/* 298-2 B08 · B09 좌측 아래 단추 줄 — 진짜 `B08_Quantity_UI_Options.ts` · `B08_Quantity_UI_Page.ts` ·
 * `B09_Estimation_UI_Shell.ts` 를 트랜스파일해 가짜 DOM · 가짜 의존 위에서 돌리고 값을 JSON 으로 냄.
 * [초기화] = 확인 창 → POST reset · [>] = 저장 → POST complete → 다음 길 · 실패면 머묾. */
const fs = require("fs");
const path = require("path");
const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
const ROOT = path.join(__dirname, "..", "..");

// 무엇이든 받아 주는 빈 값 — 부르면 또 빈 값 · 펼치면 비어 있음 · 글자로는 ""
function any() {
  const store = {};
  return new Proxy(function () {}, {
    get(_t, k) {
      if (k in store) return store[k];
      if (k === "then") return undefined;
      if (k === Symbol.iterator) return function* () {};
      if (k === Symbol.toPrimitive) return () => "";
      return (store[k] = any());
    },
    set(_t, k, v) {
      store[k] = v;
      return true;
    },
    apply: () => any(),
    construct: () => any(),
  });
}

class Node {
  constructor(tag = "div") {
    this.tagName = tag.toUpperCase();
    this.children = [];
    this.parent = null;
    this.dataset = {};
    this.style = {};
    this.listeners = {};
    this.classList = { add() {}, toggle() {}, remove() {}, contains: () => false };
  }
  get isConnected() {
    let n = this;
    while (n.parent) n = n.parent;
    return n.isRoot === true;
  }
  append(...kids) {
    kids.forEach((k) => {
      if (k instanceof Node) k.parent = this;
      this.children.push(k);
    });
  }
  replaceChildren(...kids) {
    this.children.forEach((k) => k instanceof Node && (k.parent = null));
    this.children = [];
    this.append(...kids);
  }
  setAttribute() {}
  querySelector() {
    return null;
  }
  querySelectorAll() {
    return [];
  }
  addEventListener(name, fn) {
    (this.listeners[name] ??= []).push(fn);
  }
}
global.document = { createElement: (tag) => new Node(tag) };

function load(rel, stubs) {
  const src = fs
    .readFileSync(path.join(ROOT, rel), "utf8")
    .replace(/import\.meta\.glob\(/g, "(() => ({}))(");
  const js = ts.transpileModule(src, {
    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
  }).outputText;
  const mod = { exports: {} };
  const req = (id) => (id in stubs ? stubs[id] : id.endsWith(".css") ? {} : any());
  new Function("exports", "module", "require", js)(mod.exports, mod, req);
  return mod.exports;
}
const flush = async () => {
  for (let k = 0; k < 8; k++) await new Promise((r) => setTimeout(r, 0));
};

const calls = [];
const buttons = []; // 만든 단추 — { variant, node }
let layoutOpts = null;
let confirmAnswer = false;
const store = new Map(); // 가짜 세션 캐시
const common = {
  "@ui/ui_template_workflow_layout": {
    createWorkflowLayout: (opts) => {
      layoutOpts = opts;
      const root = new Node();
      root.append(opts.leftPanel, opts.mainContent);
      return { root };
    },
  },
  "@ui/ui_template_elements": {
    createButton: (o) => {
      const node = Object.assign(new Node("button"), { onClick: o.onClick, variant: o.variant });
      buttons.push(node);
      return node;
    },
    createInputField: () => ({ input: new Node("input"), root: new Node() }),
    showToast: (_text, kind) => calls.push(`toast:${kind}`),
    showLoadingOverlay: () => calls.push("lock"),
    hideLoadingOverlay: () => calls.push("unlock"),
    showConfirmDialog: async () => (calls.push("confirm"), confirmAnswer),
  },
  "@ui/ui_template_collapsible": { attachCollapsible() {}, createPanelCard: () => new Node() },
  "@ui/ui_template_locale": { ui_locales: any(), currentLanguageIndex: 0 },
  "@config/config_frontend": { CURRENT_PROJECT_ID_KEY: "pid", API_BASE_URL: "/api" },
  "../A00_Common/b_page_scaffold": { workflowSteps: () => [] },
  "../A00_Common/b_workflow_nav": {
    WORKFLOW_STEP_ROUTES: ["b03", "b04", "b05", "b06", "b07", "b08", "b09"],
    // 520-3 공용 페이지 넘김 — 단계 차례 · false · 던짐 = 머묾(잠금 · 진행 글은 test_520_3)
    moveStage: async (_p, target, steps) => {
      for (const step of steps)
        try {
          if ((await step.run()) === false) return false;
        } catch {
          calls.push("toast:error");
          return false;
        }
      if (typeof target === "function") target();
      else calls.push(`go:${target}`);
      return true;
    },
  },
  "../A00_Common/b_page_state": {
    readState: (name) => store.get(name) ?? null,
    writeState: (name, v) => store.set(name, v),
    clearState: (name) => store.delete(name),
  },
};
global.localStorage = { getItem: () => "P1" };
const take = () => calls.splice(0).filter((c) => !c.startsWith("toast:success"));

