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Ensure null-safe Firebase auth handling #203

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Ensure null-safe Firebase auth handling #203

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d75935b
Handle unauthenticated users by redirecting to login
maxschwinghammer Aug 21, 2025
db0a276
Update app/src/main/java/com/freshkeeper/MainActivity.kt
maxschwinghammer Aug 21, 2025
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22 changes: 17 additions & 5 deletions app/src/main/java/com/freshkeeper/MainActivity.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -6,10 +6,12 @@ import android.os.Bundle
import android.widget.Toast
import androidx.activity.compose.setContent
import androidx.activity.enableEdgeToEdge
import androidx.compose.runtime.LaunchedEffect
import androidx.core.view.WindowCompat
import androidx.fragment.app.FragmentActivity
import androidx.navigation.NavHostController
import androidx.navigation.compose.rememberNavController
import com.freshkeeper.model.Screen
import com.freshkeeper.service.AssetFileManager
import com.freshkeeper.service.DeepLinkHandler
import com.freshkeeper.service.NetworkManager
Expand All @@ -31,7 +33,6 @@ class MainActivity : FragmentActivity() {
private lateinit var sharedPreferences: SharedPreferences
private var navController: NavHostController? = null
private lateinit var updateManager: UpdateManager
private val currentUserId = Firebase.auth.currentUser?.uid

override fun onCreate(savedInstanceState: Bundle?) {
enableEdgeToEdge()
Expand All @@ -54,10 +55,14 @@ class MainActivity : FragmentActivity() {

val notificationManager = NotificationManager(this)
notificationManager.setupNotificationChannel()
notificationManager.scheduleReminderIfEnabled(
currentUserId,
FirebaseFirestore.getInstance(),
)

val currentUserId = Firebase.auth.currentUser?.uid
if (currentUserId != null) {
notificationManager.scheduleReminderIfEnabled(
currentUserId,
FirebaseFirestore.getInstance(),
)
}

val networkManager = NetworkManager(this)

Expand All @@ -80,6 +85,13 @@ class MainActivity : FragmentActivity() {
saveLanguageToPreferences(languageCode)
updateLocale(languageCode)
}

LaunchedEffect(Unit) {
if (currentUserId == null && navController?.currentDestination?.route != Screen.SignIn.route) {
navController?.navigate(Screen.SignIn.route)
}
}

if (!networkManager.isNetworkAvailable()) {
Toast.makeText(this, "Please connect to the internet", Toast.LENGTH_LONG).show()
}
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