/* 467 덧 헬퍼 — 횡단 고름(단추 · 노견 확장 · 소단 깊이 · 암 경계)을 세션에 쓰고 다시 셈 → 세션 칸을 지움(↶) →
 * 다시 셈 = 고르기 전(정본) 설계와 같은가 · 다시 씀(↷) = 고른 값과 같은가.
 *   node helper_272_choice_undo.mjs <묶음.mjs> <job.json>
 * job = { standard, rockDefault, ground } · 짝 = `test_272_choice_undo.py` · 표준출력 JSON 한 벌.
 */
import { readFileSync } from "node:fs";
import { pathToFileURL } from "node:url";

const memory = () => {
  const m = new Map();
  return {
    getItem: (k) => (m.has(k) ? m.get(k) : null),
    setItem: (k, v) => m.set(k, String(v)),
    removeItem: (k) => m.delete(k),
    key: (i) => [...m.keys()][i] ?? null,
    get length() {
      return m.size;
    },
    clear: () => m.clear(),
  };
};
globalThis.window = globalThis;
globalThis.sessionStorage = memory();
globalThis.localStorage = memory();
const any = new Proxy(function () {}, {
  get: (_t, k) => (k === Symbol.toPrimitive ? () => 0 : any),
  apply: () => any,
  construct: () => any,
});
globalThis.document = any;
globalThis.requestAnimationFrame = (run) => setTimeout(run, 0);
globalThis.fetch = async () => new Response("{}", { status: 404 });

const m = await import(pathToFileURL(process.argv[2]).href);
const job = JSON.parse(readFileSync(process.argv[3], "utf8"));
const P = "p272undo";
const R = 6;
const AT = 40;
m.writeState("std-cross", job.standard, P);
m.rememberRockBoundaryDefault(P, job.rockDefault);
// 소단 사본 = 측점을 덮는 구간(소단 깊이가 먹게)
m.writeState(
  "berm",
  [{ start_m: 0, end_m: 100, width_m: 1, interval_m: 3, slope_deg: 0, depth_m: 1 }],
  P,
  R,
);
const canonDetail = () => ({
  longitudinal: { length_m: 100, stations: [], profile_alignment: { policy: {} } },
  cross_sections: [
    {
      station_id: "station_000000040000",
      chainage_m: AT,
      label: "",
      kind: "regular",
      center_z: 100,
      azimuth_deg: 90,
      center_x: AT,
      center_y: 0,
      frame: { left_xy: [0, 1] },
      uphill_side: "left",
      samples: job.ground,
      design: {
        design_elevation_m: 100,
        ground_type: "soil",
        section_mode: "left_cut",
        ditch_type: "standard",
        ditch_side: "left",
        ditch_choice: null,
        two_stage_slope: false,
      },
    },
  ],
});
m.writeState("section-detail", canonDetail(), P, R); // 저장 정본(세션 상세)
const alignment = {
  stations: [{ chainage_m: AT, plan_elevation_m: 100.4 }],
  samples: [
    { chainage_m: 0, elevation_m: 100.4 },
    { chainage_m: 100000, elevation_m: 100.4 },
  ],
  balance: { cut_area_m2: 0, fill_area_m2: 0, net_area_m2: 0 },
};
const detail = canonDetail(); // 메모리 상세(가게가 쥔 객체)
const refresh = async (target = detail) => {
  await m.refreshCrossDesigns({
    projectId: P,
    routeId: R,
    detail: target,
    edits: { station_offsets: {}, curve_radii: {} },
    alignment,
  });
  return JSON.stringify(target.cross_sections[0].design);
};
const clear = (name) => sessionStorage.removeItem(m.stateKey(name, P, R));

const pristine = await refresh(canonDetail()); // 고르기 전 = 정본으로 셈
await refresh(); // 메모리 상세 한 번(측점 열쇠 세움)
const out = { pristineSame: (await refresh()) === pristine, cases: {} };
const CASES = {
  choice: [
    () =>
      m.writeCrossDesignChoice(P, R, AT, {
        ground_type: "blasting_rock",
        section_mode: "right_cut",
        ditch_side: "right",
        ditch_type: "standard",
        paved: false,
        two_stage_slope: true,
        ditch_choice: false,
      }),
    "crossdesign",
  ],
  shoulder: [() => m.writeShoulderExtend(P, R, AT, "left", 1.2), "shoulderext"],
  bermDepth: [() => m.writeBermDepth(P, R, AT, "left", 2.5), "bermdepth"],
  rock: [() => m.writeKeyed("rockb", P, R, new Map([["40.00", 3.5]]), ["40.00"]), "rockb"],
};
for (const [name, [write, state]] of Object.entries(CASES)) {
  write();
  const picked = await refresh();
  clear(state); // ↶ = 세션 칸 지움
  const undone = await refresh();
  write(); // ↷ = 다시 고름
  const redone = await refresh();
  clear(state);
  const again = await refresh();
  out.cases[name] = {
    changed: picked !== pristine,
    undoIsCanon: undone === pristine,
    redoIsPicked: redone === picked,
    undoAgain: again === pristine,
  };
}
process.stdout.write(JSON.stringify(out));