using Aurora.Api;
using System.Windows;
using System.ComponentModel;
using System.Windows.Threading;
using VisionCommon;

namespace VisionCommonUI {
    public partial class CamDeviceSettingWindow : Window {
        private static Logger _Logger = new Logger(typeof(CamDeviceSettingWindow).Name);
        private FovInfo _FovInfo;

        public static CamDeviceSettingWindow _Instance = null;
        private static readonly object _Lock = new object();
        private delegate void HideWindow();

        public static CamDeviceSettingWindow Instance {
            get {
                lock (_Lock) {
                    if (_Instance == null) {
                        _Instance = new CamDeviceSettingWindow();
                    }
                    return _Instance;
                }
            }
        }

        private CamDeviceSettingWindow() {
            InitializeComponent();
        }

        public void Show(FovInfo fovInfo, ICameraDisplay cameraDisplay) {
            _FovInfo = fovInfo;
            if (gridCamDeviceSettingView.Children.Count == 0) {
                var camDeviceSettingView = new CamDeviceSettingView(_FovInfo) {
                    DataContext = new CamDeviceSettingViewModel(_FovInfo, cameraDisplay)
                };
                gridCamDeviceSettingView.Children.Add(camDeviceSettingView);
            }
            this.Show();
        }

        protected override void OnClosing(CancelEventArgs e) {
            e.Cancel = true;
            Dispatcher.BeginInvoke(DispatcherPriority.Normal, new HideWindow(_HideWindow));
            gridCamDeviceSettingView.Children.Clear();
        }

        private void _HideWindow() {
            this.Hide();
        }
    }
}