Comparable WalletId

BTCPayServer/WalletId.cs

@@ -11,6 +11,8 @@ namespace BTCPayServer
         static readonly Regex _WalletStoreRegex = new Regex("^S-([a-zA-Z0-9]{30,60})-([a-zA-Z]{2,5})$");
         public static bool TryParse(string str, out WalletId walletId)
         {
+            if (str == null)
+                throw new ArgumentNullException(nameof(str));
             walletId = null;
             WalletId w = new WalletId();
             var match = _WalletStoreRegex.Match(str);
@@ -32,8 +34,37 @@ namespace BTCPayServer
         }
         public string StoreId { get; set; }
         public string CryptoCode { get; set; }
+
+
+        public override bool Equals(object obj)
+        {
+            WalletId item = obj as WalletId;
+            if (item == null)
+                return false;
+            return ToString().Equals(item.ToString(), StringComparison.InvariantCulture);
+        }
+        public static bool operator ==(WalletId a, WalletId b)
+        {
+            if (System.Object.ReferenceEquals(a, b))
+                return true;
+            if (((object)a == null) || ((object)b == null))
+                return false;
+            return a.ToString() == b.ToString();
+        }
+
+        public static bool operator !=(WalletId a, WalletId b)
+        {
+            return !(a == b);
+        }
+
+        public override int GetHashCode()
+        {
+            return ToString().GetHashCode(StringComparison.Ordinal);
+        }
         public override string ToString()
         {
+            if (StoreId == null || CryptoCode == null)
+                return "";
             return $"S-{StoreId}-{CryptoCode.ToUpperInvariant()}";
         }
     }