redux-localstorage middleware POC

export function localstorageMeta (key: string, reducer: any): any {
  return function(state: any, action: any): any {
    let nextState = reducer(state, action);

    let storageState = JSON.parse(localStorage.getItem(key));
    if (action.type === RESET_STATE || action.type.includes('DELETE')) {
      localStorage.removeItem(key);
    } else if (!state && storageState || action.type === '@@redux/INIT') {
      nextState = storageState;
    } else if (nextState && nextState !== storageState) {
      localStorage.setItem(key, JSON.stringify(nextState));
    }
    return nextState;
  };
};

// same with cookies
const Cookie = require('js-cookie');
import { RESET_STATE } from './reset';
export function cookieMeta (
  key: string,
  reducer: any,
  expiry: Date | number = 365,
  path: string = '/',
  domain: string = window.location.hostname): Function {
  return function(state: any, action: any): any {
    let nextState = reducer(state, action);
    let cookieState = Cookie.getJSON(key);

    if (action.type === RESET_STATE || action.type.includes('DELETE')) {
      Cookie.remove(key);
    } else if (!nextState && cookieState || action.type === '@@redux/INIT') {
      nextState = cookieState;
    } else if (nextState && nextState !== cookieState) {
        Cookie.set(key, nextState, { expires: expiry, path: path, domain: domain, secure: process.env.local });
    }
    return nextState;
  };
};