package org.apache.maven.it;

/*
 * 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.
 */

import org.apache.maven.it.util.ResourceExtractor;

import java.io.File;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Properties;

/**
 * This is a test set for <a href="https://issues.apache.org/jira/browse/MNG-187">MNG-187</a>.
 *
 * @author Benjamin Bentmann
 */
public class MavenITmng0187CollectedProjectsTest
    extends AbstractMavenIntegrationTestCase
{

    public MavenITmng0187CollectedProjectsTest()
    {
        super( ALL_MAVEN_VERSIONS );
    }

    /**
     * Verify that MavenProject.getCollectedProjects() provides access to the direct and indirect modules
     * of the current project.
     */
    public void testit()
        throws Exception
    {
        File testDir = ResourceExtractor.simpleExtractResources( getClass(), "/mng-0187" );

        Verifier verifier = newVerifier( testDir.getAbsolutePath() );
        verifier.setAutoclean( false );
        verifier.deleteDirectory( "target" );
        verifier.deleteDirectory( "sub-1/target" );
        verifier.deleteDirectory( "sub-1/sub-2/target" );
        verifier.executeGoal( "validate" );
        verifier.verifyErrorFreeLog();
        verifier.resetStreams();

        Properties props;

        props = verifier.loadProperties( "target/project.properties" );
        assertEquals( "2", props.getProperty( "project.collectedProjects.size" ) );
        assertEquals( Arrays.asList( new String[]{ "sub-1", "sub-2" } ), getProjects( props ) );

        props = verifier.loadProperties( "sub-1/target/project.properties" );
        assertEquals( "1", props.getProperty( "project.collectedProjects.size" ) );
        assertEquals( Arrays.asList( new String[]{ "sub-2" } ), getProjects( props ) );

        props = verifier.loadProperties( "sub-1/sub-2/target/project.properties" );
        assertEquals( "0", props.getProperty( "project.collectedProjects.size" ) );
        assertEquals( Arrays.asList( new String[]{} ), getProjects( props ) );
    }

    private List<String> getProjects( Properties props )
    {
        List<String> projects = new ArrayList<>();

        for ( Object o : props.keySet() )
        {
            String key = o.toString();
            if ( key.startsWith( "project.collectedProjects." ) && !key.endsWith( ".size" ) )
            {
                projects.add( props.getProperty( key ) );
            }
        }

        Collections.sort( projects );

        return projects;
    }

}