package fr.dorvak.ia.npc;

import java.util.List;
import java.util.UUID;

import org.bukkit.Location;
import org.bukkit.craftbukkit.v1_8_R3.util.CraftChatMessage;
import org.bukkit.inventory.ItemStack;

import com.mojang.authlib.GameProfile;
import com.mojang.authlib.properties.Property;

import fr.dorvak.ia.utils.Reflections;
import net.minecraft.server.v1_8_R3.DataWatcher;
import net.minecraft.server.v1_8_R3.MathHelper;
import net.minecraft.server.v1_8_R3.PacketPlayOutAnimation;
import net.minecraft.server.v1_8_R3.PacketPlayOutEntity.PacketPlayOutEntityLook;
import net.minecraft.server.v1_8_R3.PacketPlayOutEntityDestroy;
import net.minecraft.server.v1_8_R3.PacketPlayOutEntityEquipment;
import net.minecraft.server.v1_8_R3.PacketPlayOutEntityHeadRotation;
import net.minecraft.server.v1_8_R3.PacketPlayOutEntityStatus;
import net.minecraft.server.v1_8_R3.PacketPlayOutEntityTeleport;
import net.minecraft.server.v1_8_R3.PacketPlayOutNamedEntitySpawn;
import net.minecraft.server.v1_8_R3.PacketPlayOutPlayerInfo;
import net.minecraft.server.v1_8_R3.WorldSettings.EnumGamemode;

public class NPC extends Reflections {

    private int entityID;
    private GameProfile gameProfile;
    private Location loc;

    public NPC(String name, Location loc) {
        entityID = (int)Math.ceil(Math.random() * 1000) + 2000;
        gameProfile = new GameProfile(UUID.randomUUID(), name);
        this.loc = loc.clone();
    }

    public void loadSkin(String value, String signature) {
        gameProfile.getProperties().put("textures", new Property("textures", value, signature));
    }

    public void animate(int animation) {
        PacketPlayOutAnimation packet = new PacketPlayOutAnimation();
        setValue(packet, "a", entityID);
        setValue(packet, "b", (byte)animation);
        sendPacket(packet);
    }

    public void status(int status) {
        PacketPlayOutEntityStatus packet = new PacketPlayOutEntityStatus();
        setValue(packet, "a", entityID);
        setValue(packet, "b", (byte)status);
        sendPacket(packet);
    }

    public void equip(int slot, ItemStack item) {
        PacketPlayOutEntityEquipment packet = new PacketPlayOutEntityEquipment();

        setValue(packet, "a", entityID);
        setValue(packet, "b", slot);
        setValue(packet, "c", item);
        sendPacket(packet);
    }

    public void spawn() {
        PacketPlayOutNamedEntitySpawn packet = new PacketPlayOutNamedEntitySpawn();

        setValue(packet, "a", entityID);
        setValue(packet, "b", gameProfile.getId());
        setValue(packet, "c", getFixLocation(loc.getX()));
        setValue(packet, "d", getFixLocation(loc.getY()));
        setValue(packet, "e", getFixLocation(loc.getZ()));
        setValue(packet, "f", getFixRotation(loc.getYaw()));
        setValue(packet, "g", getFixRotation(loc.getPitch()));
        setValue(packet, "h", 0);
        DataWatcher watcher = new DataWatcher(null);
        watcher.a(6, (float)20);
        watcher.a(10, (byte)127);
        setValue(packet, "i", watcher);
        addToTabList();
        sendPacket(packet);
        headRotation(loc.getYaw(), loc.getPitch());
    }

    public void teleport(Location loc) {
        PacketPlayOutEntityTeleport packet = new PacketPlayOutEntityTeleport();
        setValue(packet, "a", entityID);
        setValue(packet, "b", getFixLocation(loc.getX()));
        setValue(packet, "c", getFixLocation(loc.getY()));
        setValue(packet, "d", getFixLocation(loc.getZ()));
        setValue(packet, "e", getFixRotation(loc.getYaw()));
        setValue(packet,"f", getFixRotation(loc.getPitch()));

        sendPacket(packet);
        headRotation(loc.getYaw(), loc.getPitch());
        this.loc = loc.clone();
    }

    public void headRotation(float yaw, float pitch) {
        PacketPlayOutEntityLook packet = new PacketPlayOutEntityLook(entityID, getFixRotation(yaw), getFixRotation(pitch), true);

        PacketPlayOutEntityHeadRotation headPacket = new PacketPlayOutEntityHeadRotation();
        setValue(headPacket, "a", entityID);
        setValue(headPacket, "b", getFixRotation(yaw));

        sendPacket(packet);
        sendPacket(headPacket);
    }

    public void kill() {
        PacketPlayOutEntityDestroy packet = new PacketPlayOutEntityDestroy(new int[] {entityID});
        removeFromTabList();
        sendPacket(packet);
    }

    public void addToTabList() {
        PacketPlayOutPlayerInfo packet = new PacketPlayOutPlayerInfo();
        PacketPlayOutPlayerInfo.PlayerInfoData data = packet.new PlayerInfoData(gameProfile, 1, EnumGamemode.NOT_SET, CraftChatMessage.fromString(gameProfile.getName())[0]);

        @SuppressWarnings("unchecked")
        List<PacketPlayOutPlayerInfo.PlayerInfoData> players = (List<PacketPlayOutPlayerInfo.PlayerInfoData>) getValue(packet, "b");
        players.add(data);

        setValue(packet, "a", PacketPlayOutPlayerInfo.EnumPlayerInfoAction.ADD_PLAYER);
        setValue(packet, "b", players);
        sendPacket(packet);
    }

    public void removeFromTabList() {
        PacketPlayOutPlayerInfo packet = new PacketPlayOutPlayerInfo();
        PacketPlayOutPlayerInfo.PlayerInfoData data = packet.new PlayerInfoData(gameProfile, 1, EnumGamemode.NOT_SET, CraftChatMessage.fromString(gameProfile.getName())[0]);

        @SuppressWarnings("unchecked")
        List<PacketPlayOutPlayerInfo.PlayerInfoData> players = (List<PacketPlayOutPlayerInfo.PlayerInfoData>) getValue(packet, "b");
        players.add(data);

        setValue(packet, "a", PacketPlayOutPlayerInfo.EnumPlayerInfoAction.REMOVE_PLAYER);
        setValue(packet, "b", players);
        sendPacket(packet);
    }

    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 entityID;
    }

    public Location getLocation() {
        return loc;
    }
}