/* PLAN 152-4 단위검증 헬퍼 — B06 도수로 · 돌붙임 띠 고름 · 강조(118-1 관 고름 꼴) · 조정창 숨김 · 3D chute 키.
 * 화면 TS 를 그 자리에서 트랜스파일해 흉내 DOM 에서 돌림 · 결과 = 표준출력 JSON 한 벌.
 * 입력 = `fixtures/b07_cross_overlay_sections.json` 배관 측점(도수로 상자를 붙인 사본). 짝 = `test_152_4_chute_pick.py`.
 */
const fs = require("fs");
const path = require("path");
const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));

const ROOT = path.join(__dirname, "..", "..");
const cache = new Map();
let STUBS = {
  "@ui/ui_template_toast": { showToast: () => undefined },
  "@ui/ui_template_elements": { showToast: () => undefined },
};

// ── 화면 그릇 흉내 — 오버레이 · 조정창이 쓰는 만큼만 ─────────────────────────
class FakeNode {
  constructor(tag) {
    this.tagName = String(tag).toUpperCase();
    this.children = [];
    this.attrs = {};
    this.dataset = {};
    this.listeners = {};
    this._text = "";
    this._classes = new Set();
    const self = this;
    this.classList = {
      add: (...names) => names.forEach((n) => self._classes.add(n)),
      remove: (...names) => names.forEach((n) => self._classes.delete(n)),
      toggle: (name, force) => {
        const on = force === undefined ? !self._classes.has(name) : !!force;
        on ? self._classes.add(name) : self._classes.delete(name);
        return on;
      },
      contains: (name) => self._classes.has(name),
    };
    this.style = { setProperty: () => {} };
  }
  set className(value) {
    this._classes = new Set(String(value).split(/\s+/).filter(Boolean));
  }
  get className() {
    return [...this._classes].join(" ");
  }
  set textContent(value) {
    this._text = String(value);
    this.children = [];
  }
  get textContent() {
    return this._text + this.children.map((c) => c.textContent).join("");
  }
  append(...kids) {
    kids.forEach((k) => this.children.push(k));
  }
  insertBefore(kid, ref) {
    const at = ref ? this.children.indexOf(ref) : -1;
    at < 0 ? this.children.push(kid) : this.children.splice(at, 0, kid);
    return kid;
  }
  appendChild(kid) {
    this.children.push(kid);
    return kid;
  }
  replaceChildren(...kids) {
    this.children = kids;
  }
  setAttribute(name, value) {
    this.attrs[name] = String(value);
    if (name === "class") this.className = value;
  }
  getAttribute(name) {
    return name === "class" ? this.className : (this.attrs[name] ?? null);
  }
  addEventListener(type, fn) {
    (this.listeners[type] ??= []).push(fn);
  }
  removeEventListener() {}
  click() {
    let stopped = false;
    const event = { stopPropagation: () => (stopped = true), preventDefault: () => {} };
    (this.listeners.click ?? []).forEach((fn) => fn(event));
    return stopped;
  }
  querySelectorAll(selector) {
    const found = [];
    const walk = (node) =>
      node.children.forEach((kid) => {
        if (kid.classList && kid.classList.contains(selector.slice(1))) found.push(kid);
        walk(kid);
      });
    walk(this);
    return found;
  }
  querySelector(selector) {
    return this.querySelectorAll(selector)[0] ?? null;
  }
  getClientRects() {
    return [];
  }
}
globalThis.document = {
  createElement: (tag) => new FakeNode(tag),
  createElementNS: (_ns, tag) => new FakeNode(tag),
  createComment: () => new FakeNode("#comment"),
  addEventListener: () => {},
  removeEventListener: () => {},
};
globalThis.window = { addEventListener: () => {}, removeEventListener: () => {} };
globalThis.requestAnimationFrame = (fn) => fn();

function loadTs(file) {
  const full = path.resolve(file);
  if (cache.has(full)) return cache.get(full);
  if (full.endsWith(".json")) {
    const data = JSON.parse(fs.readFileSync(full, "utf8"));
    cache.set(full, data);
    return data;
  }
  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 localRequire = (request) => {
    if (STUBS[request]) return STUBS[request];
    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, localRequire);
  cache.set(full, box.exports);
  return box.exports;
}
const resolve = (base) =>
  [base, `${base}.ts`, path.join(base, "index.ts")].find(
    (p) => fs.existsSync(p) && fs.statSync(p).isFile(),
  ) ?? `${base}.ts`;

const B06 = (f) => path.join(ROOT, "B06_Section", `${f}.ts`);
const { computeStoredLayouts } = loadTs(B06("B06_Section_Structure_Layouts"));
const { appendCulvertOverlay } = loadTs(B06("B06_Section_UI_Cross_Culvert"));
const { attachChuteBandPick } = loadTs(B06("B06_Section_UI_Cross_Wall_Hatch"));
const { applyStructurePick } = loadTs(B06("B06_Section_UI_Page_Structure_Pick"));

const fixture = JSON.parse(
  fs.readFileSync(path.join(__dirname, "fixtures", "b07_cross_overlay_sections.json"), "utf8"),
);
const sections = fixture.cross_sections;
const plain = sections.find((s) => s.culvert && !s.culvert.hidden_pipe);
const pipeSection = JSON.parse(JSON.stringify(plain));
pipeSection.culvert.chute = { structure: "돌붙임", thickness_m: 0.3 };
const listWith = sections.map((s) => (s === plain ? pipeSection : s));
const out = {};
const cls = (n) => n.className;

