From 2fe85ec9b029123bc13f93952d4e33f2f692bbc4 Mon Sep 17 00:00:00 2001
From: tastybento <tastybento@users.noreply.github.com>
Date: Thu, 11 Apr 2024 19:17:47 -0700
Subject: [PATCH] Island deletion across servers.

---
 .../bentobox/managers/IslandsManager.java     | 31 ++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

diff --git a/src/main/java/world/bentobox/bentobox/managers/IslandsManager.java b/src/main/java/world/bentobox/bentobox/managers/IslandsManager.java
index e503e06eb..38090056d 100644
--- a/src/main/java/world/bentobox/bentobox/managers/IslandsManager.java
+++ b/src/main/java/world/bentobox/bentobox/managers/IslandsManager.java
@@ -38,6 +38,8 @@ import org.eclipse.jdt.annotation.NonNull;
 import org.eclipse.jdt.annotation.Nullable;
 
 import com.github.puregero.multilib.MultiLib;
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
 
 import io.papermc.lib.PaperLib;
 import world.bentobox.bentobox.BentoBox;
@@ -48,6 +50,7 @@ import world.bentobox.bentobox.api.flags.Flag;
 import world.bentobox.bentobox.api.localization.TextVariables;
 import world.bentobox.bentobox.api.user.User;
 import world.bentobox.bentobox.database.Database;
+import world.bentobox.bentobox.database.json.BentoboxTypeAdapterFactory;
 import world.bentobox.bentobox.database.objects.Island;
 import world.bentobox.bentobox.database.objects.IslandDeletion;
 import world.bentobox.bentobox.lists.Flags;
@@ -111,6 +114,13 @@ public class IslandsManager {
                 islandCache.updateIsland(island);
             }
         });
+
+        // Delete island blocks
+        MultiLib.onString(plugin, "bentobox-deleteIsland", id -> {
+            BentoBox.getInstance().logDebug("Delete island blocks");
+            IslandDeletion idd = getGson().fromJson(id, IslandDeletion.class);
+            plugin.getIslandDeletionManager().getIslandChunkDeletionManager().add(idd);
+        });
         // List for new islands
         MultiLib.onString(plugin, "bentobox-newIsland", id -> {
             BentoBox.getInstance().logDebug("New island " + id);
@@ -285,13 +295,32 @@ public class IslandsManager {
             removePlayersFromIsland(island);
             if (!plugin.getSettings().isKeepPreviousIslandOnReset()) {
                 // Remove blocks from world
-                plugin.getIslandDeletionManager().getIslandChunkDeletionManager().add(new IslandDeletion(island));
+                IslandDeletion id = new IslandDeletion(island);
+                plugin.getIslandDeletionManager().getIslandChunkDeletionManager().add(id);
+                // Tell other servers
+                MultiLib.notify("bentobox-deleteIsland", getGson().toJson(id));
             }
             // Delete the island from the database
             handler.deleteObject(island);
         }
     }
 
+    private Gson getGson() {
+
+        // Build the Gson
+
+        // excludeFieldsWithoutExposeAnnotation - this means that every field to be stored should use @Expose
+        // enableComplexMapKeySerialization - forces GSON to use TypeAdapters even for Map keys
+        GsonBuilder builder = new GsonBuilder().excludeFieldsWithoutExposeAnnotation()
+                .enableComplexMapKeySerialization().setPrettyPrinting();
+        // Register adapter factory
+        builder.registerTypeAdapterFactory(new BentoboxTypeAdapterFactory(plugin));
+        // Allow characters like < or > without escaping them
+        builder.disableHtmlEscaping();
+
+        return builder.create();
+    }
+
     /**
      * Get the number of islands made on this server. Used by stats.
      *