package com.hbm.packet;

import java.io.IOException;

import com.hbm.tileentity.TileEntityMachineBase;
import com.hbm.tileentity.TileEntityTickingBase;

import cpw.mods.fml.common.network.simpleimpl.IMessage;
import cpw.mods.fml.common.network.simpleimpl.IMessageHandler;
import cpw.mods.fml.common.network.simpleimpl.MessageContext;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import net.minecraft.client.Minecraft;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.network.PacketBuffer;
import net.minecraft.tileentity.TileEntity;

public class NBTPacket implements IMessage {
	
	PacketBuffer buffer;
	int x;
	int y;
	int z;

	public NBTPacket() { }

	public NBTPacket(NBTTagCompound nbt, int x, int y, int z) {
		
		this.buffer = new PacketBuffer(Unpooled.buffer());
		this.x = x;
		this.y = y;
		this.z = z;
		
		try {
			buffer.writeNBTTagCompoundToBuffer(nbt);
			
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	@Override
	public void fromBytes(ByteBuf buf) {
		
		x = buf.readInt();
		y = buf.readInt();
		z = buf.readInt();
		
		if (buffer == null) {
			buffer = new PacketBuffer(Unpooled.buffer());
		}
		buffer.writeBytes(buf);
	}

	@Override
	public void toBytes(ByteBuf buf) {
		
		buf.writeInt(x);
		buf.writeInt(y);
		buf.writeInt(z);
		
		if (buffer == null) {
			buffer = new PacketBuffer(Unpooled.buffer());
		}
		buf.writeBytes(buffer);
	}

	public static class Handler implements IMessageHandler<NBTPacket, IMessage> {
		
		@Override
		public IMessage onMessage(NBTPacket m, MessageContext ctx) {
			
			if(Minecraft.getMinecraft().theWorld == null)
				return null;
			
			TileEntity te = Minecraft.getMinecraft().theWorld.getTileEntity(m.x, m.y, m.z);
			
			try {
				
				NBTTagCompound nbt = m.buffer.readNBTTagCompoundFromBuffer();
				
				if(nbt != null) {
					if(te instanceof TileEntityMachineBase)
						((TileEntityMachineBase) te).networkUnpack(nbt);
					if(te instanceof TileEntityTickingBase)
						((TileEntityTickingBase) te).networkUnpack(nbt);
				}
				
			} catch (IOException e) {
				e.printStackTrace();
			}
			
			return null;
		}
	}

}