added c# backend

backendCs/Program.cs

@@ -0,0 +1,75 @@
+using System;
+using System.Net;
+using System.Text;
+using System.Threading;
+using MySql.Data.MySqlClient;
+using Newtonsoft.Json;
+using System.Collections.Generic;
+
+
+namespace Server
+{
+    class Program
+    {
+        static void Main()
+        {
+            // create server
+            HttpListener listener = new HttpListener();
+            // routes need to be added first
+            listener.Prefixes.Add("http://localhost:5000/api/getall/");
+            listener.Prefixes.Add("http://localhost:5000/api/gettopten/");
+            listener.Prefixes.Add("http://localhost:5000/api/getuser/");
+            listener.Prefixes.Add("http://localhost:5000/api/reset/");
+
+            // Start listening for incoming requests
+            listener.Start();
+            Console.WriteLine("Server is listening on http://localhost:5000/");
+            // god knows what that is
+            Thread listenerThread = new Thread(() =>
+            {
+                while (true)
+                {
+                    // wait for request
+                    HttpListenerContext context = listener.GetContext();
+                    // get response and request
+                    HttpListenerRequest request = context.Request;
+                    HttpListenerResponse response = context.Response;
+                    // mysql connection
+                    string connectionString = "server=127.0.0.1;uid=monty;pwd=some_pass;database=timelog";
+                    MySqlConnection conn = new MySqlConnection(connectionString);
+
+                    // url after localhost:5000/
+                    var uri = request.Url.AbsolutePath;
+
+                    switch (uri)
+                    {
+                        case "/api/reset":
+                            Reset.run(conn, request, response);
+                            break;
+                        case "/api/getall":
+                            Getall.run(conn, request, response);
+                            break;
+                        case "/api/gettopten":
+                            Gettopten.run(conn, request, response);
+                            break;
+                        case "/api/getuser":
+                            Getuser.run(conn, request, response);
+                            break;
+                        default:
+                            response.StatusCode = 404;
+                            string errorMessage = "Not Found";
+                            byte[] buffer = Encoding.UTF8.GetBytes(errorMessage);
+                            response.ContentType = "text/plain";
+                            response.ContentLength64 = buffer.Length;
+                            response.OutputStream.Write(buffer, 0, buffer.Length);
+                            break;
+                    }
+                    // Close the response
+                    response.OutputStream.Close();
+                }
+            });
+            // Start the listener thread
+            listenerThread.Start();
+        }
+    }
+}