Hi, it's me again! Hopefully you remember me from #145 😊

So I just wanna preface this by saying I don't expect this PR to get merged, but I did want to have a discussion!

I ended up really making myself at home on my fork while I worked on some stuff. A lot of changes in the diff are just boilerplate type things, but there's a lot of meat in there too.

Support for using Map and Set types in stores

Pretty simple, but adds a little machinery to serialize and deserialize Map and Set objects for initializing renderer state, like I had in my original PR

A greatly simplified API

import { syncMain } from 'electron-redux';
import { createStore } from 'redux';

const store = createStore(reducer, syncMain);

import { syncRenderer } from 'electron-redux';
import { createStore } from 'redux';

const store = createStore(reducer, syncRenderer);

That's it. That's all you need now. Renderer state initialization is now handled through an async action that we dispatch internally. Forwarding and replaying are handled from within the enhancer and don't need a separate function to subscribe to updates. It also doesn't need applyMiddleware. This was mostly out of necessity, since it doesn't provide the full store API, and I couldn't get the result I wanted without direct access to the store. It does have the nice side effect though of being just a little less code for the end user to type/understand. 🙂

Cleaned up some internal workings

Particularly the way that the initial state is fetched for renderer processes really got cleaned up. Rather than using global variables and a getter function, it uses idc communication which allows it to also happen asynchronously. The renderer will start with the usual default state determined by Redux, and will be swapped out once the correct state has been fetched from main.

Particularly the API changes are pretty substantial, but I'm curious what you think about them!