No longer allowing deletion of kit items -- only deactivation

app/models/item.rb

@@ -143,7 +143,7 @@ def is_in_kit?(kits = nil)
   end
 
   def can_delete?(inventory = nil, kits = nil)
-    can_deactivate_or_delete?(inventory, kits) && line_items.none? && !barcode_count&.positive? && !in_request?
+    can_deactivate_or_delete?(inventory, kits) && line_items.none? && !barcode_count&.positive? && !in_request? && kit.blank?
   end
 
   # @return [Boolean]

spec/models/item_spec.rb

@@ -481,4 +481,47 @@
   describe "versioning" do
     it { is_expected.to be_versioned }
   end
+
+  describe "kit items" do
+    context "with kit and regular items" do
+      let(:organization) { create(:organization) }
+      let(:kit) { create(:kit, organization: organization) }
+      let(:kit_item) { create(:item, kit: kit, organization: organization) }
+      let(:regular_item) { create(:item, organization: organization) }
+
+      describe "#can_delete?" do
+        it "returns false for kit items" do
+          expect(kit_item.can_delete?).to be false
+        end
+
+        it "returns true for regular items" do
+          expect(regular_item.can_delete?).to be true
+        end
+      end
+
+      describe "#deactivate!" do
+        it "deactivates both the kit item and its associated kit" do
+          kit_item.deactivate!
+          expect(kit_item.reload.active).to be false
+          expect(kit.reload.active).to be false
+        end
+
+        it "only deactivates regular items" do
+          regular_item.deactivate!
+          expect(regular_item.reload.active).to be false
+        end
+      end
+
+      describe "#validate_destroy" do
+        it "prevents deletion of kit items" do
+          expect { kit_item.destroy! }.to raise_error(ActiveRecord::RecordNotDestroyed)
+          expect(kit_item.errors[:base]).to include("Cannot delete item - it has already been used!")
+        end
+
+        it "allows deletion of regular items" do
+          expect { regular_item.destroy! }.not_to raise_error
+        end
+      end
+    end
+  end
 end