using System;

using System.Collections.Generic;

using System.Linq;

using MonoTouch.Foundation;

using MonoTouch.UIKit;

using System.Net;

using System.Text;

namespace iSOFlair

{

    public class Application

    {

        static void Main (string[] args)

        {

            UIApplication.Main (args);

        }

    }

    // The name AppDelegate is referenced in the MainWindow.xib file.

    public partial class AppDelegate : UIApplicationDelegate

    {

        // This method is invoked when the application has loaded its UI and its ready to run

        public override bool FinishedLaunching (UIApplication app, NSDictionary options)

        {

            // If you have defined a view, add it here:

            // window.AddSubview (navigationController.View);

            var prefs = NSUserDefaults.StandardUserDefaults();

            // "25673";

            Console.Write(prefs.StringForKey("soUserId"));

            buttonUpdate.TouchDown += delegate {

                Update();    

            };

            if (System.IO.File.Exists("cache.txt"))

            { 

                Load();    

            } else

            {

                Update();

            }

            window.MakeKeyAndVisible ();

            return true;

        }

        private string profileUrl = "";

        protected void Load()

        {Console.WriteLine("Loading from cache.txt");

            string cache = System.IO.File.ReadAllText("cache.txt");

            string[] cacheItems = cache.Split('?');

            labelUsername.Text = cacheItems[0];

            labelPoints.Text = cacheItems[1];

            profileUrl = cacheItems[2];

            labelLastUpdated.Text=cacheItems[3];

        }

        protected void Update(){

            Console.WriteLine("Loading from web");

            WebClient wc = new WebClient();

            Uri uri = new Uri("http://stackoverflow.com/users/flair/25673.html");

            byte[] bytes = wc.DownloadData(uri);

            string result = Encoding.UTF8.GetString(bytes);

            labelUsername.Text = result;

            int startpos = result.IndexOf("<a");

            startpos = result.IndexOf("href=",startpos) + 6;

            int endpos = result.IndexOf("\"",startpos);

            profileUrl = result.Substring(startpos, endpos-startpos);

            startpos = result.IndexOf("img src",endpos) + 9;

            endpos = result.IndexOf("\"",startpos);

            string gravatarUrl = result.Substring(startpos, endpos-startpos);

            Console.WriteLine("url:"+gravatarUrl);

            uri = new Uri(gravatarUrl);

            wc.DownloadFile(uri, "gravatar.png");

            Console.WriteLine("exists:"+System.IO.File.Exists("gravatar.png"));

            UIImage img = UIImage.FromFile("gravatar.png");

            imageviewGravatar.AnimationImages = new UIImage[] {img};

            imageviewGravatar.AnimationDuration = 10;

            imageviewGravatar.StartAnimating();

            startpos = result.IndexOf("username",endpos);

            startpos = result.IndexOf("_blank",endpos) + 8;

            endpos = result.IndexOf("<",startpos);

            string username = result.Substring(startpos, endpos-startpos);

            labelUsername.Text = username;

            startpos = result.IndexOf("reputation score",endpos) + 18;

            endpos = result.IndexOf("<",startpos);

            string points = result.Substring(startpos, endpos-startpos);

            labelPoints.Text = points;

            string dateUpdated = DateTime.Now.ToString("dd-MMM-yy hh:mm:ss");

            labelLastUpdated.Text = dateUpdated;

            string cache = String.Format("{0}?{1}?{2}?{3}"

                                         , username

                                         , points

                                         , profileUrl

                                         , dateUpdated);

            System.IO.File.WriteAllText("cache.txt", cache);

        }

        // This method is required in iPhoneOS 3.0

        public override void OnActivated (UIApplication application)

        {

        }

    }

}