Added watch only wallet for use in tumble bit

Breeze/src/Breeze.Daemon/Program.cs

@@ -18,6 +18,7 @@ using Stratis.Bitcoin.Miner;
 using Stratis.Bitcoin.Notifications;
 using Stratis.Bitcoin.Utilities;
 using Stratis.Bitcoin.Wallet;
+using Stratis.Bitcoin.WatchOnlyWallet;
 
 namespace Breeze.Daemon
 {
@@ -90,6 +91,7 @@ namespace Breeze.Daemon
             {
                 tumblerAddress = tumblerAddress.Replace("-tumbler-uri=", string.Empty);
                 fullNodeBuilder.UseTumbleBit(new Uri(tumblerAddress));
+                fullNodeBuilder.UseWatchOnlyWallet();
             }
 
             var node = fullNodeBuilder.Build();

Breeze/src/Breeze.TumbleBit.Client/ExternalServices.cs

@@ -14,10 +14,6 @@ namespace Breeze.TumbleBit.Client
             return null;
         }
         
-        public void Track(Script scriptPubkey)
-        {
-        }
-
         public bool Broadcast(Transaction tx)
         {
             return true;

Breeze/src/Breeze.TumbleBit.Client/PaymentStateMachine.cs

@@ -99,7 +99,7 @@ namespace Breeze.TumbleBit.Client
 
                         // Tracker.AddressCreated(cycle.Start, TransactionType.ClientEscrow, escrowTxOut.ScriptPubKey, correlation);
                         // Tracker.TransactionCreated(cycle.Start, TransactionType.ClientEscrow, clientEscrowTx.GetHash(), correlation);                        
-                        services.Track(escrowTxOut.ScriptPubKey);
+                        this.watchOnlyWalletManager.Watch(escrowTxOut.ScriptPubKey);
                         
                         var redeemDestination = this.OriginWallet.GetAccountsByCoinType(this.coinType).First().GetFirstUnusedReceivingAddress().ScriptPubKey;// Services.WalletService.GenerateAddress().ScriptPubKey;
                         var redeemTx = session.SolverClientSession.CreateRedeemTransaction(feeRate, redeemDestination);
@@ -147,7 +147,7 @@ namespace Breeze.TumbleBit.Client
                         var tumblerInformation = await this.BobClient.OpenChannelAsync(bobEscrowInformation);
                         session.PromiseClientSession = session.ClientChannelNegotiation.ReceiveTumblerEscrowedCoin(tumblerInformation);
                         //Tell to the block explorer we need to track that address (for checking if it is confirmed in payment phase)
-                        services.Track(session.PromiseClientSession.EscrowedCoin.ScriptPubKey);
+                        this.watchOnlyWalletManager.Watch(session.PromiseClientSession.EscrowedCoin.ScriptPubKey);
                         //Tracker.AddressCreated(cycle.Start, TransactionType.TumblerEscrow, PromiseClientSession.EscrowedCoin.ScriptPubKey, correlation);
                         //Tracker.TransactionCreated(cycle.Start, TransactionType.TumblerEscrow, PromiseClientSession.EscrowedCoin.Outpoint.Hash, correlation);
 
@@ -195,7 +195,7 @@ namespace Breeze.TumbleBit.Client
                             var offerRedeemAddress = this.OriginWallet.GetAccountsByCoinType(this.coinType).First().GetFirstUnusedReceivingAddress(); // Services.WalletService.GenerateAddress($"Cycle {cycle.Start} Tumbler Redeem").ScriptPubKey);
                             var offerRedeem = session.SolverClientSession.CreateOfferRedeemTransaction(feeRate, offerRedeemAddress.ScriptPubKey);
                             //May need to find solution in the fulfillment transaction                                                        
-                            services.Track(offerRedeem.PreviousScriptPubKey);
+                            this.watchOnlyWalletManager.Watch(offerRedeem.PreviousScriptPubKey);
                             //Tracker.AddressCreated(cycle.Start, TransactionType.ClientOfferRedeem, offerRedeemAddress.ScriptPubKey, correlation);
                             services.TrustedBroadcast(cycle.Start, TransactionType.ClientOfferRedeem, correlation, offerRedeem);
                             logger.LogInformation("Offer redeem " + offerRedeem.Transaction.GetHash() + " locked until " + offerRedeem.Transaction.LockTime.Height);

Breeze/src/Breeze.TumbleBit.Client/TumbleBitManager.cs

@@ -6,6 +6,7 @@ using NBitcoin;
 using NTumbleBit.ClassicTumbler;
 using Stratis.Bitcoin;
 using Stratis.Bitcoin.Wallet;
+using Stratis.Bitcoin.WatchOnlyWallet;
 
 namespace Breeze.TumbleBit.Client
 {
@@ -17,6 +18,7 @@ namespace Breeze.TumbleBit.Client
     {
         private ITumblerService tumblerService;
         private readonly IWalletManager walletManager;
+        private readonly IWatchOnlyWalletManager watchOnlyWalletManager;
         private readonly ILogger logger;
         private readonly Signals signals;
         private readonly ConcurrentChain chain;
@@ -26,15 +28,16 @@ namespace Breeze.TumbleBit.Client
      
         private ClassicTumblerParameters TumblerParameters { get; set; }
 
-        public TumbleBitManager(ILoggerFactory loggerFactory, IWalletManager walletManager, ConcurrentChain chain, Network network, Signals signals)
+        public TumbleBitManager(ILoggerFactory loggerFactory, IWalletManager walletManager, IWatchOnlyWalletManager watchOnlyWalletManager, ConcurrentChain chain, Network network, Signals signals)
         {
             this.walletManager = walletManager;
+            this.watchOnlyWalletManager = watchOnlyWalletManager;
             this.chain = chain;
             this.signals = signals;
             this.network = network;
             this.logger = loggerFactory.CreateLogger(this.GetType().FullName);
 
-            this.tumblingState = new TumblingState(loggerFactory, this.chain, this.walletManager, this.network);
+            this.tumblingState = new TumblingState(loggerFactory, this.chain, this.walletManager, this.watchOnlyWalletManager, this.network);
         }
 
         /// <inheritdoc />

Breeze/src/Breeze.TumbleBit.Client/TumblingState.cs

@@ -10,6 +10,7 @@ using NTumbleBit.ClassicTumbler;
 using NTumbleBit.PuzzlePromise;
 using NTumbleBit.PuzzleSolver;
 using Stratis.Bitcoin.Wallet;
+using Stratis.Bitcoin.WatchOnlyWallet;
 
 namespace Breeze.TumbleBit.Client
 {
@@ -20,6 +21,7 @@ namespace Breeze.TumbleBit.Client
         private readonly ILogger logger;
         private readonly ConcurrentChain chain;
         private readonly IWalletManager walletManager;
+        private readonly IWatchOnlyWalletManager watchOnlyWalletManager;
         private readonly CoinType coinType;
         
         [JsonProperty("tumblerParameters")]
@@ -60,11 +62,13 @@ namespace Breeze.TumbleBit.Client
         public TumblingState(ILoggerFactory loggerFactory, 
             ConcurrentChain chain,
             IWalletManager walletManager,
+            IWatchOnlyWalletManager  watchOnlyWalletManager,
             Network network)
         {
             this.logger = loggerFactory.CreateLogger(this.GetType().FullName);
             this.chain = chain;
             this.walletManager = walletManager;
+            this.watchOnlyWalletManager = watchOnlyWalletManager;
             this.coinType = (CoinType)network.Consensus.CoinType;
         }