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package de.bitcraft.pathfinding;

import com.google.common.reflect.Reflection;
import com.mojang.authlib.GameProfile;
import com.mojang.authlib.properties.Property;
import net.minecraft.server.v1_8_R3.*;
import org.bukkit.Bukkit;
import org.bukkit.Chunk;
import org.bukkit.Location;
import org.bukkit.World;
import org.bukkit.craftbukkit.v1_8_R3.CraftServer;
import org.bukkit.craftbukkit.v1_8_R3.CraftWorld;
import org.bukkit.craftbukkit.v1_8_R3.entity.CraftPlayer;
import org.bukkit.craftbukkit.v1_8_R3.util.CraftChatMessage;
import org.bukkit.entity.Entity;
import org.bukkit.entity.Player;

import java.util.*;

/**
 * Created by Robin on 25.11.2017.
 */
public class NPC extends Reflections {

    MinecraftServer minecraftServer;

    WorldServer worldServer;

    EntityPlayer entityPlayer;
    GameProfile gameProfile;

    public NPC(String name, Location location) {
        minecraftServer = ((CraftServer) Bukkit.getServer()).getServer();
        worldServer = ((CraftWorld) location.getWorld()).getHandle();
        gameProfile = new GameProfile(UUID.randomUUID(), name);

        entityPlayer = new EntityPlayer(minecraftServer, worldServer, gameProfile, new PlayerInteractManager(worldServer));
        Player player = entityPlayer.getBukkitEntity().getPlayer();
        player.setPlayerListName("");
        entityPlayer.setLocation(location.getX(), location.getY(), location.getZ(), location.getYaw(), location.getPitch());

    }

    public void changeSkin(String value, String signature) {
        gameProfile.getProperties().put("textures", new Property("textures", value, signature));
    }
  public void move(Location loc) {
        entityPlayer.move(loc.getX(), loc.getY(), loc.getZ());
       /* PacketPlayOutEntity.PacketPlayOutRelEntityMoveLook packet = new PacketPlayOutEntity.PacketPlayOutRelEntityMoveLook(this.getEntityID(),
                (byte)(int)Math.floor((loc.getX()-this.getLocation().getX())*32.0D),
                (byte)(int)Math.floor((loc.getY()-this.getLocation().getY())*32.0D),
                (byte)(int)Math.floor((loc.getZ()-this.getLocation().getZ())*32.0D),
                (byte)loc.getYaw(), (byte)loc.getPitch(), false);
        for(Player player : Bukkit.getOnlinePlayers()) {
            sendPacket(packet, player);
        }*/
    }

    public Player getPlayer() {
        return entityPlayer.getBukkitEntity().getPlayer();
    }

    public void spawn(Player player) {
        PacketPlayOutNamedEntitySpawn packetPlayOutNamedEntitySpawn = new PacketPlayOutNamedEntitySpawn();
        setValue(packetPlayOutNamedEntitySpawn, "a", entityPlayer.getBukkitEntity().getEntityId());
        setValue(packetPlayOutNamedEntitySpawn, "b", gameProfile.getId());
        setValue(packetPlayOutNamedEntitySpawn, "c", getFixLocation(getLocation().getX()));
        setValue(packetPlayOutNamedEntitySpawn, "d", getFixLocation(getLocation().getY()));
        setValue(packetPlayOutNamedEntitySpawn, "e", getFixLocation(getLocation().getZ()));
        setValue(packetPlayOutNamedEntitySpawn, "f", getFixRotation(getLocation().getYaw()));
        setValue(packetPlayOutNamedEntitySpawn, "g", getFixRotation(getLocation().getPitch()));
        setValue(packetPlayOutNamedEntitySpawn, "h", 0);
        DataWatcher dataWatcher = new DataWatcher(entityPlayer);
        dataWatcher.a(10, (byte)127);
        dataWatcher.a(6, (float) 20);
        setValue(packetPlayOutNamedEntitySpawn, "i", dataWatcher);
        addToTablist(player);
        sendPacket(packetPlayOutNamedEntitySpawn, player);

        headRotation(getFixRotation(getLocation().getYaw()), getFixRotation(getLocation().getPitch()), player);
    }

    public void despawn(Player player) {
        PacketPlayOutEntityDestroy packetPlayOutEntityDestroy = new PacketPlayOutEntityDestroy(new int[] {entityPlayer.getBukkitEntity().getEntityId()});
        removeToTabList(player);
        sendPacket(packetPlayOutEntityDestroy, player);
    }

