import { execFileSync, spawnSync } from 'node:child_process';
import { resolve } from 'node:path';

const root = resolve(import.meta.dirname, '../..');
const mode = process.argv[2];
if (!['lint', 'format'].includes(mode)) throw new Error('Usage: node run-changed-code-quality.mjs <lint|format>');

const base = process.env.QUALITY_BASE_REF ?? 'HEAD';
const tracked = execFileSync('git', ['diff', '--name-only', '--diff-filter=ACMR', base, '--'], {
  cwd: root,
  encoding: 'utf8',
});
const untracked = execFileSync('git', ['ls-files', '--others', '--exclude-standard'], { cwd: root, encoding: 'utf8' });
const files = [...new Set(`${tracked}\n${untracked}`.split(/\r?\n/).filter(Boolean))].filter((file) =>
  /^(?:src|api\/src|tools)\/.+\.(?:[cm]?[jt]sx?)$/.test(file),
);

if (!files.length) {
  console.log(`No changed code files require ${mode}.`);
  process.exit(0);
}

const executable =
  process.platform === 'win32'
    ? `${mode === 'lint' ? 'eslint' : 'prettier'}.cmd`
    : mode === 'lint'
      ? 'eslint'
      : 'prettier';
const args = mode === 'lint' ? files : ['--check', ...files];
const result = spawnSync(resolve(root, 'node_modules/.bin', executable), args, { cwd: root, stdio: 'inherit' });
process.exit(result.status ?? 1);