/* PLAN 449 헬퍼 — [저장] 관 차례 · 노선 저장 뒤 실패(433-7 · 433-12). 실제 `design_save.ts` · 관 초안 창구 · 가게를
 * Node 로 · 서버 창구 · 계획고 초안 · 노선 편집 창구만 가짜. 짝 = `test_449_save_pipes.py`. */
const fs = require("fs");
const path = require("path");
const { makeLoader } = require("./helper_ts_stub_loader.cjs");
const CATALOG = require("./helper_322_catalog_module.cjs");

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

const STUBS = { "/design_leave": { designSignature: () => "", markDesignClean: () => undefined } };
const { load, loadTs } = makeLoader({
  root: ROOT,
  requireFor: (full) => (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("@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);
  },
});

let calls = [];
let failAt = null; // 이 차례에서 throw
let routeBody = null;
const alignment = new Map(); // 노선 칸 → 계획고 초안
STUBS["ui_template_elements"] = {
  showLoadingOverlay: () => undefined,
  hideLoadingOverlay: () => undefined,
  showToast: () => undefined,
};
const failing = (name) => {
  if (failAt === name) throw new Error(`${name} 409`);
};
STUBS["B04_PreProcess_Api_Fetch"] = {
  fetchDetailPipePoints: async () => (calls.push(["GET"]), { pipe_points: [] }),
  saveDetailPipePoints: async (_projectId, points, recompute) => {
    calls.push(["PUT", points ?? null, !!recompute]);
    return {};
  },
};
STUBS["B05_Profile_Api_Structures"] = {
  flushPendingStructures: async () => failing("structures"),
  structuresPart: async () => null,
  readPendingStructures: () => null, // 구조물 초안 없음 — 노선 저장 뒤 얹기(459) 안 돎
};
STUBS["B05_Profile_Api_PlusStations"] = {
  outsideNotice: () => "",
  plusStationsPart: () => ({ body: null }),
};
STUBS["B05_Profile_Api_Fetch"] = {
  flushUphillOverrides: async () => undefined,
  flushRouteParts: async () => undefined, // 상단측 차례(463)
  routePartsBody: async () => ({}),
  saveProfileAlignment: async (_projectId, routeId, draft) => {
    calls.push(["ALIGN", routeId, draft]);
    return {};
  },
};
STUBS["B05_Profile_UI_Profile_Edit"] = {
  pendingAlignment: (routeId) => alignment.get(routeId) ?? null,
  markAlignmentSaved: (routeId) => alignment.delete(routeId),
  writeAlignmentDraft: (routeId, edits) => alignment.set(routeId, edits),
};
STUBS["B06_Section_Api_Culvert_Options"] = {
  flushCulvertOptions: async () => undefined,
  culvertOptionsPart: () => null,
};
// 472-6 한 본문 창구 — 관 칸 · 계획고 칸만 적음(옛 PUT 줄과 같은 꼴)
STUBS["design_save_api"] = {
  SAVE_PART_KEYS: [
    "settings",
    "pipes",
    "structures",
    "plusStations",
    "alignment",
    "culvertOptions",
    "uphill",
    "cross",
  ],
  DesignSaveError: class extends Error {
    constructor(message, step, restored) {
      super(message);
      this.step = step;
      this.restored = restored;
    }
  },
  postDesignSave: async (_projectId, routeId, confirm, parts, extra = {}) => {
    const pipes = parts.pipes?.body;
    calls.push([
      "SAVE",
      pipes === undefined || pipes === null ? "none" : (pipes.points ?? null),
      confirm,
      ...(extra.route ? ["ROUTE"] : []),
    ]);
    const align = parts.alignment?.body;
    if (align) {
      const { route_id: _id, ...draft } = align;
      calls.push(["ALIGN", routeId, draft]);
    }
    // 472-6 6-B — 서버가 그 차례에서 실패 = 노선까지 되돌림(전부 아니면 없음)
    const Err = STUBS["design_save_api"].DesignSaveError;
    if (failAt) throw new Err(`${failAt} 409`, failAt, true);
    return { waited: false, steps: extra.route ? { route: { route_id: 8 } } : {} };
  },
};
STUBS["B05_Profile_UI_RouteEdit_Apply"] = {
  pendingRouteSave: async () => routeBody,
  routeCarryPart: (_projectId, from) => ({ carry: { from }, cross: { body: {} } }),
  routeSaved: () => void calls.push(["ROUTE_SAVED"]),
  routeSaveSummary: () => "",
  rebuildAfterRouteSave: async () => void calls.push(["REBUILD"]),
};
const save = load("A00_Common", "design", "design_save.ts");
const drafts = load("B05_Profile", "B05_Profile_Api_Pipes_Draft.ts");

const P = "proj-449";
async function once({ route = false, draft = null, confirm = false, fail = null, routeId = 7 }) {
  calls = [];
  failAt = fail;
  routeBody = route ? { draft: {} } : null;
  drafts.writePendingPipes(P, draft);
  let failure = null;
  const ok = await save.saveDesign(
    {
      projectId: P,
      routeId: () => routeId,
      // 화면 몫 = 배수판 다시 받기(PUT 없음) — 433-7 뒤 design_shared 와 같음
      parts: {
        pipes: (base) => ({
          body: base?.body ?? null,
          after: async (response) => {
            await base?.after?.(response);
            calls.push(["RELOAD"]);
          },
        }),
      },
      crossPart: async () => ({ body: {} }),
      failed: (error) => (failure = String(error && error.message ? error.message : error)),
    },
    { confirm },
  );
  return { ok, failure, calls, left: drafts.readPendingPipes(P) };
}

async function run() {
  window.localStorage.setItem("frd_current_project_id", P);
  const fifteen = [{ chainage_m: 15, source: "user", id: "p1" }];
  const out = {};
  out.draft = await once({ draft: fifteen }); // B06 고침 직후 [저장] = 초안 값
  out.noDraft = await once({}); // 판 안 섬 · 초안 없음 = PUT 없음
  out.confirmNoDraft = await once({ confirm: true }); // [확정] = 칸 없이(서버 저장분)
  out.emptyDraft = await once({ draft: [] }); // 사용자가 다 지움 = 빈 목록
  // 433-12 — 노선 저장 뒤 구조물 실패 → 0 칸 계획고가 새 노선 칸에 · 다음 [저장]이 보냄
  alignment.clear();
  alignment.set(0, { pvi: { 120: 1.5 } });
  out.routeFail = await once({ route: true, fail: "structures" });
  out.alignAfterFail = Object.fromEntries(alignment);
  out.nextSave = await once({ route: true }); // 다음 [저장] = 같은 초안 그대로 다시
  // 472-6 6-B — 횡단 넘김(서버 Node) 실패도 노선까지 되돌림 · 화면은 그대로
  alignment.clear();
  out.carryFail = await once({ route: true, fail: "cross" });
  return out;
}

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);
  });