/*
    * Licensed to the Apache Software Foundation (ASF) under one or more
    * contributor license agreements.  See the NOTICE file distributed with
    * this work for additional information regarding copyright ownership.
    * The ASF licenses this file to You 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.apache.commons.imaging.roundtrip;
  
  import static org.junit.jupiter.api.Assertions.assertArrayEquals;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  
  import java.awt.image.BufferedImage;
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.util.stream.Stream;
  
  import org.apache.commons.imaging.AbstractImageParser;
  import org.apache.commons.imaging.ImagingException;
  import org.apache.commons.imaging.ImagingParameters;
  import org.apache.commons.imaging.common.RgbBufferedImageFactory;
  import org.apache.commons.imaging.internal.ImageParserFactory;
  import org.junit.jupiter.params.provider.Arguments;
  
  public class RoundtripBase {
  
      public static Stream<Arguments> createRoundtripArguments(final BufferedImage[] images) {
          return Stream.of(images).flatMap(i -> Stream.of(FormatInfo.READ_WRITE_FORMATS).map(f -> Arguments.of(i, f)));
      }
  
      protected void roundtrip(final FormatInfo formatInfo, final BufferedImage testImage, final String tempPrefix, final boolean imageExact)
              throws IOException, ImagingException, ImagingException {
  
          final AbstractImageParser abstractImageParser = ImageParserFactory.getImageParser(formatInfo.format);
  
          final ImagingParameters params = ImageParserFactory.getImageParser(formatInfo.format).getDefaultParameters();
          byte[] temp1;
          try (ByteArrayOutputStream bos = new ByteArrayOutputStream()) {
              abstractImageParser.writeImage(testImage, bos, params);
              temp1 = bos.toByteArray();
          }
  
          final ImagingParameters readParams = ImageParserFactory.getImageParser(formatInfo.format).getDefaultParameters();
          readParams.setBufferedImageFactory(new RgbBufferedImageFactory());
          final BufferedImage image2 = abstractImageParser.getBufferedImage(temp1, readParams);
          assertNotNull(image2);
  
          if (imageExact) {
              // note tolerance when comparing grayscale images
              // BufferedImages of
              ImageAsserts.assertImageEquals(testImage, image2);
          }
  
          if (formatInfo.identicalSecondWrite) {
              byte[] temp2;
              try (ByteArrayOutputStream bos = new ByteArrayOutputStream()) {
                  abstractImageParser.writeImage(image2, bos, params);
                  temp2 = bos.toByteArray();
              }
  
              assertArrayEquals(temp1, temp2);
          }
      }
  }