using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Xml.Linq;
using System.Xml.XPath;

namespace SharpDIC.Entities
{
    /// <summary>
    /// Represents a user on the Dream.In.Code website.
    /// </summary>
    public class User
    {
        /********************************************************************************
         * Some of these attributes aren't even used. The API doesn't provide them yet, *
         * so I'll have to scrape the information from the HTML itself. Still thinking  *
         * about how to tackle this.                                                    *
         *                                                                              *
         * Author: Sergio Tapia                                                         *
         * Website: http://www.alphaot.com                                              *
         * ******************************************************************************/

        #region "Attributes"
        public string ID { get; set; }
        public string Name { get; set; }
        public string Rating { get; set; }
        public string Photo { get; set; }
        public string LastActive { get; set; }
        public string Location { get; set; }
        public string Birthday { get; set; }
        public string Age { get; set; }
        public string Gender { get; set; }
        public string Email { get; set; }


        public string Title { get; set; }
        public string Reputation { get; set; }
        public string DreamKudos { get; set; }
        public string Group { get; set; }
        public string Posts { get; set; }
        public string PostsPerDay { get; set; }
        public string MostActiveIn { get; set; }
        public string JoinDate { get; set; }
        public string ProfileViews { get; set; }

        public string FavoriteOS { get; set; }
        public string FavoriteBrowser { get; set; }
        public string FavoriteProcessor { get; set; }
        public string FavoriteConsole { get; set; }

        public List<Visitor> Visitors { get; set; }
        public List<Friend> Friends { get; set; }
        public List<Comment> Comments { get; set; }
        public string ProgrammingLanguages { get; set; }

        public string AIM { get; set; }
        public string MSN { get; set; }
        public string Website { get; set; }
        public string ICQ { get; set; }
        public string Yahoo { get; set; }
        public string Jabber { get; set; }
        public string Skype { get; set; }
        public string LinkedIn { get; set; }
        public string Facebook { get; set; }
        public string Twitter { get; set; }
        public string XFire { get; set; }
        #endregion

        /// <summary>
        /// Load a user by providing an ID.
        /// </summary>
        /// <param name="ID">A user's individual ID number.</param>
        public User(string ID)
        {
            XDocument xmlResponse = GetUserXMLResponse(ID);

            LoadGeneralInformation(xmlResponse.Element("ipb").Element("profile"));
            LoadContactInformation(xmlResponse.Element("ipb").Element("profile").Element("contactinformation"));
            LoadLatestVisitors(xmlResponse.Element("ipb").Element("profile").Element("latestvisitors"));
            LoadFriends(xmlResponse.Element("ipb").Element("profile").Element("friends"));
            LoadComments(xmlResponse.Element("ipb").Element("profile").Element("comments"));
        }

        #region "Loading Methods - give them XML and they'll do the job."
        private void LoadGeneralInformation(XElement profileXML)
        {
            this.ID = (string)profileXML.Element("id");
            this.Name = (string)profileXML.Element("name");
            this.Rating = (string)profileXML.Element("rating");
            this.Photo = (string)profileXML.Element("photo");
            this.Reputation = (string)profileXML.Element("reputation");
            this.Group = (string)profileXML.Element("group").Element("span");
            this.Posts = (string)profileXML.Element("posts");
            this.PostsPerDay = (string)profileXML.Element("postsperday");
            this.JoinDate = (string)profileXML.Element("joined");
            this.ProfileViews = (string)profileXML.Element("views");
            this.LastActive = (string)profileXML.Element("lastactive");
            this.Location = (string)profileXML.Element("location");
            this.Title = (string)profileXML.Element("title");
            this.Age = (string)profileXML.Element("age");
            this.Birthday = (string)profileXML.Element("birthday");
            this.Gender = (string)profileXML.Element("gender").Element("gender").Element("value");
        }

        private void LoadContactInformation(XElement contactXML)
        {
            this.AIM = (string)contactXML.XPathSelectElement("contact[title='AIM']/value");
            this.MSN = (string)contactXML.XPathSelectElement("contact[title='MSN']/value");
            this.Website = (string)contactXML.XPathSelectElement("contact[title='Website URL']/value");
            this.ICQ = (string)contactXML.XPathSelectElement("contact[title='ICQ']/value");
            this.Yahoo = (string)contactXML.XPathSelectElement("contact[title='Yahoo']/value");
            this.Jabber = (string)contactXML.XPathSelectElement("contact[title='Jabber']/value");
            this.Skype = (string)contactXML.XPathSelectElement("contact[title='Skype']/value");
            this.LinkedIn = (string)contactXML.XPathSelectElement("contact[title='LinkedIn']/value");
            this.Facebook = (string)contactXML.XPathSelectElement("contact[title='Facebook']/value");
            this.Twitter = (string)contactXML.XPathSelectElement("contact[title='Twitter']/value");
            this.XFire = (string)contactXML.XPathSelectElement("contact[title='Xfire']/value");
        }

        private void LoadLatestVisitors(XElement visitorsXML)
        {
            this.Visitors = (from visitor in visitorsXML.Descendants("user")
                             select new Visitor()
                             {
                                 ID = visitor.Element("id").Value,
                                 Name = visitor.Element("name").Value,
                                 Url = visitor.Element("url").Value,
                                 Photo = visitor.Element("photo").Value,
                                 Visited = visitor.Element("visited").Value,
                             }).ToList();
        }

        private void LoadFriends(XElement friendsXML)
        {
            this.Friends = (from friend in friendsXML.Descendants("user")
                            select new Friend()
                            {
                                ID = friend.Element("id").Value,
                                Name = friend.Element("name").Value,
                                Url = friend.Element("url").Value,
                                Photo = friend.Element("photo").Value
                            }).ToList();
        }

        private void LoadComments(XElement commentsXML)
        {
            this.Comments = (from comment in commentsXML.Descendants("comment")
                             select new Comment()
                             {
                                 ID = comment.Element("id").Value,
                                 Text = comment.Element("text").Value,
                                 Date = comment.Element("date").Value,
                                 UserWhoPosted = new Friend()
                                 {
                                     ID = comment.Element("user").Element("id").Value,
                                     Name = comment.Element("user").Element("name").Value,
                                     Url = comment.Element("user").Element("url").Value,
                                     Photo = comment.Element("user").Element("photo").Value
                                 }
                             }).ToList();
        }
        #endregion

        private XDocument GetUserXMLResponse(string ID)
        {
            WebClient webClient = new WebClient();
            string htmlSource = webClient.DownloadString(new Uri(String.Format("http://www.dreamincode.net/forums/xml.php?showuser={0}", ID)));
            return XDocument.Parse(htmlSource);
        }
    }
}