import { useEffect, useRef } from "react";

// The help widget can raise a support request from any screen, including an open Support list, so the
// list hears about it rather than waiting for the person to leave and come back.
const SUPPORT_TICKET_RAISED = "akashic:support-ticket-raised";

export const announceSupportTicketRaised = (): void => {
  window.dispatchEvent(new Event(SUPPORT_TICKET_RAISED));
};

export const useSupportTicketRaised = (reread: () => void): void => {
  const latest = useRef(reread);
  latest.current = reread;
  useEffect(() => {
    const onRaised = () => latest.current();
    window.addEventListener(SUPPORT_TICKET_RAISED, onRaised);
    return () => window.removeEventListener(SUPPORT_TICKET_RAISED, onRaised);
  }, []);
};