First parts of displaying a GUI

ic_plugin_coordinates/src/main/java/nl/interestingcorner/coordinates/commands/GetCoordinatesCommandHandler.java

@@ -13,34 +13,39 @@ public class GetCoordinatesCommandHandler implements CoordinatesCommandHandler {
 
     @Override
     public boolean handleCommand(CommandSender sender, String[] args) {
-        if (sender instanceof Player player) {
+        try {
-            List<Coordinate> coords;
+            if (sender instanceof Player player) {
-            if (args.length < 2) {
+                List<Coordinate> coords;
-                coords = CoordinatesDatabaseManager.INSTANCE.getAllCoordinates();
+                if (args.length < 2) {
-            } else if (args[1].equalsIgnoreCase("world")) {
+                    coords = CoordinatesDatabaseManager.INSTANCE.getAllCoordinates();
-                String world = player.getWorld().getName();
+                } else if (args[1].equalsIgnoreCase("world")) {
-                coords = CoordinatesDatabaseManager.INSTANCE.getAllCoordinates(world);
+                    String world = player.getWorld().getName();
-            } else {
+                    coords = CoordinatesDatabaseManager.INSTANCE.getAllCoordinates(world);
-                sender.sendMessage("Invalid argument: " + args[1]);
+                } else {
-                return false;
+                    sender.sendMessage("Invalid argument: " + args[1]);
+                    return false;
+                }
+    
+                if (coords.isEmpty()) {
+                    player.sendMessage("No coordinates found! Add some with the §3/ic-coords §5add §fcommand.");
+                    return true;
+                }
+                
+                StringBuilder res = new StringBuilder("Coordinates: ");
+    
+                for (Coordinate coordinate : coords) {
+                    res.append(coordinate.toString());
+                }
+    
+                player.sendMessage(res.toString());
+    
+                CoordinatesGUI.open(player, coords);
             }
-
+            return true;
-            if (coords.isEmpty()) {
+        } catch (Exception e) {
-                player.sendMessage("No coordinates found! Add some with the §3/ic-coords §5add §fcommand.");
+            e.printStackTrace();
-                return true;
+            return false;
-            }
-            
-            StringBuilder res = new StringBuilder("Coordinates: ");
-
-            for (Coordinate coordinate : coords) {
-                res.append(coordinate.toString());
-            }
-
-            player.sendMessage(res.toString());
-
-            CoordinatesGUI.open(player, coords);
         }
-        return true;
     }
 
 }

ic_plugin_coordinates/src/main/java/nl/interestingcorner/coordinates/gui/CoordinatesGUI.java

@@ -1,9 +1,12 @@
 package nl.interestingcorner.coordinates.gui;
 
+import java.util.ArrayList;
 import java.util.List;
 
+import org.bukkit.Material;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
 
 import nl.interestingcorner.coordinates.db.Coordinate;
 import nl.interestingcorner.core.gui.GUI;
@@ -11,12 +14,21 @@ import nl.interestingcorner.core.gui.GUI;
 public class CoordinatesGUI {
     public static void open(Player player, List<Coordinate> coords) {
         // Convert coordinates to ItemStacks for GUI display
-        List<ItemStack> items = coords.stream()
+
-                .map(coord -> {
+        List<ItemStack> items = new ArrayList<>();
-                    ItemStack item = coord.toItem();
+        
-                    return item;
+        for (Coordinate coord : coords) {
-                })
+            ItemStack item = coord.toItem();
-                .toList();
+            items.add(item);
+        }
+
+        for (int i = 0; i < 90; i++) {
+            ItemStack item = new ItemStack(Material.AMETHYST_BLOCK);
+            ItemMeta meta = item.getItemMeta();
+            meta.setDisplayName("Test Item " + (i + 1));
+            item.setItemMeta(meta);
+            items.add(item);
+        }
 
