package net.minecraft.world.level.block.entity;

import com.mojang.logging.LogUtils;
import net.minecraft.core.BlockPos;
import net.minecraft.core.Direction;
import net.minecraft.core.Holder;
import net.minecraft.core.HolderLookup;
import net.minecraft.core.NonNullList;
import net.minecraft.core.component.DataComponentGetter;
import net.minecraft.core.component.DataComponentMap;
import net.minecraft.core.component.DataComponents;
import net.minecraft.nbt.CompoundTag;
import net.minecraft.network.protocol.game.ClientboundBlockEntityDataPacket;
import net.minecraft.util.ProblemReporter;
import net.minecraft.world.Container;
import net.minecraft.world.ContainerHelper;
import net.minecraft.world.entity.ItemOwner;
import net.minecraft.world.entity.player.Player;
import net.minecraft.world.item.ItemStack;
import net.minecraft.world.item.component.ItemContainerContents;
import net.minecraft.world.level.Level;
import net.minecraft.world.level.block.ShelfBlock;
import net.minecraft.world.level.block.state.BlockState;
import net.minecraft.world.level.gameevent.GameEvent;
import net.minecraft.world.level.storage.TagValueOutput;
import net.minecraft.world.level.storage.ValueInput;
import net.minecraft.world.level.storage.ValueOutput;
import net.minecraft.world.phys.Vec3;
import org.jspecify.annotations.Nullable;
import org.slf4j.Logger;

public class ShelfBlockEntity extends BlockEntity implements ListBackedContainer, ItemOwner {
	public static final int MAX_ITEMS = 3;
	private static final Logger LOGGER = LogUtils.getLogger();
	private static final String ALIGN_ITEMS_TO_BOTTOM_TAG = "align_items_to_bottom";
	private final NonNullList<ItemStack> items = NonNullList.withSize(3, ItemStack.EMPTY);
	private boolean alignItemsToBottom;

	public ShelfBlockEntity(final BlockPos worldPosition, final BlockState blockState) {
		super(BlockEntityTypes.SHELF, worldPosition, blockState);
	}

	@Override
	protected void loadAdditional(final ValueInput input) {
		super.loadAdditional(input);
		this.items.clear();
		ContainerHelper.loadAllItems(input, this.items);
		this.alignItemsToBottom = input.getBooleanOr("align_items_to_bottom", false);
	}

	@Override
	protected void saveAdditional(final ValueOutput output) {
		super.saveAdditional(output);
		ContainerHelper.saveAllItems(output, this.items, true);
		output.putBoolean("align_items_to_bottom", this.alignItemsToBottom);
	}

	public ClientboundBlockEntityDataPacket getUpdatePacket() {
		return ClientboundBlockEntityDataPacket.create(this);
	}

	@Override
	public CompoundTag getUpdateTag(final HolderLookup.Provider registries) {
		CompoundTag var4;
		try (ProblemReporter.ScopedCollector reporter = new ProblemReporter.ScopedCollector(this.problemPath(), LOGGER)) {
			TagValueOutput output = TagValueOutput.createWithContext(reporter, registries);
			ContainerHelper.saveAllItems(output, this.items, true);
			output.putBoolean("align_items_to_bottom", this.alignItemsToBottom);
			var4 = output.buildResult();
		}

		return var4;
	}

	@Override
	public NonNullList<ItemStack> getItems() {
		return this.items;
	}

	@Override
	public boolean stillValid(final Player player) {
		return Container.stillValidBlockEntity(this, player);
	}

	public ItemStack swapItemNoUpdate(final int slot, final ItemStack heldItemStack) {
		ItemStack retrievedItem = this.removeItemNoUpdate(slot);
		this.setItemNoUpdate(slot, heldItemStack);
		return retrievedItem;
	}

	public void setChanged(@Nullable final Holder.Reference<GameEvent> event) {
		super.setChanged();
		if (this.level != null) {
			if (event != null) {
				this.level.gameEvent(event, this.worldPosition, GameEvent.Context.of(this.getBlockState()));
			}

			this.getLevel().sendBlockUpdated(this.getBlockPos(), this.getBlockState(), this.getBlockState(), 3);
		}
	}

	@Override
	public void setChanged() {
		this.setChanged(GameEvent.BLOCK_ACTIVATE);
	}

	@Override
	protected void applyImplicitComponents(final DataComponentGetter components) {
		super.applyImplicitComponents(components);
		components.getOrDefault(DataComponents.CONTAINER, ItemContainerContents.EMPTY).copyInto(this.items);
	}

	@Override
	protected void collectImplicitComponents(final DataComponentMap.Builder components) {
		super.collectImplicitComponents(components);
		components.set(DataComponents.CONTAINER, ItemContainerContents.fromItems(this.items));
	}

	@Override
	public void removeComponentsFromTag(final ValueOutput output) {
		output.discard("Items");
	}

	@Override
	public Level level() {
		return this.level;
	}

	@Override
	public Vec3 position() {
		return Vec3.atCenterOf(this.getBlockPos());
	}

	@Override
	public float getVisualRotationYInDegrees() {
		return ((Direction)this.getBlockState().getValue(ShelfBlock.FACING)).getOpposite().toYRot();
	}

	public boolean getAlignItemsToBottom() {
		return this.alignItemsToBottom;
	}
}