/* 계획노선 편집 창 **측점 반폭 선 길이**(계획서 22-1) 단위검증 헬퍼 —
 * `B05_Profile_UI_RouteEdit_Cross.ts` 를 트랜스파일해 Node 로 돌린다.
 * 서버 묻기 · 그림 조각은 가짜로 채운다 — 「무슨 반폭을 묻고 · 무슨 반폭으로 선을 잡나」만 본다.
 */
const fs = require("fs");
const path = require("path");
const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
const ROOT = path.join(__dirname, "..", "..");

function memoryStorage() {
  const map = new Map();
  return {
    getItem: (key) => (map.has(key) ? map.get(key) : null),
    setItem: (key, value) => map.set(key, String(value)),
    removeItem: (key) => map.delete(key),
    key: (index) => [...map.keys()][index] ?? null,
    get length() {
      return map.size;
    },
  };
}
const session = memoryStorage();
Object.defineProperty(session, "length", { get: () => session._keys().length });
session._keys = () => {
  const keys = [];
  for (let i = 0; i < 1000; i += 1) {
    const key = session.key(i);
    if (key === null) break;
    keys.push(key);
  }
  return keys;
};
// `Object.keys(sessionStorage)` 가 저장된 키를 돌려주도록 실제 브라우저처럼 속성으로도 둔다.
const sessionProxy = new Proxy(session, {
  ownKeys: () => [...new Set(session._keys())],
  getOwnPropertyDescriptor: (target, key) =>
    session._keys().includes(key)
      ? { enumerable: true, configurable: true, value: target.getItem(key) }
      : Reflect.getOwnPropertyDescriptor(target, key),
});
globalThis.window = { localStorage: memoryStorage(), sessionStorage: sessionProxy };

const fakeEl = () => ({
  className: "",
  textContent: "",
  innerHTML: "",
  querySelector: () => fakeEl(),
  replaceChildren() {},
  append() {},
  getBoundingClientRect: () => ({ width: 300, height: 200 }),
});
globalThis.document = { createElement: fakeEl };

const asked = [];
const STUBS = {
  "../A00_Common/b_svg_zoom_pan": { attachSvgZoomPan: () => {} },
  "../common_util/common_util_station": { stationLabel: (m) => String(m) },
  "./B05_Profile_UI_RouteEdit_Cross_Draw": {
    buildCrossSvg: () => ({ svg: {}, layer: {}, width: 1, height: 1, content: {} }),
    CROSS_PLOT_PAD: 0,
    summarizeCross: () => "",
  },
  // 서버 흉내 — 요청 반폭을 그대로 되돌려 주고, 없으면 기본 20.
  "./B05_Profile_Api_Replan": {
    fetchCrossPreview: async (_project, request) => {
      asked.push(request.cross_half_width_m ?? null);
      return {
        chainage_m: request.chainage_m,
        cross_half_width_m: request.cross_half_width_m ?? 20,
        samples: [],
        design: null,
      };
    },
  },
};

const cache = new Map();
function loadTs(file) {
  const full = path.resolve(file);
  if (cache.has(full)) return cache.get(full);
  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
  }).outputText;
  const box = { exports: {} };
  cache.set(full, box.exports);
  const localRequire = (request) => {
    if (STUBS[request]) return STUBS[request];
    if (request.startsWith(".")) return loadTs(path.join(path.dirname(full), `${request}.ts`));
    return require(request);
  };
  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
  cache.set(full, box.exports);
  return box.exports;
}

const { createCrossPreview } = loadTs(
  path.join(ROOT, "B05_Profile", "B05_Profile_UI_RouteEdit_Cross.ts"),
);

async function run() {
  const cross = createCrossPreview({
    projectId: "p-1",
    side: { append() {} },
    request: () => ({ vertices: [], min_radius_m: 12, station_interval_m: 20 }),
  });
  const out = {};
  out.before = cross.watched();
  await cross.open(100);
  out.empty = { asked: asked.at(-1), watched: cross.watched() };
  session.setItem("aislo:draft:cross-display:p-1:3", "15");
  await cross.refresh();
  out.applied15 = { asked: asked.at(-1), watched: cross.watched() };
  session.setItem("aislo:draft:cross-display:p-1:12", "8.5");
  session.setItem("aislo:draft:cross-display:p-2:99", "40");
  await cross.refresh();
  out.latestRoute = { asked: asked.at(-1), watched: cross.watched() };
  session.setItem("aislo:draft:cross-display:p-1:12", "abc");
  await cross.refresh();
  out.badValue = { asked: asked.at(-1), watched: cross.watched() };
  return out;
}
run().then((out) => console.log(JSON.stringify(out)));