/**
 * Task 9 修复轮 1 的执行级验证台。
 *
 * 本仓没有前端测试框架（`node_modules/.bin` 里没有 vitest/jest/mocha），所以这里拿
 * `@vue/compiler-sfc` 把页面真正的 `<script setup>` 编译出来、用真的 `vue` 跑起来，
 * 再驱动**真函数**（`handleMcc1Change` / `reloadCascades` / `uploadOnboardingFile` / `handleSubmit`），
 * 断言落在**真状态**（`form.merchant_mcc_code` 等）上。
 *
 * ★ 量具与被测量物：`vue` 是 `frontend/node_modules` 里那一份（真品）；
 *   `@/api/...` 与上传组件是桩（这一步没有后端可打）；模板不渲染（`inlineTemplate: false`）。
 *   ⇒ 本台证明的是「这些函数的判定逻辑」，不是「浏览器里长什么样」。
 *
 * 用法：node t9fix-harness.mjs <index.vue 路径> [标签]
 */
import fs from "node:fs";
import { createRequire } from "node:module";

const FE = "D:/project2/payment-platform/frontend/";
const require = createRequire(FE + "package.json");
const vue = require("vue");
const { parse, compileScript } = require("@vue/compiler-sfc");

const SRC = process.argv[2];
const LABEL = process.argv[3] || SRC;

/** 把 SFC 编译成可 `new Function` 的普通脚本（import 换成对 `globalThis.__T9` 的取值）。 */
function compileSfc(file) {
  const src = fs.readFileSync(file, "utf8");
  const { descriptor, errors } = parse(src, { filename: file });
  if (errors && errors.length) throw new Error("SFC 解析失败: " + errors.map(String).join("; "));
  let code = compileScript(descriptor, { id: "t9probe", inlineTemplate: false }).content;

  // `type X` 说明符在 JS 里非法，去掉（它们本来就只是类型）；`as` 别名要变成解构的 `:`
  const stripTypes = (names) => names.replace(/\btype\s+[\w$.]+\s*,?/g, "");
  const deAlias = (names) => names.replace(/\bas\b/g, ":");
  const braceImport = (spec) =>
    new RegExp(`import\\s*\\{([^}]*)\\}\\s*from\\s*['"]${spec}['"];?`, "g");
  code = code
    // ★ 会有**两条** vue import：一条是 `defineComponent`（`defineOptions` 带来的包装），
    //   一条是本文件自己 import 的响应式 API ⇒ 必须带 `g`，且别名要转换。
    .replace(braceImport("vue"), (_m, n) => `const {${deAlias(n)}} = globalThis.__T9.vue;`)
    .replace(
      braceImport("@/api/module_payment/onboarding"),
      (_m, n) => `const {${stripTypes(n)}} = globalThis.__T9.api;`
    )
    .replace(
      /import\s+(\w+)\s+from\s*['"]@\/components\/Upload\/SingleImageUpload\.vue['"];?/,
      (_m, n) => `const ${n} = globalThis.__T9.SingleImageUpload;`
    );

  if (/^\s*import\s/m.test(code)) throw new Error("还有没换掉的 import：\n" + code.slice(0, 400));

  // ★ `compileScript` **不**剥 TS（它把 TS 留给下游的 esbuild）⇒ 这里自己过一遍 `tsc` 的
  //   单文件转译，否则 `interface Field {` 会以 SyntaxError 炸掉。顺序必须在 import 换完之后。
  const ts = require("typescript");
  code = ts.transpileModule(code, {
    compilerOptions: { target: ts.ScriptTarget.ES2022, module: ts.ModuleKind.ESNext },
    fileName: "index.ts",
  }).outputText;
  code = code.replace(/export\s+default/, "const __sfc =");
  if (/^\s*export\s/m.test(code)) throw new Error("还有没换掉的 export");
  code += "\nglobalThis.__T9.sfc = __sfc;";
  return code;
}

const code = compileSfc(SRC);

