using System.Windows;
using Prism.Ioc;
using XP.ImageProcessing.RoiControl.Controls;
using XplorePlane.ViewModels;

namespace XplorePlane.Views.ImageProcessing
{
    public partial class BubbleMeasurePanel : Window
    {
        private PolygonRoiCanvas _canvas;

        public BubbleMeasurePanel()
        {
            InitializeComponent();
            Loaded += OnLoaded;
        }

        private void OnLoaded(object sender, RoutedEventArgs e)
        {
            // 获取主界面的 RoiCanvas
            try
            {
                var mainWin = Owner as MainWindow;
                if (mainWin != null)
                {
                    _canvas = FindChild<PolygonRoiCanvas>(mainWin);
                }
            }
            catch { }

            // 工具切换
            RbRoi.Checked += (s, ev) => _canvas?.SetBubbleTool(PolygonRoiCanvas.BubbleSubTool.Roi);
            RbWand.Checked += (s, ev) => _canvas?.SetBubbleTool(PolygonRoiCanvas.BubbleSubTool.Wand);
            RbBrush.Checked += (s, ev) => _canvas?.SetBubbleTool(PolygonRoiCanvas.BubbleSubTool.Brush);
            RbEraser.Checked += (s, ev) => _canvas?.SetBubbleTool(PolygonRoiCanvas.BubbleSubTool.Eraser);

            // 阈值同步
            SliderThreshold.ValueChanged += (s, ev) =>
            {
                TbThreshold.Text = ((int)SliderThreshold.Value).ToString();
                _canvas?.SetBubbleThreshold((int)SliderThreshold.Value);
            };

            // 画笔大小同步
            SliderBrushSize.ValueChanged += (s, ev) =>
            {
                TbBrushSize.Text = ((int)SliderBrushSize.Value).ToString();
                _canvas?.SetBubbleBrushSize((int)SliderBrushSize.Value);
            };

            // 监听 canvas 的工具切换事件（ROI 画完后自动切换时同步面板）
            if (_canvas != null)
            {
                _canvas.BubbleToolChanged += (s, ev) =>
                {
                    // 同步面板 radio button
                };

                _canvas.MeasureCompleted += (s, ev) =>
                {
                    if (ev is MeasureCompletedEventArgs args && args.MeasureType == "BubbleVoid")
                    {
                        TbResult.Text = $"空隙率: {args.Distance:F1}%";
                    }
                };
            }
        }

        private void ClearMask_Click(object sender, RoutedEventArgs e)
        {
            _canvas?.ClearBubbleMeasure();
            TbResult.Text = "空隙率: --";
        }

        private void Undo_Click(object sender, RoutedEventArgs e)
        {
            _canvas?.UndoBubble();
        }

        private void Finish_Click(object sender, RoutedEventArgs e)
        {
            Close();
        }

        private static T FindChild<T>(DependencyObject parent) where T : DependencyObject
        {
            int count = System.Windows.Media.VisualTreeHelper.GetChildrenCount(parent);
            for (int i = 0; i < count; i++)
            {
                var child = System.Windows.Media.VisualTreeHelper.GetChild(parent, i);
                if (child is T t) return t;
                var result = FindChild<T>(child);
                if (result != null) return result;
            }
            return null;
        }
    }
}