/* PLAN 349-0k sub7 헬퍼 — 열기 → 노선 꼭짓점 끌기 → 되돌리기(초안 버림)면 상세 = 열 때 저장 정본 그대로.
 * 진짜 TS(`design_pipeline_page` · 단계 파일 · 상세 가게 `B06_Section_Section_Store`)를 트랜스파일해 Node 로 ·
 * 서버 창구만 가짜. 종단 보기 고리 흉내 = `design_view_profile_sections.followSwap`(가게 stations → 갈아끼움 ·
 * 새 상세 → render) · `design_view_profile` 의 `holdDraft`(초안 전 상태 · 되돌림) 그대로. 초안 동안 갈아끼운 횡단은
 * 브라우저 다시 셈 흉내로 면적을 바꿔 둠(옛 길이면 되돌린 뒤 그 값이 남음).
 * 입력 argv[2] JSON · argv[3] 격자 이진. 결과 = 표준출력 JSON. 짝 = `test_349_0k_undo_saved.py`. */
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 job = JSON.parse(fs.readFileSync(process.argv[2], "utf8"));

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;
    },
  };
}
globalThis.window = {
  sessionStorage: memoryStorage(),
  localStorage: memoryStorage(),
  setTimeout,
  clearTimeout,
};

// 흙 배분 서버 — 늦게 답함 · 끊기면 버림
globalThis.fetch = (url, init) =>
  new Promise((resolve, reject) => {
    const timer = setTimeout(
      () => resolve({ ok: true, json: async () => ({ haul_plan: { blocks: [], url } }) }),
      20,
    );
    init.signal.addEventListener("abort", () => {
      clearTimeout(timer);
      reject(new Error("aborted"));
    });
  });

const STUBS = {};
const cache = new Map();
function loadTs(full) {
  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 (CATALOG.isCatalogRequest(request)) return CATALOG;
    const key = Object.keys(STUBS).find((name) => request.endsWith(name));
    if (key) return STUBS[key];
    if (request.startsWith("@config/")) return { API_BASE_URL: "http://fake" };
    if (request.startsWith("@ui/")) return { showToast: () => undefined };
    if (request.endsWith(".css")) return {};
    if (request.endsWith(".json")) return require(path.join(path.dirname(full), request));
    if (request.startsWith("@util/"))
      return loadTs(path.join(ROOT, "common_util", `${request.slice(6)}.ts`));
    if (request.startsWith(".")) return loadTs(path.join(path.dirname(full), `${request}.ts`));
    return require(request);
  };
  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
  return box.exports;
}
const load = (...parts) => loadTs(path.join(ROOT, ...parts));

const sampler = load("common_util", "common_util_surface_sampler.ts");
const bytes = fs.readFileSync(process.argv[3]);
const grid = sampler.parseDtmGrid(
  bytes.buffer.slice(bytes.byteOffset, bytes.byteOffset + bytes.length),
);
const local = { grid, design: "las" };

STUBS["B05_Profile_Api_Replan"] = {
  analysisTerrain: () => "las",
  fetchRoutePlan: async () => ({
    planned: job.line,
    curves: job.curves,
    min_radius_m: job.minRadius,
    station_snap: job.stationSnap,
  }),
};
STUBS["B05_Profile_Api_Structures"] = {
  fetchStructures: async () => ({ structures: [] }),
  fetchStructureTypes: async () => job.types,
  readPendingStructures: () => null,
};
STUBS["B05_Profile_Api_TerrainGrid"] = {
  loadDesignTerrainGrid: async () => local,
  groundStageDeps: () => ({ grid: () => local, remote: async () => [] }),
};
STUBS["B04_PreProcess_Api_Fetch"] = {
  fetchDetailPipePoints: async () => ({
    pipe_points: job.pipes.map((pipe) => ({ ...pipe, lonlat: [0, 0] })),
  }),
};
STUBS["B06_Section_UI_Standard_Panel"] = {
  effectiveStandardCross: () => job.standard,
  readRockBoundaryDefault: () => -0.5,
};

// 구조물 초안 얹기(측점 계획 · 형상) — 이 시험 밖 · 아무 일 없음
STUBS["B06_Section_Section_Drafts"] = {
  withDraftStations: async () => undefined,
  withDraftShapes: async () => undefined,
  forgetDraftStations: () => undefined,
};
STUBS["B06_Section_Api_Fetch"] = {
  fetchSectionDetail: async () => JSON.parse(JSON.stringify(job.detail)),
  saveSections: async () => undefined,
};

const pageMod = load("A00_Common", "design", "design_pipeline_page.ts");
const storeMod = load("A00_Common", "design", "design_store.ts");
const sectionStore = load("B06_Section", "B06_Section_Section_Store.ts");
const alignment = load("B05_Profile", "logic", "B05_Profile_UI_Profile_Alignment.ts");
const massHaul = load("common_util", "common_util_mass_haul.ts");

