"""152-3 도수로 · 돌붙임 띠 — 묻힌 유출 끝 3도 절토선(내림 · 수평)에도 띠 · 오르막 복합경사 절토엔 없음.

화면 TS 를 그 자리에서 돌린 값(`helper_152_3_chute_cut.cjs`) · B06 관 · 흙막이 띠와 3D 띠가 같은 거름.
"""

import json
import subprocess
from pathlib import Path

import pytest

ROOT = Path(__file__).resolve().parents[2]
HELPER = Path(__file__).parent / "helper_152_3_chute_cut.cjs"
NODE_MODULES = ROOT / "config" / "node_modules"

pytestmark = pytest.mark.skipif(not NODE_MODULES.is_dir(), reason="프론트엔드 의존성 미설치")


@pytest.fixture(scope="module")
def out() -> dict:
    done = subprocess.run(  # noqa: S603 — 고정 실행 파일
        ["node", str(HELPER)], cwd=str(ROOT), capture_output=True, text=True, encoding="utf-8"
    )
    assert done.returncode == 0, done.stderr
    return json.loads(done.stdout)


def _src(relative: str) -> str:
    return (ROOT / relative).read_text(encoding="utf-8")


def test_묻힌_흙막이_유출_3도_선에_띠(out: dict) -> None:
    (cut,) = out["box"]["segments"]
    assert cut["kind"] == "cut" and not cut["rises"]
    assert cut["band"] and cut["topIsLine"]  # 윗면 = 3도 선
    assert cut["below"] == pytest.approx(0.3, abs=0.01)  # 선 아래 두께
    assert out["box"]["bands3d"] == 1 and out["box"]["bands3dFillOnly"] == 0


def test_배관_묻힌_끝_내림이면_띠_오르막이면_없음(out: dict) -> None:
    down = out["pipeDown"]["segments"]
    assert [s["kind"] for s in down] == ["fill", "cut"]
    assert all(s["band"] for s in down)
    up = out["pipeUp"]["segments"]
    assert up[-1]["kind"] == "cut" and up[-1]["rises"] and not up[-1]["band"]
    assert out["pipeDown"]["bands3d"] == 2 and out["pipeUp"]["bands3d"] == 1


def test_성토만인_측점은_그대로(out: dict) -> None:
    base = out["pipeBase"]
    assert base["bands3d"] == base["bands3dFillOnly"] == 2


def test_거름_한_벌_배선() -> None:
    culvert = _src("B06_Section/B06_Section_UI_Cross_Culvert.ts")
    assert "layout.outletFill.segments.filter(isChuteSegment)," in culvert
    corridor = _src("B05_Profile/B05_Profile_UI_Corridor_Structures.ts")
    flat = " ".join(corridor.split())
    assert "chuteBands( layout.outletFill.segments, section.culvert?.chute, isChuteSegment," in flat
    hatch = _src("B06_Section/B06_Section_UI_Cross_Wall_Hatch.ts")
    assert '"3도 절토선"' in hatch
    # 박스 · 세월교 본체 끝은 성토만(3도 규칙 안 넓힘)
    for name in ("B06_Section_UI_Cross_Box.ts", "B06_Section_UI_Cross_Ford.ts"):
        assert 'side.fillSegments.filter((s) => s.kind !== "cut")' in _src(f"B06_Section/{name}")