import lombok.SneakyThrows;
import org.bukkit.Bukkit;
import org.bukkit.Material;
import org.bukkit.Server;
import org.bukkit.entity.Player;

import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

import static org.mineacademy.fo.ReflectionUtil.getNMSClass;

public class UpdateTittleContainers {

    static Class<?> packetclass;
    static Method handle;
    static Field playerConaetion;
    static Class<?> packettestr;

    public static void UpdateTittleContainerss() throws ClassNotFoundException, NoSuchMethodException, NoSuchFieldException {
        if (packetclass == null)
            packetclass = Class.forName("net.minecraft.server.v1_16_R3.Packet");
        if (handle == null)
            handle = Class.forName("org.bukkit.craftbukkit.v1_16_R3.entity.CraftPlayer").getMethod("getHandle");
        if (playerConaetion == null)
            playerConaetion = Class.forName("net.minecraft.server.v1_16_R3.EntityPlayer").getField("playerConnection");
        if (packettestr == null)
            packettestr = Class.forName("net.minecraft.server.v1_16_R3.PlayerConnection");
    }

    @SneakyThrows
    public static void update(Player p, String title, Material container, int inventorySize) {
        UpdateTittleContainerss();
        /*Containers<?> inventoryType = null;
        EntityPlayer ep = ((CraftPlayer) p).getHandle();
        IChatBaseComponent icbc = IChatBaseComponent.ChatSerializer.b("'" + title + "'");

        if (container == Material.HOPPER)
            inventoryType = Containers.HOPPER;
        if (container == Material.CHEST)
            inventoryType = inventorySize == 9 ? Containers.GENERIC_9X1 : inventorySize == 9 * 2 ?
                    Containers.GENERIC_9X2 : inventorySize == 9 * 3 ? Containers.GENERIC_9X3 : inventorySize == 9 * 4 ?
                    Containers.GENERIC_9X4 : inventorySize == 9 * 5 ? Containers.GENERIC_9X5 : null;

        if (inventoryType != null) {
            PacketPlayOutOpenWindow packet = new PacketPlayOutOpenWindow(ep.activeContainer.windowId, inventoryType, icbc);
            ep.playerConnection.sendPacket((Packet<?>) packet);
            ep.updateInventory(ep.activeContainer);
        }*/
        versionCheck(Bukkit.getServer(), p, title, container, inventorySize);
    }

    public static void versionCheck(Server server, Player p, String title, Material container, int inventorySize) {

        System.out.println(Bukkit.getServer().getClass().getPackageName().split("\\.")[3]);

        try {

            Object player = p.getClass().getMethod("getHandle").invoke(p);
            Object activeContainer = player.getClass().getField("activeContainer").get(player);
            Object windowId = activeContainer.getClass().getField("windowId").get(activeContainer);


            Class<?> tests1 = Class.forName("net.minecraft.server.v1_16_R3.IChatBaseComponent");

            Class<?> chatCompenent = Class.forName("net.minecraft.server.v1_16_R3.IChatBaseComponent$ChatSerializer");
            Method declaredMethodChat = chatCompenent.getMethod("b", String.class);
            Object inventoryTittle = declaredMethodChat.invoke(null, "'" + title + "'");

            Class<?> containerClass = Class.forName("net.minecraft.server.v1_16_R3.Containers");
            Object inventoryType = null;
            if (container == Material.HOPPER)
                inventoryType = containerClass.getField("HOPPER").get("HOPPER");
            if (container == Material.CHEST)
                if (inventorySize % 9 == 0)
                    inventoryType = containerClass.getField("GENERIC_9X" + inventorySize / 9).get(null);
                else
                    inventoryType = containerClass.getField("GENERIC_9X3").get(null);
            Constructor<?> PacketConstructor = Class.forName("net.minecraft.server.v1_16_R3.PacketPlayOutOpenWindow").getConstructor(int.class, containerClass, tests1);

            Object methods = PacketConstructor.newInstance(windowId, inventoryType, inventoryTittle);

            System.out.println("Iventory sise" + (5 % 9));


        /*  Class<?> packetclass = Class.forName("net.minecraft.server.v1_16_R3.Packet");
            Method handle = Class.forName("org.bukkit.craftbukkit.v1_16_R3.entity.CraftPlayer").getMethod("getHandle");
            Field playerConaetion = Class.forName("net.minecraft.server.v1_16_R3.EntityPlayer").getField("playerConnection");
            Class<?> packettestr = Class.forName("net.minecraft.server.v1_16_R3.PlayerConnection");*/

            Object handles = handle.invoke(p);
            Object playerconect = playerConaetion.get(handles);
            Method packet1 = packettestr.getMethod("sendPacket", packetclass);

            packet1.invoke(playerconect, methods);
            player.getClass().getMethod("updateInventory", getNMSClass("Container")).invoke(player, activeContainer);
            //PacketPlayOutOpenWindow packet = new PacketPlayOutOpenWindow(ep.activeContainer.windowId, (Containers<?>) inventoryType, icbc);
            System.out.println("handles " + handles + "inventory " + inventoryType + " windowsId " + windowId + " container " + container);
            //System.out.println(Arrays.toString(new String[]{exemple.getDeclaredField("GENERIC_9X1").toString()}));

        } catch (ClassNotFoundException | NoSuchFieldException | IllegalAccessException | NoSuchMethodException | InstantiationException | InvocationTargetException e) {
            e.printStackTrace();
        }
    }
}