removed async methods, for some reason just results in null.. no exceptions anywhere :(

added protection to prevent reloading assemblies already in the domain.
corrected bug only identifying INotifierProviderFactory types.

RaceLapTimer/Interfaces/INotifierProviderFactory.cs

@@ -2,6 +2,6 @@
 {
     public interface INotifierProviderFactory
     {
-        INotifierProvider CreateProvider();
+        INotifierProvider GetProvider();
     }
 }

RaceLapTimer/Interfaces/ISystemControl.cs

@@ -0,0 +1,7 @@
+namespace Interfaces
+{
+    public interface ISystemControl
+    {
+        void Shutdown();
+    }
+}

RaceLapTimer/Interfaces/ISystemControlManager.cs

@@ -0,0 +1,10 @@
+using System.Collections.Generic;
+
+namespace Interfaces
+{
+    public interface ISystemControlManager
+    {
+        List<string> GetAvailableProviders();
+        void Shutdown();
+    }
+}

RaceLapTimer/Interfaces/ISystemControlProviderFactory.cs

@@ -0,0 +1,7 @@
+namespace Interfaces
+{
+    public interface ISystemControlProviderFactory
+    {
+        ISystemControl GetProvider();
+    }
+}

RaceLapTimer/Interfaces/ITransponderUtilities.cs

@@ -0,0 +1,7 @@
+namespace Interfaces
+{
+    public interface ITransponderUtilities
+    {
+        int GetLastScannedIdAsync();
+    }
+}

RaceLapTimer/Interfaces/ITransponderUtilityProviderFactory.cs

@@ -0,0 +1,7 @@
+namespace Interfaces
+{
+    public interface ITransponderUtilityProviderFactory
+    {
+        ITransponderUtilities GetProvider();
+    }
+}

RaceLapTimer/Interfaces/Interfaces.csproj

@@ -50,6 +50,11 @@
     <Compile Include="INotifierManager.cs" />
     <Compile Include="INotifierProvider.cs" />
     <Compile Include="INotifierProviderFactory.cs" />
+    <Compile Include="ISystemControl.cs" />
+    <Compile Include="ISystemControlManager.cs" />
+    <Compile Include="ISystemControlProviderFactory.cs" />
+    <Compile Include="ITransponderUtilities.cs" />
+    <Compile Include="ITransponderUtilityProviderFactory.cs" />
     <Compile Include="NotificationEventArgs.cs" />
     <Compile Include="Pilot.cs" />
     <Compile Include="ProviderDetails.cs" />

RaceLapTimer/IrDaemonNotifier/IrDaemonController.cs

@@ -0,0 +1,21 @@
+using System.Diagnostics;
+using Interfaces;
+
+namespace IrDaemonNotifier
+{
+    public class IrDaemonController:ISystemControl
+    {
+        public void Shutdown()
+        {
+            Debug.WriteLine("test");
+        }
+    }
+
+    public class IrDaemonControllerProviderFactory : ISystemControlProviderFactory
+    {
+        public ISystemControl GetProvider()
+        {
+            return new IrDaemonController();
+        }
+    }
+}

RaceLapTimer/IrDaemonNotifier/IrDaemonNotifier.csproj

@@ -40,6 +40,7 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="IrDaemonController.cs" />
     <Compile Include="IrDaemonNotifier.cs" />
     <Compile Include="IrDaemonNotifierProviderFactory.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />

RaceLapTimer/IrDaemonNotifier/IrDaemonNotifierProviderFactory.cs

@@ -15,7 +15,7 @@ namespace IrDaemonNotifier
         {
             _logger = logger;
         }
-        public INotifierProvider CreateProvider()
+        public INotifierProvider GetProvider()
         {
             return new IrDaemonNotifier(_logger);
         }

RaceLapTimer/RaceLapTimer/AuthenticationBootstrapper.cs

@@ -1,5 +1,4 @@
-using System.Diagnostics;
+using System.IO;
-using System.IO;
 using Interfaces;
 using Nancy;
 using Nancy.Authentication.Forms;
@@ -7,11 +6,10 @@ using Nancy.Bootstrapper;
 using Nancy.Bootstrappers.Ninject;
 using Nancy.Conventions;
 using Nancy.Diagnostics;
-using Nancy.TinyIoc;
 using Ninject;
-using RaceLapTimer.ApiControllers;
 using RaceLapTimer.Extensions;
 using RaceLapTimer.Extensions.Notifications;
+using RaceLapTimer.Extensions.SystemControl;
 
 namespace RaceLapTimer
 {
@@ -39,10 +37,10 @@ namespace RaceLapTimer
             container.Load(cfgFilePath);
 
             container.Bind<INotifierManager>().To<NotificationManager>().InSingletonScope();
+            container.Bind<ISystemControlManager>().To<SystemControlManager>().InSingletonScope();
 
