refactor(DirectorySearchQuery): Root-Datensatz definieren.

- SearchRoot-Eigenschaft hinzufügen
 - Zuordnungsprofil zwischen DirectorySearchQuery.Root und DirectoryEntry hinzufügen
 - Logik hinzufügen, um den Standardwert SearcdhRoot zu verwenden, wenn DirectorySearchQuery.Root null ist

src/DigitalData.ActiveDirectory/DirectorySearchQuery.cs

@@ -9,6 +9,10 @@ namespace DigitalData.ActiveDirectory;
 public record DirectorySearchQuery(string? Filter = null, SearchScope Scope = SearchScope.Subtree, int SizeLimit = 5000, params string[] Property) 
     : IRequest<IEnumerable<ResultPropertyCollection>>
 {
+    public record Root(string Path, string? Username = null, string? Password = null);
+
+    public Root? SearchRoot { get; set; }
+
     public Action<DirectorySearcher>? AfterInit { get; set; }
 }
 
@@ -25,13 +29,6 @@ public class DirectorySearchQueryHandler : IRequestHandler<DirectorySearchQuery,
         _mapper = mapper;
     }
 
-    public DirectoryEntry DirectoryEntry => new ()
-    {
-        Path = _options.Value.Path,
-        Username = _options.Value.Username,
-        Password = _options.Value.Password
-    };
-
     //TODO: add resolver to handle SearchRoot and AfterInit mapping
     public Task<IEnumerable<ResultPropertyCollection>> Handle(DirectorySearchQuery request, CancellationToken cancellationToken = default)
     {
@@ -39,7 +36,12 @@ public class DirectorySearchQueryHandler : IRequestHandler<DirectorySearchQuery,
         {
             using var searcher = _mapper.Map<DirectorySearcher>(request);
 
-            searcher.SearchRoot = DirectoryEntry;
+            searcher.SearchRoot ??= new()
+            {
+                Path = _options.Value.Path,
+                Username = _options.Value.Username,
+                Password = _options.Value.Password
+            };
 
             request.AfterInit?.Invoke(searcher);
 

src/DigitalData.ActiveDirectory/MappingProfile.cs

@@ -9,5 +9,6 @@ public class MappingProfile : Profile
     public MappingProfile()
     {
         CreateMap<DirectorySearchQuery, DirectorySearcher>();
+        CreateMap<DirectorySearchQuery.Root, DirectoryEntry>();
     }
 }