Fixes for update fiat rate after change of current wallet type. Fixes for change amount for btc transactions. Changed displaying of balance for btc wallet. General fixes.

lib/bitcoin/bitcoin_balance.dart

@@ -1,11 +1,13 @@
 import 'dart:convert';
 
+import 'package:cake_wallet/entities/balance_display_mode.dart';
 import 'package:flutter/foundation.dart';
 import 'package:cake_wallet/bitcoin/bitcoin_amount_format.dart';
 import 'package:cake_wallet/entities/balance.dart';
 
 class BitcoinBalance extends Balance {
-  const BitcoinBalance({@required this.confirmed, @required this.unconfirmed}) : super();
+  const BitcoinBalance({@required this.confirmed, @required this.unconfirmed})
+      : super(const [BalanceDisplayMode.availableBalance]);
 
   factory BitcoinBalance.fromJSON(String jsonSource) {
     if (jsonSource == null) {
@@ -30,6 +32,18 @@ class BitcoinBalance extends Balance {
 
   String get totalFormatted => bitcoinAmountToString(amount: total);
 
+  @override
+  String formattedBalance(BalanceDisplayMode mode) {
+    switch (mode) {
+      case BalanceDisplayMode.fullBalance:
+        return totalFormatted;
+      case BalanceDisplayMode.availableBalance:
+        return totalFormatted;
+      default:
+        return null;
+    }
+  }
+
   String toJSON() =>
       json.encode({'confirmed': confirmed, 'unconfirmed': unconfirmed});
 }

lib/bitcoin/bitcoin_wallet.dart

@@ -262,9 +262,8 @@ abstract class BitcoinWalletBase extends WalletBase<BitcoinBalance> with Store {
       final utxs = await unptsFutures;
 
       for (final utx in utxs) {
-        final inAmount = utx.value > totalAmount ? totalAmount : utx.value;
-        leftAmount = leftAmount - inAmount;
-        totalInputAmount += inAmount;
+        leftAmount = leftAmount - utx.value;
+        totalInputAmount += utx.value;
         inputs.add(utx);
 
         if (leftAmount <= 0) {
@@ -348,6 +347,11 @@ abstract class BitcoinWalletBase extends WalletBase<BitcoinBalance> with Store {
     // FIXME: Unimplemented
   }
 
+  @override
+  void close() {
+    
+  }
+
   void _subscribeForUpdates() {
     scriptHashes.forEach((sh) async {
       await _scripthashesUpdateSubject[sh]?.close();

lib/bitcoin/electrum.dart

@@ -75,7 +75,7 @@ class ElectrumClient {
       try {
         final jsoned =
             json.decode(utf8.decode(event.toList())) as Map<String, Object>;
-        print(jsoned);
+        // print(jsoned);
         final method = jsoned['method'];
         final id = jsoned['id'] as String;
         final result = jsoned['result'];
@@ -92,7 +92,9 @@ class ElectrumClient {
     }, onError: (Object error) {
       print(error.toString());
       _setIsConnected(false);
-    }, onDone: () => _setIsConnected(false));
+    }, onDone: () {
+      _setIsConnected(false);
+    });
     keepAlive();
   }
 
@@ -103,7 +105,7 @@ class ElectrumClient {
 
   Future<void> ping() async {
     try {
-      // await callWithTimeout(method: 'server.ping');
+      await callWithTimeout(method: 'server.ping');
       _setIsConnected(true);
     } on RequestFailedTimeoutException catch (_) {
       _setIsConnected(false);