package org.apache.savan.atom;

import org.apache.axiom.om.OMElement;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.savan.SavanException;
import org.apache.savan.filters.Filter;
import org.apache.savan.subscribers.Subscriber;
import org.apache.savan.subscription.ExpirationBean;
import org.w3.x2005.x08.addressing.EndpointReferenceType;

import java.io.File;
import java.net.URI;
import java.util.Date;

public class AtomSubscriber implements Subscriber {
    private static final Log log = LogFactory.getLog(AtomSubscriber.class);
    private Date subscriptionEndingTime = null;
    //private Feed feed;
    private Filter filter = null;
    private File atomFile;
    private String feedUrl;
    private AtomDataSource atomDataSource;
    private URI id;

    public void init(AtomDataSource dataSource, URI id, String title, String author)
            throws SavanException {
        this.atomDataSource = dataSource;
        atomDataSource.addFeed(id.toString(), title, new Date(), author);
    }


    public URI getId() {
        return id;
    }

    public void renewSubscription(ExpirationBean bean) {
        throw new UnsupportedOperationException();
    }

    public void sendEventData(OMElement eventData) throws SavanException {
//		try {
        Date date = new Date();

        boolean expired = false;
        if (subscriptionEndingTime != null && date.after(subscriptionEndingTime))
            expired = true;

        if (expired) {
            String message = "Cant notify the listener since the subscription has been expired";
            log.debug(message);
        }

        atomDataSource.addEntry(id.toString(), eventData);
//			
//			if(feed == null){
//				feed = new Feed(title,id.toString(),author);
//			}
//			feed.addEntry(eventData);
//			
//			if(!atomFile.getParentFile().exists()){
//				atomFile.getParentFile().mkdir();
//			}
//			FileOutputStream out = new FileOutputStream(atomFile);
//			feed.write(out);
//			out.close();
//			System.out.println("Atom file at "+ atomFile + " is updated");
//		} catch (FileNotFoundException e) {
//			throw new SavanException(e);
//		} catch (XMLStreamException e) {
//			throw new SavanException(e);
//		} catch (IOException e) {
//			throw new SavanException(e);
//		}
    }

    public void setId(URI id) {
        this.id = id;
    }


    public void setSubscriptionEndingTime(Date subscriptionEndingTime) {
        this.subscriptionEndingTime = subscriptionEndingTime;
    }

    public void setEndToEPr(EndpointReferenceType endToEPR) {
        throw new UnsupportedOperationException();
    }

//	public String getAuthor() {
//		return author;
//	}
//
//	public void setAuthor(String author) {
//		this.author = author;
//	}
//
//
//	public String getTitle() {
//		return title;
//	}

//	public void setTitle(String title) {
//		this.title = title;
//	}


    public String getFeedUrl() {
        return feedUrl;
    }

    public Date getSubscriptionEndingTime() {
        return subscriptionEndingTime;
    }

    public Filter getFilter() {
        return filter;
    }

    public void setFilter(Filter filter) {
        this.filter = filter;
    }

    public void setAtomFile(File atomFile) {
        this.atomFile = atomFile;
    }

    public void setFeedUrl(String feedUrl) {
        this.feedUrl = feedUrl;
    }
//	public Feed getFeed() {
//		return feed;

    //	}
    public OMElement getFeedAsXml() throws SavanException {
        return atomDataSource.getFeedAsXml(id.toString());
    }
//	public void setAtomDataSource(AtomDataSource atomDataSource) {
//		this.atomDataSource = atomDataSource;
//	}


}