1.0.0-SNAPSHOT-U53

+ Added BossShop command
+ Added ShopPanel
+ Updated bosses.json to have supporting shop variables
+ Added shop permissions
+ Added Shop messages
+ Added Vault dependency support
+ Updated Panel to have a loadPage method to reduce the repetitive code for loading pages from a list panel

plugin-modules/Core/resources-json/bosses.json

@@ -1,8 +1,10 @@
 {
   "SkeletonKing": {
-    "editing": true,
     "spawnItem": "SKSpawnItem",
     "targeting": "RandomNearby",
+    "editing": true,
+    "buyable": true,
+    "price": 500000.0,
     "entityStats": [
       {
         "mainStats": {

plugin-modules/Core/resources-yml/config.yml

@@ -10,6 +10,7 @@ Settings:
     - 'world_the_end'
     - 'world_nether'
 Toggles:
+  bossShop: true
   endermanTeleporting: true
   potionsAffectingBoss: true
 Limits:
@@ -32,7 +33,10 @@ Hooks:
     - 'blocked_region1'
     - 'blocked_region2'
 Display:
+  AutoSpawns:
+    menuName: '&b&lEpicBosses &3&lAutoSpawns'
   Bosses:
+    menuName: '&b&lEpicBosses &3&lItems'
     name: '&b&l{name}'
     lore:
     - '&3Editing: &f{enabled}'
@@ -42,4 +46,15 @@ Display:
     - '&7boss.'
     - '&7'
     - '&3Right Click »'
-    - '&7Edit the custom boss.'
+    - '&7Edit the custom boss.'
+  DropTable:
+    menuName: '&b&lEpicBosses &3&lDropTables'
+  Items:
+    menuName: '&b&lEpicBosses &3&lCustom Items'
+  Shop:
+    menuName: '&b&lEpicBosses &3&lShop'
+    name: '&b&lBuy {name}''s Egg'
+    lore:
+    - '&3Cost: &a$&f{price}'
+  Skills:
+    menuName: '&b&lEpicBosses &3&lSkills'

plugin-modules/Core/src/com/songoda/epicbosses/CustomBosses.java

@@ -1,6 +1,7 @@
 package com.songoda.epicbosses;
 
 import com.songoda.epicbosses.container.MinionEntityContainer;
+import com.songoda.epicbosses.utils.dependencies.VaultHelper;
 import lombok.Getter;
 import com.songoda.epicbosses.api.BossAPI;
 import com.songoda.epicbosses.commands.BossCmd;
@@ -56,19 +57,27 @@ public class CustomBosses extends JavaPlugin implements IReloadable {
     @Getter private VersionHandler versionHandler;
     @Getter private DebugManager debugManager;
 
-
     @Getter private YmlFileHandler langFileHandler, editorFileHandler, configFileHandler;
     @Getter private FileConfiguration lang, editor, config;
 
+    @Getter private VaultHelper vaultHelper;
+
     @Getter private boolean debug = false;
 
     @Override
     public void onEnable() {
+        Debug.setPlugin(this);
+
         instance = this;
+        vaultHelper = new VaultHelper();
 
         long beginMs = System.currentTimeMillis();
 
-        Debug.setPlugin(this);
+        if(!this.vaultHelper.isConnected()) {
+            Debug.FAILED_TO_CONNECT_TO_VAULT.debug();
+            return;
+        }
+
         new BossAPI(this);
         new Metrics(this);
         new ServerUtils(this);

plugin-modules/Core/src/com/songoda/epicbosses/api/BossAPI.java

@@ -189,7 +189,7 @@ public class BossAPI {
         MessagesElement messagesElement = new MessagesElement();
         CommandsElement commandsElement = new CommandsElement();
 
-        BossEntity bossEntity = new BossEntity(true, null, entityStatsElements, skillsElement, dropsElement, messagesElement, commandsElement);
+        BossEntity bossEntity = new BossEntity(true, null, false, 100.0, entityStatsElements, skillsElement, dropsElement, messagesElement, commandsElement);
         boolean result = PLUGIN.getBossEntityContainer().saveData(name, bossEntity);
 
         if (!result) {

plugin-modules/Core/src/com/songoda/epicbosses/commands/boss/BossHelpCmd.java

@@ -2,6 +2,7 @@ package com.songoda.epicbosses.commands.boss;
 
 import com.songoda.epicbosses.utils.Message;
 import com.songoda.epicbosses.utils.NumberUtils;
+import com.songoda.epicbosses.utils.Permission;
 import com.songoda.epicbosses.utils.command.SubCommand;
 import org.bukkit.command.CommandSender;
 
