gofigure/lib/processor/selector.js

Configuration library for node

const _ = require('lodash');

// eslint-disable-next-line consistent-return
const customizer = (objValue, sourceValue) => {
  if (Array.isArray(objValue)) {
    return sourceValue;
  }
};

const selectConfig = (originalConfig, env, defaultEnv, nodeType) => {
  if (!env) {
    return originalConfig;
  }
  const config = {};
  if (_.has(originalConfig, defaultEnv) || _.has(originalConfig, env)) {
    if (defaultEnv && _.has(originalConfig, defaultEnv)) {
      _.merge(config, originalConfig[defaultEnv]);
    }
    if (env && _.has(originalConfig, env)) {
      _.merge(config, originalConfig[env], customizer);
    }
    if (_.has(originalConfig, `type.${env}.${nodeType}`)) {
      _.merge(config, _.get(originalConfig, `type.${env}.${nodeType}`), customizer);
    }
  }
  return config;
};

const selector = (config, opts) => {
  const options = opts || {};
  const defaultEnvironment = options.defaultEnvironment || null;
  const environment = options.environment || null;
  const nodeType = options.nodeType || null;
  return selectConfig(config, environment, defaultEnvironment, nodeType);
};

module.exports = selector;