fix: all null pointers in disconnect listeners (there was so much)

i didn't even know how the bot even functioned for the whole 5 months without me noticing

src/main/java/me/chayapak1/chomens_bot/Bot.java

@@ -387,7 +387,11 @@ public class Bot extends SessionAdapter {
         }
 
         for (final SessionListener listener : listeners) {
-            listener.disconnected(disconnectedEvent);
+            try {
+                listener.disconnected(disconnectedEvent);
+            } catch (final Exception e) {
+                logger.error(e);
+            }
         }
     }
 

src/main/java/me/chayapak1/chomens_bot/Configuration.java

@@ -84,7 +84,6 @@ public class Configuration {
     }
 
     public static class Core {
-        public int refillInterval = (60 * 5) * 1000; // 5 minutes
         public String customName = "{\"text\":\"@\"}";
     }
 

src/main/java/me/chayapak1/chomens_bot/plugins/CorePlugin.java

@@ -30,7 +30,6 @@ import org.geysermc.mcprotocollib.protocol.packet.ingame.serverbound.player.Serv
 import java.util.*;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ConcurrentLinkedQueue;
-import java.util.concurrent.ScheduledFuture;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicInteger;
 
@@ -45,8 +44,6 @@ public class CorePlugin
 
     public volatile boolean ready = false;
 
-    private ScheduledFuture<?> refillTask;
-
     public final Vector3i fromSize;
     public Vector3i toSize;
 
@@ -76,8 +73,6 @@ public class CorePlugin
                 15
         );
 
-        bot.position.addListener(this);
-
         if (hasRateLimit() && hasReset()) {
             bot.executor.scheduleAtFixedRate(
                     () -> commandsPerSecond.set(0),
@@ -90,6 +85,7 @@ public class CorePlugin
         bot.addListener(this);
         bot.world.addListener(this);
         bot.tick.addListener(this);
+        bot.position.addListener(this);
     }
 
     @Override
@@ -426,7 +422,9 @@ public class CorePlugin
         if (!ready) {
             ready = true;
 
-            refillTask = bot.executor.scheduleAtFixedRate(this::refill, 0, bot.config.core.refillInterval, TimeUnit.MILLISECONDS);
+            reset();
+            refill();
+
             for (final Listener listener : listeners) listener.coreReady();
         }
     }
@@ -440,10 +438,6 @@ public class CorePlugin
     @Override
     public void disconnected (final DisconnectedEvent event) {
         ready = false;
-
-        refillTask.cancel(false);
-
-        reset();
     }
 
     public void recalculateRelativePositions () {

src/main/java/me/chayapak1/chomens_bot/plugins/SelfCarePlugin.java

@@ -4,7 +4,6 @@ import me.chayapak1.chomens_bot.Bot;
 import me.chayapak1.chomens_bot.Configuration;
 import net.kyori.adventure.text.Component;
 import org.geysermc.mcprotocollib.network.Session;
-import org.geysermc.mcprotocollib.network.event.session.DisconnectedEvent;
 import org.geysermc.mcprotocollib.network.packet.Packet;
 import org.geysermc.mcprotocollib.protocol.data.game.ClientCommand;
 import org.geysermc.mcprotocollib.protocol.data.game.entity.EntityEvent;
@@ -22,14 +21,11 @@ import org.geysermc.mcprotocollib.protocol.packet.ingame.serverbound.inventory.S
 import org.geysermc.mcprotocollib.protocol.packet.ingame.serverbound.player.ServerboundPlayerCommandPacket;
 
 import java.util.Arrays;
-import java.util.concurrent.ScheduledFuture;
 import java.util.concurrent.TimeUnit;
 
 public class SelfCarePlugin extends Bot.Listener implements ChatPlugin.Listener {
     private final Bot bot;
 
-    private ScheduledFuture<?> checkTask;
-
     public boolean visible = false;
 
     private int entityId;
@@ -154,13 +150,11 @@ public class SelfCarePlugin extends Bot.Listener implements ChatPlugin.Listener
         muted = false;
         prefix = false;
 
-        final Runnable task = () -> {
+        bot.executor.scheduleAtFixedRate(() -> {
             if (!bot.loggedIn) return;
 
             check();
-        };
-
-        checkTask = bot.executor.scheduleAtFixedRate(task, 0, bot.config.selfCare.delay, TimeUnit.MILLISECONDS);
+        }, 0, bot.config.selfCare.delay, TimeUnit.MILLISECONDS);
     }
 
     private void packetReceived (final ClientboundGameEventPacket packet) {
@@ -220,9 +214,4 @@ public class SelfCarePlugin extends Bot.Listener implements ChatPlugin.Listener
         if (bot.options.useChat) bot.chat.sendCommandInstantly(command);
         else bot.core.run(command);
     }
-
-    @Override
-    public void disconnected (final DisconnectedEvent event) {
-        checkTask.cancel(true);
-    }
 }