public class DrawString implements Listener {

    public Map<UUID, ItemStack[]> drawStringPV = new HashMap<UUID, ItemStack[]>();



    public static ItemStack drawString() {
        ItemStack item = new ItemStack(Material.WHITE_SHULKER_BOX);
        ItemMeta meta = item.getItemMeta();
        List<String> lore = new ArrayList<String>();

        meta.setDisplayName(ChatColor.translateAlternateColorCodes('&', "&fDrawstring Bag"));
        lore.add("    ");
        lore.add(ChatColor.translateAlternateColorCodes('&', "&79 slots available"));
        meta.setLore(lore);
        item.setItemMeta(meta);
        return item;
    }

    @SuppressWarnings("deprecation")
    @EventHandler
    public void onRightClick(PlayerInteractEvent e) {
        Action action = e.getAction();
        Player player = e.getPlayer();

        if(action.equals(Action.RIGHT_CLICK_AIR) || action.equals(Action.RIGHT_CLICK_BLOCK)) {
            if(player.getItemInHand().equals(drawString())) {
                e.setCancelled(true);
                player.openInventory(drawStringInv(player));
            }
        }
    }

    public Inventory drawStringInv(Player player) {
        Inventory inv = Bukkit.createInventory(null, 9, ChatColor.translateAlternateColorCodes('&', "&2&l" + player.getName() + "'s Drawstring Bag"));

        if(drawStringPV.containsKey(player.getUniqueId())) {
            inv.setContents(drawStringPV.get(player.getUniqueId()));
        }

        return inv;
    }

    @EventHandler
    public void onInvClose(InventoryCloseEvent e) {
        Player player = (Player) e.getPlayer();
        Inventory inv = e.getInventory();
        if(inv.getName().equals(drawStringInv(player).getName())) {
            drawStringPV.put(player.getUniqueId(), drawStringInv(player).getContents());
        }
        Bukkit.broadcastMessage(drawStringPV.toString());
    }
}