const fs = require('fs');

// Read char_common_base.json (each line is a JSON object)
const basePath = '/Users/joey-xd/sites/pipi-learn/platform-pipi/apps/api/src/data/char_common_base.json';
const baseText = fs.readFileSync(basePath, 'utf8').trim();
const baseLines = baseText.split('\n').filter(l => l.trim());
const chars = baseLines.map(l => {
  let cleaned = l.trim().replace(/,$/, '');
  return JSON.parse(cleaned);
});

console.log(`总字数: ${chars.length}`);

const singlePinyin = chars.filter(c => c.pinyin.length === 1);
const multiPinyin = chars.filter(c => c.pinyin.length > 1);

console.log(`单音字: ${singlePinyin.length}`);
console.log(`多音字: ${multiPinyin.length}`);

// Count by number of pinyins
const byCount = {};
multiPinyin.forEach(c => {
  const n = c.pinyin.length;
  if (!byCount[n]) byCount[n] = [];
  byCount[n].push(c);
});

Object.keys(byCount).sort().forEach(n => {
  console.log(`\n=== ${n} 个读音 (${byCount[n].length} 字) ===`);
  byCount[n].forEach(c => {
    console.log(`  ${c.char}: [${c.pinyin.join(', ')}]`);
  });
});