(1.7.1) Fix Folia inventory ticking error (#11)

src/main/java/de/shiewk/smoderation/paper/SModerationPaper.java

@@ -22,6 +22,7 @@ import org.bukkit.Bukkit;
 import org.bukkit.configuration.file.FileConfiguration;
 import org.bukkit.configuration.file.YamlConfiguration;
 import org.bukkit.entity.Player;
+import org.bukkit.event.Listener;
 import org.bukkit.plugin.java.JavaPlugin;
 
 import java.io.File;
@@ -73,13 +74,13 @@ public final class SModerationPaper extends JavaPlugin {
 
     @Override
     public void onEnable() {
-        getPluginManager().registerEvents(new PunishmentListener(), this);
-        getPluginManager().registerEvents(new CustomInventoryListener(), this);
-        getPluginManager().registerEvents(new InvSeeListener(), this);
-        getPluginManager().registerEvents(new EnderchestSeeListener(), this);
-        getPluginManager().registerEvents(new VanishListener(), this);
-        getPluginManager().registerEvents(new ChatInputListener(), this);
-        getPluginManager().registerEvents(new SocialSpyListener(), this);
+        listen(new PunishmentListener());
+        listen(new CustomInventoryListener());
+        listen(new InvSeeListener());
+        listen(new EnderchestSeeListener());
+        listen(new VanishListener());
+        listen(new ChatInputListener());
+        listen(new SocialSpyListener());
 
         getLifecycleManager().registerEventHandler(LifecycleEvents.COMMANDS, event -> {
             Commands commands = event.registrar();
@@ -98,7 +99,13 @@ public final class SModerationPaper extends JavaPlugin {
             registerCommand(commands, new OfflineTPCommand());
         });
 
-        SchedulerUtil.scheduleGlobalRepeating(PLUGIN, CustomInventoryListener::onTick, 1, 1);
+        if (SchedulerUtil.isFolia){
+            // Normal ticking logic can cause issues on Folia
+            listen(new FoliaInventoryUpdatingListener());
+        } else {
+            SchedulerUtil.scheduleGlobalRepeating(PLUGIN, CustomInventoryListener::tickAllPaper, 1, 1);
+        }
+
         SchedulerUtil.scheduleGlobalRepeating(PLUGIN, ChatInput::tickAll, 1, 1);
 
         container.load(SAVE_FILE);
@@ -106,6 +113,10 @@ public final class SModerationPaper extends JavaPlugin {
         LOGGER.info("Folia: {}", SchedulerUtil.isFolia ? "yes" : "no");
     }
 
+    private void listen(Listener listener) {
+        getPluginManager().registerEvents(listener, this);
+    }
+
     private void registerCommand(Commands commands, CommandProvider provider){
         commands.register(
                 provider.getCommandNode(),

src/main/java/de/shiewk/smoderation/paper/listener/CustomInventoryListener.java

@@ -25,11 +25,15 @@ public class CustomInventoryListener implements Listener {
         }
     }
 
-    public static void onTick(){
+    public static void tickAllPaper(){
         for (Player onlinePlayer : Bukkit.getOnlinePlayers()) {
-            if (onlinePlayer.getOpenInventory().getTopInventory().getHolder() instanceof AutoUpdatingCustomInventory ci) {
-                ci.refresh();
-            }
+            tickForPlayer(onlinePlayer);
+        }
+    }
+
+    public static void tickForPlayer(Player onlinePlayer) {
+        if (onlinePlayer.getOpenInventory().getTopInventory().getHolder() instanceof AutoUpdatingCustomInventory ci) {
+            ci.refresh();
         }
     }
 }

src/main/java/de/shiewk/smoderation/paper/listener/FoliaInventoryUpdatingListener.java

@@ -0,0 +1,44 @@
+package de.shiewk.smoderation.paper.listener;
+
+import de.shiewk.smoderation.paper.SModerationPaper;
+import io.papermc.paper.threadedregions.scheduler.ScheduledTask;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerJoinEvent;
+import org.bukkit.event.player.PlayerQuitEvent;
+import org.bukkit.metadata.FixedMetadataValue;
+import org.bukkit.metadata.MetadataValue;
+
+public class FoliaInventoryUpdatingListener implements Listener {
+
+    public static final String METADATA_KEY = "smod_invtick";
+
+    @EventHandler
+    public void onPlayerJoin(PlayerJoinEvent event){
+        Player player = event.getPlayer();
+        ScheduledTask task = player.getScheduler().runAtFixedRate(
+                SModerationPaper.PLUGIN,
+                t -> CustomInventoryListener.tickForPlayer(player),
+                null,
+                1,
+                1
+        );
+        player.setMetadata(METADATA_KEY, new FixedMetadataValue(
+                SModerationPaper.PLUGIN,
+                task
+        ));
+    }
+
+    @EventHandler
+    public void onPlayerQuit(PlayerQuitEvent event){
+        for (MetadataValue meta : event.getPlayer().getMetadata("smod_invtick")) {
+            if (meta.getOwningPlugin() == SModerationPaper.PLUGIN) {
+                if (meta.value() instanceof ScheduledTask task) {
+                    task.cancel();
+                }
+            }
+        }
+    }
+
+}