@@ -18,25 +19,31 @@ public class BossHelpCmd extends SubCommand {
 
     @Override
     public void execute(CommandSender sender, String[] args) {
-        int pageNumber = 0;
+        if(Permission.admin.hasPermission(sender) || Permission.help.hasPermission(sender)) {
+            int pageNumber = 0;
 
-        if(args.length > 1) {
-            Integer newNumber = NumberUtils.get().getInteger(args[1]);
+            if(args.length > 1) {
+                Integer newNumber = NumberUtils.get().getInteger(args[1]);
 
-            if(newNumber != null) pageNumber = newNumber;
+                if(newNumber != null) pageNumber = newNumber;
+            }
+
+            switch (pageNumber) {
+                default:
+                case 1:
+                    Message.Boss_Help_Page1.msg(sender);
+                    break;
+                case 2:
+                    Message.Boss_Help_Page2.msg(sender);
+                    break;
+                case 3:
+                    Message.Boss_Help_Page3.msg(sender);
+                    break;
+            }
+
+            return;
         }
 
-        switch (pageNumber) {
-            default:
-            case 1:
-                Message.Boss_Help_Page1.msg(sender);
-                break;
-            case 2:
-                Message.Boss_Help_Page2.msg(sender);
-                break;
-            case 3:
-                Message.Boss_Help_Page3.msg(sender);
-                break;
-        }
+        Message.Boss_Help_NoPermission.msg(sender);
     }
 }

plugin-modules/Core/src/com/songoda/epicbosses/commands/boss/BossShopCmd.java

@@ -1,23 +1,46 @@
 package com.songoda.epicbosses.commands.boss;
 
+import com.songoda.epicbosses.CustomBosses;
+import com.songoda.epicbosses.utils.Message;
+import com.songoda.epicbosses.utils.Permission;
 import com.songoda.epicbosses.utils.command.SubCommand;
 import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
 
 /**
  * @author Charles Cullen
  * @version 1.0.0
  * @since 10-Oct-18
- *
- * TODO
  */
 public class BossShopCmd extends SubCommand {
 
-    public BossShopCmd() {
+    private CustomBosses plugin;
+
+    public BossShopCmd(CustomBosses plugin) {
         super("shop", "buy", "store");
+
+        this.plugin = plugin;
     }
 
     @Override
     public void execute(CommandSender sender, String[] args) {
+        if(!Permission.shop.hasPermission(sender)) {
+            Message.Boss_Shop_NoPermission.msg(sender);
+            return;
+        }
 
+        if(!(sender instanceof Player)) {
+            Message.General_MustBePlayer.msg(sender);
+            return;
+        }
+
+        if(!this.plugin.getConfig().getBoolean("Toggles.bossShop", true)) {
+            Message.Boss_Shop_Disabled.msg(sender);
+            return;
+        }
+
+        Player player = (Player) sender;
+
+        plugin.getBossPanelManager().getShopPanel().openFor(player);
     }
 }

plugin-modules/Core/src/com/songoda/epicbosses/entity/BossEntity.java

@@ -15,16 +15,17 @@ import java.util.List;
  */
 public class BossEntity {
 
+    @Expose @Getter @Setter private String spawnItem, targeting;
+    @Expose @Getter @Setter private boolean editing, buyable;
+    @Expose @Getter @Setter private Double price;
+
     @Expose @Getter private final List<EntityStatsElement> entityStats;
     @Expose @Getter private final MessagesElement messages;
     @Expose @Getter private final CommandsElement commands;
     @Expose @Getter private final SkillsElement skills;
     @Expose @Getter private final DropsElement drops;
 
