Add nickname character limit.

common/src/main/java/net/draycia/carbon/common/command/commands/NicknameCommand.java

@@ -39,6 +39,7 @@
 import net.kyori.adventure.audience.Audience;
 import net.kyori.adventure.key.Key;
 import net.kyori.adventure.text.Component;
+import net.kyori.adventure.text.serializer.plain.PlainTextComponentSerializer;
 import org.checkerframework.checker.nullness.qual.NonNull;
 import org.checkerframework.framework.qual.DefaultQualifier;
 
@@ -125,8 +126,19 @@ private void resetNickname(final Commander sender, final CarbonPlayer target) {
     }
 
     private void applyNickname(final Commander sender, final CarbonPlayer target, final String nick) {
+
         // Lazy since the sender might not have permission to set the nickname
         final Supplier<Component> parsedNick = Suppliers.memoize(() -> parseNickname(sender, nick));
+
+        // If the nickname is caught in the character limit, return without setting a nickname.
+        final int nickNameLength = PlainTextComponentSerializer.plainText().serialize(parsedNick.get()).length();
+        final int minLimit = this.config.primaryConfig().nicknameMinLimit();
+        final int maxLimit = this.config.primaryConfig().nicknameMaxLimit();
+        if (nickNameLength < minLimit || maxLimit < nickNameLength) {
+            this.carbonMessages.nicknameErrorCharacterLimit(sender, parsedNick.get(), minLimit, maxLimit);
+            return;
+        }
+
         target.nickname(parsedNick.get());
 
         if (sender instanceof PlayerCommander playerCommander

common/src/main/java/net/draycia/carbon/common/config/PrimaryConfig.java

@@ -93,6 +93,12 @@ public class PrimaryConfig {
     @Comment("Whether Carbon's nickname management should be used. Disable this if you wish to have another plugin manage nicknames.")
     private boolean useCarbonNicknames = true;
 
+    @Comment("Minimum number of characters in nickname.")
+    private int nicknameMinLimit = 3;
+
+    @Comment("Maximum number of characters in nickname.")
+    private int nicknameMaxLimit = 16;
+
     @Comment("Whether Carbon should check for updates using the GitHub API on startup.")
     private boolean updateChecker = true;
 
@@ -176,6 +182,14 @@ public boolean useCarbonNicknames() {
         return this.useCarbonNicknames;
     }
 
+    public int nicknameMinLimit() {
+        return this.nicknameMinLimit;
+    }
+
+    public int nicknameMaxLimit() {
+        return this.nicknameMaxLimit;
+    }
+
     public boolean updateChecker() {
         return this.updateChecker;
     }

common/src/main/java/net/draycia/carbon/common/messages/CarbonMessages.java

@@ -180,6 +180,14 @@ void whisperTargetNotSet(
     @Message("nickname.set.others")
     void nicknameSetOthers(final Audience audience, final String target, final Component nickname);
 
+    @Message("nickname.error.character_limit")
+    void nicknameErrorCharacterLimit(
+        final Audience audience,
+        final Component nickname,
+        @Placeholder("min_limit") final int minLimit,
+        @Placeholder("max_limit") final int maxLimit
+    );
+
     @Message("nickname.show.others")
     void nicknameShowOthers(final Audience audience, final String target, final Component nickname);
 

common/src/main/resources/locale/messages-en_US.properties

@@ -97,6 +97,7 @@ nickname.show.others.unset=<target><red> does not have a nickname set
 nickname.show.others=<target><green>'s nickname is </green><nickname>
 nickname.show.unset=<red>You do not have a nickname set
 nickname.show=<green>Your nickname is </green><nickname>
+nickname.error.character_limit=<red>Nickname "<nickname>" has exceeded the character limit. Must be set to <min_limit>~<max_limit> characters.
 reply.target.missing=<red>You have no-one to reply to
 reply.target.self=<red>You cannot whisper to yourself
 whisper.console=<gold>[<green><sender_display_name></green>] -> [<green><recipient_display_name></green>] <message>