import process from 'node:process';

import { ESLint } from 'eslint';

const eslint = new ESLint({ fix: true });
const candidates = [];

for (const filePath of process.argv.slice(2)) {
  if (!(await eslint.isPathIgnored(filePath))) {
    candidates.push(filePath);
  }
}

if (candidates.length === 0) {
  process.exit(0);
}

const results = await eslint.lintFiles(candidates);
await ESLint.outputFixes(results);

const formatter = await eslint.loadFormatter('stylish');
const output = formatter.format(results);
if (output) {
  process.stderr.write(output);
}

const errorCount = results.reduce((sum, result) => sum + result.errorCount, 0);
const warningCount = results.reduce(
  (sum, result) => sum + result.warningCount,
  0,
);
if (errorCount > 0 || warningCount > 0) {
  process.exitCode = 1;
}