GES_PAC

using GES_PAC.Model;

using System.Windows.Input;

namespace GES_PAC.ViewModel

{

    public class CreatePlaceViewModel : BaseViewModel

    {

        private string _nom;

        public string Nom

        {

            get => _nom;

            set

            {

                _nom = value;

                OnPropertyChanged();

                ValidateForm();

            }

        }

        private string _client;

        public string Client

        {

            get => _client;

            set

            {

                _client = value;

                OnPropertyChanged();

                ValidateForm();

            }

        }

        private bool _isFormValid;

        public bool IsFormValid

        {

            get => _isFormValid;

            set

            {

                _isFormValid = value;

                OnPropertyChanged();

            }

        }

        public bool NomError { get; private set; } = true;

        public bool ClientError { get; private set; } = true;

        public ICommand ReturnCommand { get; }

        public ICommand CreatePlaceCommand { get; }

        public CreatePlaceViewModel()

        {

            ReturnCommand = new Command(async () => await Return());

            CreatePlaceCommand = new Command(async () => await CreatePlace());

        }

        private void ValidateForm()

        {

            NomError = string.IsNullOrWhiteSpace(Nom) || Nom.Length < 3;

            ClientError = string.IsNullOrWhiteSpace(Client) || Client.Length < 3;

            OnPropertyChanged(nameof(NomError));

            OnPropertyChanged(nameof(ClientError));

            IsFormValid = !NomError && !ClientError;

            (CreatePlaceCommand as Command)?.ChangeCanExecute();

        }

        private async Task Return()

        {

            await Shell.Current.GoToAsync("..");

        }

        private async Task CreatePlace()

        {

            var newPlace = new Lieu(Nom, Client);

            PlaceViewModel.Instance.Places.Add(newPlace);

            await Shell.Current.GoToAsync("..");

        }

    }

}