using System;
using System.IO.IsolatedStorage;
using System.Net;
using System.Windows.Controls;

namespace Juick.Classes
{
    public class AccountManager
    {
        const string FileName = "account.xml";
        public NetworkCredential Credentials
        {
            get
            {
                string userName;
                string password;
                IsolatedStorageSettings.ApplicationSettings.TryGetValue<string>("user", out userName);
                IsolatedStorageSettings.ApplicationSettings.TryGetValue<string>("password", out password);
                return new NetworkCredential
                           {
                               UserName = userName,
                               Password = password,
                           };
            }
            set
            {
                var creds = value;
                if (creds != null)
                {
                    IsolatedStorageSettings.ApplicationSettings["user"] = value.UserName;
                    IsolatedStorageSettings.ApplicationSettings["password"] = value.Password;
                }
                else
                {
                    IsolatedStorageSettings.ApplicationSettings["user"] = null;
                    IsolatedStorageSettings.ApplicationSettings["password"] = null;
                }
            }
        }

        public void SignIn(Page page, string login, string pass, Uri nextUri)
        {
            Credentials = new NetworkCredential(login, pass);
            page.NavigationService.Navigate(nextUri);
            page.Dispatcher.BeginInvoke(() => page.NavigationService.RemoveBackEntry());
        }

        public void SignOut(Page page)
        {
            Credentials = null;
            page.NavigationService.Navigate(new Uri("/LoginView.xaml", UriKind.Relative));
            page.Dispatcher.BeginInvoke(() => page.NavigationService.RemoveBackEntry());
        }
    }
}