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

	public void trigger(final ServerPlayer player, final Entity entity, final DamageSource killingBlow) {
		LootContext entityContext = EntityPredicate.createContext(player, entity);
		this.trigger(player, t -> t.matches(player, entityContext, killingBlow));
	}

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

		public static Criterion<KilledTrigger.TriggerInstance> playerKilledEntity(final Optional<EntityPredicate> entity) {
			return CriteriaTriggers.PLAYER_KILLED_ENTITY
				.createCriterion(new KilledTrigger.TriggerInstance(Optional.empty(), EntityPredicate.wrap(entity), Optional.empty()));
		}

		public static Criterion<KilledTrigger.TriggerInstance> playerKilledEntity(final EntityPredicate.Builder entity) {
			return CriteriaTriggers.PLAYER_KILLED_ENTITY
				.createCriterion(new KilledTrigger.TriggerInstance(Optional.empty(), Optional.of(EntityPredicate.wrap(entity)), Optional.empty()));
		}

		public static Criterion<KilledTrigger.TriggerInstance> playerKilledEntity() {
			return CriteriaTriggers.PLAYER_KILLED_ENTITY.createCriterion(new KilledTrigger.TriggerInstance(Optional.empty(), Optional.empty(), Optional.empty()));
		}

		public static Criterion<KilledTrigger.TriggerInstance> playerKilledEntity(
			final Optional<EntityPredicate> entity, final Optional<DamageSourcePredicate> killingBlow
		) {
			return CriteriaTriggers.PLAYER_KILLED_ENTITY.createCriterion(new KilledTrigger.TriggerInstance(Optional.empty(), EntityPredicate.wrap(entity), killingBlow));
		}

		public static Criterion<KilledTrigger.TriggerInstance> playerKilledEntity(
			final EntityPredicate.Builder entity, final Optional<DamageSourcePredicate> killingBlow
		) {
			return CriteriaTriggers.PLAYER_KILLED_ENTITY
				.createCriterion(new KilledTrigger.TriggerInstance(Optional.empty(), Optional.of(EntityPredicate.wrap(entity)), killingBlow));
		}

		public static Criterion<KilledTrigger.TriggerInstance> playerKilledEntity(
			final Optional<EntityPredicate> entity, final DamageSourcePredicate.Builder killingBlow
		) {
			return CriteriaTriggers.PLAYER_KILLED_ENTITY
				.createCriterion(new KilledTrigger.TriggerInstance(Optional.empty(), EntityPredicate.wrap(entity), Optional.of(killingBlow.build())));
		}

		public static Criterion<KilledTrigger.TriggerInstance> playerKilledEntity(
			final EntityPredicate.Builder entity, final DamageSourcePredicate.Builder killingBlow
		) {
			return CriteriaTriggers.PLAYER_KILLED_ENTITY
				.createCriterion(new KilledTrigger.TriggerInstance(Optional.empty(), Optional.of(EntityPredicate.wrap(entity)), Optional.of(killingBlow.build())));
		}

		public static Criterion<KilledTrigger.TriggerInstance> playerKilledEntityNearSculkCatalyst() {
			return CriteriaTriggers.KILL_MOB_NEAR_SCULK_CATALYST
				.createCriterion(new KilledTrigger.TriggerInstance(Optional.empty(), Optional.empty(), Optional.empty()));
		}

		public static Criterion<KilledTrigger.TriggerInstance> entityKilledPlayer(final Optional<EntityPredicate> entity) {
			return CriteriaTriggers.ENTITY_KILLED_PLAYER
				.createCriterion(new KilledTrigger.TriggerInstance(Optional.empty(), EntityPredicate.wrap(entity), Optional.empty()));
		}

		public static Criterion<KilledTrigger.TriggerInstance> entityKilledPlayer(final EntityPredicate.Builder entity) {
			return CriteriaTriggers.ENTITY_KILLED_PLAYER
				.createCriterion(new KilledTrigger.TriggerInstance(Optional.empty(), Optional.of(EntityPredicate.wrap(entity)), Optional.empty()));
		}

		public static Criterion<KilledTrigger.TriggerInstance> entityKilledPlayer() {
			return CriteriaTriggers.ENTITY_KILLED_PLAYER.createCriterion(new KilledTrigger.TriggerInstance(Optional.empty(), Optional.empty(), Optional.empty()));
		}

		public static Criterion<KilledTrigger.TriggerInstance> entityKilledPlayer(
			final Optional<EntityPredicate> entity, final Optional<DamageSourcePredicate> killingBlow
		) {
			return CriteriaTriggers.ENTITY_KILLED_PLAYER.createCriterion(new KilledTrigger.TriggerInstance(Optional.empty(), EntityPredicate.wrap(entity), killingBlow));
		}

		public static Criterion<KilledTrigger.TriggerInstance> entityKilledPlayer(
			final EntityPredicate.Builder entity, final Optional<DamageSourcePredicate> killingBlow
		) {
			return CriteriaTriggers.ENTITY_KILLED_PLAYER
				.createCriterion(new KilledTrigger.TriggerInstance(Optional.empty(), Optional.of(EntityPredicate.wrap(entity)), killingBlow));
		}

		public static Criterion<KilledTrigger.TriggerInstance> entityKilledPlayer(
			final Optional<EntityPredicate> entity, final DamageSourcePredicate.Builder killingBlow
		) {
			return CriteriaTriggers.ENTITY_KILLED_PLAYER
				.createCriterion(new KilledTrigger.TriggerInstance(Optional.empty(), EntityPredicate.wrap(entity), Optional.of(killingBlow.build())));
		}

		public static Criterion<KilledTrigger.TriggerInstance> entityKilledPlayer(
			final EntityPredicate.Builder entity, final DamageSourcePredicate.Builder killingBlow
		) {
			return CriteriaTriggers.ENTITY_KILLED_PLAYER
				.createCriterion(new KilledTrigger.TriggerInstance(Optional.empty(), Optional.of(EntityPredicate.wrap(entity)), Optional.of(killingBlow.build())));
		}

		public boolean matches(final ServerPlayer player, final LootContext entity, final DamageSource killingBlow) {
			return this.killingBlow.isPresent() && !((DamageSourcePredicate)this.killingBlow.get()).matches(player, killingBlow)
				? false
				: this.entity.isEmpty() || ((ContextAwarePredicate)this.entity.get()).matches(entity);
		}

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