/*
 * 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.model;


import java.util.Collection;
import java.util.Collections;
import java.util.EnumMap;
import java.util.Map;

import com.google.common.base.Function;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;

import net.minecraft.client.renderer.block.model.IBakedModel;
import net.minecraft.client.renderer.texture.TextureAtlasSprite;
import net.minecraft.client.renderer.vertex.VertexFormat;
import net.minecraft.util.ResourceLocation;
import net.minecraftforge.client.model.IModel;
import net.minecraftforge.client.model.ModelLoaderRegistry;
import net.minecraftforge.common.model.IModelState;
import net.minecraftforge.common.model.TRSRTransformation;

import appeng.block.storage.DriveSlotState;


public class DriveModel implements IModel
{

	private static final ResourceLocation MODEL_BASE = new ResourceLocation( "appliedenergistics2:block/drive_base" );

	private static final Map<DriveSlotState, ResourceLocation> MODELS_CELLS = ImmutableMap.of(
			DriveSlotState.EMPTY, new ResourceLocation( "appliedenergistics2:block/drive_cell_empty" ),
			DriveSlotState.OFFLINE, new ResourceLocation( "appliedenergistics2:block/drive_cell_off" ),
			DriveSlotState.ONLINE, new ResourceLocation( "appliedenergistics2:block/drive_cell_on" ),
			DriveSlotState.TYPES_FULL, new ResourceLocation( "appliedenergistics2:block/drive_cell_types_full" ),
			DriveSlotState.FULL, new ResourceLocation( "appliedenergistics2:block/drive_cell_full" )
	);

	@Override
	public Collection<ResourceLocation> getDependencies()
	{
		return ImmutableList.<ResourceLocation>builder().add( MODEL_BASE ).addAll( MODELS_CELLS.values() ).build();
	}

	@Override
	public Collection<ResourceLocation> getTextures()
	{
		return Collections.emptyList();
	}

	@Override
	public IBakedModel bake( IModelState state, VertexFormat format, Function<ResourceLocation, TextureAtlasSprite> bakedTextureGetter )
	{
		EnumMap<DriveSlotState, IBakedModel> cellModels = new EnumMap<>( DriveSlotState.class );

		// Load the base model and the model for each cell state.
		IModel baseModel;
		try
		{
			baseModel = ModelLoaderRegistry.getModel( MODEL_BASE );
			for( DriveSlotState slotState : MODELS_CELLS.keySet() )
			{
				IModel model = ModelLoaderRegistry.getModel( MODELS_CELLS.get( slotState ) );
				cellModels.put( slotState, model.bake( state, format, bakedTextureGetter ) );
			}
		}
		catch( Exception e )
		{
			throw new RuntimeException( e );
		}

		IBakedModel bakedBase = baseModel.bake( state, format, bakedTextureGetter );
		return new DriveBakedModel( bakedBase, cellModels );
	}

	@Override
	public IModelState getDefaultState()
	{
		return TRSRTransformation.identity();
	}
}