/*
 * Minecraft Forge
 * Copyright (c) 2016-2018.
 *
 * This library 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 version 2.1
 * of the License.
 *
 * This library 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 this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

package net.minecraftforge.fml.client;

import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;

import net.minecraftforge.fml.common.FMLLog;
import org.apache.logging.log4j.LogManager;

import javax.imageio.ImageIO;

import net.minecraft.client.resources.FileResourcePack;
import net.minecraftforge.fml.common.FMLContainerHolder;
import net.minecraftforge.fml.common.ModContainer;

public class FMLFileResourcePack extends FileResourcePack implements FMLContainerHolder {

    private ModContainer container;

    public FMLFileResourcePack(ModContainer container)
    {
        super(container.getSource());
        this.container = container;
    }

    @Override
    public String getPackName()
    {
        return "FMLFileResourcePack:"+container.getName();
    }
    @Override
    protected InputStream getInputStreamByName(String resourceName) throws IOException
    {
        try
        {
            return super.getInputStreamByName(resourceName);
        }
        catch (IOException ioe)
        {
            if ("pack.mcmeta".equals(resourceName))
            {
                FMLLog.log.debug("Mod {} is missing a pack.mcmeta file, substituting a dummy one", container.getName());
                return new ByteArrayInputStream(("{\n" +
                        " \"pack\": {\n"+
                        "   \"description\": \"dummy FML pack for "+container.getName()+"\",\n"+
                        "   \"pack_format\": 2\n"+
                        "}\n" +
                        "}").getBytes(StandardCharsets.UTF_8));
            }
            else throw ioe;
        }
    }

    @Override
    public BufferedImage getPackImage() throws IOException
    {
        return ImageIO.read(getInputStreamByName(container.getMetadata().logoFile));
    }

    @Override
    public ModContainer getFMLContainer()
    {
        return container;
    }
}