package net.minecraft.world.entity.animal.nautilus;

import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import com.mojang.datafixers.util.Pair;
import java.util.List;
import net.minecraft.sounds.SoundEvents;
import net.minecraft.world.entity.ai.ActivityData;
import net.minecraft.world.entity.ai.behavior.ChargeAttack;
import net.minecraft.world.entity.ai.behavior.CountDownCooldownTicks;
import net.minecraft.world.entity.ai.behavior.FollowTemptation;
import net.minecraft.world.entity.ai.behavior.GateBehavior;
import net.minecraft.world.entity.ai.behavior.LookAtTargetSink;
import net.minecraft.world.entity.ai.behavior.MoveToTargetSink;
import net.minecraft.world.entity.ai.behavior.RandomStroll;
import net.minecraft.world.entity.ai.behavior.SetWalkTargetFromLookTarget;
import net.minecraft.world.entity.ai.behavior.StartAttacking;
import net.minecraft.world.entity.ai.memory.MemoryModuleType;
import net.minecraft.world.entity.ai.memory.MemoryStatus;
import net.minecraft.world.entity.schedule.Activity;

public class ZombieNautilusAi {
	private static final float SPEED_MULTIPLIER_WHEN_IDLING_IN_WATER = 1.0F;
	private static final float SPEED_MULTIPLIER_WHEN_TEMPTED = 0.9F;
	private static final float SPEED_WHEN_ATTACKING = 0.5F;
	private static final float ATTACK_KNOCKBACK_FORCE = 2.0F;
	private static final int TIME_BETWEEN_ATTACKS = 80;
	private static final double MAX_CHARGE_DISTANCE = 12.0;
	private static final double MAX_TARGET_DETECTION_DISTANCE = 11.0;

	public static List<ActivityData<ZombieNautilus>> getActivities() {
		return List.of(initCoreActivity(), initIdleActivity(), initFightActivity());
	}

	private static ActivityData<ZombieNautilus> initCoreActivity() {
		return ActivityData.create(
			Activity.CORE,
			0,
			ImmutableList.of(
				new LookAtTargetSink(45, 90),
				new MoveToTargetSink(),
				new CountDownCooldownTicks(MemoryModuleType.TEMPTATION_COOLDOWN_TICKS),
				new CountDownCooldownTicks(MemoryModuleType.CHARGE_COOLDOWN_TICKS),
				new CountDownCooldownTicks(MemoryModuleType.ATTACK_TARGET_COOLDOWN)
			)
		);
	}

	private static ActivityData<ZombieNautilus> initIdleActivity() {
		return ActivityData.create(
			Activity.IDLE,
			ImmutableList.of(
				Pair.of(1, new FollowTemptation(mob -> 0.9F, mob -> mob.isBaby() ? 2.5 : 3.5)),
				Pair.of(2, StartAttacking.create(NautilusAi::findNearestValidAttackTarget)),
				Pair.of(
					3,
					new GateBehavior<>(
						ImmutableMap.of(MemoryModuleType.WALK_TARGET, MemoryStatus.VALUE_ABSENT),
						ImmutableSet.of(),
						GateBehavior.OrderPolicy.ORDERED,
						GateBehavior.RunningPolicy.TRY_ALL,
						ImmutableList.of(Pair.of(RandomStroll.swim(1.0F), 2), Pair.of(SetWalkTargetFromLookTarget.create(1.0F, 3), 3))
					)
				)
			)
		);
	}

	private static ActivityData<ZombieNautilus> initFightActivity() {
		return ActivityData.create(
			Activity.FIGHT,
			ImmutableList.of(Pair.of(0, new ChargeAttack(80, NautilusAi.ATTACK_TARGET_CONDITIONS, 0.5F, 2.0F, 12.0, 11.0, SoundEvents.ZOMBIE_NAUTILUS_DASH))),
			ImmutableSet.of(
				Pair.of(MemoryModuleType.ATTACK_TARGET, MemoryStatus.VALUE_PRESENT),
				Pair.of(MemoryModuleType.TEMPTING_PLAYER, MemoryStatus.VALUE_ABSENT),
				Pair.of(MemoryModuleType.BREED_TARGET, MemoryStatus.VALUE_ABSENT),
				Pair.of(MemoryModuleType.CHARGE_COOLDOWN_TICKS, MemoryStatus.VALUE_ABSENT)
			)
		);
	}

	public static void updateActivity(final ZombieNautilus body) {
		body.getBrain().setActiveActivityToFirstValid(ImmutableList.of(Activity.FIGHT, Activity.IDLE));
	}
}