-    @Expose @Getter @Setter private String spawnItem, targeting;
-    @Expose @Getter @Setter private boolean editing;
-
-    public BossEntity(boolean editing, String spawnItem, List<EntityStatsElement> entityStats, SkillsElement skills, DropsElement drops, MessagesElement messages, CommandsElement commands) {
+    public BossEntity(boolean editing, String spawnItem, boolean buyable, Double price, List<EntityStatsElement> entityStats, SkillsElement skills, DropsElement drops, MessagesElement messages, CommandsElement commands) {
         this.editing = editing;
         this.entityStats = entityStats;
         this.spawnItem = spawnItem;
@@ -32,11 +33,11 @@ public class BossEntity {
         this.drops = drops;
         this.messages = messages;
         this.commands = commands;
+        this.buyable = buyable;
+        this.price = price;
     }
 
     public boolean isCompleteEnoughToSpawn() {
-        boolean complete = true;
-
         if(this.entityStats == null) return false;
 
         EntityStatsElement entityStatsElement = this.entityStats.get(0);
@@ -49,4 +50,8 @@ public class BossEntity {
 
         return mainStatsElement.getPosition() != null && mainStatsElement.getEntityType() != null && mainStatsElement.getHealth() != null;
     }
+
+    public boolean canBeBought() {
+        return /*!isEditing() &&*/ isBuyable() && (getPrice() != null) && isCompleteEnoughToSpawn();
+    }
 }

plugin-modules/Core/src/com/songoda/epicbosses/managers/BossCommandManager.java

@@ -42,7 +42,7 @@ public class BossCommandManager implements ILoadable {
         this.commandService.registerSubCommand(new BossMenuCmd(this.customBosses.getBossPanelManager()));
         this.commandService.registerSubCommand(new BossNearbyCmd(this.customBosses));
         this.commandService.registerSubCommand(new BossReloadCmd(this.customBosses, this.customBosses.getBossEntityManager()));
-        this.commandService.registerSubCommand(new BossShopCmd());
+        this.commandService.registerSubCommand(new BossShopCmd(this.customBosses));
         this.commandService.registerSubCommand(new BossSkillsCmd(this.customBosses.getBossPanelManager()));
         this.commandService.registerSubCommand(new BossSpawnCmd());
         this.commandService.registerSubCommand(new BossTimeCmd());

plugin-modules/Core/src/com/songoda/epicbosses/managers/BossEntityManager.java

@@ -240,10 +240,10 @@ public class BossEntityManager {
     }
 
     public Map<BossEntity, ItemStack> getMapOfEntitiesAndSpawnItems() {
-        Map<String, BossEntity> currentEntities = new HashMap<>(this.bossesFileManager.getBossEntities());
+        List<BossEntity> currentEntities = this.bossesFileManager.getBossEntities();
         Map<BossEntity, ItemStack> newMap = new HashMap<>();
 
-        currentEntities.forEach((name, bossEntity) -> newMap.put(bossEntity, getSpawnItem(bossEntity)));
+        currentEntities.forEach(bossEntity -> newMap.put(bossEntity, getSpawnItem(bossEntity)));
 
         return newMap;
     }

plugin-modules/Core/src/com/songoda/epicbosses/managers/BossPanelManager.java

@@ -19,11 +19,8 @@ import java.util.Map;
  */
 public class BossPanelManager implements ILoadable, IReloadable {
 
-    @Getter private IPanelHandler mainMenu, customItems, bosses, autoSpawns, dropTables, customSkills;
+    @Getter private IPanelHandler mainMenu, customItems, bosses, autoSpawns, dropTables, customSkills, shopPanel;
 
-    private final String customItemsTitle = "&6&lCustomBosses &e&lItems", autoSpawnsTitle = "&6&lCustomBosses &e&lAutoSpawns",
-                         customBossesTitle = "&6&lCustomBosses &e&lBosses", customSkillsTitle = "&6&lCustomBosses &e&lSkills",
-                         dropTableTitle = "&6&lCustomBosses &e&lDropTable";
     private final CustomBosses customBosses;
 
     public BossPanelManager(CustomBosses customBosses) {
@@ -33,6 +30,7 @@ public class BossPanelManager implements ILoadable, IReloadable {
     @Override
     public void load() {
         loadMainMenu();
+        loadShopMenu();
 
         loadAutoSpawnsMenu();
         loadCustomBossesMenu();
@@ -45,6 +43,7 @@ public class BossPanelManager implements ILoadable, IReloadable {
     @Override
     public void reload() {
         reloadMainMenu();
+        reloadShopMenu();
 
         reloadAutoSpawnsMenu();
         reloadCustomBosses();
@@ -54,6 +53,20 @@ public class BossPanelManager implements ILoadable, IReloadable {
 
