/* 횡단 보기 반폭 [적용](PLAN 173-6) 단위검증 헬퍼 — `createSampleWidener` 를 그 자리에서 트랜스파일해 돌린다.
 * 보유 샘플(20 m) 안 요청은 재생성 없이 true · 넘는 요청만 재생성 한 번. 결과는 표준출력에 JSON 한 벌.
 * 짝 = `test_173_6_half_width_apply.py`.
 */
const fs = require("fs");
const path = require("path");
const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));

const ROOT = path.join(__dirname, "..", "..");
const calls = { regenerate: [], overlay: 0 };
const STUBS = {
  "@ui/ui_template_locale": {
    currentLanguageIndex: 0,
    ui_locales: new Proxy({}, { get: () => [""] }),
  },
  "@ui/ui_template_elements": {
    showLoadingOverlay: () => calls.overlay++,
    hideLoadingOverlay: () => {},
    showToast: () => {},
  },
  "./B06_Section_Api_Fetch": {
    regenerateSections: async (_p, _r, width) => calls.regenerate.push(width),
    fetchSectionDetail: async () => ({ cross_sections: [] }),
  },
  "./B06_Section_Section_Store": { replaceSectionDetail: () => {} },
};

const file = path.join(ROOT, "B06_Section", "B06_Section_UI_Page_Common.ts");
const js = ts.transpileModule(fs.readFileSync(file, "utf8"), {
  compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
}).outputText;
const box = { exports: {} };
new Function("exports", "module", "require", js)(box.exports, box, (r) => STUBS[r]);

(async () => {
  let sampled = 20;
  const widen = box.exports.createSampleWidener({
    target: () => ({ projectId: "p", routeId: 1 }),
    sampledHalfWidth: () => sampled,
    applyDetail: () => (sampled = calls.regenerate.at(-1)),
  });
  const out = {};
  out.within = [await widen(10), await widen(15), await widen(20)];
  out.withinCalls = calls.regenerate.length;
  out.over = await widen(25);
  out.overCalls = [...calls.regenerate];
  out.again = await widen(25); // 넓힌 뒤 같은 값은 재생성 없음
  out.againCalls = calls.regenerate.length;
  process.stdout.write(JSON.stringify(out));
})();