/* 455 (433-13 ①) 종단 ▲▼ 자동 R — `B05_Profile_UI_Profile_Alignment.ts` adjustStation 을 Node 로 돌림.
 * ① 누른 꼭짓점 R = 저장 자동 R → 지움 · 곡선 L = 기본 L ② 사용자 R(저장분과 다름) → 그대로
 * ③ 자동 R 기준을 안 넘기면(옛 부름) → 그대로. 표준출력 = JSON.
 */
const fs = require("fs");
const path = require("path");
const { makeLoader } = require("./helper_ts_stub_loader.cjs");

const ROOT = path.join(__dirname, "..", "..");
const { loadTs } = makeLoader({
  root: ROOT,
});

const align = loadTs(
  path.join(ROOT, "B05_Profile", "logic", "B05_Profile_UI_Profile_Alignment.ts"),
);

// 20m 측점 · 100m 에 꺾임 하나(대수차 0.5 %)
const stations = Array.from({ length: 11 }, (_, i) => i * 20);
const ground = stations.map((s) => 100 + 0.02 * s + (s > 100 ? 0.005 * (s - 100) : 0));
const base = {
  policy: {
    station_interval_m: 20,
    curve_radius_ratio: 1,
    curve_tangent_max_ratio: 0.5,
    curve_skip_legal_exception: false,
    default_curve_length_m: 15,
    default_curve_radius_m: 300,
    balance_tolerance_percent: 10,
    edit_step_m: 0.1,
    grade_violation_policy: "warn",
    max_grade_pct: 14,
    curve_skip_delta_pct: 0,
    paved: true,
  },
  onlyExplicitCurves: false,
  basePvi: stations.map((s, i) => ({ chainage_m: s, elevation_m: ground[i] })),
  chainage: stations,
  ground,
  stations: stations.map((s) => ({ station_id: `S${s}`, chainage_m: s })),
};
const KEY = "100.000";
const AUTO = 15 / 0.005; // 관 정착이 역산한 꼴(R = L / A)

function press(radius, autoRadii) {
  const edits = { station_offsets: {}, curve_radii: { [KEY]: radius } };
  const next =
    autoRadii === undefined
      ? align.adjustStation(base, edits, 100, 0.1)
      : align.adjustStation(base, edits, 100, 0.1, autoRadii);
  const curve = align
    .buildAlignment(base, next)
    .curves.find((c) => Math.abs(c.chainage_m - 100) < 1e-6);
  return { radius: next.curve_radii[KEY] ?? null, length: curve ? curve.l_m : null };
}

process.stdout.write(
  JSON.stringify({
    auto: press(AUTO, { [KEY]: AUTO }),
    user: press(777, { [KEY]: AUTO }),
    legacy: press(AUTO),
  }),
);