/*
 * 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.tile.networking;

import appeng.api.config.Actionable;
import appeng.api.networking.IControllerCache;
import appeng.api.networking.IGridHost;
import appeng.api.networking.energy.IAEPowerStorage;
import appeng.api.networking.energy.IEnergyGrid;
import appeng.api.util.AECableType;
import appeng.me.GridAccessException;
import appeng.tile.grid.AENetworkPowerTile;
import appeng.tile.inventory.AppEngInternalInventory;
import appeng.tile.inventory.InvOperation;
import net.minecraft.inventory.IInventory;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraftforge.common.util.ForgeDirection;

public class TileEnergyAcceptor extends AENetworkPowerTile {
    private static final AppEngInternalInventory INTERNAL_INVENTORY
        = new AppEngInternalInventory(null, 0);
    private final int[] sides = {};

    public TileEnergyAcceptor() {
        this.getProxy().setIdlePowerUsage(0.0);
        this.setInternalMaxPower(0);
    }

    @Override
    public void readFromNBT_AENetwork(final NBTTagCompound data) {
        /**
         * Does nothing here since the NBT tag in the parent is not needed anymore
         */
    }

    @Override
    public void writeToNBT_AENetwork(final NBTTagCompound data) {
        /**
         * Does nothing here since the NBT tag in the parent is not needed anymore
         */
    }

    @Override
    public AECableType getCableConnectionType(final ForgeDirection dir) {
        return AECableType.COVERED;
    }

    @Override
    protected double getFunnelPowerDemand(final double maxRequired) {
        try {
            final IEnergyGrid grid = this.getProxy().getEnergy();
            return grid.getEnergyDemand(maxRequired);
        } catch (final GridAccessException e) {
            return this.getInternalMaxPower();
        }
    }

    @Override
    protected double funnelPowerIntoStorage(final double power, final Actionable mode) {
        try {
            final IEnergyGrid grid = this.getProxy().getEnergy();
            final IControllerCache cgc = this.getProxy().getGrid().getCache(IControllerCache.class);
            double leftOver = power;
            if (cgc.hasController()) {
                IGridHost controller = cgc.getController();
                if (controller instanceof IAEPowerStorage) {
                    leftOver = ((IAEPowerStorage)controller).injectAEPower(leftOver, mode);
                }
            }
            leftOver = grid.injectPower(leftOver, mode);
            if (mode == Actionable.SIMULATE) {
                return leftOver;
            }
            return 0.0;
        } catch (final GridAccessException e) {
            return super.funnelPowerIntoStorage(power, mode);
        }
    }

    @Override
    public IInventory getInternalInventory() {
        return INTERNAL_INVENTORY;
    }

    @Override
    public void onChangeInventory(
        final IInventory inv,
        final int slot,
        final InvOperation mc,
        final ItemStack removed,
        final ItemStack added
    ) {}

    @Override
    public int[] getAccessibleSlotsBySide(final ForgeDirection side) {
        return this.sides;
    }
}