-
+            var sM = container.Get<ISystemControlManager>();
-            //var nM = container.Get<INotifierManager>();
+            sM.Shutdown();
-            //nM.NotifyRaceStarted(new NotificationEventArgs());
         }
 
         protected override void ConfigureRequestContainer(IKernel container, NancyContext context)

RaceLapTimer/RaceLapTimer/Extensions/ContainerHelper.cs

@@ -3,11 +3,11 @@ using System.Collections.Generic;
 using Interfaces;
 using Ninject;
 
-namespace RaceLapTimer.Extensions.Notifications
+namespace RaceLapTimer.Extensions
 {
     class ContainerHelper : IContainerHelper
     {
-        private IKernel _container;
+        private readonly IKernel _container;
         public ContainerHelper(IKernel container)
         {
             _container = container;

RaceLapTimer/RaceLapTimer/Extensions/Notifications/NotificationManager.cs

@@ -1,9 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
-using System.IO;
 using System.Linq;
-using System.Reflection;
 using System.Threading.Tasks;
 using Interfaces;
 
@@ -18,13 +16,13 @@ namespace RaceLapTimer.Extensions.Notifications
             RegisterProviders(locator);
         }
 
-        private async void RegisterProviders(IPluginLocator locator)
+        private void RegisterProviders(IPluginLocator locator)
         {
-            var providerFactories = await locator.LocateAsync<INotifierProviderFactory>();
+            var providerFactories = locator.Locate<INotifierProviderFactory>();
             _providers = new List<INotifierProvider>();
             foreach (var factory in providerFactories)
             {
-                _providers.Add(factory.CreateProvider());
+                _providers.Add(factory.GetProvider());
             }
         }
 

RaceLapTimer/RaceLapTimer/Extensions/PluginLocator.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.Reflection;
@@ -13,11 +14,13 @@ namespace RaceLapTimer.Extensions
     {
         private readonly IContainerHelper _helper;
         private readonly IPluginPathProvider _pluginPath;
+        private readonly ILoggerService _logger;
 
-        public PluginLocator(IContainerHelper helper, IPluginPathProvider pluginPath)
+        public PluginLocator(IContainerHelper helper, IPluginPathProvider pluginPath, ILoggerService logger)
         {
             _helper = helper;
             _pluginPath = pluginPath;
+            _logger = logger;
         }
 
         public async Task<List<T>> LocateAsync<T>()
@@ -26,6 +29,8 @@ namespace RaceLapTimer.Extensions
         }
 
         public List<T> Locate<T>()
+        {
+            try
             {
                 if (!Directory.Exists(_pluginPath.GetPluginPath)) return new List<T>();
                 var files = Directory.GetFiles(_pluginPath.GetPluginPath);
@@ -38,7 +43,7 @@ namespace RaceLapTimer.Extensions
 
                     var assembly = Assembly.ReflectionOnlyLoadFrom(file);
                     var pluginTypes = (from t in assembly.GetExportedTypes()
-                                   where t.GetInterfaces().Any(x => x.Name == nameof(INotifierProviderFactory))
+                                       where t.GetInterfaces().Any(x => x.Name == typeof(T).Name)
                                        select t).ToList();
                     if (pluginTypes.Any())
                     {
@@ -46,7 +51,7 @@ namespace RaceLapTimer.Extensions
                         {
                             FilePath = file,
                             PluginType = pluginTypes.First(),
-                        TypeToBindTo = typeof(INotifierProviderFactory),
+                            TypeToBindTo = typeof(T),
                             UniqueName = Path.GetFileNameWithoutExtension(file)
                         });
                     }
@@ -54,8 +59,10 @@ namespace RaceLapTimer.Extensions
 