     }
 
+    //---------------------------------------------
+    //
+    //  S H O P   P A N E L
+    //
+    //---------------------------------------------
+
+    private void loadShopMenu() {
+        this.shopPanel = new ShopPanel(this, getListMenu("Shop"), this.customBosses);
+    }
+
+    private void reloadShopMenu() {
+        this.shopPanel.initializePanel(getListMenu("Shop"));
+    }
+
     //---------------------------------------------
     //
     //  M A I N   M E N U   P A N E L
@@ -79,11 +92,11 @@ public class BossPanelManager implements ILoadable, IReloadable {
     //---------------------------------------------
 
     private void loadAutoSpawnsMenu() {
-        this.autoSpawns = new AutoSpawnsPanel(this, getListMenu(this.autoSpawnsTitle));
+        this.autoSpawns = new AutoSpawnsPanel(this, getListMenu("AutoSpawns"));
     }
 
     private void reloadAutoSpawnsMenu() {
-        this.autoSpawns.initializePanel(getListMenu(this.autoSpawnsTitle));
+        this.autoSpawns.initializePanel(getListMenu("AutoSpawns"));
     }
 
     //---------------------------------------------
@@ -93,11 +106,11 @@ public class BossPanelManager implements ILoadable, IReloadable {
     //---------------------------------------------
 
     private void loadCustomBossesMenu() {
-        this.bosses = new CustomBossesPanel(this, getListMenu(this.customBossesTitle), this.customBosses);
+        this.bosses = new CustomBossesPanel(this, getListMenu("Bosses"), this.customBosses);
     }
 
     private void reloadCustomBosses() {
-        this.bosses.initializePanel(getListMenu(this.customBossesTitle));
+        this.bosses.initializePanel(getListMenu("Bosses"));
     }
 
     //---------------------------------------------
@@ -107,11 +120,11 @@ public class BossPanelManager implements ILoadable, IReloadable {
     //---------------------------------------------
 
     private void loadCustomSkillsMenu() {
-        this.customSkills = new CustomSkillsPanel(this, getListMenu(this.customSkillsTitle));
+        this.customSkills = new CustomSkillsPanel(this, getListMenu("Skills"));
     }
 
     private void reloadCustomSkills() {
-        this.customSkills.initializePanel(getListMenu(this.customSkillsTitle));
+        this.customSkills.initializePanel(getListMenu("Skills"));
     }
 
     //---------------------------------------------
@@ -121,11 +134,11 @@ public class BossPanelManager implements ILoadable, IReloadable {
     //---------------------------------------------
 
     private void loadDropTableMenu() {
-        this.dropTables = new DropTablePanel(this, getListMenu(this.dropTableTitle));
+        this.dropTables = new DropTablePanel(this, getListMenu("DropTable"));
     }
 
     private void reloadDropTable() {
-        this.dropTables.initializePanel(getListMenu(this.dropTableTitle));
+        this.dropTables.initializePanel(getListMenu("DropTable"));
     }
 
     //---------------------------------------------
@@ -135,11 +148,11 @@ public class BossPanelManager implements ILoadable, IReloadable {
     //---------------------------------------------
 
     private void loadCustomItemsMenu() {
-        this.customItems = new CustomItemsPanel(this, getListMenu(this.customItemsTitle));
+        this.customItems = new CustomItemsPanel(this, getListMenu("Items"));
     }
 
     private void reloadCustomItems() {
-        this.customItems.initializePanel(getListMenu(this.customItemsTitle));
+        this.customItems.initializePanel(getListMenu("Items"));
     }
 
     //---------------------------------------------
@@ -148,13 +161,16 @@ public class BossPanelManager implements ILoadable, IReloadable {
     //
     //---------------------------------------------
 
-    private PanelBuilder getListMenu(String name) {
+    private PanelBuilder getListMenu(String path) {
         Map<String, String> replaceMap = new HashMap<>();
 
-        replaceMap.put("{panelName}", StringUtils.get().translateColor(name));
+        replaceMap.put("{panelName}", StringUtils.get().translateColor(this.customBosses.getConfig().getString(getPath(path))));
 
         return new PanelBuilder(this.customBosses.getEditor().getConfigurationSection("ListPanel"), replaceMap);
     }
 
