import { SORT_PREFERENCES } from '../actions/actionsTypes'; const initialState = { sortBy: 'activity', groupByType: false, showFavorites: false, showUnread: false }; export default (state = initialState, action) => { switch (action.type) { case SORT_PREFERENCES.SET_ALL: return { ...state, ...action.preferences }; case SORT_PREFERENCES.SET: return { ...state, ...action.preference }; default: return state; } };