"""옹벽 물빼기 파이프 단면(73-2) — 횡단도에서 옹벽을 가르는 보기용 형상.

규칙(10-7 사용자 · 브레인):
  ① 옹벽(`retaining_wall`)만 — 흙막이(찰쌓기 · 콘크리트 등)에는 없음.
  ② 개수 = 반올림(벽 높이 / 1.5) · 최소 1 — 높이를 그 개수로 고르게 나눈 띠마다 가운데 하나.
     1.5 m = 0.75 m 에 1개 · 3 m = 0.75 · 2.25 m 에 2개.
  ③ 공용 벽 무늬(`appendWallHatch`) 안 — B06 카드 · B07 횡단면도 · 서버 Node 가 한 벌.
"""

import json
import re
import subprocess
from pathlib import Path

import pytest

PROJECT_ROOT = Path(__file__).resolve().parents[2]
B06 = PROJECT_ROOT / "B06_Section"
TSC = PROJECT_ROOT / "config" / "node_modules" / "typescript" / "bin" / "tsc"

_RUNNER = """
import { writeFileSync } from "node:fs";
const make = (tag) => ({
  tag, attrs: {}, children: [], text: "",
  setAttribute(k, v) { this.attrs[k] = String(v); },
  removeAttribute(k) { delete this.attrs[k]; },
  getAttribute(k) { return this.attrs[k] ?? null; },
  append(...nodes) { this.children.push(...nodes); },
  set textContent(v) { this.text = v; },
});
globalThis.document = { createElementNS: (_ns, tag) => make(tag) };
const { buildRevetWallGeometry } = await import("./B06_Section_UI_Cross_Wall.js");
const { appendWallHatch } = await import("./B06_Section_UI_Cross_Wall_Hatch.js");
const walk = (node, out = []) => {
  if (node.tag === "g" && node.attrs.class === "b06-chart__wall-drain") out.push(node);
  for (const child of node.children ?? []) walk(child, out);
  return out;
};
const drains = (heightM, form, retaining, outward = 1) => {
  const wall = buildRevetWallGeometry({
    anchor: { offset: 5, elevation: 100 }, outward, height: heightM - 0.5,
    material: "concrete", role: "outlet", form,
  });
  if (retaining) wall.retaining = true;
  const layer = make("svg");
  appendWallHatch(layer, wall, (o) => o, (e) => -e, "t");
  const bottom = wall.bottomBack.elevation;
  const xs = wall.points.map((p) => p.offset);
  const [lo, hi] = [Math.min(...xs) - 1e-6, Math.max(...xs) + 1e-6];
  return walk(layer).map((pipe) => {
    const lines = pipe.children.filter((c) => c.tag === "line");
    const mid = lines.map((l) => -(Number(l.attrs.y1) + Number(l.attrs.y2)) / 2);
    const drop = lines.map((l) => Number(l.attrs.y2) - Number(l.attrs.y1)); // x1 = 배면
    return {
      lines: lines.length,
      center: (mid[0] + mid[1]) / 2 - bottom,
      frontLower: drop.every((d) => d > 0),
      inside: lines.every((l) => [l.attrs.x1, l.attrs.x2].every((v) => lo <= +v && +v <= hi)),
      title: pipe.children.find((c) => c.tag === "title")?.text,
      cls: lines.map((l) => l.attrs.class ?? null),
    };
  });
};
writeFileSync(process.argv[2], JSON.stringify({
  h15: drains(1.5, "콘크리트", true),
  h30: drains(3.0, "콘크리트", true),
  h30right: drains(3.0, "중력식", true, -1),
  low: drains(0.6, "콘크리트", true),
  wet: drains(3.0, "돌쌓기(찰)", false),
  concrete: drains(3.0, "콘크리트", false),
}));
"""


@pytest.mark.skipif(not TSC.is_file(), reason="프론트엔드 의존성 미설치")
def test_옹벽만_높이_15m_띠마다_파이프_하나(tmp_path: Path) -> None:
    out = tmp_path / "js"
    subprocess.run(  # noqa: S603 — 고정 실행 파일
        [
            "node",
            str(TSC),
            str(B06 / "B06_Section_UI_Cross_Wall.ts"),
            "--outDir",
            str(out),
            "--module",
            "esnext",
            "--target",
            "es2022",
            "--moduleResolution",
            "bundler",
            "--skipLibCheck",
            "--ignoreConfig",
        ],
        cwd=str(PROJECT_ROOT),
        capture_output=True,
    )
    for emitted in out.rglob("*.js"):
        emitted.write_text(
            re.sub(r'(from\s+"\./[^"]+)"', r'\1.js"', emitted.read_text(encoding="utf-8")),
            encoding="utf-8",
        )
    base = next(path.parent for path in out.rglob("B06_Section_UI_Cross_Wall.js"))
    (base / "runner.mjs").write_text(_RUNNER, encoding="utf-8")
    result = tmp_path / "out.json"
    subprocess.run(  # noqa: S603
        ["node", str(base / "runner.mjs"), str(result)], check=True, capture_output=True
    )
    got = json.loads(result.read_text(encoding="utf-8"))

    assert [p["center"] for p in got["h15"]] == pytest.approx([0.75], abs=0.01)
    assert [p["center"] for p in got["h30"]] == pytest.approx([0.75, 2.25], abs=0.01)
    assert [p["center"] for p in got["h30right"]] == pytest.approx([0.75, 2.25], abs=0.01)
    assert len(got["low"]) == 1, "낮은 옹벽도 최소 1개"
    assert got["wet"] == [] and got["concrete"] == [], "흙막이(찰쌓기 · 콘크리트)에 파이프가 섬"
    for pipe in got["h15"] + got["h30"] + got["h30right"]:
        assert pipe["lines"] == 2, "두 줄 평행선이 아님"
        assert pipe["frontLower"], "앞쪽이 낮지 않음"
        assert pipe["inside"], "파이프가 벽 밖으로 나감(B07 수확은 clip 이 없음)"
        assert pipe["title"] == "물빼기(보기용)"
        assert pipe["cls"] == [None, None], "선 색은 묶음 토큰이 정함"


def test_옹벽_표식은_구조물_종류로() -> None:
    source = (B06 / "B06_Section_UI_Cross_Revetment.ts").read_text(encoding="utf-8")
    assert 'spec.type_id === "retaining_wall"' in source
    css = (B06 / "B06_Section_UI_Style_Cross_Areas.css").read_text(encoding="utf-8")
    assert re.search(r"\.b06-chart__wall-drain line \{[^}]*var\(--color-", css), "색 토큰 없음"