import { useEffect, useState } from 'react';
import { odooApi } from '../services/odoo';
import { useAuth } from './auth';

/** Conteo global de mensajes de chat no leídos, con polling. */
export const useChatUnread = (intervalMs = 15000): number => {
  const { user } = useAuth();
  const [unread, setUnread] = useState(0);

  useEffect(() => {
    if (!user) {
      setUnread(0);
      return;
    }
    let alive = true;
    const fetchCount = () => {
      odooApi.getChatUnreadCount()
        .then((res) => { if (alive && res.status === 'success') setUnread(res.unread); })
        .catch(() => {});
    };
    fetchCount();
    const id = setInterval(fetchCount, intervalMs);
    return () => { alive = false; clearInterval(id); };
  }, [user, intervalMs]);

  return unread;
};