From 400f856c9ad0678242fe9e014260ad6de3322980 Mon Sep 17 00:00:00 2001
From: NotMyFault <mc.cache@web.de>
Date: Wed, 9 Feb 2022 10:32:07 +0100
Subject: [PATCH] fix: Handle an empty component GUI gracefully

---
 .../core/components/ComponentPresetManager.java           | 8 +++++++-
 Core/src/main/resources/lang/messages_en.json             | 1 +
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/Core/src/main/java/com/plotsquared/core/components/ComponentPresetManager.java b/Core/src/main/java/com/plotsquared/core/components/ComponentPresetManager.java
index 0b514996f..7ac0db4b8 100644
--- a/Core/src/main/java/com/plotsquared/core/components/ComponentPresetManager.java
+++ b/Core/src/main/java/com/plotsquared/core/components/ComponentPresetManager.java
@@ -181,7 +181,13 @@ public class ComponentPresetManager {
             }
             allowedPresets.add(componentPreset);
         }
-        final int size = (int) Math.ceil((double) allowedPresets.size() / 9.0D);
+        final int size;
+        if (allowedPresets.isEmpty()) {
+            player.sendMessage(TranslatableCaption.of("preset.empty"));
+            return null;
+        } else {
+            size = (int) Math.ceil((double) allowedPresets.size() / 9.0D);
+        }
         final PlotInventory plotInventory = new PlotInventory(this.inventoryUtil, player, size,
                 TranslatableCaption.of("preset.title").getComponent(player)) {
             @Override
diff --git a/Core/src/main/resources/lang/messages_en.json b/Core/src/main/resources/lang/messages_en.json
index 6ca0e0229..6ffe3b3e2 100644
--- a/Core/src/main/resources/lang/messages_en.json
+++ b/Core/src/main/resources/lang/messages_en.json
@@ -463,6 +463,7 @@
   "preset.preset_lore_cost": "<prefix><gray>Cost: </gray><gold><cost></gold>",
   "preset.preset_lore_component": "<gray>Component: </gray><gold><component></gold>",
   "preset.title": "Plot Components",
+  "preset.empty": "<prefix><red>No plot component presets available.</red>",
   "generic.generic_other": "<gray>other</gray>",
   "generic.generic_merged": "<gray>merged</gray>",
   "generic.generic_unowned": "<gray>unowned</gray>",