Current work on migrating chat over to a registry

proxy/src/main/java/com/velocitypowered/proxy/connection/client/ConnectedPlayer.java

@@ -318,7 +318,7 @@ public class ConnectedPlayer implements MinecraftConnectionAssociation, Player,
     Component translated = translateMessage(message);
 
     connection.write(ChatBuilder.builder(this.getProtocolVersion())
-            .component(translated).forIdentity(identity).toClient());
+            .component(translated).forIdentity(identity).toClient(this));
   }
 
   @Override
@@ -332,7 +332,7 @@ public class ConnectedPlayer implements MinecraftConnectionAssociation, Player,
     connection.write(ChatBuilder.builder(this.getProtocolVersion())
             .component(translated).forIdentity(identity)
             .setType(type == MessageType.CHAT ? ChatBuilder.ChatType.CHAT : ChatBuilder.ChatType.SYSTEM)
-            .toClient());
+            .toClient(this));
   }
 
   @Override

proxy/src/main/java/com/velocitypowered/proxy/connection/registry/ChatData.java

@@ -30,80 +30,148 @@ import org.jetbrains.annotations.NotNull;
 import java.util.List;
 */
 
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableList;
+import com.velocitypowered.api.network.ProtocolVersion;
+import java.util.List;
+import net.kyori.adventure.nbt.CompoundBinaryTag;
+import net.kyori.adventure.nbt.ListBinaryTag;
+import net.kyori.adventure.text.format.NamedTextColor;
+import net.kyori.adventure.text.format.TextDecoration;
+import net.kyori.adventure.text.format.TextFormat;
+import net.kyori.adventure.translation.Translatable;
+import org.jetbrains.annotations.NotNull;
+
 // TODO Implement
 public class ChatData {
-    /*
-    private static final ListBinaryTag EMPTY_LIST_TAG = ListBinaryTag.empty();
 
+  private static final ListBinaryTag EMPTY_LIST_TAG = ListBinaryTag.empty();
+  private final String identifier;
+  private final int id;
 
-    private final String identifier;
-    private final int id;
-    private final Map<>
+  public ChatData(int id, String identifier) {
+    this.id = id;
+    this.identifier = identifier;
+  }
 
+  /**
+   * Decodes an entry in the registry.
+   *
+   * @param binaryTag the binary tag to decode.
+   * @param version   the version to decode for.
+   * @return The decoded ChatData
+   */
+  public static ChatData decodeRegistryEntry(CompoundBinaryTag binaryTag, ProtocolVersion version) {
+    final String registryIdentifier = binaryTag.getString("name");
+    final Integer id = binaryTag.getInt("id");
 
-    public static class Decoration implements Translatable {
+    CompoundBinaryTag element = binaryTag.getCompound("element");
+    ChatData decodedChatData = decodeElementCompound(element);
+    return decodedChatData.annotateWith(id, registryIdentifier);
+  }
 
-        private final List<String> parameters;
-        private final List<TextFormat> style;
-        private final String translationKey;
+  private ChatData annotateWith(Integer id, String registryIdentifier) {
+    return new ChatData(id, registryIdentifier);
+  }
 
-        public List<String> getParameters() {
-            return parameters;
-        }
+  private static ChatData decodeElementCompound(CompoundBinaryTag element) {
+    System.out.println(element);
+    final CompoundBinaryTag chatCompund = element.getCompound("chat");
 
