[FEAT] Try to use Linked Account names for chat relay

src/main/java/com/hypherionmc/sdlink/core/accounts/DiscordAuthor.java

@@ -14,12 +14,13 @@ import com.hypherionmc.sdlink.core.services.SDLinkPlatform;
 public class DiscordAuthor {
 
     // User used for Server Messages
-    public static final DiscordAuthor SERVER = new DiscordAuthor(SDLinkConfig.INSTANCE.channelsAndWebhooks.serverName, SDLinkConfig.INSTANCE.channelsAndWebhooks.serverAvatar, "server", true);
+    public static final DiscordAuthor SERVER = new DiscordAuthor(SDLinkConfig.INSTANCE.channelsAndWebhooks.serverName, SDLinkConfig.INSTANCE.channelsAndWebhooks.serverAvatar, "server", true, "");
 
     private final String displayName;
     private final String avatar;
     private final boolean isServer;
     private final String username;
+    private final String uuid;
 
     /**
      * Internal. Use {@link #of(String, String, String)}
@@ -27,11 +28,12 @@ public class DiscordAuthor {
      * @param avatar The avatar URL of the Author
      * @param isServer Is the Author the Minecraft Server
      */
-    private DiscordAuthor(String displayName, String avatar, String username, boolean isServer) {
+    private DiscordAuthor(String displayName, String avatar, String username, boolean isServer, String uuid) {
         this.displayName = displayName;
         this.avatar = avatar;
         this.username = username;
         this.isServer = isServer;
+        this.uuid = uuid;
     }
 
     /**
@@ -45,7 +47,8 @@ public class DiscordAuthor {
                 displayName,
                 SDLinkConfig.INSTANCE.chatConfig.playerAvatarType.resolve(SDLinkPlatform.minecraftHelper.isOnlineMode() ? uuid : username),
                 username,
-                false
+                false,
+                SDLinkPlatform.minecraftHelper.isOnlineMode() ? uuid : username
         );
     }
 
@@ -64,4 +67,8 @@ public class DiscordAuthor {
     public String getAvatar() {
         return avatar;
     }
+
+    public String getUuid() {
+        return uuid;
+    }
 }

src/main/java/com/hypherionmc/sdlink/core/accounts/MinecraftAccount.java

@@ -97,6 +97,10 @@ public class MinecraftAccount {
         return standard(profile.getName());
     }
 
+    public static SDLinkAccount getStoredFromUUID(String uuid) {
+        return sdlinkDatabase.findById(uuid, SDLinkAccount.class);
+    }
+
     public String getUsername() {
         return username;
     }

src/main/java/com/hypherionmc/sdlink/core/config/impl/ChatSettingsConfig.java

@@ -17,6 +17,10 @@ import java.util.List;
  */
 public class ChatSettingsConfig {
 
+    @Path("useLinkedNames")
+    @SpecComment("Use linked account names in Discord/Minecraft messages, instead of the default ones")
+    public boolean useLinkedNames = true;
+
     @Path("formatting")
     @SpecComment("Convert Discord to MC, and MC to Discord Formatting")
     public boolean formatting = true;

src/main/java/com/hypherionmc/sdlink/core/messaging/discord/DiscordMessageBuilder.java

@@ -5,6 +5,7 @@
 package com.hypherionmc.sdlink.core.messaging.discord;
 
 import com.hypherionmc.sdlink.core.accounts.DiscordAuthor;
+import com.hypherionmc.sdlink.core.accounts.MinecraftAccount;
 import com.hypherionmc.sdlink.core.config.SDLinkConfig;
 import com.hypherionmc.sdlink.core.config.impl.MessageIgnoreConfig;
 import com.hypherionmc.sdlink.core.messaging.MessageType;
@@ -38,6 +39,14 @@ public final class DiscordMessageBuilder {
             this.author = DiscordAuthor.SERVER;
         }
 
+        if (SDLinkConfig.INSTANCE.chatConfig.useLinkedNames && this.author != DiscordAuthor.SERVER) {
+            MinecraftAccount account = MinecraftAccount.standard(author.getRawUsername());
+
+            if (account != null && account.getDiscordUser() != null) {
+                this.author = DiscordAuthor.of(account.getDiscordName(), author.getUuid(), author.getRawUsername());
+            }
+        }
+
         return this;
     }