// 静态检查：语法 + 类型 + 构建 + 关键标记 tripwire（CI 与 pre-push 共用）
import { spawnSync } from 'node:child_process';
import fs from 'node:fs';
import path from 'node:path';
import url from 'node:url';

const root = path.resolve(path.dirname(url.fileURLToPath(import.meta.url)), '..');
let failures = 0;
const step = (label, fn) => {
  process.stdout.write('==> ' + label + ' ... ');
  try { fn(); console.log('OK'); }
  catch (e) { console.log('FAIL\n' + String(e.message || e).slice(-2000)); failures++; }
};

// 1) 所有服务端 .mjs 语法检查（新增文件自动纳入）
const mjsDirs = ['sync-server/src', 'app/server', 'scripts'];
const mjsFiles = mjsDirs.flatMap((d) =>
  fs.readdirSync(path.join(root, d)).filter((f) => f.endsWith('.mjs')).map((f) => path.join(d, f)));
step('node --check × ' + mjsFiles.length + ' 个文件', () => {
  for (const f of mjsFiles) {
    const r = spawnSync(process.execPath, ['--check', path.join(root, f)], { encoding: 'utf8' });
    if (r.status !== 0) throw new Error(f + '\n' + r.stderr);
  }
});

// 2) TypeScript 类型检查
const tsc = path.join(root, 'app/node_modules/typescript/bin/tsc');
if (fs.existsSync(tsc)) {
  step('tsc --noEmit（前端类型）', () => {
    const r = spawnSync(process.execPath, [tsc, '--noEmit'], { cwd: path.join(root, 'app'), encoding: 'utf8' });
    if (r.status !== 0) throw new Error(r.stdout || r.stderr);
  });
} else console.log('==> tsc 跳过（app/node_modules 不存在，先安装依赖）');

// 3) 前端构建（确保源码可构建；产物不提交）
const vite = path.join(root, 'app/node_modules/vite/bin/vite.js');
if (fs.existsSync(vite)) {
  step('vite build', () => {
    const r = spawnSync(process.execPath, [vite, 'build'], { cwd: path.join(root, 'app'), encoding: 'utf8' });
    if (r.status !== 0) throw new Error(r.stdout || r.stderr);
  });
} else console.log('==> vite 跳过（app/node_modules 不存在）');

// 4) 关键文件 tripwire：防止「改了没提交」类事故再次发生
step('关键标记 tripwire', () => {
  const musts = [
    ['app/server/db.mjs', "case 'demo_seed'"],
    ['app/server/db.mjs', 'DEMO_ROWS'],
    ['app/public/sw.js', 'fp-static-v3'],
    ['sync-server/src/db.mjs', "name='remark'"],
    ['sync-server/src/index.mjs', 'demo_seed'],
  ];
  for (const [f, needle] of musts) {
    const p = path.join(root, f);
    if (!fs.existsSync(p) || !fs.readFileSync(p, 'utf8').includes(needle)) {
      throw new Error(f + ' 缺少关键标记: ' + needle);
    }
  }
});

if (failures) { console.error('\n✗ check 失败：' + failures + ' 项'); process.exit(1); }
console.log('\n✓ check 全部通过');