using System.Linq;
using System.Xml.Linq;

namespace Website.DataAccess
{
    public class RssFeedService : ISyndicatedFeedService
    {
        public FeedItemCollection GetFeedItems(string feedUrl, int count)
        {
            var feed = XDocument.Load(feedUrl);
            var feedItems = (from item in feed.Descendants("channel").Descendants("item")
                   select new FeedItem(
                       item.Element("title").Value,
                       item.Element("link").Value,
                       item.Element("description").Value,
                       item.Element("pubDate").Value))
                        .OrderByDescending(p => p.PostDate)
                        .Take(count);
            return new FeedItemCollection(feedItems);
        }
    }
}