/* 요구 280-2 — 좌측 아래 [?] [<] [>] 헬퍼. `ui_template_help.ts` · `ui_template_workflow_layout.ts` 를
 * 트랜스파일해 가짜 DOM 위에서 ① 주소마다 줄 차례 ② [<] [>] = 이웃 단계 단추 누름(꺼진 단계 = 알림만)을
 * 돌려 JSON 한 벌로 냄. 확장자 `.cjs` 까닭은 `helper_design_view_parity.cjs` 머리와 같음.
 */
const path = require("path");
const { makeLoader } = require("./helper_ts_stub_loader.cjs");

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

class FakeNode {
  constructor(tag) {
    this.tagName = tag;
    this.children = [];
    this.parent = null;
    this.dataset = {};
    this.listeners = {};
    this.disabled = false;
    this.isConnected = true;
    this.title = "";
    this._text = "";
    this._classes = new Set();
    const self = this;
    this.classList = {
      add: (...n) => n.forEach((x) => self._classes.add(x)),
      remove: (...n) => n.forEach((x) => self._classes.delete(x)),
      toggle: (n, f) =>
        (f === undefined ? !self._classes.has(n) : !!f)
          ? self._classes.add(n)
          : self._classes.delete(n),
      contains: (n) => self._classes.has(n),
    };
  }
  set className(v) {
    this._classes = new Set(String(v).split(/\s+/).filter(Boolean));
  }
  get className() {
    return [...this._classes].join(" ");
  }
  set textContent(v) {
    this._text = String(v);
    this.children = [];
  }
  get textContent() {
    return this._text + this.children.map((c) => c.textContent).join("");
  }
  _adopt(kid) {
    if (kid.parent) kid.parent.children = kid.parent.children.filter((c) => c !== kid);
    kid.parent = this;
    return kid;
  }
  append(...kids) {
    kids.forEach((k) => this.children.push(this._adopt(k)));
  }
  prepend(...kids) {
    this.children.unshift(...kids.map((k) => this._adopt(k)));
  }
  setAttribute() {}
  addEventListener(type, handler) {
    (this.listeners[type] ||= []).push(handler);
  }
  dispatchEvent(event) {
    for (let node = this; node; node = event.bubbles ? node.parent : null)
      (node.listeners[event.type] || []).forEach((h) => h(event));
  }
  click() {
    if (!this.disabled) this.dispatchEvent({ type: "click", bubbles: true, target: this });
  }
  _matches(selector) {
    if (selector === "[data-help-row]") return "helpRow" in this.dataset;
    const [, cls, not] = /^\.([\w-]+)(?::not\(\.([\w-]+)\))?$/.exec(selector);
    return this._classes.has(cls) && !(not && this._classes.has(not));
  }
  querySelector(selector) {
    return this.querySelectorAll(selector)[0] ?? null;
  }
  querySelectorAll(selector) {
    const out = [];
    const walk = (n) => n.children.forEach((k) => (k._matches(selector) && out.push(k), walk(k)));
    walk(this);
    return out;
  }
}
class CustomEvent {
  constructor(type, init) {
    Object.assign(this, { type, bubbles: !!init?.bubbles, detail: init?.detail });
  }
}
globalThis.document = { createElement: (tag) => new FakeNode(tag) };
globalThis.location = { hash: "" };
// 주소 바뀜 듣개 — B05 ↔ B06 은 페이지를 다시 안 세우고 [<] [>] 켬 · 끔만 다시 맞춤(496-1)
const hashListeners = new Set();
globalThis.window = {
  addEventListener: (type, fn) => type === "hashchange" && hashListeners.add(fn),
  removeEventListener: (type, fn) => type === "hashchange" && hashListeners.delete(fn),
};
const goHash = (route) => {
  location.hash = `#/${route}`;
  [...hashListeners].forEach((fn) => fn());
};
globalThis.CustomEvent = CustomEvent;
globalThis.HTMLButtonElement = FakeNode;

