masto-fe-archos/app/javascript/mastodon/actions/store.js

import { Iterable, fromJS } from "immutable";

import { hydrateCompose } from "./compose";
import { importFetchedAccounts } from "./importer";
import { hydrateSearch } from "./search";

export const STORE_HYDRATE = "STORE_HYDRATE";
export const STORE_HYDRATE_LAZY = "STORE_HYDRATE_LAZY";

const convertState = rawState =>
  fromJS(rawState, (k, v) =>
    Iterable.isIndexed(v) ? v.toList() : v.toMap());

export function hydrateStore(rawState) {
  return dispatch => {
    const state = convertState(rawState);

    dispatch({
      type: STORE_HYDRATE,
      state,
    });

    dispatch(hydrateCompose());
    dispatch(hydrateSearch());
    dispatch(importFetchedAccounts(Object.values(rawState.accounts)));
  };
}