store.js

import { useMemo } from 'react';
import { createStore, applyMiddleware } from 'redux';
import thunkMiddleware from 'redux-thunk';
import reducers from './reducers';

let store;

const bindMiddlewares = middlewares => {
  if (process.env.NODE_ENV !== 'production') {
    const { composeWithDevTools } = require('redux-devtools-extension');
    const { logger } = require(`redux-logger`);
    middlewares.push(logger);

    return composeWithDevTools(applyMiddleware(...middlewares));
  }
  return applyMiddleware(...middlewares);
};

function initStore(initialState) {
  return createStore(
    reducers,
    initialState,
    bindMiddlewares([thunkMiddleware])
  );
}

export const initializeStore = (preloadedState) => {
  let _store = store ?? initStore(preloadedState);

  // After navigating to a page with an initial Redux state, merge that state
  // with the current state in the store, and create a new store
  if (preloadedState && store) {
    _store = initStore({
      ...store.getState(),
      ...preloadedState,
    });
    // Reset the current store
    store = undefined;
  }

  // For SSG and SSR always create a new store
  if (typeof window === 'undefined') return _store;
  // Create the store once in the client
  if (!store) store = _store;

  return _store;
};

export function useStore(initialState) {
  const store = useMemo(() => initializeStore(initialState), [initialState]);
  return store;
};