// ---------- 桩 ----------
const ok = (d) => ({ data: { code: 0, data: d } });
const M1 = { mcc_code: "M1", mcc_name: "一级A" };
const M2 = { mcc_code: "M2", mcc_name: "二级B" };

function makeApi(state) {
  return {
    MERCHANT_CATEGORY_OPTIONS: [],
    getOnboardingAreas: async () => ok([]),
    getOnboardingMcc: async (p) => {
      const h = state.mcc[p.level];
      if (!h) throw new Error("场景没给 level=" + p.level + " 的桩");
      return h(p);
    },
    uploadOnboardingImage: async () => state.upload(),
    createOnboardingMerchant: async (body) => state.create(body),
  };
}

/** 每个场景一套全新的 refs：重新求值一次编译产物即可。 */
function mount(state) {
  globalThis.__T9 = { vue, api: makeApi(state), SingleImageUpload: { name: "Stub" } };
  new Function(code)();
  const bindings = globalThis.__T9.sfc.setup({}, { expose: () => {} });
  return bindings;
}

// ---------- 断言 ----------
let nPass = 0;
const failed = [];
function check(name, actual, expected) {
  const pass = JSON.stringify(actual) === JSON.stringify(expected);
  if (pass) nPass++;
  else failed.push(name);
  console.log(`  ${pass ? "PASS" : "FAIL"}  ${name}  (actual=${JSON.stringify(actual)} want=${JSON.stringify(expected)})`);
}
const throws = async (fn) => {
  try {
    await fn();
    return false;
  } catch {
    return true;
  }
};

console.log(`=== ${LABEL} ===`);

// ---- A. 「/mcc 二级请求失败」不得被判成「一级就是末级」（F1 主症） ----
{
  const state = { mcc: { "2": async () => { throw new Error("网络挂了"); } }, upload: async () => ok(""), create: async () => ok(null) };
  const b = mount(state);
  b.mcc1.value = "M1";
  b.mccOptions1.value = [M1];
  await b.handleMcc1Change();
  check("A1 /mcc 二级失败 ⇒ merchant_mcc_code 保持空", b.form.merchant_mcc_code, "");
  check("A2 /mcc 二级失败 ⇒ leafLabel 保持空（不显示假的已选）", b.leafLabel.value, "");
  check("A3 /mcc 二级失败 ⇒ mccOptions2 保持空", b.mccOptions2.value, []);
  check("A4 /mcc 二级失败 ⇒ cascadeFailed 置位（常驻提示）", b.cascadeFailed.value, true);
  check("A5 /mcc 二级失败 ⇒ 加载态已复位", b.mccLoading.value, false);
}

// ---- B. 正对照：上游**真的**回 0 条 ⇒ 一级就是末级（这条逻辑必须还在） ----
{
  const state = { mcc: { "2": async () => ok([]) }, upload: async () => ok(""), create: async () => ok(null) };
  const b = mount(state);
  b.mcc1.value = "M1";
  b.mccOptions1.value = [M1];
  await b.handleMcc1Change();
  check("B1 二级真的回 0 条 ⇒ 一级即末级，写入 M1", b.form.merchant_mcc_code, "M1");
  check("B2 二级真的回 0 条 ⇒ leafLabel = 一级名", b.leafLabel.value, "一级A");
}

// ---- C. 三级树：三级有值 ⇒ 末级是三级 ----
{
  const state = {
    mcc: { "2": async () => ok([M2]), "3": async () => ok([{ mcc_code: "M3", mcc_name: "三级C" }]) },
    upload: async () => ok(""),
    create: async () => ok(null),
  };
  const b = mount(state);
  b.mcc1.value = "M1";
  b.mccOptions1.value = [M1];
  await b.handleMcc1Change();
  check("C1 二级有值 ⇒ 此时还不该写末级", b.form.merchant_mcc_code, "");
  b.mcc2.value = "M2";
  b.mccOptions2.value = [M2];
  await b.handleMcc2Change();
  b.mcc3.value = "M3";
  b.mccOptions3.value = [{ mcc_code: "M3", mcc_name: "三级C" }];
  b.handleMcc3Change();
  check("C2 选到三级 ⇒ 末级 = M3", b.form.merchant_mcc_code, "M3");
  check("C3 选到三级 ⇒ leafLabel = 三级名", b.leafLabel.value, "三级C");
}

