shim.js

/* eslint-disable no-undef */
if (typeof __dirname === 'undefined') {
    global.__dirname = '/';
}
if (typeof __filename === 'undefined') {
    global.__filename = '';
}
if (typeof process === 'undefined') {
    global.process = require('process');
} else {
    const bProcess = require('process');
    for (var p in bProcess) {
        if (!(p in process)) {
            process[p] = bProcess[p];
        }
    }
}

process.browser = false;
if (typeof Buffer === 'undefined') {
    global.Buffer = require('buffer').Buffer;
}

// global.location = global.location || { port: 80 }
const isDev = typeof __DEV__ === 'boolean' && __DEV__;
process.env.NODE_ENV = isDev ? 'development' : 'production';
if (typeof localStorage !== 'undefined') {
    localStorage.debug = isDev ? '*' : '';
}

if (typeof Buffer.prototype.reverse === 'undefined') {
    var bufferReverse = require('buffer-reverse');

    Buffer.prototype.reverse = function () {
        return bufferReverse(this);
    };
}

// If using the crypto shim, uncomment the following line to ensure
// crypto is loaded first, so it can populate global.crypto
require('crypto-js');