adds anti spam

likely needs tweaking

src/main/java/dev/plex/listener/impl/AntiSpamListener.java

@@ -0,0 +1,41 @@
+package dev.plex.listener.impl;
+
+import dev.plex.listener.PlexListener;
+import dev.plex.services.impl.TimingService;
+import io.papermc.paper.event.player.AsyncChatEvent;
+import java.util.UUID;
+import net.kyori.adventure.text.Component;
+import net.kyori.adventure.text.format.NamedTextColor;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.player.PlayerCommandPreprocessEvent;
+
+public class AntiSpamListener extends PlexListener
+{
+    @EventHandler
+    public void onChat(AsyncChatEvent event)
+    {
+        TimingService.cooldowns.merge(event.getPlayer().getUniqueId(), 1L, Long::sum);
+        if (getCount(event.getPlayer().getUniqueId()) > 8L)
+        {
+            event.getPlayer().sendMessage(Component.text("Please refrain from spamming messages.").color(NamedTextColor.GRAY));
+            event.setCancelled(true);
+        }
+    }
+
+    @EventHandler(priority = EventPriority.HIGHEST)
+    public void onPlayerCommandPreprocess(PlayerCommandPreprocessEvent event)
+    {
+        TimingService.cooldowns.merge(event.getPlayer().getUniqueId(), 1L, Long::sum);
+        if (getCount(event.getPlayer().getUniqueId()) > 8L)
+        {
+            event.getPlayer().sendMessage(Component.text("Please refrain from spamming commands.").color(NamedTextColor.GRAY));
+            event.setCancelled(true);
+        }
+    }
+
+    public long getCount(UUID uuid)
+    {
+        return TimingService.cooldowns.getOrDefault(uuid, 1L);
+    }
+}

src/main/java/dev/plex/services/ServiceManager.java

@@ -6,6 +6,7 @@ import dev.plex.services.impl.AutoWipeService;
 import dev.plex.services.impl.BanService;
 import dev.plex.services.impl.CommandBlockerService;
 import dev.plex.services.impl.GameRuleService;
+import dev.plex.services.impl.TimingService;
 import dev.plex.services.impl.UpdateCheckerService;
 import java.util.List;
 import org.bukkit.Bukkit;
@@ -21,6 +22,7 @@ public class ServiceManager
         registerService(new BanService());
         registerService(new CommandBlockerService());
         registerService(new GameRuleService());
+        registerService(new TimingService());
         registerService(new UpdateCheckerService());
     }
 

src/main/java/dev/plex/services/impl/TimingService.java

@@ -0,0 +1,28 @@
+package dev.plex.services.impl;
+
+import dev.plex.services.AbstractService;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.UUID;
+
+public class TimingService extends AbstractService
+{
+    public static final Map<UUID, Long> cooldowns = new HashMap<>();
+
+    public TimingService()
+    {
+        super(true, true);
+    }
+
+    @Override
+    public void run()
+    {
+        cooldowns.clear();
+    }
+
+    @Override
+    public int repeatInSeconds()
+    {
+        return 5;
+    }
+}