package net.minecraft.advancements.critereon;

import com.mojang.serialization.Codec;
import com.mojang.serialization.codecs.RecordCodecBuilder;
import java.util.Optional;
import net.minecraft.advancements.CriteriaTriggers;
import net.minecraft.advancements.Criterion;
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;

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

	public void trigger(ServerPlayer player, Entity entity, DamageSource source) {
		LootContext lootContext = EntityPredicate.createContext(player, entity);
		this.trigger(player, triggerInstance -> triggerInstance.matches(player, lootContext, source));
	}

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

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

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

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

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

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

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

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

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

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

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

		@Override
		public void validate(CriterionValidator validator) {
			SimpleCriterionTrigger.SimpleInstance.super.validate(validator);
			validator.validateEntity(this.entityPredicate, ".entity");
		}
	}
}