import { useSetAtom } from 'jotai';
import { manualDndAtom } from '../state/manualDnd';
import { useTauriEvent } from './useTauri';

/** Detail shape of the `lotus-dnd-changed` event emitted by the native side. */
type DndChangedDetail = {
  active: boolean;
};

/**
 * P6-1 — Tray "Do Not Disturb" → notification suppression (desktop). Subscribes
 * to the native `lotus-dnd-changed` event (emitted when the user toggles the
 * tray "Do Not Disturb" item, `{ active }`) and mirrors it into `manualDndAtom`,
 * which the notification gate reads to suppress notifications while DND is on.
 * Inert in the browser, since `useTauriEvent` only listens under Tauri.
 */
export function useTauriDnd(): void {
  const setDnd = useSetAtom(manualDndAtom);

  useTauriEvent<DndChangedDetail>('lotus-dnd-changed', ({ active }) => setDnd(active));
}