feat(DirectorySearchQuery): Implementierung von DirectorySearchQueryHandler mit Eigenschaftsfilterung und Ergebnissammlung

- Aktualisierung von DirectorySearchQuery, um Eigenschaften zu akzeptieren und IEnumerable<ResultPropertyCollection> zurückzugeben
- Implementierung von DirectorySearchQueryHandler, um die Suche mit benutzerdefinierten Filtern, Bereichen und Eigenschaftsauswahl auszuführen
- Hinzufügen einer Logik, um nur angeforderte Eigenschaften zu laden, wenn diese angegeben sind
- Ersetzen von NotImplementedException durch die tatsächliche DirectorySearcher-Logik

src/DigitalData.ActiveDirectory/DirectorySearchQuery.cs

@@ -4,13 +4,14 @@ using System.DirectoryServices;
 
 namespace DigitalData.ActiveDirectory;
 
-public record DirectorySearchQuery(string? Filter = null, SearchScope Scope = SearchScope.Subtree, int SizeLimit = 5000) : IRequest
+public record DirectorySearchQuery(string? Filter = null, SearchScope Scope = SearchScope.Subtree, int SizeLimit = 5000, params string[] properties) 
+    : IRequest<IEnumerable<ResultPropertyCollection>>
 {
     public Action<DirectorySearcher>? Options { get; set; }
 }
 
 [System.Diagnostics.CodeAnalysis.SuppressMessage("Interoperability", "CA1416:Validate platform compatibility", Justification = "<Pending>")]
-public class DirectorySearchQueryHandler(IOptions<ActiveDirectoryOptions> options) : IRequestHandler<DirectorySearchQuery>
+public class DirectorySearchQueryHandler(IOptions<ActiveDirectoryOptions> options) : IRequestHandler<DirectorySearchQuery, IEnumerable<ResultPropertyCollection>>
 {
     
     public DirectoryEntry DirectoryEntry => new ()
@@ -20,8 +21,26 @@ public class DirectorySearchQueryHandler(IOptions<ActiveDirectoryOptions> option
         Password = options.Value.Password
     };
 
-    public Task Handle(DirectorySearchQuery request, CancellationToken cancellationToken)
+    public Task<IEnumerable<ResultPropertyCollection>> Handle(DirectorySearchQuery request, CancellationToken cancellationToken = default)
     {
-        throw new NotImplementedException();
+        return Task.Run(() =>
+        {
+            using var _dirEntry = DirectoryEntry;
+            using var searcher = new DirectorySearcher()
+            {
+                Filter = request.Filter,
+                SearchScope = request.Scope,
+                SizeLimit = request.SizeLimit,
+                SearchRoot = _dirEntry
+            };
+
+            request.Options?.Invoke(searcher);
+
+            if (request.properties.Length > 0)
+                searcher.PropertiesToLoad.Clear();
+
+            searcher.PropertiesToLoad.AddRange([.. request.properties.Where(p => p is not null)]);
+            return searcher.FindAll().Cast<SearchResult>().Select(r => r.Properties);
+        });
     }
 }