package net.minecraft.util.datafix.fixes;

import com.mojang.datafixers.DSL;
import com.mojang.datafixers.DataFix;
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.datafixers.util.Pair;
import com.mojang.serialization.Dynamic;
import com.mojang.serialization.OptionalDynamic;
import java.util.Optional;
import java.util.Set;
import java.util.function.Predicate;
import net.minecraft.util.datafix.ComponentDataFixUtils;
import net.minecraft.util.datafix.schemas.NamespacedSchema;

public class ItemStackCustomNameToOverrideComponentFix extends DataFix {
	private static final Set<String> MAP_NAMES = Set.of(
		"filled_map.buried_treasure",
		"filled_map.explorer_jungle",
		"filled_map.explorer_swamp",
		"filled_map.mansion",
		"filled_map.monument",
		"filled_map.trial_chambers",
		"filled_map.village_desert",
		"filled_map.village_plains",
		"filled_map.village_savanna",
		"filled_map.village_snowy",
		"filled_map.village_taiga"
	);

	public ItemStackCustomNameToOverrideComponentFix(Schema outputSchema) {
		super(outputSchema, false);
	}

	@Override
	public final TypeRewriteRule makeRule() {
		Type<?> type = this.getInputSchema().getType(References.ITEM_STACK);
		OpticFinder<Pair<String, String>> opticFinder = DSL.fieldFinder("id", DSL.named(References.ITEM_NAME.typeName(), NamespacedSchema.namespacedString()));
		OpticFinder<?> opticFinder2 = type.findField("components");
		return this.fixTypeEverywhereTyped(
			"ItemStack custom_name to item_name component fix",
			type,
			typed -> {
				Optional<Pair<String, String>> optional = typed.getOptional(opticFinder);
				Optional<String> optional2 = optional.map(Pair::getSecond);
				if (optional2.filter(string -> string.equals("minecraft:white_banner")).isPresent()) {
					return typed.updateTyped(opticFinder2, typedx -> typedx.update(DSL.remainderFinder(), ItemStackCustomNameToOverrideComponentFix::fixBanner));
				} else {
					return optional2.filter(string -> string.equals("minecraft:filled_map")).isPresent()
						? typed.updateTyped(opticFinder2, typedx -> typedx.update(DSL.remainderFinder(), ItemStackCustomNameToOverrideComponentFix::fixMap))
						: typed;
				}
			}
		);
	}

	private static <T> Dynamic<T> fixMap(Dynamic<T> data) {
		return fixCustomName(data, MAP_NAMES::contains);
	}

	private static <T> Dynamic<T> fixBanner(Dynamic<T> data) {
		return fixCustomName(data, string -> string.equals("block.minecraft.ominous_banner"));
	}

	private static <T> Dynamic<T> fixCustomName(Dynamic<T> data, Predicate<String> shouldFix) {
		OptionalDynamic<T> optionalDynamic = data.get("minecraft:custom_name");
		Optional<String> optional = optionalDynamic.asString().result().flatMap(ComponentDataFixUtils::extractTranslationString).filter(shouldFix);
		return optional.isPresent() ? data.renameField("minecraft:custom_name", "minecraft:item_name") : data;
	}
}