/* 443-2 헬퍼 — vite ssr 로 묶은 진짜 모듈(helper_443_2_entry.ts)을 부르고 결과를 JSON 한 벌로.
 *   node helper_443_2_uphill_carry.mjs <묶음.mjs>
 */
import { pathToFileURL } from "node:url";

const store = () => {
  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 = store();
globalThis.localStorage = store();
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);

const m = await import(pathToFileURL(process.argv[2]).href);
const P = "p443";
const grid = (pairs) => pairs.map(([key, chainageM]) => ({ key, chainageM }));
// 옛 노선 = 20 m 일반측점 넷 · 새 노선 = 같은 번호가 밀림(21.5 · 43) · grid:3(60 m) 사라짐
m.useStationKeyList(
  P,
  7,
  grid([
    ["end:BP", 0],
    ["grid:1", 20],
    ["grid:2", 40],
    ["grid:3", 60],
  ]),
);
m.useStationKeyList(
  P,
  8,
  grid([
    ["end:BP", 0],
    ["grid:1", 21.5],
    ["grid:2", 43],
  ]),
);
m.writeState("uphill", { "20.000": "right", "40.000": "left", "60.000": "right" }, P);
const outside = m.carryChainageStates(P, 7, 8);
const moved = m.readState("uphill", P);
// 세션이 없으면 그대로(빈 칸 안 만듦)
m.writeState("uphill", null, P);
const outsideEmpty = m.carryChainageStates(P, 7, 8);
process.stdout.write(
  JSON.stringify({ outside, moved, outsideEmpty, empty: m.readState("uphill", P) }),
);