Adding contract to asset to use in listener

Hackney.Shared.Asset/Domain/Asset.cs

@@ -21,6 +21,7 @@ public class Asset
         public int? VersionNumber { get; set; }
         public List<PatchEntity?> Patches { get; set; }
 
+        public AssetContract AssetContract { get; set; }
         public static Asset Create(string id,
             string assetId,
             string assetType,

Hackney.Shared.Asset/Domain/AssetContract.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Hackney.Shared.Asset.Domain
+{
+    public class AssetContract
+    {
+        public string Id { get; set; }
+        public string TargetId { get; set; }
+        public string TargetType { get; set; }
+        public IEnumerable<Charges> Charges { get; set; }
+    }
+}

Hackney.Shared.Asset/Domain/Charges.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Hackney.Shared.Asset.Domain
+{
+    public class Charges
+    {
+        public string Id { get; set; }
+        public string Type { get; set; }
+        public string SubType { get; set; }
+        public Frequency Frequency { get; set; }
+        public decimal? Amount { get; set; }
+    }
+}

Hackney.Shared.Asset/Domain/Enums.cs

@@ -35,5 +35,14 @@ public enum AssetType
         Maisonette,
         [EnumMember(Value = "New Build")]
         NewBuild
+    }
+
+    [JsonConverter(typeof(JsonStringEnumConverter))]
+    public enum Frequency
+    {
+        Daily,
+        Weekly,
+        Monthly,
+        Yearly
     }
 }

Hackney.Shared.Asset/Factories/EntityFactory.cs

@@ -28,6 +28,7 @@ public static AssetDomain ToDomain(this AssetDb databaseEntity)
                 AssetAddress = databaseEntity.AssetAddress,
                 AssetManagement = databaseEntity.AssetManagement,
                 AssetCharacteristics = databaseEntity.AssetCharacteristics,
+                AssetContract = databaseEntity.AssetContract,
                 Tenure = databaseEntity.Tenure.ToDomain(),
                 VersionNumber = databaseEntity.VersionNumber,
                 Patches = databaseEntity.Patches?.ToDomain()
@@ -69,6 +70,7 @@ public static AssetDb ToDatabase(this AssetDomain domain)
                 AssetAddress = domain.AssetAddress,
                 AssetManagement = domain.AssetManagement,
                 AssetCharacteristics = domain.AssetCharacteristics,
+                AssetContract = domain.AssetContract,
                 Tenure = domain.Tenure.ToDatabase(),
                 VersionNumber = domain.VersionNumber,
                 Patches = domain.Patches?.ToDatabase()

Hackney.Shared.Asset/Infrastructure/AssetDb.cs

@@ -47,6 +47,9 @@ public class AssetDb
         [DynamoDBProperty(Converter = typeof(DynamoDbObjectListConverter<PatchesDb>))]
         public List<PatchesDb?> Patches { get; set; }
 
+        [DynamoDBProperty(Converter = typeof(DynamoDbObjectConverter<AssetContract>))]
+        public AssetContract AssetContract { get; set; }
+
         [DynamoDBVersion]
         public int? VersionNumber { get; set; }
     }