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package cn.nukkit.entity.mob;

import cn.nukkit.Player;
import cn.nukkit.api.PowerNukkitOnly;
import cn.nukkit.api.PowerNukkitXOnly;
import cn.nukkit.api.Since;
import cn.nukkit.entity.EntitySmite;
import cn.nukkit.entity.ai.behavior.Behavior;
import cn.nukkit.entity.ai.behaviorgroup.BehaviorGroup;
import cn.nukkit.entity.ai.behaviorgroup.IBehaviorGroup;
import cn.nukkit.entity.ai.controller.LookController;
import cn.nukkit.entity.ai.controller.WalkController;
import cn.nukkit.entity.ai.evaluator.AllMatchEvaluator;
import cn.nukkit.entity.ai.evaluator.MemoryCheckNotEmptyEvaluator;
import cn.nukkit.entity.ai.executor.MeleeAttackExecutor;
import cn.nukkit.entity.ai.executor.RandomRoamExecutor;
import cn.nukkit.entity.ai.memory.AttackTargetMemory;
import cn.nukkit.entity.ai.memory.NearestPlayerMemory;
import cn.nukkit.entity.ai.route.SimpleFlatAStarRouteFinder;
import cn.nukkit.entity.ai.route.posevaluator.WalkingPosEvaluator;
import cn.nukkit.entity.ai.sensor.NearestPlayerSensor;
import cn.nukkit.event.entity.EntityDamageByEntityEvent;
import cn.nukkit.event.entity.EntityDamageEvent;
import cn.nukkit.level.Level;
import cn.nukkit.level.format.FullChunk;
import cn.nukkit.nbt.tag.CompoundTag;
import cn.nukkit.potion.Effect;

import java.util.Set;

/**
 * @author Dr. Nick Doran
 * @since 4/23/2017
 */
public class EntityZombie extends EntityWalkingMob implements EntitySmite {

    public static final int NETWORK_ID = 32;

    private IBehaviorGroup behaviorGroup;

    public EntityZombie(FullChunk chunk, CompoundTag nbt) {
        super(chunk, nbt);
    }

    @Override
    public IBehaviorGroup getBehaviorGroup() {
        if (behaviorGroup == null) {
            behaviorGroup = new BehaviorGroup(
                    this.tickSpread,
                    Set.of(),
                    Set.of(
                            new Behavior(new MeleeAttackExecutor(AttackTargetMemory.class, 0.15f, 40, true, 10), new AllMatchEvaluator(
                                    new MemoryCheckNotEmptyEvaluator(AttackTargetMemory.class),
                                    entity -> !entity.getMemoryStorage().notEmpty(AttackTargetMemory.class) || !(entity.getMemoryStorage().get(AttackTargetMemory.class).getData() instanceof Player player) || player.isSurvival()
                            ), 3, 1),
                            new Behavior(new MeleeAttackExecutor(NearestPlayerMemory.class, 0.15f, 40, false, 10), new AllMatchEvaluator(
                                    new MemoryCheckNotEmptyEvaluator(NearestPlayerMemory.class),
                                    entity -> {
                                        if (entity.getMemoryStorage().isEmpty(NearestPlayerMemory.class)) return true;
                                        Player player = entity.getMemoryStorage().get(NearestPlayerMemory.class).getData();
                                        return player.isSurvival();
                                    }
                            ), 2, 1),
                            new Behavior(new RandomRoamExecutor(0.15f, 12, 100, false, -1, true, 10), (entity -> true), 1, 1)
                    ),
                    Set.of(new NearestPlayerSensor(40, 0, 20)),
                    Set.of(new WalkController(), new LookController(true, true)),
                    new SimpleFlatAStarRouteFinder(new WalkingPosEvaluator(), this)
            );
        }
        return behaviorGroup;
    }

    @Override
    public int getNetworkId() {
        return NETWORK_ID;
    }

    @Override
    protected void initEntity() {
        super.initEntity();
        this.setMaxHealth(20);
        this.setHealth(20);
        if (this.diffHandDamage == null) {
            this.setDiffHandDamage(new float[]{2.5f, 3f, 4.5f});
        }
    }

    @Override
    public float getWidth() {
        return 0.6f;
    }

    @Override
    public float getHeight() {
        return 1.9f;
    }

    @PowerNukkitOnly
    @Since("1.5.1.0-PN")
    @Override
    public String getOriginalName() {
        return "Zombie";
    }

    @PowerNukkitOnly
    @Override
    public boolean isUndead() {
        return true;
    }

    @PowerNukkitOnly
    @Override
    public boolean isPreventingSleep(Player player) {
        return true;
    }

    @PowerNukkitXOnly
    @Override
    public boolean onUpdate(int currentTick) {
        if (this.getLevel().getDimension() == Level.DIMENSION_OVERWORLD)
            if (this.getLevel().getTime() > 0 && this.getLevel().getTime() <= 12000)
                if (!this.hasEffect(Effect.FIRE_RESISTANCE))
                    if (!this.isInsideOfWater())
                        if (!this.isUnderBlock())
                            if (!this.isOnFire())
                                this.setOnFire(1);
        return super.onUpdate(currentTick);
    }

    @Override
    public boolean attack(EntityDamageEvent source) {
        var result = super.attack(source);
        if (source instanceof EntityDamageByEntityEvent entityDamageByEntityEvent) {
            //更新仇恨目标
            getMemoryStorage().setData(AttackTargetMemory.class, entityDamageByEntityEvent.getDamager());
        }
        return result;
    }
}