import rootReducer from '../reducers';

import rootSaga from '../sagas';

import { loadSessions } from '../actions/sessionsActions';

import { createStore, applyMiddleware, compose } from 'redux';

import { routerMiddleware } from 'react-router-redux';

import handleTransitions from 'redux-history-transitions';

import createSagaMiddleware from 'redux-saga'

import Immutable from 'immutable';

const token = localStorage.getItem('token');

const currentUser = localStorage.getItem('currentUser');

const defaultState = {

  currentSession: null,

  sessions: Immutable.List([]),

  notes: Immutable.List([]),

  isAuthenticated: token !== null,

  currentUser: currentUser ? JSON.parse(currentUser) : null,

  token: token,

  login: {

    loading: false,

    success: false,

    error: false,

  }

};

const storeInitialState = Immutable.Map(defaultState);

export default (history, initialState = storeInitialState) => {

  const router = routerMiddleware(history);

  const saga = createSagaMiddleware();

  const transitions = handleTransitions(history);

  const store = createStore(rootReducer, initialState, compose(

    applyMiddleware(router, saga),

    transitions

  ));

  store.dispatch(loadSessions());

  return store;

};