1import re
  2
  3class Santa:
  4    _instance = None
  5    _all_gifts_and_counts = {}
  6    _all_kids_and_ages = {}
  7    _all_kids_and_gifts = {}
  8
  9    def __new__(cls):
 10        if not cls._instance:
 11            cls._instance = super(Santa, cls).__new__(cls)
 12        return cls._instance
 13
 14    def __iter__(self):
 15        return iter(self._all_kids_and_gifts.values())
 16
 17    def __call__(self, kid, wish):
 18        gift = self.get_gift(wish)
 19        self._all_kids_and_gifts[kid] = gift
 20
 21    def __matmul__(self, letter):
 22        match = re.search(r'^\s*(\d+)\s*$', letter, re.MULTILINE)
 23        signature = int(match.group(1))
 24        gift = self.get_gift(letter)
 25
 26        for kid in Kid.all_kids:
 27            if id(kid) == signature:
 28                self._all_kids_and_gifts[kid] = gift
 29
 30    def get_gift(self, letter):
 31        match = re.search(r'["\']([a-zA-Z0-9 ]+)["\']', letter)
 32        gift = match.group(1)
 33
 34        if gift not in self._all_gifts_and_counts:
 35            self._all_gifts_and_counts[gift] = 1
 36        else:
 37            self._all_gifts_and_counts[gift] += 1
 38
 39        return gift
 40
 41    def add_kids_ages(self, kid):
 42        if kid not in self._all_kids_and_ages:
 43            self._all_kids_and_ages[kid] = 0
 44        else:
 45            self._all_kids_and_ages[kid] += 1
 46
 47    def xmas(self):
 48        if not self._all_gifts_and_counts:
 49            for kid in Kid.all_kids:
 50                self.add_kids_ages(kid)
 51            print("Никой не получава нищо, защото няма желания")
 52            return
 53
 54        most_wished = max(self._all_gifts_and_counts, key=self._all_gifts_and_counts.get)
 55
 56        for kid in Kid.all_kids:
 57            self.add_kids_ages(kid)
 58
 59            if self._all_kids_and_ages[kid] > 5:
 60                continue
 61
 62            if getattr(kid, "is_naughty", False):
 63                kid("coal")
 64                kid.is_naughty = False
 65                print(f"{id(kid)} получава coal")
 66            else:
 67                gift = self._all_kids_and_gifts.get(kid)
 68                if gift:
 69                    kid(gift)
 70                    print(f"{id(kid)} получава {gift}")
 71                else:
 72                    kid(most_wished)
 73                    print(f"{id(kid)} получава {most_wished}")
 74
 75        self._all_gifts_and_counts.clear()
 76
 77def is_kid_bad(method):
 78    def wrapped(self, *args, **kwargs):
 79        try:
 80            return method(self, *args, **kwargs)
 81        except Exception:
 82            self.is_naughty = True
 83            raise
 84    return wrapped
 85
 86class Kid(type):
 87    all_kids = set()
 88    def __new__(cls, name, bases, attr_dict):
 89
 90        for key, value in attr_dict.items():
 91            if hasattr(value, "__call__") and not key.startswith("_"):
 92                attr_dict[key] = is_kid_bad(value)
 93
 94        return super().__new__(cls, name, bases, attr_dict)
 95
 96    def __call__(cls, *args, **kwargs):
 97        instance = super().__call__(*args, **kwargs)
 98        Kid.all_kids.add(instance)
 99        instance.is_naughty = False
100        if not callable(instance):
101            raise NotImplementedError("Сори, няма да има подарък.")
102        return instance