/*
 * 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.formats.jpeg.xmp;

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.commons.imaging.common.bytesource.ByteSource;
import org.apache.commons.imaging.common.bytesource.ByteSourceFile;
import org.apache.commons.imaging.formats.jpeg.JpegImageParser;
import org.apache.commons.imaging.formats.jpeg.xmp.JpegXmpRewriter;
import org.apache.commons.imaging.util.Debug;

public class JpegXmpRewriteTest extends JpegXmpBaseTest
{

    public void testRemoveInsertUpdate() throws Exception
    {
        List images = getImagesWithXmpData();
        for (int i = 0; i < images.size(); i++)
        {
            if (i % 10 == 0)
                Debug.purgeMemory();

            File imageFile = (File) images.get(i);
            Debug.debug("imageFile", imageFile);

            // boolean ignoreImageData = isPhilHarveyTestImage(imageFile);
            // if (ignoreImageData)
            // continue;

            ByteSource byteSource = new ByteSourceFile(imageFile);
            // Debug.debug("Source Segments:");
            // new JpegUtils().dumpJFIF(byteSource);

            Map params = new HashMap();
            String xmpXml = new JpegImageParser().getXmpXml(byteSource, params);
            assertNotNull(xmpXml);

            // Debug.debug("xmpXml", xmpXml.length());
            // Debug.debug();

            File noXmpFile = createTempFile(imageFile.getName() + ".", ".jpg");
            {
                // test remove

                OutputStream os = null;
                try
                {
                    os = new FileOutputStream(noXmpFile);
                    os = new BufferedOutputStream(os);
                    new JpegXmpRewriter().removeXmpXml(byteSource, os);
                } finally
                {
                    if (os != null) {
                        os.close();
                    }
                    os = null;
                }

                // Debug.debug("Source Segments:");
                // new JpegUtils().dumpJFIF(new ByteSourceFile(noXmpFile));

                String outXmp = new JpegImageParser().getXmpXml(
                        new ByteSourceFile(noXmpFile), params);
                assertNull(outXmp);
            }

            {
                // test update

                String newXmpXml = "test";
                File updated = createTempFile(imageFile.getName() + ".", ".jpg");
                OutputStream os = null;
                try
                {
                    os = new FileOutputStream(updated);
                    os = new BufferedOutputStream(os);
                    new JpegXmpRewriter().updateXmpXml(byteSource, os,
                            newXmpXml);
                } finally
                {
                    if (os != null) {
                        os.close();
                    }
                    os = null;
                }

                // Debug.debug("Source Segments:");
                // new JpegUtils().dumpJFIF(new ByteSourceFile(updated));

                String outXmp = new JpegImageParser().getXmpXml(
                        new ByteSourceFile(updated), params);
                assertNotNull(outXmp);
                assertEquals(outXmp, newXmpXml);
            }

            {
                // test insert

                String newXmpXml = "test";
                File updated = createTempFile(imageFile.getName() + ".", ".jpg");
                OutputStream os = null;
                try
                {
                    os = new FileOutputStream(updated);
                    os = new BufferedOutputStream(os);
                    new JpegXmpRewriter().updateXmpXml(new ByteSourceFile(noXmpFile), os,
                            newXmpXml);
                } finally
                {
                    if (os != null) {
                        os.close();
                    }
                    os = null;
                }

                // Debug.debug("Source Segments:");
                // new JpegUtils().dumpJFIF(new ByteSourceFile(updated));

                String outXmp = new JpegImageParser().getXmpXml(
                        new ByteSourceFile(updated), params);
                assertNotNull(outXmp);
                assertEquals(outXmp, newXmpXml);
            }
        }
    }

}