using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using System.Windows.Media.Animation;

namespace SWRIS.Controls
{
    /// <summary>
    /// RopeControl.xaml 的交互逻辑
    /// </summary>
    public partial class RopeEquipmentControl : UserControl
    {
        private Canvas _ropeCanvas; // 添加Canvas引用
        private readonly Storyboard _animationStoryboard;

        public RopeEquipmentControl()
        {
            InitializeComponent();

            // 初始化动画
            _animationStoryboard = (Storyboard)Resources["RopeAnimation"];

            // 设置初始动画值
            UpdateAnimationValues();

            // 订阅SizeChanged事件
            SizeChanged += RopeEquipmentControl_SizeChanged;

            // 订阅Loaded事件，确保控件加载完成后获取正确的尺寸
            Loaded += RopeEquipmentControl_Loaded;
        }
        #region 依赖属性

        // 绳索高度
        public static readonly DependencyProperty RopeHeightProperty =
            DependencyProperty.Register("RopeHeight", typeof(double), typeof(RopeEquipmentControl),
                new PropertyMetadata(900.0));

        // 绳索图片
        public static readonly DependencyProperty RopeImageSourceProperty =
            DependencyProperty.Register("RopeImageSource", typeof(ImageSource), typeof(RopeEquipmentControl));

        // 设备图片
        public static readonly DependencyProperty EquipmentImageSourceProperty =
            DependencyProperty.Register("EquipmentImageSource", typeof(ImageSource), typeof(RopeEquipmentControl));

        // 是否运行动画
        public static readonly DependencyProperty IsAnimationRunningProperty =
            DependencyProperty.Register("IsAnimationRunning", typeof(bool), typeof(RopeEquipmentControl),
                new PropertyMetadata(false, OnIsAnimationRunningChanged));

        // 动画方向（正向/反向）
        public static readonly DependencyProperty IsAnimationReversedProperty =
            DependencyProperty.Register("IsAnimationReversed", typeof(bool), typeof(RopeEquipmentControl),
                new PropertyMetadata(false, OnAnimationDirectionChanged));

        // 动画速度（秒）
        public static readonly DependencyProperty AnimationDurationProperty =
            DependencyProperty.Register("AnimationDuration", typeof(double), typeof(RopeEquipmentControl),
                new PropertyMetadata(0.5, OnAnimationDurationChanged));

        // 数据面板位置
        public static readonly DependencyProperty PanelMarginProperty =
            DependencyProperty.Register("PanelMargin", typeof(Thickness), typeof(RopeEquipmentControl));

        // 数据面板文字大小
        public static readonly DependencyProperty PanelNameFontSizeProperty =
            DependencyProperty.Register("PanelNameFontSize", typeof(double), typeof(RopeEquipmentControl),
                new PropertyMetadata(28d));

        // 数据面板文字大小
        public static readonly DependencyProperty PanelValueFontSizeProperty =
            DependencyProperty.Register("PanelValueFontSize", typeof(double), typeof(RopeEquipmentControl),
                new PropertyMetadata(28d));

        // 设备图片位置
        public static readonly DependencyProperty EquipmentTopPositionProperty =
            DependencyProperty.Register("EquipmentTopPosition", typeof(double), typeof(RopeEquipmentControl));



        #endregion
        #region 属性包装器

        public double RopeHeight
        {
            get => (double)GetValue(RopeHeightProperty);
            set => SetValue(RopeHeightProperty, value);
        }

        public ImageSource RopeImageSource
        {
            get => (ImageSource)GetValue(RopeImageSourceProperty);
            set => SetValue(RopeImageSourceProperty, value);
        }

        public ImageSource EquipmentImageSource
        {
            get => (ImageSource)GetValue(EquipmentImageSourceProperty);
            set => SetValue(EquipmentImageSourceProperty, value);
        }
        public bool IsAnimationRunning
        {
            get => (bool)GetValue(IsAnimationRunningProperty);
            set => SetValue(IsAnimationRunningProperty, value);
        }

        public bool IsAnimationReversed
        {
            get => (bool)GetValue(IsAnimationReversedProperty);
            set => SetValue(IsAnimationReversedProperty, value);
        }

