"""평가 재시도 라우트의 실패 노출 테스트."""

from __future__ import annotations

import importlib
import unittest
from types import SimpleNamespace
from unittest.mock import AsyncMock, patch

from fastapi import HTTPException

from .deps import Principal, Role
from .services import evaluator

eval_routes = importlib.import_module("app.routes.eval")


class ReevaluateSessionRouteTest(unittest.IsolatedAsyncioTestCase):
    async def test_reevaluate_session_saves_result_error_then_raises(self) -> None:
        session_id = "00000000-0000-0000-0000-00000000e222"
        sess = _session_stub()
        result = evaluator.SessionEvaluation(
            session_id=session_id,
            stage="정리",
            scope="session_end",
            turns_evaluated=1,
            error="no_structured_output",
        )

        with (
            patch.object(eval_routes, "_load_session_or_404", AsyncMock(return_value=sess)),
            patch.object(eval_routes.evaluator, "evaluate_session", AsyncMock(return_value=result)),
            patch.object(
                eval_routes.session_persistence,
                "save_session_evaluation",
                AsyncMock(return_value=True),
            ) as save_evaluation,
        ):
            with self.assertRaises(HTTPException) as raised:
                await eval_routes.reevaluate_session(
                    session_id,
                    eval_routes.ReevaluateRequest(scope="session_end"),
                    _teacher_principal(),
                )

        self.assertEqual(raised.exception.status_code, 502)
        self.assertEqual(raised.exception.detail, "no_structured_output")
        saved_write = save_evaluation.await_args.args[0]
        self.assertEqual(saved_write.status, "error")
        self.assertEqual(saved_write.error, "no_structured_output")

    async def test_reevaluate_session_raises_when_result_cannot_be_saved(self) -> None:
        session_id = "00000000-0000-0000-0000-00000000e222"
        sess = _session_stub()
        result = evaluator.SessionEvaluation(
            session_id=session_id,
            stage="정리",
            scope="session_end",
            turns_evaluated=1,
        )

        with (
            patch.object(eval_routes, "_load_session_or_404", AsyncMock(return_value=sess)),
            patch.object(eval_routes.evaluator, "evaluate_session", AsyncMock(return_value=result)),
            patch.object(
                eval_routes.session_persistence,
                "save_session_evaluation",
                AsyncMock(return_value=False),
            ),
        ):
            with self.assertRaises(HTTPException) as raised:
                await eval_routes.reevaluate_session(
                    session_id,
                    eval_routes.ReevaluateRequest(scope="session_end"),
                    _teacher_principal(),
                )

        self.assertEqual(raised.exception.status_code, 503)
        self.assertIn("could not be saved", raised.exception.detail)

    async def test_reevaluate_session_prefers_session_theory_mode(self) -> None:
        session_id = "00000000-0000-0000-0000-00000000e222"
        sess = _session_stub(theory_mode="cbt", theory_target=["humanistic"])
        result = evaluator.SessionEvaluation(
            session_id=session_id,
            stage="정리",
            scope="session_end",
            turns_evaluated=1,
        )

        with (
            patch.object(eval_routes, "_load_session_or_404", AsyncMock(return_value=sess)),
            patch.object(
                eval_routes.evaluator,
                "evaluate_session",
                AsyncMock(return_value=result),
            ) as evaluate_session,
            patch.object(
                eval_routes.session_persistence,
                "save_session_evaluation",
                AsyncMock(return_value=True),
            ),
        ):
            await eval_routes.reevaluate_session(
                session_id,
                eval_routes.ReevaluateRequest(scope="session_end"),
                _teacher_principal(),
            )

        self.assertEqual(evaluate_session.await_args.kwargs["theory_mode"], "cbt")

    async def test_reevaluate_turn_preserves_session_theory_mode(self) -> None:
        session_id = "00000000-0000-0000-0000-00000000e222"
        sess = _session_stub(theory_mode="cbt", theory_target=["humanistic"], with_turns=True)
        result = evaluator.TurnEvaluation(turn_seq=1, stage="정리", theory_mode="cbt")

        with (
            patch.object(eval_routes, "_load_session_or_404", AsyncMock(return_value=sess)),
            patch.object(
                eval_routes.evaluator,
                "evaluate_turn",
                AsyncMock(return_value=result),
            ) as evaluate_turn,
        ):
            await eval_routes.reevaluate_turn(
                session_id,
                eval_routes.TurnReevaluateRequest(turn_seq=1),
                _teacher_principal(),
            )

        ctx = evaluate_turn.await_args.args[0]
        self.assertEqual(ctx.theory_mode, "cbt")

    async def test_get_session_evaluation_exposes_status_error_and_durable_flag(self) -> None:
        session_id = "00000000-0000-0000-0000-00000000e222"
        sess = _session_stub()
        record = {
            "status": "error",
            "source": "engine",
            "scope": "session_end",
            "stage": "정리",
            "payload": {},
            "error": "session evaluation timeout after 45s",
            "updated_at": "2026-07-01T00:00:00Z",
        }

        with (
            patch.object(eval_routes, "_load_session_or_404", AsyncMock(return_value=sess)),
            patch.object(
                eval_routes.session_persistence,
                "load_session_evaluation",
                AsyncMock(return_value=(record, True)),
            ),
        ):
            response = await eval_routes.get_session_evaluation(session_id, _teacher_principal())

        self.assertEqual(response.status, "error")
        self.assertEqual(response.error, "session evaluation timeout after 45s")
        self.assertTrue(response.durable)
        self.assertEqual(response.deep, {})


def _session_stub(
    *,
    theory_mode: str = "humanistic",
    theory_target: list[str] | None = None,
    with_turns: bool = False,
):
    selected_theory_mode = theory_mode
    selected_theory_target = theory_target or []

    class SessionStub:
        session_id = "00000000-0000-0000-0000-00000000e222"
        case_id = "00000000-0000-0000-0000-00000000c333"
        learner_id = "00000000-0000-0000-0000-000000000111"
        theory_mode = selected_theory_mode
        persona = SimpleNamespace(theory_target=selected_theory_target)
        state = SimpleNamespace(stage=SimpleNamespace(value="정리"))
        turns = (
            [
                SimpleNamespace(
                    turn_seq=1,
                    speaker="counselor",
                    text="상담자 발화",
                    text_masked="상담자 발화",
                ),
                SimpleNamespace(
                    turn_seq=2,
                    speaker="client",
                    text="내담자 응답",
                    text_masked="내담자 응답",
                ),
            ]
            if with_turns
            else []
        )

        def masked_turns(self):
            return [{"speaker": "counselor", "text_masked": "상담자 발화"}]

    return SessionStub()


def _teacher_principal() -> Principal:
    return Principal(
        user_id="00000000-0000-0000-0000-000000000222",
        role=Role.TEACHER,
        cohort_ids=[],
    )


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