(GH-121) Refactoring implementation

- Added new interface to provide up to date Configuration
- Changed Rule registrations.  Use container, rather than reflection
- This will mean that each rule has to be registered with container

src/Chocolatey.Language.Server/DiagnosticsHandler.cs

@@ -18,20 +18,14 @@ public class DiagnosticsHandler
         private readonly BufferManager _bufferManager;
         private IList<INuspecRule> _rules = new List<INuspecRule>();
 
-        public DiagnosticsHandler(ILanguageServer router, BufferManager bufferManager)
+        private IConfigurationProvider _configurationProvider;
+
+        public DiagnosticsHandler(ILanguageServer router, BufferManager bufferManager, IEnumerable<INuSpecRule> rules, IConfigurationProvider configurationProvider)
         {
             _router = router;
             _bufferManager = bufferManager;
-
-            var typeLocator = new TypeLocator();
-            foreach (var nuspecRule in typeLocator.GetTypesThatInheritOrImplement<INuspecRule>().OrEmptyListIfNull())
-            {
-                var rule = Activator.CreateInstance(nuspecRule) as INuspecRule;
-                if (rule != null)
-                {
-                    _rules.Add(rule);
-                }
-            }
+            _rules = new List<INuSpecRule>(rules);
+            _configurationProvider = configurationProvider;
         }
 
         public void PublishDiagnostics(Uri uri, Buffer buffer)

src/Chocolatey.Language.Server/Handlers/ConfigurationHandler.cs

@@ -21,7 +21,7 @@ namespace Chocolatey.Language.Server.Handlers
   ///     Language Server message handler that tracks configuration.
   /// </summary>
   public sealed class ConfigurationHandler
-        : IDidChangeConfigurationSettingsHandler
+        : IDidChangeConfigurationSettingsHandler, IConfigurationProvider
     {
         /// <summary>
         ///     The JSON serialiser used to read settings from LSP notifications.

src/Chocolatey.Language.Server/IConfigurationProvider.cs

@@ -0,0 +1,7 @@
+namespace Chocolatey.Language.Server
+{
+    public interface IConfigurationProvider
+    {
+         Configuration Configuration { get; }
+    }
+}

src/Chocolatey.Language.Server/Program.cs

@@ -1,8 +1,11 @@
 using System;
+using System.Linq;
 using System.Threading.Tasks;
 using Chocolatey.Language.Server.Handlers;
+using Chocolatey.Language.Server.Validations;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
+using OmniSharp.Extensions.JsonRpc;
 using OmniSharp.Extensions.LanguageServer.Server;
 
 namespace Chocolatey.Language.Server
@@ -42,6 +45,10 @@ static void ConfigureServices(IServiceCollection services)
             services.AddSingleton<BufferManager>();
             services.AddSingleton<DiagnosticsHandler>();
             services.AddSingleton<Configuration>();
+            services.AddSingleton<INuSpecRule, UrlValidValidation>();
+            services.AddSingleton<INuSpecRule, DescriptionLengthValidation>();
+            services.AddSingleton<INuSpecRule, DoesNotContainTemplatedValues>();
+            services.AddTransient<IConfigurationProvider>(config => config.GetServices<IJsonRpcHandler>().OfType<ConfigurationHandler>().FirstOrDefault());
         }
     }
 }