using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using YouTubeViewers.Domain.Models;

namespace YouTubeViewers.WPF.Stores
{
    public class SelectedYouTubeViewerStore
    {
        private readonly YouTubeViewersStore _youTubeViewersStore;

        public SelectedYouTubeViewerStore(YouTubeViewersStore youTubeViewersStore)
        {
            _youTubeViewersStore = youTubeViewersStore;
            _youTubeViewersStore.YouTubeViewerAdded += YouTubeViewersStore_YouTubeViewerAdded;
            _youTubeViewersStore.YouTubeViewerUpdated += YouTubeViewersStore_YouTubeViewerUpdated;
        }

        private void YouTubeViewersStore_YouTubeViewerAdded(YouTubeViewer  youTubeViewer)
        {
            SelectedYouTubeViewer=youTubeViewer;
        }

        private void YouTubeViewersStore_YouTubeViewerUpdated(YouTubeViewer youTubeViewer)
        {
            if (youTubeViewer.Id == SelectedYouTubeViewer?.Id)
            {
                SelectedYouTubeViewer = youTubeViewer;
            }
        }

        private YouTubeViewer _selectedYouTubeViewer;

        public YouTubeViewer SelectedYouTubeViewer
        {
            get { return _selectedYouTubeViewer; }
            set
            {
                _selectedYouTubeViewer = value;
                SelectedYouTubeViewerChanged?.Invoke();
            }
        }

        public event Action SelectedYouTubeViewerChanged;

    }
}