add method to generate a pdf file of the race session.

this may move to api, not sure.

RaceLapTimer/RaceLapTimer/Modules/HistoryModule.cs

@@ -1,5 +1,8 @@
 using System;
+using System.Dynamic;
+using System.IO;
 using Nancy;
+using Nancy.ViewEngines;
 
 namespace RaceLapTimer.Modules
 {
@@ -8,10 +11,36 @@ namespace RaceLapTimer.Modules
         public HistoryModule():base("/history")
         {
             Get[""] = args => GetHistoryHomePage();
+            Get["/pdf/{id}"] = args => GetPdfFile(args);
+        }
+
+        private dynamic GetPdfFile(dynamic args)
+        {
+            var raceSessionId = (int)args.Id;
+            ViewLocationContext viewLocationContext = new ViewLocationContext()
+            {
+                Context = Context,
+                ModuleName = base.GetType().Name,
+                ModulePath = ModulePath
+            };
+            var rendered = ViewFactory.RenderView("HistoryIndex.cshtml", null, viewLocationContext);
+            var content = "";
+            using (var ms = new MemoryStream())
+            {
+                rendered.Contents.Invoke(ms);
+                ms.Seek(0, SeekOrigin.Begin);
+                using (TextReader reader = new StreamReader(ms))
+                {
+                    content = reader.ReadToEnd();
+                }
+            };
+            throw new NotImplementedException();
         }
 
         private dynamic GetHistoryHomePage()
         {
+            
+            
             return View["HistoryIndex.cshtml"];
         }
     }