implement auto port support for socket bridge communication

ElectronNET.API/App.cs

@@ -19,7 +19,7 @@ namespace ElectronNET.API
                 ContractResolver = new CamelCasePropertyNamesContractResolver()
             };
 
-            _socket = IO.Socket("http://localhost:3000");
+            _socket = IO.Socket("http://localhost:" + BridgeSettings.SocketPort);
             _socket.On(Socket.EVENT_CONNECT, () =>
             {
                 Console.WriteLine("Verbunden!");

ElectronNET.API/BridgeSettings.cs

@@ -0,0 +1,7 @@
+namespace ElectronNET.API
+{
+    public static class BridgeSettings
+    {
+        public static string SocketPort { get; set; }
+    }
+}

ElectronNET.API/ElectronNET.API.csproj

@@ -11,5 +11,11 @@
     <PackageReference Include="SocketIoClientDotNet" Version="1.0.3" />
   </ItemGroup>
 
+  <ItemGroup>
+    <Reference Include="Microsoft.AspNetCore.Hosting.Abstractions">
+      <HintPath>..\..\..\..\..\..\..\Program Files\dotnet\sdk\NuGetFallbackFolder\microsoft.aspnetcore.hosting.abstractions\2.0.0\lib\netstandard2.0\Microsoft.AspNetCore.Hosting.Abstractions.dll</HintPath>
+    </Reference>
+  </ItemGroup>
+
 
 </Project>

ElectronNET.API/WebHostBuilderExtensions.cs

@@ -0,0 +1,32 @@
+using Microsoft.AspNetCore.Hosting;
+using System;
+
+namespace ElectronNET.API
+{
+    public static class WebHostBuilderExtensions
+    {
+        public static IWebHostBuilder UseElectron(this IWebHostBuilder builder, string[] args)
+        {
+            foreach (string argument in args)
+            {
+                if (argument.ToUpper().Contains("ELECTRONPORT"))
+                {
+                    BridgeSettings.SocketPort = argument.ToUpper().Replace("/ELECTRONPORT=", "");
+                    Console.WriteLine("Use Electron Port: " + BridgeSettings.SocketPort);
+                }
+            }
+
+            if(IsElectronActive())
+            {
+                builder.UseContentRoot(AppDomain.CurrentDomain.BaseDirectory);
+            }
+
+            return builder;
+        }
+
+        private static bool IsElectronActive()
+        {
+            return !string.IsNullOrEmpty(BridgeSettings.SocketPort);
+        }
+    }
+}