mvc

Author: Anton Wieslander

MVC/mvc_the_problem.linq

@@ -0,0 +1,11 @@
+<Query Kind="Program" />
+
+void Main()
+{
+	var uri = new Uri("http://localhost/home/index");
+	
+	uri.AbsolutePath.Split("/").Skip(1).Dump();
+	if(uri.AbsolutePath.StartsWith("/home/index")){
+		// execute some loginc
+	}
+}

MVC/mvc_the_solution.linq

@@ -0,0 +1,105 @@
+<Query Kind="Program">
+  <Namespace>System.Web</Namespace>
+</Query>
+
+void Main()
+{
+	var uri = new Uri("http://localhost/home/index?msg=Hello&num=5");
+
+	var container = new MvcContainer();
+	var result = container.Resolve(uri);
+	result.Dump();
+}
+
+public class MvcContainer {
+	
+	List<Type> controllerTypes = new List<Type>();
+	
+	public MvcContainer()
+	{
+		var controllerType = typeof(Controller);
+
+		controllerTypes = controllerType.Assembly.GetTypes()
+			.Where(type => !type.IsAbstract
+				&& controllerType.IsAssignableFrom(type))
+				.ToList();
+	}
+	
+	public object Resolve(Uri uri){
+		var controller = getController(uri);
+		var action = getAction(controller, uri);
+		var parameters = getParameters(action, uri);
+		return action.Invoke(controller, parameters);
+	}
+
+	private object[] getParameters(MethodInfo methodInfo, Uri uri)
+	{
+		var parameterInfos = methodInfo.GetParameters().ToList();
+		if(parameterInfos.Count == 0){
+			return null;
+		}
+		var results = new object[parameterInfos.Count];
+		
+		var query = HttpUtility.ParseQueryString(uri.Query);
+		
+		for(int i = 0; i < parameterInfos.Count; i++){
+			var info = parameterInfos[i];
+			var type = parameterInfos[i].ParameterType;
+			var value = query[info.Name];
+			if(type == typeof(String)){
+				results[i] = value;
+			}
+			else if (type == typeof(Int32))
+			{
+				results[i] = Int32.Parse(value);
+			}
+		}
+		
+		return results;
+	}
+
+	private MethodInfo getAction(Controller controller, Uri uri)
+	{
+		var action = uri.AbsolutePath.Split('/').Last();
+		
+		return controller.GetType().GetMethods()
+			.FirstOrDefault(x => x.Name.Equals(action, 
+				StringComparison.InvariantCultureIgnoreCase));
+	}
+
+	public Controller getController(Uri uri){
+		var controllerType = controllerTypes
+			.FirstOrDefault(x => uri.AbsolutePath
+				.StartsWith($"/{x.Name.Replace("Controller", "")}", 
+					StringComparison.InvariantCultureIgnoreCase));
+					
+		
+		return (Controller) Activator.CreateInstance(controllerType, null);
+	}
+
+}
+
+public abstract class Controller{}
+
+public class HomeController : Controller {
+
+	public string Index(int num, string msg)
+	{
+		return $"Hello World {msg} - {num}";
+	}
+
+	public string Test()
+	{
+		return "Hello Test";
+	}
+}
+
+public class TestController : Controller
+{
+
+	public string Index()
+	{
+		return "Test World";
+	}
+
+}

README.md

@@ -10,3 +10,4 @@ Full Playlist can be found [here](https://www.youtube.com/playlist?list=PLOeFnOV
 - [How to Use Async AWait Task](https://youtu.be/3GhKdDCvtKE)
 - [Semaphore](https://youtu.be/GKjM4AX8NME)
 - [Channels](https://youtu.be/E0Ld7ZgE4oY)
+- [MVC](https://youtu.be/u4O-b1BJg98)