+    private String getPath(String key) {
+        return "Display." + key + ".menuName";
+    }
 
 }

plugin-modules/Core/src/com/songoda/epicbosses/managers/files/BossesFileManager.java

@@ -9,6 +9,8 @@ import com.songoda.epicbosses.utils.IReloadable;
 import com.songoda.epicbosses.utils.ISavable;
 
 import java.io.File;
+import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
@@ -55,7 +57,11 @@ public class BossesFileManager implements ILoadable, ISavable, IReloadable {
         return this.bossEntityContainer.getData().getOrDefault(name, null);
     }
 
-    public Map<String, BossEntity> getBossEntities() {
-        return this.bossEntityContainer.getData();
+    public Map<String, BossEntity> getBossEntitiesMap() {
+        return new HashMap<>(this.bossEntityContainer.getData());
+    }
+
+    public List<BossEntity> getBossEntities() {
+        return new ArrayList<>(this.bossEntityContainer.getData().values());
     }
 }

plugin-modules/Core/src/com/songoda/epicbosses/panel/CustomBossesPanel.java

@@ -47,7 +47,7 @@ public class CustomBossesPanel extends PanelHandler {
 
     @Override
     public void fillPanel(Panel panel) {
-        Map<String, BossEntity> currentEntities = new HashMap<>(this.bossesFileManager.getBossEntities());
+        Map<String, BossEntity> currentEntities = this.bossesFileManager.getBossEntitiesMap();
         List<String> entryList = new ArrayList<>(currentEntities.keySet());
         int maxPage = panel.getMaxPage(entryList);
 
@@ -75,32 +75,28 @@ public class CustomBossesPanel extends PanelHandler {
     }
 
     private void loadPage(Panel panel, int page, Map<String, BossEntity> bossEntityMap, List<String> entryList) {
-        int fillTo = panel.getPanelBuilderSettings().getFillTo();
-        int startIndex = page * fillTo;
-
-        for(int i = startIndex; i < startIndex + fillTo; i++) {
-            if(i >= bossEntityMap.size()) {
-                panel.setItem(i-startIndex, new ItemStack(Material.AIR), e -> {});
+        panel.loadPage(page, (slot, realisticSlot) -> {
+            if(slot >= bossEntityMap.size()) {
+                panel.setItem(realisticSlot, new ItemStack(Material.AIR), e -> {});
             } else {
-                String name = entryList.get(i);
+                String name = entryList.get(slot);
+
                 BossEntity entity = bossEntityMap.get(name);
                 ItemStack itemStack = this.bossEntityManager.getDisplaySpawnItem(entity);
 
                 if(itemStack == null) {
-                    panel.setItem(i-startIndex, new ItemStack(Material.AIR), e -> {});
-                    continue;
+                    itemStack = new ItemStack(Material.BARRIER);
                 }
 
                 Map<String, String> replaceMap = new HashMap<>();
-                ItemStack clone = itemStack.clone();
 
                 replaceMap.put("{name}", name);
                 replaceMap.put("{enabled}", ""+entity.isEditing());
 
-                ItemStackUtils.applyDisplayName(clone, this.customBosses.getConfig().getString("Display.Bosses.name"), replaceMap);
-                ItemStackUtils.applyDisplayLore(clone, this.customBosses.getConfig().getStringList("Display.Bosses.lore"), replaceMap);
+                ItemStackUtils.applyDisplayName(itemStack, this.customBosses.getConfig().getString("Display.Bosses.name"), replaceMap);
+                ItemStackUtils.applyDisplayLore(itemStack, this.customBosses.getConfig().getStringList("Display.Bosses.lore"), replaceMap);
 
