/*
 * The MIT License
 *
 * Copyright (c) 2013 The Broad Institute
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package picard.metrics;

import htsjdk.samtools.metrics.MetricsFile;
import htsjdk.samtools.util.IOUtil;
import org.testng.Assert;
import org.testng.annotations.AfterTest;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;
import picard.analysis.CollectRrbsMetrics;
import picard.analysis.RrbsSummaryMetrics;
import picard.cmdline.CommandLineProgramTest;

import java.io.File;
import java.io.FileReader;
import java.util.ArrayList;
import java.util.List;

/**
 * @author jgentry@broadinstitute.org
 */

public class CollectRrbsMetricsTest extends CommandLineProgramTest {
    public static final String CHR_M_SAM = "testdata/picard/metrics/chrMReads.sam";

    private File rootTestDir;

    @BeforeTest
    private void setUp() throws Exception {
        rootTestDir = File.createTempFile("crmt.", ".tmp");
        Assert.assertTrue(rootTestDir.delete());
        Assert.assertTrue(rootTestDir.mkdir());
    }

    @AfterTest
    private void tearDown() {
        IOUtil.deleteDirectoryTree(rootTestDir);
    }

    @Test
    public void chrMReads() throws Exception {
        final MetricsFile<RrbsSummaryMetrics, ?> metricsFile = getSummaryFile(CHR_M_SAM, CHR_M_REFERENCE.getAbsolutePath(), rootTestDir + "/READ_TEST", new ArrayList<String>());
        final RrbsSummaryMetrics metrics = metricsFile.getMetrics().get(0);
        Assert.assertEquals(metrics.READS_ALIGNED.intValue(), 5);
        Assert.assertEquals(metrics.NON_CPG_BASES.intValue(), 15);
        Assert.assertEquals(metrics.NON_CPG_CONVERTED_BASES.intValue(), 11);
        Assert.assertEquals(metrics.PCT_NON_CPG_BASES_CONVERTED, 0.733333);
        Assert.assertEquals(metrics.CPG_BASES_SEEN.intValue(), 5);
        Assert.assertEquals(metrics.CPG_BASES_CONVERTED.intValue(), 1);
        Assert.assertEquals(metrics.PCT_CPG_BASES_CONVERTED, 0.2);
        Assert.assertEquals(metrics.MEAN_CPG_COVERAGE, 1.666667);
        Assert.assertEquals(metrics.MEDIAN_CPG_COVERAGE.intValue(), 2);
        Assert.assertEquals(metrics.READS_WITH_NO_CPG.intValue(), 1);
        Assert.assertEquals(metrics.READS_IGNORED_SHORT.intValue(), 1);
        Assert.assertEquals(metrics.READS_IGNORED_MISMATCHES.intValue(), 1);
    }

    private MetricsFile<RrbsSummaryMetrics, ?> getSummaryFile(final String input, final String reference, final String prefix,
                                                              final List<String> sequences) throws Exception {
        final List<String> argList = new ArrayList<>();
        argList.add("INPUT=" + input);
        argList.add("METRICS_FILE_PREFIX=" + prefix);
        argList.add("REFERENCE=" + reference);
        for (final String sequence : sequences) {
            argList.add("SEQUENCE_NAMES=" + sequence);
        }

        Assert.assertEquals(runPicardCommandLine(argList), 0);

        final MetricsFile<RrbsSummaryMetrics, ?> retVal = new MetricsFile<RrbsSummaryMetrics, Integer>();
        retVal.read(new FileReader(prefix + ".rrbs_summary_metrics"));
        return retVal;
    }

    @Override
    public String getCommandLineProgramName() {
        return CollectRrbsMetrics.class.getSimpleName();
    }
}
