LibsDisguises/src/me/libraryaddict/disguise/utilities/DisguiseUtilities.java

package me.libraryaddict.disguise.utilities;

import java.lang.reflect.Array;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Random;
import java.util.Set;
import java.util.UUID;
import java.util.regex.Pattern;

import org.bukkit.Bukkit;
import org.bukkit.Location;
import org.bukkit.Material;
import org.bukkit.World;
import org.bukkit.block.BlockFace;
import org.bukkit.entity.Ageable;
import org.bukkit.entity.Entity;
import org.bukkit.entity.Player;
import org.bukkit.entity.Zombie;
import org.bukkit.inventory.EquipmentSlot;
import org.bukkit.inventory.ItemStack;
import org.bukkit.potion.PotionEffect;
import org.bukkit.scheduler.BukkitRunnable;
import org.bukkit.scoreboard.Scoreboard;
import org.bukkit.scoreboard.Team;
import org.bukkit.scoreboard.Team.Option;
import org.bukkit.scoreboard.Team.OptionStatus;
import org.bukkit.util.Vector;

import com.comphenix.protocol.PacketType;
import com.comphenix.protocol.PacketType.Play.Server;
import com.comphenix.protocol.ProtocolLibrary;
import com.comphenix.protocol.ProtocolManager;
import com.comphenix.protocol.events.PacketContainer;
import com.comphenix.protocol.reflect.StructureModifier;
import com.comphenix.protocol.wrappers.BlockPosition;
import com.comphenix.protocol.wrappers.WrappedDataWatcher;
import com.comphenix.protocol.wrappers.WrappedGameProfile;

import me.libraryaddict.disguise.DisguiseAPI;
import me.libraryaddict.disguise.DisguiseConfig;
import me.libraryaddict.disguise.LibsDisguises;
import me.libraryaddict.disguise.disguisetypes.Disguise;
import me.libraryaddict.disguise.disguisetypes.DisguiseType;
import me.libraryaddict.disguise.disguisetypes.PlayerDisguise;
import me.libraryaddict.disguise.disguisetypes.TargetedDisguise;
import me.libraryaddict.disguise.disguisetypes.TargetedDisguise.TargetType;
import me.libraryaddict.disguise.disguisetypes.watchers.AgeableWatcher;
import me.libraryaddict.disguise.disguisetypes.watchers.PlayerWatcher;
import me.libraryaddict.disguise.disguisetypes.watchers.ZombieWatcher;
import me.libraryaddict.disguise.utilities.PacketsManager.LibsPackets;

public class DisguiseUtilities {
    public static final Random random = new Random();
    /**
     * This is a list of names which was called by other plugins. As such, don't remove from the gameProfiles as its the duty of
     * the plugin to do that.
     */
    private static HashSet<String> addedByPlugins = new HashSet<>();
    private static LinkedHashMap<String, Disguise> clonedDisguises = new LinkedHashMap<>();
    /**
     * A hashmap of the uuid's of entitys, alive and dead. And their disguises in use
     */
    private static HashMap<UUID, HashSet<TargetedDisguise>> disguisesInUse = new HashMap<>();
    /**
     * Disguises which are stored ready for a entity to be seen by a player Preferably, disguises in this should only stay in for
     * a max of a second.
     */
    private static HashMap<Integer, HashSet<TargetedDisguise>> futureDisguises = new HashMap<>();
    /**
     * A hashmap storing the uuid and skin of a playername
     */
    private static HashMap<String, WrappedGameProfile> gameProfiles = new HashMap<>();
    private static LibsDisguises libsDisguises;
    private static HashMap<String, ArrayList<Object>> runnables = new HashMap<>();
    private static HashSet<UUID> selfDisguised = new HashSet<>();
    private static Thread mainThread;
    private static PacketContainer spawnChunk;

    static {
        try {
            Object server = ReflectionManager.getNmsMethod("MinecraftServer", "getServer").invoke(null);
            Object world = ((List) server.getClass().getField("worlds").get(server)).get(0);

            Object bedChunk = ReflectionManager.getNmsClass("Chunk")
                    .getConstructor(ReflectionManager.getNmsClass("World"), int.class, int.class).newInstance(world, 0, 0);

            Field cSection = bedChunk.getClass().getDeclaredField("sections");
            cSection.setAccessible(true);

            Object chunkSection = ReflectionManager.getNmsClass("ChunkSection").getConstructor(int.class, boolean.class)
                    .newInstance(0, true);

            Object block = ReflectionManager.getNmsClass("Block").getMethod("getById", int.class).invoke(null,
                    Material.BED_BLOCK.getId());

            Method fromLegacyData = block.getClass().getMethod("fromLegacyData", int.class);
            Method setType = chunkSection.getClass().getMethod("setType", int.class, int.class, int.class,
                    ReflectionManager.getNmsClass("IBlockData"));
            Method setSky = chunkSection.getClass().getMethod("a", int.class, int.class, int.class, int.class);
            Method setEmitted = chunkSection.getClass().getMethod("b", int.class, int.class, int.class, int.class);

            for (BlockFace face : new BlockFace[] {
                    BlockFace.EAST, BlockFace.WEST, BlockFace.NORTH, BlockFace.SOUTH
            }) {
                int x = 1 + face.getModX();

                int z = 1 + face.getModZ();

                setType.invoke(chunkSection, x, 0, z, fromLegacyData.invoke(block, face.ordinal()));

                setSky.invoke(chunkSection, x, 0, z, 0);

                setEmitted.invoke(chunkSection, x, 0, z, 0);
            }

            Object[] array = (Object[]) Array.newInstance(chunkSection.getClass(), 16);

            array[0] = chunkSection;

            cSection.set(bedChunk, array);

            spawnChunk = ProtocolLibrary.getProtocolManager()
                    .createPacketConstructor(PacketType.Play.Server.MAP_CHUNK, bedChunk, 65535).createPacket(bedChunk, 65535);

