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/*
 * Copyright (c) 2022 SAP SE or an SAP affiliate company and Eclipse Dirigible contributors
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v2.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v20.html
 *
 * SPDX-FileCopyrightText: 2022 SAP SE or an SAP affiliate company and Eclipse Dirigible contributors
 * SPDX-License-Identifier: EPL-2.0
 */
package org.eclipse.dirigible.api.v3.io;

import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.InputStream;

import org.apache.commons.io.output.ByteArrayOutputStream;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Facade for working with images.
 */
public class ImageFacade {
	
	/** The Constant logger. */
	private static final Logger logger = LoggerFactory.getLogger(FilesFacade.class);

	/**
	 * Resize an image to the given boundaries.
	 *
	 * @param original original image
	 * @param type type of the image
	 * @param width width of the new image
	 * @param height height of the new image
	 * @return the created input stream
	 * @throws IOException in case of failure in underlying layer
	 */
	public static final InputStream resize(InputStream original, String type, int width, int height) throws IOException {
        BufferedImage bufferedImage = javax.imageio.ImageIO.read(original);
        Image scaledImage = bufferedImage.getScaledInstance(width, height, java.awt.Image.SCALE_SMOOTH);
       
        int bufferedImageType = bufferedImage.getType();
        BufferedImage buffer = new BufferedImage(width, height, bufferedImageType);
        buffer.getGraphics().drawImage(scaledImage, 0, 0, null);
       
        ByteArrayOutputStream temp = new ByteArrayOutputStream();
        javax.imageio.ImageIO.write(buffer, type, temp);
                       
        temp.flush();
		return temp.toInputStream();
	}

}