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

diff --git a/cw_bitcoin/lib/bitcoin_wallet.dart b/cw_bitcoin/lib/bitcoin_wallet.dart
index 24618844..a75de4d4 100644
--- a/cw_bitcoin/lib/bitcoin_wallet.dart
+++ b/cw_bitcoin/lib/bitcoin_wallet.dart
@@ -112,10 +112,7 @@ abstract class BitcoinWalletBase extends ElectrumWallet with Store {
         );
       } catch (e) {
         printV(e);
-        lightningWallet = null;
       }
-    } else {
-      lightningWallet = null;
     }
 
     payjoinManager = PayjoinManager(PayjoinStorage(payjoinBox), this);
@@ -153,6 +150,7 @@ abstract class BitcoinWalletBase extends ElectrumWallet with Store {
             lnurlDomain: "cake.cash",
             cachedAddress: cachedLightningAddress,
           );
+          walletAddresses.setLightningAddress(walletInfo.name);
         }
       } else {
         lightningWallet = null;
@@ -367,6 +365,18 @@ abstract class BitcoinWalletBase extends ElectrumWallet with Store {
             await fetchBalances();
           }
         },
+        onCreateDepositTransactionEvent: (txs) async {
+          if (txs.isNotEmpty) {
+            transactionHistory.addMany(txs);
+            await transactionHistory.save();
+          }
+        },
+        onUpdateDepositTransactionEvent: (txs) async {
+          if (txs.isNotEmpty) {
+            txs.forEach((tx) => transactionHistory.transactions.remove(tx.id));
+            await transactionHistory.save();
+          }
+        },
         onBalanceChangedEvent: fetchBalances,
       );
     }
@@ -390,7 +400,7 @@ abstract class BitcoinWalletBase extends ElectrumWallet with Store {
     return super.fetchTransactions();
   }
 
-  late LightningWallet? lightningWallet;
+  LightningWallet? lightningWallet;
 
   late final PayjoinManager payjoinManager;
 
@@ -479,10 +489,9 @@ abstract class BitcoinWalletBase extends ElectrumWallet with Store {
     final isLNCompatible = await lightningWallet?.isCompatible(lnAddr);
     if ((credentials.coinTypeToSpendFrom == UnspentCoinType.lightning && lightningWallet != null) ||
         isLNCompatible == true) {
-
       BigInt amount;
       if (credentials.outputs.first.sendAll) {
-        amount = (await lightningWallet!.getBalance()) - BigInt.from(10);
+        amount = await lightningWallet!.getBalance();
       } else {
         amount = parseFixed(
             credentials.outputs.first.cryptoAmount?.isNotEmpty == true
@@ -491,8 +500,8 @@ abstract class BitcoinWalletBase extends ElectrumWallet with Store {
             8);
       }
 
-      return lightningWallet!.createTransaction(lnAddr,
-          amount > BigInt.zero ? amount : null, credentials.priority);
+      return lightningWallet!.createTransaction(lnAddr, amount > BigInt.zero ? amount : null,
+          credentials.priority, credentials.outputs.first.sendAll);
     }
 
     final tx = (await super.createTransaction(credentials)) as PendingBitcoinTransaction;
diff --git a/cw_bitcoin/lib/electrum_wallet_addresses.dart b/cw_bitcoin/lib/electrum_wallet_addresses.dart
index 15e0e02d..0c334385 100644
--- a/cw_bitcoin/lib/electrum_wallet_addresses.dart
+++ b/cw_bitcoin/lib/electrum_wallet_addresses.dart
@@ -3,6 +3,7 @@ import 'dart:math';
 
 import 'package:bitcoin_base/bitcoin_base.dart';
 import 'package:blockchain_utils/blockchain_utils.dart';
+import 'package:breez_sdk_spark_flutter/breez_sdk_spark.dart';
 import 'package:cw_bitcoin/bitcoin_address_record.dart';
 import 'package:cw_bitcoin/bitcoin_unspent.dart';
 import 'package:cw_bitcoin/lightning/lightning_addres_type.dart';
@@ -807,10 +808,11 @@ abstract class ElectrumWalletAddressesBase extends WalletAddresses with Store {
         printV(username);
         rethrow;
       }
-    } catch (e) {
-      // make sure lightningAddress gets initialized anyway
+    } on SdkError_NetworkError catch (_) {
+    } on SdkError_SparkError catch (e) {
+      if (!e.field0.contains("dns")) rethrow;
+    } finally {
       lightningAddress ??= lightningWallet!.cachedAddress;
-      rethrow;
     }
   }
 }
diff --git a/cw_bitcoin/lib/lightning/lightning_wallet.dart b/cw_bitcoin/lib/lightning/lightning_wallet.dart
index 8f713b21..12a28776 100644
--- a/cw_bitcoin/lib/lightning/lightning_wallet.dart
+++ b/cw_bitcoin/lib/lightning/lightning_wallet.dart
@@ -137,17 +137,24 @@ class LightningWallet {
         .lightningAddress;
   }
 
