Notifications + AsyncStorage

app/(tabs)/index.tsx

@@ -1,9 +1,34 @@
 import { defaultStyles } from "@/constants/defaultStyles";
+import { RegisterForLocalNotificationsAsync } from '@/lib/notifications';
 import { supabase } from "@/lib/supabase";
+import { Session } from '@supabase/supabase-js';
 import { Stack } from "expo-router";
+import { useEffect, useState } from 'react';
 import { Button, Text, View } from "react-native";
 
 export default function HomeScreen() {
+  const [session, SetSession] = useState<Session | null>(null);
+
+  useEffect(() => {
+    supabase.auth
+      .getSession()
+      .then(({ data }) => SetSession(data.session ?? null));
+
+    const { data: sub } = supabase.auth.onAuthStateChange(
+      (_event, newSession) => {
+        SetSession(newSession);
+      }
+    );
+
+    return () => sub.subscription.unsubscribe();
+  }, []);
+
+  useEffect(() => {
+    if (session) {
+      RegisterForLocalNotificationsAsync();
+    }
+  }, [session])
+
   return (
     <View style={defaultStyles.container}>
       <Stack.Screen