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 java.io.File;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;

import org.apache.maven.it.util.ResourceExtractor;
import org.apache.maven.shared.utils.io.FileUtils;

/**
 * This is a test set for <a href="https://issues.apache.org/jira/browse/MNG-2790">MNG-2790</a>.
 * 
 * @author Benjamin Bentmann
 *
 */
public class MavenITmng2790LastUpdatedMetadataTest
    extends AbstractMavenIntegrationTestCase
{

    public MavenITmng2790LastUpdatedMetadataTest()
    {
        super( "(2.0.4,)" );
    }

    /**
     * Verify that the field lastUpdated of existing local repo metadata is updated upon install of new a snapshot.
     */
    public void testitMNG2790()
        throws Exception
    {
        File testDir = ResourceExtractor.simpleExtractResources( getClass(), "/mng-2790" );

        Date now = new Date();

        /*
         * Phase 1: Install initial snapshot into local repo.
         */
        Verifier verifier = newVerifier( testDir.getAbsolutePath() );
        verifier.deleteArtifacts( "org.apache.maven.its.mng2790" );
        verifier.setAutoclean( false );
        verifier.executeGoal( "validate" );
        verifier.verifyErrorFreeLog();
        verifier.resetStreams();

        File metadataArtifactVersionFile =
            new File( verifier.getArtifactMetadataPath( "org.apache.maven.its.mng2790", "project", "1.0-SNAPSHOT" ) );
        File metadataArtifactFile =
            new File( verifier.getArtifactMetadataPath( "org.apache.maven.its.mng2790", "project" ) );

        Date artifactVersionLastUpdated1 = getLastUpdated( metadataArtifactVersionFile );
        Date artifactLastUpdated1 = getLastUpdated( metadataArtifactFile );

        // sanity check: timestamps shouldn't differ by more than 10 min from now (i.e. timezone is UTC)
        assertTrue( artifactVersionLastUpdated1 + " ~ " + now, 
            Math.abs( artifactVersionLastUpdated1.getTime() - now.getTime() ) < 10 * 60 * 1000 );
        assertTrue( artifactLastUpdated1 + " ~ " + now,
            Math.abs( artifactLastUpdated1.getTime() - now.getTime() ) < 10 * 60 * 1000 );

        // enforce some advance of time
        Thread.sleep( 1000 );

        /*
         * Phase 2: Re-install snapshot and check for proper timestamp update in local metadata.
         */
        verifier = newVerifier( testDir.getAbsolutePath() );
        verifier.setAutoclean( false );
        verifier.executeGoal( "validate" );
        verifier.verifyErrorFreeLog();
        verifier.resetStreams();

        Date artifactVersionLastUpdated2 = getLastUpdated( metadataArtifactVersionFile );
        Date artifactLastUpdated2 = getLastUpdated( metadataArtifactFile );

        // check that new timestamps are strictly later than from original install
        assertTrue( artifactVersionLastUpdated1 + " < " + artifactVersionLastUpdated2, 
            artifactVersionLastUpdated2.after( artifactVersionLastUpdated1 ) );
        assertTrue( artifactLastUpdated1 + " < " + artifactLastUpdated2, 
            artifactLastUpdated2.after( artifactLastUpdated1 ) );
    }

    private Date getLastUpdated( File metadataFile )
        throws Exception
    {
        String xml = FileUtils.fileRead( metadataFile, "UTF-8" );
        String timestamp = xml.replaceAll( "(?s)\\A.*<lastUpdated>\\s*([0-9]++)\\s*</lastUpdated>.*\\z", "$1" );
        SimpleDateFormat format = new SimpleDateFormat( "yyyyMMddHHmmss" );
        format.setTimeZone( TimeZone.getTimeZone( "UTC" ) );
        return format.parse( timestamp );
    }

}