-        public List<TextFormat> getStyle() {
-            return style;
-        }
-
-        @Override
-        public @NotNull String translationKey() {
-            return translationKey;
-        }
-
-        public Decoration(List<String> parameters, List<TextFormat> style, String translationKey) {
-            this.parameters = Preconditions.checkNotNull(parameters);
-            this.style = Preconditions.checkNotNull(style);
-            this.translationKey = Preconditions.checkNotNull(translationKey);
-            Preconditions.checkArgument(translationKey.length() > 0);
-        }
-
-        public static Decoration decodeRegistryEntry(CompoundBinaryTag toDecode) {
-            ImmutableList.Builder<String> parameters = ImmutableList.builder();
-            ListBinaryTag paramList = toDecode.getList("parameters", EMPTY_LIST_TAG);
-            if (paramList != EMPTY_LIST_TAG) {
-                paramList.forEach(binaryTag -> parameters.add(binaryTag.toString()));
-            }
-
-            ImmutableList.Builder<TextFormat> style = ImmutableList.builder();
-            CompoundBinaryTag styleList = toDecode.getCompound("style");
-            for (String key : styleList.keySet()) {
-                if ("color".equals(key)) {
-                    NamedTextColor color = Preconditions.checkNotNull(
-                            NamedTextColor.NAMES.value(styleList.getString(key)));
-                    style.add(color);
-                } else {
-                    // Key is a Style option instead
-                    TextDecoration deco = TextDecoration.NAMES.value(key);
-                    // This wouldn't be here if it wasn't applied, but here it goes anyway:
-                    byte val = styleList.getByte(key);
-                    if (val != 0) {
-                        style.add(deco);
-                    }
-                }
-            }
-
-            String translationKey = toDecode.getString("translation_key");
-
-            return new Decoration(parameters.build(), style.build(), translationKey);
-        }
-
-        public void encodeRegistryEntry(CompoundBinaryTag )
+    Decoration chatDecoration = null;
 
+    final CompoundBinaryTag chatDecorationCompound = chatCompund.getCompound("decoration");
+    if (chatDecorationCompound != CompoundBinaryTag.empty()) {
+      chatDecoration = Decoration.decodeRegistryEntry(chatDecorationCompound);
     }
 
-    public static enum Priority {
-        SYSTEM,
-        CHAT
+    return new ChatData(-1, "invalid");
+  }
+
+  public String getIdentifier() {
+    return identifier;
+  }
+
+  public int getId() {
+    return id;
+  }
+
+
+
+
+  public static class Decoration implements Translatable {
+
+    private final List<String> parameters;
+    private final List<TextFormat> style;
+    private final String translationKey;
+
+    public List<String> getParameters() {
+      return parameters;
     }
-*/
+
+    public List<TextFormat> getStyle() {
+      return style;
+    }
+
+    @Override
+    public @NotNull String translationKey() {
+      return translationKey;
+    }
+
+    /**
+     * Creates a Decoration with the associated data.
+     * @param parameters chat params
+     * @param style chat style
+     * @param translationKey translation key
+     */
+    public Decoration(List<String> parameters, List<TextFormat> style, String translationKey) {
+      this.parameters = Preconditions.checkNotNull(parameters);
+      this.style = Preconditions.checkNotNull(style);
+      this.translationKey = Preconditions.checkNotNull(translationKey);
+      Preconditions.checkArgument(translationKey.length() > 0);
+    }
+
+    /**
+     * Decodes a decoration entry.
+     * @param toDecode Compound Tag to decode
+     * @return the parsed Decoration entry.
+     */
+    public static Decoration decodeRegistryEntry(CompoundBinaryTag toDecode) {
+      ImmutableList.Builder<String> parameters = ImmutableList.builder();
+      ListBinaryTag paramList = toDecode.getList("parameters", EMPTY_LIST_TAG);
+      if (paramList != EMPTY_LIST_TAG) {
+        paramList.forEach(binaryTag -> parameters.add(binaryTag.toString()));
+      }
+
+      ImmutableList.Builder<TextFormat> style = ImmutableList.builder();
+      CompoundBinaryTag styleList = toDecode.getCompound("style");
+      for (String key : styleList.keySet()) {
+        if ("color".equals(key)) {
+          NamedTextColor color = Preconditions.checkNotNull(
+              NamedTextColor.NAMES.value(styleList.getString(key)));
+          style.add(color);
+        } else {
+          // Key is a Style option instead
+          TextDecoration deco = TextDecoration.NAMES.value(key);
+          // This wouldn't be here if it wasn't applied, but here it goes anyway:
+          byte val = styleList.getByte(key);
+          if (val != 0) {
+            style.add(deco);
+          }
+        }
+      }
+
+      String translationKey = toDecode.getString("translation_key");
+
+      return new Decoration(parameters.build(), style.build(), translationKey);
+    }
+
+    public void encodeRegistryEntry(CompoundBinaryTag compoundBinaryTag) {}
+
+  }
+
+  public static enum Priority {
+    SYSTEM,
+    CHAT
+  }
 }

proxy/src/main/java/com/velocitypowered/proxy/connection/registry/ChatRegistry.java