// ── 바깥 모듈 대역 ─────────────────────────────────────────────────────────────
const ROUTES = {
  B01_ACCOUNT: "b01-account",
  B03_FILE_INPUT: "b03-file-input",
  B04_PREPROCESS: "b04-preprocess",
  B05_PROFILE: "b05-profile",
  B06_SECTION: "b06-section",
  B07_DESIGN_DETAIL: "b07-design-detail",
  B08_QUANTITY: "b08-quantity",
  B09_ESTIMATION: "b09-estimation",
};
const toasts = [];
let role = "SYSTEM_ADMIN";
let help;
const STUBS = {
  "@config/config_frontend": { ROUTES, API_BASE_URL: "" },
  "./ui_template_locale": { t: (key) => key },
  "./ui_template_modal": { openModal: () => undefined },
  "./ui_template_elements": {
    showToast: (message) => toasts.push(message),
    el: (tag) => new FakeNode(tag),
    createButton: ({ label, onClick }) => {
      const button = new FakeNode("button");
      button.className = "ui-btn";
      button.textContent = label;
      button.addEventListener("click", () => onClick && onClick());
      return button;
    },
  },
  // 진짜 겹판은 `splitSidebarActions` → `placeHelpButton` — 같은 차례로 흉내
  "./ui_template_overlay": {
    createWorkflowOverlays: ({ optionsContent, progressContent }) => {
      const root = new FakeNode("div");
      root.append(optionsContent, progressContent);
      const actions = optionsContent._classes.has("ui-sidebar-actions")
        ? optionsContent
        : optionsContent.querySelector(".ui-sidebar-actions");
      help.placeHelpButton(actions);
      return { root, setTitleOpen() {}, setProgressOpen() {} };
    },
  },
  "../A00_Common/router": { navigateTo: () => undefined },
  "../A00_Common/app_shell": { setDrawerSteps: () => undefined },
  "../B01_Dashboard/B01_Dashboard_Api_Fetch": { fetchDashboardMe: async () => ({ role }) },
};
globalThis.__DEV = false;

const { loadTs } = makeLoader({
  root: ROOT,
  cache: false,
  rewrite: (js) => js.replace(/import\.meta\.env\.DEV/g, "globalThis.__DEV"),
  requireFor: () => (request) => {
    if (request.endsWith(".css")) return {};
    if (STUBS[request]) return STUBS[request];
    throw new Error(`대역 없음: ${request}`);
  },
});
help = loadTs(path.join(ROOT, "ui_template", "ui_template_help.ts"));
const layout = loadTs(path.join(ROOT, "ui_template", "ui_template_workflow_layout.ts"));

// ① 주소마다 줄 차례 — [data-help-row] 있는 줄 · 없는 줄(B08 · B09 꼴)
const rowOf = (route, withHelpRow) => {
  location.hash = `#/${route}`;
  const actions = new FakeNode("div");
  actions.className = "ui-sidebar-actions";
  const row = new FakeNode("div");
  if (withHelpRow) {
    row.dataset.helpRow = "";
    actions.append(row);
  }
  const save = new FakeNode("button");
  save.className = "ui-btn";
  save.textContent = "저장";
  (withHelpRow ? row : actions).append(save);
  help.placeHelpButton(actions);
  help.placeHelpButton(actions); // 두 번 불러도 한 벌
  const kids = (withHelpRow ? row : actions).children;
  return { labels: kids.map((k) => k.textContent), disabled: kids.map((k) => k.disabled) };
};
const ALL = [
  "b03-file-input",
  "b04-preprocess",
  "b05-profile",
  "b06-section",
  "b07-design-detail",
  "b08-quantity",
  "b09-estimation",
  "b09-print",
  "m01-master-data",
  "m02-master-template",
];
const rows = {};
for (const route of ALL) rows[route] = { helpRow: rowOf(route, true), plain: rowOf(route, false) };

