from __future__ import annotations

import re

_NEGATIVE_TEST_RE = re.compile(r"\b(?:не|без|кроме)\b[^.?!]{0,28}\bтест", re.IGNORECASE)
_NEGATIVE_TEST_MARKERS = ("не про тест", "без тест", "кроме тест", "про прод код", "только прод", "production code")
_POSITIVE_TEST_MARKERS = (
    "тест",
    "tests",
    "pytest",
    "unit test",
    "unit tests",
    "тестиру",
)
_TEST_TERMS = {"тест", "тесты", "test", "tests", "pytest", "unit", "unit test", "юнит-тест", "юниттест"}


def is_negative_test_request(text: str) -> bool:
    lowered = (text or "").lower()
    if _NEGATIVE_TEST_RE.search(lowered):
        return True
    return any(marker in lowered for marker in _NEGATIVE_TEST_MARKERS)


def has_test_focus(text: str) -> bool:
    lowered = (text or "").lower()
    if is_negative_test_request(lowered):
        return False
    return any(marker in lowered for marker in _POSITIVE_TEST_MARKERS)


def is_test_related_token(value: str) -> bool:
    lowered = (value or "").lower().strip()
    if not lowered:
        return False
    if lowered in _TEST_TERMS:
        return True
    if lowered.startswith("test"):
        return True
    return lowered.startswith("тест")
