using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using UIStandard.Common;
using Prism.Commands;
using Prism.Regions;
using Prism.Mvvm;
using Prism.Events;
using Prism.Services.Dialogs;

namespace UIStandard.Start.ViewModels
{
    public class MainViewModel : BindableBase
    {

        #region Show Loading
        private int _viewBlur;

        public int ViewBlur
        {
            get { return _viewBlur; }
            set { SetProperty(ref _viewBlur, value); }
        }

        private bool _showLoading;

        public bool ShowLoading
        {
            get { return _showLoading; }
            set
            {
                SetProperty(ref _showLoading, value, () =>
                {
                    ViewBlur = value ? 5 : 0;
                });
            }
        }

        private string _loadingTip;

        public string LoadingTip
        {
            get { return _loadingTip; }
            set { SetProperty(ref _loadingTip, value); }
        }
        #endregion


        IRegionManager _regionManager;

        public MainViewModel(IDialogService dialogService, 
            IRegionManager regionManager,
            IEventAggregator eventAggregator)
        {
            _regionManager = regionManager;

            //打开登录弹窗
            dialogService.ShowDialog("UserLoginView", result =>
            {
                if (result.Result != ButtonResult.OK)
                {
                    System.Environment.Exit(0);
                }
            });


            eventAggregator.GetEvent<LoadingEvent>()
                .Subscribe(tip =>
                {
                    //显示或隐藏Loading动画
                    ShowLoading = !ShowLoading;
                    this.LoadingTip = tip;
                });
        }
    }
}