// ② [<] [>] = 이웃 단계 누름
const STEP_ROUTES = ALL.slice(0, 7);
function page(route, { stages, dev = false, module = layout, current } = {}) {
  globalThis.__DEV = dev;
  goHash(route);
  const calls = [];
  const handle = module.createWorkflowLayout({
    title: route,
    steps: STEP_ROUTES,
    activeStep: STEP_ROUTES.indexOf(route),
    mainContent: new FakeNode("div"),
    routes: STEP_ROUTES,
    stages,
    currentStage: current ?? STEP_ROUTES.indexOf(route),
    onStepClick: (index, to) => calls.push(`${index}:${to}`),
  });
  const navButton = (step) =>
    handle.root
      .querySelectorAll(".ui-step-nav-btn")
      .find((b) => b.dataset.stepNav === String(step));
  const press = (step) => {
    toasts.length = 0;
    navButton(step).click();
    return { calls: calls.splice(0), toasts: [...toasts] };
  };
  const stepButton = (index) =>
    handle.root.querySelectorAll(".ui-workflow-layout__step:not(.ui-workflow-layout__step--home)")[
      index
    ];
  return { handle, press, navButton, stepButton };
}

(async () => {
  const nav = {};
  const b05 = page("b05-profile");
  nav.b05Prev = b05.press(-1);
  nav.b05Next = b05.press(1);
  nav.prevDisabled = { b05: b05.navButton(-1).disabled };
  // B05 → B06 = 같은 페이지 — 켜진 칸만 갈아 끼움(design_page 의 setActiveStep) · [<] 는 주소 따라 켬
  goHash("b06-section");
  b05.handle.setActiveStep(3);
  nav.prevDisabled.b06 = b05.navButton(-1).disabled;
  nav.b06Prev = b05.press(-1);
  nav.b06Next = b05.press(1);
  goHash("b05-profile");
  b05.handle.setActiveStep(2);
  nav.prevDisabled.back = b05.navButton(-1).disabled;
  const b09 = page("b09-estimation");
  nav.b09Prev = b09.press(-1);
  nav.b09Next = b09.press(1);
  // 운영 — 막힌 단계(NOT_STARTED) = 누르지 않고 그 단추 title 알림
  const stages = STEP_ROUTES.map((_, i) => ({
    stage_no: i,
    stage_key: String(i),
    state: i >= 4 ? "NOT_STARTED" : "COMPLETE",
  }));
  const blocked = page("b06-section", { stages });
  nav.blockedNext = blocked.press(1);
  // [저장] 뒤 서버 단계로 다시 칠함 — 시작함(IN_PROGRESS)이면 켬
  blocked.handle.setStages(
    stages.map((s) => ({ ...s, state: s.stage_no === 4 ? "IN_PROGRESS" : s.state })),
  );
  nav.repaintNext = blocked.press(1);
  nav.repaintClass = blocked.stepButton(4).className;
  // STALE = 색만 · 막지 않음(요구 300 B1)
  const stale = page("b06-section", {
    stages: stages.map((s) => ({ ...s, state: s.stage_no >= 4 ? "STALE" : s.state })),
  });
  nav.staleNext = stale.press(1);
  nav.staleClass = stale.stepButton(4).className;
  // B05 · B06 화면 = 2 · 3 · 4 늘 켬(운영 · 체인 직후 NOT_STARTED 라도) · B08 은 막힘
  const chain = page("b06-section", { stages, current: [2, 3, 4] });
  nav.listNext = chain.press(1);
  nav.listB08 = chain.stepButton(5).disabled;
  // 일반 사용자 — B05 [<](B04) = 관리자 전용 알림(역할은 모듈이 한 번 물어 기억 → 새로 읽음)
  role = "USER";
  const fresh = loadTs(path.join(ROOT, "ui_template", "ui_template_workflow_layout.ts"));
  const user = page("b06-section", { dev: true, module: fresh });
  await new Promise((r) => setTimeout(r, 0));
  // B06 [<] = B05(같은 페이지) · B04 단계 단추 = 관리자 전용 잠금(다시 칠해도 남음)
  nav.userPrev = user.press(-1);
  const lockOf = (b) => ({ disabled: b.disabled, title: b.title });
  nav.userB04 = lockOf(user.stepButton(1));
  user.handle.setStages(stages);
  nav.userB04Repaint = lockOf(user.stepButton(1));
  process.stdout.write(JSON.stringify({ rows, nav }));
})();