fix: Restore backup bug fix and clean up sol error message (#1614)

* fix: Restore backup bug fix and clean up sol error message

* fix: Add async await to reinitialize

lib/reactions/bootstrap.dart

@@ -21,16 +21,14 @@ Future<void> bootstrap(GlobalKey<NavigatorState> navigatorKey) async {
   final settingsStore = getIt.get<SettingsStore>();
   final fiatConversionStore = getIt.get<FiatConversionStore>();
 
-  final currentWalletName = getIt
-      .get<SharedPreferences>()
-      .getString(PreferencesKey.currentWalletName);
+  final currentWalletName =
+      getIt.get<SharedPreferences>().getString(PreferencesKey.currentWalletName);
   if (currentWalletName != null) {
     authenticationStore.installed();
   }
 
-  startAuthenticationStateChange(authenticationStore, navigatorKey);
-  startCurrentWalletChangeReaction(
-      appStore, settingsStore, fiatConversionStore);
+  await startAuthenticationStateChange(authenticationStore, navigatorKey);
+  startCurrentWalletChangeReaction(appStore, settingsStore, fiatConversionStore);
   startCurrentFiatChangeReaction(appStore, settingsStore, fiatConversionStore);
   startCurrentFiatApiModeChangeReaction(appStore, settingsStore, fiatConversionStore);
   startOnCurrentNodeChangeReaction(appStore);

lib/reactions/on_authentication_state_change.dart

@@ -13,8 +13,20 @@ ReactionDisposer? _onAuthenticationStateChange;
 dynamic loginError;
 StreamController<dynamic> authenticatedErrorStreamController = StreamController<dynamic>();
 
-void startAuthenticationStateChange(
-    AuthenticationStore authenticationStore, GlobalKey<NavigatorState> navigatorKey) {
+Future<void> reInitializeStreamController() async {
+  if (!authenticatedErrorStreamController.isClosed) {
+    await authenticatedErrorStreamController.close();
+  }
+
+  authenticatedErrorStreamController = StreamController<dynamic>();
+}
+
+Future<void> startAuthenticationStateChange(
+  AuthenticationStore authenticationStore,
+  GlobalKey<NavigatorState> navigatorKey,
+) async {
+  await reInitializeStreamController();
+
   authenticatedErrorStreamController.stream.listen((event) {
     if (authenticationStore.state == AuthenticationState.allowed) {
       ExceptionHandler.showError(event.toString(), delayInSeconds: 3);

lib/view_model/send/send_view_model.dart

@@ -583,6 +583,30 @@ abstract class SendViewModelBase extends WalletChangeListenerViewModel with Stor
     String errorMessage = error.toString();
 
     if (walletType == WalletType.solana) {
+      if (errorMessage.contains('insufficient lamports')) {
+        double solValueNeeded = 0.0;
+
+        // Regular expression to match the number after "need". This shows the exact lamports the user needs to perform the transaction.
+        RegExp regExp = RegExp(r'need (\d+)');
+
+        // Find the match
+        Match? match = regExp.firstMatch(errorMessage);
+
+        if (match != null) {
+          String neededAmount = match.group(1)!;
+          final lamportsNeeded = int.tryParse(neededAmount);
+
+          // 5000 lamport used here is the constant for sending a transaction on solana
+          int lamportsPerSol = 1000000000;
+
+          solValueNeeded =
+              lamportsNeeded != null ? ((lamportsNeeded + 5000) / lamportsPerSol) : 0.0;
+          return S.current.insufficient_lamports(solValueNeeded.toString());
+        } else {
+          print("No match found.");
+          return S.current.insufficient_lamport_for_tx;
+        }
+      }
       if (errorMessage.contains('insufficient funds for rent')) {
         return S.current.insufficientFundsForRentError;
       }