jan/web/app/_helpers/EventHandler.tsx

import { addNewMessageAtom, updateMessageAtom } from "@/_helpers/atoms/ChatMessage.atom";
import { toChatMessage } from "@/_models/ChatMessage";
import { events, EventName, NewMessageResponse } from "@janhq/core";
import { useSetAtom } from "jotai";
import { ReactNode, useEffect } from "react";

export default function EventHandler({ children }: { children: ReactNode }) {
  const addNewMessage = useSetAtom(addNewMessageAtom);
  const updateMessage = useSetAtom(updateMessageAtom);

  function handleNewMessageResponse(message: NewMessageResponse) {
    const newResponse = toChatMessage(message);
    addNewMessage(newResponse);
  }
  async function handleMessageResponseUpdate(messageResponse: NewMessageResponse) {
    if (messageResponse.conversationId && messageResponse._id && messageResponse.message)
      updateMessage(messageResponse._id, messageResponse.conversationId, messageResponse.message);
  }

  useEffect(() => {
    if (window.corePlugin.events) {
      events.on(EventName.OnNewMessageResponse, handleNewMessageResponse);
      events.on(EventName.OnMessageResponseUpdate, handleMessageResponseUpdate);
    }
  }, []);

  useEffect(() => {
    return () => {
      events.off(EventName.OnNewMessageResponse, handleNewMessageResponse);
      events.off(EventName.OnMessageResponseUpdate, handleMessageResponseUpdate);
    };
  }, []);
  return <> {children}</>;
}