import { readFileSync, existsSync } from 'node:fs';
import { execSync } from 'node:child_process';

const root = 'd:/work/ylrz_saas';
const files = execSync('git show --name-only --pretty=format: 5dfe60ed', { cwd: root })
  .toString('utf8')
  .split(/\r?\n/)
  .filter(Boolean);

function scanFile(rel) {
  const path = `${root}/${rel.replace(/\\/g, '/')}`;
  if (!existsSync(path)) return null;
  if (!/\.(java|js|vue|sql|xml)$/.test(rel)) return null;
  const raw = readFileSync(path);
  const t = raw.toString('utf8');
  const bom = raw.length >= 3 && raw[0] === 0xef && raw[1] === 0xbb && raw[2] === 0xbf;
  const badLines = [];
  t.split('\n').forEach((line, i) => {
    if (line.includes('\uFFFD')) {
      badLines.push({ line: i + 1, kind: 'FFFD', text: line.trim().slice(0, 100) });
    } else if (/[^\s"'/]\?{2,}[^\s?]/.test(line)) {
      badLines.push({ line: i + 1, kind: 'qmarks', text: line.trim().slice(0, 100) });
    }
  });
  const unicodeEscapes = (t.match(/\\u[0-9a-fA-F]{4}/g) || []).length;
  if (!bom && !badLines.length && unicodeEscapes === 0) return null;
  return { rel, bom, badLines: badLines.slice(0, 8), badLineCount: badLines.length, unicodeEscapes };
}

const results = files.map(scanFile).filter(Boolean);
console.log(JSON.stringify(results, null, 2));
console.log('files with issues:', results.length);