package org.aksw.sparqlify.admin.web.main;

import java.net.URL;
import java.net.URLClassLoader;
import java.security.ProtectionDomain;

import javax.servlet.ServletException;
import javax.sql.DataSource;

import org.aksw.jena_sparql_api.web.server.ServerUtils;
import org.aksw.sparqlify.validation.LoggerCount;
import org.aksw.sparqlify.web.SparqlifyCliHelper;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.GnuParser;
import org.apache.commons.cli.Options;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.util.component.AbstractLifeCycle.AbstractLifeCycleListener;
import org.eclipse.jetty.util.component.LifeCycle;
import org.eclipse.jetty.webapp.WebAppContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;



/**
 *
 *
 * http://stackoverflow.com/questions/10738816/deploying-a-servlet-
 * programmatically-with-jetty
 * http://stackoverflow.com/questions/3718221/add-resources
 * -to-jetty-programmatically
 *
 * @author raven
 *
 *
 */
public class MainSparqlifyWebManager {

    private static final Logger logger = LoggerFactory.getLogger(MainSparqlifyWebManager.class);


    private static final Options cliOptions = new Options();

    static {
        SparqlifyCliHelper.addDatabaseOptions(cliOptions);

        cliOptions.addOption("P", "port", true, "");
        //SparqlifyCliHelper.addPortOption(cliOptions);
    }

    public static void printClassPath() {
        ClassLoader cl = ClassLoader.getSystemClassLoader();

        URL[] urls = ((URLClassLoader)cl).getURLs();

        for(URL url: urls){
            System.out.println(url.getFile());
        }
    }

    // Source:
    // http://eclipsesource.com/blogs/2009/10/02/executable-wars-with-jetty/
    public static void main(String[] args) throws Exception {

        LoggerCount loggerCount = new LoggerCount(logger);

        Class.forName("org.postgresql.Driver");

        CommandLineParser cliParser = new GnuParser();

        CommandLine commandLine = cliParser.parse(cliOptions, args);

        DataSource dataSource = SparqlifyCliHelper.parseDataSource(commandLine, logger);

        AppConfig.cliDataSource = dataSource;


        //SparqlifyCliHelper.parseDataSource(commandLine, loggerCount);
        Integer port = SparqlifyCliHelper.parseInt(commandLine, "P", false, loggerCount);

        port = (port == null) ? 7531 : port;

        WebAppInitializer initializer = new WebAppInitializer();
        ServerUtils.startServer(MainSparqlifyWebManager.class, port, initializer);

        //startServer(port);
    }

    public static void startServer(int port) {


        Server server = new Server(port);
//		SocketConnector connector = new SocketConnector();
//
//		// Set some timeout options to make debugging easier.
//		connector.setMaxIdleTime(1000 * 60 * 60);
//		connector.setSoLingerTime(-1);
//		connector.setPort(port);
//		server.setConnectors(new Connector[] { connector });

        final WebAppContext webAppContext = new WebAppContext();
        //Context servletContext = webAppContext.getServletContext();

        webAppContext.addLifeCycleListener(new AbstractLifeCycleListener() {
            @Override
            public void lifeCycleStarting(LifeCycle arg0) {
                WebAppInitializer initializer = new WebAppInitializer();
                try {
                    initializer.onStartup(webAppContext.getServletContext());
                } catch (ServletException e) {
                    throw new RuntimeException(e);
                }
            }
        });

        webAppContext.setServer(server);
        webAppContext.setContextPath("/");

        ProtectionDomain protectionDomain = MainSparqlifyWebManager.class.getProtectionDomain();
        URL location = protectionDomain.getCodeSource().getLocation();
        String externalForm = location.toExternalForm();

        logger.debug("External form: " + externalForm);

        // Try to detect whether we are being run from an
        // archive (uber jar / war) or just from compiled classes
        if(externalForm.endsWith("/classes/")) {
            externalForm = "src/main/webapp";
            //externalForm = "target/sparqlify-web-admin-server";
        }


        logger.debug("Loading webAppContext from " + externalForm);
        //context.setDescriptor(externalForm + "/WEB-INF/web.xml");
        webAppContext.setWar(externalForm);

        server.setHandler(webAppContext);
        try {
            server.start();
            System.in.read();
            server.stop();
            server.join();
        } catch (Exception e) {
            e.printStackTrace();
            //System.exit(1);
        }
    }
}