✨ Shared auth scheme

DysonNetwork.Shared/Registry/RegistryHostedService.cs

@@ -0,0 +1,45 @@
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+
+namespace DysonNetwork.Shared.Registry;
+
+public class RegistryHostedService(
+    ServiceRegistry serviceRegistry,
+    IConfiguration configuration,
+    ILogger<RegistryHostedService> logger
+)
+    : IHostedService
+{
+    public async Task StartAsync(CancellationToken cancellationToken)
+    {
+        var serviceName = configuration["Service:Name"];
+        var serviceUrl = configuration["Service:Url"];
+
+        if (string.IsNullOrEmpty(serviceUrl) || string.IsNullOrEmpty(serviceName))
+        {
+            logger.LogWarning("Service URL or Service Name was not configured. Skipping Etcd registration.");
+            return;
+        }
+
+        logger.LogInformation("Registering service {ServiceName} at {ServiceUrl} with Etcd.", serviceName, serviceUrl);
+        try
+        {
+            await serviceRegistry.RegisterService(serviceName, serviceUrl);
+            logger.LogInformation("Service {ServiceName} registered successfully.", serviceName);
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, "Failed to register service {ServiceName} with Etcd.", serviceName);
+        }
+    }
+
+    public async Task StopAsync(CancellationToken cancellationToken)
+    {
+        // The lease will expire automatically if the service stops ungracefully.
+        var serviceName = configuration["Service:Name"];
+        if (serviceName is not null)
+            await serviceRegistry.UnregisterService(serviceName);
+        logger.LogInformation("Service registration hosted service is stopping.");
+    }
+}