import {SET_NOTIFICATIONS_STATE,SET_OMITTED_FIELDS,SET_TOGGLEABLE_FIELDS,} from '../actions'const initialState = {notifications: false,toggleableFields: {},omittedFields: {},}export const settingsReducer = (previousState = initialState, payload) => {const { type, data } = payloadswitch (type) {case SET_NOTIFICATIONS_STATE:return {...previousState,notifications: data,}case SET_TOGGLEABLE_FIELDS:return {...previousState,toggleableFields: {...previousState.toggleableFields,...data,},}case SET_OMITTED_FIELDS:return {...previousState,omittedFields: {...previousState.omittedFields,...data,},}default:return previousState}}