package net.minecraft.advancements.critereon;

import com.mojang.serialization.Codec;
import com.mojang.serialization.codecs.RecordCodecBuilder;
import java.util.Optional;
import net.minecraft.advancements.CriteriaTriggers;
import net.minecraft.advancements.Criterion;
import net.minecraft.server.level.ServerPlayer;
import net.minecraft.world.entity.animal.Animal;
import net.minecraft.world.level.storage.loot.LootContext;

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

	public void trigger(ServerPlayer player, Animal entity) {
		LootContext lootContext = EntityPredicate.createContext(player, entity);
		this.trigger(player, triggerInstance -> triggerInstance.matches(lootContext));
	}

	public record TriggerInstance(Optional<ContextAwarePredicate> player, Optional<ContextAwarePredicate> entity) implements SimpleCriterionTrigger.SimpleInstance {
		public static final Codec<TameAnimalTrigger.TriggerInstance> CODEC = RecordCodecBuilder.create(
			instance -> instance.group(
					EntityPredicate.ADVANCEMENT_CODEC.optionalFieldOf("player").forGetter(TameAnimalTrigger.TriggerInstance::player),
					EntityPredicate.ADVANCEMENT_CODEC.optionalFieldOf("entity").forGetter(TameAnimalTrigger.TriggerInstance::entity)
				)
				.apply(instance, TameAnimalTrigger.TriggerInstance::new)
		);

		public static Criterion<TameAnimalTrigger.TriggerInstance> tamedAnimal() {
			return CriteriaTriggers.TAME_ANIMAL.createCriterion(new TameAnimalTrigger.TriggerInstance(Optional.empty(), Optional.empty()));
		}

		public static Criterion<TameAnimalTrigger.TriggerInstance> tamedAnimal(EntityPredicate.Builder entity) {
			return CriteriaTriggers.TAME_ANIMAL.createCriterion(new TameAnimalTrigger.TriggerInstance(Optional.empty(), Optional.of(EntityPredicate.wrap(entity))));
		}

		public boolean matches(LootContext lootContext) {
			return this.entity.isEmpty() || ((ContextAwarePredicate)this.entity.get()).matches(lootContext);
		}

		@Override
		public void validate(CriterionValidator validator) {
			SimpleCriterionTrigger.SimpleInstance.super.validate(validator);
			validator.validateEntity(this.entity, ".entity");
		}
	}
}