package net.minecraft.world.level.levelgen.structure.templatesystem;

import com.mojang.serialization.MapCodec;
import java.util.List;
import net.minecraft.core.BlockPos;
import net.minecraft.world.level.LevelReader;
import net.minecraft.world.level.ServerLevelAccessor;
import org.jspecify.annotations.Nullable;

public interface StructureProcessor {
	@Nullable
	default StructureTemplate.StructureBlockInfo processBlock(
		final LevelReader level,
		final BlockPos targetPosition,
		final BlockPos referencePos,
		final BlockPos templateRelativePos,
		final StructureTemplate.StructureBlockInfo processedBlockInfo,
		final StructurePlaceSettings settings
	) {
		return processedBlockInfo;
	}

	MapCodec<? extends StructureProcessor> codec();

	default List<StructureTemplate.StructureBlockInfo> finalizeProcessing(
		final ServerLevelAccessor level,
		final BlockPos position,
		final BlockPos referencePos,
		final List<StructureTemplate.StructureBlockInfo> originalBlockInfoList,
		final List<StructureTemplate.StructureBlockInfo> processedBlockInfoList,
		final StructurePlaceSettings settings
	) {
		return processedBlockInfoList;
	}

	default boolean evaluatesEntirePieceState() {
		return false;
	}
}