__author__ = 'RemiZOffAlex'
__email__ = 'remizoffalex@mail.ru'


class Mediator:
    def __init__(self):
        self.__values = {}

    def get(self, name):
        assert name in self.__values, f'Ключ {name} в настройках не найден'
        return self.__values[name]

    def set(self, name, value):
        self.__values[name] = value

    def emit(self, name, *args, **kwargs):
        assert name in self.__values, f'Ключ {name} в настройках не найден'
        method = self.__values[name]
        response = method(*args, **kwargs)
        return response

    def register(self, name, function):
        self.__values[name] = function

    def __contains__(self, key):
        if key in self.__values:
            return True
        else:
            return False

    def __delitem__(self, key):
        del self.__values[key]

    def __getitem__(self, key):
        value = self.__values[key]
        return value

    def __setitem__(self, key, value):
        self.__values[key] = value

    def __iter__(self):
        for name in self.__values.keys():
            yield name

    def __repr__(self):
        result = []
        for key in self.__values:
            value = self.__values[key]
            result.append(f'{key}: {value}')
        return '/n'.join(result)