            Field threadField = ReflectionManager.getNmsField("MinecraftServer", "primaryThread");
            threadField.setAccessible(true);

            mainThread = (Thread) threadField.get(ReflectionManager.getMinecraftServer());
        }
        catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    public static boolean addClonedDisguise(String key, Disguise disguise) {
        if (DisguiseConfig.getMaxClonedDisguises() > 0) {
            if (clonedDisguises.containsKey(key)) {
                clonedDisguises.remove(key);
            }
            else if (DisguiseConfig.getMaxClonedDisguises() == clonedDisguises.size()) {
                clonedDisguises.remove(clonedDisguises.keySet().iterator().next());
            }

            if (DisguiseConfig.getMaxClonedDisguises() > clonedDisguises.size()) {
                clonedDisguises.put(key, disguise);
                return true;
            }
        }

        return false;
    }

    public static void addDisguise(UUID entityId, TargetedDisguise disguise) {
        if (!getDisguises().containsKey(entityId)) {
            getDisguises().put(entityId, new HashSet<TargetedDisguise>());
        }

        getDisguises().get(entityId).add(disguise);

        checkConflicts(disguise, null);

        if (disguise.getDisguiseTarget() == TargetType.SHOW_TO_EVERYONE_BUT_THESE_PLAYERS && disguise.isModifyBoundingBox()) {
            doBoundingBox(disguise);
        }
    }

    public static void addFutureDisguise(final int entityId, final TargetedDisguise disguise) {
        if (!futureDisguises.containsKey(entityId)) {
            futureDisguises.put(entityId, new HashSet<TargetedDisguise>());
        }

        futureDisguises.get(entityId).add(disguise);

        final BukkitRunnable runnable = new BukkitRunnable() {
            @Override
            public void run() {
                if (futureDisguises.containsKey(entityId) && futureDisguises.get(entityId).contains(disguise)) {
                    for (World world : Bukkit.getWorlds()) {
                        for (Entity entity : world.getEntities()) {
                            if (entity.getEntityId() == entityId) {
                                UUID uniqueId = entity.getUniqueId();

                                for (TargetedDisguise disguise : futureDisguises.remove(entityId)) {
                                    addDisguise(uniqueId, disguise);
                                }

                                return;
                            }
                        }
                    }

                    futureDisguises.get(entityId).remove(disguise);

                    if (futureDisguises.get(entityId).isEmpty()) {
                        futureDisguises.remove(entityId);
                    }
                }
            }
        };

        runnable.runTaskLater(libsDisguises, 20);
    }

    public static void addGameProfile(String string, WrappedGameProfile gameProfile) {
        getGameProfiles().put(string, gameProfile);
        getAddedByPlugins().add(string.toLowerCase());
    }

    /**
     * If name isn't null. Make sure that the name doesn't see any other disguise. Else if name is null. Make sure that the
     * observers in the disguise don't see any other disguise.
     */
    public static void checkConflicts(TargetedDisguise disguise, String name) {
        // If the disguise is being used.. Else we may accidentally undisguise something else
        if (DisguiseAPI.isDisguiseInUse(disguise)) {
            Iterator<TargetedDisguise> disguiseItel = getDisguises().get(disguise.getEntity().getUniqueId()).iterator();
            // Iterate through the disguises
            while (disguiseItel.hasNext()) {
                TargetedDisguise d = disguiseItel.next();
                // Make sure the disguise isn't the same thing
                if (d != disguise) {
                    // If the loop'd disguise is hiding the disguise to everyone in its list
                    if (d.getDisguiseTarget() == TargetType.HIDE_DISGUISE_TO_EVERYONE_BUT_THESE_PLAYERS) {
                        // If player is a observer in the loop
                        if (disguise.getDisguiseTarget() == TargetType.HIDE_DISGUISE_TO_EVERYONE_BUT_THESE_PLAYERS) {
                            // If player is a observer in the disguise
                            // Remove them from the loop
                            if (name != null) {
                                d.removePlayer(name);
                            }
                            else {
                                for (String playername : disguise.getObservers()) {
                                    d.silentlyRemovePlayer(playername);
                                }
                            }
                        }
                        else if (disguise.getDisguiseTarget() == TargetType.SHOW_TO_EVERYONE_BUT_THESE_PLAYERS) {
                            // If player is not a observer in the loop
                            if (name != null) {
                                if (!disguise.getObservers().contains(name)) {
                                    d.removePlayer(name);
                                }
                            }
                            else {
                                for (String playername : new ArrayList<>(d.getObservers())) {
                                    if (!disguise.getObservers().contains(playername)) {
                                        d.silentlyRemovePlayer(playername);
                                    }
                                }
                            }
                        }
                    }
                    else if (d.getDisguiseTarget() == TargetType.SHOW_TO_EVERYONE_BUT_THESE_PLAYERS) {
                        // Here you add it to the loop if they see the disguise
                        if (disguise.getDisguiseTarget() == TargetType.HIDE_DISGUISE_TO_EVERYONE_BUT_THESE_PLAYERS) {
                            // Everyone who is in the disguise needs to be added to the loop
                            if (name != null) {
                                d.addPlayer(name);
                            }
                            else {
                                for (String playername : disguise.getObservers()) {
                                    d.silentlyAddPlayer(playername);
                                }
                            }
                        }
                        else if (disguise.getDisguiseTarget() == TargetType.SHOW_TO_EVERYONE_BUT_THESE_PLAYERS) {
                            // This here is a paradox.
                            // If fed a name. I can do this.
                            // But the rest of the time.. Its going to conflict.
                            // The below is debug output. Most people wouldn't care for it.