                 foreach (var plugin in discoveryList)
                 {
-                //load into the appDomain..
+                    var assy = AssemblyIsLoaded(plugin.FilePath)
-                var assy = Assembly.LoadFrom(plugin.FilePath);
+                        ? GetAssemblyFromAppDomain(plugin.FilePath)
+                        : Assembly.LoadFrom(plugin.FilePath);
+                    
                     //register our type
                     var pluginTypes =
                     (from t in assy.GetExportedTypes()
@@ -70,6 +77,25 @@ namespace RaceLapTimer.Extensions
 
                 return _helper.GetAll<T>().ToList();
             }
+            catch (Exception ex)
+            {
+                _logger.Error(ex);
+                return new List<T>();
+            }
+        }
+
+        private Assembly GetAssemblyFromAppDomain(string pluginFilePath)
+        {
+            var name = Path.GetFileName(pluginFilePath);
+            return AppDomain.CurrentDomain.GetAssemblies().First(x => x.ManifestModule.Name == name);
+        }
+
+        private bool AssemblyIsLoaded(string pluginFilePath)
+        {
+            var name = Path.GetFileName(pluginFilePath);
+            var d = AppDomain.CurrentDomain.GetAssemblies().Where(x => x.ManifestModule.Name == name);
+            return d.Any();
+        }
 
         private bool IsAssembly(string extension)
         {
@@ -78,11 +104,7 @@ namespace RaceLapTimer.Extensions
                 "dll", "exe"
             };
             var ext = extension.Remove(0, 1);
-            if (validAssemblyExts.Contains(ext))
+            return validAssemblyExts.Contains(ext);
-            {
-                return true;
-            }
-            return false;
         }
 
         private class DiscoveredPlugin

RaceLapTimer/RaceLapTimer/Extensions/SystemControl/SystemControlManager.cs

@@ -0,0 +1,51 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Threading.Tasks;
+using Interfaces;
+
+namespace RaceLapTimer.Extensions.SystemControl
+{
+    class SystemControlManager : ISystemControlManager
+    {
+        private List<ISystemControl> _providers;
+        private readonly ILoggerService _logger;
+
+        public SystemControlManager(IPluginLocator locator, ILoggerService logger)
+        {
+            RegisterProviders(locator);
+            _logger = logger;
+        }
+
+        private void RegisterProviders(IPluginLocator locator)
+        {
+            try
+            {
+                var providerFactories = locator.Locate<ISystemControlProviderFactory>();
+                _providers = new List<ISystemControl>();
+                foreach (var factory in providerFactories)
+                {
+                    _providers.Add(factory.GetProvider());
+                }
+            }
+            catch (Exception ex)
+            {
+                _logger.Error(ex);
+            }
+        }
+
+        public List<string> GetAvailableProviders()
+        {
+            return _providers.Select(x=>x.GetType().ToString()).ToList();
+        }
+
+        public void Shutdown()
+        {
+            foreach (var provider in _providers)
+            {
+                Task.Factory.StartNew(() => provider.Shutdown());
+            }
+        }
+    }
+}

RaceLapTimer/RaceLapTimer/RaceLapTimer.csproj

@@ -115,6 +115,7 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Extensions\PluginLocator.cs" />
+    <Compile Include="Extensions\SystemControl\SystemControlManager.cs" />
     <Compile Include="IDbProvider.cs" />
     <Compile Include="ApiControllers\LapTrackApiModule.cs" />
     <Compile Include="ApiControllers\MonitorApiModule.cs" />
@@ -126,7 +127,7 @@
     <Compile Include="TestProvider.cs" />
     <Compile Include="AuthenticationBootstrapper.cs" />
     <Compile Include="ConfigFilePathProvider.cs" />
-    <Compile Include="Extensions\Notifications\ContainerHelper.cs" />
+    <Compile Include="Extensions\ContainerHelper.cs" />
     <Compile Include="Extensions\Notifications\NotificationManager.cs" />
     <Compile Include="Modules\HistoryModule.cs" />
     <Compile Include="ApiControllers\InfoApiModule.cs" />

RaceLapTimer/UdpNotifier/UdpNotifierProviderFactory.cs

@@ -15,7 +15,7 @@ namespace UdpNotifier
             _logger = logger;
         }
 
-        public INotifierProvider CreateProvider()
+        public INotifierProvider GetProvider()
         {
             return new UdpNotifierProvider(_logger);
         }