package net.minecraft.util.datafix.fixes;

import com.mojang.datafixers.DSL;
import com.mojang.datafixers.DataFix;
import com.mojang.datafixers.DataFixUtils;
import com.mojang.datafixers.OpticFinder;
import com.mojang.datafixers.TypeRewriteRule;
import com.mojang.datafixers.schemas.Schema;
import com.mojang.datafixers.types.Type;
import com.mojang.serialization.Dynamic;
import java.util.stream.Stream;
import net.minecraft.util.datafix.ComponentDataFixUtils;

public class ItemLoreFix extends DataFix {
	public ItemLoreFix(Schema outputSchema, boolean changesType) {
		super(outputSchema, changesType);
	}

	@Override
	protected TypeRewriteRule makeRule() {
		Type<?> type = this.getInputSchema().getType(References.ITEM_STACK);
		OpticFinder<?> opticFinder = type.findField("tag");
		return this.fixTypeEverywhereTyped(
			"Item Lore componentize",
			type,
			typed -> typed.updateTyped(
				opticFinder,
				typedx -> typedx.update(
					DSL.remainderFinder(),
					dynamic -> dynamic.update(
						"display",
						dynamicx -> dynamicx.update(
							"Lore", dynamicxx -> DataFixUtils.orElse(dynamicxx.asStreamOpt().map(ItemLoreFix::fixLoreList).map(dynamicxx::createList).result(), dynamicxx)
						)
					)
				)
			)
		);
	}

	private static <T> Stream<Dynamic<T>> fixLoreList(Stream<Dynamic<T>> loreListTags) {
		return loreListTags.map(ComponentDataFixUtils::wrapLiteralStringAsComponent);
	}
}