/*
 * Copyright (c) 2019-2022 GeyserMC. http://geysermc.org
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * @author GeyserMC
 * @link https://github.com/GeyserMC/Geyser
 */

package org.geysermc.geyser.skin;

import lombok.Getter;
import org.geysermc.geyser.GeyserImpl;

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;

public class ProvidedSkin {
    @Getter private byte[] skin;

    public ProvidedSkin(String internalUrl) {
        try {
            BufferedImage image;
            try (InputStream stream = GeyserImpl.getInstance().getBootstrap().getResource(internalUrl)) {
                image = ImageIO.read(stream);
            }

            ByteArrayOutputStream outputStream = new ByteArrayOutputStream(image.getWidth() * 4 + image.getHeight() * 4);
            for (int y = 0; y < image.getHeight(); y++) {
                for (int x = 0; x < image.getWidth(); x++) {
                    int rgba = image.getRGB(x, y);
                    outputStream.write((rgba >> 16) & 0xFF); // Red
                    outputStream.write((rgba >> 8) & 0xFF); // Green
                    outputStream.write(rgba & 0xFF); // Blue
                    outputStream.write((rgba >> 24) & 0xFF); // Alpha
                }
            }
            image.flush();
            skin = outputStream.toByteArray();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}