                            // System.out.print("Cannot set more than one " + TargetType.SHOW_TO_EVERYONE_BUT_THESE_PLAYERS
                            // + " on a entity. Removed the old disguise.");
                            disguiseItel.remove();
                            d.removeDisguise();
                        }
                    }
                }
            }
        }
    }

    /**
     * Sends entity removal packets, as this disguise was removed
     */
    public static void destroyEntity(TargetedDisguise disguise) {
        if (mainThread != Thread.currentThread())
            throw new IllegalStateException("Cannot modify disguises on an async thread");

        try {
            Object entityTrackerEntry = ReflectionManager.getEntityTrackerEntry(disguise.getEntity());

            if (entityTrackerEntry == null)
                return;

            Set trackedPlayers = (Set) ReflectionManager.getNmsField("EntityTrackerEntry", "trackedPlayers")
                    .get(entityTrackerEntry);

            // If the tracker exists. Remove himself from his tracker
            trackedPlayers = (Set) new HashSet(trackedPlayers).clone(); // Copy before iterating to prevent
                                                                        // ConcurrentModificationException

            PacketContainer destroyPacket = new PacketContainer(Server.ENTITY_DESTROY);

            destroyPacket.getIntegerArrays().write(0, new int[] {
                    disguise.getEntity().getEntityId()
            });

            for (Object p : trackedPlayers) {
                Player player = (Player) ReflectionManager.getBukkitEntity(p);

                if (player == disguise.getEntity() || disguise.canSee(player)) {
                    ProtocolLibrary.getProtocolManager().sendServerPacket(player, destroyPacket);
                }
            }
        }
        catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    public static void doBoundingBox(TargetedDisguise disguise) {
        Entity entity = disguise.getEntity();

        if (entity != null) {
            if (isDisguiseInUse(disguise)) {
                DisguiseValues disguiseValues = DisguiseValues.getDisguiseValues(disguise.getType());
                FakeBoundingBox disguiseBox = disguiseValues.getAdultBox();

                if (disguiseValues.getBabyBox() != null) {
                    if ((disguise.getWatcher() instanceof AgeableWatcher && ((AgeableWatcher) disguise.getWatcher()).isBaby())
                            || (disguise.getWatcher() instanceof ZombieWatcher
                                    && ((ZombieWatcher) disguise.getWatcher()).isBaby())) {
                        disguiseBox = disguiseValues.getBabyBox();
                    }
                }

                ReflectionManager.setBoundingBox(entity, disguiseBox);
            }
            else {
                DisguiseValues entityValues = DisguiseValues.getDisguiseValues(DisguiseType.getType(entity.getType()));

                FakeBoundingBox entityBox = entityValues.getAdultBox();

                if (entityValues.getBabyBox() != null) {
                    if ((entity instanceof Ageable && !((Ageable) entity).isAdult())
                            || (entity instanceof Zombie && ((Zombie) entity).isBaby())) {
                        entityBox = entityValues.getBabyBox();
                    }
                }

                ReflectionManager.setBoundingBox(entity, entityBox);
            }
        }
    }

    public static HashSet<String> getAddedByPlugins() {
        return addedByPlugins;
    }

    public static int getChunkCord(int blockCord) {
        int cord = (int) Math.floor(blockCord / 16D) - 17;

        cord -= (cord % 8);

        return cord;
    }

    public static PacketContainer[] getBedChunkPacket(Location newLoc, Location oldLoc) {
        int i = 0;

        PacketContainer[] packets = new PacketContainer[(newLoc != null ? 1 : 0) + (oldLoc != null ? 1 : 0)];

        if (oldLoc != null) {
            PacketContainer despawn = new PacketContainer(Server.UNLOAD_CHUNK);

            StructureModifier<Object> modifier = despawn.getModifier();

            modifier.write(0, getChunkCord(oldLoc.getBlockX()));
            modifier.write(1, getChunkCord(oldLoc.getBlockZ()));

            packets[i++] = despawn;
        }

        if (newLoc != null) {
            PacketContainer spawn = spawnChunk.shallowClone();

            StructureModifier<Object> modifier = spawn.getModifier();

            modifier.write(0, getChunkCord(newLoc.getBlockX()));
            modifier.write(1, getChunkCord(newLoc.getBlockZ()));

            packets[i++] = spawn;
        }

        return packets;
    }

    public static PacketContainer[] getBedPackets(Location sleepingLocation, Location playerLocation, PlayerDisguise disguise) {
        int entity = disguise.getEntity().getEntityId();
        PlayerWatcher watcher = disguise.getWatcher();

        PacketContainer setBed = new PacketContainer(Server.BED);

        int bX = (getChunkCord(playerLocation.getBlockX()) * 16) + 1 + watcher.getSleepingDirection().getModX();
        int bZ = (getChunkCord(playerLocation.getBlockZ()) * 16) + 1 + watcher.getSleepingDirection().getModZ();

        setBed.getIntegers().write(0, entity);
        setBed.getBlockPositionModifier().write(0, new BlockPosition(bX, 0, bZ));

        PacketContainer teleport = new PacketContainer(Server.ENTITY_TELEPORT);

        StructureModifier<Double> doubles = teleport.getDoubles();

        teleport.getIntegers().write(0, entity);

        doubles.write(0, sleepingLocation.getX());
        doubles.write(1, PacketsManager.getYModifier(disguise.getEntity(), disguise) + sleepingLocation.getY());
        doubles.write(2, sleepingLocation.getZ());

        return new PacketContainer[] {
                setBed, teleport
        };
    }

    public static Disguise getClonedDisguise(String key) {
        if (clonedDisguises.containsKey(key)) {
            return clonedDisguises.get(key).clone();
        }

        return null;
    }

    public static PacketContainer getDestroyPacket(int... ids) {
        PacketContainer destroyPacket = new PacketContainer(Server.ENTITY_DESTROY);

        destroyPacket.getIntegerArrays().write(0, ids);

        return destroyPacket;
    }

    public static TargetedDisguise getDisguise(Player observer, Entity entity) {
        UUID entityId = entity.getUniqueId();

        if (futureDisguises.containsKey(entity.getEntityId())) {
            for (TargetedDisguise disguise : futureDisguises.remove(entity.getEntityId())) {
                addDisguise(entityId, disguise);
            }
        }

        if (getDisguises().containsKey(entityId)) {
            for (TargetedDisguise disguise : getDisguises().get(entityId)) {
                if (disguise.canSee(observer)) {
                    return disguise;
                }
            }
        }

        return null;
    }

    public static HashMap<UUID, HashSet<TargetedDisguise>> getDisguises() {
        return disguisesInUse;
    }

