client/src/components/ConversationsOverviewCard.js

import React, { useEffect, useState } from 'react';
import { Card, CardActionArea, CardContent, CircularProgress, Typography } from '@mui/material';
import { useNavigate, useParams } from 'react-router';
import authManager from '../AuthManager'
import Conversation from '../../../model/Conversation';

export default function ConversationsOverviewCard(props) {
  const navigate = useNavigate()
  const accountId = props.accountId || useParams().accountId
  const [loaded, setLoaded] = useState(false)
  const [conversations, setConversations] = useState([])

  useEffect(() => {
    const controller = new AbortController()
    authManager.fetch(`/api/accounts/${accountId}/conversations`, { signal: controller.signal })
      .then(res => res.json())
      .then(result => {
        console.log(result)
        setLoaded(true)
        setConversations(Object.values(result).map(c => Conversation.from(accountId, c)))
      })
    // return () => controller.abort() // crash on React18
  }, [accountId])

  return (
    <Card onClick={() => navigate(`/account/${accountId}`)} >
      <CardActionArea>
        <CardContent>
          <Typography color="textSecondary" gutterBottom>
            Conversations
          </Typography>
          <Typography gutterBottom variant="h5" component="h2">
            {loaded ? conversations.length : <CircularProgress size={24} />}
          </Typography>
        </CardContent>
      </CardActionArea>
    </Card>
  )
}