fix: 🐛 Fixed backpack to return empty item handler when something tri…

…es to get item handler capability from it and the backpack doesn't have a storage uuid assigned yet. This prevents creation of unnecessary storage ids and records in cases where the backpack stack may be a copy and thus newly created storage id won't be retained on it.

gradle.properties

@@ -13,7 +13,7 @@ loader_version_range=[4,)
 mod_id=sophisticatedbackpacks
 mod_name=Sophisticated Backpacks
 mod_license=GNU General Public License v3.0
-mod_version=3.22.2
+mod_version=3.22.3
 mod_group_id=sophisticatedbackpacks
 mod_authors=P3pp3rF1y, Ridanisaurus
 mod_description=Fancy and functional backpacks.

src/main/java/net/p3pp3rf1y/sophisticatedbackpacks/backpack/wrapper/BackpackWrapper.java

@@ -12,12 +12,10 @@
 import net.minecraft.world.item.ItemStack;
 import net.minecraft.world.item.component.ItemContainerContents;
 import net.minecraft.world.level.Level;
-import net.neoforged.fml.util.thread.SidedThreadGroups;
 import net.neoforged.neoforge.energy.IEnergyStorage;
 import net.neoforged.neoforge.fluids.FluidStack;
 import net.neoforged.neoforge.fluids.capability.IFluidHandler;
 import net.neoforged.neoforge.fluids.capability.IFluidHandlerItem;
-import net.neoforged.neoforge.server.ServerLifecycleHooks;
 import net.p3pp3rf1y.sophisticatedbackpacks.SophisticatedBackpacks;
 import net.p3pp3rf1y.sophisticatedbackpacks.api.IEnergyStorageUpgradeWrapper;
 import net.p3pp3rf1y.sophisticatedbackpacks.api.IFluidHandlerWrapperUpgrade;
@@ -174,9 +172,6 @@ private void markBackpackContentsDirty() {
 	public ITrackedContentsItemHandler getInventoryForInputOutput() {
 		if (inventoryIOHandler == null) {
 			inventoryIOHandler = new InventoryIOHandler(this);
-			if (Thread.currentThread().getThreadGroup() == SidedThreadGroups.SERVER && ServerLifecycleHooks.getCurrentServer() != null) {
-				fillWithLoot(ServerLifecycleHooks.getCurrentServer().overworld(), BlockPos.ZERO);
-			}
 		}
 		return inventoryIOHandler.getFilteredItemHandler();
 	}

src/main/java/net/p3pp3rf1y/sophisticatedbackpacks/init/ModItems.java

@@ -35,6 +35,7 @@
 import net.neoforged.neoforge.capabilities.RegisterCapabilitiesEvent;
 import net.neoforged.neoforge.common.extensions.IMenuTypeExtension;
 import net.neoforged.neoforge.common.loot.IGlobalLootModifier;
+import net.neoforged.neoforge.items.wrapper.EmptyItemHandler;
 import net.neoforged.neoforge.registries.DeferredHolder;
 import net.neoforged.neoforge.registries.DeferredRegister;
 import net.neoforged.neoforge.registries.NeoForgeRegistries;
@@ -378,7 +379,10 @@ public static void registerCauldronInteractions() {
 	}
 
 	private static void registerCapabilities(RegisterCapabilitiesEvent event) {
-		event.registerItem(Capabilities.ItemHandler.ITEM, (stack, v) -> BackpackWrapper.fromStack(stack).getInventoryForInputOutput(),
+		event.registerItem(Capabilities.ItemHandler.ITEM, (stack, v) -> {
+					IBackpackWrapper backpackWrapper = BackpackWrapper.fromStack(stack);
+					return backpackWrapper.getContentsUuid().isEmpty() ? EmptyItemHandler.INSTANCE : backpackWrapper.getInventoryForInputOutput();
+				},
 				BACKPACK.get(), COPPER_BACKPACK.get(), IRON_BACKPACK.get(), GOLD_BACKPACK.get(), DIAMOND_BACKPACK.get(), NETHERITE_BACKPACK.get());
 		event.registerItem(Capabilities.FluidHandler.ITEM, (stack, v) -> {
 					if (Boolean.FALSE.equals(Config.SERVER.itemFluidHandlerEnabled.get())) {