/**
 * @file what this does, is load an *in-memory* polyfill of `history` when
 *       on server, or in test
 * @api https://www.npmjs.com/package/history
 */

// @todo
import { createBrowserHistory, createMemoryHistory } from 'history'

const history = (
  typeof window !== 'object' ||
  process.env.BUILD_FLAG_IS_SERVER === 'true' ||
  process.env.NODE_ENV === 'test'
) ? createMemoryHistory : createBrowserHistory

// if (
//   typeof window !== 'object' ||
//   process.env.BUILD_FLAG_IS_SERVER === 'true' ||
//   process.env.NODE_ENV === 'test'
// ) {
//   // console.log('memoryHistory')
//   history = require('history').createMemoryHistory
// } else {
//   // console.log('browserHistory')
//   history = require('history').createBrowserHistory
// }

let created
const makeHistory = (props?: any) => {
  if (created !== undefined) {
    return created
  }
  created = history()
  return created
}

export { makeHistory }
export default makeHistory