using Prism.Mvvm;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace TeamAAS_VP.Controls
{
    /// <summary>
    /// 支持旋转的矩形
    /// </summary>
    public class RotatedRect : BindableBase
    {
        private double _x;
        private double _y;
        private double _width;
        private double _height;
        private double _angle; // 旋转角度，单位：度

        public double X
        {
            get => _x;
            set => SetProperty(ref _x, value);
        }

        public double Y
        {
            get => _y;
            set => SetProperty(ref _y, value);
        }

        public double Width
        {
            get => _width;
            set => SetProperty(ref _width, Math.Max(0, value));
        }

        public double Height
        {
            get => _height;
            set => SetProperty(ref _height, Math.Max(0, value));
        }

        public double Angle
        {
            get => _angle;
            set => SetProperty(ref _angle, NormalizeAngle(value));
        }

        public double CenterX => X + Width / 2;
        public double CenterY => Y + Height / 2;

        public RotatedRect()
        {
        }

        public RotatedRect(double x, double y, double width, double height, double angle = 0)
        {
            X = x;
            Y = y;
            Width = width;
            Height = height;
            Angle = angle;
        }

        private double NormalizeAngle(double angle)
        {
            // 将角度规范到0-360度
            angle %= 360;
            if (angle < 0) angle += 360;
            return angle;
        }

        public System.Windows.Rect ToRect()
        {
            return new System.Windows.Rect(X, Y, Width, Height);
        }

        public OpenCvSharp.RotatedRect ToCvRotatedRect()
        {
            var center = new OpenCvSharp.Point2f((float)CenterX, (float)CenterY);
            var size = new OpenCvSharp.Size2f((float)Width, (float)Height);
            return new OpenCvSharp.RotatedRect(center, size, (float)Angle);
        }

        public bool ContainsPoint(System.Windows.Point point)
        {
            // 简化版：不考虑旋转的包含检测
            return point.X >= X && point.X <= X + Width &&
                   point.Y >= Y && point.Y <= Y + Height;
        }

        public override string ToString()
        {
            return $"X={X:F1}, Y={Y:F1}, W={Width:F1}, H={Height:F1}, Angle={Angle:F1}°";
        }
    }

    /// <summary>
    /// ROI操作模式
    /// </summary>
    public enum RoiOperationMode
    {
        None,           // 无操作
        Draw,           // 绘制
        Move,           // 移动
        Resize,         // 调整大小
        Rotate,         // 旋转
        CornerResize    // 角点调整
    }

    /// <summary>
    /// 拖动控制点类型
    /// </summary>
    public enum DragHandleType
    {
        None,
        TopLeft,
        TopRight,
        BottomLeft,
        BottomRight,
        Top,
        Right,
        Bottom,
        Left,
        Rotate
    }
}