using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
using Hammock;
using MahTweets.Core.Interfaces;
using Newtonsoft.Json;

namespace MahTweets.Extensions.MediaProviders
{
    public class EmbedlyProvider : IImageProvider
    {
         private static readonly List<string> _embedly = new List<string>{
            /* Primarily photo providers */
            @"http://tweetphoto\.com/.+",
            @"http://yfrog\.com/.+",
            @"http://www\.flickr\.com/photos/.+",
            @"http://flic\.kr/.+",
            @"http://twitpic\.com/.+",
            @"http://www\.twitpic\.com/.+",
            @"http://twitpic\.com/photos/.+",
            @"http://www\.twitpic\.com/photos/.+",
            @"http://imgur\.com/.+",
            @"http://.+\.posterous\.com/.+",
            @"http://post\.ly/.+",
            @"http://twitgoo\.com/.+",
            @"http://s\.+\.photobucket\.com/albums/.+",
            @"http://i\.+\.photobucket\.com/albums/.+",
            @"http://moby\.to/.+",
            @"http://www\.mobypicture\.com/user/.+/view/.+",
            @"http://23hq\.com/.+/photo/.+",
            @"http://www\.23hq\.com/.+/photo/.+",
            @"http://drbl\.in/.+",
            @"http://.+dribbble\.com/shots/.+",
            @"http://.+.smugmug\.com/.+",
            @"http://.+.smugmug\.com/.+#.+",
            @"http://picasaweb.google\.com/.+/.+#.+",
            @"http://picasaweb.google\.com/lh/photo/.+",
            @"http://picasaweb.google\.com/.+/.+",
            @"http://dailybooth\.com/.+/.+",
            @"http://brizzly\.com/pic/.+",
            @"http://pics.brizzly\.com/.+\.jpg",
            @"http://img\.ly/.+",
            @"http://www\.tinypic\.com/view.php*",
            @"http://tinypic\.com/view.php*",
            @"http://www\.tinypic\.com/player.php*",
            @"http://tinypic\.com/player.php*",
            @"http://www\.tinypic\.com/r/.+/.+",
            @"http://tinypic\.com/r/.+/.+",
            @"http://.+\.tinypic\.com/.+\.jpg",
            @"http://.+\.tinypic\.com/.+\.png",
            @"http://.+\.deviantart\.com/art/.+",
            @"http://.+\.deviantart\.com/gallery/.+",
            @"http://.+\.deviantart\.com/#/.+",
            @"http://fav\.me/.+",
            @"http://.+\.deviantart\.com",
            @"http://.+\.deviantart\.com/gallery",
            @"http://.+\.deviantart\.com/.+/.+\.jpg",
            @"http://.+\.deviantart\.com/.+/.+\.gif",
            @"http://.+\.deviantart.net/.+/.+\.jpg",
            @"http://.+\.deviantart.net/.+/.+\.gif",
            @"http://plixi\.com/p/.+",
            @"http://plixi\.com/profile/home/.+",
            @"http://plixi\.com/.+",
            @"http://m.plixi\.com/.+",
            @"http://www\.fotopedia\.com/.+/.+",
            @"http://fotopedia\.com/.+/.+",
            @"http://photozou\.jp/photo/show/.+/.+",
            @"http://photozou\.jp/photo/photo_only/.+/.+",
            @"http://instagr\.am/p/.+",
            @"http://instagram\.com/p/.+",
            @"http://skitch\.com/.+/.+/.+",
            @"http://img.skitch\.com/.+",
            @"https://skitch\.com/.+/.+/.+",
            @"https://img.skitch\.com/.+",
            @"http://share.ovi\.com/media/.+/.+",
            @"http://picplz\.com/user/.+/pic/.+/",
            @"http://twitrpix\.com/.+",
            @"http://.+\.twitrpix\.com/.+",
            @"http://pikchur\.com/.+",
            @"http://color\.com/s/.+",

            /* Video providers */
            /*@"http://youtube\.com/watch.+",
            @"http://.+\.youtube\.com/v/.+",
            @"http://youtu\.be/.+",
            @"http://.+\.youtube\.com/user/.+",
            @"http://.+\.youtube\.com/.+#.+/.+",
            @"http://m.youtube\.com/watch.+",
            @"http://m.youtube\.com/index.+",
            @"http://.+\.youtube\.com/profile.+",
            @"http://.+\.youtube\.com/view_play_list.+",
            @"http://.+\.youtube\.com/playlist.+",
            @"http://www\.ustream.tv/recorded/.+",
            @"http://www\.ustream.tv/channel/.+",
            @"http://www\.ustream.tv/.+",
            @"http://.+\.dailymotion\.com/video/.+",
            @"http://.+\.dailymotion\.com/.+/video/.+",
            @"http://collegehumor\.com/video:.+",
            @"http://collegehumor\.com/video/.+",
            @"http://www\.collegehumor\.com/video:.+",
            @"http://www\.collegehumor\.com/video/.+",
            @"http://.+twitvid\.com/.+",
            @"http://www\.break\.com/.+/.+",
            @"http://www\.metacafe\.com/watch/.+",
            @"http://www\.metacafe\.com/w/.+",
            @"http://blip\.tv/file/.+",
            @"http://.+\.blip.tv/file/.+",
            @"http://viddler\.com/explore/.+/videos/.+",
            @"http://www\.funnyordie\.com/videos/.+",
            @"http://www\.funnyordie\.com/m/.+",
            @"http://funnyordie\.com/videos/.+",
            @"http://funnyordie\.com/m/.+",
            @"http://www\.vimeo\.com/groups/.+/videos/.+",
            @"http://www\.vimeo\.com/.+",
            @"http://vimeo\.com/groups/.+/videos/.+",
            @"http://vimeo\.com/.+",
            @"http://vimeo\.com/m/#/.+",
            @"http://www\.theonion\.com/video/.+",
            @"http://theonion\.com/video/.+",*/
        };

        public bool IsMatch(string url)
        {
            return _embedly.Select(e => new Regex(e)).Any(r => r.IsMatch(url));
        }

        public void GetImage(string url, Action<string> callback)
        {
            var r = new RestClient
            {
                Authority = "http://api.embed.ly/1/"
            };

            var request = new RestRequest
            {
                Path = "oembed"
            };
            request.AddParameter("url", Uri.EscapeUriString(url));
            request.AddParameter("format", "json");
            request.AddParameter("maxwidth", "450");
            r.BeginRequest(request, (req, res, obj) =>
            {

                try
                {
                    var result = JsonConvert.DeserializeObject<OEmbedResult>(res.Content);

                    if (result == null)
                        callback(null);

                    callback(result.Width > 450 ? result.ThumbnailUrl : result.Url);
                }
                catch
                {
                    callback(null);
                }
            });
        }
    }
}