package net.minecraft.advancements.triggers;

import com.mojang.serialization.Codec;
import com.mojang.serialization.codecs.RecordCodecBuilder;
import java.util.Optional;
import net.minecraft.advancements.predicates.ContextAwarePredicate;
import net.minecraft.advancements.predicates.MinMaxBounds;
import net.minecraft.advancements.predicates.entity.EntityPredicate;
import net.minecraft.core.BlockPos;
import net.minecraft.server.level.ServerPlayer;

public class UsedEnderEyeTrigger extends SimpleCriterionTrigger<UsedEnderEyeTrigger.TriggerInstance> {
	@Override
	public Codec<UsedEnderEyeTrigger.TriggerInstance> codec() {
		return UsedEnderEyeTrigger.TriggerInstance.CODEC;
	}

	public void trigger(final ServerPlayer player, final BlockPos feature) {
		double xd = player.getX() - feature.getX();
		double zd = player.getZ() - feature.getZ();
		double sqrDist = xd * xd + zd * zd;
		this.trigger(player, t -> t.matches(sqrDist));
	}

	public record TriggerInstance(Optional<ContextAwarePredicate> player, MinMaxBounds.Doubles distance) implements SimpleCriterionTrigger.SimpleInstance {
		public static final Codec<UsedEnderEyeTrigger.TriggerInstance> CODEC = RecordCodecBuilder.create(
			i -> i.group(
					EntityPredicate.ADVANCEMENT_CODEC.optionalFieldOf("player").forGetter(UsedEnderEyeTrigger.TriggerInstance::player),
					MinMaxBounds.Doubles.CODEC.optionalFieldOf("distance", MinMaxBounds.Doubles.ANY).forGetter(UsedEnderEyeTrigger.TriggerInstance::distance)
				)
				.apply(i, UsedEnderEyeTrigger.TriggerInstance::new)
		);

		public boolean matches(final double sqrDistance) {
			return this.distance.matchesSqr(sqrDistance);
		}
	}
}