/* 139-6 노견을 넓힌 유출 쪽 관 길이 맞춤 헬퍼 — 설계선 엔진(`common_util_cross_design`)으로 노견 확장
 * 설계를 내고 배수관 기하(`_Cross_Culvert_Geom`)를 돌림. 입력 = B07 픽스처 배관 측점(85.052 · 유출 좌).
 * 표준단면 수치 = 인자 JSON 파일(파이썬 config 그대로 · 거울 시험과 같은 방식).
 * 짝 = `test_139_6_pipe_fit.py`.
 */
const fs = require("fs");
const path = require("path");
const { makeLoader } = require("./helper_ts_stub_loader.cjs");

const ROOT = path.join(__dirname, "..", "..");
const noop = new Proxy({}, { get: () => () => "" });
globalThis.document = { addEventListener: () => undefined };

const { loadTs } = makeLoader({
  root: ROOT,
  requireFor: (full) => {
    const resolve = (base) =>
      fs.existsSync(base) && fs.statSync(base).isFile() ? base : `${base}.ts`;
    const req = (r) => {
      if (r.startsWith("@ui/") || r.startsWith("@config/")) return noop;
      if (r.startsWith("@util/"))
        return loadTs(resolve(path.join(ROOT, "common_util", r.slice(6))));
      return loadTs(resolve(path.join(path.dirname(full), r)));
    };
    return req;
  },
});

const { computeCrossDesign } = loadTs(
  path.join(ROOT, "common_util", "common_util_cross_design.ts"),
);
const { computeCulvertLayout, REVET_EMBED_DEPTH_M } = loadTs(
  path.join(ROOT, "B06_Section", "logic/B06_Section_Cross_Culvert_Geom.ts"),
);
const { cutLength } = loadTs(
  path.join(ROOT, "B06_Section", "logic", "B06_Section_UI_Cross_Culvert_Solve.ts"),
);

const sections = JSON.parse(
  fs.readFileSync(path.join(__dirname, "fixtures", "b07_cross_overlay_sections.json"), "utf8"),
).cross_sections;
const section = sections.find((s) => s.culvert && !s.culvert.hidden_pipe);
const d = section.design;
const standard = JSON.parse(fs.readFileSync(process.argv[2], "utf8"));
const designOf = (extendLeft) =>
  computeCrossDesign(section.samples, d.design_elevation_m, {
    groundType: d.ground_type,
    sectionMode: d.section_mode,
    ditchSide: d.ditch_side,
    ditchType: d.ditch_type ?? "standard",
    paved: !!d.paved,
    standard,
    shoulderExtendLeftM: extendLeft,
  });
const r3 = (v) => Math.round(v * 1000) / 1000;
const run = (extendLeft) => {
  const design = designOf(extendLeft);
  const s = { ...section, design };
  const layout = computeCulvertLayout(s, section.samples, undefined, "L");
  const wall = layout.walls.find((w) => w.role === "outlet");
  const edge = design.road_edges.left;
  return {
    edge: r3(edge.offset_m),
    extend: design.shoulder_extend_left_m ?? 0,
    pureHeight: r3(wall.height + REVET_EMBED_DEPTH_M),
    lengthM: layout.pipe.lengthM,
    cut: r3(cutLength(layout.pipeCorners)),
    slope: r3(layout.fillSlope.ratio),
  };
};
process.stdout.write(JSON.stringify({ base: run(0), shifted: run(1.0), shifted2: run(1.3) }));