package net.minecraft.world.level.levelgen.feature.foliageplacers;

import com.mojang.serialization.MapCodec;
import com.mojang.serialization.codecs.RecordCodecBuilder;
import net.minecraft.core.BlockPos;
import net.minecraft.util.RandomSource;
import net.minecraft.util.valueproviders.IntProvider;
import net.minecraft.util.valueproviders.IntProviders;
import net.minecraft.world.level.WorldGenLevel;
import net.minecraft.world.level.levelgen.feature.configurations.TreeConfiguration;

public class SpruceFoliagePlacer extends FoliagePlacer {
	public static final MapCodec<SpruceFoliagePlacer> CODEC = RecordCodecBuilder.mapCodec(
		i -> foliagePlacerParts(i).and(IntProviders.codec(0, 24).fieldOf("trunk_height").forGetter(p -> p.trunkHeight)).apply(i, SpruceFoliagePlacer::new)
	);
	private final IntProvider trunkHeight;

	public SpruceFoliagePlacer(final IntProvider radius, final IntProvider offset, final IntProvider trunkHeight) {
		super(radius, offset);
		this.trunkHeight = trunkHeight;
	}

	@Override
	protected FoliagePlacerType<?> type() {
		return FoliagePlacerType.SPRUCE_FOLIAGE_PLACER;
	}

	@Override
	protected void createFoliage(
		final WorldGenLevel level,
		final FoliagePlacer.FoliageSetter foliageSetter,
		final RandomSource random,
		final TreeConfiguration config,
		final int treeHeight,
		final FoliagePlacer.FoliageAttachment foliageAttachment,
		final int foliageHeight,
		final int leafRadius,
		final int offset
	) {
		BlockPos foliagePos = foliageAttachment.pos();
		int currentRadius = random.nextInt(2);
		int maxRadius = 1;
		int minRadius = 0;

		for (int yo = offset; yo >= -foliageHeight; yo--) {
			this.placeLeavesRow(level, foliageSetter, random, config, foliagePos, currentRadius, yo, foliageAttachment.doubleTrunk());
			if (currentRadius >= maxRadius) {
				currentRadius = minRadius;
				minRadius = 1;
				maxRadius = Math.min(maxRadius + 1, leafRadius + foliageAttachment.radiusOffset());
			} else {
				currentRadius++;
			}
		}
	}

	@Override
	public int foliageHeight(final RandomSource random, final int treeHeight, final TreeConfiguration config) {
		return Math.max(4, treeHeight - this.trunkHeight.sample(random));
	}

	@Override
	protected boolean shouldSkipLocation(final RandomSource random, final int dx, final int y, final int dz, final int currentRadius, final boolean doubleTrunk) {
		return dx == currentRadius && dz == currentRadius && currentRadius > 0;
	}
}