igor-store.js

import { createStore, applyMiddleware, combineReducers, compose } from 'redux';
import { createReactNavigationReduxMiddleware, createNavigationReducer, reduxifyNavigator } from 'react-navigation-redux-helpers';
import { connect } from 'react-redux';

// Middlewares
import createSagaMiddleware from 'redux-saga';

// Saga's
import user from './reducers/sagas/user'
import schedule from './reducers/sagas/schedule'
import evaluations from './reducers/sagas/evaluations'

import * as reducers from './reducers';

export default navigator => {
    const navReducer = createNavigationReducer(navigator)
    const reducer = combineReducers({
        nav: navReducer,
        ...reducers
    })

    const sagaMiddleware = createSagaMiddleware()
    const navMiddleware = createReactNavigationReduxMiddleware(
        "root",
        state => state.nav
    );
  
    const store = createStore(
        reducer,
        compose(
            applyMiddleware(navMiddleware),
            applyMiddleware(sagaMiddleware)
        )
    )

    const App = reduxifyNavigator(navigator, "root")
    const mapStateToProps = state => ({ state: state.nav })
    const AppWithNavigationState = connect(mapStateToProps)(App)

    // Run Saga's
    sagaMiddleware.run(user)
    sagaMiddleware.run(schedule)
    sagaMiddleware.run(evaluations)

    return { store, AppWithNavigationState }
}