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

namespace DrillTools
{
    /// <summary>
    /// 拖动提示窗口，显示刀具信息
    /// </summary>
    public class DragToolTipWindow : Window
    {
        private readonly TextBlock _textBlock;
        
        public DragToolTipWindow()
        {
            // 设置窗口样式
            WindowStyle = WindowStyle.None;
            AllowsTransparency = true;
            Background = System.Windows.Media.Brushes.Transparent;
            ShowInTaskbar = false;
            Topmost = true;
            IsHitTestVisible = false; // 不拦截鼠标事件
            SizeToContent = SizeToContent.WidthAndHeight; // 根据内容自动调整大小
            MaxWidth = 200; // 限制最大宽度
            MaxHeight = 50; // 限制最大高度
            
            // 创建内容容器
            var border = new Border
            {
                Background = new SolidColorBrush(System.Windows.Media.Color.FromArgb(224, 255, 255, 255)),
                BorderBrush = new SolidColorBrush(System.Windows.Media.Color.FromRgb(0, 120, 212)),
                BorderThickness = new Thickness(1),
                CornerRadius = new CornerRadius(3),
                Padding = new Thickness(5, 2, 5, 2),
                Effect = new System.Windows.Media.Effects.DropShadowEffect
                {
                    Color = System.Windows.Media.Colors.Black,
                    Direction = 315,
                    ShadowDepth = 2,
                    BlurRadius = 5,
                    Opacity = 0.3
                }
            };
            
            // 创建文本显示
            _textBlock = new TextBlock
            {
                FontWeight = FontWeights.Bold,
                FontSize = 10, // 减小字体大小
                TextTrimming = TextTrimming.CharacterEllipsis // 文本过长时显示省略号
            };
            
            border.Child = _textBlock;
            Content = border;
        }
        
        /// <summary>
        /// 设置刀具信息
        /// </summary>
        /// <param name="tool">刀具项</param>
        public void SetToolInfo(ToolItem tool)
        {
            _textBlock.Text = $"T{tool.ToolNumber:D2} - {tool.Diameter:F3}mm";
        }
        
        /// <summary>
        /// 更新窗口位置
        /// </summary>
        /// <param name="position">鼠标位置</param>
        public void UpdatePosition(System.Windows.Point position)
        {
            // 将提示窗口显示在鼠标右下方，稍微偏移以避免遮挡
            // 确保窗口不会超出屏幕边界
            double left = position.X + 15;
            double top = position.Y - 35;
            
            // 获取屏幕尺寸
            var screenWidth = SystemParameters.PrimaryScreenWidth;
            var screenHeight = SystemParameters.PrimaryScreenHeight;
            
            // 先设置位置，然后获取实际尺寸
            Left = left;
            Top = top;
            
            // 确保窗口不会超出右边界
            if (left + ActualWidth > screenWidth)
            {
                left = position.X - ActualWidth - 15;
            }
            
            // 确保窗口不会超出左边界
            if (left < 0)
            {
                left = 5;
            }
            
            // 确保窗口不会超出下边界
            if (top + ActualHeight > screenHeight)
            {
                top = position.Y - ActualHeight - 5;
            }
            
            // 确保窗口不会超出上边界
            if (top < 0)
            {
                top = position.Y + 15;
            }
            
            // 重新设置最终位置
            Left = left;
            Top = top;
        }
    }
}