Refactoring of file filter (#681)

app/MindWork AI Studio/Chat/FileAttachment.cs

@@ -76,34 +76,28 @@ public record FileAttachment(FileAttachmentType Type, string FileName, string Fi
 
     /// <summary>
     /// Determines the file attachment type based on the file extension.
-    /// Uses centrally defined file type filters from <see cref="FileTypeFilter"/>.
+    /// Uses centrally defined file type filters from <see cref="FileTypes"/>.
     /// </summary>
     /// <param name="filePath">The file path to analyze.</param>
     /// <returns>The corresponding FileAttachmentType.</returns>
     private static FileAttachmentType DetermineFileType(string filePath)
     {
-        var extension = Path.GetExtension(filePath).TrimStart('.').ToLowerInvariant();
-
-        if (FileTypeFilter.Executables.FilterExtensions.Contains(extension))
+        // Check if it's an executable:
+        if (FileTypes.IsAllowedPath(filePath, FileTypes.EXECUTABLES))
             return FileAttachmentType.FORBIDDEN;
 
         // Check if it's an image file:
-        if (FileTypeFilter.AllImages.FilterExtensions.Contains(extension))
+        if (FileTypes.IsAllowedPath(filePath, FileTypes.IMAGE))
             return FileAttachmentType.IMAGE;
 
         // Check if it's an audio file:
-        if (FileTypeFilter.AllAudio.FilterExtensions.Contains(extension))
+        if (FileTypes.IsAllowedPath(filePath, FileTypes.AUDIO))
             return FileAttachmentType.AUDIO;
 
-        // Check if it's an allowed document file (PDF, Text, or Office):
-        if (FileTypeFilter.PDF.FilterExtensions.Contains(extension) ||
-            FileTypeFilter.Text.FilterExtensions.Contains(extension) ||
-            FileTypeFilter.AllOffice.FilterExtensions.Contains(extension) ||
-            FileTypeFilter.AllSourceCode.FilterExtensions.Contains(extension) ||
-            FileTypeFilter.IsAllowedSourceLikeFileName(filePath))
+        // Check if it's an allowed document file (PDF, Text, LaTeX, or Office):
+        if (FileTypes.IsAllowedPath(filePath, FileTypes.DOCUMENT))
             return FileAttachmentType.DOCUMENT;
 
-        // All other file types are forbidden:
         return FileAttachmentType.FORBIDDEN;
     }
 }