chatRedux/frontend/src/components/chatPage/generalChat/UserInfoButton.jsx

import { store } from "../../../store";
import { privateMessage } from "../../../reducers/userDataReducer";
import { useSelector } from "react-redux";
import { StyledAvatar } from "../messageForm/StyledAvatar";
import { Avatar } from "@mui/material";
import { useEffect,useState } from "react";
import {selectedUser} from "../../../reducers/dataReducers";
import {isNewPrivateMessages} from "../../../reducers/dataReducers";

export const UserInfoButton = ({item, i}) => {


    const SERVER_URL = process.env.REACT_APP_SERVER_URL

    const user = useSelector(state => state.getUserSocketReducer.socketUserData)
    const socket = useSelector(state => state.getUserSocketReducer.socket)
    const isPrivatChat = useSelector(state => state.userDataReducer.isPrivatChat)
    const chatId = useSelector(state => state.userDataReducer.toUser.socketId)
    const storeUserAvatar = useSelector(state => state.userDataReducer.avatar)
    const usersOnline = useSelector(state => state.getUserSocketReducer.usersOnline)

    const userNamesOnlineSet =  new Set(usersOnline.map( i => i.userName))

    let userAvatarUrl = storeUserAvatar || user.avatar;

    
    const newPrivateMessagesArray = useSelector(state => state.getUserSocketReducer.newPrivateMessagesArray)
    const isNewPrivate = useSelector(state => state.dataReducer.isNewPrivateMessages)


const [counter, setCounter] = useState(newPrivateMessagesArray.length)

useEffect(() => {
    store.dispatch(isNewPrivateMessages(true))
    console.log('true')
 } , [newPrivateMessagesArray]);



    return (
        <div 
        className={(item.socketId&&isPrivatChat&&(chatId === item.socketId))? 'online active' :'online' }                       
        onClick={(e) => {
            store.dispatch(selectedUser(item))
            store.dispatch(privateMessage({toUser: item}))
            store.dispatch(isNewPrivateMessages(false))
            setCounter(0) 
            socket.emit('privat chat', {
                user,
                to: item.socketId,
                toUser: item
              })
            }
        }
        >  
        
            <div style={{color: item.color}}>
            <StyledAvatar  key={i}  sx={{ marginRight:2}} 
                           anchorOrigin={{ vertical: 'bottom', horizontal: 'right' }}  
                           variant = {userNamesOnlineSet.has(item.userName)? 'dot' : ''}

>
                <Avatar 
                    src= {SERVER_URL + '/'+ item?.avatar}
                    sx={{ alignSelf: 'flex-end'}}
                    
                    > 
                    {item?.userName.slice(0, 1)}
                </Avatar>   

  
            </StyledAvatar>
                <span> {item.userName}  </span>
               {isNewPrivate && newPrivateMessagesArray.length > 0 && <span style={{color:'red',position: 'fixed' }} >  {counter}  </span>} 
            </div>
          
    </div>
    )
}