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/*
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package cn.nukkit.block;

import cn.nukkit.Player;
import cn.nukkit.api.PowerNukkitDifference;
import cn.nukkit.api.PowerNukkitOnly;
import cn.nukkit.api.Since;
import cn.nukkit.blockentity.BlockEntity;
import cn.nukkit.blockentity.BlockEntityShulkerBox;
import cn.nukkit.inventory.ContainerInventory;
import cn.nukkit.inventory.ShulkerBoxInventory;
import cn.nukkit.item.Item;
import cn.nukkit.item.ItemBlock;
import cn.nukkit.item.ItemTool;
import cn.nukkit.math.BlockFace;
import cn.nukkit.nbt.NBTIO;
import cn.nukkit.nbt.tag.CompoundTag;
import cn.nukkit.nbt.tag.ListTag;
import cn.nukkit.nbt.tag.Tag;
import cn.nukkit.utils.BlockColor;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.util.Map;

/**
 *
 * @author Reece Mackie
 */
@PowerNukkitDifference(since = "1.4.0.0-PN", info = "Implements BlockEntityHolder only in PowerNukkit")
public class BlockUndyedShulkerBox extends BlockTransparent implements BlockEntityHolder {

    public BlockUndyedShulkerBox() {
        super();
    }

    @Override
    public int getId() {
        return UNDYED_SHULKER_BOX;
    }

    @Override
    public String getName() {
        return "Shulker Box";
    }

    @Since("1.4.0.0-PN")
    @PowerNukkitOnly
    @Nonnull
    @Override
    public Class getBlockEntityClass() {
        return BlockEntityShulkerBox.class;
    }

    @PowerNukkitOnly
    @Since("1.4.0.0-PN")
    @Nonnull
    @Override
    public String getBlockEntityType() {
        return BlockEntity.SHULKER_BOX;
    }

    @Override
    public double getHardness() {
        return 2;
    }

    @Override
    public double getResistance() {
        return 10;
    }

    @Override
    public boolean canBeActivated() {
        return true;
    }

    @Override
    public int getToolType() {
        return ItemTool.TYPE_PICKAXE;
    }

    @PowerNukkitOnly
    @Override
    public int getWaterloggingLevel() {
        return 1;
    }

    @Override
    public Item toItem() {
        ItemBlock item = new ItemBlock(this, this.getDamage(), 1);

        BlockEntityShulkerBox tile = getBlockEntity();

        if (tile == null) {
            return item;
        }
        
        ShulkerBoxInventory inv = tile.getRealInventory();

        if (!inv.isEmpty()) {
            CompoundTag nbt = item.getNamedTag();
            if (nbt == null) {
                nbt = new CompoundTag("");
            }

            ListTag items = new ListTag<>();

            for (int it = 0; it < inv.getSize(); it++) {
                if (!inv.getItem(it).isNull()) {
                    CompoundTag d = NBTIO.putItemHelper(inv.getItem(it), it);
                    items.add(d);
                }
            }

            nbt.put("Items", items);

            item.setCompoundTag(nbt);
        }

        if (tile.hasName()) {
            item.setCustomName(tile.getName());
        }

        return item;
    }

    @Override
    public boolean place(@Nonnull Item item, @Nonnull Block block, @Nonnull Block target, @Nonnull BlockFace face, double fx, double fy, double fz, @Nullable Player player) {
        CompoundTag nbt = new CompoundTag().putByte("facing", face.getIndex());

        if (item.hasCustomName()) {
            nbt.putString("CustomName", item.getCustomName());
        }

        CompoundTag t = item.getNamedTag();

        // This code gets executed when the player has broken the shulker box and placed it back (©Kevims 2020)
        if (t != null && t.contains("Items")) {
            nbt.putList(t.getList("Items"));
        }

        // This code gets executed when the player has copied the shulker box in creative mode (©Kevims 2020)
        if (item.hasCustomBlockData()) {
            Map customData = item.getCustomBlockData().getTags();
            for (Map.Entry tag : customData.entrySet()) {
                nbt.put(tag.getKey(), tag.getValue());
            }
        }

        return BlockEntityHolder.setBlockAndCreateEntity(this, true, true, nbt) != null;
    }

    @Override
    public boolean canHarvestWithHand() {
        return false;
    }

    @Override
    public boolean onActivate(@Nonnull Item item, @Nullable Player player) {
        if (player == null) {
            return false;
        }
        
        BlockEntityShulkerBox box = getOrCreateBlockEntity();
        Block block = this.getSide(BlockFace.fromIndex(box.namedTag.getByte("facing")));
        if (!(block instanceof BlockAir) && !(block instanceof BlockLiquid) && !(block instanceof BlockFlowable)) {
            return false;
        }

        player.addWindow(box.getInventory());
        return true;
    }

    @Override
    public boolean hasComparatorInputOverride() {
        return true;
    }

    @Override
    public int getComparatorInputOverride() {
        BlockEntityShulkerBox be = getBlockEntity();

        if (be == null) {
            return 0;
        }

        return ContainerInventory.calculateRedstone(be.getInventory());
    }

    @Override
    public BlockColor getColor() {
        return BlockColor.PURPLE_BLOCK_COLOR;
    }

    @Override
    @PowerNukkitOnly
    public boolean breaksWhenMoved() {
        return true;
    }

    @Override
    @PowerNukkitOnly
    public  boolean sticksToPiston() {
        return false;
    }

    @Since("1.3.0.0-PN")
    @PowerNukkitOnly
    @Override
    public boolean isSolid(BlockFace side) {
        return false;
    }

    @Since("1.4.0.0-PN")
    @PowerNukkitOnly
    @Override
    public int getItemMaxStackSize() {
        return 1;
    }
}