♻️ Updated discovery resolver

DysonNetwork.Shared/Registry/RegistrarServiceEndpointFactory.cs

@@ -0,0 +1,38 @@
+using System.Diagnostics.CodeAnalysis;
+using dotnet_etcd;
+using Microsoft.Extensions.ServiceDiscovery;
+
+namespace DysonNetwork.Shared.Registry;
+
+/// <summary>
+/// A factory for creating <see cref="RegistrarServiceEndpointProvider"/> instances.
+/// </summary>
+public class RegistrarServiceEndpointFactory(EtcdClient etcdClient) : IServiceEndpointProviderFactory
+{
+    /// <summary>
+    /// Tries to create a provider for the given query.
+    /// </summary>
+    /// <remarks>
+    /// This factory creates a provider for any service name. It supports a convention
+    /// where the service name can include the service part, e.g., "my-service.http" or "my-service.grpc".
+    /// If the service part is not specified, it defaults to "http".
+    /// </remarks>
+    public bool TryCreateProvider(ServiceEndpointQuery query, [NotNullWhen(true)] out IServiceEndpointProvider? provider)
+    {
+        var serviceName = query.ServiceName;
+        var servicePart = "grpc"; // Default to "grpc"
+
+        var lastDot = serviceName.LastIndexOf('.');
+        if (lastDot > 0 && lastDot < serviceName.Length - 1)
+        {
+            var part = serviceName[(lastDot + 1)..];
+            // You might want to have a list of known parts.
+            // For now, we assume any suffix after a dot is a service part.
+            servicePart = part;
+            serviceName = serviceName[..lastDot];
+        }
+
+        provider = new RegistrarServiceEndpointProvider(serviceName, servicePart, etcdClient);
+        return true;
+    }
+}