import org.bukkit.Bukkit;
import org.bukkit.Location;
import org.bukkit.Material;
import org.bukkit.World;
import org.bukkit.entity.Player;
import org.bukkit.event.inventory.InventoryClickEvent;
import org.bukkit.inventory.ItemStack;

import java.util.ListIterator;
import java.util.Set;

public class MenuUtiliListener {
    private final MenuCache menuCache = MenuCache.getInstance();
    private static final MenuUtiliListener instance = new MenuUtiliListener();
    private String playermetadata;

    public void onMenuClicking(InventoryClickEvent event) {
        Player player = (Player) event.getWhoClicked();
        Location location = null;
        Object object = null;

        if (player.hasMetadata(playermetadata)) {
            object = player.getMetadata(playermetadata);
            if (object instanceof Location)
                location = (Location) object;
        }
        System.out.println("loc " + location);
        MenuHolderTest menu = menuCache.getMenuInCache(checkMap(player, location, object));


        //System.out.println("test " + event.getClickedInventory() + " " + event.getView().getTopInventory());
        if (menu != null && !menu.getButtons().isEmpty()) {
            ItemStack clickedItem = event.getCurrentItem();
            int clickedSlot = event.getSlot();
            int clickedPos = menu.getPageNumber() * menu.getMenu().getSize() + clickedSlot;
            if (clickedItem == null || clickedItem.getType() == Material.AIR) return;

            if (menu.isSlotsYouCanAddItems()) {
                if (menu.getFillSpace().contains(clickedPos))
                    return;
                else
                    event.setCancelled(true);
            }

            for (ListIterator<MenuButton> menuButtons = menu.getButtons().listIterator(); menuButtons.hasNext(); ) {
                MenuButton menuButton = menuButtons.next();

                if (menuButton.getItem().isSimilar(clickedItem)) {
                    if (menu.getAddedButtons().containsKey(clickedPos) && menu.getAddedButtons().get(clickedPos).isSimilar(clickedItem)) {
                        menuButton.onClickInsideMenu(player, menu.getMenu(), event.getClick());
                        event.setCancelled(true);
                    }
                }
            }
            if (!menu.isSlotsYouCanAddItems()) {
                event.setCancelled(true);
            }
        }
    }

    private Object checkMap(Player player, Location location, Object unknownObject) {
        Set<Object> obj = menuCache.getMenusCached().keySet();
        Object object = null;
        for (Object objectType : obj) {
            if (objectType != null) {
                Object[] splitObjekt = objectType.toString().split("\\*__\\*");
                String firstObject = splitObjekt[0].toString();
                int lastIndexOf = firstObject.lastIndexOf("}");
                Player player1 = Bukkit.getPlayer(splitObjekt[0].toString().substring(17, lastIndexOf));
                if (splitObjekt.length > 1 && player1 != null) {
                    if (player1 == player)
                        object = splitObjekt[0] + "*__*" + splitObjekt[1];
                } else if (splitObjekt.length > 1 && isLocation(splitObjekt[0]) != null && location != null) {
                    if (!isLocation(splitObjekt[0]).equals(location)) continue;
                    object = splitObjekt[0] + "*__*" + splitObjekt[1];
                }

                if (splitObjekt.length > 1 && splitObjekt[0].equals(unknownObject))
                    object = splitObjekt[0] + "*__*" + splitObjekt[1];
            }
        }
        return object;
    }

    public void setPlayermetadata(String playermetadata) {
        this.playermetadata = playermetadata;
    }

    public static MenuUtiliListener getInstance() {
        return instance;
    }

    public static Location isLocation(Object raw) {
        String[] parts = new String[0];
        if (!raw.toString().contains(" ")) {
            String rawText = raw.toString();
            String[] rawTextSplit = rawText.split(",");
            int lastIndexOf = rawTextSplit[0].lastIndexOf("}");
            int firstIndexOf = rawTextSplit[0].lastIndexOf("{");

            parts = new String[]{rawTextSplit[0].substring(firstIndexOf + 6, lastIndexOf) + "", rawTextSplit[1].replace("x=", "").split("\\.")[0] + "", rawTextSplit[2].replace("y=", "").split("\\.")[0] + "", rawTextSplit[3].replace("z=", "").split("\\.")[0]};
        }
        int length;
        if (raw.toString().contains(" "))
            length = (parts = raw.toString().split(" ")).length;
        else
            length = parts.length;
        if (length == 4) {
            final String world = parts[0];
            final World bukkitWorld = Bukkit.getWorld(world);
            if (bukkitWorld == null)
                return null;
            if (!parts[1].matches("[-+]?\\d+") && !parts[2].matches("[-+]?\\d+") && !parts[3].matches("[-+]?\\d+"))
                return null;
            else {
                int x = Integer.parseInt(parts[1]), y = Integer.parseInt(parts[2]), z = Integer.parseInt(parts[3]);
                return new Location(bukkitWorld, x, y, z);
            }
        }

        return null;
    }
}