fix: add net9 again; wip router as ICollection

Author: CypherPotato

src/Routing/Router.SetRoute.cs

@@ -211,6 +211,20 @@ public void MapHead ( string path, RouteAction action )
     #endregion
 
     #region SetRoute methods
+
+    /// <summary>
+    /// Defines the specified collection of routes.
+    /// </summary>
+    /// <param name="routes">The routes to be defined.</param>
+#if NET9_0_OR_GREATER
+    public void SetRoutes ( params IEnumerable<Route> routes ) {
+#else
+    public void SetRoutes ( params Route [] routes ) {
+#endif
+        foreach (var route in routes)
+            SetRoute ( route );
+    }
+
     /// <summary>
     /// Defines an route with their method, path and action function.
     /// </summary>

src/Routing/Router.cs

@@ -7,6 +7,7 @@
 // File name:   Router.cs
 // Repository:  https://github.com/sisk-http/core
 
+using System.Collections;
 using System.Diagnostics.CodeAnalysis;
 using System.Net;
 using System.Runtime.CompilerServices;
@@ -26,10 +27,13 @@ public ActionHandler ( Type matchingType, Func<object, HttpResponse> handler ) {
 
 
 namespace Sisk.Core.Routing {
+
     /// <summary>
     /// Represents a collection of <see cref="Route"/> and main executor of actions in the <see cref="HttpServer"/>.
     /// </summary>
-    public sealed partial class Router {
+    [System.Diagnostics.CodeAnalysis.SuppressMessage ( "Naming", "CA1710:Identifiers should not have incorrect suffix",
+        Justification = "Breaking change. Not going forward on this one." )]
+    public sealed partial class Router : IReadOnlyCollection<Route> {
         internal sealed record RouterExecutionResult ( HttpResponse? Response, Route? Route, RouteMatchResult Result, Exception? Exception );
 
         internal HttpServer? parentServer;
@@ -139,6 +143,9 @@ public Router ( IEnumerable<Route> routes )
                 }
             } );
 
+        /// <inheritdoc/>
+        public int Count => ((IReadOnlyCollection<Route>) _routesList).Count;
+
         /// <summary>
         /// Gets all routes defined on this router instance.
         /// </summary>
@@ -269,6 +276,15 @@ void CheckForRouteCollisionsCore () {
         internal void FreeHttpServer () {
             parentServer = null;
         }
+
+        /// <inheritdoc/>
+        public IEnumerator<Route> GetEnumerator () {
+            return ((IEnumerable<Route>) _routesList).GetEnumerator ();
+        }
+
+        IEnumerator IEnumerable.GetEnumerator () {
+            return ((IEnumerable) _routesList).GetEnumerator ();
+        }
     }
 
     internal enum RouteMatchResult {

src/Sisk.Core.csproj

@@ -2,7 +2,7 @@
 
 	<!-- supported frameworks -->
 	<PropertyGroup>
-		<TargetFrameworks>net8.0</TargetFrameworks>
+		<TargetFrameworks>net8.0;net9.0</TargetFrameworks>
 		<RootNamespace>Sisk.Core</RootNamespace>
 		<Configurations>Debug;Release</Configurations>
 	</PropertyGroup>