node-talisman/dist-src/utils/createDeepProxy.js

A npm package for running Thoughtwork's Talisman tool

import isObject from "./isObject.js";

const replacePlaceholdersInTargetValue = value => {
  const replacePlaceholders = placeholders => {
    return Object.keys(placeholders).reduce((accum, placeholder) => accum.replace(new RegExp(`{${placeholder}}`, 'g'), placeholders[placeholder]), value);
  };

  replacePlaceholders.toString = () => value;

  return replacePlaceholders;
};

const createDeepProxy = obj => new Proxy(obj, {
  get(target, prop) {
    const value = target[prop] || prop;

    if (isObject(value)) {
      return createDeepProxy(value);
    }

    return replacePlaceholdersInTargetValue(value);
  }

});

export default createDeepProxy;