"""Strict client reply quality gate regressions."""

from __future__ import annotations

import unittest

from .services import guardrail


class ClientReplyQualityGateTest(unittest.TestCase):
    def test_blocks_role_meta_speech_variants(self) -> None:
        samples = [
            "내담자 역할로 응답하겠습니다. 엄마가 가보라고 해서요.",
            "AI로서 답변드리면 저는 우울한 학생입니다.",
            "상담자 입장에서 보면 제 핵심신념은 무가치감입니다.",
            "제 핵심신념은 저는 쓸모없다는 것입니다.",
        ]

        for sample in samples:
            with self.subTest(sample=sample):
                result = guardrail.sanitize_client_reply(sample, ideation_stage=1, turn_seq=2)
                self.assertTrue(result.needs_regeneration)
                self.assertIn("role_meta", result.reasons)

    def test_blocks_repeated_greeting_after_opening_turn_only_when_greeting_starts_reply(self) -> None:
        blocked = guardrail.sanitize_client_reply(
            "안녕하세요. 처음 뵙겠습니다. 저는 서연이에요.",
            ideation_stage=1,
            turn_seq=3,
        )
        first_turn = guardrail.sanitize_client_reply(
            "안녕하세요. 엄마가 가보라고 해서 왔어요.",
            ideation_stage=1,
            turn_seq=1,
        )
        quoted = guardrail.sanitize_client_reply(
            "방금 선생님이 안녕하세요라고 말해서 더 어색했어요.",
            ideation_stage=1,
            turn_seq=3,
        )

        self.assertTrue(blocked.needs_regeneration)
        self.assertIn("repeat_greeting_after_opening", blocked.reasons)
        self.assertFalse(first_turn.needs_regeneration)
        self.assertFalse(quoted.needs_regeneration)

    def test_blocks_near_duplicate_previous_client_reply_but_allows_short_overlap(self) -> None:
        previous = "몰라요. 엄마가 그냥 가보라고 해서 왔어요."
        duplicate = guardrail.sanitize_client_reply(
            "몰라요. 엄마가 그냥 가보라고 해서 왔어요.",
            ideation_stage=1,
            previous_client_reply=previous,
        )
        near_duplicate = guardrail.sanitize_client_reply(
            "엄마가 그냥 가보라고 해서 왔어요. 몰라요.",
            ideation_stage=1,
            previous_client_reply=previous,
        )
        allowed = guardrail.sanitize_client_reply(
            "엄마가 가보라고 한 건 맞는데, 지금은 좀 짜증나요.",
            ideation_stage=1,
            previous_client_reply=previous,
        )

        self.assertTrue(duplicate.needs_regeneration)
        self.assertIn("duplicate_client_reply", duplicate.reasons)
        self.assertTrue(near_duplicate.needs_regeneration)
        self.assertIn("duplicate_client_reply", near_duplicate.reasons)
        self.assertFalse(allowed.needs_regeneration)


if __name__ == "__main__":
    unittest.main()