-  Future<String> getBolt11Invoice(BigInt? amount, String description) async {
-    final response = await sdk.receivePayment(
-      request: ReceivePaymentRequest(
-        paymentMethod: ReceivePaymentMethod.bolt11Invoice(
-          description: description,
-          amountSats: amount,
+  Future<String?> getBolt11Invoice(BigInt? amount, String description) async {
+    try {
+      final response = await sdk.receivePayment(
+        request: ReceivePaymentRequest(
+          paymentMethod: ReceivePaymentMethod.bolt11Invoice(
+            description: description,
+            amountSats: amount,
+          ),
         ),
-      ),
-    );
+      );
 
-    return response.paymentRequest;
+      return response.paymentRequest;
+    } on SdkError_NetworkError catch (_) {
+      return null;
+    } on SdkError_SparkError catch (e) {
+      if (!e.field0.contains("dns")) rethrow;
+      return null;
+    }
   }
 
   Future<bool> isCompatible(String input) async {
@@ -162,12 +169,14 @@ class LightningWallet {
   }
 
   Future<PendingLightningTransaction> createTransaction(
-      String address, BigInt? amountSats, BitcoinTransactionPriority? priority) async {
+      String address, BigInt? amountSats, BitcoinTransactionPriority? priority, bool feesIncluded) async {
     final inputType = await sdk.parse(input: address);
 
+    final feePolicy = feesIncluded ? FeePolicy.feesIncluded : FeePolicy.feesExcluded;
+
     if (inputType is InputType_Bolt11Invoice) {
       final request = PrepareSendPaymentRequest(
-          paymentRequest: inputType.field0.invoice.bolt11, amount: amountSats);
+          paymentRequest: inputType.field0.invoice.bolt11, amount: amountSats, feePolicy: feePolicy);
       final prepareResponse = await sdk.prepareSendPayment(request: request);
 
       final paymentMethod = prepareResponse.paymentMethod;
@@ -177,7 +186,7 @@ class LightningWallet {
 
         return PendingLightningTransaction(
           id: paymentMethod.invoiceDetails.paymentHash,
-          amount: amountSats?.toInt() ??
+          amount: request.amount?.toInt() ?? amountSats?.toInt() ??
               ((paymentMethod.invoiceDetails.amountMsat?.toInt() ?? 0) / 1000).round(),
           fee: lightningFeeSats.toInt() + (sparkTransferFeeSats?.toInt() ?? 0),
           commitOverride: () async {
@@ -203,12 +212,14 @@ class LightningWallet {
           amountSats: amountSats!,
           payRequest: inputType.field0.payRequest,
           validateSuccessActionUrl: optionalValidateSuccessActionUrl,
+          feePolicy: feePolicy,
         );
       } else {
         request = PrepareLnurlPayRequest(
           amountSats: amountSats!,
           payRequest: (inputType as InputType_LnurlPay).field0,
           validateSuccessActionUrl: optionalValidateSuccessActionUrl,
+          feePolicy: feePolicy,
         );
       }
 
@@ -218,7 +229,7 @@ class LightningWallet {
 
       return PendingLightningTransaction(
         id: prepareResponse.invoiceDetails.paymentHash,
-        amount: ((prepareResponse.invoiceDetails.amountMsat?.toInt() ?? 0) / 1000).round(),
+        amount: prepareResponse.amountSats.toInt(),
         fee: feeSats.toInt(),
         commitOverride: () async {
           final res =
@@ -227,8 +238,11 @@ class LightningWallet {
         },
       );
     } else if (inputType is InputType_BitcoinAddress) {
-      final request =
-          PrepareSendPaymentRequest(paymentRequest: inputType.field0.address, amount: amountSats);
+      final request = PrepareSendPaymentRequest(
+        paymentRequest: inputType.field0.address,
+        amount: amountSats,
+        feePolicy: feePolicy,
+      );
       final prepareResponse = await sdk.prepareSendPayment(request: request);
 
       final paymentMethod = prepareResponse.paymentMethod;
@@ -355,8 +369,12 @@ class LightningWallet {
     return response.txHex;
   }
 
