# This Python file uses the following encoding: utf-8
import toml
import mysql.connector


class DbManager(object):
    __connection = None
    __con_param = None
    def __new__ (cls):
        if not hasattr(cls, "__instance"):
            cls.__instance = super().__new__(cls)
        return cls.__instance

    def __init__ (self, dbconf):
        __con_param = __initializeConfig(dbconf)
        self.__connection = mysql.connector.connect(__con_param)
        return self.__connection

    def __initializeConfig(self, dbconf):
        __con_param = {'user': dbconf['DB_USER'], 'password': dbconf['DB_PASS'], 'port': dbconf['DB_PORT'], 'host': dbconf['DB_HOST'], 'name': dbconf['DB_NAME']}
        return __con_param