package net.minecraft.advancements.critereon;

import com.mojang.serialization.Codec;
import com.mojang.serialization.MapCodec;
import com.mojang.serialization.codecs.RecordCodecBuilder;
import java.util.Optional;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.world.entity.Entity;
import net.minecraft.world.entity.animal.sheep.Sheep;
import net.minecraft.world.phys.Vec3;
import org.jetbrains.annotations.Nullable;

public record SheepPredicate(Optional<Boolean> sheared) implements EntitySubPredicate {
	public static final MapCodec<SheepPredicate> CODEC = RecordCodecBuilder.mapCodec(
		instance -> instance.group(Codec.BOOL.optionalFieldOf("sheared").forGetter(SheepPredicate::sheared)).apply(instance, SheepPredicate::new)
	);

	@Override
	public MapCodec<SheepPredicate> codec() {
		return EntitySubPredicates.SHEEP;
	}

	@Override
	public boolean matches(Entity entity, ServerLevel level, @Nullable Vec3 position) {
		return entity instanceof Sheep sheep ? !this.sheared.isPresent() || sheep.isSheared() == (Boolean)this.sheared.get() : false;
	}

	public static SheepPredicate hasWool() {
		return new SheepPredicate(Optional.of(false));
	}
}