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.DamagePredicate;
import net.minecraft.advancements.predicates.entity.EntityPredicate;
import net.minecraft.server.level.ServerPlayer;
import net.minecraft.world.damagesource.DamageSource;
import net.minecraft.world.entity.Entity;
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 PlayerHurtEntityTrigger extends SimpleCriterionTrigger<PlayerHurtEntityTrigger.TriggerInstance> {
	@Override
	public Codec<PlayerHurtEntityTrigger.TriggerInstance> codec() {
		return PlayerHurtEntityTrigger.TriggerInstance.CODEC;
	}

	public void trigger(
		final ServerPlayer player, final Entity victim, final DamageSource source, final float originalDamage, final float actualDamage, final boolean blocked
	) {
		LootContext victimContext = EntityPredicate.createContext(player, victim);
		this.trigger(player, t -> t.matches(player, victimContext, source, originalDamage, actualDamage, blocked));
	}

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

		public static Criterion<PlayerHurtEntityTrigger.TriggerInstance> playerHurtEntity() {
			return CriteriaTriggers.PLAYER_HURT_ENTITY
				.createCriterion(new PlayerHurtEntityTrigger.TriggerInstance(Optional.empty(), Optional.empty(), Optional.empty()));
		}

		public static Criterion<PlayerHurtEntityTrigger.TriggerInstance> playerHurtEntityWithDamage(final Optional<DamagePredicate> damage) {
			return CriteriaTriggers.PLAYER_HURT_ENTITY.createCriterion(new PlayerHurtEntityTrigger.TriggerInstance(Optional.empty(), damage, Optional.empty()));
		}

		public static Criterion<PlayerHurtEntityTrigger.TriggerInstance> playerHurtEntityWithDamage(final DamagePredicate.Builder damage) {
			return CriteriaTriggers.PLAYER_HURT_ENTITY
				.createCriterion(new PlayerHurtEntityTrigger.TriggerInstance(Optional.empty(), Optional.of(damage.build()), Optional.empty()));
		}

		public static Criterion<PlayerHurtEntityTrigger.TriggerInstance> playerHurtEntity(final Optional<EntityPredicate> entity) {
			return CriteriaTriggers.PLAYER_HURT_ENTITY
				.createCriterion(new PlayerHurtEntityTrigger.TriggerInstance(Optional.empty(), Optional.empty(), EntityPredicate.wrap(entity)));
		}

		public static Criterion<PlayerHurtEntityTrigger.TriggerInstance> playerHurtEntity(
			final Optional<DamagePredicate> damage, final Optional<EntityPredicate> entity
		) {
			return CriteriaTriggers.PLAYER_HURT_ENTITY
				.createCriterion(new PlayerHurtEntityTrigger.TriggerInstance(Optional.empty(), damage, EntityPredicate.wrap(entity)));
		}

		public static Criterion<PlayerHurtEntityTrigger.TriggerInstance> playerHurtEntity(
			final DamagePredicate.Builder damage, final Optional<EntityPredicate> entity
		) {
			return CriteriaTriggers.PLAYER_HURT_ENTITY
				.createCriterion(new PlayerHurtEntityTrigger.TriggerInstance(Optional.empty(), Optional.of(damage.build()), EntityPredicate.wrap(entity)));
		}

		public boolean matches(
			final ServerPlayer player, final LootContext victim, final DamageSource source, final float originalDamage, final float actualDamage, final boolean blocked
		) {
			return this.damage.isPresent() && !((DamagePredicate)this.damage.get()).matches(player, source, originalDamage, actualDamage, blocked)
				? false
				: !this.entity.isPresent() || ((ContextAwarePredicate)this.entity.get()).matches(victim);
		}

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