Fix spigot compatibility with adventure component in PlayerAdvancementDoneEvent

src/main/java/org/mvplugins/multiverse/inventories/listeners/AdvancementDonePaperHelper.java

@@ -0,0 +1,53 @@
+package org.mvplugins.multiverse.inventories.listeners;
+
+import com.dumptruckman.minecraft.util.Logging;
+import github.scarsz.discordsrv.DiscordSRV;
+import github.scarsz.discordsrv.api.Subscribe;
+import github.scarsz.discordsrv.api.events.AchievementMessagePreProcessEvent;
+import org.bukkit.event.player.PlayerAdvancementDoneEvent;
+
+/**
+ * Spigot is old and outdated, so we have this separate class to handle Paper-specific
+ * advancement done event features that uses adventure text components.
+ */
+final class AdvancementDonePaperHelper {
+
+    private static AdvancementDonePaperHelper instance;
+
+    static AdvancementDonePaperHelper getInstance() {
+        if (instance == null) {
+            instance = new AdvancementDonePaperHelper();
+        }
+        return instance;
+    }
+
+    private AdvancementDonePaperHelper() {
+    }
+
+    void registerDiscordSrvHook() {
+        Logging.fine("Registering DiscordSRV advancement grant hook.");
+        DiscordSRV.api.subscribe(new DiscordSrvHook());
+    }
+
+    void handleAdvancementDoneEventSuppression(PlayerAdvancementDoneEvent event) {
+        Logging.finest("Suppressing advancement done message for player %s due to share handling.",
+                event.getPlayer().getName());
+        event.message(net.kyori.adventure.text.Component.text("mvinv:suppressed"));
+    }
+
+    private static class DiscordSrvHook {
+        @Subscribe
+        public void onAchievementMessage(AchievementMessagePreProcessEvent event) {
+            if (!(event.getTriggeringBukkitEvent() instanceof PlayerAdvancementDoneEvent advancementEvent)) {
+                return;
+            }
+            if (net.kyori.adventure.text.Component.EQUALS.test(
+                    advancementEvent.message(),
+                    net.kyori.adventure.text.Component.text("mvinv:suppressed"))) {
+                Logging.finest("Suppressing DiscordSRV advancement message for player %s due to share handling.",
+                        advancementEvent.getPlayer().getName());
+                event.setCancelled(true);
+            }
+        }
+    }
+}

src/main/java/org/mvplugins/multiverse/inventories/listeners/SilentGrantsListener.java

@@ -1,9 +1,6 @@
 package org.mvplugins.multiverse.inventories.listeners;
 
 import com.dumptruckman.minecraft.util.Logging;
-import github.scarsz.discordsrv.DiscordSRV;
-import github.scarsz.discordsrv.api.Subscribe;
-import github.scarsz.discordsrv.api.events.AchievementMessagePreProcessEvent;
 import org.bukkit.Bukkit;
 import org.bukkit.event.player.PlayerAdvancementDoneEvent;
 import org.bukkit.event.player.PlayerRecipeDiscoverEvent;
@@ -32,9 +29,9 @@ final class SilentGrantsListener implements MVInvListener  {
         this.hasPlayerAdvancementDoneMessageMethod = ReflectHelper.getMethod(
                 PlayerAdvancementDoneEvent.class,"message") != null;
 
-        if (Bukkit.getPluginManager().isPluginEnabled("DiscordSRV")) {
+        if (hasPlayerAdvancementDoneMessageMethod && Bukkit.getPluginManager().isPluginEnabled("DiscordSRV")) {
             Logging.fine("Registering DiscordSRV advancement grant hook.");
-            DiscordSRV.api.subscribe(new DiscordSrvHook());
+            AdvancementDonePaperHelper.getInstance().registerDiscordSrvHook();
         }
     }
 
@@ -58,37 +55,15 @@ void onPlayerAdvancementDone(PlayerAdvancementDoneEvent event) {
             return;
         }
         if (playerShareHandlingState.isHandlingSharable(event.getPlayer(), Sharables.ADVANCEMENTS)) {
-            Logging.finest("Suppressing advancement done message for player %s due to share handling.",
-                    event.getPlayer().getName());
-            event.message(net.kyori.adventure.text.Component.text("mvinv:suppressed"));
+            AdvancementDonePaperHelper.getInstance().handleAdvancementDoneEventSuppression(event);
         }
     }
 
     @EventMethod
     void onPluginEnable(PluginEnableEvent event) {
-        if (event.getPlugin().getName().equals("DiscordSRV")) {
+        if (hasPlayerAdvancementDoneMessageMethod && event.getPlugin().getName().equals("DiscordSRV")) {
             Logging.fine("Registering DiscordSRV advancement grant hook.");
-            DiscordSRV.api.subscribe(new DiscordSrvHook());
-        }
-    }
-
-    private class DiscordSrvHook {
-        @Subscribe
-        public void onAchievementMessage(AchievementMessagePreProcessEvent event) {
-            if (!(event.getTriggeringBukkitEvent() instanceof PlayerAdvancementDoneEvent advancementEvent)) {
-                return;
-            }
-            if (!hasPlayerAdvancementDoneMessageMethod) {
-                // paper does not have the method to suppress notifications
-                return;
-            }
-            if (net.kyori.adventure.text.Component.EQUALS.test(
-                    advancementEvent.message(),
-                    net.kyori.adventure.text.Component.text("mvinv:suppressed"))) {
-                Logging.finest("Suppressing DiscordSRV advancement message for player %s due to share handling.",
-                        advancementEvent.getPlayer().getName());
-                event.setCancelled(true);
-            }
+            AdvancementDonePaperHelper.getInstance().registerDiscordSrvHook();
         }
     }
 }