    public static TargetedDisguise[] getDisguises(UUID entityId) {
        if (getDisguises().containsKey(entityId)) {
            HashSet<TargetedDisguise> disguises = getDisguises().get(entityId);

            return disguises.toArray(new TargetedDisguise[disguises.size()]);
        }

        return new TargetedDisguise[0];
    }

    public static HashMap<Integer, HashSet<TargetedDisguise>> getFutureDisguises() {
        return futureDisguises;
    }

    public static WrappedGameProfile getGameProfile(String playerName) {
        return gameProfiles.get(playerName.toLowerCase());
    }

    public static HashMap<String, WrappedGameProfile> getGameProfiles() {
        return gameProfiles;
    }

    public static TargetedDisguise getMainDisguise(UUID entityId) {
        TargetedDisguise toReturn = null;

        if (getDisguises().containsKey(entityId)) {
            for (TargetedDisguise disguise : getDisguises().get(entityId)) {
                if (disguise.getDisguiseTarget() == TargetType.SHOW_TO_EVERYONE_BUT_THESE_PLAYERS) {
                    return disguise;
                }

                toReturn = disguise;
            }
        }

        return toReturn;
    }

    /**
     * Get all EntityPlayers who have this entity in their Entity Tracker And they are in the targeted disguise.
     *
     * @param disguise
     * @return
     */
    public static List<Player> getPerverts(Disguise disguise) {
        if (mainThread != Thread.currentThread())
            throw new IllegalStateException("Cannot modify disguises on an async thread");

        if (disguise.getEntity() == null)
            throw new IllegalStateException("The entity for the disguisetype " + disguise.getType().name() + " is null!");

        List<Player> players = new ArrayList<>();

        try {
            Object entityTrackerEntry = ReflectionManager.getEntityTrackerEntry(disguise.getEntity());

            if (entityTrackerEntry != null) {
                Set trackedPlayers = (Set) ReflectionManager.getNmsField("EntityTrackerEntry", "trackedPlayers")
                        .get(entityTrackerEntry);
                trackedPlayers = (Set) new HashSet(trackedPlayers).clone(); // Copy before iterating to prevent
                                                                            // ConcurrentModificationException
                for (Object p : trackedPlayers) {
                    Player player = (Player) ReflectionManager.getBukkitEntity(p);

                    if (((TargetedDisguise) disguise).canSee(player)) {
                        players.add(player);
                    }
                }
            }
        }
        catch (Exception ex) {
            ex.printStackTrace();
        }

        return players;
    }

    public static WrappedGameProfile getProfileFromMojang(final PlayerDisguise disguise) {
        final String nameToFetch = disguise.getSkin() != null ? disguise.getSkin() : disguise.getName();

        final boolean remove = getAddedByPlugins().contains(nameToFetch.toLowerCase());

        return getProfileFromMojang(nameToFetch, new LibsProfileLookup() {

            @Override
            public void onLookup(WrappedGameProfile gameProfile) {
                if (remove) {
                    getAddedByPlugins().remove(nameToFetch.toLowerCase());
                }

                if (DisguiseAPI.isDisguiseInUse(disguise)
                        && (!gameProfile.getName().equals(disguise.getSkin() != null ? disguise.getSkin() : disguise.getName())
                                || !gameProfile.getProperties().isEmpty())) {
                    disguise.setGameProfile(gameProfile);

                    DisguiseUtilities.refreshTrackers(disguise);
                }
            }
        }, LibsDisguises.getInstance().getConfig().getBoolean("ContactMojangServers", true));
    }

    /**
     * Pass in a set, check if it's a hashset. If it's not, return false. If you pass in something else, you failed.
     *
     * @param obj
     * @return
     */
    private static boolean isHashSet(Object obj) {
        if (obj instanceof HashSet)
            return true; // It's Spigot/Bukkit

        if (obj instanceof Set)
            return false; // It's PaperSpigot/SportsBukkit

        throw new IllegalArgumentException("Object passed was not either a hashset or set!");
    }

    /**
     * Thread safe to use. This returns a GameProfile. And if its GameProfile doesn't have a skin blob. Then it does a lookup
     * using schedulers. The runnable is run once the GameProfile has been successfully dealt with
     */
    public static WrappedGameProfile getProfileFromMojang(String playerName, LibsProfileLookup runnableIfCantReturn) {
        return getProfileFromMojang(playerName, (Object) runnableIfCantReturn, true);
    }

    /**
     * Thread safe to use. This returns a GameProfile. And if its GameProfile doesn't have a skin blob. Then it does a lookup
     * using schedulers. The runnable is run once the GameProfile has been successfully dealt with
     */
    public static WrappedGameProfile getProfileFromMojang(String playerName, LibsProfileLookup runnableIfCantReturn,
            boolean contactMojang) {
        return getProfileFromMojang(playerName, (Object) runnableIfCantReturn, contactMojang);
    }

    private static WrappedGameProfile getProfileFromMojang(final String origName, final Object runnable, boolean contactMojang) {
        final String playerName = origName.toLowerCase();

        if (gameProfiles.containsKey(playerName)) {
            if (gameProfiles.get(playerName) != null) {
                return gameProfiles.get(playerName);
            }
        }
        else if (Pattern.matches("([A-Za-z0-9_]){1,16}", origName)) {
            getAddedByPlugins().add(playerName);

            Player player = Bukkit.getPlayerExact(playerName);

            if (player != null) {
                WrappedGameProfile gameProfile = ReflectionManager.getGameProfile(player);

                if (!gameProfile.getProperties().isEmpty()) {
                    gameProfiles.put(playerName, gameProfile);

                    return gameProfile;
                }
            }

            if (contactMojang) {
                // Add null so that if this is called again. I already know I'm doing something about it
                gameProfiles.put(playerName, null);

                Bukkit.getScheduler().runTaskAsynchronously(libsDisguises, new Runnable() {
                    @Override
                    public void run() {
                        try {
                            final WrappedGameProfile gameProfile = lookupGameProfile(origName);

                            Bukkit.getScheduler().runTask(libsDisguises, new Runnable() {
                                @Override
                                public void run() {
                                    if (gameProfile.getProperties().isEmpty()) {
                                        return;
                                    }

