/**
 * @see https://survivejs.com/webpack/developing/linting/
 */
import { Configuration, Options } from '../../../typings'

/**
 * @see https://github.com/MoOx/eslint-loader#quiet-default-false
 */
const ruleOptions = {
  failOnWarning: false,
  failOnError: false,
  quiet: true,
}
const rule = {
  test: /\.jsx?$/,
  loader: 'eslint-loader',
  exclude: /node_modules|modules/,
  options: ruleOptions,
}

/**
 * @todo Output to Jenkins compatible XML
 * @example
 *    outputReport: {
 *     filePath: 'checkstyle.xml',
 *     formatter: require('eslint/lib/formatters/checkstyle'),
 *    }
 */
export default function eslintPlugin(config: Configuration, options: Options) {
  if (options.isDev !== true) return

  if (process.env.ESLINT) {
    config.module.rules.push(rule)
  }
}