[CHANGE] BackgroundServices

Manager.App/Services/System/BackgroundServiceManager.cs

@@ -0,0 +1,23 @@
+using Manager.App.Models.System;
+
+namespace Manager.App.Services.System;
+
+public class BackgroundServiceManager
+{
+    private readonly HashSet<ExtendedBackgroundService> _backgroundServices = [];
+
+    public void RegisterService(ExtendedBackgroundService service)
+    {
+        _backgroundServices.Add(service);
+    }
+
+    public ListResult<ExtendedBackgroundService> GetServices(string serviceName, int total = 20, int skip = 0)
+    {
+        var filtered = string.IsNullOrWhiteSpace(serviceName) ? _backgroundServices.ToArray() : _backgroundServices.Where(x => x.Name.Equals(serviceName, StringComparison.OrdinalIgnoreCase)).ToArray();
+
+        var results = filtered.OrderDescending()
+            .Skip(skip)
+            .Take(total);
+        return new ListResultReturn<ExtendedBackgroundService>(results.ToList(), filtered.Length);
+    }
+}