public class GuiDroghe implements Listener {
    private final Inventory inv;

    public GuiDroghe() {
        // Create a new inventory, with no owner (as this isn't a real inventory), a size of nine, called example
        inv = Bukkit.createInventory(null, 27, "Droghe");

        inv.setItem(11 ,new ItemBuilder(Material.PUMPKIN_SEEDS).displayname(Config.XANAX_NAME.getMessage()).build());
        inv.setItem(12 ,new ItemBuilder(Material.SUGAR).displayname(Config.EROINA_NAME.getMessage()).build());
        inv.setItem(13 ,new ItemBuilder(Material.RABBIT_FOOT).displayname(Config.CRACK_NAME.getMessage()).build());
        inv.setItem(14 ,new ItemBuilder(Material.MELON_SEEDS).displayname(Config.MORFINA_NAME.getMessage()).build());
    }

    public void openInventory(final HumanEntity ent) {
        ent.openInventory(inv);
    }

    @EventHandler
    public void onInventoryClick(final InventoryClickEvent e) {
        if (!e.getInventory().equals(inv)) return;

        e.setCancelled(true);

        final ItemStack clickedItem = e.getCurrentItem();

        // verify current item is not null
        if (clickedItem == null || clickedItem.getType() == Material.AIR) return;

        final Player p = (Player) e.getWhoClicked();

        //XANAX
        if(e.getRawSlot() == 11) {
            if(MoreEnchant.getTokensApi().hasEnough(Bukkit.getOfflinePlayer(e.getWhoClicked().getUniqueId()), Config.XANAX_COST.getInt())) {
                MoreEnchant.getTokensApi().removeTokens(Bukkit.getOfflinePlayer(e.getWhoClicked().getUniqueId()), Config.XANAX_COST.getInt(), LostCause.PAY);
                e.getWhoClicked().getInventory().addItem(new ItemBuilder(Material.PUMPKIN_SEEDS).displayname(Config.XANAX_NAME.getMessage()).build());
            } else {
                e.getWhoClicked().sendMessage(ChatColor.translateAlternateColorCodes('&', "&aHai bisogno di " + Config.XANAX_COST.getInt() + " Tokens per comprarla"));
            }
        }

        //EROINA
        if(e.getRawSlot() == 12) {
            if(MoreEnchant.getTokensApi().hasEnough(Bukkit.getOfflinePlayer(e.getWhoClicked().getUniqueId()), Config.EROINA_COST.getInt())) {
                MoreEnchant.getTokensApi().removeTokens(Bukkit.getOfflinePlayer(e.getWhoClicked().getUniqueId()), Config.EROINA_COST.getInt(), LostCause.PAY);
                e.getWhoClicked().getInventory().addItem(new ItemBuilder(Material.SUGAR).displayname(Config.EROINA_NAME.getMessage()).build());
            } else {
                e.getWhoClicked().sendMessage(ChatColor.translateAlternateColorCodes('&', "&aHai bisogno di " + Config.EROINA_COST.getInt() + " Tokens per comprarla"));
            }
        }

        //CRACK
        if(e.getRawSlot() == 13) {
            if(MoreEnchant.getTokensApi().hasEnough(Bukkit.getOfflinePlayer(e.getWhoClicked().getUniqueId()), Config.CRACK_COST.getInt())) {
                MoreEnchant.getTokensApi().removeTokens(Bukkit.getOfflinePlayer(e.getWhoClicked().getUniqueId()), Config.CRACK_COST.getInt(), LostCause.PAY);
                e.getWhoClicked().getInventory().addItem(new ItemBuilder(Material.RABBIT_FOOT).displayname(Config.CRACK_NAME.getMessage()).build());
            } else {
                e.getWhoClicked().sendMessage(ChatColor.translateAlternateColorCodes('&', "&aHai bisogno di " + Config.CRACK_COST.getInt() + " Tokens per comprarla"));
            }
        }

        //MORFINA
        if(e.getRawSlot() == 14) {
            if(MoreEnchant.getTokensApi().hasEnough(Bukkit.getOfflinePlayer(e.getWhoClicked().getUniqueId()), Config.MORFINA_COST.getInt())) {
                MoreEnchant.getTokensApi().removeTokens(Bukkit.getOfflinePlayer(e.getWhoClicked().getUniqueId()), Config.MORFINA_COST.getInt(), LostCause.PAY);
                e.getWhoClicked().getInventory().addItem(new ItemBuilder(Material.MELON_SEEDS).displayname(Config.CRACK_NAME.getMessage()).build());
            } else {
                e.getWhoClicked().sendMessage(ChatColor.translateAlternateColorCodes('&', "&aHai bisogno di " + Config.MORFINA_COST.getInt() + " Tokens per comprarla"));
            }
        }
    }

    // Cancel dragging in our inventory
    @EventHandler
    public void onInventoryClick(final InventoryDragEvent e) {
        if (e.getInventory().equals(inv)) {
            e.setCancelled(true);
        }
    }
}