Handle network errors, improve Lightning setup, and add deposit events (#3127)

* fix: send all for lightning

* fix: adjust crypto amount parsing logic for send page outputs

* feat: add event handling for deposit transactions in Bitcoin and Lightning wallets

- Introduced `onCreateDepositTransactionEvent` and `onUpdateDepositTransactionEvent` callbacks to manage deposit transaction updates.
- Updated event listener logic to handle unclaimed and claimed deposit events.
- Added support for processing deposit transaction info with `ElectrumTransactionInfo`.

* fix: handle network errors on username validation and improve Lightning address setup

- Added network error handling for username validation with a fallback error.
- Enhanced Lightning address setup logic with error handling and a fail-safe mechanism to disable Lightning usage if the setup fails.

* fix: enhance error handling for Lightning and update validation patterns

* fix: remove redundant raw string mark from amount validation pattern

* fix: normalize crypto amount input by replacing commas with dots

lib/core/amount_validator.dart

@@ -65,7 +65,7 @@ class SymbolsAmountValidator extends TextValidator {
           maxLength: 0,
         );
 
-  static String _pattern() => '^([0-9]+([.\,][0-9]+)?|[.\,][0-9]+)\$';
+  static String _pattern() => r'^(?:\d+(?:[.\,]\d+)?|[.\,]\d+)$';
 }
 
 class DecimalAmountValidator extends TextValidator {

lib/entities/lnurlpay_record.dart

@@ -12,7 +12,8 @@ class LNUrlPayRecord {
   final String name;
   final String address;
 
-  static Future<String?> checkWellKnownUsername(String username, CryptoCurrency currency) async {
+  static Future<String?> checkWellKnownUsername(String username, CryptoCurrency currency,
+  {bool allowRethrow = false}) async {
     if (![CryptoCurrency.btc, CryptoCurrency.btcln].contains(currency)) return null;
 
     // split the string by the @ symbol:
@@ -40,6 +41,7 @@ class LNUrlPayRecord {
         return LNURL.encode(expectedUrl);
       }
     } catch (e) {
+      if (allowRethrow) rethrow;
       printV("error checking well-known username: $e");
     }
     return null;

lib/new-ui/pages/send_page.dart

@@ -691,12 +691,15 @@ class _NewSendPageState extends State<NewSendPage> {
   void _handleSend() async {
     //TODO refactor this action. code was copied over from old ui. i don't like it.
 
-    for(int i=0; i<widget.sendViewModel.outputs.length; i++) {
-      if(i < _amountControllers.length) {
-        if(_fiatInputMode) {
+    for (var i = 0; i < widget.sendViewModel.outputs.length; i++) {
+      if (i < _amountControllers.length && !widget.sendViewModel.outputs[i].sendAll) {
+        if (_fiatInputMode) {
           widget.sendViewModel.outputs[i].setFiatAmount(_amountControllers[i].text);
         } else {
-          widget.sendViewModel.outputs[i].cryptoAmount = _amountControllers[i].text;
+          final amount = widget.sendViewModel.amountParsingProxy.getCanonicalCryptoAmount(
+              _amountControllers[i].text.replaceAll(",", "."),
+              widget.sendViewModel.selectedCryptoCurrency);
+          widget.sendViewModel.outputs[i].setCryptoAmount(amount);
         }
       }
     }

lib/new-ui/viewmodels/lightning_username/lightning_username_bloc.dart

@@ -81,10 +81,15 @@ class LightningUsernameBloc extends Bloc<LightningUsernameEvent, LightningUserna
       return UsernameError(S.current.already_your_username, isInfo: true);
     }
 
-    if ((await LNUrlPayRecord.checkWellKnownUsername(
-            "${username}${usernameSuffix}", CryptoCurrency.btc)) !=
-        null) {
-      return UsernameError(S.current.username_not_available);
+    try {
+      if ((await LNUrlPayRecord.checkWellKnownUsername(
+              "${username}${usernameSuffix}", CryptoCurrency.btc,
+              allowRethrow: true)) !=
+          null) {
+        return UsernameError(S.current.username_not_available);
+      }
+    } catch (e) {
+      return UsernameError(S.current.username_check_your_network);
     }
 
     return null;

lib/new-ui/widgets/send_page/send_amount_input.dart

@@ -3,7 +3,6 @@ import 'package:cake_wallet/src/widgets/cake_image_widget.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_mobx/flutter_mobx.dart';
-import 'package:flutter_svg/flutter_svg.dart';
 
 class NewSendAmountInput extends StatefulWidget {
   const NewSendAmountInput(
@@ -66,7 +65,7 @@ class _NewSendAmountInputState extends State<NewSendAmountInput> {
                               keyboardType:
                                   TextInputType.numberWithOptions(signed: false, decimal: true),
                               inputFormatters: <TextInputFormatter>[
-                                FilteringTextInputFormatter.allow(RegExp(r'^\d*\.?\d*$'))
+                                FilteringTextInputFormatter.allow(RegExp(r'^\d*[.,]?\d*$'))
                               ],
                               onChanged: state.didChange,
                               controller: widget.amountController,

lib/utils/exception_handler.dart

@@ -301,7 +301,8 @@ class ExceptionHandler {
     "_QueuedFuture.execute (package:universal_ble/src/queue.dart:65)",
     "reown_core/relay_client/websocket/websocket_handler.dart",
     "Image upload failed due to loss of GPU access",
-    'transport error',
+    "transport error",
+    "SdkError.sparkError(field0: Operator RPC error: Connection error: status: Unavailable, message: \"dns error\", details: []"
   ];
 
   static Future<void> _addDeviceInfo(File file) async {