cinny/src/app/state/toast.ts

import { atom } from 'jotai';

export type ToastNotif = {
  id: string;
  avatarUrl?: string;
  displayName: string;
  body: string;
  roomName: string;
  roomId: string;
  hashPath?: string; // overrides window.location.hash navigation when set
};

const baseAtom = atom<ToastNotif[]>([]);

// Write-only setter used in ClientNonUIFeatures
export const toastQueueAtom = atom<ToastNotif[], [ToastNotif | null], void>(
  (get) => get(baseAtom),
  (get, set, notif) => {
    if (notif === null) return; // no-op guard
    set(baseAtom, [...get(baseAtom), notif]);
  },
);

export const dismissToastAtom = atom<null, [string], void>(null, (get, set, id) =>
  set(
    baseAtom,
    get(baseAtom).filter((t) => t.id !== id),
  ),
);