import { readFileSync, readdirSync, statSync } from 'fs';
import { join } from 'path';

const targets = [
  'src/main/java/com/fs/company/service/easycall/WxAddWxFrequencySupport.java',
  'src/main/java/com/fs/company/service/easycall/WxAddWxFrequencyRedisHelper.java',
  'src/main/java/com/fs/company/service/impl/call/node/AiAddWxTaskNewNode.java',
];

const issues = [];
for (const rel of targets) {
  const bytes = readFileSync(rel);
  if (bytes.length >= 3 && bytes[0] === 0xef && bytes[1] === 0xbb && bytes[2] === 0xbf) {
    issues.push(`${rel}: UTF-8 BOM`);
  }
  const text = bytes.toString('utf8');
  if (text.includes('\uFFFD')) issues.push(`${rel}: U+FFFD`);
  if (/\u00C3[\u0080-\u00BF]{1,2}/.test(text) && !/[\u4e00-\u9fff]/.test(text)) {
    issues.push(`${rel}: possible GBK misread`);
  }
}

if (issues.length === 0) {
  console.log('scan ok:', targets.length, 'files');
} else {
  console.log(issues.join('\n'));
  process.exit(1);
}