import re

IDENTITY_QUESTION = re.compile(
    r"(кто\s+я|как\s+меня\s+зовут|сколько\s+мне\s+лет|"
    r"что\s+ты\s+(помнишь|знаешь)\s+(обо\s+мне|про\s+меня)|"
    r"напомни\s+(кто\s+я|про\s+меня))",
    re.IGNORECASE,
)

NAME_PATTERN = re.compile(
    r"(?:меня\s+зовут|имя[:\s]+|зовут)\s+([A-Za-zА-Яа-яЁё][A-Za-zА-Яа-яЁё\-]*)",
    re.IGNORECASE,
)
AGE_PATTERN = re.compile(r"(?:мне\s+(\d{1,3})\s+лет|возраст[:\s]+(\d{1,3}))", re.IGNORECASE)


def normalize_text(text: str) -> str:
    return " ".join(text.casefold().split())


def is_identity_question(text: str) -> bool:
    return bool(IDENTITY_QUESTION.search(text))


def parse_identity(text: str) -> dict[str, str]:
    result: dict[str, str] = {}
    name_match = NAME_PATTERN.search(text)
    if name_match:
        result["name"] = name_match.group(1)
    age_match = AGE_PATTERN.search(text)
    if age_match:
        result["age"] = age_match.group(1) or age_match.group(2)
    return result


def texts_are_similar(a: str, b: str) -> bool:
    na, nb = normalize_text(a), normalize_text(b)
    if na == nb:
        return True
    return na in nb or nb in na