const DEFAULT_RESOLVER_SETTING = {
  // https://github.com/benmosher/eslint-plugin-import/issues/1396
  // The default config is good enough, so just an empty object here
  [require.resolve('eslint-import-resolver-node')]: {}
}

/**
 * create an ESLint `settings` object
 * that help configure the import resolver with given aliases.
 * @param {Object} alias a key-value pair, key is the alias prefix, value is the actual path. Note it's not glob or regex.
 * @returns an object to be spread into `settings` property of ESLint config.
 */
module.exports = function createAliasSetting (alias) {
  return {
    'import/resolver': {
      ...DEFAULT_RESOLVER_SETTING,
      [require.resolve('eslint-import-resolver-custom-alias')]: {
        alias,
        extensions: ['.mjs', '.js', '.jsx', '.json', '.node']
      }
    }
  }
}

module.exports.DEFAULT_RESOLVER_SETTING = DEFAULT_RESOLVER_SETTING