// ---- D. 两级树：三级回 0 条 ⇒ 末级是二级 ----
{
  const state = {
    mcc: { "2": async () => ok([M2]), "3": async () => ok([]) },
    upload: async () => ok(""),
    create: async () => ok(null),
  };
  const b = mount(state);
  b.mcc1.value = "M1";
  b.mccOptions1.value = [M1];
  await b.handleMcc1Change();
  b.mcc2.value = "M2";
  b.mccOptions2.value = [M2];
  await b.handleMcc2Change();
  check("D1 三级回 0 条 ⇒ 末级 = M2（二级）", b.form.merchant_mcc_code, "M2");
}

// ---- E. 重新加载：①失败后不得留旧值 ②成功要重判末级 ----
{
  const state = {
    mcc: { "1": async () => ok([M1]), "2": async () => { throw new Error("还是挂着"); } },
    upload: async () => ok(""),
    create: async () => ok(null),
  };
  const b = mount(state);
  b.mcc1.value = "M1";
  b.mccOptions1.value = [M1];
  await b.handleMcc1Change(); // 失败
  b.form.merchant_mcc_code = "M1"; // ← 模拟「改前那版已经写进去的错值」
  await b.reloadCascades(); // 重新加载**再失败**
  check("E1 重新加载再失败 ⇒ 旧末级必须被清掉", b.form.merchant_mcc_code, "");
  check("E2 重新加载再失败 ⇒ leafLabel 也要清", b.leafLabel.value, "");
  check("E3 重新加载再失败 ⇒ 红色常驻提示仍在", b.cascadeFailed.value, true);
}
{
  const state = {
    mcc: { "1": async () => ok([M1]), "2": async () => { throw new Error("先挂着"); } },
    upload: async () => ok(""),
    create: async () => ok(null),
  };
  const b = mount(state);
  b.mcc1.value = "M1";
  b.mccOptions1.value = [M1];
  await b.handleMcc1Change();
  state.mcc["2"] = async () => ok([]); // 这次通了，且是浅树
  await b.reloadCascades();
  check("E4 重新加载成功 ⇒ 重驱动后重新判出末级 M1", b.form.merchant_mcc_code, "M1");
  check("E5 重新加载成功 ⇒ 提示消失", b.cascadeFailed.value, false);
  check("E6 重新加载成功 ⇒ 一级选项已重取", b.mccOptions1.value.length, 1);
}

// ---- F. 上传：空地址必须走错误通道（F2 上半） ----
{
  const state = { mcc: {}, upload: async () => ok(""), create: async () => ok(null) };
  const b = mount(state);
  check("F1 空地址 ⇒ 抛异常（组件 onError 那条路）", await throws(() => b.uploadOnboardingFile({})), true);
}
{
  const state = { mcc: {}, upload: async () => ok("https://img/x.png"), create: async () => ok(null) };
  const b = mount(state);
  let got = null;
  try {
    got = await b.uploadOnboardingFile({});
  } catch (e) {
    got = "THREW:" + e.message;
  }
  check("F2 正对照：正常地址 ⇒ 原样返回字符串", got, "https://img/x.png");
}
{
  const state = { mcc: {}, upload: async () => ok(null), create: async () => ok(null) };
  const b = mount(state);
  check("F3 data 为 null ⇒ 也抛（同样是拿不到地址）", await throws(() => b.uploadOnboardingFile({})), true);
}

// ---- G. 提交：没回商户号不能静默（F2 下半） ----
{
  const state = { mcc: {}, upload: async () => ok(""), create: async () => ok({ mch_no: null }) };
  const b = mount(state);
  await b.handleSubmit();
  check("G1 mch_no 为 null ⇒ 常驻提示置位", b.submitNoMchNo?.value, true);
  check("G2 mch_no 为 null ⇒ 不显示商户号", b.createdMchNo.value, "");
  check("G3 mch_no 为 null ⇒ 提交态已复位", b.submitting.value, false);
}
{
  const state = { mcc: {}, upload: async () => ok(""), create: async () => ok({ mch_no: "M20260923" }) };
  const b = mount(state);
  await b.handleSubmit();
  check("G4 正对照：正常商户号 ⇒ 显示出来", b.createdMchNo.value, "M20260923");
  check("G5 正对照：正常商户号 ⇒ 不置警示", b.submitNoMchNo?.value, false);
}

console.log(`SUMMARY ${LABEL}: pass=${nPass} fail=${failed.length}${failed.length ? " -> " + failed.join(" | ") : ""}`);