import { MENTIONED_MESSAGES } from '../actions/actionsTypes'; const initialState = { messages: [] }; export default function server(state = initialState, action) { switch (action.type) { case MENTIONED_MESSAGES.MESSAGES_RECEIVED: return { ...state, messages: [...state.messages, ...action.messages] }; case MENTIONED_MESSAGES.CLOSE: return initialState; default: return state; } }