import { useCallback, useEffect, useState } from "react";
import { type ToastItem } from "@nodedc/ui-react";
import { APIError, loginFromLaunch, request, type Status } from "./api";

export function useNode() {
  const [value, setValue] = useState<Status | null>(null);
  const [pending, setPending] = useState(true);
  const [locked, setLocked] = useState(false);
  const [toasts, setToasts] = useState<ToastItem[]>([]);
  const failure = useCallback((error: unknown) => {
    if (error instanceof APIError && error.status === 401) { setValue(null); setLocked(true); }
    setToasts([{ id: "request", tone: "error", title: error instanceof Error ? error.message : "Нода недоступна", durationMs: null }]);
  }, []);
  const refresh = useCallback(async () => {
    setPending(true);
    try { const result = await request<Status>("/api/status"); setValue(result); setLocked(false); setToasts([]); }
    catch (error) { failure(error); }
    finally { setPending(false); }
  }, [failure]);
  useEffect(() => {
    const launch = () => { void loginFromLaunch().then(refresh).then(()=>window.dispatchEvent(new Event("mission-core-session-ready"))).catch(error => { failure(error); setPending(false); }); };
    launch(); window.addEventListener("hashchange", launch);
    return () => window.removeEventListener("hashchange", launch);
  }, [refresh, failure]);
  const success = useCallback((title: string) => setToasts([{ id: "request", tone: "success", title }]), []);
  return { value, pending, locked, refresh, failure, success, toasts,
    dismiss: (id: string) => setToasts(items => items.filter(item => item.id !== id)) };
}