/* 416 헬퍼 — 한 페이지 끊김 ② : 진짜 상세 가게(`B06_Section_Section_Store`) · 진짜 평면 횡단 판 자료
 * (`B05_Profile_UI_RouteEdit_Cross_Card.routeCrossSource`) · 진짜 관 길이(`design_structure_pipe_calc`) ·
 * 진짜 페이지 노선 칸. 서버 · 그림 · 묶음은 가짜. 짝 = `test_416_page_cache.py`.
 *   L2 — 판 = 페이지 노선 상세(더 큰 노선 번호 상세가 캐시에 있어도)
 *   M5 — 관 길이 = 공용 캐시(페이지 노선) · 저장 뒤 비우고 다시 받으면 새 값
 *   M1 — 비운 뒤 두 보기가 함께 받으면 같은 새 객체 하나
 *   암선 기본 = config(기억해 둔 context 값)
 */
const fs = require("fs");
const path = require("path");
const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
const CATALOG = require("./helper_322_catalog_module.cjs");

const ROOT = path.join(__dirname, "..", "..");
const P = "P416";

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

const anyModule = (extra = {}) =>
  new Proxy(extra, { get: (t, key) => (key in t ? t[key] : () => undefined) });

/** 가짜 서버 — 노선마다 관 길이 하나(40 m 측점 관) · 받을 때마다 새 객체 · 받은 수. */
const server = { pipeLength: { 3: 8, 9: 30 }, fetches: 0 };
const detailOf = (routeId) => ({
  longitudinal: { stations: [], design_profiles: [] },
  cross_sections: [0, 20, 40].map((chainage_m) => ({
    station_id: `r${routeId}-${chainage_m}`,
    chainage_m,
    samples: [],
    culvert: chainage_m === 40 ? { chainage_m: 40 } : undefined,
    design: { pipe_length_m: chainage_m === 40 ? server.pipeLength[routeId] : undefined },
  })),
});
let rockDefault = null; // 종단 보기가 기억한 context 값
let draftRoute = null; // 묶음 노선 초안

const STUBS = {
  "design_pipeline_page.ts": {
    reconcilePagePipeline: async () => 0,
    pipelineOwnsCross: () => false,
    pagePipeline: () => null,
    pipelineCross: () => undefined,
    pipelineDetail: () => null,
  },
  "design_pipeline_cross.ts": { forceCross: () => undefined },
  "B06_Section_Section_Drafts.ts": {
    forgetDraftStations: () => undefined,
    withDraftShapes: async () => undefined,
    withDraftStations: async () => undefined,
  },
  "B05_Profile_Api_PlusStations.ts": {
    loadSavedPlusStations: async () => undefined,
    plusStationsOf: () => [],
  },
  "B05_Profile_Api_Pipes_Draft.ts": { readPendingPipes: () => null },
  "design_page_data.ts": { pagePipes: async () => ({ pipe_points: [] }) },
  "B06_Section_Api_Fetch.ts": anyModule({
    fetchSectionDetail: async (_projectId, routeId) => {
      server.fetches += 1;
      return detailOf(routeId);
    },
  }),
  "B06_Section_Api_Culvert_Options.ts": anyModule({ STRUCTURE_ADJUST_KEYS: [] }),
  "B06_Section_Swap_Bus.ts": anyModule(),
  "B06_Section_Station_Keys.ts": anyModule({ KEYED_STATES: [] }),
  "B06_Section_UI_Page_Persist.ts": anyModule(),
  "B06_Section_UI_Standard_Panel.ts": anyModule({
    readRockBoundaryDefault: () => rockDefault,
  }),
  "B06_Section_Cross_Design_Session.ts": anyModule(),
  "common_util_cross_design.ts": anyModule(),
  "B06_Section_Structure_Layouts.ts": anyModule({ computeStoredLayouts: () => null }),
  "B06_Section_UI_Cross_Culvert_Wire.ts": anyModule(),
  "B06_Section_UI_Cross_Ford_Geom.ts": anyModule(),
  "B06_Section_UI_Cross_Box_Geom.ts": anyModule(),
  "B06_Section_UI_Cross_View.ts": anyModule(),
  "B06_Section_UI_Section_Common.ts": anyModule({ designElevationAt: () => undefined }),
  "B06_Section_Display_Width.ts": anyModule({ displayHalfWidth: () => 10 }),
  "B06_Section_UI_Style_Cross_Controls.css": {},
  "B06_Section_UI_Cross_Culvert_Basin.ts": anyModule(),
  "B06_Section_UI_Cross_Culvert_Const.ts": anyModule(),
  "B06_Section_UI_IrregularStations.ts": anyModule({ PIPE_DISPLAY_NAME: {} }),
  "B05_Profile_UI_IrregularStations.ts": anyModule({ PIPE_DISPLAY_NAME: {} }),
  "config_frontend.ts": anyModule({ PIPE_TYPES: [] }),
};

