/* 요구 280-3 원인 3 헬퍼 — 노선 초안 동안 초안 측점 맞춤(`withDraftStations` · `withDraftShapes`)이 상세의 틀을 앎.
 * old = 옛 노선 틀 상세(저장 정본 · 새로고침 첫 화면) → 새 틀 초안 대신 저장분으로 · new = 묶음이 갈아끼운 새 틀 →
 * 저장분(옛 틀) 종류와 같은 m 로 견주지 않음 · null = 옛 동작(대조). 진짜 TS: Drafts · 측점 계획 · 형상 얹기 · 표.
 * 결과 = 표준출력 JSON. 짝 = `test_280_3_route_undo_facilities.py`. */
const fs = require("fs");
const path = require("path");
const ROOT = path.join(__dirname, "..", "..");
const ts = require(path.join(ROOT, "config", "node_modules", "typescript"));
const CATALOG = require("./helper_322_catalog_module.cjs");

const S = {
  savedPipes: [],
  savedStructures: [],
  draftPipes: null,
  draftStructures: null,
  types: [],
};
const STUBS = {
  design_page_data: {
    forgetPageData: () => {},
    pagePipes: async () => ({ pipe_points: S.savedPipes }),
    pageStructures: async () => ({ structures: S.savedStructures }),
  },
  B05_Profile_Api_Structures: {
    fetchStructureTypes: async () => S.types,
    readPendingStructures: () => S.draftStructures,
  },
  B05_Profile_Api_Pipes_Draft: { readPendingPipes: () => S.draftPipes },
  B05_Profile_Api_PlusStations: { readPlusDraft: () => null },
  B06_Section_Station_Keys: { useStationKeys: () => {}, useStationOwners: () => {} },
  ui_template_elements: { showToast: () => {} },
};
const cache = new Map();
function resolveTs(base) {
  for (const c of [`${base}.ts`, base]) if (fs.existsSync(c) && fs.statSync(c).isFile()) return c;
  throw new Error(`없음: ${base}`);
}
function load(full) {
  if (cache.has(full)) return cache.get(full).exports;
  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
  }).outputText;
  const box = { exports: {} };
  cache.set(full, box);
  const req = (r0) => {
    if (CATALOG.isCatalogRequest(r0)) return CATALOG;
    const r = r0.replace(/\.js$/, "");
    const stub = STUBS[r.split("/").pop()];
    if (stub) return stub;
    if (r.endsWith(".json"))
      return JSON.parse(fs.readFileSync(path.join(path.dirname(full), r), "utf8"));
    if (r.startsWith("@util/")) return load(resolveTs(path.join(ROOT, "common_util", r.slice(6))));
    if (r.startsWith("@ui/")) return STUBS[r.split("/").pop()] ?? {};
    if (r.startsWith(".")) return load(resolveTs(path.join(path.dirname(full), r)));
    return require(r);
  };
  new Function("exports", "module", "require", js)(box.exports, box, req);
  return box.exports;
}
const P = (...a) => path.join(ROOT, ...a);
const D = load(P("B06_Section", "B06_Section_Section_Drafts.ts"));
const def = JSON.parse(
  fs.readFileSync(P("resources", "master_template", "구조물정의.json"), "utf8"),
);
S.types = def.types.map((t) => ({
  type_id: t.type_id,
  group: t.group,
  placement: t.placement,
  managed_by: t.managed_by,
  name: t.name,
  options: (t.options || []).map((o) => ({ key: o.key, label: o.label, default: o.default })),
}));

