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.ItemPredicate;
import net.minecraft.advancements.predicates.entity.EntityPredicate;
import net.minecraft.core.HolderGetter;
import net.minecraft.server.level.ServerPlayer;
import net.minecraft.world.item.Item;
import net.minecraft.world.item.ItemInstance;
import net.minecraft.world.item.ItemStack;
import net.minecraft.world.level.ItemLike;

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

	public void trigger(final ServerPlayer player, final ItemStack itemStack) {
		this.trigger(player, t -> t.matches(itemStack));
	}

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

		public static Criterion<ConsumeItemTrigger.TriggerInstance> usedItem() {
			return CriteriaTriggers.CONSUME_ITEM.createCriterion(new ConsumeItemTrigger.TriggerInstance(Optional.empty(), Optional.empty()));
		}

		public static Criterion<ConsumeItemTrigger.TriggerInstance> usedItem(final HolderGetter<Item> items, final ItemLike item) {
			return usedItem(ItemPredicate.Builder.item().of(items, item.asItem()));
		}

		public static Criterion<ConsumeItemTrigger.TriggerInstance> usedItem(final ItemPredicate.Builder predicate) {
			return CriteriaTriggers.CONSUME_ITEM.createCriterion(new ConsumeItemTrigger.TriggerInstance(Optional.empty(), Optional.of(predicate.build())));
		}

		public boolean matches(final ItemStack itemStack) {
			return this.item.isEmpty() || ((ItemPredicate)this.item.get()).test((ItemInstance)itemStack);
		}
	}
}