/*
 * 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 appeng.api.util.AEColor;
import appeng.core.AELog;
import appeng.core.features.registries.PartModels;
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.client.resources.IResourceManager;
import net.minecraft.util.ResourceLocation;
import net.minecraftforge.client.model.IModel;
import net.minecraftforge.client.model.ModelLoaderRegistry;
import net.minecraftforge.client.resource.IResourceType;
import net.minecraftforge.client.resource.ISelectiveResourceReloadListener;
import net.minecraftforge.client.resource.VanillaResourceType;
import net.minecraftforge.common.model.IModelState;
import net.minecraftforge.common.model.TRSRTransformation;

import java.util.Collection;
import java.util.Map;
import java.util.function.Function;
import java.util.function.Predicate;


/**
 * The built-in model for the cable bus block.
 */
public class CableBusModel implements IModel, ISelectiveResourceReloadListener {

    private final PartModels partModels;

    public CableBusModel(PartModels partModels) {
        this.partModels = partModels;
    }

    @Override
    public Collection<ResourceLocation> getDependencies() {
        this.partModels.setInitialized(true);
        return this.partModels.getModels();
    }

    @Override
    public Collection<ResourceLocation> getTextures() {
        return ImmutableList.<ResourceLocation>builder()
                .addAll(CableBuilder.getTextures())
                .build();
    }

    @Override
    public IBakedModel bake(IModelState state, VertexFormat format, Function<ResourceLocation, TextureAtlasSprite> bakedTextureGetter) {
        Map<ResourceLocation, IBakedModel> partModels = this.loadPartModels(state, format, bakedTextureGetter);

        CableBuilder cableBuilder = new CableBuilder(format, bakedTextureGetter);
        FacadeBuilder facadeBuilder = new FacadeBuilder();

        // This should normally not be used, but we *have* to provide a particle texture or otherwise damage models will
        // crash
        TextureAtlasSprite particleTexture = cableBuilder.getCoreTexture(CableCoreType.GLASS, AEColor.TRANSPARENT);

        return new CableBusBakedModel(cableBuilder, facadeBuilder, partModels, particleTexture);
    }

    private Map<ResourceLocation, IBakedModel> loadPartModels(IModelState state, VertexFormat format, Function<ResourceLocation, TextureAtlasSprite> bakedTextureGetter) {
        ImmutableMap.Builder<ResourceLocation, IBakedModel> result = ImmutableMap.builder();

        for (ResourceLocation location : this.partModels.getModels()) {
            IModel model = this.tryLoadPartModel(location);
            IBakedModel bakedModel = model.bake(state, format, bakedTextureGetter);
            result.put(location, bakedModel);
        }

        return result.build();
    }

    private IModel tryLoadPartModel(ResourceLocation location) {
        try {
            return ModelLoaderRegistry.getModel(location);
        } catch (Exception e) {
            AELog.error(e, "Unable to load part model " + location);
            return ModelLoaderRegistry.getMissingModel();
        }
    }

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

    @Override
    public void onResourceManagerReload(IResourceManager resourceManager, Predicate<IResourceType> resourcePredicate) {
        if (resourcePredicate.test(VanillaResourceType.MODELS)) {
            CableBusBakedModel.CABLE_MODEL_CACHE.clear();
        }
    }

}