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.entity.EntityPredicate;
import net.minecraft.server.level.ServerPlayer;
import net.minecraft.world.entity.animal.Animal;
import net.minecraft.world.level.storage.loot.LootContext;
import net.minecraft.world.level.storage.loot.Validatable;
import net.minecraft.world.level.storage.loot.ValidationContextSource;

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

	public void trigger(final ServerPlayer player, final Animal animal) {
		LootContext animalContext = EntityPredicate.createContext(player, animal);
		this.trigger(player, t -> t.matches(animalContext));
	}

	public record TriggerInstance(Optional<ContextAwarePredicate> player, Optional<ContextAwarePredicate> entity) implements SimpleCriterionTrigger.SimpleInstance {
		public static final Codec<TameAnimalTrigger.TriggerInstance> CODEC = RecordCodecBuilder.create(
			i -> i.group(
					EntityPredicate.ADVANCEMENT_CODEC.optionalFieldOf("player").forGetter(TameAnimalTrigger.TriggerInstance::player),
					EntityPredicate.ADVANCEMENT_CODEC.optionalFieldOf("entity").forGetter(TameAnimalTrigger.TriggerInstance::entity)
				)
				.apply(i, 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(final EntityPredicate.Builder entity) {
			return CriteriaTriggers.TAME_ANIMAL.createCriterion(new TameAnimalTrigger.TriggerInstance(Optional.empty(), Optional.of(EntityPredicate.wrap(entity))));
		}

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

		@Override
		public void validate(final ValidationContextSource validator) {
			SimpleCriterionTrigger.SimpleInstance.super.validate(validator);
			Validatable.validate(validator.entityContext(), "entity", this.entity);
		}
	}
}