package resonantinduction.mechanical.belt;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import net.minecraft.entity.Entity;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.network.packet.Packet;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.AxisAlignedBB;
import net.minecraftforge.common.ForgeDirection;
import resonantinduction.core.ResonantInduction;
import resonantinduction.old.api.IBelt;
import resonantinduction.old.core.recipe.RecipeLoader;
import resonantinduction.old.transport.TileEntityAssembly;
import universalelectricity.api.vector.Vector3;
import calclavia.lib.network.PacketHandler;
import calclavia.lib.prefab.tile.IRotatable;

import com.google.common.io.ByteArrayDataInput;

import cpw.mods.fml.common.network.Player;

/**
 * Conveyer belt TileEntity that allows entities of all kinds to be moved
 * 
 * @author DarkGuardsman
 */
public class TileConveyorBelt extends TileEntityAssembly implements IBelt, IRotatable
{

	public enum SlantType
	{
		NONE, UP, DOWN, TOP
	}

	public static final int MAX_FRAME = 13;
	public static final int MAX_SLANT_FRAME = 23;
	/** Packet name to ID the packet containing info on the angle of the belt */
	public static final String slantPacketID = "slantPacket";
	/** Acceleration of entities on the belt */
	public final float acceleration = 0.01f;
	/** max speed of entities on the belt */
	public final float maxSpeed = 0.1f;
	/** Current rotation of the model wheels */
	public float wheelRotation = 0;
	/** Frame count for texture animation from 0 - maxFrame */
	private int animFrame = 0;
	private SlantType slantType = SlantType.NONE;
	/** Entities that are ignored allowing for other tiles to interact with them */
	public List<Entity> IgnoreList = new ArrayList<Entity>();

	public TileConveyorBelt()
	{
		super(1);
	}

	@Override
	public void updateEntity()
	{
		super.updateEntity();
		/* PROCESSES IGNORE LIST AND REMOVES UNNEED ENTRIES */
		Iterator<Entity> it = this.IgnoreList.iterator();
		while (it.hasNext())
		{
			if (!this.getAffectedEntities().contains(it.next()))
			{
				it.remove();
			}
		}
		if (this.worldObj.isRemote && this.isFunctioning())
		{
			if (this.ticks % 10 == 0 && this.worldObj.isRemote && this.worldObj.getBlockId(this.xCoord - 1, this.yCoord, this.zCoord) != RecipeLoader.blockConveyorBelt.blockID && this.worldObj.getBlockId(xCoord, yCoord, zCoord - 1) != RecipeLoader.blockConveyorBelt.blockID)
			{
				this.worldObj.playSound(this.xCoord, this.yCoord, this.zCoord, "mods.assemblyline.conveyor", 0.5f, 0.7f, true);
			}
			this.wheelRotation = (40 + this.wheelRotation) % 360;

			float wheelRotPct = wheelRotation / 360f;

			// Sync the animation. Slant belts are slower.
			if (this.getSlant() == SlantType.NONE || this.getSlant() == SlantType.TOP)
			{
				this.animFrame = (int) (wheelRotPct * MAX_FRAME);
				if (this.animFrame < 0)
					this.animFrame = 0;
				if (this.animFrame > MAX_FRAME)
					this.animFrame = MAX_FRAME;
			}
			else
			{
				this.animFrame = (int) (wheelRotPct * MAX_SLANT_FRAME);
				if (this.animFrame < 0)
					this.animFrame = 0;
				if (this.animFrame > MAX_SLANT_FRAME)
					this.animFrame = MAX_SLANT_FRAME;
			}
		}

	}

	@Override
	public boolean canFunction()
	{
		return super.canFunction() && !this.worldObj.isBlockIndirectlyGettingPowered(this.xCoord, this.yCoord, this.zCoord);
	}

