const {escapeRegExp, size, isString} = require('lodash');
const {SECRET_REPLACEMENT, SECRET_MIN_SIZE} = require('./definitions/constants');

module.exports = (env) => {
  const toReplace = Object.keys(env).filter(
    (envVar) => /token|password|credential|secret|private/i.test(envVar) && size(env[envVar].trim()) >= SECRET_MIN_SIZE
  );

  const regexp = new RegExp(toReplace.map((envVar) => escapeRegExp(env[envVar])).join('|'), 'g');
  return (output) =>
    output && isString(output) && toReplace.length > 0 ? output.toString().replace(regexp, SECRET_REPLACEMENT) : output;
};