GES_PAC

using GES_PAC.Model;

using GES_PAC.View;

using System.Collections.ObjectModel;

using System.Windows.Input;

namespace GES_PAC.ViewModel

{

    [QueryProperty(nameof(ChamberId), "chamberId")]

    public class CreateBehaviourViewModel : BaseViewModel

    {

        #region Attributs

        private int _chamberId;

        private TypeComportement _selectedType;

        private string _description;

        private bool _isFormValid;

        private bool _isAnimalOut;

        #endregion

        #region Commandes

        public ICommand CreateBehaviourCommand { get; }

        #endregion

        #region Propriétés

        public int ChamberId

        {

            get => _chamberId;

            set

            {

                _chamberId = value;

                OnPropertyChanged();

                OnPropertyChanged(nameof(Titre));

            }

        }

        public ObservableCollection<TypeComportement> TypeComp { get; }

        public TypeComportement SelectedType

        {

            get => _selectedType;

            set

            {

                _selectedType = value;

                OnPropertyChanged();

                ValidateForm();

            }

        }

        public string Description

        {

            get => _description;

            set

            {

                _description = value;

                OnPropertyChanged();

                ValidateForm();

            }

        }

        public bool IsAnimalOut

        {

            get => _isAnimalOut;

            set => SetProperty(ref _isAnimalOut, value);

        }

        public bool IsFormValid

        {

            get => _isFormValid;

            set

            {

                _isFormValid = value;

                OnPropertyChanged();

            }

        }

        public string Titre => $"Comportement chambre {ChamberId}";

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

        #endregion

        #region Constructeurs

        public CreateBehaviourViewModel()

        {

            CreateBehaviourCommand = new Command(async () => await CreateBehaviour());

            TypeComp = new ObservableCollection<TypeComportement>(TypeComportement.All);

        }

        #endregion

        #region Méthodes

        private async Task CreateBehaviour()

        {

            if (IsBusy) return;

            IsBusy = true;

            var date = DateTime.Now;

            var set = JourneeViewModel.Instance.GetCurrentSet();

            var newBehaviour = new Comportement(date, SelectedType, Description);

            set.AddBehaviour(newBehaviour, ChamberId, IsAnimalOut);

            await Shell.Current.GoToAsync(nameof(ChambersView));

            IsBusy = false;

        }

        private void ValidateForm()

        {

            TypeError = SelectedType == null;

            OnPropertyChanged(nameof(TypeError));

            IsFormValid = !TypeError;

            (CreateBehaviourCommand as Command)?.ChangeCanExecute();

        }

        #endregion

    }

}