package org.simon.jspwiki.plugin;

import com.ecyrd.jspwiki.plugin.WikiPlugin;
import com.ecyrd.jspwiki.plugin.PluginException;
import com.ecyrd.jspwiki.WikiContext;

import java.text.SimpleDateFormat;
import java.util.*;

/**
 * User: SimonLei
 * Date: 2004-6-4
 * Time: 11:09:56
 * $Id: DailyComicPlugin.java,v 1.3 2004/06/04 05:40:33 simonlei Exp $
 */
public class DailyComicPlugin implements WikiPlugin {
    public String execute(WikiContext wikiContext, Map map) throws PluginException {
        String urlPattern = (String) map.get("urlPattern");
        String timeZoneId = (String) map.get("timeZone");
        String altName = (String) map.get("altName");
        String delim = (String) map.get("delim");

        TimeZone timeZone;
        if ( urlPattern == null) return "Error, no url pattern";
        if ( delim != null) urlPattern = urlPattern.replaceAll( delim, "'");
        if ( timeZoneId == null) timeZone = TimeZone.getDefault();
        else timeZone = TimeZone.getTimeZone( timeZoneId);
        if ( altName == null) altName = "Daily Comic";
        Calendar cal = Calendar.getInstance( timeZone);

        SimpleDateFormat dateFormat = new SimpleDateFormat( urlPattern);

        long time = cal.getTimeInMillis();

        time = time + timeZone.getRawOffset() - TimeZone.getDefault().getRawOffset();
        String text = "[" + altName + "|" + dateFormat.format( new Date( time)) + "]";
        if ( wikiContext != null) return wikiContext.getEngine().textToHTML( wikiContext, text);
        return text;
    }

    public static void main(String[] args) throws PluginException {
        DailyComicPlugin dcp = new DailyComicPlugin();
        HashMap map = new HashMap();
        map.put( "urlPattern", "!http://images.ucomics.com/comics/ga/!yyyy!/ga!yyMMdd!.gif!");
        map.put( "delim", "!");
        String res = dcp.execute( null, map);
        System.out.println( res);
        System.out.println( res.equals( "[Daily Comic|http://images.ucomics.com/comics/ga/2004/ga040604.gif]"));
        map.put( "altName", "Nothing");
        res = dcp.execute( null, map);
        System.out.println( res);
        System.out.println( res.equals( "[Nothing|http://images.ucomics.com/comics/ga/2004/ga040604.gif]"));
        map.put( "timeZone", "America/Los_Angeles");
        res = dcp.execute( null, map);
        System.out.println( res);
        System.out.println( res.equals( "[Nothing|http://images.ucomics.com/comics/ga/2004/ga040604.gif]"));
        map.clear();
        res = dcp.execute( null, map);
        System.out.println( res);
        System.out.println( res.equals( "Error, no url pattern"));
    }
}