/*
 * This file is part of Applied Energistics 2.
 * Copyright (c) 2013 - 2014, AlgorithmX2, All rights reserved.
 *
 * Applied Energistics 2 is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Applied Energistics 2 is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Applied Energistics 2.  If not, see <http://www.gnu.org/licenses/lgpl>.
 */

package appeng.client.render.cablebus;


import java.util.ArrayList;
import java.util.EnumMap;
import java.util.EnumSet;
import java.util.List;
import java.util.Objects;

import net.minecraft.util.EnumFacing;
import net.minecraft.util.math.AxisAlignedBB;

import appeng.api.parts.IPartModel;
import appeng.api.util.AECableType;
import appeng.api.util.AEColor;


/**
 * This class captures the entire rendering state needed for a cable bus and transports it to the rendering thread
 * for processing.
 */
public class CableBusRenderState
{

	// The cable type used for rendering the outgoing connections to other blocks and attached parts
	private AECableType cableType = AECableType.NONE;

	// The type to use for rendering the core of the cable.
	private CableCoreType coreType;

	private AEColor cableColor = AEColor.TRANSPARENT;

	// Describes the outgoing connections of this cable bus to other blocks, and how they should be rendered
	private EnumMap<EnumFacing, AECableType> connectionTypes = new EnumMap<>( EnumFacing.class );

	// Indicate on which sides signified by connectionTypes above, there is another cable bus. If a side is connected,
	// but it is absent from this
	// set, then it means that there is a Grid host, but not a cable bus on that side (i.e. an interface, a controller,
	// etc.)
	private EnumSet<EnumFacing> cableBusAdjacent = EnumSet.noneOf( EnumFacing.class );

	// Specifies the number of channels used for the connection to a given side. Only contains entries if
	// connections contains a corresponding entry.
	private EnumMap<EnumFacing, Integer> channelsOnSide = new EnumMap<>( EnumFacing.class );

	private EnumMap<EnumFacing, IPartModel> attachments = new EnumMap<>( EnumFacing.class );

	// For each attachment, this contains the distance from the edge until which a cable connection should be drawn
	private EnumMap<EnumFacing, Integer> attachmentConnections = new EnumMap<>( EnumFacing.class );

	// Contains the facade to use for each side that has a facade attached
	private EnumMap<EnumFacing, FacadeRenderState> facades = new EnumMap<>( EnumFacing.class );

	// Contains the bounding boxes of all parts on the cable bus to allow facades to cut out holes for the parts. This
	// list is only populated if there are
	// facades on this cable bus
	private List<AxisAlignedBB> boundingBoxes = new ArrayList<>();

	public CableCoreType getCoreType()
	{
		return this.coreType;
	}

	public void setCoreType( CableCoreType coreType )
	{
		this.coreType = coreType;
	}

	public AECableType getCableType()
	{
		return this.cableType;
	}

	public void setCableType( AECableType cableType )
	{
		this.cableType = cableType;
	}

	public AEColor getCableColor()
	{
		return this.cableColor;
	}

	public void setCableColor( AEColor cableColor )
	{
		this.cableColor = cableColor;
	}

	public EnumMap<EnumFacing, Integer> getChannelsOnSide()
	{
		return this.channelsOnSide;
	}

	public EnumMap<EnumFacing, AECableType> getConnectionTypes()
	{
		return this.connectionTypes;
	}

	public void setConnectionTypes( EnumMap<EnumFacing, AECableType> connectionTypes )
	{
		this.connectionTypes = connectionTypes;
	}

	public void setChannelsOnSide( EnumMap<EnumFacing, Integer> channelsOnSide )
	{
		this.channelsOnSide = channelsOnSide;
	}

	public EnumSet<EnumFacing> getCableBusAdjacent()
	{
		return this.cableBusAdjacent;
	}

	public void setCableBusAdjacent( EnumSet<EnumFacing> cableBusAdjacent )
	{
		this.cableBusAdjacent = cableBusAdjacent;
	}

	public EnumMap<EnumFacing, IPartModel> getAttachments()
	{
		return this.attachments;
	}

	public EnumMap<EnumFacing, Integer> getAttachmentConnections()
	{
		return this.attachmentConnections;
	}

	public EnumMap<EnumFacing, FacadeRenderState> getFacades()
	{
		return this.facades;
	}

	public List<AxisAlignedBB> getBoundingBoxes()
	{
		return this.boundingBoxes;
	}

	@Override
	public int hashCode()
	{
		final int prime = 31;
		int result = 1;
		result = prime * result + ( ( this.attachmentConnections == null ) ? 0 : this.attachmentConnections.hashCode() );
		result = prime * result + ( ( this.cableBusAdjacent == null ) ? 0 : this.cableBusAdjacent.hashCode() );
		result = prime * result + ( ( this.cableColor == null ) ? 0 : this.cableColor.hashCode() );
		result = prime * result + ( ( this.cableType == null ) ? 0 : this.cableType.hashCode() );
		result = prime * result + ( ( this.channelsOnSide == null ) ? 0 : this.channelsOnSide.hashCode() );
		result = prime * result + ( ( this.connectionTypes == null ) ? 0 : this.connectionTypes.hashCode() );
		result = prime * result + ( ( this.coreType == null ) ? 0 : this.coreType.hashCode() );
		return result;
	}

	@Override
	public boolean equals( Object obj )
	{
		if( this == obj )
		{
			return true;
		}
		if( obj == null )
		{
			return false;
		}
		if( getClass() != obj.getClass() )
		{
			return false;
		}

		final CableBusRenderState other = (CableBusRenderState) obj;

		return this.cableColor == other.cableColor && this.cableType == other.cableType && this.coreType == other.coreType && Objects
				.equals( this.attachmentConnections, other.attachmentConnections ) && Objects.equals( this.cableBusAdjacent,
						other.cableBusAdjacent ) && Objects.equals( this.channelsOnSide, other.channelsOnSide ) && Objects.equals( this.connectionTypes,
								other.connectionTypes );
	}

}