-                panel.setItem(i-startIndex, clone, e -> {
+                panel.setItem(realisticSlot, itemStack, e -> {
                     if(e.getClick() == ClickType.RIGHT || e.getClick() == ClickType.SHIFT_RIGHT) {
                         //TODO
                     } else if(e.getClick() == ClickType.LEFT || e.getClick() == ClickType.SHIFT_LEFT) {
@@ -115,6 +111,6 @@ public class CustomBossesPanel extends PanelHandler {
                     }
                 });
             }
-        }
+        });
     }
 }

plugin-modules/Core/src/com/songoda/epicbosses/panel/ShopPanel.java

@@ -0,0 +1,122 @@
+package com.songoda.epicbosses.panel;
+
+import com.songoda.epicbosses.CustomBosses;
+import com.songoda.epicbosses.entity.BossEntity;
+import com.songoda.epicbosses.managers.BossEntityManager;
+import com.songoda.epicbosses.managers.BossPanelManager;
+import com.songoda.epicbosses.managers.files.BossesFileManager;
+import com.songoda.epicbosses.utils.Debug;
+import com.songoda.epicbosses.utils.Message;
+import com.songoda.epicbosses.utils.NumberUtils;
+import com.songoda.epicbosses.utils.dependencies.VaultHelper;
+import com.songoda.epicbosses.utils.itemstack.ItemStackUtils;
+import com.songoda.epicbosses.utils.panel.Panel;
+import com.songoda.epicbosses.utils.panel.base.PanelHandler;
+import com.songoda.epicbosses.utils.panel.builder.PanelBuilder;
+import org.bukkit.Material;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+
+import java.util.*;
+import java.util.stream.Collectors;
+
+/**
+ * @author Charles Cullen
+ * @version 1.0.0
+ * @since 17-Nov-18
+ */
+public class ShopPanel extends PanelHandler {
+
+    private BossEntityManager bossEntityManager;
+    private BossesFileManager bossesFileManager;
+    private VaultHelper vaultHelper;
+    private CustomBosses plugin;
+
+    public ShopPanel(BossPanelManager bossPanelManager, PanelBuilder panelBuilder, CustomBosses plugin) {
+        super(bossPanelManager, panelBuilder);
+
+        this.plugin = plugin;
+        this.vaultHelper = plugin.getVaultHelper();
+        this.bossEntityManager = plugin.getBossEntityManager();
+        this.bossesFileManager = plugin.getBossesFileManager();
+    }
+
+    @Override
+    public void initializePanel(PanelBuilder panelBuilder) {}
+
+    @Override
+    public void fillPanel(Panel panel) {
+        Map<String, BossEntity> currentEntities = this.bossesFileManager.getBossEntitiesMap();
+        Map<String, BossEntity> filteredMap = currentEntities.entrySet().stream()
+                .filter(entry -> entry.getValue().canBeBought())
+                .collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));
+        List<String> entryList = new ArrayList<>(filteredMap.keySet());
+        int maxPage = panel.getMaxPage(filteredMap);
+
+        panel.setOnPageChange(((player, currentPage, requestedPage) -> {
+            if(requestedPage < 0 || requestedPage > maxPage) return false;
+
+            loadPage(panel, requestedPage, entryList, filteredMap);
+            return true;
+        }));
+
+        loadPage(panel, 0, entryList, filteredMap);
+    }
+
+    @Override
+    public void openFor(Player player) {
+        Panel panel = getPanelBuilder().getPanel()
+                .setDestroyWhenDone(true)
+                .setCancelClick(true)
+                .setCancelLowerClick(true);
+
+        fillPanel(panel);
+        panel.openFor(player);
+    }
+
+    private void loadPage(Panel panel, int page, List<String> entryList, Map<String, BossEntity> filteredMap) {
+        panel.loadPage(page, ((slot, realisticSlot) -> {
+            if(slot >= filteredMap.size()) {
+                panel.setItem(realisticSlot, new ItemStack(Material.AIR), e -> {});
+            } else {
+                String name = entryList.get(slot);
+                BossEntity bossEntity = filteredMap.get(name);
+                ItemStack itemStack = this.bossEntityManager.getDisplaySpawnItem(bossEntity);
+                double price = bossEntity.getPrice();
+
+                if(itemStack == null) {
+                    itemStack = new ItemStack(Material.BARRIER);
+                }
+
+                Map<String, String> replaceMap = new HashMap<>();
+
+                replaceMap.put("{name}", name);
+                replaceMap.put("{price}", NumberUtils.get().formatDouble(price));
+
+                ItemStackUtils.applyDisplayName(itemStack, this.plugin.getConfig().getString("Display.Shop.name"), replaceMap);
+                ItemStackUtils.applyDisplayLore(itemStack, this.plugin.getConfig().getStringList("Display.Shop.lore"), replaceMap);
+
+                panel.setItem(realisticSlot, itemStack, e -> {
+                    ItemStack spawnItem = this.bossEntityManager.getSpawnItem(bossEntity);
+                    Player player = (Player) e.getWhoClicked();
+
+                    if(spawnItem == null) {
+                        Debug.FAILED_TO_GIVE_SPAWN_EGG.debug(e.getWhoClicked().getName(), name);
+                        return;
+                    }
+
+                    double balance = this.vaultHelper.getEconomy().getBalance(player);
+
+                    if(balance < price) {
+                        Message.Boss_Shop_NotEnoughBalance.msg(player, NumberUtils.get().formatDouble(price - balance));
+                        return;
+                    }
+
+                    this.vaultHelper.getEconomy().withdrawPlayer(player, price);
+                    player.getInventory().addItem(spawnItem);
+                    Message.Boss_Shop_Purchased.msg(player, spawnItem.getItemMeta().getDisplayName());
+                });
+            }
+        }));
+    }
+}