const cache = new Map();
const resolve = (base) =>
  [base, `${base}.ts`, path.join(base, "index.ts")].find(
    (p) => fs.existsSync(p) && fs.statSync(p).isFile(),
  ) ?? `${base}.ts`;
function loadTs(full) {
  const stub = STUBS[path.basename(full)];
  if (stub) return stub;
  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,
      esModuleInterop: true,
    },
  }).outputText;
  const box = { exports: {} };
  cache.set(full, box.exports);
  const near = (request) => {
    if (CATALOG.isCatalogRequest(request)) return CATALOG;
    const alias = { "@util/": "common_util", "@ui/": "ui_template", "@config/": "config" };
    for (const [prefix, dir] of Object.entries(alias))
      if (request.startsWith(prefix))
        return loadTs(resolve(path.join(ROOT, dir, request.slice(prefix.length))));
    return loadTs(resolve(path.join(path.dirname(full), request)));
  };
  new Function("exports", "module", "require", js)(box.exports, box, near);
  return box.exports;
}

const store = loadTs(path.join(ROOT, "B06_Section", "B06_Section_Section_Store.ts"));
const pageRoute = loadTs(path.join(ROOT, "A00_Common", "design", "design_page_route.ts"));
const pipeCalc = loadTs(path.join(ROOT, "A00_Common", "design", "design_structure_pipe_calc.ts"));
const card = loadTs(path.join(ROOT, "B05_Profile", "B05_Profile_UI_RouteEdit_Cross_Card.ts"));
const fakePipe = { input: (name) => (name === "route" ? draftRoute : null) };

async function run() {
  const out = {};
  // 열 때 — 페이지 노선 3 · 캐시에 더 큰 노선 9 도 있음(다른 탭 · 옛 판)
  pageRoute.setPageRouteId(P, 3);
  await store.loadSectionDetail(P, 9);
  const shown = await store.loadSectionDetail(P, 3);
  const source = card.routeCrossSource(P, fakePipe, 40, "cur");
  out.l2 = {
    station: source?.section.station_id ?? null,
    noRoute: store.peekSectionDetail(P, null),
    exact: store.peekSectionDetail(P, 3) === shown,
  };
  draftRoute = { v: 1 };
  out.l2.draftNoSaved = card.routeCrossSource(P, fakePipe, 40, "cur"); // 노선 초안 중 = 저장 상세 안 씀
  draftRoute = null;

  // 암선 기본 = config(기억값) · 기억 전 = 서버 Schema 기본과 같은 값
  out.rock = { pending: source.rockDefaultM };
  rockDefault = -0.8;
  out.rock.config = card.routeCrossSource(P, fakePipe, 40, "cur").rockDefaultM;

  // M5 — 관 길이 = 공용 캐시(페이지 노선) 한 벌(design_page 가 거는 그 함수)
  pipeCalc.setPipeSectionsSource(
    () => store.peekSectionDetail(P, pageRoute.pageRouteId(P))?.cross_sections ?? null,
  );
  out.m5 = { before: pipeCalc.pipeLengthM(40) };
  // [저장] — 서버가 관 길이를 다시 셈(8 → 11) · 한 벌이 캐시를 한 번 비움 → 두 보기가 함께 다시 받음
  server.pipeLength[3] = 11;
  store.invalidateSectionDetail(P);
  out.m5.cleared = pipeCalc.pipeLengthM(40);
  const fetchesBefore = server.fetches;
  const [profileView, crossView] = await Promise.all([
    store.loadSectionDetail(P, 3),
    store.loadSectionDetail(P, 3),
  ]);
  out.m1 = {
    sameObject: profileView === crossView,
    fetched: server.fetches - fetchesBefore,
    fresh: profileView !== shown,
    panelSeesFresh: card.routeCrossSource(P, fakePipe, 40, "cur")?.section.station_id ?? null,
  };
  out.m5.after = pipeCalc.pipeLengthM(40);
  return out;
}
run()
  .then((out) => console.log(JSON.stringify(out)))
  .catch((error) => {
    console.error(error);
    process.exit(1);
  });