From 8a1055eae4e4787929b789393c606d0a13d8b7b8 Mon Sep 17 00:00:00 2001
From: Snabeldier <79211348+Snabeldier@users.noreply.github.com>
Date: Sat, 18 Jan 2025 17:55:09 +0100
Subject: [PATCH] add new methods

---
 src/main/java/minevalley/core/api/Core.java   | 10 ++++---
 .../java/minevalley/core/api/CoreServer.java  |  3 +-
 .../minevalley/core/api/gui/FillItem.java     | 29 +++++++++++++++++++
 3 files changed, 37 insertions(+), 5 deletions(-)
 create mode 100644 src/main/java/minevalley/core/api/gui/FillItem.java

diff --git a/src/main/java/minevalley/core/api/Core.java b/src/main/java/minevalley/core/api/Core.java
index eedbe69b..957b2a9d 100644
--- a/src/main/java/minevalley/core/api/Core.java
+++ b/src/main/java/minevalley/core/api/Core.java
@@ -9,6 +9,7 @@
 import minevalley.core.api.discord.Webhook;
 import minevalley.core.api.economy.BankAccount;
 import minevalley.core.api.enums.DebugType;
+import minevalley.core.api.gui.FillItem;
 import minevalley.core.api.gui.InventoryGui;
 import minevalley.core.api.gui.MultiPageGui;
 import minevalley.core.api.npc.NPC;
@@ -547,14 +548,15 @@ public static InventoryGui createGui(@Nonnull Component title, @Nonnegative int
      * <br>
      * {@code %o%} will be replaced with the amount of pages
      *
-     * @param title title of the inventory
-     * @param size  size of the inventory
+     * @param title     title of the inventory
+     * @param size      size of the inventory
+     * @param fillItems items to fill the inventory with
      * @return new gui-builder
      * @throws IllegalArgumentException if the size is invalid (negative, higher than 54 or not a multiple of 9 while being higher than 6)
      */
     @Nonnull
-    public static MultiPageGui createMultiPageGui(@Nonnull Component title, @Nonnegative int size) throws IllegalArgumentException {
-        return server.createMultiPageGui(size);
+    public static MultiPageGui createMultiPageGui(@Nonnull Component title, @Nonnegative int size, @Nonnull List<FillItem> fillItems) throws IllegalArgumentException {
+        return server.createMultiPageGui(title, size, fillItems);
     }
 
     /**
diff --git a/src/main/java/minevalley/core/api/CoreServer.java b/src/main/java/minevalley/core/api/CoreServer.java
index 7eace2e5..f0793b4b 100644
--- a/src/main/java/minevalley/core/api/CoreServer.java
+++ b/src/main/java/minevalley/core/api/CoreServer.java
@@ -9,6 +9,7 @@
 import minevalley.core.api.discord.Webhook;
 import minevalley.core.api.economy.BankAccount;
 import minevalley.core.api.enums.DebugType;
+import minevalley.core.api.gui.FillItem;
 import minevalley.core.api.gui.InventoryGui;
 import minevalley.core.api.gui.MultiPageGui;
 import minevalley.core.api.npc.NPC;
@@ -154,7 +155,7 @@ public interface CoreServer {
     InventoryGui createGUI(@Nonnull Component title, @Nonnegative int size) throws IllegalArgumentException;
 
     @Nonnull
-    MultiPageGui createMultiPageGui(@Nonnegative int size) throws IllegalArgumentException;
+    MultiPageGui createMultiPageGui(@Nonnull Component title, @Nonnegative int size, @Nonnull List<FillItem> fillItems) throws IllegalArgumentException;
 
     @Nonnull
     World getMainWorld();
diff --git a/src/main/java/minevalley/core/api/gui/FillItem.java b/src/main/java/minevalley/core/api/gui/FillItem.java
new file mode 100644
index 00000000..3de7e90c
--- /dev/null
+++ b/src/main/java/minevalley/core/api/gui/FillItem.java
@@ -0,0 +1,29 @@
+package minevalley.core.api.gui;
+
+import minevalley.core.api.Core;
+import minevalley.core.api.users.OnlineUser;
+import org.bukkit.entity.Player;
+import org.bukkit.event.inventory.InventoryClickEvent;
+import org.bukkit.inventory.ItemStack;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+import java.util.function.BiConsumer;
+import java.util.function.Consumer;
+
+public record FillItem(@Nonnull ItemStack itemStack,
+                       @Nullable Consumer<OnlineUser> callback,
+                       @Nullable BiConsumer<OnlineUser, InventoryClickEvent> advancedCallback) {
+
+    public FillItem {
+        if (itemStack == null) throw new IllegalArgumentException("ItemStack cannot be null");
+    }
+
+    @SuppressWarnings("unused")
+    public void accept(final @Nonnull InventoryClickEvent event) {
+        if (!(event.getWhoClicked() instanceof Player player)) return;
+        final OnlineUser user = Core.getOnlineUser(player);
+        if (callback != null) callback.accept(user);
+        if (advancedCallback != null) advancedCallback.accept(user, event);
+    }
+}