package com.ximple.eofms;

import javax.swing.JFrame;
import javax.swing.SwingUtilities;
import java.util.Date;

import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.Option;
import org.apache.commons.cli.OptionBuilder;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;
import org.apache.commons.cli.PosixParser;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.awl.Wizard;
import org.quartz.JobDetail;
import org.quartz.Scheduler;
import org.quartz.SchedulerException;
import org.quartz.Trigger;
import org.quartz.TriggerUtils;
import org.quartz.impl.StdSchedulerFactory;

import com.ximple.eofms.jobs.OracleConvertDgn2ShpJob;

/**
 * Hello world!
 */
public class XQuartzJobCarrier {
    static Log logger = LogFactory.getLog(XQuartzJobCarrier.class);
    static Options options = new Options();

    private static final String VERSION = "0.9.0";

    public static void main(String[] args) {
        XQuartzJobCarrier instance = new XQuartzJobCarrier();
        instance.initializeOption();
        instance.execute(args);
    }

    private void initializeOption() {
        Option option;
        option = OptionBuilder.create("help");
        option.setDescription("print this message");
        options.addOption(option);

        option = OptionBuilder.create("version");
        option.setDescription("print the version information and exit");
        options.addOption(option);

        option = OptionBuilder.create("wizard");
        option.setDescription("start wizard mode");
        options.addOption(option);

        option = OptionBuilder.create("verbose");
        option.setDescription("be extra verbose");
        options.addOption(option);

        option = OptionBuilder.create("debug");
        option.setDescription("print debugging information");
        options.addOption(option);

        option = OptionBuilder.create("jobfile");
        option.setDescription("use given jobfile");
        option.setArgName("file");
        options.addOption(option);

    }

    private void execute(String[] args) {
        // CommandLineParser parser = new GnuParser();
        CommandLineParser parser = new PosixParser();
        CommandLine commandLine = null;
        try {
            // parse the command commandLine arguments
            commandLine = parser.parse(options, args);
        }
        catch (ParseException exp) {
            // oops, something went wrong
            System.err.println("Parsing failed.  Reason: " + exp.getMessage());
        }

        if ((commandLine != null) && (commandLine.getOptions().length > 0)) {
            if (commandLine.hasOption("help")) {
                printHelpMessage();
            } else if (commandLine.hasOption("version")) {
                printVersionMessage();
            } else if (commandLine.hasOption("wizard")) {
                startWizardMode();
            }
            return;
        }
        startScheduler();
    }

    private void printHelpMessage() {
        HelpFormatter formatter = new HelpFormatter();
        formatter.printHelp("XQuartzJobCarrier", options);
    }

    private void printVersionMessage() {
        System.out.println("XQuartzJobCarrier - " + VERSION);
    }

    public void startWizardMode() {
        Runnable runnable = new Runnable() {
            public void run() {
                Wizard wizard = new XQuartzJobWizard((JFrame) null);

                wizard.pack();
                wizard.setVisibleOnCenterOfScreen();
            }
        };
        try {
            SwingUtilities.invokeLater(runnable);
        }
        catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    public void startScheduler() {
        Scheduler scheduler = null;
        boolean shutdown = false;

        try {
            // Get a Scheduler instance from the Factory
            scheduler = StdSchedulerFactory.getDefaultScheduler();

            // Start the scheduler
            scheduler.start();
            logger.info("Scheduler started at " + new Date());

        } catch (SchedulerException ex) {
            // deal with any exceptions
            logger.error(ex);
            shutdown = true;
        } catch (Throwable throwable) {
            logger.error(throwable.getMessage(), throwable);
            shutdown = true;
        }
        if (shutdown) {
            try {
                scheduler.shutdown();
            } catch (SchedulerException e) {
                logger.error(e.getMessage(), e);
            }
        }
    }

    /*
     * return an instance of the Scheduler from the factory
     */
    public Scheduler createScheduler() throws SchedulerException {
        return StdSchedulerFactory.getDefaultScheduler();
    }

    // Create and Schedule a ScanDirectoryJob with the Scheduler
    private void scheduleJob(Scheduler scheduler) throws SchedulerException {

        // Create a JobDetail for the Job
        JobDetail jobDetail = new JobDetail("ScanDirectory", Scheduler.DEFAULT_GROUP,
                                            OracleConvertDgn2ShpJob.class);

        // Configure the directory to scan
        jobDetail.getJobDataMap().put("SCAN_DIR", "c:\\quartz-book\\input");

        // Create a trigger that fires every 10 seconds, forever
        Trigger trigger = TriggerUtils.makeSecondlyTrigger(10);
        trigger.setName("scanTrigger");
        // Start the trigger firing from now
        trigger.setStartTime(new Date());

        // Associate the trigger with the job in the scheduler
        scheduler.scheduleJob(jobDetail, trigger);
    }

}