From 4375a259dde3107f38c0ee99b447cb2019be0b18 Mon Sep 17 00:00:00 2001
From: EnZaXD <60033407+FlorianMichael@users.noreply.github.com>
Date: Mon, 29 Jan 2024 20:30:59 +0100
Subject: [PATCH 1/2] Fix 1.17.1 -> 1.18 mappings loading (#676)

Closes https://github.com/ViaVersion/ViaBackwards/issues/568
---
 .../protocol/protocol1_17_1to1_18/data/BackwardsMappings.java   | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_17_1to1_18/data/BackwardsMappings.java b/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_17_1to1_18/data/BackwardsMappings.java
index c8dcfadd..fdf65f30 100644
--- a/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_17_1to1_18/data/BackwardsMappings.java
+++ b/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_17_1to1_18/data/BackwardsMappings.java
@@ -33,6 +33,8 @@ public final class BackwardsMappings extends com.viaversion.viabackwards.api.dat
 
     @Override
     protected void loadExtras(final CompoundTag data) {
+        super.loadExtras(data);
+
         for (final Object2IntMap.Entry<String> entry : Protocol1_18To1_17_1.MAPPINGS.blockEntityIds().object2IntEntrySet()) {
             blockEntities.put(entry.getIntValue(), entry.getKey());
         }

From 170e5f224fe2ae1f351cdbb78af0b5556e55b255 Mon Sep 17 00:00:00 2001
From: Nassim Jahnke <nassim@njahnke.dev>
Date: Wed, 31 Jan 2024 22:58:11 +0100
Subject: [PATCH 2/2] Fix writable book handling in 1.16->1.15

---
 .../packets/BlockItemPackets1_16.java         |  4 +-
 .../BlockItemPacketRewriter1_20_3.java        | 42 -------------------
 2 files changed, 2 insertions(+), 44 deletions(-)

diff --git a/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_15_2to1_16/packets/BlockItemPackets1_16.java b/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_15_2to1_16/packets/BlockItemPackets1_16.java
index 908bb119..3b1ac5e7 100644
--- a/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_15_2to1_16/packets/BlockItemPackets1_16.java
+++ b/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_15_2to1_16/packets/BlockItemPackets1_16.java
@@ -308,8 +308,8 @@ public class BlockItemPackets1_16 extends com.viaversion.viabackwards.api.rewrit
             }
         }
 
-        // Handle hover event changes in book pages
-        if ((item.identifier() == 758 || item.identifier() == 759) && tag != null) {
+        // Handle hover event changes in written book pages
+        if (item.identifier() == 759 && tag != null) {
             Tag pagesTag = tag.get("pages");
             if (pagesTag instanceof ListTag) {
                 for (Tag page : ((ListTag) pagesTag)) {
diff --git a/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_2to1_20_3/rewriter/BlockItemPacketRewriter1_20_3.java b/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_2to1_20_3/rewriter/BlockItemPacketRewriter1_20_3.java
index fdda089c..5e3adbec 100644
--- a/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_2to1_20_3/rewriter/BlockItemPacketRewriter1_20_3.java
+++ b/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_2to1_20_3/rewriter/BlockItemPacketRewriter1_20_3.java
@@ -20,25 +20,16 @@ package com.viaversion.viabackwards.protocol.protocol1_20_2to1_20_3.rewriter;
 import com.viaversion.viabackwards.ViaBackwards;
 import com.viaversion.viabackwards.api.rewriters.ItemRewriter;
 import com.viaversion.viabackwards.protocol.protocol1_20_2to1_20_3.Protocol1_20_2To1_20_3;
-import com.viaversion.viaversion.api.Via;
 import com.viaversion.viaversion.api.data.ParticleMappings;
-import com.viaversion.viaversion.api.minecraft.item.Item;
 import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
 import com.viaversion.viaversion.api.type.Type;
 import com.viaversion.viaversion.api.type.types.chunk.ChunkType1_20_2;
 import com.viaversion.viaversion.api.type.types.version.Types1_20_3;
-import com.viaversion.viaversion.libs.gson.JsonElement;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.CompoundTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.ListTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.StringTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.Tag;
 import com.viaversion.viaversion.protocols.protocol1_20_2to1_20.packet.ServerboundPackets1_20_2;
 import com.viaversion.viaversion.protocols.protocol1_20_3to1_20_2.packet.ClientboundPackets1_20_3;
 import com.viaversion.viaversion.protocols.protocol1_20_3to1_20_2.rewriter.RecipeRewriter1_20_3;
 import com.viaversion.viaversion.rewriter.BlockRewriter;
-import com.viaversion.viaversion.util.ComponentUtil;
-import org.checkerframework.checker.nullness.qual.Nullable;
 
 public final class BlockItemPacketRewriter1_20_3 extends ItemRewriter<ClientboundPackets1_20_3, ServerboundPackets1_20_2, Protocol1_20_2To1_20_3> {
 
@@ -164,37 +155,4 @@ public final class BlockItemPacketRewriter1_20_3 extends ItemRewriter<Clientboun
             wrapper.read(Type.OPTIONAL_FLOAT); // Sound range
         });
     }
-
-    @Override
-    public @Nullable Item handleItemToClient(@Nullable final Item item) {
-        if (item == null) return null;
-
-        final CompoundTag tag = item.tag();
-        if (tag != null) {
-            updatePages(tag, "pages");
-            updatePages(tag, "filtered_pages");
-        }
-        return super.handleItemToClient(item);
-    }
-
-    private void updatePages(final CompoundTag tag, final String key) {
-        if (!(tag.get(key) instanceof ListTag)) {
-            return;
-        }
-
-        final ListTag pages = tag.get(key);
-        for (final Tag pageTag : pages) {
-            if (!(pageTag instanceof StringTag)) {
-                continue;
-            }
-
-            final StringTag stringTag = (StringTag) pageTag;
-            try {
-                final JsonElement updatedComponent = ComponentUtil.convertJson(stringTag.getValue(), ComponentUtil.SerializerVersion.V1_20_3, ComponentUtil.SerializerVersion.V1_19_4);
-                stringTag.setValue(updatedComponent.toString());
-            } catch (final Exception e) {
-                Via.getManager().debugHandler().error("Error converting book", e);
-            }
-        }
-    }
 }
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