Answer private messages to yourself with an easter egg

Messaging yourself gets a random answer from your other self after ten
seconds, formatted like a normal private message, instead of "nobody
receives your message".

VelocityCore/src/de/steamwar/messages/BungeeCore.properties

@@ -583,6 +583,11 @@ CHAT_MSG_SENDER = §e{0}
 CHAT_MSG_SEPARATOR = §8»
 CHAT_MSG_RECEIVER = §e{0}
 CHAT_MSG = §7{0}
+CHAT_MSG_SELF_1 = I know.
+CHAT_MSG_SELF_2 = Who are you telling?
+CHAT_MSG_SELF_3 = Interesting. Tell me more.
+CHAT_MSG_SELF_4 = Shh, the others can hear us!
+CHAT_MSG_SELF_5 = Finally someone who understands me.
 CHAT_SPECIAL_ALERT = §e{0}§8»§e{1} §7{2}
 CHAT_FIGHT_PARTICIPANT_SENDER = {0}{1}
 CHAT_FIGHT_PARTICIPANT = §8» §7{0}

VelocityCore/src/de/steamwar/messages/BungeeCore_de.properties

@@ -548,6 +548,11 @@ CHAT_MSG_SENDER = §e{0}
 CHAT_MSG_SEPARATOR = §8»
 CHAT_MSG_RECEIVER = §e{0}
 CHAT_MSG = §7{0}
+CHAT_MSG_SELF_1 = Ich weiß.
+CHAT_MSG_SELF_2 = Wem erzählst du das?
+CHAT_MSG_SELF_3 = Interessant. Erzähl mir mehr.
+CHAT_MSG_SELF_4 = Psst, die anderen hören uns!
+CHAT_MSG_SELF_5 = Endlich jemand, der mich versteht.
 CHAT_SPECIAL_ALERT = §e{0}§8»§e{1} §7{2}
 CHAT_FIGHT_PARTICIPANT_SENDER = {0}{1}
 CHAT_FIGHT_PARTICIPANT = §8» §7{0}

VelocityCore/src/de/steamwar/velocitycore/chat/DirectChannel.java

@@ -30,6 +30,8 @@ import de.steamwar.velocitycore.VelocityCore;
 import net.kyori.adventure.text.Component;
 
 import java.util.UUID;
+import java.util.concurrent.ThreadLocalRandom;
+import java.util.concurrent.TimeUnit;
 import java.util.stream.Stream;
 
 import static de.steamwar.persistent.Storage.lastChats;
@@ -39,6 +41,8 @@ import static de.steamwar.persistent.Storage.lastChats;
  */
 public class DirectChannel extends ChatChannel {
 
+    private static final int SELF_ANSWERS = 5;
+
     private final UUID first;
     private final UUID second;
 
@@ -118,6 +122,17 @@ public class DirectChannel extends ChatChannel {
             lastChats.put(senderPlayer, partnerPlayer);
             lastChats.put(partnerPlayer, senderPlayer);
         }
+
+        if (first.equals(second)) {
+            // Easter egg: messaging yourself gets an answer from your other self instead of "nobody receives your message"
+            Message answer = new Message("CHAT_MSG_SELF_" + (ThreadLocalRandom.current().nextInt(SELF_ANSWERS) + 1));
+            VelocityCore.schedule(() -> sender.sendMessage(Component.text()
+                    .append(iconComponent(sender, iconColor()))
+                    .append(Component.text(" "))
+                    .append(format(sender, sender, sender.parseToLegacy(answer)))
+                    .build())).delay(10, TimeUnit.SECONDS).schedule();
+            return true;
+        }
         return false;
     }