/* 290-1 다른 프로젝트 열면 그 밖 프로젝트 캐시 지움 — 진짜 TS(b_page_state · b_project_switch)를
 * 가짜 저장소 위에서 돌려 JSON 으로 냄(공용 storage · 브라우저 안 씀). */
const fs = require("fs");
const path = require("path");
const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));

const ROOT = path.join(__dirname, "..", "..");
const load = (rel, requireStub) => {
  const js = ts.transpileModule(fs.readFileSync(path.join(ROOT, rel), "utf8"), {
    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
  }).outputText;
  const exports = {};
  new Function("exports", "require", "window", js)(exports, requireStub, global.window);
  return exports;
};

function fakeStorage() {
  const map = new Map();
  return {
    get length() {
      return map.size;
    },
    key: (i) => [...map.keys()][i] ?? null,
    getItem: (k) => (map.has(k) ? map.get(k) : null),
    setItem: (k, v) => map.set(k, String(v)),
    removeItem: (k) => map.delete(k),
    dump: () => Object.fromEntries(map),
  };
}
global.window = { sessionStorage: fakeStorage(), localStorage: fakeStorage() };

const pageState = load("A00_Common/b_page_state.ts", () => ({}));
const asked = [];
const purged = [];
let answer = true;
const sw = load("A00_Common/b_project_switch.ts", (id) => {
  if (id.includes("b_page_state")) return pageState;
  if (id.includes("b_asset_cache")) return { purgeOtherProjects: async (p) => purged.push(p) };
  return {
    showConfirmDialog: async (msg, ok, cancel) => (asked.push([msg, ok, cancel]), answer),
  };
});

const A = "aaaa1111";
const B = "bbbb2222";
const C = "cccc3333";
const SEED = {
  [`aislo:draft:structures:${A}`]: '[{"id":1}]',
  [`aislo:draft:crossw:${A}:12`]: '{"10":1}',
  [`b06:culvertopt:${A}:12`]: '{"x":1}', // 옛 키(초안)
  [`aislo:result:latest:${A}`]: '{"r":1}',
  [`aislo:draft:structures:${B}`]: '[{"id":2}]',
  [`aislo:result:section-detail:${B}:7`]: '{"d":1}',
  [`aislo:result:latest:${C}`]: '{"r":3}',
  [`aislo:draft:pipes:${C}`]: "{}", // 빈 초안 = 고침 없음
  [`b09:page-cache:${C}`]: "1", // 등록표 밖 페이지 칸
  "aislo.otp-pending": "x", // 프로젝트와 무관
};
const seed = (extra = {}) => {
  global.window.sessionStorage = fakeStorage();
  Object.entries({ ...SEED, ...extra }).forEach(([k, v]) =>
    global.window.sessionStorage.setItem(k, v),
  );
  asked.length = 0;
  purged.length = 0;
};
const keys = () => Object.keys(global.window.sessionStorage.dump()).sort();
const nameOf = async (id) => `이름-${id}`;
global.window.localStorage.setItem(`aislo:pref:routeedit-view:${A}`, "{}");

(async () => {
  const out = {};
  seed();
  answer = true;
  await sw.enterProject(B, nameOf);
  out.drop = { keys: keys(), asked: [...asked], purged: [...purged] };

  seed();
  answer = false;
  await sw.enterProject(B, nameOf);
  out.keep = { keys: keys(), asked: asked.length };

  seed({ "aislo:entered-project": B });
  await sw.enterProject(B, nameOf);
  out.same = { keys: keys(), asked: asked.length, purged: purged.length };

  out.pref = global.window.localStorage.getItem(`aislo:pref:routeedit-view:${A}`);
  out.plan = sw.planProjectPurge(SEED, B).draftProjects;
  process.stdout.write(JSON.stringify(out));
})();