@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2018 Velocity Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.velocitypowered.proxy.connection.registry;
+
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.Maps;
+import com.velocitypowered.api.network.ProtocolVersion;
+
+import java.util.Map;
+import net.kyori.adventure.nbt.BinaryTag;
+import net.kyori.adventure.nbt.CompoundBinaryTag;
+import net.kyori.adventure.nbt.ListBinaryTag;
+
+
+public final class ChatRegistry {
+
+  private final Map<String, ChatData> registeredChatTypes;
+
+  public ChatRegistry(ImmutableList<ChatData> chatDataImmutableList) {
+    registeredChatTypes = Maps.uniqueIndex(chatDataImmutableList, ChatData::getIdentifier);
+  }
+
+  /**
+   * Decodes a CompoundTag storing a Chat Type Registry.
+   *
+   * @param compound The Compound to decode
+   * @param version  Protocol version
+   * @return an ImmutableList of read ChatData
+   */
+  public static ImmutableList<ChatData> fromGameData(ListBinaryTag compound, ProtocolVersion version) {
+    final ImmutableList.Builder<ChatData> builder = ImmutableList.builder();
+    for (BinaryTag binaryTag : compound) {
+      if (binaryTag instanceof CompoundBinaryTag) {
+        builder.add(ChatData.decodeRegistryEntry((CompoundBinaryTag) binaryTag, version));
+      }
+    }
+    return builder.build();
+  }
+
+  public BinaryTag build() {
+    return null;
+  }
+}

proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/JoinGame.java

@@ -17,9 +17,12 @@
 
 package com.velocitypowered.proxy.protocol.packet;
 
+import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
 import com.velocitypowered.api.network.ProtocolVersion;
 import com.velocitypowered.proxy.connection.MinecraftSessionHandler;
+import com.velocitypowered.proxy.connection.registry.ChatData;
+import com.velocitypowered.proxy.connection.registry.ChatRegistry;
 import com.velocitypowered.proxy.connection.registry.DimensionData;
 import com.velocitypowered.proxy.connection.registry.DimensionInfo;
 import com.velocitypowered.proxy.connection.registry.DimensionRegistry;
@@ -32,6 +35,8 @@ import net.kyori.adventure.nbt.CompoundBinaryTag;
 import net.kyori.adventure.nbt.ListBinaryTag;
 import org.checkerframework.checker.nullness.qual.Nullable;
 
+import java.util.List;
+
 public class JoinGame implements MinecraftPacket {
 
   private static final BinaryTagIO.Reader JOINGAME_READER = BinaryTagIO.reader(4 * 1024 * 1024);
@@ -53,7 +58,7 @@ public class JoinGame implements MinecraftPacket {
   private CompoundBinaryTag biomeRegistry; // 1.16.2+
   private int simulationDistance; // 1.18+
   private @Nullable Pair<String, Long> lastDeathPosition;
-  private CompoundBinaryTag chatTypeRegistry; // placeholder, 1.19+
+  private ChatRegistry chatTypeRegistry; // placeholder, 1.19+
 
   public int getEntityId() {
     return entityId;
@@ -183,11 +188,11 @@ public class JoinGame implements MinecraftPacket {
     this.lastDeathPosition = lastDeathPosition;
   }
 
-  public CompoundBinaryTag getChatTypeRegistry() {
+  public ChatRegistry getChatTypeRegistry() {
     return chatTypeRegistry;
   }
 
-  public void setChatTypeRegistry(CompoundBinaryTag chatTypeRegistry) {
+  public void setChatTypeRegistry(ChatRegistry chatTypeRegistry) {
     this.chatTypeRegistry = chatTypeRegistry;
   }
 
