CopyCommand WIP

src/Core/FileTime.Core.Command/Helper.cs

@@ -0,0 +1,28 @@
+using FileTime.Core.Extensions;
+using FileTime.Core.Models;
+
+namespace FileTime.Core.Command;
+
+public static class Helper
+{
+    public static async Task<string?> GetNewNameAsync(IContainer resolvedTarget, string name, TransportMode transportMode)
+    {
+        var items = await resolvedTarget.Items.GetItemsAsync() ?? throw new NullReferenceException();
+        var newName = name;
+        var targetNameExists = resolvedTarget != null && items.Any(i => i.Path.GetName() == newName);
+        if (transportMode == TransportMode.Merge && resolvedTarget != null)
+        {
+            for (var i = 0; targetNameExists; i++)
+            {
+                newName = name + (i == 0 ? "_" : $"_{i}");
+                targetNameExists = resolvedTarget != null && items.Any(i => i.Path.GetName() == newName);
+            }
+        }
+        else if (transportMode == TransportMode.Skip && targetNameExists)
+        {
+            return null;
+        }
+
+        return newName;
+    }
+}