                                    if (gameProfiles.containsKey(playerName) && gameProfiles.get(playerName) == null) {
                                        gameProfiles.put(playerName, gameProfile);
                                    }

                                    if (runnables.containsKey(playerName)) {
                                        for (Object obj : runnables.remove(playerName)) {
                                            if (obj instanceof Runnable) {
                                                ((Runnable) obj).run();
                                            }
                                            else if (obj instanceof LibsProfileLookup) {
                                                ((LibsProfileLookup) obj).onLookup(gameProfile);
                                            }
                                        }
                                    }
                                }
                            });
                        }
                        catch (Exception e) {
                            if (gameProfiles.containsKey(playerName) && gameProfiles.get(playerName) == null) {
                                gameProfiles.remove(playerName);
                                getAddedByPlugins().remove(playerName);
                            }

                            System.out.print("[LibsDisguises] Error when fetching " + playerName + "'s uuid from mojang: "
                                    + e.getMessage());
                        }
                    }
                });
            }
        }
        else {
            return ReflectionManager.getGameProfile(null, origName);
        }

        if (runnable != null) {
            if (!runnables.containsKey(playerName)) {
                runnables.put(playerName, new ArrayList<>());
            }

            runnables.get(playerName).add(runnable);
        }

        return null;
    }

    /**
     * Thread safe to use. This returns a GameProfile. And if its GameProfile doesn't have a skin blob. Then it does a lookup
     * using schedulers. The runnable is run once the GameProfile has been successfully dealt with
     */
    public static WrappedGameProfile getProfileFromMojang(String playerName, Runnable runnableIfCantReturn) {
        return getProfileFromMojang(playerName, (Object) runnableIfCantReturn, true);
    }

    /**
     * Thread safe to use. This returns a GameProfile. And if its GameProfile doesn't have a skin blob. Then it does a lookup
     * using schedulers. The runnable is run once the GameProfile has been successfully dealt with
     */
    public static WrappedGameProfile getProfileFromMojang(String playerName, Runnable runnableIfCantReturn,
            boolean contactMojang) {
        return getProfileFromMojang(playerName, (Object) runnableIfCantReturn, contactMojang);
    }

    public static HashSet<UUID> getSelfDisguised() {
        return selfDisguised;
    }

    public static boolean hasGameProfile(String playerName) {
        return getGameProfile(playerName) != null;
    }

    public static void init(LibsDisguises disguises) {
        libsDisguises = disguises;
    }

    public static boolean isDisguiseInUse(Disguise disguise) {
        return disguise.getEntity() != null && getDisguises().containsKey(disguise.getEntity().getUniqueId())
                && getDisguises().get(disguise.getEntity().getUniqueId()).contains(disguise);
    }

    /**
     * This is called on a thread as it is thread blocking
     */
    public static WrappedGameProfile lookupGameProfile(String playerName) {
        return ReflectionManager.getSkullBlob(ReflectionManager.grabProfileAddUUID(playerName));
    }

    /**
     * Resends the entity to this specific player
     */
    public static void refreshTracker(final TargetedDisguise disguise, String player) {
        if (mainThread != Thread.currentThread())
            throw new IllegalStateException("Cannot modify disguises on an async thread");

        if (disguise.getEntity() == null || !disguise.getEntity().isValid())
            return;

        try {
            PacketContainer destroyPacket = getDestroyPacket(disguise.getEntity().getEntityId());

            if (disguise.isDisguiseInUse() && disguise.getEntity() instanceof Player
                    && disguise.getEntity().getName().equalsIgnoreCase(player)) {
                removeSelfDisguise((Player) disguise.getEntity());

                if (disguise.isSelfDisguiseVisible()) {
                    selfDisguised.add(disguise.getEntity().getUniqueId());
                }

                ProtocolLibrary.getProtocolManager().sendServerPacket((Player) disguise.getEntity(), destroyPacket);

                Bukkit.getScheduler().scheduleSyncDelayedTask(libsDisguises, new Runnable() {
                    @Override
                    public void run() {
                        try {
                            DisguiseUtilities.sendSelfDisguise((Player) disguise.getEntity(), disguise);
                        }
                        catch (Exception ex) {
                            ex.printStackTrace();
                        }
                    }
                }, 2);
            }
            else {
                final Object entityTrackerEntry = ReflectionManager.getEntityTrackerEntry(disguise.getEntity());

                if (entityTrackerEntry == null)
                    return;

                Set trackedPlayers = (Set) ReflectionManager.getNmsField("EntityTrackerEntry", "trackedPlayers")
                        .get(entityTrackerEntry);

                Method clear = ReflectionManager.getNmsMethod("EntityTrackerEntry", "clear",
                        ReflectionManager.getNmsClass("EntityPlayer"));

                final Method updatePlayer = ReflectionManager.getNmsMethod("EntityTrackerEntry", "updatePlayer",
                        ReflectionManager.getNmsClass("EntityPlayer"));

                trackedPlayers = (Set) new HashSet(trackedPlayers).clone(); // Copy before iterating to prevent
                                                                            // ConcurrentModificationException
                for (final Object p : trackedPlayers) {
                    Player pl = (Player) ReflectionManager.getBukkitEntity(p);

                    if (!player.equalsIgnoreCase((pl).getName()))
                        continue;

                    clear.invoke(entityTrackerEntry, p);

                    ProtocolLibrary.getProtocolManager().sendServerPacket(pl, destroyPacket);

                    Bukkit.getScheduler().scheduleSyncDelayedTask(libsDisguises, new Runnable() {

                        @Override
                        public void run() {
                            try {
                                updatePlayer.invoke(entityTrackerEntry, p);
                            }
                            catch (Exception ex) {
                                ex.printStackTrace();
                            }
                        }
                    }, 2);
                    break;
                }
            }
        }
        catch (

        Exception ex)

