using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using SimpleValidator.Extensions;
using Tango.SharedUI;

namespace Tango.MachineStudio.UsersAndRoles.ViewModels
{
    public class UserCreationDialogVM : DialogViewVM
    {
        private static Random rnd = new Random();

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

        private String _password;
        public String Password
        {
            get { return _password; }
            set { _password = value; RaisePropertyChangedAuto(); }
        }

        private String _firstName;
        [Required(ErrorMessage = "First name is required")]
        public String FirstName
        {
            get { return _firstName; }
            set { _firstName = value; RaisePropertyChangedAuto(); InvalidateRelayCommands(); }
        }

        private String _lastName;
        [Required(ErrorMessage = "Last name is required")]
        public String LastName
        {
            get { return _lastName; }
            set { _lastName = value; RaisePropertyChangedAuto(); InvalidateRelayCommands(); }
        }

        protected override void Accept()
        {
            if (Validate())
            {
                base.Accept();
            }
        }

        public override void OnShow()
        {
            base.OnShow();
            Password = GetRandomPassword(4);
        }

        private String GetRandomPassword(int count)
        {
            String pass = String.Empty;

            for (int i = 0; i < count; i++)
            {
                pass += rnd.Next(0, 9).ToString();
            }

            return pass;
        }
    }
}