import java.util.Date;

import java.util.Map;
import java.util.HashMap;
import java.util.ArrayList;
import java.util.List;
import java.util.Iterator;
import java.util.Set;
import java.util.Collection;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import org.sakaiproject.tool.api.Session;
import org.sakaiproject.tool.cover.SessionManager;
import org.sakaiproject.user.cover.UserDirectoryService;
import org.sakaiproject.user.api.User;
import org.sakaiproject.user.api.UserNotDefinedException;

import org.sakaiproject.authz.api.AuthzGroup;
import org.sakaiproject.authz.cover.AuthzGroupService;
import org.sakaiproject.authz.api.Role;
import org.sakaiproject.authz.api.Member;

import org.sakaiproject.site.api.Group;
import org.sakaiproject.site.api.Site;
import org.sakaiproject.site.cover.SiteService;

import org.sakaiproject.calendar.api.Calendar;
import org.sakaiproject.calendar.api.CalendarEvent;
import org.sakaiproject.calendar.api.CalendarEventEdit;
import org.sakaiproject.calendar.cover.CalendarService;
import org.sakaiproject.time.api.TimeRange;
import org.sakaiproject.time.cover.TimeService;


import org.apache.axis.AxisFault;
/**
 * class to support Sakai data retrieval;
 */
public class SakaiCalendar {

	private static final Log LOG = LogFactory.getLog(SakaiCalendar.class);
	
	private Session establishSession(String id) throws AxisFault 
	{
		Session s = SessionManager.getSession(id);
		
		if (s == null)
		{
			throw new AxisFault("Session "+id+" is not active");
		}
		s.setActive();
		SessionManager.setCurrentSession(s);
		return s;
	}
	
    public boolean addEvent(String sessionid, String site, Date start, int duration, String title, String body) throws AxisFault 
    	{
    	
    	Session session = establishSession(sessionid);
    	try{
    		Calendar c = CalendarService.getCalendar(site);
    		CalendarEventEdit event = c.addEvent();
    		event.setDisplayName(title);
    		event.setDescription(body);
    		event.setRange(TimeService.newTimeRange(start.getTime(),duration));
    		c.commitEvent(event);
    		return true;
    	}
    	catch (Exception e){
    		LOG.warn("Error addEvent:"+title+" session:"+sessionid,e);
    		e.printStackTrace();
    		throw new AxisFault("Error addEvent:"+title+" session:"+sessionid+" error:"+e.getMessage());	
    	}    	
    }
 }