/*
 * 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.ode.jbi;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;
import java.sql.Connection;
import java.sql.Statement;
import java.util.Properties;
import java.util.regex.Pattern;

import javax.jbi.messaging.ExchangeStatus;
import javax.jbi.messaging.InOut;
import javax.sql.DataSource;
import javax.transaction.TransactionManager;
import javax.xml.namespace.QName;
import javax.xml.transform.stream.StreamSource;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.servicemix.client.DefaultServiceMixClient;
import org.apache.servicemix.jbi.container.ActivationSpec;
import org.apache.servicemix.jbi.container.JBIContainer;
import org.apache.servicemix.jbi.framework.ComponentContextImpl;
import org.apache.servicemix.jbi.framework.ComponentNameSpace;
import org.apache.servicemix.jbi.jaxp.SourceTransformer;
import org.apache.servicemix.jbi.util.FileUtil;
import org.apache.servicemix.tck.SpringTestSupport;
import org.apache.xbean.spring.context.ClassPathXmlApplicationContext;
import org.junit.Ignore;
import org.springframework.context.support.AbstractXmlApplicationContext;

@Ignore
public class JbiTestBase extends SpringTestSupport {
    private static Logger log = LoggerFactory.getLogger(JbiTestBase.class);

    protected OdeComponent odeComponent;
    protected JBIContainer jbiContainer;

    protected Properties testProperties;
    protected DefaultServiceMixClient smxClient;

    @Override
    protected AbstractXmlApplicationContext createBeanFactory() {
        return new ClassPathXmlApplicationContext(new String[] {
            "/smx-base.xml",
            "/" + getTestName() + "/smx.xml"
        });
    }

    private void initOdeDb() throws Exception {
        TransactionManager tm = (TransactionManager) getBean("transactionManager");
        tm.begin();
        Connection conn = ((DataSource) getBean("odeDS")).getConnection();
        Statement s = conn.createStatement();
        s.execute("delete from bpel_process");
        s.close();
        tm.commit();
    }

    @Override
    protected void setUp() throws Exception {
        super.setUp();

        initOdeDb();

        jbiContainer = ((JBIContainer) getBean("jbi"));
        odeComponent = new OdeComponent();

        ComponentContextImpl cc = new ComponentContextImpl(jbiContainer, new ComponentNameSpace(jbiContainer.getName(), "ODE"));
        ActivationSpec activationSpec = new ActivationSpec();
        activationSpec.setComponent(odeComponent);
        activationSpec.setComponentName("ODE");
        jbiContainer.activateComponent(new File("target/test/smx/ode").getAbsoluteFile(), odeComponent, "", cc, activationSpec,  true, false, false, null);

        testProperties = new Properties();
        testProperties.load(getClass().getResourceAsStream("/" + getTestName() + "/test.properties"));

        smxClient = new DefaultServiceMixClient(jbiContainer);
    }

    protected String getTestName() {
        return getClass().getSimpleName();
    }

    protected void enableProcess(String resource, boolean enable) throws Exception {
        resource = "target/test/resources/" + resource;
        String process = resource.substring(resource.lastIndexOf('/') + 1);
        String dir = new File(resource).getAbsolutePath();
        log.debug("enableProcess " + resource + " " + enable + " path: " + dir);
        if (enable) {
            odeComponent.getServiceUnitManager().deploy(process, dir);
            odeComponent.getServiceUnitManager().init(process, dir);
            odeComponent.getServiceUnitManager().start(process);
        } else {
            odeComponent.getServiceUnitManager().stop(process);
            odeComponent.getServiceUnitManager().undeploy(process, dir);
        }
    }

    @Override
    protected void tearDown() throws Exception {
        super.tearDown();
    }


    protected void go() throws Exception {
        boolean manualDeploy = Boolean.parseBoolean("" + testProperties.getProperty("manualDeploy"));
        if (!manualDeploy)
            enableProcess(getTestName(), true);

        try {
            int i = 0;
            boolean loop;
            do {
                String prefix = i == 0 ? "" : "" + i;
                loop = i == 0;

                {
                    String deploy = testProperties.getProperty(prefix + "deploy");
                    if (deploy != null) {
                        loop = true;
                        enableProcess(getTestName() + "/" + deploy, true);
                    }
                }
                {
                    String undeploy = testProperties.getProperty(prefix + "undeploy");
                    if (undeploy != null) {
                        loop = true;
                        enableProcess(getTestName() + "/" + undeploy, false);
                    }
                }

                String request = testProperties.getProperty(prefix + "request");
                if (request != null && request.startsWith("@")) {
                    request = inputStreamToString(getClass().getResourceAsStream("/" + getTestName() + "/" + request.substring(1)));
                }
                String expectedResponse = testProperties.getProperty(prefix + "response");
                {
                    String delay = testProperties.getProperty(prefix + "delay");
                    if (delay != null) {
                        loop = true;
                        long d = Long.parseLong(delay);
                        log.debug("Sleeping " + d + " ms");
                        Thread.sleep(d);
                    }
                }
                {
                    String httpUrl = testProperties.getProperty(prefix + "http.url");
                    if (httpUrl != null && request != null) {
                        loop = true;
                        log.debug(getTestName() + " sending http request to " + httpUrl + " request: " + request);
                        URLConnection connection = new URL(httpUrl).openConnection();
                        connection.setDoOutput(true);
                        connection.setDoInput(true);
                        //Send request
                        OutputStream os = connection.getOutputStream();
                        PrintWriter wt = new PrintWriter(os);
                        wt.print(request);
                        wt.flush();
                        wt.close();
                        // Read the response.
                        String result = inputStreamToString(connection.getInputStream());

                        log.debug(getTestName() + " have result: " + result);
                        matchResponse(expectedResponse, result, true);
                    }
                }
                {
                    if (testProperties.getProperty(prefix + "nmr.service") != null && request != null) {
                        loop = true;
                        InOut io = smxClient.createInOutExchange();
                        io.setService(QName.valueOf(testProperties.getProperty(prefix + "nmr.service")));
                        io.setOperation(QName.valueOf(testProperties.getProperty(prefix + "nmr.operation")));
                        io.getInMessage().setContent(new StreamSource(new ByteArrayInputStream(request.getBytes())));
                        smxClient.sendSync(io,20000);
                        if (io.getStatus() == ExchangeStatus.ACTIVE) {
                            assertNotNull(io.getOutMessage());
                            String result = new SourceTransformer().contentToString(io.getOutMessage());
                            matchResponse(expectedResponse, result, true);
                            smxClient.done(io);
                        } else {
                            matchResponse(expectedResponse, "", false);
                        }
                }
                }

                i++;
            } while (loop);

        } finally {
            if (!manualDeploy)
                enableProcess(getTestName(), false);
        }
    }

    protected void matchResponse(String expectedResponse, String result, boolean succeeded) {
        if (succeeded) {
            assertTrue("Response doesn't match expected regex.\nExpected: " + expectedResponse + "\nReceived: " + result, Pattern.compile(expectedResponse, Pattern.DOTALL).matcher(result).matches());
        } else {
            assertTrue("Expected success, but got fault", expectedResponse.equals("FAULT"));
        }
    }

    private String inputStreamToString(InputStream is) throws IOException {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        FileUtil.copyInputStream(is, baos);
        return baos.toString();
    }
}