feat: Refactor account management to use SharedPreferences for last logged public key for immediate access

app/src/main/java/com/rosetta/messenger/data/AccountManager.kt

@@ -19,9 +19,13 @@ class AccountManager(private val context: Context) {
         private val CURRENT_PUBLIC_KEY = stringPreferencesKey("current_public_key")
         private val ACCOUNTS_JSON = stringPreferencesKey("accounts_json")
         private val IS_LOGGED_IN = booleanPreferencesKey("is_logged_in")
-        private val LAST_LOGGED_PUBLIC_KEY = stringPreferencesKey("last_logged_public_key")
+        private const val PREFS_NAME = "rosetta_account_prefs"
+        private const val KEY_LAST_LOGGED = "last_logged_public_key"
     }
     
+    // Use SharedPreferences for last logged account - more reliable for immediate reads
+    private val sharedPrefs = context.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE)
+    
     val currentPublicKey: Flow<String?> = context.accountDataStore.data.map { preferences ->
         preferences[CURRENT_PUBLIC_KEY]
     }
@@ -34,12 +38,14 @@ class AccountManager(private val context: Context) {
         preferences[ACCOUNTS_JSON]
     }
     
-    val lastLoggedPublicKey: Flow<String?> = context.accountDataStore.data.map { preferences ->
+    // Synchronous read from SharedPreferences - always up to date
-        preferences[LAST_LOGGED_PUBLIC_KEY]
+    fun getLastLoggedPublicKey(): String? {
+        return sharedPrefs.getString(KEY_LAST_LOGGED, null)
     }
     
-    suspend fun getLastLoggedPublicKey(): String? {
+    // Synchronous write to SharedPreferences
-        return context.accountDataStore.data.first()[LAST_LOGGED_PUBLIC_KEY]
+    fun setLastLoggedPublicKey(publicKey: String) {
+        sharedPrefs.edit().putString(KEY_LAST_LOGGED, publicKey).commit() // commit() is synchronous
     }
     
     suspend fun saveAccount(account: EncryptedAccount) {
@@ -72,10 +78,12 @@ class AccountManager(private val context: Context) {
     }
     
     suspend fun setCurrentAccount(publicKey: String) {
+        // Save to SharedPreferences synchronously first
+        setLastLoggedPublicKey(publicKey)
+        
         context.accountDataStore.edit { preferences ->
             preferences[CURRENT_PUBLIC_KEY] = publicKey
             preferences[IS_LOGGED_IN] = true
-            preferences[LAST_LOGGED_PUBLIC_KEY] = publicKey
         }
     }
     

app/src/main/java/com/rosetta/messenger/ui/auth/UnlockScreen.kt

@@ -93,21 +93,30 @@ fun UnlockScreen(
             )
         }
         
-        // Select account - prioritize: selectedAccountId > lastLoggedPublicKey > first account
+        // Get last logged account from SharedPreferences (synchronous, reliable)
         val lastLoggedKey = accountManager.getLastLoggedPublicKey()
         
-        Log.d("UnlockScreen", "Loading accounts. selectedAccountId=$selectedAccountId, lastLoggedKey=$lastLoggedKey")
+        Log.d("UnlockScreen", "Loading accounts. lastLoggedKey=$lastLoggedKey")
         Log.d("UnlockScreen", "Available accounts: ${accounts.map { "${it.name}:${it.publicKey.take(8)}" }}")
         
-        // Find the target account
+        // Find the target account - prioritize selectedAccountId, then lastLoggedKey
         val targetAccount = when {
-            selectedAccountId != null -> accounts.find { it.publicKey == selectedAccountId }
+            selectedAccountId != null -> {
-            lastLoggedKey != null -> accounts.find { it.publicKey == lastLoggedKey }
+                Log.d("UnlockScreen", "Using selectedAccountId: $selectedAccountId")
-            else -> null
+                accounts.find { it.publicKey == selectedAccountId }
+            }
+            lastLoggedKey != null -> {
+                Log.d("UnlockScreen", "Using lastLoggedKey: ${lastLoggedKey.take(8)}")
+                accounts.find { it.publicKey == lastLoggedKey }
+            }
+            else -> {
+                Log.d("UnlockScreen", "No lastLoggedKey, using first account")
+                null
+            }
         }
         
         selectedAccount = targetAccount ?: accounts.firstOrNull()
-        Log.d("UnlockScreen", "Selected account: ${selectedAccount?.name}:${selectedAccount?.publicKey?.take(8)}")
+        Log.d("UnlockScreen", "Final selected: ${selectedAccount?.name}:${selectedAccount?.publicKey?.take(8)}")
     }
     
     // Filter accounts by search
@@ -136,8 +145,12 @@ fun UnlockScreen(
     // Auto-focus search when dropdown opens
     LaunchedEffect(isDropdownExpanded) {
         if (isDropdownExpanded) {
-            kotlinx.coroutines.delay(200)
+            kotlinx.coroutines.delay(300)
-            searchFocusRequester.requestFocus()
+            try {
+                searchFocusRequester.requestFocus()
+            } catch (e: Exception) {
+                // FocusRequester may not be attached yet, ignore
+            }
         } else {
             searchQuery = ""
         }