text: import React, { useEffect } from "react";
  import { CSSTransition } from "react-transition-group";
  import { useDispatch, useSelector } from "react-redux";
  
  import s from "../../components/app.module.css";
  
  import shiftAppear from "../../components/animation/shiftAppear.module.css";
  import ContactForm from "../../components/contactForm/ContactForm";
  import ContactList from "../../components/contactList/ContactList";
  import ModalLoader from "../../components/loader/ModalLoader";
  import { getLoading } from "../../redux/selectors/contactsSelectors";
  import { getContactsList } from "../../redux/operations/phBookOperations";
  import { useHistory } from "react-router-dom";
  import { getIsAuthenticated } from "../../redux/selectors/authSelectors";
  import UserMenu from "../../components/userMenu/UserMenu";
  
  const Contacts = () => {
    const dispatch = useDispatch();
    const isAuthenticated = useSelector((state) => getIsAuthenticated(state));
    const isLoading = useSelector((state) => getLoading(state));
  
    const history = useHistory();
  
    useEffect(() => {
      if (!isAuthenticated) {
        history.replace("/login");
        return;
      }
      dispatch(getContactsList());
    }, []);
  
    return (
      <>
        {isLoading && <ModalLoader />}
        <div className={s.wrapper}>
          <CSSTransition
            in={true}
            appear
            classNames={shiftAppear}
            timeout={500}
            unmountOnExit
          >
            <div className={s.container}>
              <h1 className={s.headerPhoneboo}>Phonebook</h1>
              {isAuthenticated && <UserMenu />}
            </div>
          </CSSTransition>
          <ContactForm />
          <ContactList />
        </div>
      </>
    );
  };
  
  export default Contacts;
  