using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.Core.Commands;
using Tango.PPC.Common;
using Tango.PPC.Common.Navigation;
using SimpleValidator.Extensions;
using System.ComponentModel.DataAnnotations;

namespace Tango.PPC.UI.ViewModels
{
    public class LoginViewVM : PPCViewModel
    {
        public RelayCommand LoginCommand { get; set; }

        private String _email;
        [Required(ErrorMessage = "Email is required")]
        [EmailAddress(ErrorMessage = "Please enter a valid email address")]
        public String Email
        {
            get { return _email; }
            set { _email = value; RaisePropertyChangedAuto(); }
        }

        private String _password;
        [Required(ErrorMessage = "Password is required")]
        public String Password
        {
            get { return _password; }
            set { _password = value; RaisePropertyChangedAuto(); }
        }

        public LoginViewVM()
        {
            LoginCommand = new RelayCommand(Login);

            Email = "roy@twine-s.com";
            Password = "1234";
        }

        public override void OnApplicationStarted()
        {

        }

        private void Login()
        {
            if (Validate())
            {
                var user = AuthenticationProvider.Login(Email, Password);

                if (user == null)
                {
                    NotificationProvider.ShowWarning("Email or password are incorrect.");
                }

                ApplicationManager.ModulesInitialized += (_, __) =>
                {
                    NavigationManager.NavigateTo(NavigationView.HomeModule);
                };
            }
        }
    }
}