plugin-modules/Core/src/com/songoda/epicbosses/utils/Debug.java

@@ -38,6 +38,7 @@ public enum Debug {
     FAILED_TO_LOAD_COMMANDS("The commands name that is provided ({0}) doesn't exist or wasn't found."),
     FAILED_TO_CREATE_ACTIVE_BOSS_HOLDER("Something went wrong while trying to create an active boss holder for someone who is trying to spawn a boss."),
     FAILED_TO_GIVE_SPAWN_EGG("{0} tried to obtain a spawn egg for the boss {1} but it has not been set yet."),
+    FAILED_TO_CONNECT_TO_VAULT("Something went wrong while trying to connect to Vault. Please make sure you have an Economy and Permission plugin connected to your Vault plugin such as Essentials and GroupManager."),
 
     DROP_TABLE_FAILED_INVALID_NUMBER("The specified position ({0}) on the drop table is not a valid number."),
     DROP_TABLE_FAILED_TO_GET_ITEM("The drop table failed to get the specific item for the list."),

plugin-modules/Core/src/com/songoda/epicbosses/utils/IHelper.java

@@ -0,0 +1,12 @@
+package com.songoda.epicbosses.utils;
+
+/**
+ * @author AMinecraftDev
+ * @version 1.0.0
+ * @since 13-Dec-17
+ */
+public interface IHelper {
+
+    boolean isConnected();
+
+}

plugin-modules/Core/src/com/songoda/epicbosses/utils/Message.java

@@ -46,6 +46,7 @@ public enum Message {
     Boss_GiveEgg_Given("&b&lEpicBosses &8» &7You have given {0} {1}x {2}'s boss spawn item."),
     Boss_GiveEgg_Received("&b&lEpicBosses &8» &7You have received {0}x {1} boss spawn item(s)."),
 
+    Boss_Help_NoPermission("&c&l(!) &cYou do not have access to this command."),
     Boss_Help_Page1(
             "&8&m----*--------&3&l[ &b&lBoss Help &7(Page 1/3) &3&l]&8&m--------*----\n" +
             "&b/boss help (page) &8» &7Displays boss commands.\n" +
@@ -106,6 +107,11 @@ public enum Message {
     Boss_Reload_NoPermission("&c&l(!) &cYou do not have access to this command."),
     Boss_Reload_Successful("&b&lEpicBosses &8» &7All boss data has been reloaded. The process took &f{0}ms&7."),
 
+    Boss_Shop_Disabled("&c&l(!) &cThe boss shop is currently disabled."),
+    Boss_Shop_NoPermission("&c&l(!) &cYou do not have access to this command."),
+    Boss_Shop_NotEnoughBalance("&c&l(!) &cYou do not have enough money to make this purchase! You need &a$&f{0}&c more."),
+    Boss_Shop_Purchased("&b&lEpicBosses &8» &7You have purchased &f1x {0}&7."),
+
     Boss_Skills_NoPermission("&c&l(!) &cYou do not have access to this command.");
 
     private static FileConfiguration LANG;

plugin-modules/Core/src/com/songoda/epicbosses/utils/Permission.java

@@ -13,9 +13,12 @@ public enum Permission {
     admin("boss.admin"),
     create("boss.create"),
     debug("boss.debug"),
+    edit("boss.edit"),
     give("boss.give"),
+    help("boss.help"),
+    nearby("boss.nearby"),
     reload("boss.reload"),
-    nearby("boss.nearby");
+    shop("boss.shop");
 
