package net.minecraft.advancements.triggers;

import com.mojang.serialization.Codec;
import com.mojang.serialization.codecs.RecordCodecBuilder;
import java.util.Collection;
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.server.level.ServerPlayer;
import net.minecraft.world.entity.Entity;
import net.minecraft.world.entity.item.ItemEntity;
import net.minecraft.world.entity.projectile.FishingHook;
import net.minecraft.world.item.ItemInstance;
import net.minecraft.world.item.ItemStack;
import net.minecraft.world.level.storage.loot.LootContext;
import net.minecraft.world.level.storage.loot.Validatable;
import net.minecraft.world.level.storage.loot.ValidationContextSource;
import net.minecraft.world.level.storage.loot.parameters.LootContextParams;

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

	public void trigger(final ServerPlayer player, final ItemStack rod, final FishingHook hook, final Collection<ItemStack> items) {
		LootContext hookedInContext = EntityPredicate.createContext(player, (Entity)(hook.getHookedIn() != null ? hook.getHookedIn() : hook));
		this.trigger(player, t -> t.matches(rod, hookedInContext, items));
	}

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

		public static Criterion<FishingRodHookedTrigger.TriggerInstance> fishedItem(
			final Optional<ItemPredicate> rod, final Optional<EntityPredicate> entity, final Optional<ItemPredicate> item
		) {
			return CriteriaTriggers.FISHING_ROD_HOOKED
				.createCriterion(new FishingRodHookedTrigger.TriggerInstance(Optional.empty(), rod, EntityPredicate.wrap(entity), item));
		}

		public boolean matches(final ItemStack rod, final LootContext hookedIn, final Collection<ItemStack> items) {
			if (this.rod.isPresent() && !((ItemPredicate)this.rod.get()).test((ItemInstance)rod)) {
				return false;
			} else if (this.entity.isPresent() && !((ContextAwarePredicate)this.entity.get()).matches(hookedIn)) {
				return false;
			} else {
				if (this.item.isPresent()) {
					boolean matched = false;
					Entity hookedInEntity = hookedIn.getOptionalParameter(LootContextParams.THIS_ENTITY);
					if (hookedInEntity instanceof ItemEntity item && ((ItemPredicate)this.item.get()).test((ItemInstance)item.getItem())) {
						matched = true;
					}

					for (ItemStack item : items) {
						if (((ItemPredicate)this.item.get()).test((ItemInstance)item)) {
							matched = true;
							break;
						}
					}

					if (!matched) {
						return false;
					}
				}

				return true;
			}
		}

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