using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Timers;
using System.Windows.Threading;
using Tango.SharedUI;

namespace Tango.MachineStudio.UI.ViewModels
{
    public class ConnectionLostViewVM : DialogViewVM
    {
        private Timer _reconnectTimer;

        public String Exception { get; set; }

        private int _reconnectinSeconds;
        public int ReconnectinSeconds
        {
            get { return _reconnectinSeconds; }
            set { _reconnectinSeconds = value; RaisePropertyChangedAuto(); }
        }

        private bool _autoReconnect;
        public bool AutoReconnect
        {
            get { return _autoReconnect; }
            set { _autoReconnect = value; RaisePropertyChangedAuto(); }
        }


        public ConnectionLostViewVM() : base()
        {
            ReconnectinSeconds = 10;
            _reconnectTimer = new Timer();
            _reconnectTimer.Interval = TimeSpan.FromSeconds(1).TotalMilliseconds;
            _reconnectTimer.Elapsed += _reconnectTimer_Elapsed;
        }

        private void _reconnectTimer_Elapsed(object sender, ElapsedEventArgs e)
        {
            ReconnectinSeconds--;

            if (ReconnectinSeconds == -1)
            {
                _reconnectTimer.Stop();

                InvokeUI(() =>
                {
                    Accept();
                });
            }
        }

        public override void OnShow()
        {
            base.OnShow();

            if (AutoReconnect)
            {
                _reconnectTimer.Start();
            }
        }

        protected override void Accept()
        {
            _reconnectTimer.Stop();
            base.Accept();
        }

        protected override void Cancel()
        {
            base.Cancel();
            _reconnectTimer.Stop();
        }
    }
}