GES_PAC

using GES_PAC.Model;

using GES_PAC.View;

using System.Windows.Input;

namespace GES_PAC.ViewModel

{

    public class MainViewModel : BaseViewModel 

    {

        #region Attributs

        private bool _hasLastDay = false;

        private Journee _currentDay;

        private string _currentDayText;

        #endregion

        #region Commandes

        public ICommand GoToCreateDayCommand { get; }

        public ICommand ResumeDayCommand { get; }

        public ICommand ExportDataCommand { get; }

        #endregion

        #region Propriétés

        public bool HasLastDay

        {

            get => _hasLastDay;

            set

            {

                SetProperty(ref _hasLastDay, value);

                OnPropertyChanged();

            }

        }

        public Journee CurrentDay

        {

            get => _currentDay;

            set

            {

                SetProperty(ref _currentDay, value);

                OnPropertyChanged();

            }

        }

        public string CurrentDayText

        {

            get => _currentDayText;

            set

            {

                SetProperty(ref _currentDayText, value);

                OnPropertyChanged();

            }

        }

        #endregion

        #region Constructeur

        public MainViewModel()

        {

            //ONLY FOR TESTS

            var date = DateTime.Now;

            var newDay = new Journee(date, PersonViewModel.Instance.Persons[0], PlaceViewModel.Instance.Places[0], "");

            newDay.AddSet(new Serie(date, date, 25, 25, 25));

            newDay.AddCalibration(new MesureCalibration(date, 50, 40, 500, TypeCalibration.Air, ""), PhaseCalibration.Debut);

            newDay.AddCalibration(new MesureCalibration(date, 0, 0, 1000000, TypeCalibration.Methane, "dazdazd"), PhaseCalibration.Debut);

            newDay.AddCalibration(new MesureCalibration(date, 30, 30, 3000, TypeCalibration.Melange, "deqsfsdf"), PhaseCalibration.Debut);

            newDay.GetCurrentSet().AddSerieAnimal(new SerieAnimal(1, 500, date, ""));

            newDay.GetCurrentSet().AddMeasure(new Mesure(date, 50, 50, 50), 1, false);

            JourneeViewModel.Instance.Journees.Add(newDay);

            //ONLY FOR TESTS

            GoToCreateDayCommand = new Command(async () => await GoToCreateDayPage());

            ResumeDayCommand = new Command(async () => await ResumeDay());

            ExportDataCommand = new Command(async () => await ExportData());

            GetLastDay();

        }

        #endregion

        #region Méthodes

        public void GetLastDay()

        {

            CurrentDay = JourneeViewModel.Instance.GetCurrentDay();

            HasLastDay = !CurrentDay?.IsComplete() ?? false;

            CurrentDayText = HasLastDay ? "Une journée en cours, la reprendre ?" : "Aucune journée trouvée, en créer une ?";

        }

        private async Task GoToCreateDayPage()

        {

            if (IsBusy) return;

            IsBusy = true;

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

            IsBusy = false;

        }

        private async Task ResumeDay()

        {

            if (IsBusy) return;

            IsBusy = true;

            CurrentDay = JourneeViewModel.Instance.GetCurrentDay();

            var targetView = nameof(CreateCalibrationView);

            if (CurrentDay.IsCalibrationComplete(PhaseCalibration.Debut))

                targetView = nameof(SetListView);

            await Shell.Current.GoToAsync(targetView);

            IsBusy = false;

        }        

        private async Task ExportData()

        {

            if (IsBusy) return;

            IsBusy = true;

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

            IsBusy = false;

        }

        #endregion

    }

}