/* 探测新增图标源可达性 */
const https = require('https');
function fetch(url) {
  return new Promise((resolve, reject) => {
    const req = https.get(url, { timeout: 15000 }, (res) => {
      if (res.statusCode >= 300 && res.statusCode < 400 && res.headers.location) {
        res.resume();
        return resolve(fetch(res.headers.location.startsWith('/') ? 'https://unpkg.com' + res.headers.location : res.headers.location));
      }
      if (res.statusCode !== 200) { res.resume(); return reject(new Error(res.statusCode + ' ' + url)); }
      const chunks = [];
      res.on('data', c => chunks.push(c));
      res.on('end', () => resolve(Buffer.concat(chunks).toString('utf8')));
    });
    req.on('error', reject);
    req.on('timeout', () => req.destroy(new Error('timeout')));
  });
}
(async () => {
  const urls = {
    bootstrap: 'https://unpkg.com/bootstrap-icons@1.11.3/bootstrap-icons.svg',
    fa_solid: 'https://unpkg.com/@fortawesome/fontawesome-free@6.5.2/sprites/solid.svg',
    fa_regular: 'https://unpkg.com/@fortawesome/fontawesome-free@6.5.2/sprites/regular.svg',
    fa_brands: 'https://unpkg.com/@fortawesome/fontawesome-free@6.5.2/sprites/brands.svg'
  };
  for (const [k, u] of Object.entries(urls)) {
    try {
      const s = await fetch(u);
      const syms = (s.match(/<symbol/g) || []).length;
      console.log(`${k}: OK  ${(s.length / 1024).toFixed(0)}KB  symbols=${syms}`);
    } catch (e) {
      console.log(`${k}: FAIL ${e.message}`);
    }
  }
})();