using System;
using Hammock;
using MahApps.RESTBase;
using MahApps.Twitter;
using MahApps.Twitter.Models;
using MahTweets.Mobile.Core;

namespace MahTweets.Mobile.TwitterPlugin.ViewModels
{
    public class TwitterSetupViewModel : MahViewModelBase
    {
        private const string ConsumerKey = "NRvCz7KI8MRodk2E28Dmg";
        private const string ConsumerSecret = "4Pm8OlyWRUmuWmG25t7yhbtoUW4A9V0CA4XO8tvg";
        private readonly TwitterClient _twitterClient;
        private Credentials _tokens;

        private Uri _address;

        public TwitterSetupViewModel()
        {
            _twitterClient = new TwitterClient(ConsumerKey, ConsumerSecret, "http://www.mahtweets.com/mobile_oauth.html");
        }

        public Uri Address
        {
            get { return _address; }
            set
            {
                _address = value;
                RaisePropertyChanged(() => Address);
            }
        }

        public void VerifyCredentials(RestRequest request, RestResponse response, object obj)
        {
            if (obj is User && !String.IsNullOrEmpty(((User)obj).Name))
            {
                var u = (User)obj;
                Twitter.OnSuccess(new Credential
                                      {
                                          AccountName = u.ScreenName,
                                          Username = _tokens.OAuthToken,
                                          Password = _tokens.OAuthTokenSecret,
                                          Protocol = "twitter",
                                          AccountId = u.Id.ToString()
                                      });
            } else
                Twitter.OnFailure("Twitter setup cancelled or failed");
        }

        public void Login(string text, string password)
        {
            _twitterClient.BeginXAuthAuthenticate(text, password, (request, response, credentials) =>
                                                                      {
                                                                          if (credentials == null)
                                                                              Twitter.OnFailure(
                                                                                  "Twitter setup cancelled or failed");
                                                                          else
                                                                          {
                                                                              _tokens = credentials;
                                                                              _twitterClient.SetOAuthToken(credentials);
                                                                              _twitterClient.Account.BeginVerifyCredentials(VerifyCredentials);
                                                                          }
                                                                      });
        }
    }
}