Move CachedCoinView initialization from PowConsensusRuleEngine

src/Stratis.Bitcoin.Features.Consensus/CoinViews/CachedCoinView.cs

@@ -160,6 +160,30 @@ public CachedCoinView(Network network, ICheckpoints checkpoints, ICoindb coindb,
                 nodeStats.RegisterStats(this.AddBenchStats, StatsType.Benchmark, this.GetType().Name, 300);
         }
 
+        public void Initialize(ChainedHeader chainTip, ChainIndexer chainIndexer)
+        {
+            this.coindb.Initialize(chainTip);
+
+            HashHeightPair coinViewTip = this.coindb.GetTipHash();
+
+            while (true)
+            {
+                ChainedHeader pendingTip = chainTip.FindAncestorOrSelf(coinViewTip.Hash);
+
+                if (pendingTip != null)
+                    break;
+
+                if ((coinViewTip.Height % 100) == 0)
+                    this.logger.LogInformation("Rewinding coin view from '{0}' to {1}.", coinViewTip, chainTip);
+
+                // If the block store was initialized behind the coin view's tip, rewind it to on or before it's tip.
+                // The node will complete loading before connecting to peers so the chain will never know that a reorg happened.
+                coinViewTip = this.coindb.Rewind(new HashHeightPair(chainTip));
+            }
+
+            this.logger.LogInformation("Coin view initialized at '{0}'.", this.coindb.GetTipHash());
+        }
+
         public HashHeightPair GetTipHash()
         {
             if (this.blockHash == null)

src/Stratis.Bitcoin.Features.Consensus/CoinViews/CoinView.cs

@@ -10,6 +10,13 @@ namespace Stratis.Bitcoin.Features.Consensus.CoinViews
     /// </summary>
     public interface ICoinView
     {
+        /// <summary>
+        /// Initializes the coin view.
+        /// </summary>
+        /// <param name="chainTip">The chain tip.</param>
+        /// <param name="chainIndexer">The chain indexer.</param>
+        void Initialize(ChainedHeader chainTip, ChainIndexer chainIndexer);
+
         /// <summary>
         /// Retrieves the block hash of the current tip of the coinview.
         /// </summary>

src/Stratis.Bitcoin.Features.Consensus/CoinViews/InMemoryCoinView.cs

@@ -32,6 +32,12 @@ public InMemoryCoinView(HashHeightPair tipHash)
             this.tipHash = tipHash;
         }
 
+        /// <inheritdoc />
+        public void Initialize(ChainedHeader chainTip, ChainIndexer chainIndexer)
+        {
+            throw new NotImplementedException();
+        }
+
         /// <inheritdoc />
         public HashHeightPair GetTipHash()
         {

src/Stratis.Bitcoin.Features.Consensus/Rules/PowConsensusRuleEngine.cs

@@ -67,27 +67,7 @@ public override void Initialize(ChainedHeader chainTip)
         {
             base.Initialize(chainTip);
 
-            var coinDatabase = ((CachedCoinView)this.UtxoSet).ICoindb;
-            coinDatabase.Initialize(chainTip);
-
-            HashHeightPair coinViewTip = coinDatabase.GetTipHash();
-
-            while (true)
-            {
-                ChainedHeader pendingTip = chainTip.FindAncestorOrSelf(coinViewTip.Hash);
-
-                if (pendingTip != null)
-                    break;
-
-                if ((coinViewTip.Height % 100) == 0)
-                    this.logger.LogInformation("Rewinding coin view from '{0}' to {1}.", coinViewTip, chainTip);
-
-                // If the block store was initialized behind the coin view's tip, rewind it to on or before it's tip.
-                // The node will complete loading before connecting to peers so the chain will never know that a reorg happened.
-                coinViewTip = coinDatabase.Rewind(new HashHeightPair(chainTip));
-            }
-
-            this.logger.LogInformation("Coin view initialized at '{0}'.", coinDatabase.GetTipHash());
+            this.UtxoSet.Initialize(chainTip, this.ChainIndexer);
         }
 
         public override async Task<ValidationContext> FullValidationAsync(ChainedHeader header, Block block)

src/Stratis.Bitcoin.Features.MemoryPool/MemPoolCoinView.cs

@@ -49,6 +49,11 @@ public MempoolCoinView(Network network, ICoinView inner, ITxMempool memPool, Sch
             this.Set = new UnspentOutputSet();
         }
 
+        public void Initialize(ChainedHeader chainTip, ChainIndexer chainIndexer)
+        {
+            throw new NotImplementedException();
+        }
+
         /// <summary>
         /// Gets the unspent transaction output set.
         /// </summary>

src/Stratis.Bitcoin.Tests/Consensus/TestInMemoryCoinView.cs

@@ -33,6 +33,12 @@ public TestInMemoryCoinView(HashHeightPair tipHash)
             this.tipHash = tipHash;
         }
 
+        /// <inheritdoc />
+        public void Initialize(ChainedHeader chainTip, ChainIndexer chainIndexer)
+        {
+            throw new NotImplementedException();
+        }
+
         /// <inheritdoc />
         public HashHeightPair GetTipHash()
         {