Add implementation scheduler for bukkit & folia;

src/com/pretzel/dev/villagertradelimiter/scheduler/BukkitSchedulerAdapter.java

@@ -0,0 +1,29 @@
+package com.pretzel.dev.villagertradelimiter.scheduler;
+
+
+import java.util.function.Consumer;
+import org.bukkit.entity.Entity;
+import org.bukkit.plugin.Plugin;
+import org.bukkit.scheduler.BukkitScheduler;
+
+@SuppressWarnings("deprecation")
+public class BukkitSchedulerAdapter implements SchedulerAdapter {
+
+  private final Plugin plugin;
+  private final BukkitScheduler scheduler;
+
+  public BukkitSchedulerAdapter(final Plugin plugin) {
+    this.plugin = plugin;
+    this.scheduler = plugin.getServer().getScheduler();
+  }
+
+  @Override
+  public void runAsync(final Runnable submitDataTask) {
+    scheduler.runTaskAsynchronously(plugin, submitDataTask);
+  }
+
+  @Override
+  public <T extends Entity> void runEntity(final T entity, final Consumer<T> consumer) {
+    scheduler.runTask(plugin, () -> consumer.accept(entity));
+  }
+}

src/com/pretzel/dev/villagertradelimiter/scheduler/FoliaSchedulerAdapter.java

@@ -0,0 +1,43 @@
+package com.pretzel.dev.villagertradelimiter.scheduler;
+
+
+import io.papermc.paper.threadedregions.scheduler.AsyncScheduler;
+import java.util.function.Consumer;
+import org.bukkit.entity.Entity;
+import org.bukkit.plugin.Plugin;
+
+public class FoliaSchedulerAdapter implements SchedulerAdapter {
+
+  private final static boolean SUPPORTED = checkSupport();
+  private final Plugin plugin;
+  private final AsyncScheduler asyncScheduler;
+
+  public FoliaSchedulerAdapter(final Plugin plugin) {
+    this.plugin = plugin;
+    this.asyncScheduler = plugin.getServer().getAsyncScheduler();
+  }
+
+  public static boolean isSupported() {
+    return SUPPORTED;
+  }
+
+  private static boolean checkSupport() {
+    try {
+      Class.forName("io.papermc.paper.threadedregions.RegionizedServer");
+      return true;
+    } catch (ClassNotFoundException e) {
+      return false;
+    }
+  }
+
+  @Override
+  public void runAsync(Runnable submitDataTask) {
+    asyncScheduler.runNow(plugin, task -> submitDataTask.run());
+  }
+
+  @Override
+  public <T extends Entity> void runEntity(T entity, Consumer<T> consumer) {
+    entity.getScheduler().run(plugin, task -> consumer.accept(entity), () -> {
+    });
+  }
+}