/* 152-2 연동 흙막이 높이 헬퍼 — 높이 칸 빈 박스 흙막이(73-4 픽스처 352.14)의 연동 옆 측점(340 · 360)이
 * 소유 측점이 그린 순수 높이를 물려받는지 · 연동을 푼 카드만 자기 높이로 서는지. 결과 = 표준출력 JSON.
 * 짝 = `test_152_2_link_height.py`.
 */
const fs = require("fs");
const path = require("path");
const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));

const ROOT = path.join(__dirname, "..", "..");
const cache = new Map();
// 화면 전용 모듈(토스트 · 글) — 기하 계산엔 안 쓰임
const STUBS = {
  "@ui/ui_template_toast": { showToast: () => undefined },
};

function loadTs(file) {
  const full = path.resolve(file);
  if (cache.has(full)) return cache.get(full);
  if (full.endsWith(".json")) {
    const data = JSON.parse(fs.readFileSync(full, "utf8"));
    cache.set(full, data);
    return data;
  }
  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
    compilerOptions: {
      module: ts.ModuleKind.CommonJS,
      target: ts.ScriptTarget.ES2020,
      esModuleInterop: true,
    },
  }).outputText;
  const box = { exports: {} };
  cache.set(full, box.exports);
  const localRequire = (request) => {
    if (STUBS[request]) return STUBS[request];
    const alias = { "@util/": "common_util", "@ui/": "ui_template", "@config/": "config" };
    for (const [prefix, dir] of Object.entries(alias))
      if (request.startsWith(prefix))
        return loadTs(resolve(path.join(ROOT, dir, request.slice(prefix.length))));
    return loadTs(resolve(path.join(path.dirname(full), request)));
  };
  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
  cache.set(full, box.exports);
  return box.exports;
}
const resolve = (base) =>
  [base, `${base}.ts`, path.join(base, "index.ts")].find(
    (p) => fs.existsSync(p) && fs.statSync(p).isFile(),
  ) ?? `${base}.ts`;

const B06 = (f) => path.join(ROOT, "B06_Section", f);
const { computeStoredLayouts } = loadTs(B06("B06_Section_Structure_Layouts.ts"));

const fixture = JSON.parse(
  fs.readFileSync(path.join(__dirname, "fixtures", "b06_73_4_body_guard_sections.json"), "utf8"),
);
// 높이 칸 비움(= 자동 · 세월교 · 박스 흙막이 기본) — 원본은 3.5 를 넣은 상태
const sections = fixture.cross_sections.map((s) => {
  if (!s.culvert?.body) return s;
  const copy = JSON.parse(JSON.stringify(s));
  copy.culvert.inlet.revet_height_m = null;
  copy.culvert.outlet.revet_height_m = null;
  return copy;
});
const at = (list, c) => list.find((s) => Math.abs(s.chainage_m - c) < 0.6);
const round = (v) => Math.round(v * 1000) / 1000;
const heightsOf = (list, c) => {
  const culvert = computeStoredLayouts(at(list, c), list)?.culvert;
  return {
    pure: culvert?.pureHeights
      ? { inlet: round(culvert.pureHeights.inlet), outlet: round(culvert.pureHeights.outlet) }
      : null,
    walls: (culvert?.walls ?? []).map((w) => ({ role: w.role, height: round(w.height) })),
    shift: culvert?.revetShift ?? null,
  };
};

const out = { owner: heightsOf(sections, 352.14), linked: {} };
for (const c of [340, 360]) out.linked[c] = heightsOf(sections, c);

// 340 연동 풂 + 유출 흙막이만 +0.1 m(좌측 「이 측점 높이」 줄이 그 측점 값을 고친 것)
const shift = out.linked[340].shift;
const detached = sections.map((s) => {
  if (Math.abs(s.chainage_m - 340) >= 0.6) return s;
  const copy = JSON.parse(JSON.stringify(s));
  copy.design.revet_link_detached = true;
  copy.design.revet_adjust = {
    ...(copy.design.revet_adjust ?? {}),
    inlet: { ...shift.inlet },
    outlet: { ...shift.outlet, h: round(shift.outlet.h + 0.1) },
  };
  return copy;
});
out.detached = {
  340: heightsOf(detached, 340),
  360: heightsOf(detached, 360),
  owner: heightsOf(detached, 352.14),
};
process.stdout.write(JSON.stringify(out));