package net.minecraft.world.level.block;

import com.mojang.serialization.MapCodec;
import java.util.List;
import java.util.Optional;
import net.minecraft.core.BlockPos;
import net.minecraft.core.Holder;
import net.minecraft.core.registries.Registries;
import net.minecraft.data.worldgen.placement.VegetationPlacements;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.util.RandomSource;
import net.minecraft.world.level.Level;
import net.minecraft.world.level.LevelReader;
import net.minecraft.world.level.block.BonemealableBlock.Type;
import net.minecraft.world.level.block.state.BlockBehaviour;
import net.minecraft.world.level.block.state.BlockState;
import net.minecraft.world.level.levelgen.feature.ConfiguredFeature;
import net.minecraft.world.level.levelgen.feature.configurations.RandomPatchConfiguration;
import net.minecraft.world.level.levelgen.placement.PlacedFeature;

public class GrassBlock extends SpreadingSnowyDirtBlock implements BonemealableBlock {
	public static final MapCodec<GrassBlock> CODEC = simpleCodec(GrassBlock::new);

	@Override
	public MapCodec<GrassBlock> codec() {
		return CODEC;
	}

	public GrassBlock(BlockBehaviour.Properties properties) {
		super(properties);
	}

	@Override
	public boolean isValidBonemealTarget(LevelReader level, BlockPos pos, BlockState state) {
		return level.getBlockState(pos.above()).isAir();
	}

	@Override
	public boolean isBonemealSuccess(Level level, RandomSource random, BlockPos pos, BlockState state) {
		return true;
	}

	@Override
	public void performBonemeal(ServerLevel level, RandomSource random, BlockPos pos, BlockState state) {
		BlockPos blockPos = pos.above();
		BlockState blockState = Blocks.SHORT_GRASS.defaultBlockState();
		Optional<Holder.Reference<PlacedFeature>> optional = level.registryAccess().lookupOrThrow(Registries.PLACED_FEATURE).get(VegetationPlacements.GRASS_BONEMEAL);

		label51:
		for (int i = 0; i < 128; i++) {
			BlockPos blockPos2 = blockPos;

			for (int j = 0; j < i / 16; j++) {
				blockPos2 = blockPos2.offset(random.nextInt(3) - 1, (random.nextInt(3) - 1) * random.nextInt(3) / 2, random.nextInt(3) - 1);
				if (!level.getBlockState(blockPos2.below()).is(this) || level.getBlockState(blockPos2).isCollisionShapeFullBlock(level, blockPos2)) {
					continue label51;
				}
			}

			BlockState blockState2 = level.getBlockState(blockPos2);
			if (blockState2.is(blockState.getBlock()) && random.nextInt(10) == 0) {
				BonemealableBlock bonemealableBlock = (BonemealableBlock)blockState.getBlock();
				if (bonemealableBlock.isValidBonemealTarget(level, blockPos2, blockState2)) {
					bonemealableBlock.performBonemeal(level, random, blockPos2, blockState2);
				}
			}

			if (blockState2.isAir()) {
				Holder<PlacedFeature> holder;
				if (random.nextInt(8) == 0) {
					List<ConfiguredFeature<?, ?>> list = level.getBiome(blockPos2).value().getGenerationSettings().getFlowerFeatures();
					if (list.isEmpty()) {
						continue;
					}

					holder = ((RandomPatchConfiguration)((ConfiguredFeature)list.get(0)).config()).feature();
				} else {
					if (!optional.isPresent()) {
						continue;
					}

					holder = (Holder<PlacedFeature>)optional.get();
				}

				holder.value().place(level, level.getChunkSource().getGenerator(), random, blockPos2);
			}
		}
	}

	@Override
	public Type getType() {
		return Type.NEIGHBOR_SPREADER;
	}
}