package services;

import org.apache.tuscany.sca.implementation.data.collection.Collection;
import org.apache.tuscany.sca.implementation.data.collection.NotFoundException;
//import org.apache.tuscany.sca.implementation.data.collection.Entry;
import org.apache.tuscany.sca.implementation.data.collection.NotFoundException;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
//import org.apache.tuscany.sca.binding.feed.collection.Collection;
//import org.apache.tuscany.sca.binding.feed.collection.NotFoundException;
import com.sun.syndication.feed.atom.Content;
import com.sun.syndication.feed.atom.Entry;
import com.sun.syndication.feed.atom.Feed;
import com.sun.syndication.feed.atom.Link;

public class ShoppingCartImpl implements Collection {
	// needs to change to instance var once conversation scope works
	private static Map<String, Entry> cart = new HashMap<String, Entry>();
	public Feed getFeed() {
		Feed feed = new Feed();
		feed.setTitle("shopping cart");
		Content subtitle = new Content();
		subtitle.setValue("Total : " + getTotal());
		feed.setSubtitle(subtitle);
		feed.getEntries().addAll(cart.values());
		return feed;
	}
	public Entry get(String id) throws NotFoundException {
		return cart.get(id);
	}
	public Entry post(Entry entry) {
		String id = "cart-" + UUID.randomUUID().toString();
		entry.setId(id);
		Link link = new Link();
		link.setRel("edit");
		link.setHref("" + id);
		entry.getOtherLinks().add(link);
		link = new Link();
		link.setRel("alternate");
		link.setHref("" + id);
		entry.getAlternateLinks().add(link);
		entry.setCreated(new Date());
		cart.put(id, entry);
		return entry;
	}
		public void put(String id, Entry entry) throws NotFoundException {
		entry.setUpdated(new Date());
		cart.put(id, entry);
	}
	public void delete(String id) throws NotFoundException {
		if (id.equals(""))
			cart.clear();
		else
			cart.remove(id);
	} 	private String getTotal() {
		float total = 0;
		String symbol = "";
		if (!cart.isEmpty()) {
			Entry entry = cart.values().iterator().next();
			String item = ((Content)entry.getContents().get(0)).getValue();
			symbol = item.substring(item.indexOf("-")+2, item.indexOf("-")+3);
		}
		for (Entry entry : cart.values()) {
			String item = ((Content)entry.getContents().get(0)).getValue();
			total += Float.valueOf(item.substring(item.indexOf("-")+3));
		}
		return symbol + String.valueOf(total);
	}
	public void delete(Object arg0) throws NotFoundException {
		// TODO Auto-generated method stub

	}
	public Object get(Object arg0) throws NotFoundException {
		// TODO Auto-generated method stub
		return null;
	}
	public org.apache.tuscany.sca.implementation.data.collection.Entry[] getAll() {
		// TODO Auto-generated method stub
		return null;
	}
	public Object post(Object arg0, Object arg1) {
		// TODO Auto-generated method stub
		return null;
	}
	public void put(Object arg0, Object arg1) throws NotFoundException {
		// TODO Auto-generated method stub

	}
	public org.apache.tuscany.sca.implementation.data.collection.Entry[] query(String arg0) {
		// TODO Auto-generated method stub
		return null;
	}
}