package net.minecraft.util.datafix.fixes;

import com.mojang.datafixers.DSL;
import com.mojang.datafixers.Typed;
import com.mojang.datafixers.schemas.Schema;
import com.mojang.serialization.Dynamic;
import java.util.List;

public class EntityShulkerRotationFix extends NamedEntityFix {
	public EntityShulkerRotationFix(final Schema outputSchema) {
		super(outputSchema, false, "EntityShulkerRotationFix", References.ENTITY, "minecraft:shulker");
	}

	public Dynamic<?> fixTag(final Dynamic<?> input) {
		List<Double> rotation = input.get("Rotation").asList(d -> d.asDouble(180.0));
		if (!rotation.isEmpty()) {
			rotation.set(0, (Double)rotation.get(0) - 180.0);
			return input.set("Rotation", input.createList(rotation.stream().map(input::createDouble)));
		} else {
			return input;
		}
	}

	@Override
	protected Typed<?> fix(final Typed<?> entity) {
		return entity.update(DSL.remainderFinder(), this::fixTag);
	}
}