/* 355-1 종단 ▲▼ 이웃 꺾임 축 돌림 단위검증 헬퍼 — `B05_Profile_UI_Profile_Alignment.ts` ·
 * `_Straighten.ts` 를 그 자리에서 트랜스파일해 세 경우를 Node 로 돌린다.
 * ① 처음 계획선 ▲ = 옛 값 ② 직선화 뒤 꺾임 ▲ = 사이 측점 한 직선 · 축 표고 그대로 · +0.1
 * ③ 직선 안 측점 ▲ = 그 점 새 꺾임 · 축 = 좌우 다음 꺾임(368-1) ④ 꼭짓점 아닌 자리 ▲ = 같은 규칙.
 * 옛 값 = 355-1 앞 adjustStation(아래 oldAdjust) 그대로.
 */
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 LOGIC = path.join(ROOT, "B05_Profile", "logic");
const align = loadTs(path.join(LOGIC, "B05_Profile_UI_Profile_Alignment.ts"));
const straight = loadTs(path.join(LOGIC, "B05_Profile_UI_Profile_Straighten.ts"));

// 전체 측점 폴리라인(20m 간격 · 0~200m) — 서버와 같이 꺾임마다 기본 L 라운드.
const stations = Array.from({ length: 11 }, (_, i) => i * 20);
const ground = stations.map((s, i) => 100 + 0.3 * i + (i % 2 ? 0.4 : 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 })),
};

/** 355-1 앞 adjustStation — 누른 측점 하나만 옮김. */
function oldAdjust(edits, chainageM, delta) {
  const key = align.chainageKey(chainageM);
  const current = align.buildAlignment(base, edits);
  const target = align.planElevationAt(current, chainageM) + delta;
  const baseElevation = straight.baseElevationAt(base, chainageM);
  let offset =
    (edits.station_offsets[key] ?? align.planElevationAt(current, chainageM) - baseElevation) +
    delta;
  const withOffset = (value) => ({
    ...edits,
    station_offsets: { ...edits.station_offsets, [key]: Number(value.toFixed(6)) },
  });
  let next = withOffset(offset);
  for (let pass = 0; pass < 4; pass += 1) {
    const error = target - align.planElevationAt(align.buildAlignment(base, next), chainageM);
    if (Math.abs(error) < 1e-4) break;
    offset += error;
    next = withOffset(offset);
  }
  return next;
}

const sorted = (record) =>
  Object.fromEntries(
    Object.keys(record ?? {})
      .sort()
      .map((key) => [key, record[key]]),
  );
const pviZ = (built, s) => built.pvi.find((n) => Math.abs(n.chainage_m - s) < 1e-6).elevation_m;
const out = {};

// ① 처음 계획선 — 마디마다 꺾임 → 축 = 누른 점 ±1 · 옛 값과 같음(▲ · ▼).
{
  const empty = align.emptyEdits();
  const up = align.adjustStation(base, empty, 100, 0.1);
  const down = align.adjustStation(base, empty, 60, -0.1);
  out.initial = {
    sameUp:
      JSON.stringify(sorted(up.station_offsets)) ===
      JSON.stringify(sorted(oldAdjust(empty, 100, 0.1).station_offsets)),
    sameDown:
      JSON.stringify(sorted(down.station_offsets)) ===
      JSON.stringify(sorted(oldAdjust(empty, 60, -0.1).station_offsets)),
    upKeys: Object.keys(up.station_offsets),
    radiiKeys: Object.keys(up.curve_radii ?? {}),
  };
}

// ② 40~100 · 100~160 직선화 → 100 = 꺾임 · 두 축 40 · 160 · ▲ 100.
{
  let edits = straight.straightenBetween(base, align.emptyEdits(), 40, 100);
  edits = straight.straightenBetween(base, edits, 100, 160);
  const before = align.buildAlignment(base, edits);
  const next = align.adjustStation(base, edits, 100, 0.1);
  const after = align.buildAlignment(base, next);
  const p = pviZ(after, 100);
  const line = (s, aM, aZ) => aZ + ((p - aZ) * (s - aM)) / (100 - aM);
  const z40 = pviZ(before, 40);
  const z160 = pviZ(before, 160);
  out.kink = {
    planRise: align.planElevationAt(after, 100) - align.planElevationAt(before, 100),
    pivotRise: p - pviZ(before, 100),
    axisMove: [pviZ(after, 40) - z40, pviZ(after, 160) - z160],
    outsideMove: [20, 180].map((s) => pviZ(after, s) - pviZ(before, s)),
    innerResidual: [60, 80]
      .map((s) => pviZ(after, s) - line(s, 40, z40))
      .concat([120, 140].map((s) => pviZ(after, s) - line(s, 160, z160))),
    innerMoved: [60, 80, 120, 140].map((s) => pviZ(after, s) - pviZ(before, s)),
    curvesAt: after.curves.map((c) => c.chainage_m).sort((a, b) => a - b),
    oldWouldBreak: (() => {
      const old = align.buildAlignment(base, oldAdjust(edits, 100, 0.1));
      return [80, 120].map((s) => pviZ(old, s) - pviZ(before, s));
    })(),
  };
}

/** 직선 안 점 ▲ — 축 40 · 100 그대로 · 사이 점 새 직선 위 · 누른 점 꺾임(368-1). */
function tiltInside(pressM, innerS) {
  let edits = straight.straightenBetween(base, align.emptyEdits(), 40, 100);
  edits = straight.straightenBetween(base, edits, 100, 160);
  const before = align.buildAlignment(base, edits);
  const next = align.adjustStation(base, edits, pressM, 0.1);
  const after = align.buildAlignment(base, next);
  const p = pviZ(after, pressM);
  const z40 = pviZ(before, 40);
  const z100 = pviZ(before, 100);
  const line = (s) =>
    s < pressM
      ? z40 + ((p - z40) * (s - 40)) / (pressM - 40)
      : z100 + ((p - z100) * (s - 100)) / (pressM - 100);
  return {
    planRise: align.planElevationAt(after, pressM) - align.planElevationAt(before, pressM),
    axisMove: [pviZ(after, 40) - z40, pviZ(after, 100) - z100],
    outsideMove: [20, 120, 140, 160].map((s) => pviZ(after, s) - pviZ(before, s)),
    innerResidual: innerS.map((s) => pviZ(after, s) - line(s)),
    innerMoved: innerS.map((s) => pviZ(after, s) - pviZ(before, s)),
    curveAtPress: after.curves.some((c) => Math.abs(c.chainage_m - pressM) < 1e-6),
    pressRadiusKey: Object.prototype.hasOwnProperty.call(
      next.curve_radii,
      align.chainageKey(pressM),
    ),
    innerRadiusKeys: innerS.filter((s) =>
      Object.prototype.hasOwnProperty.call(next.curve_radii, align.chainageKey(s)),
    ),
  };
}

// ③ 직선 안 측점(80 · 40~100 직선 위) — 80 새 꺾임 · 축 40 · 100 · 60 새 직선 위.
out.inside = tiltInside(80, [60]);

// ④ 꼭짓점 아닌 자리(70) — 같은 규칙 · 60 · 80 새 직선 위.
out.between = tiltInside(70, [60, 80]);

process.stdout.write(JSON.stringify(out));