package net.minecraft.world.entity.monster.illager;

import java.util.EnumSet;
import java.util.function.Predicate;
import net.minecraft.network.chat.Component;
import net.minecraft.resources.ResourceKey;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.sounds.SoundEvent;
import net.minecraft.sounds.SoundEvents;
import net.minecraft.util.RandomSource;
import net.minecraft.world.Difficulty;
import net.minecraft.world.DifficultyInstance;
import net.minecraft.world.damagesource.DamageSource;
import net.minecraft.world.entity.EntitySpawnReason;
import net.minecraft.world.entity.EntityType;
import net.minecraft.world.entity.EquipmentSlot;
import net.minecraft.world.entity.LivingEntity;
import net.minecraft.world.entity.Mob;
import net.minecraft.world.entity.SpawnGroupData;
import net.minecraft.world.entity.ai.attributes.AttributeSupplier;
import net.minecraft.world.entity.ai.attributes.Attributes;
import net.minecraft.world.entity.ai.goal.AvoidEntityGoal;
import net.minecraft.world.entity.ai.goal.BreakDoorGoal;
import net.minecraft.world.entity.ai.goal.FloatGoal;
import net.minecraft.world.entity.ai.goal.Goal;
import net.minecraft.world.entity.ai.goal.LookAtPlayerGoal;
import net.minecraft.world.entity.ai.goal.MeleeAttackGoal;
import net.minecraft.world.entity.ai.goal.RandomStrollGoal;
import net.minecraft.world.entity.ai.goal.target.HurtByTargetGoal;
import net.minecraft.world.entity.ai.goal.target.NearestAttackableTargetGoal;
import net.minecraft.world.entity.ai.util.GoalUtils;
import net.minecraft.world.entity.animal.golem.IronGolem;
import net.minecraft.world.entity.monster.Monster;
import net.minecraft.world.entity.monster.creaking.Creaking;
import net.minecraft.world.entity.npc.villager.AbstractVillager;
import net.minecraft.world.entity.player.Player;
import net.minecraft.world.entity.raid.Raid;
import net.minecraft.world.entity.raid.Raider;
import net.minecraft.world.item.ItemStack;
import net.minecraft.world.item.Items;
import net.minecraft.world.item.enchantment.EnchantmentHelper;
import net.minecraft.world.item.enchantment.providers.EnchantmentProvider;
import net.minecraft.world.item.enchantment.providers.VanillaEnchantmentProviders;
import net.minecraft.world.level.Level;
import net.minecraft.world.level.ServerLevelAccessor;
import net.minecraft.world.level.storage.ValueInput;
import net.minecraft.world.level.storage.ValueOutput;
import org.jspecify.annotations.Nullable;

public class Vindicator extends AbstractIllager {
	private static final String TAG_JOHNNY = "Johnny";
	private static final Predicate<Difficulty> DOOR_BREAKING_PREDICATE = d -> d == Difficulty.NORMAL || d == Difficulty.HARD;
	private static final boolean DEFAULT_JOHNNY = false;
	private boolean isJohnny = false;

	public Vindicator(final EntityType<? extends Vindicator> type, final Level level) {
		super(type, level);
	}

	@Override
	protected void registerGoals() {
		super.registerGoals();
		this.goalSelector.addGoal(0, new FloatGoal(this));
		this.goalSelector.addGoal(1, new AvoidEntityGoal(this, Creaking.class, 8.0F, 1.0, 1.2));
		this.goalSelector.addGoal(2, new Vindicator.VindicatorBreakDoorGoal(this));
		this.goalSelector.addGoal(3, new AbstractIllager.RaiderOpenDoorGoal(this));
		this.goalSelector.addGoal(4, new Raider.HoldGroundAttackGoal(this, 10.0F));
		this.goalSelector.addGoal(5, new MeleeAttackGoal(this, 1.0, false));
		this.targetSelector.addGoal(1, new HurtByTargetGoal(this, Raider.class).setAlertOthers());
		this.targetSelector.addGoal(2, new NearestAttackableTargetGoal(this, Player.class, true));
		this.targetSelector.addGoal(3, new NearestAttackableTargetGoal(this, AbstractVillager.class, true));
		this.targetSelector.addGoal(3, new NearestAttackableTargetGoal(this, IronGolem.class, true));
		this.targetSelector.addGoal(4, new Vindicator.VindicatorJohnnyAttackGoal(this));
		this.goalSelector.addGoal(8, new RandomStrollGoal(this, 0.6));
		this.goalSelector.addGoal(9, new LookAtPlayerGoal(this, Player.class, 3.0F, 1.0F));
		this.goalSelector.addGoal(10, new LookAtPlayerGoal(this, Mob.class, 8.0F));
	}