         GUI gui = new GUI("Coordinates", GUI.DEFAULT_PAGE_SIZE);
         gui.setItems(items);

ic_plugin_core/src/main/java/nl/interestingcorner/core/gui/ChestGUI.java

@@ -1,29 +0,0 @@
-package nl.interestingcorner.core.gui;
-
-import java.util.List;
-
-import org.bukkit.Bukkit;
-import org.bukkit.entity.Player;
-import org.bukkit.inventory.Inventory;
-import org.bukkit.inventory.ItemStack;
-
-/**
- * Generalized chest GUI for use in plugins.
- */
-public class ChestGUI {
-    public static void open(Player player, String title, List<ItemStack> items) {
-        int itemsAmount = items.size();
-        int size;
-        if (itemsAmount <= 9) {
-            size = 9;
-        } else {
-            // TODO: handle pagination for >54 items
-            size = ((itemsAmount / 9) + 1) * 9;
-        }
-        Inventory gui = Bukkit.createInventory(null, size, title);
-        for (ItemStack item : items) {
-            gui.addItem(item);
-        }
-        player.openInventory(gui);
-    }
-}

ic_plugin_core/src/main/java/nl/interestingcorner/core/gui/ChestGUIListener.java

@@ -1,27 +0,0 @@
-package nl.interestingcorner.core.gui;
-
-import org.bukkit.entity.Player;
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.Listener;
-import org.bukkit.event.inventory.InventoryClickEvent;
-
-/**
- * Generalized listener for chest GUIs. Extend or register with custom logic.
- */
-public class ChestGUIListener implements Listener {
-    private final String guiTitle;
-
-    public ChestGUIListener(String guiTitle) {
-        this.guiTitle = guiTitle;
-    }
-
-    @EventHandler
-    public void onInventoryClick(InventoryClickEvent event) {
-        if (event.getView().getTitle().equals(guiTitle)) {
-            event.setCancelled(true);
-            if (event.getCurrentItem() == null) return;
-            Player player = (Player) event.getWhoClicked();
-            // Extend this class and override this method for custom slot handling
-        }
-    }
-}

ic_plugin_core/src/main/java/nl/interestingcorner/core/gui/GUI.java

@@ -13,13 +13,58 @@ public class GUI implements InventoryHolder {
     public static final int MAX_INVENTORY_SIZE = 54; // max size of inventory before pages are needed
     public static final int DEFAULT_PAGE_SIZE = 45; // default items per page (excluding navigation row)
 
+/**
+ * TODO add listener functionality for clicking on an item, something like
+ * 
+ * 
+public interface GUIListener {
+    void onItemClick(Player player, GUI gui, ItemStack item, int slot);
+}
+
+private GUIListener listener;
+
+public void setListener(GUIListener listener) {
+    this.listener = listener;
+}
+
+public GUIListener getListener() {
+    return listener;
+}
+
+
+@EventHandler
+public void onInventoryClick(InventoryClickEvent event) {
+    if (event.getInventory().getHolder() instanceof GUI gui) {
+        if (gui.getListener() != null) {
+            gui.getListener().onItemClick((Player) event.getWhoClicked(), gui, event.getCurrentItem(), event.getSlot());
+        }
+    }
+}
+ */
+
     /**
      * Inventory that will be displayed
      */
     private Inventory inventory;
+
+    /**
+     * Full list of items that the GUI holds
+     */
     private List<ItemStack> items;
+
+    /**
+     * Current page being displayed
+     */
     private int currentPage;
+
+    /**
+     * Title of the GUI
+     */
     private String title;
+
+    /**
+     * Number of items per page
+     */
     private int pageSize;
 
     public GUI(String title, int pageSize) {

ic_plugin_core/src/main/java/nl/interestingcorner/core/gui/GUIBuilder.java

@@ -1,39 +0,0 @@
-package nl.interestingcorner.core.gui;
-
-import java.util.List;
-
-import org.bukkit.Bukkit;
-import org.bukkit.inventory.Inventory;
-import org.bukkit.inventory.ItemStack;
-
-public class GUIBuilder {
-
-    public Inventory buildInventory(List<ItemStack> items) {
-        /**
-         * if more than 45, add pages. Split by 45 items per page.
-         * use bottom row leftmost and rightmost item for navigation.
-         * use paper item for page number display in middle.
-         * use lore of navigation items clicked to handle showing next/previous page.
-         * use player.getOpeninventory() to get current inventory and update or close
-         * it.
-         */
-
-        int itemsAmount = items.size();
-        int pagesAmount = getPagesAmount(itemsAmount);
-
-        Inventory gui = Bukkit.createInventory(null, GUI.MAX_INVENTORY_SIZE, "Coordinates Menu");
-
-        for (ItemStack item : items) {
-            gui.addItem(item);
-        }
-
-        return gui;
-    }
-
-    private static int getPagesAmount(int itemsAmount) {
-        if (itemsAmount > GUI.MAX_INVENTORY_SIZE) {
-            return ((itemsAmount / GUI.DEFAULT_PAGE_SIZE) + 1);
-        }
-        return 1;
-    }
-}