using Common.Library;
using GreadyPoang.EntityLayer;
using System.Collections.ObjectModel;


namespace GreadyPoang.ViewModelLayer;

public class ParticipantViewModel : ViewModelBase
{
    #region Constructors
    public ParticipantViewModel() : base()
    {

    }

    public ParticipantViewModel(IRepository<Participant> repo) : base()
    {
        Repository = repo;
    }

    //public ParticipantViewModel(IRepository<Participant> repo) : base()
    //{
    //    Repository = repo;
    //}
    #endregion

    #region Private Variables
    private Participant? _ParticipantObject = new();
    private ObservableCollection<Participant> _ParticipantList = new();
    private readonly IRepository<Participant>? Repository;
    #endregion

    #region public Properties

    public Participant? ParticipantObject
    {
        get { return _ParticipantObject; }
        set
        {
            _ParticipantObject = value;
            RaisePropertyChanged(nameof(ParticipantObject));
        }
    }

    public ObservableCollection<Participant> ParticipantList
    {
        get { return _ParticipantList; }
        set
        {
            _ParticipantList = value;
            RaisePropertyChanged(nameof(ParticipantList));
        }
    }

    #endregion

    #region Get Method
    public ObservableCollection<Participant> Get()
    {
        if (Repository != null)
        {
            var participantsTask = Repository.Get();
            var participants = participantsTask is Task<IEnumerable<Participant>> task
                ? task.GetAwaiter().GetResult()
                : (IEnumerable<Participant>)participantsTask;
            foreach (var participant in participants)
            {
                if (!_ParticipantList.Any(p => p.ParticipantId == participant.ParticipantId))
                {
                    ParticipantList.Add(participant);
                }
            }
        }
        return ParticipantList;
    }

    #endregion

    #region Get(id) Method
    public Participant? Get(int id)
    {
        try
        {
            ParticipantObject = Repository?.Get(id).GetAwaiter().GetResult();
        }
        catch (Exception ex)
        {
            System.Diagnostics.Debug.WriteLine($"Error in Get method: {ex.Message}");
        }

        return ParticipantObject;
    }
    public virtual bool Save()
    {
        if (Repository == null || ParticipantObject == null)
        {
            return false;
        }
        var tmpTask = Repository.Save(ParticipantObject);
        bool tmp = tmpTask.GetAwaiter().GetResult();
        if (tmp)
        {
            ParticipantObject = new Participant();
            this.Get();
        }
        return tmp;
    }
    #endregion
}