        public double AnimationDuration
        {
            get => (double)GetValue(AnimationDurationProperty);
            set => SetValue(AnimationDurationProperty, value);
        }
        public Thickness PanelMargin
        {
            get => (Thickness)GetValue(PanelMarginProperty);
            set => SetValue(PanelMarginProperty, value);
        }
        public double PanelNameFontSize
        {
            get => (double)GetValue(PanelNameFontSizeProperty);
            set => SetValue(PanelNameFontSizeProperty, value);
        }
        public double PanelValueFontSize
        {
            get => (double)GetValue(PanelValueFontSizeProperty);
            set => SetValue(PanelValueFontSizeProperty, value);
        }
        public double EquipmentTopPosition
        {
            get => (double)GetValue(EquipmentTopPositionProperty);
            set => SetValue(EquipmentTopPositionProperty, value);
        }
        #endregion
        #region 事件处理

        private void RopeEquipmentControl_Loaded(object sender, RoutedEventArgs e)
        {
            // 控件加载完成后更新RopeHeight
            UpdateRopeHeight();
        }

        private void RopeEquipmentControl_SizeChanged(object sender, SizeChangedEventArgs e)
        {
            // 当控件大小改变时更新RopeHeight
            UpdateRopeHeight();
        }

        /// <summary>
        /// 更新绳索高度以适应容器大小
        /// </summary>
        private void UpdateRopeHeight()
        {
            try
            {
                // 获取Canvas引用
                if (_ropeCanvas == null)
                {
                    _ropeCanvas = FindName("RopeCanvas") as Canvas;
                    if (_ropeCanvas == null)
                    {
                        // 如果找不到Canvas，使用控件自身高度
                        RopeHeight = Math.Max(0, ActualHeight);
                        return;
                    }
                }

                // 使用Canvas的实际高度减去上下边距
                double newHeight = _ropeCanvas.ActualHeight;

                // 确保高度不为负数
                if (newHeight < 0)
                {
                    newHeight = 0;
                }

                // 只有当高度变化时才更新，避免不必要的重新渲染
                if (Math.Abs(RopeHeight - newHeight) > 0.1)
                {
                    RopeHeight = newHeight;
                }
            }
            catch (Exception)
            {
                // 出错时使用备用方案：使用控件自身高度
                try
                {
                    RopeHeight = Math.Max(0, ActualHeight);
                }
                catch
                {
                    // 如果还出错，使用默认值
                    RopeHeight = 900.0;
                }
            }
        }

        #endregion
        #region 动画控制

        private static void OnIsAnimationRunningChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            var control = (RopeEquipmentControl)d;
            control.UpdateAnimationState();
        }

        private static void OnAnimationDirectionChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            var control = (RopeEquipmentControl)d;
            control.UpdateAnimationValues();
        }

        private static void OnAnimationDurationChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            var control = (RopeEquipmentControl)d;
            control.UpdateAnimationValues();
        }

        private void UpdateAnimationValues()
        {
            var rectAnimation = (RectAnimation)_animationStoryboard.Children[0];
            rectAnimation.Duration = TimeSpan.FromSeconds(AnimationDuration);

            if (IsAnimationReversed)
            {
                rectAnimation.From = new Rect(0, -22, 26, 22);
                rectAnimation.To = new Rect(0, 0, 26, 22);
            }
            else
            {
                rectAnimation.From = new Rect(0, 0, 26, 22);
                rectAnimation.To = new Rect(0, -22, 26, 22);
            }

            if (IsAnimationRunning)
            {
                _animationStoryboard.Begin(this, true);
            }
        }

        private void UpdateAnimationState()
        {
            if (IsAnimationRunning)
            {
                _animationStoryboard.Begin(this, true);
            }
            else
            {
                _animationStoryboard.Stop(this);
            }
        }

        #endregion
        #region 公共方法

        public void StartAnimation(bool reversed = false)
        {
            IsAnimationReversed = reversed;
            IsAnimationRunning = true;
        }

        public void StopAnimation()
        {
            IsAnimationRunning = false;
        }

        public void ReverseAnimation()
        {
            IsAnimationReversed = !IsAnimationReversed;
        }

        #endregion
    }
}