        {
            ex.printStackTrace();
        }
    }

    /**
     * A convenience method for me to refresh trackers in other plugins
     */
    public static void refreshTrackers(Entity entity) {
        if (mainThread != Thread.currentThread())
            throw new IllegalStateException("Cannot modify disguises on an async thread");

        if (entity.isValid()) {
            try {
                PacketContainer destroyPacket = getDestroyPacket(entity.getEntityId());

                final Object entityTrackerEntry = ReflectionManager.getEntityTrackerEntry(entity);

                if (entityTrackerEntry != null) {
                    Set trackedPlayers = (Set) ReflectionManager.getNmsField("EntityTrackerEntry", "trackedPlayers")
                            .get(entityTrackerEntry);

                    Method clear = ReflectionManager.getNmsMethod("EntityTrackerEntry", "clear",
                            ReflectionManager.getNmsClass("EntityPlayer"));

                    final Method updatePlayer = ReflectionManager.getNmsMethod("EntityTrackerEntry", "updatePlayer",
                            ReflectionManager.getNmsClass("EntityPlayer"));

                    trackedPlayers = (Set) new HashSet(trackedPlayers).clone(); // Copy before iterating to prevent
                                                                                // ConcurrentModificationException
                    for (final Object p : trackedPlayers) {
                        Player player = (Player) ReflectionManager.getBukkitEntity(p);

                        if (player != entity) {
                            clear.invoke(entityTrackerEntry, p);

                            ProtocolLibrary.getProtocolManager().sendServerPacket(player, destroyPacket);

                            Bukkit.getScheduler().scheduleSyncDelayedTask(libsDisguises, new Runnable() {
                                @Override
                                public void run() {
                                    try {
                                        updatePlayer.invoke(entityTrackerEntry, p);
                                    }
                                    catch (Exception ex) {
                                        ex.printStackTrace();
                                    }
                                }
                            }, 2);
                        }
                    }
                }
            }
            catch (Exception ex) {
                ex.printStackTrace();
            }
        }
    }

    /**
     * Resends the entity to all the watching players, which is where the magic begins
     */
    public static void refreshTrackers(final TargetedDisguise disguise) {
        if (mainThread != Thread.currentThread())
            throw new IllegalStateException("Cannot modify disguises on an async thread");

        if (disguise.getEntity().isValid()) {
            PacketContainer destroyPacket = getDestroyPacket(disguise.getEntity().getEntityId());

            try {
                if (selfDisguised.contains(disguise.getEntity().getUniqueId()) && disguise.isDisguiseInUse()) {
                    removeSelfDisguise((Player) disguise.getEntity());

                    selfDisguised.add(disguise.getEntity().getUniqueId());

                    ProtocolLibrary.getProtocolManager().sendServerPacket((Player) disguise.getEntity(), destroyPacket);

                    Bukkit.getScheduler().scheduleSyncDelayedTask(libsDisguises, new Runnable() {
                        @Override
                        public void run() {
                            try {
                                DisguiseUtilities.sendSelfDisguise((Player) disguise.getEntity(), disguise);
                            }
                            catch (Exception ex) {
                                ex.printStackTrace();
                            }
                        }
                    }, 2);
                }

                final Object entityTrackerEntry = ReflectionManager.getEntityTrackerEntry(disguise.getEntity());

                if (entityTrackerEntry != null) {
                    Set trackedPlayers = (Set) ReflectionManager.getNmsField("EntityTrackerEntry", "trackedPlayers")
                            .get(entityTrackerEntry);

                    final Method clear = ReflectionManager.getNmsMethod("EntityTrackerEntry", "clear",
                            ReflectionManager.getNmsClass("EntityPlayer"));

                    final Method updatePlayer = ReflectionManager.getNmsMethod("EntityTrackerEntry", "updatePlayer",
                            ReflectionManager.getNmsClass("EntityPlayer"));

                    trackedPlayers = (Set) new HashSet(trackedPlayers).clone();

                    for (final Object p : trackedPlayers) {
                        Player player = (Player) ReflectionManager.getBukkitEntity(p);

                        if (disguise.getEntity() != player && disguise.canSee(player)) {
                            clear.invoke(entityTrackerEntry, p);

                            ProtocolLibrary.getProtocolManager().sendServerPacket(player, destroyPacket);

                            Bukkit.getScheduler().scheduleSyncDelayedTask(libsDisguises, new Runnable() {

                                @Override
                                public void run() {
                                    try {
                                        updatePlayer.invoke(entityTrackerEntry, p);
                                    }
                                    catch (Exception ex) {
                                        ex.printStackTrace();
                                    }
                                }
                            }, 2);
                        }
                    }
                }
            }
            catch (

            Exception ex) {
                ex.printStackTrace();

            }
        }
    }

    public static boolean removeDisguise(TargetedDisguise disguise) {
        UUID entityId = disguise.getEntity().getUniqueId();

        if (getDisguises().containsKey(entityId) && getDisguises().get(entityId).remove(disguise)) {
            if (getDisguises().get(entityId).isEmpty()) {
                getDisguises().remove(entityId);
            }

            if (disguise.getDisguiseTarget() == TargetType.SHOW_TO_EVERYONE_BUT_THESE_PLAYERS && disguise.isModifyBoundingBox()) {
                doBoundingBox(disguise);
            }

            return true;
        }

        return false;
    }

    public static void removeGameProfile(String string) {
        gameProfiles.remove(string.toLowerCase());
    }

    public static void removeSelfDisguise(Player player) {
        if (mainThread != Thread.currentThread())
            throw new IllegalStateException("Cannot modify disguises on an async thread");

        if (!selfDisguised.contains(player.getUniqueId())) {
            return;
        }

        // Send a packet to destroy the fake entity
        PacketContainer packet = getDestroyPacket(DisguiseAPI.getSelfDisguiseId());

        try {
            ProtocolLibrary.getProtocolManager().sendServerPacket(player, packet);
        }
        catch (Exception ex) {
            ex.printStackTrace();
        }

        // Code to stop player pushing in 1.9
        Scoreboard scoreboard = player.getScoreboard();
        Team t;

        if ((t = scoreboard.getTeam("LDPushing")) != null) {
            t.removeEntry(player.getName());
        }