// B08 좌측 옵션 [저장] [초기화]
async function b08Options() {
  let fail = false;
  const m = load("B08_Quantity/B08_Quantity_UI_Options.ts", {
    ...common,
    "./B08_Quantity_UI_Hydro": {
      request: async (url, init) => {
        const method = init?.method ?? "GET";
        if (method !== "GET") calls.push(`req:${method}:${url}`);
        if (fail && method === "POST") throw new Error("500");
        return { one_pipe_length_m: 6, rock_ratios_pct: { 연암: 90 }, material_surcharge_pct: {} };
      },
    },
    "./B08_Quantity_UI_Milestone_State": {
      saveMilestone: async () => calls.push("req:milestone"),
      loadMilestone: async (_p, force) => calls.push(`milestone:${force}`),
    },
  });
  buttons.length = 0;
  const panel = m.createOptionsPanel("P1", () => calls.push("redraw"));
  await flush();
  const actions = panel.panel.children.find((c) => c.className === "ui-sidebar-actions");
  const out = { order: actions.children.map((b) => b.variant) };
  const reset = actions.children[1];
  const drafts = ["b08-options", "b08-materials", "b08-hydro", "b08-milestone"];
  const fill = () => drafts.forEach((d) => store.set(d, { x: 1 }));
  const press = async () => {
    take();
    reset.onClick();
    await flush();
    return take();
  };
  fill();
  confirmAnswer = false;
  out.cancel = [await press(), drafts.filter((d) => store.has(d))];
  confirmAnswer = true;
  out.ok = [await press(), drafts.filter((d) => store.has(d))];
  fill();
  fail = true;
  out.fail = [await press(), drafts.filter((d) => store.has(d))];
  store.clear();
  return out;
}

// B08 진행 단계 · [>] — B09 쪽 = 저장 → POST complete → 이동
async function b08Page() {
  let completeFail = false;
  const m = load("B08_Quantity/B08_Quantity_UI_Page.ts", {
    ...common,
    "./B08_Quantity_UI_Options": {
      createOptionsPanel: () => ({ panel: new Node(), save: async () => true }),
    },
    "./B08_Quantity_UI_Hydro": {
      renderHydro() {},
      request: async (url, init) => {
        calls.push(`req:${init?.method}:${url}`);
        if (completeFail) throw new Error("500");
      },
    },
  });
  m.renderB08Quantity(Object.assign(new Node(), { isRoot: true }));
  const step = async (i) => {
    take();
    layoutOpts.onStepClick(i);
    await flush();
    return take();
  };
  const out = { next: await step(6), back: await step(4) };
  completeFail = true;
  out.fail = await step(6);
  return out;
}

// B09 [초기화] · [>](공용 틀 대신 셸) — draft = DRAFT.next 있음 / 없음
async function b09(withNext) {
  let failOn = null; // "PUT" | "complete"
  global.fetch = async (url, init) => {
    const method = init?.method ?? "GET";
    if (method !== "GET") calls.push(`fetch:${method}:${url}`);
    const bad = failOn === method || (failOn === "complete" && url.endsWith("/complete"));
    if (bad) return { ok: false, status: 500, json: async () => ({}) };
    return { ok: true, status: 200, json: async () => any() };
  };
  const tabs = any();
  tabs.DRAFT = { builders: {}, extend: [], panels: [], actions: [] };
  if (withNext) tabs.DRAFT.next = () => calls.push("next");
  const nextBtn = Object.assign(new Node("button"), { disabled: true });
  const m = load("B09_Estimation/B09_Estimation_UI_Shell.ts", {
    ...common,
    "./B09_Estimation_UI_Tabs": tabs,
    "./B09_Estimation_UI_Dock": {
      linkMode: () => "popup",
      createDock: (list) => {
        const dock = new Node();
        dock.append(...list);
        return dock;
      },
    },
    "@ui/ui_template_workflow_layout": {
      createWorkflowLayout: (opts) => {
        layoutOpts = opts;
        // 공용 [?] [<] [>] 자리 흉내 — B09 [>] = 흐림
        opts.leftPanel.querySelector = (sel) => (sel === '[data-step-nav="1"]' ? nextBtn : null);
        const root = new Node();
        root.append(opts.leftPanel, opts.mainContent);
        return { root };
      },
    },
  });
  buttons.length = 0;
  m.renderB09Estimation(Object.assign(new Node(), { isRoot: true }));
  await flush(); // GET 응답 반영
  const left = layoutOpts.leftPanel;
  const dock = left.children[left.children.length - 1];
  const out = { dock: dock.children.map((b) => b.variant), nextEnabled: !nextBtn.disabled };
  const nav = async (detail) => {
    take();
    let stopped = false;
    const event = { detail, stopPropagation: () => (stopped = true) };
    (left.listeners["ui-step-nav"] ?? []).forEach((fn) => fn(event));
    await flush();
    return [stopped, take()];
  };
  if (!withNext) {
    out.nav = await nav(1);
    return out;
  }
  out.clean = await nav(1);
  store.set("b09-estimation", { x: 1 });
  out.changed = await nav(1);
  out.cleared = !store.has("b09-estimation");
  store.set("b09-estimation", { x: 1 });
  failOn = "PUT";
  out.saveFail = await nav(1);
  failOn = "complete";
  store.delete("b09-estimation");
  out.completeFail = await nav(1);
  failOn = null;
  out.prev = await nav(-1);
  // [초기화]
  const reset = dock.children[0];
  const press = async () => {
    take();
    reset.onClick();
    await flush();
    return take();
  };
  store.set("b09-estimation", { x: 1 });
  confirmAnswer = false;
  out.resetCancel = [await press(), store.has("b09-estimation")];
  confirmAnswer = true;
  out.resetOk = [await press(), store.has("b09-estimation")];
  store.clear();
  return out;
}

(async () => {
  const r = {
    options: await b08Options(),
    page: await b08Page(),
    b09: await b09(true),
    b09NoDraft: await b09(false),
  };
  console.log(JSON.stringify(r));
})().catch((e) => {
  console.error(e && e.stack ? e.stack : e);
  process.exit(1);
});