using DTS.Common.Base;
using DTS.Common.Events;
using DTS.Common.Interface;
using Prism.Ioc;
using Prism.Events;
using System;
using System.Threading;
using System.Threading.Tasks;

namespace DTS.Viewer.PSDReport
{
    /// <summary>
    /// Interaction logic for PSDReportMainViewGrid.xaml
    /// </summary>
    public partial class PSDReportMainViewGrid : IPSDReportMainViewGrid
    {
        public PSDReportMainViewGrid()
        {
            InitializeComponent();
            Loaded += PSDReportMainViewGrid_Loaded;
        }

        private IEventAggregator _eventAggregator { get; set; }
        private void SetFocus()
        {
            chartResultsTab.IsSelected = true;
            chartResultsTab.Focusable = true;
            chartResultsTab.Focus();
        }
        //FB 14797 Subscribe to event after the page loaded to make sure eventAggregator is available
        private void PSDReportMainViewGrid_Loaded(object sender, System.Windows.RoutedEventArgs e)
        {
            _eventAggregator = ContainerLocator.Container.Resolve<IEventAggregator>();
            _eventAggregator?.GetEvent<GraphLoadedCountNotification>().Subscribe(OnGraphLoadedCountNotification);
        }

        //FB 14797 Set the focus to first tab (chartOptTab) after the graph is fully loaded (3 sec) 
        private void OnGraphLoadedCountNotification(GraphLoadedCountNotificationArg arg)
        {
            if (null != DataContext && (IBaseViewModel)DataContext != arg.ParentVM) return;
            Task.Run(() =>
            {
                Thread.Sleep(TimeSpan.FromSeconds(3));
                Dispatcher.BeginInvoke((Action)SetFocus);
            });
        }
    }
}