const fs = require('fs');
const path = require('path');

(async () => {
  const { escapeSmartHtml, decodeEntities } = await import('../web/src/htmlUtil.mjs');

  const file = path.join(__dirname, '..', 'questions.json');
  const data = JSON.parse(fs.readFileSync(file, 'utf8'));
  let fixed = 0;

  for (const set of data.sets) {
    for (const q of set.questions) {
      const nq = escapeSmartHtml(decodeEntities(q.q));
      const nx = escapeSmartHtml(decodeEntities(q.exp || ''));
      if (nq !== q.q) { q.q = nq; fixed++; }
      if (nx !== q.exp) { q.exp = nx; fixed++; }
      const no = q.opts.map(o => escapeSmartHtml(decodeEntities(o)));
      if (JSON.stringify(no) !== JSON.stringify(q.opts)) { q.opts = no; fixed++; }
    }
  }

  fs.writeFileSync(file, JSON.stringify(data, null, 2), 'utf8');
  console.log('清洗完成，修正字段数:', fixed);
  console.log('幂等检查（再跑一遍应无变化）...');
  let again = 0;
  for (const set of data.sets) {
    for (const q of set.questions) {
      if (escapeSmartHtml(decodeEntities(q.q)) !== q.q) again++;
      if (escapeSmartHtml(decodeEntities(q.exp || '')) !== q.exp) again++;
      if (JSON.stringify(q.opts.map(o => escapeSmartHtml(decodeEntities(o)))) !== JSON.stringify(q.opts)) again++;
    }
  }
  console.log(again === 0 ? '幂等 ✓' : `仍会变化: ${again} 处 ✗`);
})();