	@Override
	protected void customServerAiStep(final ServerLevel level) {
		if (!this.isNoAi() && GoalUtils.hasGroundPathNavigation(this)) {
			boolean canOpenDoors = level.isRaided(this.blockPosition());
			this.getNavigation().setCanOpenDoors(canOpenDoors);
		}

		super.customServerAiStep(level);
	}

	public static AttributeSupplier.Builder createAttributes() {
		return Monster.createMonsterAttributes()
			.add(Attributes.MOVEMENT_SPEED, 0.35F)
			.add(Attributes.FOLLOW_RANGE, 12.0)
			.add(Attributes.MAX_HEALTH, 24.0)
			.add(Attributes.ATTACK_DAMAGE, 5.0);
	}

	@Override
	protected void addAdditionalSaveData(final ValueOutput output) {
		super.addAdditionalSaveData(output);
		if (this.isJohnny) {
			output.putBoolean("Johnny", true);
		}
	}

	@Override
	public AbstractIllager.IllagerArmPose getArmPose() {
		if (this.isAggressive()) {
			return AbstractIllager.IllagerArmPose.ATTACKING;
		} else {
			return this.isCelebrating() ? AbstractIllager.IllagerArmPose.CELEBRATING : AbstractIllager.IllagerArmPose.CROSSED;
		}
	}

	@Override
	protected void readAdditionalSaveData(final ValueInput input) {
		super.readAdditionalSaveData(input);
		this.isJohnny = input.getBooleanOr("Johnny", false);
	}

	@Override
	public SoundEvent getCelebrateSound() {
		return SoundEvents.VINDICATOR_CELEBRATE;
	}

	@Nullable
	@Override
	public SpawnGroupData finalizeSpawn(
		final ServerLevelAccessor level, final DifficultyInstance difficulty, final EntitySpawnReason spawnReason, @Nullable final SpawnGroupData groupData
	) {
		SpawnGroupData spawnGroupData = super.finalizeSpawn(level, difficulty, spawnReason, groupData);
		this.getNavigation().setCanOpenDoors(true);
		RandomSource random = level.getRandom();
		this.populateDefaultEquipmentSlots(random, difficulty);
		this.populateDefaultEquipmentEnchantments(level, random, difficulty);
		return spawnGroupData;
	}

	@Override
	protected void populateDefaultEquipmentSlots(final RandomSource random, final DifficultyInstance difficulty) {
		if (this.getCurrentRaid() == null) {
			this.setItemSlot(EquipmentSlot.MAINHAND, new ItemStack(Items.IRON_AXE));
		}
	}

	@Override
	public void setCustomName(@Nullable final Component name) {
		super.setCustomName(name);
		if (!this.isJohnny && name != null && name.getString().equals("Johnny")) {
			this.isJohnny = true;
		}
	}

	@Override
	protected SoundEvent getAmbientSound() {
		return SoundEvents.VINDICATOR_AMBIENT;
	}

	@Override
	protected SoundEvent getDeathSound() {
		return SoundEvents.VINDICATOR_DEATH;
	}

	@Override
	protected SoundEvent getHurtSound(final DamageSource source) {
		return SoundEvents.VINDICATOR_HURT;
	}

	@Override
	public void applyRaidBuffs(final ServerLevel level, final int wave, final boolean isCaptain) {
		ItemStack axe = new ItemStack(Items.IRON_AXE);
		Raid raid = this.getCurrentRaid();
		boolean shouldEnchant = this.random.nextFloat() <= raid.getEnchantOdds();
		if (shouldEnchant) {
			ResourceKey<EnchantmentProvider> provider = wave > raid.getNumGroups(Difficulty.NORMAL)
				? VanillaEnchantmentProviders.RAID_VINDICATOR_POST_WAVE_5
				: VanillaEnchantmentProviders.RAID_VINDICATOR;
			EnchantmentHelper.enchantItemFromProvider(axe, level.registryAccess(), provider, level.getCurrentDifficultyAt(this.blockPosition()), this.random);
		}

		this.setItemSlot(EquipmentSlot.MAINHAND, axe);
	}

	private static class VindicatorBreakDoorGoal extends BreakDoorGoal {
		public VindicatorBreakDoorGoal(final Mob mob) {
			super(mob, 6, Vindicator.DOOR_BREAKING_PREDICATE);
			this.setFlags(EnumSet.of(Goal.Flag.MOVE));
		}

		@Override
		public boolean canContinueToUse() {
			Vindicator vindicator = (Vindicator)this.mob;
			return vindicator.hasActiveRaid() && super.canContinueToUse();
		}

		@Override
		public boolean canUse() {
			Vindicator vindicator = (Vindicator)this.mob;
			return vindicator.hasActiveRaid() && vindicator.random.nextInt(reducedTickDelay(10)) == 0 && super.canUse();
		}

		@Override
		public void start() {
			super.start();
			this.mob.setNoActionTime(0);
		}
	}

	private static class VindicatorJohnnyAttackGoal extends NearestAttackableTargetGoal<LivingEntity> {
		public VindicatorJohnnyAttackGoal(final Vindicator mob) {
			super(mob, LivingEntity.class, 0, true, true, (target, level) -> target.attackable());
		}

		@Override
		public boolean canUse() {
			return ((Vindicator)this.mob).isJohnny && super.canUse();
		}

		@Override
		public void start() {
			super.start();
			this.mob.setNoActionTime(0);
		}
	}
}