/**
* Polls the storeState for completion, and if found, dispatches MERGE_STORE.
* Once that completes, test to see if we're ready, in which case we clear
* the timer to stop polling
*
* @param {Object} storeToRehydrate the redux store to be rehydrated
* (defaults to store variable in this module)
*/
function _rehydrationIntervalCallback(storeToRehydrate = store) {
if (!areSelectorsReady(storeToRehydrate.getState())) {
storeToRehydrate.dispatch({type: "MERGE_STORE", data: rehydrateFromLocalStorage()});
if (areSelectorsReady(storeToRehydrate.getState())) {
clearInterval(_rehydrationIntervalTimer);
store = null; // allow the reference to be GCed
}
}
}
module.exports = function createActivityStreamStore(options) {
const {incoming, outgoing, logger, rehydrate, middleware} = options || {};
// Add a channel if incoming and outgoing events were specified
let channel;
if (incoming && outgoing) {
channel = new Channel({incoming, outgoing});
}
const mw = [thunk];
if (channel) {
mw.push(channel.middleware);
}
if (middleware) {
mw.push(middleware);
}
// Logger should be last in the middleware array
if (logger) {
mw.push(loggerMiddleware);
}
let initialStore = rehydrate ? rehydrateFromLocalStorage() : {};
store = createStore(
_mergeStateReducer(combineReducers(reducers)),
initialStore,
applyMiddleware(...mw)
);
// we only want to rehydrate stores that are rehydratable, i.e. the content
// stores.
//
if (rehydrate && !areSelectorsReady(store.getState())) {
_startRehydrationPolling();
}
if (channel) {
channel.connectStore(store);
}
return store;
};