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package colorchooser;

import javafx.data.feed.rss.Channel;
import javafx.data.feed.rss.Item;
import javafx.data.feed.rss.RssTask;

//@author Rakesh Menon

/**
 * <item>
 *     <title><![CDATA[090423_1]]></title>
 *     <link><![CDATA[http://www.colourlovers.com/palette/794462/090423_1]]></link>
 *     <description><![CDATA[<img src="http://www.colourlovers.com/paletteRSS/6B4040/B8967B/D6B989/D1B2C2/66354E/090423_1.png" style="width: 168px; height: 67px; border: 1px solid #d0d0d0; padding: 2px;" alt="6B4040/B8967B/D6B989/D1B2C2/66354E" />]]></description>
 *     <comments><![CDATA[http://www.colourlovers.com/palette/794462/090423_1#comments]]></comments>
 *     <guid isPermaLink="false">f8f606201dec3d762db8061ae75376c1</guid>
 * </item>
 */
public class FeedUtil {
    public var url:String;
    public var updatePalette: function(ttl:String[], clr:String[]) = null;
    var titles:String[];
    var colors:String[];
    var paletteFeedTask:RssTask;
    public function start():Void {
        if(paletteFeedTask.started) { return; }
        paletteFeedTask = RssTask {
            location: url
            interval: 60s
            onChannel: function (channel:Channel):Void {
                delete titles;
                delete colors;
            }

            onItem: function(item:Item):Void {
                insert getTitle("{item.title}") into titles;
                insert getColor("{item.description}") into colors;
            }

            onDone: function():Void {
                if(updatePalette != null) {
                    updatePalette(titles, colors);
                }
            }
        }
        paletteFeedTask.start();
    }
}

function getTitle(cdata:String):String {
    return cdata;
}

function getColor(cdata:String):String {
    var startIndex = cdata.indexOf("alt=\"") + 5;
    var endIndex = cdata.indexOf("\"", startIndex);
    cdata.substring(startIndex, endIndex);
}