    public void addToTablist(Player player) {
        PacketPlayOutPlayerInfo packetPlayOutPlayerInfo = new PacketPlayOutPlayerInfo();
        PacketPlayOutPlayerInfo.PlayerInfoData playerInfoData = packetPlayOutPlayerInfo.new PlayerInfoData(gameProfile, 1, WorldSettings.EnumGamemode.NOT_SET, CraftChatMessage.fromString(gameProfile.getName())[0]);
        List<PacketPlayOutPlayerInfo.PlayerInfoData> players = (List <PacketPlayOutPlayerInfo.PlayerInfoData>) getValue(packetPlayOutPlayerInfo, "b");
        players.add(playerInfoData);

        setValue(packetPlayOutPlayerInfo, "a", PacketPlayOutPlayerInfo.EnumPlayerInfoAction.ADD_PLAYER);
        setValue(packetPlayOutPlayerInfo, "b", players);

        sendPacket(packetPlayOutPlayerInfo, player);
    }

    public void removeToTabList(Player player) {
        PacketPlayOutPlayerInfo packetPlayOutPlayerInfo = new PacketPlayOutPlayerInfo();
        PacketPlayOutPlayerInfo.PlayerInfoData playerInfoData = packetPlayOutPlayerInfo.new PlayerInfoData(gameProfile, 1, WorldSettings.EnumGamemode.NOT_SET, CraftChatMessage.fromString(gameProfile.getName())[0]);
        List<PacketPlayOutPlayerInfo.PlayerInfoData> players = (List <PacketPlayOutPlayerInfo.PlayerInfoData>) getValue(packetPlayOutPlayerInfo, "b");
        players.add(playerInfoData);

        setValue(packetPlayOutPlayerInfo, "a", PacketPlayOutPlayerInfo.EnumPlayerInfoAction.REMOVE_PLAYER);
        setValue(packetPlayOutPlayerInfo, "b", players);

        sendPacket(packetPlayOutPlayerInfo, player);
    }

    public void teleport(Location location, Player player){
        PacketPlayOutEntityTeleport packet = new PacketPlayOutEntityTeleport();
        setValue(packet, "a", entityPlayer.getBukkitEntity().getEntityId());
        setValue(packet, "b", getFixLocation(location.getX()));
        setValue(packet, "c", getFixLocation(location.getY()));
        setValue(packet, "d", getFixLocation(location.getZ()));
        setValue(packet, "e", getFixRotation(location.getYaw()));
        setValue(packet, "f", getFixRotation(location.getPitch()));
        setValue(packet, "g", !this.getLocation().getBlock().isEmpty());
        sendPacket(packet, player);
        headRotation(location.getYaw(), location.getPitch(), player);
    }

    private Entity getEntityByUniqueId(UUID uuid) {
        for(World world : Bukkit.getWorlds()) {
            for(Chunk chunk : world.getLoadedChunks()) {
                for(Entity entity : chunk.getEntities()) {
                    if(entity.getUniqueId().equals(uuid)) {
                        return entity;
                    }
                }
            }
        }
        return null;
    }

    public void headRotation(float yaw,float pitch, Player player){
        PacketPlayOutEntity.PacketPlayOutEntityLook packet = new PacketPlayOutEntity.PacketPlayOutEntityLook(entityPlayer.getBukkitEntity().getEntityId(), getFixRotation(yaw),getFixRotation(pitch) , true);
        PacketPlayOutEntityHeadRotation packetHead = new PacketPlayOutEntityHeadRotation();
        setValue(packetHead, "a", entityPlayer.getBukkitEntity().getEntityId());
        setValue(packetHead, "b", getFixRotation(yaw));


        sendPacket(packet, player);
        sendPacket(packetHead, player);
    }

    public void setLocation(Location location) {
    }

    public int getFixLocation(double pos){
        return (int)MathHelper.floor(pos * 32.0D);
    }

    public byte getFixRotation(float yawpitch){
        return (byte) ((int) (yawpitch * 256.0F / 360.0F));
    }

    public int getEntityID() {
        return entityPlayer.getBukkitEntity().getEntityId();
    }



    public Location getLocation() {
        return getPlayer().getLocation();
    }