	@Override
	public Packet getDescriptionPacket()
	{
		if (this.slantType != SlantType.NONE)
		{
			return ResonantInduction.PACKET_TILE.getPacket(this, slantPacketID, this.isFunctioning(), this.slantType.ordinal());
		}
		return super.getDescriptionPacket();
	}

	@Override
	public boolean simplePacket(String id, ByteArrayDataInput dis, Player player)
	{
		if (!super.simplePacket(id, dis, player) && this.worldObj.isRemote)
		{
			try
			{
				if (id.equalsIgnoreCase(slantPacketID))
				{
					this.functioning = dis.readBoolean();
					this.slantType = SlantType.values()[dis.readInt()];
					return true;
				}
			}
			catch (Exception e)
			{
				e.printStackTrace();
			}
		}
		return false;
	}

	public SlantType getSlant()
	{
		return slantType;
	}

	public void setSlant(SlantType slantType)
	{
		if (slantType == null)
		{
			slantType = SlantType.NONE;
		}
		this.slantType = slantType;
		this.worldObj.markBlockForUpdate(xCoord, yCoord, zCoord);
	}

	@Override
	public void setDirection(ForgeDirection facingDirection)
	{
		this.worldObj.setBlockMetadataWithNotify(this.xCoord, this.yCoord, this.zCoord, facingDirection.ordinal(), 3);
	}

	@Override
	public ForgeDirection getDirection()
	{
		return ForgeDirection.getOrientation(this.getBlockMetadata());
	}

	@Override
	public List<Entity> getAffectedEntities()
	{
		return worldObj.getEntitiesWithinAABB(Entity.class, AxisAlignedBB.getBoundingBox(this.xCoord, this.yCoord, this.zCoord, this.xCoord + 1, this.yCoord + 1, this.zCoord + 1));
	}

	public int getAnimationFrame()
	{
		return this.animFrame;
	}

	/** NBT Data */
	@Override
	public void readFromNBT(NBTTagCompound nbt)
	{
		super.readFromNBT(nbt);
		this.slantType = SlantType.values()[nbt.getByte("slant")];
	}

	/** Writes a tile entity to NBT. */
	@Override
	public void writeToNBT(NBTTagCompound nbt)
	{
		super.writeToNBT(nbt);
		nbt.setByte("slant", (byte) this.slantType.ordinal());
	}

	@Override
	public void ignoreEntity(Entity entity)
	{
		if (!this.IgnoreList.contains(entity))
		{
			this.IgnoreList.add(entity);
		}
	}

	@Override
	public boolean canConnect(ForgeDirection direction)
	{
		return direction == ForgeDirection.DOWN;
	}

	@Override
	public void refresh()
	{
		super.refresh();
		if (this.worldObj != null && !this.worldObj.isRemote)
		{
			Vector3 face = new Vector3(this).modifyPositionFromSide(this.getDirection());
			Vector3 back = new Vector3(this).modifyPositionFromSide(this.getDirection().getOpposite());
			TileEntity front, rear;
			if (this.slantType == SlantType.DOWN)
			{
				face.translate(new Vector3(0, -1, 0));
				back.translate(new Vector3(0, 1, 0));
			}
			else if (this.slantType == SlantType.UP)
			{
				face.translate(new Vector3(0, 1, 0));
				back.translate(new Vector3(0, -1, 0));
			}
			else
			{
				return;
			}
			front = face.getTileEntity(this.worldObj);
			rear = back.getTileEntity(this.worldObj);
			if (front instanceof TileEntityAssembly)
			{
				this.getTileNetwork().mergeNetwork(((TileEntityAssembly) front).getTileNetwork(), this);
				this.connectedTiles.add(front);
			}
			if (rear instanceof TileEntityAssembly)
			{
				this.getTileNetwork().mergeNetwork(((TileEntityAssembly) rear).getTileNetwork(), this);
				this.connectedTiles.add(rear);
			}

		}
	}

	@Override
	public int getWattLoad()
	{
		return 5;
	}

}