/**
 * 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.pdfbox.jbig2.segments;

import static org.junit.Assume.assumeTrue;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;

import javax.imageio.stream.ImageInputStream;

import org.apache.pdfbox.jbig2.Bitmap;
import org.apache.pdfbox.jbig2.TestImage;
import org.apache.pdfbox.jbig2.err.InvalidHeaderValueException;
import org.apache.pdfbox.jbig2.io.DefaultInputStreamFactory;
import org.apache.pdfbox.jbig2.io.SubInputStream;
import org.junit.Assert;
import org.junit.Ignore;
import org.junit.Test;

public class PatternDictionaryTest
{
    @Test
    public void parseHeaderTest() throws IOException, InvalidHeaderValueException
    {

        final File inputFile = new File("target/images/sampledata.jb2");
        // skip test if input stream isn't available
        assumeTrue(inputFile.exists());

        final InputStream inputStream = new FileInputStream(inputFile);

        DefaultInputStreamFactory disf = new DefaultInputStreamFactory();
        ImageInputStream iis = disf.getInputStream(inputStream);
        // Sixth Segment (number 5)
        SubInputStream sis = new SubInputStream(iis, 245, 45);
        PatternDictionary pd = new PatternDictionary();
        pd.init(null, sis);
        Assert.assertEquals(true, pd.isMMREncoded());
        Assert.assertEquals(0, pd.getHdTemplate());
        Assert.assertEquals(4, pd.getHdpWidth());
        Assert.assertEquals(4, pd.getHdpHeight());
        Assert.assertEquals(15, pd.getGrayMax());
    }

    // TESTS WITH TESTOUTPUT
    // Ignore in build process

    @Ignore
    @Test
    public void decodeTestWithOutput() throws Throwable
    {

        final File inputFile = new File("target/images/sampledata.jb2");
        // skip test if input stream isn't available
        assumeTrue(inputFile.exists());

        final InputStream inputStream = new FileInputStream(inputFile);

        DefaultInputStreamFactory disf = new DefaultInputStreamFactory();
        ImageInputStream iis = disf.getInputStream(inputStream);
        // Sixth Segment (number 5)
        SubInputStream sis = new SubInputStream(iis, 245, 45);

        PatternDictionary pd = new PatternDictionary();
        pd.init(null, sis);

        ArrayList<Bitmap> b = pd.getDictionary();

        int i = 5;
        // for (int i = 0; i < 8; i++) {
        new TestImage(b.get(i).getByteArray(), (int) b.get(i).getWidth(),
                (int) b.get(i).getHeight(), b.get(i).getRowStride());
        // }
    }

    @Ignore
    @Test
    public void decodeTestWithOutput2() throws Throwable
    {

        final File inputFile = new File("target/images/sampledata.jb2");
        // skip test if input stream isn't available
        assumeTrue(inputFile.exists());

        final InputStream inputStream = new FileInputStream(inputFile);

        DefaultInputStreamFactory disf = new DefaultInputStreamFactory();
        ImageInputStream iis = disf.getInputStream(inputStream);
        // Twelfth Segment (number 12)
        SubInputStream sis = new SubInputStream(iis, 569, 28);

        PatternDictionary pd = new PatternDictionary();
        pd.init(null, sis);

        ArrayList<Bitmap> b = pd.getDictionary();

        int i = 2;
        // for (int i = 0; i < 8; i++) {
        new TestImage(b.get(i).getByteArray(), (int) b.get(i).getWidth(),
                (int) b.get(i).getHeight(), b.get(i).getRowStride());
        // }
    }
}