const sec = (m, kind, extra = {}) => ({
  station_id: `station_${String(Math.round(m * 1000)).padStart(12, "0")}`,
  chainage_m: m,
  label: "",
  kind,
  center_x: m,
  center_y: 0,
  center_z: 100,
  frame: { left_xy: [0, 1] },
  samples: [{ offset_m: 0, elevation_m: 100, valid: true }],
  design: { design_elevation_m: 100 },
  ...extra,
});
const detailOf = (marks, len = 300) => {
  const grid = [];
  for (let m = 0; m <= len; m += 20) grid.push(m);
  const all = [...new Set([...grid, ...marks.map((x) => x.m)])].sort((a, b) => a - b);
  const cross = all.map((m, i) => {
    const mk = marks.find((x) => x.m === m);
    const kind = i === 0 ? "bp" : i === all.length - 1 ? "ep" : mk ? "irregular" : "regular";
    return sec(m, kind, mk ? { structure: mk.title, ...(m % 20 === 0 ? { grid: true } : {}) } : {});
  });
  return { longitudinal: { length_m: len, stations: [] }, cross_sections: cross };
};
const show = (detail) =>
  detail.cross_sections
    .filter((s) => s.kind === "irregular" || s.structure || s.preview)
    .map(
      (s) =>
        `${s.chainage_m}:${s.kind}${s.grid ? "/grid" : ""}${s.preview ? "/preview" : ""}=${s.structure ?? "-"}[${Object.keys(
          s,
        )
          .filter(
            (k) =>
              ![
                "station_id",
                "chainage_m",
                "label",
                "kind",
                "center_x",
                "center_y",
                "center_z",
                "frame",
                "samples",
                "design",
                "structure",
                "grid",
                "preview",
              ].includes(k),
          )
          .join(",")}]`,
    );

const ud = (id, m) => ({
  structure_id: id,
  type_id: "cross_underdrain",
  placement: "point",
  chainage_m: m,
  start_m: null,
  end_m: null,
  options: {},
});
const rw = (id, s, a, e) => ({
  structure_id: id,
  type_id: "retaining_wall",
  placement: "interval",
  chainage_m: a,
  start_m: s,
  end_m: e,
  options: {},
});

/** 상세 하나를 맞춘 뒤 — 숨김(빠진 측점) · 구조물 없는 사본 · 측점마다 카드 이름. */
async function run(saved, draft, marks, frame) {
  S.savedStructures = saved;
  S.draftStructures = draft;
  const detail = detailOf(marks);
  const before = detail.cross_sections.map((s) => s.chainage_m);
  await D.withDraftStations(detail, "p", 1, frame);
  await D.withDraftShapes(detail, "p", false, frame);
  const after = detail.cross_sections.map((s) => s.chainage_m);
  return {
    hidden: before.filter((m) => !after.includes(m)),
    preview: detail.cross_sections.filter((s) => s.preview).map((s) => s.chainage_m),
    names: Object.fromEntries(
      detail.cross_sections.filter((s) => s.structure).map((s) => [s.chainage_m, s.structure]),
    ),
  };
}

(async () => {
  const out = {};
  // 옛 틀 상세(저장 정본 · 새로고침) + 새 틀 초안(+20 m) — 저장분 자리 그대로여야 함
  const oldFrame = [ud("A", 100), rw("B", 153, 160, 167)];
  const oldMarks = [
    { m: 100, title: "맹암거" },
    { m: 153, title: "옹벽" },
    { m: 160, title: "옹벽" },
    { m: 167, title: "옹벽" },
  ];
  const shifted = [ud("A", 120), rw("B", 173, 180, 187)];
  for (const frame of ["old", null])
    out[`old_${frame}`] = await run(oldFrame, shifted, oldMarks, frame);
  // 새 틀 상세(갈아끼움 뒤) — 옛 틀 B 중심 120 자리에 새 틀 A 가 옴(종류 다름) · 사본 · 숨김 없어야 함
  const savedB = [ud("A", 100), rw("B", 113, 120, 127)];
  const draftB = [ud("A", 120), rw("B", 133, 140, 147)];
  const newMarks = [
    { m: 120, title: "맹암거" },
    { m: 133, title: "옹벽" },
    { m: 140, title: "옹벽" },
    { m: 147, title: "옹벽" },
  ];
  for (const frame of ["new", null])
    out[`new_${frame}`] = await run(savedB, draftB, newMarks, frame);
  process.stdout.write(JSON.stringify(out));
})().catch((error) => {
  process.stderr.write(String(error && error.stack ? error.stack : error));
  process.exit(1);
});