-  void setEventListener(
-      {required Function(ElectrumTransactionInfo) onTransactionEvent, required Function onBalanceChangedEvent}) {
+  void setEventListener({
+    required Function(ElectrumTransactionInfo) onTransactionEvent,
+    required Function onBalanceChangedEvent,
+    required Function(Map<String, ElectrumTransactionInfo>) onCreateDepositTransactionEvent,
+    required Function(List<ElectrumTransactionInfo>) onUpdateDepositTransactionEvent,
+  }) {
     _eventSubscription = _eventStream?.listen((sdkEvent) {
       if (sdkEvent is SdkEvent_PaymentSucceeded) {
         onTransactionEvent(_getElectrumTransactionInfoFromPayment(sdkEvent.payment));
@@ -364,6 +382,16 @@ class LightningWallet {
         onTransactionEvent(_getElectrumTransactionInfoFromPayment(sdkEvent.payment));
       } else if (sdkEvent is SdkEvent_ClaimedDeposits) {
         onBalanceChangedEvent();
+        onUpdateDepositTransactionEvent(
+            sdkEvent.claimedDeposits.map(_getElectrumTransactionInfoFromDepositInfo).toList());
+      } else if (sdkEvent is SdkEvent_UnclaimedDeposits) {
+        final unclaimedDeposits = <String, ElectrumTransactionInfo>{};
+
+        for (final deposit in sdkEvent.unclaimedDeposits) {
+          unclaimedDeposits[deposit.txid] = _getElectrumTransactionInfoFromDepositInfo(deposit);
+        }
+
+        onCreateDepositTransactionEvent(unclaimedDeposits);
       }
     });
   }
@@ -390,4 +418,18 @@ class LightningWallet {
       additionalInfo: {"isLightning": true},
     );
   }
+
+  ElectrumTransactionInfo _getElectrumTransactionInfoFromDepositInfo(DepositInfo deposit) {
+    return ElectrumTransactionInfo(
+      WalletType.bitcoin,
+      id: deposit.txid,
+      amount: deposit.amountSats.toInt(),
+      direction: TransactionDirection.incoming,
+      isPending: true,
+      fee: 0,
+      date: DateTime.now(),
+      confirmations: 0,
+      additionalInfo: {"isLightning": true, "isSparkDeposit": true},
+    );
+  }
 }
diff --git a/lib/core/amount_validator.dart b/lib/core/amount_validator.dart
index d056ad0c..dfa99993 100644
--- a/lib/core/amount_validator.dart
+++ b/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 {
diff --git a/lib/entities/lnurlpay_record.dart b/lib/entities/lnurlpay_record.dart
index c6e9788a..35fec0d5 100644
--- a/lib/entities/lnurlpay_record.dart
+++ b/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;
diff --git a/lib/new-ui/pages/send_page.dart b/lib/new-ui/pages/send_page.dart
index 90ec3279..b27bf829 100644
--- a/lib/new-ui/pages/send_page.dart
+++ b/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);
         }
       }
     }
diff --git a/lib/new-ui/viewmodels/lightning_username/lightning_username_bloc.dart b/lib/new-ui/viewmodels/lightning_username/lightning_username_bloc.dart
index 4cf78de6..435154aa 100644
--- a/lib/new-ui/viewmodels/lightning_username/lightning_username_bloc.dart
+++ b/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;
diff --git a/lib/new-ui/widgets/send_page/send_amount_input.dart b/lib/new-ui/widgets/send_page/send_amount_input.dart
index 178b316d..99b25c39 100644
--- a/lib/new-ui/widgets/send_page/send_amount_input.dart
+++ b/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,
diff --git a/lib/utils/exception_handler.dart b/lib/utils/exception_handler.dart
index 9711fdf1..9bee1704 100644
--- a/lib/utils/exception_handler.dart
+++ b/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 {
diff --git a/res/values/strings_de.arb b/res/values/strings_de.arb
index 4737c1d5..f01448c0 100644
--- a/res/values/strings_de.arb
+++ b/res/values/strings_de.arb
@@ -1273,6 +1273,7 @@
   "username_length_error": "Benutzernamen müssen 6–32 alphanumerische Zeichen enthalten.",
   "username_length_error_1_64": "Benutzernamen müssen 1–64 alphanumerische Zeichen enthalten.",
   "username_not_available": "Dieser Benutzername ist nicht verfügbar.",
+  "username_check_your_network": "Benutzername konnte nicht geprüft werden. Bitte überprüfen Sie Ihre Netzwerkverbindung.",
   "value": "Wert",
   "value_type": "Werttyp",
   "variable_pair_not_supported": "Dieses Variablenpaar wird von den ausgewählten Börsen nicht unterstützt",
@@ -1373,4 +1374,4 @@
   "zcash_card_missing_funds": "Fehlende Gelder?",
   "zcash_card_scan": "Scannen",
   "zcash_card_warning": "Schließen Sie die App nicht, bis der Vorgang abgeschlossen ist. Andernfalls muss der Vorgang von Grund auf neu gestartet werden."
-}
\ No newline at end of file
+}
diff --git a/res/values/strings_en.arb b/res/values/strings_en.arb
index f3f732c2..832ea23a 100644
--- a/res/values/strings_en.arb
+++ b/res/values/strings_en.arb
@@ -1272,6 +1272,7 @@
   "username_length_error": "Usernames must contain 6-32 alphanumeric characters.",
   "username_length_error_1_64": "Usernames must contain 1-64 alphanumeric characters.",
   "username_not_available": "This username is not available.",
+  "username_check_your_network": "Unable to check username. Please check your network connection.",
   "value": "Value",
   "value_type": "Value Type",
   "variable_pair_not_supported": "This variable pair is not supported with the selected exchanges",
@@ -1371,4 +1372,4 @@
   "zcash_card_missing_funds": "Missing funds?",
   "zcash_card_scan": "Scan",
   "zcash_card_warning": "Do not close the app until the procedure completes, if you do so this process will need to restart from scratch."
-}
\ No newline at end of file
+}