const tick = (ms = 0) => new Promise((resolve) => setTimeout(resolve, ms));
const runs = () => globalThis.__aisloPipeline?.runs ?? [];
/** 묶음 · 상세 가게가 조용해질 때까지 — 마지막 기록이 끝나고 새 기록이 더 안 생김. */
async function quiet() {
  let seen = -1;
  for (let i = 0; i < 400; i += 1) {
    await tick(15);
    const last = runs()[runs().length - 1];
    const count = runs().length;
    if (count === seen && (!last || last.outcome !== "running")) return;
    seen = count;
  }
  throw new Error("묶음이 조용해지지 않음");
}
const n = job.nodes.length;
const draftOf = (nodes) => ({
  nodes,
  curveOn: Array(n).fill(true),
  curveRadius: Array(n).fill(null),
  curveLock: Array(n).fill(null),
  curveArc: Array(n).fill(null),
  stationSnap: job.stationSnap,
});
const shift = (index, dx, dy) =>
  job.nodes.map((node, i) => (i === index ? [node[0] + dx, node[1] + dy] : node));
const sliceRuns = (mark) =>
  runs()
    .slice(mark)
    .map((r) => ({ sources: r.sources, outcome: r.outcome }));
const finalOf = (detail) => {
  const [series] = massHaul.computeMassHaulSeries(
    detail.longitudinal,
    detail.cross_sections,
    job.conversion,
    undefined,
    ["cross"],
  );
  const points = series?.result.points ?? [];
  return points.length ? points[points.length - 1].cumulative_volume_m3 : null;
};
const crossOf = (detail) =>
  JSON.stringify(detail.cross_sections.map((s) => [s.chainage_m, s.design, s.samples]));
/** 브라우저 다시 셈 흉내 — 면적 칸(`*_m2`)을 두 배로(카드 · 종단도가 갈아끼운 상세 횡단을 다시 셈). */
const recompute = (detail) =>
  detail.cross_sections.forEach((section) => {
    if (!section.design) return;
    const design = { ...section.design };
    for (const [key, value] of Object.entries(design))
      if (key.endsWith("_m2") && typeof value === "number") design[key] = value * 2;
    section.design = design;
  });

async function run() {
  const P = "proj-349k";
  const R = 7;
  window.localStorage.setItem("frd_current_project_id", P);
  const savedAlignment = job.detail.longitudinal.profile_alignment;
  const savedBase = alignment.toAlignmentBase(savedAlignment);
  let detail = await sectionStore.loadSectionDetail(P, R);
  const opened = detail;
  const link = {
    pipelineSource: () => ({ base: savedBase, edits: savedAlignment.edits, detail, routeId: R }),
    adoptPipeline: (base, edits, draft) =>
      pageMod.pipelineGrade(P, draft ? edits : savedAlignment.edits),
    redraw: () => undefined,
    side: null,
  };
  const swaps = [];
  const restores = [];
  pageMod.routeDraftBridge(P, link, {
    stationIntervalM: job.interval,
    // `design_view_profile` 의 holdDraft 그대로(349-0o)
    holdDraft: (routeId, saved) => {
      const hold = saved && sectionStore.holdSectionDetail(P, routeId, saved);
      return async (stations) => {
        if (!hold) {
          restores.push({ saved: false, back: null });
          await sectionStore.swapSectionStations(P, routeId, stations);
          return "no-saved";
        }
        const back = await sectionStore.restoreSectionDetail(P, routeId, hold, stations);
        restores.push({ saved: true, back: back ? { same: back.same } : null });
        return !back ? "no-cache" : back.same ? "saved" : "saved-diff";
      };
    },
  });
  // followSwap — 새 상세 → 종단도 render(처음부터 다시 · 비정규 측점) · 가게 stations → 갈아끼움
  const stopListen = sectionStore.subscribeSectionDetail(P, R, (next) => {
    swaps.push(next.cross_sections.length);
    detail = next;
    pageMod.restartPagePipeline(P);
    pageMod.restartPagePipeline(P);
  });
  const stopStore = storeMod.useDesignStore(P, null).subscribe("stations", (stations) => {
    if (stations?.length) void sectionStore.swapSectionStations(P, R, stations);
  });
  pageMod.pipelineEarthwork(P, { conversion: job.conversion });
  pageMod.restartPagePipeline(P);
  await quiet();
  const open = {
    runs: sliceRuns(0),
    stations: detail.cross_sections.map((s) => s.chainage_m),
    final: finalOf(detail),
    cross: crossOf(detail),
    same: detail === opened,
  };

  // 노선 꼭짓점 한 번 끌기 — 상세가 새 노선 측점으로 갈아끼워짐 · 그 횡단을 다시 셈
  let mark = runs().length;
  const bridge = pageMod.routeDraftBridge(P, link);
  bridge.edited(draftOf(shift(1, 6, -4)));
  await quiet();
  const cached = await sectionStore.loadSectionDetail(P, R);
  recompute(cached);
  const drag = {
    runs: sliceRuns(mark),
    swapped: cached !== opened && detail === cached,
    stations: cached.cross_sections.map((s) => s.chainage_m),
    final: finalOf(cached),
  };

  // 되돌리기 한 번(초안 버림)
  mark = runs().length;
  const swapMark = swaps.length;
  bridge.edited(null);
  await quiet();
  const back = await sectionStore.loadSectionDetail(P, R);
  const undo = {
    runs: sliceRuns(mark),
    restores,
    swaps: swaps.length - swapMark,
    sameObject: back === opened && detail === opened,
    stations: back.cross_sections.map((s) => s.chainage_m),
    final: finalOf(back),
    cross: crossOf(back),
  };
  // 되돌린 뒤 조용함 — 더 안 돎
  mark = runs().length;
  await quiet();
  const after = { runs: runs().length - mark, blocked: pageMod.pagePipeline(P).blockedWrites };
  stopListen();
  stopStore();
  pageMod.disposePagePipeline(P);
  return { open, drag, undo, after };
}

run()
  .then((out) => {
    process.stdout.write(JSON.stringify(out));
    process.exit(0);
  })
  .catch((error) => {
    process.stderr.write(String(error && error.stack ? error.stack : error));
    process.exit(1);
  });