package org.apache.maven.wagon.tck.http;

/*
 * 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.io.IOException;
import java.util.HashSet;
import java.util.Set;

import org.apache.maven.wagon.ConnectionException;
import org.apache.maven.wagon.Wagon;
import org.apache.maven.wagon.authentication.AuthenticationException;
import org.apache.maven.wagon.authentication.AuthenticationInfo;
import org.apache.maven.wagon.proxy.ProxyInfo;
import org.apache.maven.wagon.repository.Repository;
import org.apache.maven.wagon.tck.http.fixture.ServerFixture;
import org.codehaus.plexus.DefaultPlexusContainer;
import org.codehaus.plexus.PlexusContainer;
import org.codehaus.plexus.component.configurator.ComponentConfigurationException;
import org.codehaus.plexus.component.repository.exception.ComponentLifecycleException;
import org.codehaus.plexus.util.FileUtils;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import static org.apache.maven.wagon.tck.http.util.TestUtil.getResource;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * 
 */
public abstract class HttpWagonTests
{

    private ServerFixture serverFixture;

    private static PlexusContainer container;

    private Wagon wagon;

    private static WagonTestCaseConfigurator configurator;

    private String baseUrl;

    private static final Set<File> TMP_FILES = new HashSet<File>();

    private Repository repo;

    private final Set<Object> notificationTargets = new HashSet<Object>();

    // CHECKSTYLE_OFF: ConstantName
    protected static final Logger logger = LoggerFactory.getLogger( HttpWagonTests.class );
    // CHECKSTYLE_ON: ConstantName

    @Before
    public void beforeEach()
        throws Exception
    {
        serverFixture = new ServerFixture( isSsl() );
        serverFixture.start();
        wagon = (Wagon) container.lookup( Wagon.ROLE, configurator.getWagonHint() );
    }

    @BeforeClass
    public static void beforeAll()
        throws Exception
    {
        File keystore = getResource( ServerFixture.SERVER_SSL_KEYSTORE_RESOURCE_PATH );

        System.setProperty( "javax.net.ssl.keyStore", keystore.getAbsolutePath() );
        System.setProperty( "javax.net.ssl.keyStorePassword", ServerFixture.SERVER_SSL_KEYSTORE_PASSWORD );
        System.setProperty( "javax.net.ssl.trustStore", keystore.getAbsolutePath() );
        System.setProperty( "javax.net.ssl.trustStorePassword", ServerFixture.SERVER_SSL_KEYSTORE_PASSWORD );

        container = new DefaultPlexusContainer();
        //container.initialize();
        //container.start();

        configurator = (WagonTestCaseConfigurator) container.lookup( WagonTestCaseConfigurator.class.getName() );
    }

    @After
    public void afterEach()
    {
        try
        {
            wagon.disconnect();
        }
        catch ( ConnectionException e )
        {
            e.printStackTrace();
        }

        for ( Object obj : notificationTargets )
        {
            synchronized ( obj )
            {
                obj.notify();
            }
        }

        if ( serverFixture != null )
        {
            try
            {
                serverFixture.stop();
            }
            catch ( Exception e )
            {
                e.printStackTrace();
            }
        }

        try
        {
            container.release( wagon );
        }
        catch ( ComponentLifecycleException e )
        {
            e.printStackTrace();
        }
    }

    @AfterClass
    public static void afterAll()
    {
        for ( File f : TMP_FILES )
        {
            if ( f.exists() )
            {
                try
                {
                    FileUtils.forceDelete( f );
                }
                catch ( IOException e )
                {
                    e.printStackTrace();
                }
            }
        }

        if ( container != null )
        {
            try
            {
                container.release( configurator );
            }
            catch ( ComponentLifecycleException e )
            {
                e.printStackTrace();
            }

            container.dispose();
        }
    }

    protected void addNotificationTarget( final Object target )
    {
        notificationTargets.add( target );
    }

    protected File newTempFile()
        throws IOException
    {
        File f = File.createTempFile( "wagon-target.", ".file" );
        f.deleteOnExit();

        return f;
    }

    protected boolean isSsl()
    {
        return false;
    }

    protected ProxyInfo newProxyInfo()
    {
        ProxyInfo info = new ProxyInfo();
        info.setType( isSsl() ? "https" : "http" );
        info.setHost( ServerFixture.SERVER_HOST );
        info.setPort( getPort() );

        return info;
    }

    protected boolean isSupported()
    {
        StackTraceElement[] elements = new Throwable().getStackTrace();
        String testCaseId = null;
        String lastMethodName = null;
        for ( StackTraceElement e : elements )
        {
            if ( !e.getClassName().startsWith( getClass().getPackage().getName() ) )
            {
                testCaseId = lastMethodName;
                break;
            }
            else
            {
                lastMethodName = e.getMethodName();
            }
        }

        if ( testCaseId == null || !configurator.isSupported( testCaseId ) )
        {
            logger.error( "Cannot run test: " + testCaseId
                          + ". Wagon under test does not support this test case." );
            return false;
        }

        return true;
    }

    protected boolean initTest( final AuthenticationInfo auth, final ProxyInfo proxy )
        throws ComponentConfigurationException, ConnectionException, AuthenticationException
    {
        return initTest( getBaseUrl(), auth, proxy );
    }

    protected boolean initTest( final String baseUrl, final AuthenticationInfo auth, final ProxyInfo proxy )
        throws ComponentConfigurationException, ConnectionException, AuthenticationException
    {
        StackTraceElement[] elements = new Throwable().getStackTrace();
        String testCaseId = null;
        String lastMethodName = null;
        for ( StackTraceElement e : elements )
        {
            if ( !e.getClassName().startsWith( getClass().getPackage().getName() ) )
            {
                testCaseId = lastMethodName;
                break;
            }
            else
            {
                lastMethodName = e.getMethodName();
            }
        }

        if ( testCaseId == null || !configurator.configureWagonForTest( wagon, testCaseId ) )
        {
            logger.error( "Cannot run test: " + testCaseId
                          + ". Wagon under test does not support this test case." );

            return false;
        }

        try
        {
            serverFixture.start();
        }
        catch ( Exception e )
        {
            throw new IllegalStateException( "Failed to start: " + e.getMessage(), e );
        }

        repo = new Repository( "test", baseUrl );

        wagon.connect( repo, auth, proxy );

        return true;
    }

    protected int getPort()
    {
        return serverFixture.getHttpPort();
    }

    protected int getPortPropertyValue()
    {
        return Integer.parseInt( System.getProperty( "test.port", "-1" ) );
    }

    protected String getBaseUrl()
    {
        if ( baseUrl == null )
        {
            StringBuilder sb = new StringBuilder();
            sb.append( isSsl() ? "https" : "http" );
            sb.append( "://" + ServerFixture.SERVER_HOST + ":" );
            sb.append( getPort() );

            baseUrl = sb.toString();
        }

        return baseUrl;
    }

    protected ServerFixture getServerFixture()
    {
        return serverFixture;
    }

    protected static PlexusContainer getContainer()
    {
        return container;
    }

    protected Wagon getWagon()
    {
        return wagon;
    }

    protected static WagonTestCaseConfigurator getConfigurator()
    {
        return configurator;
    }

    protected static Set<File> getTmpfiles()
    {
        return TMP_FILES;
    }

    protected Repository getRepo()
    {
        return repo;
    }

}