class Config:
    def __init__(self,conf:Union[dict,str]):
        
        if type(conf) == dict:
            # 杈撳叆鏄瓧鍏告椂
            
            self._conf_Dict = conf
            self.__name__ = '<Standard Dictionary>'
        else:
            ConfList = conf.split('://')
            FileFormat = ConfList[0]
            FilePath = ConfList[1]
            
            if FileFormat not in ['json','yaml','py','env']:
                # 鍒ゆ柇鏂囦欢鏍煎紡
                raise NameError(f'Unsupported file format:{FileFormat}')
            
            if not osp.exists(FilePath) and FileFormat not in ['env','py']:
                # 鍒ゆ柇鏂囦欢鏄惁瀛樺湪
                raise FileExistsError('The configuration file path does not exist.')
                
            self.__name__ = osp.splitext(osp.basename(FilePath))[0]
            
            self._conf_Dict = self._readConf(FilePath,FileFormat)
            
        self.update()
        
    def __getattr__(self, name):
        if name in self._conf_Dict:
            return self._conf_Dict[name]
        else:
            raise AttributeError(f"'{self.__class__.__name__}' object has no attribute '{name}'")
            
    def update(self,conf:Union[dict, None] = None):
        if conf:
            self._conf_Dict = conf
        # 鏇存柊鍒楄〃
        for k,v in self._conf_Dict.items():
            setattr(self,k,v)
        self.__updateTime__ = time.time()

c = Config('env://MY:dotenv')