feat: create window client app

Client/Domain/Service/EntityHandler.cs

@@ -0,0 +1,52 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Client.Domain.DTO;
+using Client.Domain.Entities;
+using Client.Domain.Enums;
+using Client.Domain.Factories;
+
+namespace Client.Domain.Service
+{
+    public class EntityHandler<T> : HandlerInterface where T : EntityInterface
+    {
+        public void Update(MessageOperationEnum operation, string content)
+        {
+            var entity = factory.Create(content);
+            if (operation == MessageOperationEnum.Create)
+            {
+                if (entity == null)
+                {
+                    throw new ArgumentNullException(nameof(entity));
+                }
+                entities[entity.Id] = entity;
+
+
+            }
+            else if (operation == MessageOperationEnum.Update)
+            {
+                if (entity != null && entities.ContainsKey(entity.Id))
+                {
+                    factory.Update(entities[entity.Id], content);
+                }
+            }
+            else if (operation == MessageOperationEnum.Delete)
+            {
+                if (entity != null)
+                {
+                    entities.Remove(entity.Id);
+                }
+            }
+        }
+
+        public EntityHandler(EntityFactoryInterface<T> factory)
+        {
+            this.factory = factory;
+        }
+
+        private readonly EntityFactoryInterface<T> factory;
+        private Dictionary<uint, T> entities = new Dictionary<uint, T>();
+    }
+}