"""PLAN 370-2 — B06 사면 이동 멈춤 · 교차점 손잡이 · 고름 이어받기(요구 240-14).

짝: `B06_Section/logic/B06_Section_UI_Cross_Fit.ts`(`extendStop` · `toePoints`) ·
`B06_Section/B06_Section_UI_Cross_Design_Pick.ts`(손잡이 · 키 이어받기). 실제 TS 를
`helper_370_2_toe_stop.cjs` 가 Node 로 돌린다.
"""

from __future__ import annotations

import json
import os
import subprocess
import sys

import pytest

HERE = os.path.dirname(__file__)
ROOT = os.path.join(HERE, "..", "..")
if ROOT not in sys.path:
    sys.path.insert(0, ROOT)

from config.config_system import STANDARD_CROSS_SECTION  # noqa: E402

pytestmark = pytest.mark.skipif(
    not os.path.isdir(os.path.join(ROOT, "config", "node_modules")),
    reason="프론트엔드 의존성 미설치",
)


@pytest.fixture(scope="module")
def out(tmp_path_factory) -> dict:
    standard = tmp_path_factory.mktemp("std") / "standard.json"
    standard.write_text(json.dumps(STANDARD_CROSS_SECTION), encoding="utf-8")
    proc = subprocess.run(  # noqa: S603 — 고정 실행 파일
        ["node", os.path.join(HERE, "helper_370_2_toe_stop.cjs"), str(standard)],
        capture_output=True,
        text=True,
        encoding="utf-8",
        timeout=60,
    )
    assert proc.returncode == 0, proc.stderr
    return json.loads(proc.stdout)


def test_노견_끝이_원지반을_지나면_그_자리에_한_번_섬(out) -> None:
    stop = out["stop"]
    low, high = stop["crossing"]
    assert low < stop["value"] < high
    assert stop["gap"] < 2e-3  # 노견 끝 = 원지반
    assert stop["noCross"] == 0.1  # 안 지나면 걸음 그대로
    assert abs(stop["fromStop"] - round(stop["value"] + 0.1, 1)) < 1e-9  # 멈춘 뒤엔 다시 안 섬
    assert stop["leftNoGround"] == 0.1  # 지반 없으면 그대로


def test_교차점_손잡이_쪽마다_늘_보임(out) -> None:
    toe = out["toe"]
    assert toe["count"] == len(toe["sides"]) == 2
    assert toe["centerClass"] is True  # 중심점 원과 같은 고르기 차례
    assert toe["rightOnGround"] is True
    assert abs(toe["rightCx"] - toe["rightX"]) < 1e-9


def test_손잡이를_고르면_그_쪽_사면_좌우_이동(out) -> None:
    got = out["toePick"]
    assert got["active"] is True and got["panelOpen"] is True
    assert got["title"] == "교차점 이동 (우)"  # 아래 띠 공용 칸(370-3)
    assert got["value"].startswith("노선에서 ")
    assert len(got["sent"]) == 1 and got["sent"][0]["side"] == "right"
    low, high = out["stop"]["crossing"]
    assert abs(got["sent"][0]["valueM"] - out["stop"]["value"]) < 1e-9  # ◀▶ 도 멈춤 자리
    assert low < got["sent"][0]["valueM"] < high


def test_절에서_성으로_넘어가도_고름_유지(out) -> None:
    inherit = out["inherit"]
    assert inherit["cutIndex"] >= 0 and inherit["before"] == inherit["cutIndex"]
    assert inherit["farMode"] == "left_cut"  # 우 = 성토로 넘어감
    assert inherit["afterIndex"] is not None
    assert inherit["label"] == "교차점 이동 (우)"