using System;
using System.Collections.Generic;
using System.Configuration;
using System.Linq;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;
using Tango.FSE.Common;
using Tango.FSE.Common.Navigation;
using Tango.MachineService.Gateway;

namespace Tango.FSE.UI.ViewModels
{
    public class LoadingViewVM : FSEViewModel
    {
        private bool _isLoading;
        public bool IsLoading
        {
            get { return _isLoading; }
            set { _isLoading = value; RaisePropertyChangedAuto(); }
        }

        public override void OnApplicationStarted()
        {
            Init();
        }

        private async void Init()
        {
            try
            {
                LogManager.Log("Loading available environments...");
                IsLoading = true;
                await Task.Delay(2000);
                await Services.GatewayService.GetEnvironments();
                await NavigationManager.NavigateTo(NavigationView.LoginView);
            }
            catch (Exception ex)
            {
                LogManager.Log(ex, "Error retrieving environments from gateway.");
                if (await NotificationProvider.ShowWarningQuestion($"Error retrieving environments from gateway service.\n{ex.Message}", "TRY AGAIN", "EXIT"))
                {
                    Init();
                    return;
                }

                ApplicationManager.ShutDown();
            }
            finally
            {
                IsLoading = false;
            }
        }
    }
}