package net.minecraft.advancements.critereon;

import com.google.common.collect.ImmutableList;
import com.mojang.serialization.Codec;
import com.mojang.serialization.codecs.RecordCodecBuilder;
import java.util.List;
import java.util.Optional;
import net.minecraft.core.registries.Registries;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.server.level.ServerPlayer;
import net.minecraft.world.damagesource.DamageSource;
import net.minecraft.world.damagesource.DamageType;
import net.minecraft.world.phys.Vec3;

public record DamageSourcePredicate(
	List<TagPredicate<DamageType>> tags, Optional<EntityPredicate> directEntity, Optional<EntityPredicate> sourceEntity, Optional<Boolean> isDirect
) {
	public static final Codec<DamageSourcePredicate> CODEC = RecordCodecBuilder.create(
		instance -> instance.group(
				TagPredicate.codec(Registries.DAMAGE_TYPE).listOf().optionalFieldOf("tags", List.of()).forGetter(DamageSourcePredicate::tags),
				EntityPredicate.CODEC.optionalFieldOf("direct_entity").forGetter(DamageSourcePredicate::directEntity),
				EntityPredicate.CODEC.optionalFieldOf("source_entity").forGetter(DamageSourcePredicate::sourceEntity),
				Codec.BOOL.optionalFieldOf("is_direct").forGetter(DamageSourcePredicate::isDirect)
			)
			.apply(instance, DamageSourcePredicate::new)
	);

	public boolean matches(ServerPlayer player, DamageSource source) {
		return this.matches(player.serverLevel(), player.position(), source);
	}

	public boolean matches(ServerLevel level, Vec3 position, DamageSource source) {
		for (TagPredicate<DamageType> tagPredicate : this.tags) {
			if (!tagPredicate.matches(source.typeHolder())) {
				return false;
			}
		}

		if (this.directEntity.isPresent() && !((EntityPredicate)this.directEntity.get()).matches(level, position, source.getDirectEntity())) {
			return false;
		} else {
			return this.sourceEntity.isPresent() && !((EntityPredicate)this.sourceEntity.get()).matches(level, position, source.getEntity())
				? false
				: !this.isDirect.isPresent() || (Boolean)this.isDirect.get() == source.isDirect();
		}
	}

	public static class Builder {
		private final ImmutableList.Builder<TagPredicate<DamageType>> tags = ImmutableList.builder();
		private Optional<EntityPredicate> directEntity = Optional.empty();
		private Optional<EntityPredicate> sourceEntity = Optional.empty();
		private Optional<Boolean> isDirect = Optional.empty();

		public static DamageSourcePredicate.Builder damageType() {
			return new DamageSourcePredicate.Builder();
		}

		public DamageSourcePredicate.Builder tag(TagPredicate<DamageType> tag) {
			this.tags.add(tag);
			return this;
		}

		public DamageSourcePredicate.Builder direct(EntityPredicate.Builder directEntity) {
			this.directEntity = Optional.of(directEntity.build());
			return this;
		}

		public DamageSourcePredicate.Builder source(EntityPredicate.Builder sourceEntity) {
			this.sourceEntity = Optional.of(sourceEntity.build());
			return this;
		}

		public DamageSourcePredicate.Builder isDirect(boolean isDirect) {
			this.isDirect = Optional.of(isDirect);
			return this;
		}

		public DamageSourcePredicate build() {
			return new DamageSourcePredicate(this.tags.build(), this.directEntity, this.sourceEntity, this.isDirect);
		}
	}
}