/**
 * 校验 custom-brand 源：缺失文件对比 + 超大 SVG 抽查
 */
'use strict';
const vm = require('vm');
const fs = require('fs');
const https = require('https');

const src = fs.readFileSync('js/data/sources/custom-brand.js', 'utf8');
const sandbox = { window: {} };
vm.createContext(sandbox);
vm.runInContext(src, sandbox);
const icons = vm.runInContext("window['HGB_Source_custom-brand'].icons", sandbox);
const local = new Set(icons.map(i => i.name));

function fetchRaw(url) {
  return new Promise((res, rej) => {
    https.get(url, { timeout: 25000 }, r => {
      if (r.statusCode >= 300 && r.statusCode < 400 && r.headers.location) { r.resume(); return res(fetchRaw(r.headers.location)); }
      if (r.statusCode !== 200) { rej(new Error('HTTP ' + r.statusCode)); r.resume(); return; }
      const c = [];
      r.on('data', x => c.push(x));
      r.on('end', () => res(Buffer.concat(c).toString('utf8')));
    }).on('error', rej);
  });
}

(async () => {
  const raw = await fetchRaw('https://data.jsdelivr.com/v1/packages/gh/elax46/custom-brand-icons@main');
  const j = JSON.parse(raw);
  const all = [];
  const walk = (files) => { for (const f of files || []) { if (f.type === 'file') all.push(f.name.replace(/\.svg$/i, '')); else walk(f.files || []); } };
  walk(j.files.find(f => f.name === 'icon-svg').files || []);
  const missing = all.filter(n => !local.has(n));
  console.log('缺失文件(' + missing.length + '):', missing.join(', ') || '(无)');
  const big = [...icons].sort((a, b) => b.svg.length - a.svg.length).slice(0, 1)[0];
  console.log('最大图标', big.name, '| 长度', big.svg.length, '| path 数', (big.svg.match(/<path/g) || []).length, '| g 数', (big.svg.match(/<g/g) || []).length);
  // 含非 ASCII id
  const nonAscii = icons.filter(i => /[^\x20-\x7e]/.test(i.name));
  console.log('非 ASCII 文件名数:', nonAscii.length, nonAscii.slice(0, 5).map(i => i.name).join(', '));
  // 含 defs/渐变 的个数（wrap 类保留原色的检查）
  const defs = icons.filter(i => /<(defs|linearGradient|radialGradient|pattern)/.test(i.svg));
  console.log('含 defs/渐变 图标数:', defs.length);
  // fill 颜色分布
  const fills = {};
  for (const i of icons) {
    const m = i.svg.match(/fill="#[0-9a-fA-F]{3,6}"/);
    const k = m ? m[0] : 'currentColor/无';
    fills[k] = (fills[k] || 0) + 1;
  }
  console.log('fill 分布:', JSON.stringify(fills).slice(0, 300));
})().catch(e => { console.error('❌', e.message); process.exit(1); });