feat: create window client app

Client/Application.cs

@@ -0,0 +1,74 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Threading.Tasks;
+using Client.Domain.Factories;
+using Client.Domain.Parsers;
+using Client.Domain.Transports;
+
+namespace Client
+{
+    public class Application
+    {
+        [DllImport("kernel32.dll", EntryPoint = "LoadLibrary", SetLastError = true)]
+        static extern int LoadLibrary([MarshalAs(UnmanagedType.LPStr)] string lpLibFileName);
+
+        private readonly TransportInterface transport;
+        private readonly MessageParserInterface messageParser;
+        private readonly EntityHandlerFactoryInterface entityHandlerFactory;
+        private readonly string dllName;
+
+        public Application(TransportInterface transport, MessageParserInterface messageParser, EntityHandlerFactoryInterface entityHandlerFactory, string dllName)
+        {
+            this.transport = transport;
+            this.messageParser = messageParser;
+            this.entityHandlerFactory = entityHandlerFactory;
+            this.dllName = dllName;
+        }
+
+        public async void StartAsync()
+        {
+            int hDll = LoadLibrary(dllName);
+
+            if (hDll == 0)
+            {
+                throw new Exception("Unable to load library " + dllName + ": " + Marshal.GetLastWin32Error().ToString());
+            }
+
+            Debug.WriteLine(dllName + " loaded\n");
+            transport.Message += OnMessage;
+
+            while (true)
+            {
+                await transport.ConnectAsync();
+                await transport.StartReceiveAsync();
+            }
+        }
+
+        private void OnMessage(string args)
+        {
+            try
+            {
+                var message = messageParser.Parse(args);
+                Debug.WriteLine(message);
+
+                try
+                {
+                    var handler = entityHandlerFactory.GetHandler(message.Type);
+                    handler.Update(message.Operation, message.Content);
+                }
+                catch (Exception ex)
+                {
+                    Debug.WriteLine("Exception: " + ex.Message);
+                }
+            }
+            catch (Domain.Exception.ParserException)
+            {
+                Debug.WriteLine("Unable to parse message: " + args);
+            }
+        }
+    }
+}