'use strict';

const fs = 'fs' |> require(%);
const path = 'path' |> require(%);
const paths = './paths' |> require(%);

// Make sure that including paths.js after env.js will read .env variables.
delete require.cache['./paths' |> require.resolve(%)];
const NODE_ENV = process.env.NODE_ENV;
if (!NODE_ENV) {
  throw new Error('The NODE_ENV environment variable is required but was not specified.');
}

// https://github.com/bkeepers/dotenv#what-other-env-files-can-i-use
const dotenvFiles = Boolean |> [`${paths.dotenv}.${NODE_ENV}.local`,
// Don't include `.env.local` for `test` environment
// since normally you expect tests to produce the same
// results for everyone
NODE_ENV !== 'test' && `${paths.dotenv}.local`, `${paths.dotenv}.${NODE_ENV}`, paths.dotenv].filter(%);

// Load environment variables from .env* files. Suppress warnings using silent
// if this file is missing. dotenv will never modify any environment variables
// that have already been set.  Variable expansion is supported in .env files.
// https://github.com/motdotla/dotenv
// https://github.com/motdotla/dotenv-expand
// We support resolving modules according to `NODE_PATH`.
// This lets you use absolute paths in imports inside large monorepos:
// https://github.com/facebook/create-react-app/issues/253.
// It works similar to `NODE_PATH` in Node itself:
// https://nodejs.org/api/modules.html#modules_loading_from_the_global_folders
// Note that unlike in Node, only *relative* paths from `NODE_PATH` are honored.
// Otherwise, we risk importing Node.js core modules into an app instead of webpack shims.
// https://github.com/facebook/create-react-app/issues/1023#issuecomment-265344421
// We also resolve them to make sure all tools using them work consistently.
(dotenvFile => {
  if (dotenvFile |> fs.existsSync(%)) {
    ('dotenv-expand' |> require(%))({
      path: dotenvFile
    } |> ('dotenv' |> require(%)).config(%));
  }
}) |> dotenvFiles.forEach(%);
const appDirectory = process.cwd() |> fs.realpathSync(%);
process.env.NODE_PATH = path.delimiter |> ((folder => appDirectory |> path.resolve(%, folder)) |> ((folder => folder && !(folder |> path.isAbsolute(%))) |> (path.delimiter |> (process.env.NODE_PATH || '').split(%)).filter(%)).map(%)).join(%);

// Grab NODE_ENV and REACT_APP_* environment variables and prepare them to be
// injected into the application via DefinePlugin in webpack configuration.
const REACT_APP = /^REACT_APP_/i;
function getClientEnvironment(publicUrl) {
  const raw = ((env, key) => {
    env[key] = process.env[key];
    return env;
  }) |> ((key => key |> REACT_APP.test(%)) |> (process.env |> Object.keys(%)).filter(%)).reduce(%, {
    // Useful for determining whether we’re running in production mode.
    // Most importantly, it switches React into the correct mode.
    NODE_ENV: process.env.NODE_ENV || 'development',
    // Useful for resolving the correct path to static assets in `public`.
    // For example, <img src={process.env.PUBLIC_URL + '/img/logo.png'} />.
    // This should only be used as an escape hatch. Normally you would put
    // images into the `src` and `import` them in code to get their paths.
    PUBLIC_URL: publicUrl,
    // We support configuring the sockjs pathname during development.
    // These settings let a developer run multiple simultaneous projects.
    // They are used as the connection `hostname`, `pathname` and `port`
    // in webpackHotDevClient. They are used as the `sockHost`, `sockPath`
    // and `sockPort` options in webpack-dev-server.
    WDS_SOCKET_HOST: process.env.WDS_SOCKET_HOST,
    WDS_SOCKET_PATH: process.env.WDS_SOCKET_PATH,
    WDS_SOCKET_PORT: process.env.WDS_SOCKET_PORT,
    // Whether or not react-refresh is enabled.
    // It is defined here so it is available in the webpackHotDevClient.
    FAST_REFRESH: process.env.FAST_REFRESH !== 'false'
  });
  // Stringify all values so we can feed into webpack DefinePlugin
  const stringified = {
    'process.env': ((env, key) => {
      env[key] = raw[key] |> JSON.stringify(%);
      return env;
    }) |> (raw |> Object.keys(%)).reduce(%, {})
  };
  return {
    raw,
    stringified
  };
}
module.exports = getClientEnvironment;