♻️ refactor code.

Author: siloneco

pom.xml

@@ -6,7 +6,7 @@
 
   <groupId>net.azisaba</groupId>
   <artifactId>GraceStopAnnouncer</artifactId>
-  <version>1.0.0</version>
+  <version>1.0.1</version>
   <packaging>jar</packaging>
 
   <name>${project.artifactId}</name>

src/main/java/net/azisaba/gracestopannouncer/core/HoldConnectionHandler.java

@@ -40,14 +40,6 @@ public void notifyPreStopTriggered() {
 
     serverAdapter.executeAsyncAfter(
         () -> {
-          try {
-            Thread.sleep(3000);
-          } catch (InterruptedException e) {
-            completableFuture.complete(-1);
-            Thread.currentThread().interrupt();
-            return;
-          }
-
           int retryCount = 5;
           int remainingTime = -1;
 

src/main/java/net/azisaba/gracestopannouncer/velocity/GraceStopAnnouncerVelocity.java

@@ -19,7 +19,7 @@
 @Plugin(
     id = "gracestopannouncer",
     name = "GraceStopAnnouncer",
-    version = "1.0.0",
+    version = "1.0.1",
     url = "https://github.com/AzisabaNetwork/GraceStopAnnouncer",
     description = "Announce server shutdown to players.",
     authors = {"Azisaba Network"})
@@ -94,5 +94,7 @@ public void onProxyInitialization(ProxyInitializeEvent event) {
   }
 
   @Subscribe
-  public void onProxyShutdown(ProxyShutdownEvent event) {}
+  public void onProxyShutdown(ProxyShutdownEvent event) {
+    logger.info("GraceStopAnnouncer is disabled.");
+  }
 }

src/main/java/net/azisaba/gracestopannouncer/velocity/VelocityServerAdapter.java

@@ -1,12 +1,9 @@
 package net.azisaba.gracestopannouncer.velocity;
 
-import com.velocitypowered.api.scheduler.ScheduledTask;
 import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.HashMap;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
-import java.util.concurrent.atomic.AtomicReference;
 import lombok.RequiredArgsConstructor;
 import net.azisaba.gracestopannouncer.core.ServerAdapter;
 import net.azisaba.gracestopannouncer.core.util.MessageFormatter;
@@ -19,9 +16,6 @@ public class VelocityServerAdapter implements ServerAdapter {
   private final GraceStopAnnouncerVelocity plugin;
   private final MessageFormatter messageFormatter;
 
-  private final AtomicReference<Integer> idProvider = new AtomicReference<>(0);
-  private final HashMap<Integer, ScheduledTask> taskMap = new HashMap<>();
-
   @Override
   public void executeAsyncAfter(Runnable runnable, long delay) {
     plugin