// ① 오버레이 + 띠 고름 — 판정면 차례 · 누름 · 강조
function draw(section, list, onPick) {
  const layer = new FakeNode("g");
  const layout = computeStoredLayouts(section, list).culvert;
  const setter = appendCulvertOverlay(
    layer,
    layout,
    (o) => -o * 10,
    (e) => -e * 10,
    () => {},
    false,
  );
  const picked = [];
  const setChute = attachChuteBandPick(layer, onPick ? () => picked.push("chute") : undefined);
  return { layer, setter, setChute, picked };
}
const drawn = draw(pipeSection, listWith, true);
const kids = drawn.layer.children;
const bands = kids.filter((n) => n.classList.contains("b06-chart__culvert-pitching"));
const hits = kids.filter((n) => n.classList.contains("b06-chart__culvert-revet-hit"));
const chuteHits = hits.filter((n) => n.classList.contains("b06-chart__chute-hit"));
const stopped = chuteHits[0].click();
drawn.setChute(true);
const on = bands.map((b) => b.classList.contains("is-active"));
drawn.setChute(false);
const off = bands.map((b) => b.classList.contains("is-active"));
out.overlay = {
  bands: bands.length,
  chuteHits: chuteHits.length,
  // 판정면 차례 — 띠 판정면이 관 · 벽 판정면보다 먼저(아래)
  hitOrder: hits.map((n) => (n.classList.contains("b06-chart__chute-hit") ? "chute" : "other")),
  sameShape: chuteHits.every((h, i) => h.attrs.points === bands[i].attrs.points),
  picked: drawn.picked,
  stopped,
  on,
  off,
};
// 고름 배선 없음(조작 없는 카드) — 판정면 없이 강조만 · 띠 없으면 null
const bare = draw(pipeSection, listWith, false);
out.bare = {
  hits: bare.layer.children.filter((n) => n.classList.contains("b06-chart__chute-hit")).length,
  setter: typeof bare.setChute,
};
out.noChute = draw(plain, sections, true).setChute === null;

// ② B05 3D 띠 고름(chute 키) → B06 고름 길로
const calls = [];
applyStructurePick(
  { at: pipeSection.chainage_m, key: "chute" },
  { cross_sections: [pipeSection] },
  {
    focusStation: () => {},
    refreshCard: () => {},
    revetSelect: (c, k) => calls.push(["revet", k]),
    fordSelect: (c, k) => calls.push(["ford", k]),
    boxSelect: (c, k) => calls.push(["box", k]),
  },
);
out.pick = calls;

// ③ 조정창 — show("chute") = 숨김 · side "chute"
const base = loadTs(B06("B06_Section_UI_Cross_Panel_Base"));
STUBS = {
  ...STUBS,
  "./B06_Section_UI_Section_Common": { L: (key) => key },
  "./B06_Section_UI_Cross_Panel_Base": {
    ...base,
    bindDragHandle: () => ({ attach: () => {}, detach: () => {} }),
  },
};
const { buildStructurePanel } = loadTs(B06("B06_Section_UI_Cross_Structure_Panel"));
const touched = [];
const spy = (name, value) => () => {
  touched.push(name);
  return value;
};
const panel = buildStructurePanel({
  scrollKey: "t152",
  adjustFor: spy("adjustFor", { x: 0, d: null, h: null, m: null }),
  nudge: spy("nudge"),
  nudgeSlope: spy("nudgeSlope"),
  nudgeHeight: spy("nudgeHeight"),
  heightFor: spy("heightFor", 2),
  formFor: spy("formFor", "돌쌓기(메)"),
  setForm: spy("setForm"),
  reset: spy("reset"),
  close: () => {},
  structureFor: () => "revet",
  basinAdjustFor: () => ({ innerWidthM: 1, innerHeightM: 1.2, lateralM: 0, slopeM: 0 }),
  updateBasin: () => {},
  nudgeBasinLateral: () => {},
  resetBasin: () => {},
  canNudge: spy("canNudge", true),
  fineMove: spy("fineMove", false),
  dragAxes: spy("dragAxes", null),
  extraState: () => ({ canAdd: false, count: 0 }),
  isLinkedCard: () => false,
  basinExtraState: () => ({ canAdd: false, count: 0 }),
  hiddenPipe: () => false,
  bodyGuard: () => false,
  setExtraCount: () => {},
  setBasinExtraCount: () => {},
  equalizeExtras: () => {},
  spanFor: spy("spanFor", null),
  setSpan: () => {},
  linkState: () => null,
  setLinked: () => {},
  followGrade: () => true,
  setFollowGrade: () => {},
});
panel.show("chute");
out.panel = {
  hidden: panel.root.classList.contains("is-hidden"),
  side: panel.root.dataset.side,
  touched,
};
process.stdout.write(JSON.stringify(out));