using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using VisionCommon;
using VisionUI;
using VisionUI.Camera;
using VisionUI.Pattern;

namespace WeldingCommon.Views.Manual
{
    /// <summary>
    /// UCManualModelFinder.xaml에 대한 상호 작용 논리
    /// </summary>
    public partial class UCManualModelFinder : UserControl
    {
        private UCManualModelFinderViewModel _ViewModel;
        private FovInfo _FovInfo;
        private UserControl _cameraView;

        public UCManualModelFinder(UCManualModelFinderViewModel viewModel)
        {
            InitializeComponent();

            _ViewModel = viewModel;
            DataContext = _ViewModel;

            _FovInfo = VisionRecipeManager.GetFovInfos().FirstOrDefault();
            //CreateScannerCameraView();
        }


        private void CreateScannerCameraView()
        {
            if (gridScannerCameraView.Children.Count == 0) {
                var fovInfo = VisionRecipeManager.GetFovInfos().FirstOrDefault();
                if (fovInfo != null) {
                    _cameraView = IpViewManager.CreateCameraView(fovInfo, eDisplayType.Pattern);
                    gridScannerCameraView.Children.Add(_cameraView);
                }
            }
        }

        private void uc_IsVisibleChanged(object sender, DependencyPropertyChangedEventArgs e)
        {
            bool isVisible = (bool)e.NewValue;
            if (isVisible == true) {
                // 끝날 때, Dispose 시키면 아예 지워짐. 처음 시작할 때, 비우고 다시 시작하는 것이 임시방편으로 좋을 듯 함. 
                Dispose();
                RefreshVisionRecipes();
                CreateCameraView();
                CreatePatternListView();
            } else {
                CameraUcManager.Instance.StopLiveAll();
            }
        }

        private void TreeView_SelectedItemChanged(object sender, RoutedPropertyChangedEventArgs<object> e)
        {
            var viewModel = DataContext as UCManualModelFinderViewModel;

            FileSystemItem _selectItem = (FileSystemItem)viewModel.SelectedItem;
            if (_selectItem != null) _selectItem.IsSelected = false;

            // Update selection state
            if (e.NewValue is FileSystemItem selectedItem) {
                selectedItem.IsSelected = true;
                viewModel.SelectedItem = selectedItem;
            }
            if (e.OldValue is FileSystemItem oldItem) {
                oldItem.IsSelected = false;
            }
        }

        private void RefreshVisionRecipes()
        {
            _FovInfo = VisionRecipeManager.GetFovInfo(_FovInfo);
        }

        private void CreateCameraView()
        {
            _cameraView = IpViewManager.CreateCameraView(_FovInfo, eDisplayType.Pattern);
            gridScannerCameraView.Children.Add(_cameraView);
        }
        private void CreatePatternListView()
        {
            var patterrnListView = new PatternListView(_FovInfo);
            var patternSettingViewModel = IpViewManager.CreateFovPatternListViewModel(_FovInfo, _cameraView);

            patterrnListView.DataContext = patternSettingViewModel;
            gridPatternListView.Children.Add(patterrnListView);
        }

        private void Dispose()
        {
            foreach (var child in gridScannerCameraView.Children)
            {
                if (child is UserControl view)
                {
                    IpViewManager.DisposeCameraView(view);
                }
            }
            gridScannerCameraView.Children.Clear();

            foreach (var child in gridPatternListView.Children) {
                if (child is PatternListView patternListView) {
                    patternListView = null;
                }
            }
            gridPatternListView.Children.Clear();
        }
    }
}