/*
 * 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.bootstrap;


import appeng.api.definitions.IBlockDefinition;
import appeng.block.AEBaseBlock;
import appeng.block.AEBaseItemBlock;
import appeng.block.AEBaseTileBlock;
import appeng.bootstrap.components.IBlockRegistrationComponent;
import appeng.bootstrap.components.IItemRegistrationComponent;
import appeng.bootstrap.components.IPreInitComponent;
import appeng.bootstrap.definitions.TileEntityDefinition;
import appeng.core.AEConfig;
import appeng.core.AppEng;
import appeng.core.CreativeTab;
import appeng.core.features.*;
import appeng.tile.AEBaseTile;
import appeng.util.Platform;
import net.minecraft.block.Block;
import net.minecraft.client.renderer.block.model.ModelResourceLocation;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.item.Item;
import net.minecraft.item.ItemBlock;
import net.minecraft.util.ResourceLocation;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

import javax.annotation.Nullable;
import java.util.ArrayList;
import java.util.Collections;
import java.util.EnumSet;
import java.util.List;
import java.util.function.BiFunction;
import java.util.function.Function;
import java.util.function.Supplier;


class BlockDefinitionBuilder implements IBlockBuilder {

    private final FeatureFactory factory;

    private final String registryName;

    private final Supplier<? extends Block> blockSupplier;

    private final List<BiFunction<Block, Item, IBootstrapComponent>> bootstrapComponents = new ArrayList<>();

    private final EnumSet<AEFeature> features = EnumSet.noneOf(AEFeature.class);

    private final CreativeTabs creativeTab = CreativeTab.instance;

    private TileEntityDefinition tileEntityDefinition;

    private boolean disableItem = false;

    private Function<Block, ItemBlock> itemFactory;

    @SideOnly(Side.CLIENT)
    private BlockRendering blockRendering;

    @SideOnly(Side.CLIENT)
    private ItemRendering itemRendering;

    BlockDefinitionBuilder(FeatureFactory factory, String id, Supplier<? extends Block> blockSupplier) {
        this.factory = factory;
        this.registryName = id;
        this.blockSupplier = blockSupplier;

        if (Platform.isClient()) {
            this.blockRendering = new BlockRendering();
            this.itemRendering = new ItemRendering();
        }
    }

    @Override
    public BlockDefinitionBuilder bootstrap(BiFunction<Block, Item, IBootstrapComponent> callback) {
        this.bootstrapComponents.add(callback);
        return this;
    }

    @Override
    public IBlockBuilder features(AEFeature... features) {
        this.features.clear();
        this.addFeatures(features);
        return this;
    }

    @Override
    public IBlockBuilder addFeatures(AEFeature... features) {
        Collections.addAll(this.features, features);
        return this;
    }

    @Override
    public BlockDefinitionBuilder rendering(BlockRenderingCustomizer callback) {
        if (Platform.isClient()) {
            this.customizeForClient(callback);
        }

        return this;
    }

    @Override
    public IBlockBuilder tileEntity(TileEntityDefinition tileEntityDefinition) {
        this.tileEntityDefinition = tileEntityDefinition;
        return this;
    }

    @Override
    public IBlockBuilder useCustomItemModel() {
        this.rendering(new BlockRenderingCustomizer() {
            @Override
            @SideOnly(Side.CLIENT)
            public void customize(IBlockRendering rendering, IItemRendering itemRendering) {
                ModelResourceLocation model = new ModelResourceLocation(new ResourceLocation(AppEng.MOD_ID, BlockDefinitionBuilder.this.registryName), "inventory");
                itemRendering.model(model).variants(model);
            }
        });

        return this;
    }

    @Override
    public IBlockBuilder item(Function<Block, ItemBlock> factory) {
        this.itemFactory = factory;
        return this;
    }

    @Override
    public IBlockBuilder disableItem() {
        this.disableItem = true;
        return this;
    }

    @SideOnly(Side.CLIENT)
    private void customizeForClient(BlockRenderingCustomizer callback) {
        callback.customize(this.blockRendering, this.itemRendering);
    }

    @SuppressWarnings("unchecked")
    @Override
    public <T extends IBlockDefinition> T build() {
        if (!AEConfig.instance().areFeaturesEnabled(this.features)) {
            return (T) new TileDefinition(this.registryName, null, null);
        }

        // Create block and matching item, and set factory name of both
        Block block = this.blockSupplier.get();
        block.setRegistryName(AppEng.MOD_ID, this.registryName);
        block.setUnlocalizedName("appliedenergistics2." + this.registryName);

        ItemBlock item = this.constructItemFromBlock(block);
        if (item != null) {
            item.setRegistryName(AppEng.MOD_ID, this.registryName);
        }

        // Register the item and block with the game
        this.factory.addBootstrapComponent((IBlockRegistrationComponent) (side, registry) -> registry.register(block));
        if (item != null) {
            this.factory.addBootstrapComponent((IItemRegistrationComponent) (side, registry) -> registry.register(item));
        }

        block.setCreativeTab(this.creativeTab);

        // Register all extra handlers
        this.bootstrapComponents.forEach(component -> this.factory.addBootstrapComponent(component.apply(block, item)));

        if (this.tileEntityDefinition != null && block instanceof AEBaseTileBlock) {
            ((AEBaseTileBlock) block).setTileEntity(this.tileEntityDefinition.getTileEntityClass());
            if (this.tileEntityDefinition.getName() == null) {
                this.tileEntityDefinition.setName(this.registryName);
            }

        }

        if (Platform.isClient()) {
            if (block instanceof AEBaseTileBlock) {
                AEBaseTileBlock tileBlock = (AEBaseTileBlock) block;
                this.blockRendering.apply(this.factory, block, tileBlock.getTileEntityClass());
            } else {
                this.blockRendering.apply(this.factory, block, null);
            }

            if (item != null) {
                this.itemRendering.apply(this.factory, item);
            }
        }

        if (block instanceof AEBaseTileBlock) {
            this.factory.addBootstrapComponent((IPreInitComponent) side ->
            {
                AEBaseTile.registerTileItem(
                        this.tileEntityDefinition == null ? ((AEBaseTileBlock) block).getTileEntityClass() : this.tileEntityDefinition.getTileEntityClass(),
                        new BlockStackSrc(block, 0, ActivityState.Enabled));
            });

            if (this.tileEntityDefinition != null) {
                this.factory.tileEntityComponent.addTileEntity(this.tileEntityDefinition);
            }

            return (T) new TileDefinition(this.registryName, (AEBaseTileBlock) block, item);
        } else {
            return (T) new BlockDefinition(this.registryName, block, item);
        }
    }

    @Nullable
    private ItemBlock constructItemFromBlock(Block block) {
        if (this.disableItem) {
            return null;
        }

        if (this.itemFactory != null) {
            return this.itemFactory.apply(block);
        } else if (block instanceof AEBaseBlock) {
            return new AEBaseItemBlock(block);
        } else {
            return new ItemBlock(block);
        }
    }
}