package net.minecraft.network.protocol.game;

import java.util.BitSet;
import net.minecraft.network.FriendlyByteBuf;
import net.minecraft.network.codec.StreamCodec;
import net.minecraft.network.protocol.Packet;
import net.minecraft.network.protocol.PacketType;
import net.minecraft.world.level.ChunkPos;
import net.minecraft.world.level.lighting.LevelLightEngine;
import org.jspecify.annotations.Nullable;

public class ClientboundLightUpdatePacket implements Packet<ClientGamePacketListener> {
	public static final StreamCodec<FriendlyByteBuf, ClientboundLightUpdatePacket> STREAM_CODEC = Packet.codec(
		ClientboundLightUpdatePacket::write, ClientboundLightUpdatePacket::new
	);
	private final int x;
	private final int z;
	private final ClientboundLightUpdatePacketData lightData;

	public ClientboundLightUpdatePacket(
		final ChunkPos pos,
		final LevelLightEngine lightEngine,
		@Nullable final BitSet skyChangedLightSectionFilter,
		@Nullable final BitSet blockChangedLightSectionFilter
	) {
		this.x = pos.x();
		this.z = pos.z();
		this.lightData = new ClientboundLightUpdatePacketData(pos, lightEngine, skyChangedLightSectionFilter, blockChangedLightSectionFilter);
	}

	private ClientboundLightUpdatePacket(final FriendlyByteBuf input) {
		this.x = input.readVarInt();
		this.z = input.readVarInt();
		this.lightData = new ClientboundLightUpdatePacketData(input, this.x, this.z);
	}

	private void write(final FriendlyByteBuf output) {
		output.writeVarInt(this.x);
		output.writeVarInt(this.z);
		this.lightData.write(output);
	}

	@Override
	public PacketType<ClientboundLightUpdatePacket> type() {
		return GamePacketTypes.CLIENTBOUND_LIGHT_UPDATE;
	}

	public void handle(final ClientGamePacketListener listener) {
		listener.handleLightUpdatePacket(this);
	}

	public int getX() {
		return this.x;
	}

	public int getZ() {
		return this.z;
	}

	public ClientboundLightUpdatePacketData getLightData() {
		return this.lightData;
	}
}