From f755ba66d5da18860388ce1f8ce9b0bd9a714eda Mon Sep 17 00:00:00 2001
From: Kogepan229 <73163994+Kogepan229@users.noreply.github.com>
Date: Tue, 7 Oct 2025 01:23:17 +0900
Subject: [PATCH] Add Memory Card support to Level Maintainer (#327)

Co-authored-by: Martin Robertz <dream-master@gmx.net>
---
 .../common/tile/TileLevelMaintainer.java      | 52 ++++++++++++++++---
 1 file changed, 44 insertions(+), 8 deletions(-)

diff --git a/src/main/java/com/glodblock/github/common/tile/TileLevelMaintainer.java b/src/main/java/com/glodblock/github/common/tile/TileLevelMaintainer.java
index eb8ae12c..3d275b9b 100644
--- a/src/main/java/com/glodblock/github/common/tile/TileLevelMaintainer.java
+++ b/src/main/java/com/glodblock/github/common/tile/TileLevelMaintainer.java
@@ -59,6 +59,7 @@ import appeng.tile.events.TileEventType;
 import appeng.tile.grid.AENetworkTile;
 import appeng.tile.inventory.IAEAppEngInventory;
 import appeng.tile.inventory.InvOperation;
+import appeng.util.SettingsFrom;
 import appeng.util.item.AEItemStack;
 import io.netty.buffer.ByteBuf;
 
@@ -101,10 +102,7 @@ public class TileLevelMaintainer extends AENetworkTile
     @Override
     public IAEItemStack injectCraftedItems(ICraftingLink link, IAEItemStack items, Actionable mode) {
         int idx = this.getRequestIndexByLink(link);
-        if (idx == -1) {
-            AELog.warn("Invalid crafting link: " + link);
-            return items;
-        }
+
         try {
             if (getProxy().isActive()) {
                 final IEnergyGrid energy = getProxy().getEnergy();
@@ -116,7 +114,9 @@ public class TileLevelMaintainer extends AENetworkTile
                                 .injectItems(ItemFluidDrop.getAeFluidStack(items), mode, source);
                         if (notInjectedItems != null) {
                             items.setStackSize(notInjectedItems.getStackSize());
-                            this.updateState(idx, LevelState.Export);
+                            if (idx != -1) {
+                                this.updateState(idx, LevelState.Export);
+                            }
 
                             return items;
                         } else {
@@ -438,7 +438,7 @@ public class TileLevelMaintainer extends AENetworkTile
         NBTTagList tagList = new NBTTagList();
         for (int i = 0; i < REQ_COUNT; i++) {
             if (this.requests[i] != null) {
-                tagList.appendTag(this.requests[i].writeToNBT());
+                tagList.appendTag(this.requests[i].writeToNBT(true));
             } else {
                 tagList.appendTag(new NBTTagCompound());
             }
@@ -552,6 +552,42 @@ public class TileLevelMaintainer extends AENetworkTile
         data.writeBoolean(isActive());
     }
 
+    @Override
+    public void uploadSettings(SettingsFrom from, NBTTagCompound compound) {
+        super.uploadSettings(from, compound);
+        NBTTagList tagList = compound.getTagList(NBT_REQUESTS, Constants.NBT.TAG_COMPOUND);
+        for (int i = 0; i < tagList.tagCount(); i++) {
+            NBTTagCompound tag = tagList.getCompoundTagAt(i);
+            if (tag == null || !tag.hasKey(NBT_STACK)) {
+                this.requests[i] = null;
+            } else {
+                try {
+                    this.requests[i] = new RequestInfo(tag, this);
+                    this.requests[i].state = LevelState.None;
+                } catch (Exception ignored) {
+                    this.requests[i] = null;
+                }
+            }
+        }
+        this.saveChanges();
+    }
+
+    @Override
+    public NBTTagCompound downloadSettings(SettingsFrom from) {
+        NBTTagCompound compound = super.downloadSettings(from);
+        compound = compound == null ? new NBTTagCompound() : compound;
+        NBTTagList tagList = new NBTTagList();
+        for (int i = 0; i < REQ_COUNT; i++) {
+            if (this.requests[i] != null) {
+                tagList.appendTag(this.requests[i].writeToNBT(false));
+            } else {
+                tagList.appendTag(new NBTTagCompound());
+            }
+        }
+        compound.setTag(NBT_REQUESTS, tagList);
+        return compound;
+    }
+
     @MENetworkEventSubscribe
     public void stateChange(final MENetworkPowerStatusChange p) {
         updatePowerState();
@@ -651,7 +687,7 @@ public class TileLevelMaintainer extends AENetworkTile
             }
         }
 
-        public NBTTagCompound writeToNBT() {
+        public NBTTagCompound writeToNBT(boolean includeLink) {
             NBTTagCompound tag = new NBTTagCompound();
             NBTTagCompound stackTag = new NBTTagCompound();
             itemStack.writeToNBT(stackTag);
@@ -660,7 +696,7 @@ public class TileLevelMaintainer extends AENetworkTile
             tag.setLong(NBT_BATCH, batchSize);
             tag.setBoolean(NBT_ENABLE, enable);
             tag.setInteger(NBT_STATE, state.ordinal());
-            if (this.link != null) {
+            if (this.link != null && includeLink) {
                 NBTTagCompound linkTag = new NBTTagCompound();
                 this.link.writeToNBT(linkTag);
                 tag.setTag(NBT_LINK, linkTag);