/* eslint-disable import/no-extraneous-dependencies */

const loaderUtils = require('loader-utils');

module.exports = function getLocalIdent(context, localIdentName, localName, options) {
  // Use the filename or folder name, based on some uses the index.js /
  // index.module.css project style
  const fileNameOrFolder = context.resourcePath.endsWith('index.module.css')
    ? '[folder]'
    : '[name]';
  // Create a hash based on a the file location and class name. Will be unique
  // across a project, and close to globally unique.
  const hash = loaderUtils.getHashDigest(context.resourcePath + localName, 'md5', 'base64', 5);
  // Use loaderUtils to find the file or folder name
  const className = loaderUtils.interpolateName(
    context,
    `${fileNameOrFolder}_${localName}__${hash}`,
    options
  );
  // remove the .module that appears in every classname when based on the file.
  return className.replace('.module_', '_');
};