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.datafixers.types.Type;
import com.mojang.datafixers.util.Pair;
import com.mojang.serialization.Dynamic;
import java.util.Objects;
import net.minecraft.util.Util;

public class EntityHorseSplitFix extends EntityRenameFix {
	public EntityHorseSplitFix(final Schema outputSchema, final boolean changesType) {
		super("EntityHorseSplitFix", outputSchema, changesType);
	}

	@Override
	protected Pair<String, Typed<?>> fix(final String name, final Typed<?> entity) {
		if (Objects.equals("EntityHorse", name)) {
			Dynamic<?> tag = entity.get(DSL.remainderFinder());
			int type = tag.get("Type").asInt(0);

			String newName = switch (type) {
				case 1 -> "Donkey";
				case 2 -> "Mule";
				case 3 -> "ZombieHorse";
				case 4 -> "SkeletonHorse";
				default -> "Horse";
			};
			Type<?> newType = (Type<?>)this.getOutputSchema().findChoiceType(References.ENTITY).types().get(newName);
			return Pair.of(newName, Util.writeAndReadTypedOrThrow(entity, newType, dynamic -> dynamic.remove("Type")));
		} else {
			return Pair.of(name, entity);
		}
	}
}