/*
 * 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.entity;

import java.util.List;

import appeng.api.AEApi;
import appeng.api.definitions.IMaterials;
import appeng.client.EffectType;
import appeng.core.AEConfig;
import appeng.core.CommonHelper;
import appeng.core.features.AEFeature;
import appeng.helpers.Reflected;
import appeng.util.Platform;
import net.minecraft.block.material.Material;
import net.minecraft.entity.Entity;
import net.minecraft.entity.item.EntityItem;
import net.minecraft.init.Items;
import net.minecraft.item.ItemStack;
import net.minecraft.util.AxisAlignedBB;
import net.minecraft.util.MathHelper;
import net.minecraft.world.World;

public final class EntityChargedQuartz extends AEBaseEntityItem {
    private int delay = 0;
    private int transformTime = 0;

    @Reflected
    public EntityChargedQuartz(final World w) {
        super(w);
    }

    public EntityChargedQuartz(
        final World w, final double x, final double y, final double z, final ItemStack is
    ) {
        super(w, x, y, z, is);
    }

    @Override
    public void onUpdate() {
        super.onUpdate();

        if (!AEConfig.instance.isFeatureEnabled(AEFeature.InWorldFluix)) {
            return;
        }

        if (Platform.isClient() && this.delay > 30 && AEConfig.instance.enableEffects) {
            CommonHelper.proxy.spawnEffect(
                EffectType.Lightning, this.worldObj, this.posX, this.posY, this.posZ, null
            );
            this.delay = 0;
        }
        this.delay++;

        final int j = MathHelper.floor_double(this.posX);
        final int i = MathHelper.floor_double(
            (this.boundingBox.minY + this.boundingBox.maxY) / 2.0D
        );
        final int k = MathHelper.floor_double(this.posZ);

        final Material mat = this.worldObj.getBlock(j, i, k).getMaterial();
        if (Platform.isServer() && mat.isLiquid()) {
            this.transformTime++;
            if (this.transformTime > 60) {
                if (!this.transform()) {
                    this.transformTime = 0;
                }
            }
        } else {
            this.transformTime = 0;
        }
    }

    private boolean transform() {
        final ItemStack item = this.getEntityItem();
        final IMaterials materials = AEApi.instance().definitions().materials();

        if (materials.certusQuartzCrystalCharged().isSameAs(item)) {
            final AxisAlignedBB region = AxisAlignedBB.getBoundingBox(
                this.posX - 1,
                this.posY - 1,
                this.posZ - 1,
                this.posX + 1,
                this.posY + 1,
                this.posZ + 1
            );
            final List<Entity> l
                = this.getCheckedEntitiesWithinAABBExcludingEntity(region);

            EntityItem redstone = null;
            EntityItem netherQuartz = null;

            for (final Entity e : l) {
                if (e instanceof EntityItem && !e.isDead) {
                    final ItemStack other = ((EntityItem) e).getEntityItem();
                    if (other != null && other.stackSize > 0) {
                        if (Platform.isSameItem(other, new ItemStack(Items.redstone))) {
                            redstone = (EntityItem) e;
                        }

                        if (Platform.isSameItem(other, new ItemStack(Items.quartz))) {
                            netherQuartz = (EntityItem) e;
                        }
                    }
                }
            }

            if (redstone != null && netherQuartz != null) {
                this.getEntityItem().stackSize--;
                redstone.getEntityItem().stackSize--;
                netherQuartz.getEntityItem().stackSize--;

                if (this.getEntityItem().stackSize <= 0) {
                    this.setDead();
                }

                if (redstone.getEntityItem().stackSize <= 0) {
                    redstone.setDead();
                }

                if (netherQuartz.getEntityItem().stackSize <= 0) {
                    netherQuartz.setDead();
                }

                for (final ItemStack fluixCrystalStack :
                     materials.fluixCrystal().maybeStack(2).asSet()) {
                    final EntityItem entity = new EntityItem(
                        this.worldObj, this.posX, this.posY, this.posZ, fluixCrystalStack
                    );

                    this.worldObj.spawnEntityInWorld(entity);
                }

                return true;
            }
        }

        return false;
    }
}