package net.minecraft.server.packs;

import java.io.IOException;
import java.io.InputStream;
import java.util.Optional;
import java.util.Set;
import java.util.function.BiConsumer;
import net.minecraft.resources.ResourceLocation;
import net.minecraft.server.packs.metadata.MetadataSectionType;
import net.minecraft.server.packs.repository.KnownPack;
import net.minecraft.server.packs.resources.IoSupplier;
import org.jetbrains.annotations.Nullable;

public interface PackResources extends AutoCloseable {
	String METADATA_EXTENSION = ".mcmeta";
	String PACK_META = "pack.mcmeta";

	@Nullable
	IoSupplier<InputStream> getRootResource(String... elements);

	@Nullable
	IoSupplier<InputStream> getResource(PackType packType, ResourceLocation location);

	void listResources(PackType packType, String namespace, String path, PackResources.ResourceOutput resourceOutput);

	Set<String> getNamespaces(PackType type);

	@Nullable
	<T> T getMetadataSection(MetadataSectionType<T> type) throws IOException;

	PackLocationInfo location();

	default String packId() {
		return this.location().id();
	}

	default Optional<KnownPack> knownPackInfo() {
		return this.location().knownPackInfo();
	}

	void close();

	@FunctionalInterface
	public interface ResourceOutput extends BiConsumer<ResourceLocation, IoSupplier<InputStream>> {
	}
}