@@ -274,9 +279,10 @@ public class JoinGame implements MinecraftPacket {
           .getList("value", BinaryTagTypes.COMPOUND);
       this.biomeRegistry = registryContainer.getCompound("minecraft:worldgen/biome");
       if (version.compareTo(ProtocolVersion.MINECRAFT_1_19) >= 0) {
-        this.chatTypeRegistry = registryContainer.getCompound("minecraft:chat_type");
+        final ImmutableList<ChatData> chatDataList = ChatRegistry.fromGameData(registryContainer.getCompound("minecraft:chat_type").getList("value"), version);
+        this.chatTypeRegistry = new ChatRegistry(chatDataList);
       } else {
-        this.chatTypeRegistry = CompoundBinaryTag.empty();
+        this.chatTypeRegistry = null; // TODO: Faux registry?
       }
     } else {
       dimensionRegistryContainer = registryContainer.getList("dimension",
@@ -387,7 +393,7 @@ public class JoinGame implements MinecraftPacket {
       registryContainer.put("minecraft:dimension_type", dimensionRegistryEntry.build());
       registryContainer.put("minecraft:worldgen/biome", biomeRegistry);
       if (version.compareTo(ProtocolVersion.MINECRAFT_1_19) >= 0) {
-        registryContainer.put("minecraft:chat_type", chatTypeRegistry);
+        registryContainer.put("minecraft:chat_type", chatTypeRegistry.build());
       }
     } else {
       registryContainer.put("dimension", encodedDimensionRegistry);

proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/chat/ChatBuilder.java

@@ -21,15 +21,22 @@ import com.google.common.base.Preconditions;
 import com.google.common.collect.ImmutableList;
 import com.velocitypowered.api.network.ProtocolVersion;
 import com.velocitypowered.api.proxy.Player;
+import com.velocitypowered.proxy.connection.client.ConnectedPlayer;
 import com.velocitypowered.proxy.crypto.SignedChatCommand;
 import com.velocitypowered.proxy.crypto.SignedChatMessage;
 import com.velocitypowered.proxy.protocol.MinecraftPacket;
 import com.velocitypowered.proxy.protocol.ProtocolUtils;
+
 import java.time.Instant;
+import java.util.Objects;
 import java.util.UUID;
+
 import net.kyori.adventure.identity.Identity;
+import net.kyori.adventure.key.Key;
 import net.kyori.adventure.text.Component;
+
 import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
+import org.checkerframework.checker.nullness.qual.NonNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
 
 public class ChatBuilder {
@@ -125,10 +132,10 @@ public class ChatBuilder {
    *
    * @return The {@link MinecraftPacket} to send to the client.
    */
-  public MinecraftPacket toClient() {
+  public MinecraftPacket toClient(ConnectedPlayer player) {
     // This is temporary
     UUID identity = sender == null ? (senderIdentity == null ? Identity.nil().uuid()
-        : senderIdentity.uuid()) : sender.getUniqueId();
+                                        : senderIdentity.uuid()) : sender.getUniqueId();
     Component msg = component == null ? Component.text(message) : component;
 
     if (version.compareTo(ProtocolVersion.MINECRAFT_1_19) >= 0) {
@@ -164,19 +171,45 @@ public class ChatBuilder {
     return chat;
   }
 
-  public static enum ChatType {
-    CHAT((byte) 0),
-    SYSTEM((byte) 1),
-    GAME_INFO((byte) 2);
+  public static class ChatType {
+    public static final ChatType CHAT = new ChatType((byte) 0, Key.key("minecraft", "chat"));
+    public static final ChatType SYSTEM = new ChatType((byte) 1, Key.key("minecraft", "system"));
+    public static final ChatType GAME_INFO = new ChatType((byte) 2, Key.key("minecraft", "game_info"));
 
     private final byte raw;
+    @NonNull
+    private final Key key;
 
-    ChatType(byte raw) {
+    ChatType(byte raw, @NonNull Key key) {
+      Preconditions.checkNotNull(key, "Key cannot be null!");
       this.raw = raw;
+      this.key = key;
     }
 
     public byte getId() {
       return raw;
     }
+
+    @NonNull
+    public Key getKey() {
+      return key;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+      if (this == o) {
+        return true;
+      }
+      if (o == null || getClass() != o.getClass()) {
+        return false;
+      }
+      ChatType chatType = (ChatType) o;
+      return raw == chatType.raw && key.equals(chatType.key);
+    }
+
+    @Override
+    public int hashCode() {
+      return Objects.hash(raw, key);
+    }
   }
 }