Rework image conversion command to separate into parts and move to Aaru.Core.

Aaru.Core/Image/Convert/Tape.cs

@@ -0,0 +1,42 @@
+using System;
+using Aaru.CommonTypes.Enums;
+using Aaru.CommonTypes.Interfaces;
+using Aaru.Localization;
+
+namespace Aaru.Core.Image;
+
+public partial class Convert
+{
+    ErrorNumber ValidateTapeImage(ITapeImage inputTape, IWritableTapeImage outputTape)
+    {
+        // Validates tape image format compatibility
+        // Checks if input is tape-based but output format doesn't support tape images
+        // Returns error if unsupported media type combination detected
+
+        if(inputTape?.IsTape != true || outputTape is not null) return ErrorNumber.NoError;
+
+        StoppingErrorMessage?.Invoke(UI.Input_format_contains_a_tape_image_and_is_not_supported_by_output_format);
+
+        return ErrorNumber.UnsupportedMedia;
+    }
+
+    ErrorNumber SetupTapeImage(ITapeImage inputTape, IWritableTapeImage outputTape)
+    {
+        // Configures output format for tape image handling
+        // Calls SetTape() on output to initialize tape mode if both input and output support tapes
+        // Returns error if tape mode initialization fails
+
+        if(inputTape?.IsTape != true || outputTape == null) return ErrorNumber.NoError;
+
+        bool ret = outputTape.SetTape();
+
+        // Cannot set image to tape mode
+        if(ret) return ErrorNumber.NoError;
+
+        StoppingErrorMessage?.Invoke(UI.Error_setting_output_image_in_tape_mode +
+                                     Environment.NewLine                        +
+                                     _outputImage.ErrorMessage);
+
+        return ErrorNumber.WriteError;
+    }
+}