package net.minecraft.world.entity.ai.sensing;

import com.google.common.collect.ImmutableSet;
import java.util.List;
import java.util.Optional;
import java.util.Set;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.world.entity.LivingEntity;
import net.minecraft.world.entity.Mob;
import net.minecraft.world.entity.ai.Brain;
import net.minecraft.world.entity.ai.memory.MemoryModuleType;
import net.minecraft.world.entity.ai.memory.NearestVisibleLivingEntities;
import net.minecraft.world.entity.boss.wither.WitherBoss;
import net.minecraft.world.entity.monster.piglin.AbstractPiglin;
import net.minecraft.world.entity.monster.piglin.PiglinAi;
import net.minecraft.world.entity.monster.skeleton.WitherSkeleton;

public class PiglinBruteSpecificSensor extends Sensor<LivingEntity> {
	@Override
	public Set<MemoryModuleType<?>> requires() {
		return ImmutableSet.of(MemoryModuleType.NEAREST_VISIBLE_LIVING_ENTITIES, MemoryModuleType.NEAREST_VISIBLE_NEMESIS, MemoryModuleType.NEARBY_ADULT_PIGLINS);
	}

	@Override
	protected void doTick(final ServerLevel level, final LivingEntity body) {
		Brain<?> brain = body.getBrain();
		NearestVisibleLivingEntities visibleLivingEntities = (NearestVisibleLivingEntities)brain.getMemory(MemoryModuleType.NEAREST_VISIBLE_LIVING_ENTITIES)
			.orElse(NearestVisibleLivingEntities.empty());
		Optional<Mob> nemesis = visibleLivingEntities.findClosest(entity -> entity instanceof WitherSkeleton || entity instanceof WitherBoss).map(Mob.class::cast);
		List<AbstractPiglin> adultPiglins = PiglinAi.findNearbyAdultPiglins(brain);
		brain.setMemory(MemoryModuleType.NEAREST_VISIBLE_NEMESIS, nemesis);
		brain.setMemory(MemoryModuleType.NEARBY_ADULT_PIGLINS, adultPiglins);
	}
}