/*
 * Copyright (c) 2018-2019. Developed by Hedgecode.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.hedgecode.chess.img;

import java.awt.image.BufferedImage;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;

import org.hedgecode.chess.img.bitmap.BitmapImageShaper;
import org.hedgecode.chess.img.vector.VectorImageShaper;

import static org.hedgecode.chess.img.ImageFormat.Type;

/**
 * Shaper for images, indicated by type format.
 *
 * @author Dmitry Samoshin aka gotty
 */
public final class ImageFormatShaper {

    private static ImageFormatShaper _instance = new ImageFormatShaper();

    private Map<Type, ImageShaper> imageShapers = new HashMap<>();

    private ImageFormatShaper() {
        imageShapers.put(
                Type.BITMAP,
                BitmapImageShaper.create()
        );
        imageShapers.put(
                Type.VECTOR,
                VectorImageShaper.create()
        );
    }

    public BufferedImage shape(String imageFormat, InputStream imageStream, int size)
            throws ImageException
    {
        ImageFormat format = ImageFormat.findFormat(imageFormat);
        if (format != null) {
            ImageShaper imageShaper = imageShapers.get(
                    format.getType()
            );
            return imageShaper.shape(imageStream, size);
        } else {
            throw new ImageException("image.unknown.image.format", imageFormat);
        }
    }

    public static ImageFormatShaper getInstance() {
        return _instance;
    }

}