Momento/memento-mobile/app/_layout.tsx

import { useEffect } from 'react'
import { Slot, useRouter, useSegments } from 'expo-router'
import { SafeAreaProvider } from 'react-native-safe-area-context'
import { StatusBar } from 'expo-status-bar'
import { View, ActivityIndicator } from 'react-native'
import { useAuthStore } from '@/lib/store'

export default function RootLayout() {
  const { user, loading, restore } = useAuthStore()
  const router = useRouter()
  const segments = useSegments()

  useEffect(() => {
    restore()
  }, [])

  useEffect(() => {
    if (loading) return
    const inAuth = segments[0] === '(auth)'
    if (!user && !inAuth) {
      router.replace('/(auth)/login')
    } else if (user && inAuth) {
      router.replace('/(tabs)/home')
    }
  }, [user, loading, segments])

  if (loading) {
    return (
      <View className="flex-1 items-center justify-center bg-paper">
        <ActivityIndicator size="large" color="#A47148" />
      </View>
    )
  }

  return (
    <SafeAreaProvider>
      <StatusBar style="auto" />
      <Slot />
    </SafeAreaProvider>
  )
}