# https://stepik.org/lesson/701985/step/12?unit=702086

from typing import List


class Thing:
    def __init__(self, name: str, weight: int):
        self.name, self.weight = name, weight

    def __repr__(self):
        return f"{self.__class__.__name__}({self.name!r}, {self.weight!r})"


class Bag:
    def __init__(self, max_weight: int):
        self.__things: List[Thing] = []
        self.max_weight = max_weight

    def __repr__(self):
        return f"{self.__class__.__name__}({self.max_weight!r})"

    @property
    def weight(self) -> int:
        return sum(t.weight for t in self.__things)

    @property
    def remaining_weight(self) -> int:
        return self.max_weight - self.weight

    @property
    def things(self) -> List[Thing]:
        return self.__things

    def add_thing(self, thing: Thing):
        if self.remaining_weight >= thing.weight:
            self.__things.append(thing)

    def remove_thing(self, indx: int):
        del self.__things[indx]

    def get_total_weight(self) -> int:
        return self.weight


bag = Bag(1000)
bag.add_thing(Thing("Книга по Python", 100))
bag.add_thing(Thing("Котелок", 500))
bag.add_thing(Thing("Спички", 20))
bag.add_thing(Thing("Бумага", 100))
w = bag.get_total_weight()
for t in bag.things:
    print(f"{t.name}: {t.weight}")


def tests():
    ...


tests()