        // player.spigot().setCollidesWithEntities(true);
        // Finish up
        // Remove the fake entity ID from the disguise bin
        selfDisguised.remove(player.getUniqueId());
        // Get the entity tracker

        try {
            Object entityTrackerEntry = ReflectionManager.getEntityTrackerEntry(player);

            if (entityTrackerEntry != null) {
                Object trackedPlayersObj = ReflectionManager.getNmsField("EntityTrackerEntry", "trackedPlayers")
                        .get(entityTrackerEntry);

                // If the tracker exists. Remove himself from his tracker
                if (isHashSet(trackedPlayersObj)) {
                    ((Set<Object>) ReflectionManager.getNmsField("EntityTrackerEntry", "trackedPlayers").get(entityTrackerEntry))
                            .remove(ReflectionManager.getNmsEntity(player));
                }
                else {
                    ((Map<Object, Object>) ReflectionManager.getNmsField("EntityTrackerEntry", "trackedPlayerMap")
                            .get(entityTrackerEntry)).remove(ReflectionManager.getNmsEntity(player));
                }
            }
        }
        catch (Exception ex) {
            ex.printStackTrace();
        }

        // Resend entity metadata else he will be invisible to himself until its resent
        try {
            ProtocolLibrary.getProtocolManager().sendServerPacket(player,
                    ProtocolLibrary.getProtocolManager()
                            .createPacketConstructor(Server.ENTITY_METADATA, player.getEntityId(),
                                    WrappedDataWatcher.getEntityWatcher(player), true)
                            .createPacket(player.getEntityId(), WrappedDataWatcher.getEntityWatcher(player), true));
        }
        catch (Exception ex) {
            ex.printStackTrace();
        }

        player.updateInventory();
    }

    /**
     * Sends the self disguise to the player
     */
    public static void sendSelfDisguise(final Player player, final TargetedDisguise disguise) {
        if (mainThread != Thread.currentThread())
            throw new IllegalStateException("Cannot modify disguises on an async thread");

        try {
            if (!disguise.isDisguiseInUse() || !player.isValid() || !player.isOnline() || !disguise.isSelfDisguiseVisible()
                    || !disguise.canSee(player)) {
                return;
            }

            Object entityTrackerEntry = ReflectionManager.getEntityTrackerEntry(player);

            if (entityTrackerEntry == null) {
                // A check incase the tracker is null.
                // If it is, then this method will be run again in one tick. Which is when it should be constructed.
                // Else its going to run in a infinite loop hue hue hue..
                // At least until this disguise is discarded
                Bukkit.getScheduler().runTask(libsDisguises, new Runnable() {
                    @Override
                    public void run() {
                        if (DisguiseAPI.getDisguise(player, player) == disguise) {
                            sendSelfDisguise(player, disguise);
                        }
                    }
                });

                return;
            }

            // Code to stop player pushing
            Scoreboard scoreboard = player.getScoreboard();
            Team t;

            if ((t = scoreboard.getTeam("LDPushing")) == null) {
                t = scoreboard.registerNewTeam("LDPushing");
            }

            if (t.getOption(Option.COLLISION_RULE) != OptionStatus.NEVER) {
                t.setOption(Option.COLLISION_RULE, OptionStatus.NEVER);
                t.setCanSeeFriendlyInvisibles(false);
            }

            if (!t.hasEntry(player.getName()))
                t.addEntry(player.getName());

            // Add himself to his own entity tracker
            Object trackedPlayersObj = ReflectionManager.getNmsField("EntityTrackerEntry", "trackedPlayers")
                    .get(entityTrackerEntry);

            // Check for code differences in PaperSpigot vs Spigot
            if (isHashSet(trackedPlayersObj)) {
                ((Set<Object>) ReflectionManager.getNmsField("EntityTrackerEntry", "trackedPlayers").get(entityTrackerEntry))
                        .add(ReflectionManager.getNmsEntity(player));
            }
            else {
                ((Map<Object, Object>) ReflectionManager.getNmsField("EntityTrackerEntry", "trackedPlayerMap")
                        .get(entityTrackerEntry)).put(ReflectionManager.getNmsEntity(player), true);
            }

            ProtocolManager manager = ProtocolLibrary.getProtocolManager();
            // Send the player a packet with himself being spawned
            manager.sendServerPacket(player,
                    manager.createPacketConstructor(Server.NAMED_ENTITY_SPAWN, player).createPacket(player));

            WrappedDataWatcher dataWatcher = WrappedDataWatcher.getEntityWatcher(player);

            sendSelfPacket(player,
                    manager.createPacketConstructor(Server.ENTITY_METADATA, player.getEntityId(), dataWatcher, true)
                            .createPacket(player.getEntityId(), dataWatcher, true));

            boolean isMoving = false;

            try {
                Field field = ReflectionManager.getNmsClass("EntityTrackerEntry").getDeclaredField("isMoving");
                field.setAccessible(true);
                isMoving = field.getBoolean(entityTrackerEntry);
            }
            catch (Exception ex) {
                ex.printStackTrace();
            }

            // Send the velocity packets
            if (isMoving) {
                Vector velocity = player.getVelocity();
                sendSelfPacket(player,
                        manager.createPacketConstructor(Server.ENTITY_VELOCITY, player.getEntityId(), velocity.getX(),
                                velocity.getY(), velocity.getZ())
                        .createPacket(player.getEntityId(), velocity.getX(), velocity.getY(), velocity.getZ()));
            }

