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;

namespace AIPractice.LabelEditor
{
    /// <summary>
    /// Interaction logic for RootLabelView.xaml
    /// </summary>
    public partial class RootLabelView : UserControl
    {
        public RootLabelView()
        {
            InitializeComponent();
        }

        private void OnDeleteClick(object sender, RoutedEventArgs e)
        {
            if (MessageBox.Show("确认删除此标签吗？", "删除标签", MessageBoxButton.YesNo, MessageBoxImage.Question) ==
                MessageBoxResult.Yes)
            {
                var rootLabelViewModel = DataContext as RootLabelViewModel;
                if (rootLabelViewModel != null)
                {
                    App.Container.Labels.Remove(rootLabelViewModel);
                }
            }
        }


        private void OnUpDownClick(object sender, UpDown e)
        {
            var rootLabelViewModel = DataContext as RootLabelViewModel;
            if (rootLabelViewModel != null)
            {
                var rootLabel = rootLabelViewModel.RootLabel;
                var index = App.Container.Labels.IndexOf(rootLabelViewModel);
                if (e == UpDown.Up)
                {
                    if (index > 0)
                    {
                        App.Container.Container.Labels.Remove(rootLabel);
                        App.Container.Labels.Remove(rootLabelViewModel);
                        App.Container.Container.Labels.Insert(index -1,rootLabel);
                        App.Container.Labels.Insert(index - 1, rootLabelViewModel);
                    }
                }
                else
                {
                    if (index < App.Container.Labels.Count - 1)
                    {
                        App.Container.Container.Labels.Remove(rootLabel);
                        App.Container.Labels.Remove(rootLabelViewModel);
                        App.Container.Container.Labels.Insert(index + 1, rootLabel);
                        App.Container.Labels.Insert(index + 1, rootLabelViewModel);
                    }
                }
            }
        }
    }
}