"""288 맹암거 횡단 형상(요구 183-3 · 9).

못박는 것
  - 288-1 맹암거 기준 측점 = 측구 없음 · 노면 = 암거 경사로 지대 낮은 쪽 한 경사(물넘이 286 · 287 길 —
    서버 `tilt_ranges` · `tilt_args` · TS 짝 `tilted`) · 제원 얹기 서버 `attach_underdrains` ↔ TS
    `attachUnderdrainSpecs` 같은 값 · 형상 = 노면을 암거 높이만큼 아래로 옵셋 → 성토 쪽은 성토 사면과
    만남 · 절토 쪽은 절토 사면을 늘여 만남 · 그 안 돌 무늬 · 높이 비면 안 그림.
  - 288-2 맹암거 형상 누름 = 그 구조물 id 고름(구조물 목록 창구 · 알약 · 폼 · 측점선 따라옴) · 물넘이와 같은
    판정면(보라 손잡이 아래 · 끌기 = 고름 아님 · 287-5) · 노면공 포장 범위 고름과 따로.

진짜 TS 는 `helper_288_underdrain.cjs` 가 Node 로 돌림. 화면은 사용자 확인.
"""

from __future__ import annotations

import json
import subprocess
import sys
from pathlib import Path

import pytest

HERE = Path(__file__).resolve().parent
ROOT = HERE.parents[1]
if str(ROOT) not in sys.path:
    sys.path.insert(0, str(ROOT))

import B06_Section.B06_Section_Engine_Tilt as tilt  # noqa: E402
from B05_Profile.B05_Profile_Structures_Schema import StructureInstance  # noqa: E402
from B06_Section.B06_Section_Engine_Design import compute_cross_design  # noqa: E402

STRUCTURES = [
    {
        "structure_id": "ud-1",
        "type_id": "cross_underdrain",
        "placement": "point",
        "chainage_m": 40.0,
        "options": {"culvert_height_m": 0.8, "culvert_slope_pct": 4},
    },
    {  # 경사 · 높이 빈 맹암거 — 표준 횡단경사 · 형상 없음
        "structure_id": "ud-2",
        "type_id": "cross_underdrain",
        "placement": "point",
        "chainage_m": 80.0,
        "options": {},
    },
    {
        "structure_id": "x-1",
        "type_id": "cross_drain_exposed",
        "placement": "point",
        "chainage_m": 60.0,
    },
]
SECTIONS = [{"chainage_m": c} for c in (20.0, 40.0, 60.0, 80.0)]

pytestmark = pytest.mark.skipif(
    not (ROOT / "config" / "node_modules" / "typescript").is_dir(),
    reason="프론트엔드 의존성 미설치",
)


@pytest.fixture()
def project(monkeypatch, tmp_path) -> Path:
    items = [StructureInstance(**s) for s in STRUCTURES]
    monkeypatch.setattr(tilt, "load_structures", lambda _root: (1, items))
    monkeypatch.setattr(tilt, "load_culvert_sets", lambda _root: {})
    return tmp_path


@pytest.fixture(scope="module")
def ts(tmp_path_factory) -> dict:
    source = tmp_path_factory.mktemp("s288") / "in.json"
    source.write_text(
        json.dumps({"structures": STRUCTURES, "sections": SECTIONS}), encoding="utf-8"
    )
    proc = subprocess.run(
        ["node", str(HERE / "helper_288_underdrain.cjs"), str(source)],
        capture_output=True,
        text=True,
        encoding="utf-8",
        timeout=60,
    )
    assert proc.returncode == 0, proc.stderr
    return json.loads(proc.stdout)


def test_맹암거_자리_기울기_서버(project):
    ranges = tilt.tilt_ranges(project)
    assert ranges == [(40.0, 40.0, 4.0), (80.0, 80.0, None)]
    assert tilt.tilt_args(40.0, ranges) == {"tilted": True, "tilt_pct": 4.0}
    assert tilt.tilt_args(80.01, ranges) == {"tilted": True, "tilt_pct": None}
    assert tilt.tilt_args(60.0, ranges) == {"tilted": False, "tilt_pct": None}


def test_제원_얹기_서버_TS_같은_값(project, ts):
    sections = [dict(s) for s in SECTIONS]
    assert tilt.attach_underdrains(project, sections) == 2 == ts["attached"]
    assert [s.get("underdrain") for s in sections] == ts["sections"]
    assert ts["sections"][1] == {
        "structure_id": "ud-1",
        "chainage_m": 40.0,
        "height_m": 0.8,
        "slope_pct": 4.0,
    }


def test_맹암거_측점_설계_측구_없음_낮은_쪽_기울기():
    samples = [
        {"offset_m": o / 2, "elevation_m": round(100.0 + 0.35 * o / 2, 4), "valid": True}
        for o in range(-24, 25)
    ]
    kwargs = {"ground_type": "soil", "section_mode": "left_cut", "ditch_side": "left"}
    got = compute_cross_design(samples, 100.4, tilted=True, tilt_pct=4.0, **kwargs)
    assert got["ditch_enabled"] is False and got["cross_slope_pct"] == 4.0
    left, right = (got["road_edges"][k]["elevation_m"] for k in ("left", "right"))
    assert left > right  # 지반이 좌로 오름 = 우가 낮음


def test_형상_옵셋선_성토_절토와_만남(ts):
    outline = [(p["offset"], p["elevation"]) for p in ts["outline"]]
    expected = [
        (3, 100.15),  # 좌 노면 끝
        (-3, 99.85),  # 우 노면 끝
        (-4.632653, 98.768367),  # 우 성토 사면 ∩ 옵셋선
        (1.846154, 99.092308),  # 좌 절토 사면을 늘인 선 ∩ 옵셋선
    ]
    assert len(outline) == len(expected)
    for got, want in zip(outline, expected):
        assert got == pytest.approx(want, abs=1e-5)
    assert ts["noHeight"] is None
    assert ts["drew"] is True and ts["stones"] > 0


def test_횡단도_B07_이_맹암거를_그림():
    view = (ROOT / "B06_Section" / "B06_Section_UI_Cross_View.ts").read_text(encoding="utf-8")
    assert (
        "appendUnderdrainOverlay(plotLayer, section.underdrain, section.design, x, toDisplayY);"
        in view
    )
    b07 = (ROOT / "B07_DesignDetail" / "B07_DesignDetail_Cross_Overlay.ts").read_text(
        encoding="utf-8"
    )
    assert "appendUnderdrainOverlay(svg, section.underdrain, design, x, y);" in b07
    refresh = (ROOT / "B06_Section" / "B06_Section_Cross_Refresh.ts").read_text(encoding="utf-8")
    assert "tilted: Boolean(section.ford_pavement || section.underdrain)," in refresh


def test_맹암거_형상_누름은_그_구조물_고름(ts):
    assert ts["bodyId"] == "ud-1"  # 둘레 = 형상 고름 표식
    assert ts["routed"] == [["pipe"], [ts["eventName"], "ud-1", True]]
    view = (ROOT / "B06_Section" / "B06_Section_UI_Section_View.ts").read_text(encoding="utf-8")
    assert "grid.addEventListener(SHAPE_PICK_EVENT, (event) => {" in view
    assert "if (id) pavementSelectListener?.(id);" in view  # = structuresPanel.selectStructure(id)
    cross = (ROOT / "B06_Section" / "B06_Section_UI_Cross_View.ts").read_text(encoding="utf-8")
    assert 'revetOffset && shapePickRoute(svg, (at) => toggleRevet("pipe", at)),' in cross