            // Why the hell would he even need this. Meh.
            if (player.getVehicle() != null && player.getEntityId() > player.getVehicle().getEntityId()) {
                sendSelfPacket(player, manager.createPacketConstructor(Server.ATTACH_ENTITY, 0, player, player.getVehicle())
                        .createPacket(0, player, player.getVehicle()));
            }
            else if (player.getPassenger() != null && player.getEntityId() > player.getPassenger().getEntityId()) {
                sendSelfPacket(player, manager.createPacketConstructor(Server.ATTACH_ENTITY, 0, player.getPassenger(), player)
                        .createPacket(0, player.getPassenger(), player));
            }

            sendSelfPacket(player,
                    manager.createPacketConstructor(Server.ENTITY_EQUIPMENT, 0,
                            ReflectionManager.createEnumItemSlot(EquipmentSlot.HEAD),
                            ReflectionManager.getNmsItem(new ItemStack(Material.STONE))).createPacket(player.getEntityId(),
                                    ReflectionManager.createEnumItemSlot(EquipmentSlot.HEAD),
                                    ReflectionManager.getNmsItem(player.getInventory().getHelmet())));
            sendSelfPacket(player,
                    manager.createPacketConstructor(Server.ENTITY_EQUIPMENT, 0,
                            ReflectionManager.createEnumItemSlot(EquipmentSlot.HEAD),
                            ReflectionManager.getNmsItem(new ItemStack(Material.STONE))).createPacket(player.getEntityId(),
                                    ReflectionManager.createEnumItemSlot(EquipmentSlot.CHEST),
                                    ReflectionManager.getNmsItem(player.getInventory().getChestplate())));
            sendSelfPacket(player,
                    manager.createPacketConstructor(Server.ENTITY_EQUIPMENT, 0,
                            ReflectionManager.createEnumItemSlot(EquipmentSlot.HEAD),
                            ReflectionManager.getNmsItem(new ItemStack(Material.STONE))).createPacket(player.getEntityId(),
                                    ReflectionManager.createEnumItemSlot(EquipmentSlot.LEGS),
                                    ReflectionManager.getNmsItem(player.getInventory().getLeggings())));
            sendSelfPacket(player,
                    manager.createPacketConstructor(Server.ENTITY_EQUIPMENT, 0,
                            ReflectionManager.createEnumItemSlot(EquipmentSlot.HEAD),
                            ReflectionManager.getNmsItem(new ItemStack(Material.STONE))).createPacket(player.getEntityId(),
                                    ReflectionManager.createEnumItemSlot(EquipmentSlot.FEET),
                                    ReflectionManager.getNmsItem(player.getInventory().getBoots())));
            sendSelfPacket(player,
                    manager.createPacketConstructor(Server.ENTITY_EQUIPMENT, 0,
                            ReflectionManager.createEnumItemSlot(EquipmentSlot.HEAD),
                            ReflectionManager.getNmsItem(new ItemStack(Material.STONE))).createPacket(player.getEntityId(),
                                    ReflectionManager.createEnumItemSlot(EquipmentSlot.HAND),
                                    ReflectionManager.getNmsItem(player.getInventory().getItemInMainHand())));
            sendSelfPacket(player,
                    manager.createPacketConstructor(Server.ENTITY_EQUIPMENT, 0,
                            ReflectionManager.createEnumItemSlot(EquipmentSlot.HEAD),
                            ReflectionManager.getNmsItem(new ItemStack(Material.STONE))).createPacket(player.getEntityId(),
                                    ReflectionManager.createEnumItemSlot(EquipmentSlot.OFF_HAND),
                                    ReflectionManager.getNmsItem(player.getInventory().getItemInOffHand())));

            Location loc = player.getLocation();

            // If the disguised is sleeping for w/e reason
            if (player.isSleeping()) {
                sendSelfPacket(player,
                        manager.createPacketConstructor(Server.BED, player, ReflectionManager.getBlockPosition(0, 0, 0))
                                .createPacket(player,
                                        ReflectionManager.getBlockPosition(loc.getBlockX(), loc.getBlockY(), loc.getBlockZ())));
            }

            // Resend any active potion effects
            for (PotionEffect potionEffect : player.getActivePotionEffects()) {
                Object mobEffect = ReflectionManager.createMobEffect(potionEffect);
                sendSelfPacket(player, manager.createPacketConstructor(Server.ENTITY_EFFECT, player.getEntityId(), mobEffect)
                        .createPacket(player.getEntityId(), mobEffect));
            }
        }
        catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    public static LibsDisguises getPlugin() {
        return libsDisguises;
    }

    /**
     * Method to send a packet to the self disguise, translate his entity ID to the fake id.
     */
    private static void sendSelfPacket(final Player player, final PacketContainer packet) {
        final Disguise disguise = DisguiseAPI.getDisguise(player, player);

        // If disguised.
        if (disguise == null) {
            return;
        }

        LibsPackets transformed = PacketsManager.transformPacket(packet, disguise, player, player);

        try {
            if (transformed.isUnhandled())
                transformed.addPacket(packet);

            transformed.setPacketType(packet.getType());

            for (PacketContainer p : transformed.getPackets()) {
                p = p.deepClone();
                p.getIntegers().write(0, DisguiseAPI.getSelfDisguiseId());
                ProtocolLibrary.getProtocolManager().sendServerPacket(player, p, false);
            }

            transformed.sendDelayed(player);
        }
        catch (InvocationTargetException e) {
            e.printStackTrace();
        }
    }

    /**
     * Setup it so he can see himself when disguised
     *
     * @param disguise
     */
    public static void setupFakeDisguise(final Disguise disguise) {
        Entity e = disguise.getEntity();

        // If the disguises entity is null, or the disguised entity isn't a player return
        if (e == null || !(e instanceof Player) || !getDisguises().containsKey(e.getUniqueId())
                || !getDisguises().get(e.getUniqueId()).contains(disguise)) {
            return;
        }

        Player player = (Player) e;

        // Check if he can even see this..
        if (!((TargetedDisguise) disguise).canSee(player)) {
            return;
        }

        // Remove the old disguise, else we have weird disguises around the place
        DisguiseUtilities.removeSelfDisguise(player);

        // If the disguised player can't see himself. Return
        if (!disguise.isSelfDisguiseVisible() || !PacketsManager.isViewDisguisesListenerEnabled()
                || player.getVehicle() != null) {
            return;
        }

        // player.spigot().setCollidesWithEntities(false);
        // Finish up
        selfDisguised.add(player.getUniqueId());

        sendSelfDisguise(player, (TargetedDisguise) disguise);

        if (disguise.isHidingArmorFromSelf() || disguise.isHidingHeldItemFromSelf()) {
            if (PacketsManager.isInventoryListenerEnabled()) {
                player.updateInventory();
            }
        }
    }
}