From 73210948aa9140cb68abd4165cb6fd392ae3ff44 Mon Sep 17 00:00:00 2001
From: Tobias Klika <cee@live.at>
Date: Tue, 27 Oct 2020 00:24:49 +0100
Subject: [PATCH] ZeroController as base for frontend

---
 .../Controllers/DefaultRouteController.cs     |  8 ++--
 zero.Web/Controllers/ZeroController.cs        | 44 +++++++++++++++++++
 zero.Web/Routing/ZeroRoutesTransformer.cs     |  8 +++-
 3 files changed, 55 insertions(+), 5 deletions(-)
 create mode 100644 zero.Web/Controllers/ZeroController.cs

diff --git a/zero.Web/Controllers/DefaultRouteController.cs b/zero.Web/Controllers/DefaultRouteController.cs
index 4c5c498b..22943d87 100644
--- a/zero.Web/Controllers/DefaultRouteController.cs
+++ b/zero.Web/Controllers/DefaultRouteController.cs
@@ -1,18 +1,20 @@
 using Microsoft.AspNetCore.Mvc;
 using Newtonsoft.Json;
+using System;
+using System.Linq.Expressions;
+using zero.Core.Routing;
 
 namespace zero.Web.Controllers
 {
-  public class DefaultRouteController : Controller
+  public class DefaultRouteController : ZeroController<PageRoute>
   {
     public DefaultRouteController()
     {
-
     }
 
     public IActionResult Index()
     {
-      return Json(HttpContext.Request.RouteValues, new JsonSerializerSettings() { TypeNameHandling = TypeNameHandling.None });
+      return Json(new { Application, Route }, new JsonSerializerSettings() { TypeNameHandling = TypeNameHandling.None });
     }
   }
 }
diff --git a/zero.Web/Controllers/ZeroController.cs b/zero.Web/Controllers/ZeroController.cs
new file mode 100644
index 00000000..cefcef3b
--- /dev/null
+++ b/zero.Web/Controllers/ZeroController.cs
@@ -0,0 +1,44 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.Filters;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using zero.Core.Entities;
+using zero.Core.Routing;
+
+namespace zero.Web.Controllers
+{
+  public abstract class ZeroController : ZeroController<IResolvedRoute>
+  {
+    
+  }
+
+
+  public abstract class ZeroController<T> : Controller where T : IResolvedRoute
+  {
+    protected IApplication Application { get; set; }
+
+    protected virtual T Route { get; set; }
+
+
+    public override void OnActionExecuting(ActionExecutingContext filterContext)
+    {
+      if (filterContext.RouteData.Values.TryGetValue("zero.app", out object app))
+      {
+        Application = (IApplication)app;
+      }
+
+      if (filterContext.RouteData.Values.TryGetValue("zero.route", out object route))
+      {
+        if (!(route is T))
+        {
+          throw new InvalidCastException($"Could not cast IResolvedRoute to {typeof(T)}");
+        }
+        Route = (T)route;
+      }
+      base.OnActionExecuting(filterContext);
+    }
+  }
+}
diff --git a/zero.Web/Routing/ZeroRoutesTransformer.cs b/zero.Web/Routing/ZeroRoutesTransformer.cs
index 97eab1e6..d14e1825 100644
--- a/zero.Web/Routing/ZeroRoutesTransformer.cs
+++ b/zero.Web/Routing/ZeroRoutesTransformer.cs
@@ -2,6 +2,7 @@
 using Microsoft.AspNetCore.Mvc.Routing;
 using Microsoft.AspNetCore.Routing;
 using System.Threading.Tasks;
+using zero.Core.Api;
 using zero.Core.Routing;
 
 namespace zero.Web.Routing
@@ -9,10 +10,12 @@ namespace zero.Web.Routing
   public class ZeroRoutesTransformer : DynamicRouteValueTransformer
 	{
 		IRoutes Routes;
+		IApplicationContext Context;
 
-		public ZeroRoutesTransformer(IRoutes routes)
+		public ZeroRoutesTransformer(IRoutes routes, IApplicationContext context)
     {
 			Routes = routes;
+			Context = context;
     }
 
 
@@ -27,7 +30,8 @@ namespace zero.Web.Routing
 
 			RouteProviderEndpoint endpoint = Routes.GetEndpoint(route.Route);
 
-			values["route"] = route;
+			values["zero.app"] = await Context.Resolve(httpContext);
+			values["zero.route"] = route;
 			values["controller"] = endpoint.Controller;
 			values["action"] = endpoint.Action;