From 8e86685f5baee8c2ae95e86c9f220a96e20d08c7 Mon Sep 17 00:00:00 2001
From: theFox6 <the.Fox6@gmx.de>
Date: Fri, 20 Oct 2023 18:44:45 +0200
Subject: [PATCH] limit bulk upgrades to ten

---
 modules/item_transfer/api.lua | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/modules/item_transfer/api.lua b/modules/item_transfer/api.lua
index fbcf141..2e6e0ad 100644
--- a/modules/item_transfer/api.lua
+++ b/modules/item_transfer/api.lua
@@ -182,7 +182,14 @@ local io_device_base = {
 				else
 					max_allowed = math.min(stack:get_count(), 5)
 				end
-			elseif item ~= "microexpansion:upgrade_bulk" then
+			elseif item == "microexpansion:upgrade_bulk" then
+				local bulk_upgrades = me.count_upgrades(minetest.get_meta(pos):get_inventory()).bulk
+				if bulk_upgrades then
+					max_allowed = math.max(0, math.min(stack:get_count(), 10 - bulk_upgrades))
+				else
+					max_allowed = math.min(stack:get_count(), 10)
+				end
+			else
 				return 0
 			end
 		end