/*
 * Copyright (C) 2022 NotEnoughUpdates contributors
 *
 * This file is part of NotEnoughUpdates.
 *
 * NotEnoughUpdates is free software: you can redistribute it
 * and/or modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation, either
 * version 3 of the License, or (at your option) any later version.
 *
 * NotEnoughUpdates is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with NotEnoughUpdates. If not, see <https://www.gnu.org/licenses/>.
 */

package io.github.moulberry.notenoughupdates;

import com.google.gson.JsonObject;
import net.minecraft.client.resources.IResourcePack;
import net.minecraft.client.resources.data.IMetadataSection;
import net.minecraft.client.resources.data.IMetadataSerializer;
import net.minecraft.util.ResourceLocation;

import java.awt.image.BufferedImage;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashSet;
import java.util.Set;

public class NEURepoResourcePack implements IResourcePack {

	File repoLocation;
	Set<String> resourceDomains = new HashSet<>();

	public NEURepoResourcePack(File repoLocation, String domain) {
		this.repoLocation = repoLocation;
		resourceDomains.add(domain);
	}

	public boolean loadRepoLocation() {
		if (repoLocation != null) return true;
		NotEnoughUpdates instance = NotEnoughUpdates.INSTANCE;
		if (instance == null) return false;
		NEUManager manager = instance.manager;
		if (manager == null) return false;
		repoLocation = manager.repoLocation;
		return repoLocation != null;
	}

	public File getFileForResource(ResourceLocation loc) {
		if (repoLocation == null) {
			if (!loadRepoLocation())
				return null;
		}
		if (!"neurepo".equals(loc.getResourceDomain())) {
			return null;
		}
		return new File(repoLocation, loc.getResourcePath());
	}

	@Override
	public InputStream getInputStream(ResourceLocation resourceLocation) throws IOException {
		return new BufferedInputStream(new FileInputStream(getFileForResource(resourceLocation)));
	}

	@Override
	public boolean resourceExists(ResourceLocation resourceLocation) {
		File file = getFileForResource(resourceLocation);
		return file != null && file.exists();
	}

	@Override
	public Set<String> getResourceDomains() {
		return resourceDomains;
	}

	@Override
	public <T extends IMetadataSection> T getPackMetadata(IMetadataSerializer iMetadataSerializer, String s)
		throws IOException {
		return iMetadataSerializer.parseMetadataSection(s, new JsonObject());
	}

	@Override
	public BufferedImage getPackImage() throws IOException {
		return null;
	}

	@Override
	public String getPackName() {
		return "NEU Repo Resources";
	}
}