/**
 * 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.camel.itest.osgi;

import org.apache.camel.CamelContext;
import org.apache.camel.osgi.CamelContextFactory;
import org.apache.camel.test.junit4.CamelTestSupport;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.ops4j.pax.exam.Inject;
import org.ops4j.pax.exam.Option;
import org.ops4j.pax.exam.junit.Configuration;
import org.ops4j.pax.exam.options.UrlReference;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;

import static org.ops4j.pax.exam.CoreOptions.equinox;
import static org.ops4j.pax.exam.CoreOptions.felix;
import static org.ops4j.pax.exam.CoreOptions.mavenBundle;
import static org.ops4j.pax.exam.CoreOptions.options;
import static org.ops4j.pax.exam.container.def.PaxRunnerOptions.profile;
import static org.ops4j.pax.exam.container.def.PaxRunnerOptions.scanFeatures;
import static org.ops4j.pax.exam.container.def.PaxRunnerOptions.workingDirectory;

public class OSGiIntegrationTestSupport extends CamelTestSupport {
    protected static final transient Log LOG = LogFactory.getLog(OSGiIntegrationTestSupport.class);
    @Inject
    protected BundleContext bundleContext;
    
    protected Bundle getInstalledBundle(String symbolicName) {
        for (Bundle b : bundleContext.getBundles()) {
            if (b.getSymbolicName().equals(symbolicName)) {
                return b;
            }
        }
        for (Bundle b : bundleContext.getBundles()) {
            System.err.println("Bundle: " + b.getSymbolicName());
        }
        throw new RuntimeException("Bundle " + symbolicName + " does not exist");
    }
        
    protected CamelContext createCamelContext() throws Exception {
        LOG.info("Get the bundleContext is " + bundleContext);
        LOG.info("Application installed as bundle id: " + bundleContext.getBundle().getBundleId());

        setThreadContextClassLoader();

        CamelContextFactory factory = new CamelContextFactory();
        factory.setBundleContext(bundleContext);
        factory.setRegistry(createRegistry());
        return factory.createContext();
    }
    
    protected void setThreadContextClassLoader() {
        // set the thread context classloader current bundle classloader
        Thread.currentThread().setContextClassLoader(this.getClass().getClassLoader());
    }
    
    public static UrlReference getCamelKarafFeatureUrl() {
        String springVersion = System.getProperty("springVersion");
        System.out.println("*** The spring version is " + springVersion + " ***");
        String type = "xml/features"; 
        if (springVersion != null && springVersion.startsWith("2")) {
            type = "xml/features-spring2";
        }
        return mavenBundle().groupId("org.apache.camel.karaf").
            artifactId("apache-camel").versionAsInProject().type(type);
    }
    
    public static UrlReference getKarafFeatureUrl() {
        String karafVersion = "2.1.3";
        System.out.println("*** The karaf version is " + karafVersion + " ***");

        String type = "xml/features";
        return mavenBundle().groupId("org.apache.karaf").
            artifactId("apache-karaf").version(karafVersion).type(type);
    }

    @Configuration
    public static Option[] configure() throws Exception {
        Option[] options = options(
            // install the spring dm profile            
            profile("spring.dm").version("1.2.0"),    
            // this is how you set the default log level when using pax logging (logProfile)
            org.ops4j.pax.exam.CoreOptions.systemProperty("org.ops4j.pax.logging.DefaultServiceLog.level").value("INFO"),

            // need to install some karaf features
            scanFeatures(getKarafFeatureUrl(), "http"),

            // using the features to install the camel components             
            scanFeatures(getCamelKarafFeatureUrl(),                         
                          "camel-core", "camel-spring", "camel-test"),
            
            workingDirectory("target/paxrunner/"),

            equinox(),
            felix());
        
        return options;
    }

}
