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.shared.verifier.util.ResourceExtractor;
import org.apache.maven.shared.verifier.Verifier;
import org.apache.maven.shared.verifier.VerificationException;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Properties;

import org.eclipse.jetty.server.Handler;
import org.eclipse.jetty.server.NetworkConnector;
import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.handler.AbstractHandler;
import org.junit.jupiter.api.Test;

/**
 * This is a test set for <a href="https://issues.apache.org/jira/browse/MNG-768">MNG-768</a>.
 *
 * @author John Casey
 *
 */
public class MavenITmng0768OfflineModeTest
    extends AbstractMavenIntegrationTestCase
{

    public MavenITmng0768OfflineModeTest()
    {
        super( ALL_MAVEN_VERSIONS );
    }

    /**
     * Test offline mode.
     *
     * @throws Exception in case of failure
     */
    @Test
    public void testitMNG768()
        throws Exception
    {
        File testDir = ResourceExtractor.simpleExtractResources( getClass(), "/mng-0768" );

        final List<String> requestedUris = Collections.synchronizedList( new ArrayList<String>() );

        Handler repoHandler = new AbstractHandler()
        {
            public void handle( String target, Request baseRequest, HttpServletRequest request,
                                HttpServletResponse response )
                throws IOException
            {
                System.out.println( "Handling " + request.getMethod() + " " + request.getRequestURL() );

                requestedUris.add( request.getRequestURI() );

                PrintWriter writer = response.getWriter();

                response.setStatus( HttpServletResponse.SC_OK );

                if ( request.getRequestURI().endsWith( ".pom" ) )
                {
                    writer.println( "<project>" );
                    writer.println( "  <modelVersion>4.0.0</modelVersion>" );
                    writer.println( "  <groupId>org.apache.maven.its.mng0768</groupId>" );
                    writer.println( "  <artifactId>dep</artifactId>" );
                    writer.println( "  <version>0.1</version>" );
                    writer.println( "</project>" );
                }
                else if ( request.getRequestURI().endsWith( ".jar" ) )
                {
                    writer.println( "empty" );
                }
                else if ( request.getRequestURI().endsWith( ".md5" ) || request.getRequestURI().endsWith( ".sha1" ) )
                {
                    response.setStatus( HttpServletResponse.SC_NOT_FOUND );
                }

                ( (Request) request ).setHandled( true );
            }
        };

        Server server = new Server( 0 );
        server.setHandler( repoHandler );

        try
        {
            server.start();
            if ( server.isFailed() )
            {
                fail( "Couldn't bind the server socket to a free port!" );
            }

            int port = ( (NetworkConnector) server.getConnectors()[0] ).getLocalPort();

            {
                // phase 1: run build in online mode to fill local repo
                Verifier verifier = newVerifier( testDir.getAbsolutePath() );
                verifier.setAutoclean( false );
                verifier.deleteDirectory( "target" );
                verifier.deleteArtifacts( "org.apache.maven.its.mng0768" );
                verifier.setLogFileName( "log1.txt" );
                Properties props = new Properties();
                props.put( "@port@", Integer.toString( port ) );
                verifier.filterFile( "settings-template.xml", "settings.xml", "UTF-8", props );
                verifier.addCliOption( "--settings" );
                verifier.addCliOption( "settings.xml" );
                verifier.executeGoal( "org.apache.maven.its.plugins:maven-it-plugin-dependency-resolution:2.1-SNAPSHOT:compile" );
                verifier.verifyFilePresent( "target/compile.txt" );
                verifier.verifyErrorFreeLog();
            }

            requestedUris.clear();

            {
                // phase 2: run build in offline mode to check it still passes, without network accesses
                Verifier verifier = newVerifier( testDir.getAbsolutePath() );
                verifier.setAutoclean( false );
                verifier.deleteDirectory( "target" );
                verifier.addCliOption( "-o" );
                verifier.addCliOption( "--settings" );
                verifier.addCliOption( "settings.xml" );
                verifier.setLogFileName( "log2.txt" );
                verifier.executeGoal( "org.apache.maven.its.plugins:maven-it-plugin-dependency-resolution:2.1-SNAPSHOT:compile" );
                verifier.verifyFilePresent( "target/compile.txt" );
                verifier.verifyErrorFreeLog();
            }

            assertTrue( requestedUris.toString(), requestedUris.isEmpty() );

            {
                // phase 3: delete test artifact and run build in offline mode to check it fails now
                // NOTE: Adding the settings again to offer Maven the bad choice of using the remote repo
                Verifier verifier = newVerifier( testDir.getAbsolutePath() );
                verifier.setAutoclean( false );
                verifier.deleteDirectory( "target" );
                verifier.deleteArtifacts( "org.apache.maven.its.mng0768" );
                verifier.addCliOption( "-o" );
                verifier.addCliOption( "--settings" );
                verifier.addCliOption( "settings.xml" );
                verifier.setLogFileName( "log3.txt" );
                try
                {
                    verifier.executeGoal( "org.apache.maven.its.plugins:maven-it-plugin-dependency-resolution:2.1-SNAPSHOT:compile" );
                    verifier.verifyErrorFreeLog();
                    fail( "Build did not fail to resolve missing dependency although Maven ought to work offline!" );
                }
                catch( VerificationException e )
                {
                    // expected, should fail
                }
            }

            System.out.println( "Bound server socket to the port " + port );

            assertTrue( requestedUris.toString(), requestedUris.isEmpty() );
        }
        finally
        {
            server.stop();
            server.join();
        }
    }
}