/*
 * 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.
 */

package org.apache.axis2.integration;

import junit.framework.TestCase;
import org.apache.axis2.AxisFault;
import org.apache.axis2.Constants;
import org.apache.axis2.context.ConfigurationContext;
import org.apache.axis2.context.ConfigurationContextFactory;
import org.apache.axis2.context.ServiceContext;
import org.apache.axis2.context.ServiceGroupContext;
import org.apache.axis2.deployment.DeploymentEngine;
import org.apache.axis2.description.AxisModule;
import org.apache.axis2.description.AxisService;
import org.apache.axis2.description.TransportInDescription;
import org.apache.axis2.engine.ListenerManager;
import org.apache.axis2.testutils.PortAllocator;
import org.apache.axis2.transport.http.SimpleHTTPServer;

import javax.xml.namespace.QName;
import java.io.File;
import java.io.FilenameFilter;

public class UtilServer {
    private static SimpleHTTPServer receiver;

    public static final int TESTING_PORT = PortAllocator.allocatePort();

    public static final String FAILURE_MESSAGE = "Intentional Failure";


    public static synchronized void deployService(AxisService service)
            throws AxisFault {
        receiver.getConfigurationContext().getAxisConfiguration().addService(
                service);
    }

    public static synchronized void unDeployService(QName service)
            throws AxisFault {
        receiver.getConfigurationContext().getAxisConfiguration()
                .removeService(service.getLocalPart());
    }

    public static synchronized void unDeployClientService() throws AxisFault {
        if (receiver.getConfigurationContext().getAxisConfiguration() != null) {
            receiver.getConfigurationContext().getAxisConfiguration()
                    .removeService("AnonymousService");
        }
    }

    public static synchronized void start() throws Exception {
        start(TestingUtils.prefixBaseDirectory(Constants.TESTING_REPOSITORY));
    }


    public static synchronized void start(String repository) throws Exception {
        if (receiver != null) {
            throw new IllegalStateException("Server already running");
        }

        ConfigurationContext er = getNewConfigurationContext(repository);

        receiver = new SimpleHTTPServer(er, TESTING_PORT);

        try {
            receiver.start();
            ListenerManager listenerManager = er.getListenerManager();
            TransportInDescription trsIn = new TransportInDescription(Constants.TRANSPORT_HTTP);
            trsIn.setReceiver(receiver);
            if (listenerManager == null) {
                listenerManager = new ListenerManager();
                listenerManager.init(er);
            }
            listenerManager.addListener(trsIn, true);
            System.out.print("Server started on port "
                    + TESTING_PORT + ".....");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static ConfigurationContext getNewConfigurationContext(
            String repository) throws Exception {
        File file = new File(repository);
        if (!file.exists()) {
            throw new Exception("repository directory "
                    + file.getAbsolutePath() + " does not exists");
        }
        return ConfigurationContextFactory
                .createConfigurationContextFromFileSystem(file.getAbsolutePath(),
                        file.getAbsolutePath() +
                                "/conf/axis2.xml");
    }

    public static ConfigurationContext getNewConfigurationContext(
            String repository, String axis2xml) throws Exception {
        File file = new File(TestingUtils.prefixBaseDirectory(repository));
        if (!file.exists()) {
            throw new Exception("repository directory "
                    + file.getAbsolutePath() + " does not exists");
        }
        return ConfigurationContextFactory
                .createConfigurationContextFromFileSystem(file.getAbsolutePath(),
                        axis2xml);
    }

    public static synchronized void stop() throws AxisFault {
        if (receiver == null) {
            throw new IllegalStateException();
        }

        receiver.stop();
        while (receiver.isRunning()) {
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e1) {
                //nothing to do here
            }
        }
// tp.doStop();
        System.out.print("Server stopped .....");
        receiver.getConfigurationContext().terminate();
        receiver = null;
    }

    public static ConfigurationContext getConfigurationContext() {
        return receiver.getConfigurationContext();
    }

    public static ServiceContext createAdressedEnabledClientSide(
            AxisService service) throws AxisFault {
        File file = getAddressingMARFile();
        TestCase.assertTrue(file.exists());
        ConfigurationContext configContext = ConfigurationContextFactory
                .createConfigurationContextFromFileSystem(
                        TestingUtils.prefixBaseDirectory("target/test-resources/integrationRepo"), null);
        AxisModule axisModule = DeploymentEngine.buildModule(file,
                configContext.getAxisConfiguration());
        configContext.getAxisConfiguration().addModule(axisModule);

        configContext.getAxisConfiguration().addService(service);


        ServiceGroupContext serviceGroupContext =
                configContext.createServiceGroupContext(service.getAxisServiceGroup());
        return serviceGroupContext.getServiceContext(service);
    }

    static class AddressingFilter implements FilenameFilter {
        public boolean accept(File dir, String name) {
            return name.startsWith("addressing") && name.endsWith(".mar");
        }
    }

    private static File getAddressingMARFile() {
        File dir = new File(TestingUtils.prefixBaseDirectory(Constants.TESTING_REPOSITORY + "/modules"));
        File[] files = dir.listFiles(new AddressingFilter());
        TestCase.assertTrue(files.length == 1);
        File file = files[0];
        TestCase.assertTrue(file.exists());
        return file;
    }

    public static ConfigurationContext createClientConfigurationContext() throws AxisFault {
        File file = getAddressingMARFile();
        TestCase.assertTrue(file.exists());

        ConfigurationContext configContext =
                ConfigurationContextFactory.createConfigurationContextFromFileSystem(
                        TestingUtils.prefixBaseDirectory(Constants.TESTING_PATH + "/integrationRepo"),
                        TestingUtils.prefixBaseDirectory(Constants.TESTING_PATH + "/integrationRepo/conf/axis2.xml"));
        AxisModule axisModule = DeploymentEngine.buildModule(file,
                configContext.getAxisConfiguration());
        configContext.getAxisConfiguration().addModule(axisModule);
        return configContext;
    }

    public static void engageAddressingModule() throws AxisFault {
        File file = getAddressingMARFile();
        AxisModule axisModule = DeploymentEngine.buildModule(file,
                receiver.getConfigurationContext().getAxisConfiguration());
        receiver.getConfigurationContext().getAxisConfiguration().engageModule(axisModule);
    }


    public static ConfigurationContext createClientConfigurationContext(String repo)
            throws AxisFault {
        return ConfigurationContextFactory.createConfigurationContextFromFileSystem(
                repo,
                repo + "/conf/axis2.xml");
    }

    public static ServiceContext createAdressedEnabledClientSide(
            AxisService service, String clientHome) throws AxisFault {
        File file = getAddressingMARFile();
        TestCase.assertTrue(file.exists());

        ConfigurationContext configContext = ConfigurationContextFactory
                .createConfigurationContextFromFileSystem(clientHome, null);
        AxisModule axisModule = DeploymentEngine.buildModule(file,
                configContext.getAxisConfiguration());

        configContext.getAxisConfiguration().addModule(axisModule);
// sysContext.getAxisConfiguration().engageModule(moduleDesc.getName());

        configContext.getAxisConfiguration().addService(service);
        ServiceGroupContext serviceGroupContext =
                configContext.createServiceGroupContext(service.getAxisServiceGroup());
        return serviceGroupContext.getServiceContext(service);
    }

}
