update notification

src/stores/activities.ts

@@ -0,0 +1,27 @@
+import { NDKEvent } from '@nostr-dev-kit/ndk';
+import { create } from 'zustand';
+import { createJSONStorage, persist } from 'zustand/middleware';
+
+interface ActivitiesState {
+  activities: null | Array<NDKEvent>;
+  setActivities: (events: NDKEvent[]) => void;
+  addActivity: (event: NDKEvent) => void;
+}
+
+export const useActivities = create<ActivitiesState>()(
+  persist(
+    (set) => ({
+      activities: null,
+      setActivities: (events: NDKEvent[]) => {
+        set(() => ({ activities: events }));
+      },
+      addActivity: (event: NDKEvent) => {
+        set((state) => ({ activities: [event, ...state.activities] }));
+      },
+    }),
+    {
+      name: 'activities',
+      storage: createJSONStorage(() => localStorage),
+    }
+  )
+);