     @Getter private String permission;
 

plugin-modules/Core/src/com/songoda/epicbosses/utils/dependencies/VaultHelper.java

@@ -0,0 +1,63 @@
+package com.songoda.epicbosses.utils.dependencies;
+
+import com.songoda.epicbosses.utils.IHelper;
+import lombok.Getter;
+import net.milkbowl.vault.chat.Chat;
+import net.milkbowl.vault.economy.Economy;
+import net.milkbowl.vault.permission.Permission;
+import org.bukkit.Bukkit;
+import org.bukkit.plugin.RegisteredServiceProvider;
+
+/**
+ * @author AMinecraftDev
+ * @version 1.0.0
+ * @since 25-May-17
+ */
+public class VaultHelper implements IHelper {
+
+    @Getter private Permission permission;
+    @Getter private Economy economy;
+    @Getter private Chat chat;
+
+    @Override
+    public boolean isConnected() {
+        return (setupChat() && setupPermission() && setupEconomy());
+    }
+    
+    private boolean setupChat() {
+        if (Bukkit.getServer().getPluginManager().getPlugin("Vault") == null) {
+            return false;
+        }
+        RegisteredServiceProvider<Chat> rsp = Bukkit.getServer().getServicesManager().getRegistration(Chat.class);
+        if (rsp == null) {
+            return false;
+        }
+        chat = rsp.getProvider();
+        return chat != null;
+    }
+    
+    private boolean setupEconomy() {
+        if (Bukkit.getServer().getPluginManager().getPlugin("Vault") == null) {
+            return false;
+        }
+        RegisteredServiceProvider<Economy> rsp = Bukkit.getServer().getServicesManager().getRegistration(Economy.class);
+        if (rsp == null) {
+            return false;
+        }
+        this.economy = rsp.getProvider();
+        return this.economy != null;
+    }
+    
+    private boolean setupPermission() {
+        if (Bukkit.getServer().getPluginManager().getPlugin("Vault") == null) {
+            return false;
+        }
+        RegisteredServiceProvider<Permission> rsp = Bukkit.getServer().getServicesManager().getRegistration(Permission.class);
+        if (rsp == null) {
+            return false;
+        }
+        this.permission = rsp.getProvider();
+        return this.permission != null;
+    }
+
+}

plugin-modules/Core/src/com/songoda/epicbosses/utils/panel/Panel.java

@@ -1,5 +1,6 @@
 package com.songoda.epicbosses.utils.panel;
 
+import com.songoda.epicbosses.utils.panel.base.IPageHandler;
 import com.songoda.epicbosses.utils.panel.builder.PanelBuilder;
 import lombok.Getter;
 import com.songoda.epicbosses.utils.ICloneable;
@@ -347,6 +348,16 @@ public class Panel implements Listener, ICloneable<Panel> {
         return this;
     }
 
+
+    public void loadPage(int page, IPageHandler pageHandler) {
+        int fillTo = getPanelBuilderSettings().getFillTo();
+        int startIndex = page * fillTo;
+
+        for(int i = startIndex; i < startIndex + fillTo; i++) {
+            pageHandler.handleSlot(i, i-startIndex);
+        }
+    }
+
     /**
      * Used to set the parent panel for this Panel, which
      * will be used if the Back Button is set up for this

plugin-modules/Core/src/com/songoda/epicbosses/utils/panel/base/IPageHandler.java

@@ -0,0 +1,12 @@
+package com.songoda.epicbosses.utils.panel.base;
+
+/**
+ * @author Charles Cullen
+ * @version 1.0.0
+ * @since 17-Nov-18
+ */
+public interface IPageHandler {
+
+    void handleSlot(int slot, int realisticSlot);
+
+}

pom.xml

@@ -19,7 +19,7 @@
     </modules>
 
     <properties>
-        <plugin.version>1.0.0-SNAPSHOT-U52</plugin.version>
+        <plugin.version>1.0.0-SNAPSHOT-U53</plugin.version>
         <plugin.name>EpicBosses</plugin.name>
         <plugin.main>com.songoda.epicbosses.CustomBosses</plugin.main>
         <plugin.author>AMinecraftDev</plugin.author>