/*
  * Copyright (c) 2025 LG Electronics Inc.
   * SPDX-License-Identifier: LicenseRef-LGE-Proprietary
   */
using Aurora.Api.DataType;
using System;
using System.Drawing;

namespace VisionCommon {
    /// <summary>
    /// ¸ÖƼ ÆÐÅÏ¿ë °³º° ÆÐÅÏ ¹øÈ£. Âü°í·Î ÆÐÅÏ À妽º 0Àº Master ÆÐÅÏ, 1ºÎÅÍ 8Àº Slave ÆÐÅÏÀÌ´Ù.
    /// </summary>
    public enum eRoiIdx {
        Roi0, Roi1, Roi2, Roi3, Roi4, Roi5, Roi6, Roi7, Roi8, Roi9
    }

    public class ROI : ICloneable {
        public double CenterX { get; set; } = 0;
        public double CenterY { get; set; } = 0;
        public int Width { get; set; } = 0;
        public int Height { get; set; } = 0;
        public Angle Angle { get; set; } = new Angle();
        public eRoiIdx RoiIdx { get; set; } = eRoiIdx.Roi0;       // Default : 0
        public eColor RoiColor { get; set; } = eColor.Cyan;       // Default : Cyan

        public ImagePoint Center {
            get {
                return new ImagePoint(CenterX, CenterY);
            }
            private set {
                CenterX = value.X;
                CenterY = value.Y;
            }
        }

        #region Unrotated ROI Pos
        public ImagePoint LeftTop {
            get { return new ImagePoint(Left, Top); }
        }
        public ImagePoint RightBottom {
            get { return new ImagePoint(Right, Bottom); }
        }
        public int Left {
            get { return (int)(CenterX - (Width * 0.5)); }
        }
        public int Right {
            get { return (int)(CenterX + (Width * 0.5)); }
        }
        public int Top {
            get { return (int)(CenterY - (Height * 0.5)); }
        }
        public int Bottom {
            get { return (int)(CenterY + (Height * 0.5)); }
        }
        #endregion

        #region Rotated ROI Pos
        public ImagePoint RotatedLeftTop {
            get { return GetRotatedLeftTop(this); }
        }
        public ImagePoint RotatedRightBottom {
            get { return GetRotatedRightBottom(this); }
        }
        public ImagePoint RotatedLeftCenter {
            get { return GetRotatedLeftCenter(this); }
        }
        public ImagePoint RotatedRightCenter {
            get { return GetRotatedRightCenter(this); }
        }
        public static ImagePoint GetRotatedLeftTop(ROI roi) {
            return MathUtil.Rotate(roi.LeftTop, roi.Angle, roi.Center) as ImagePoint;
        }
        public static ImagePoint GetRotatedRightBottom(ROI roi) {
            return MathUtil.Rotate(roi.RightBottom, roi.Angle, roi.Center) as ImagePoint;
        }
        public static ImagePoint GetRotatedLeftCenter(ROI roi) {
            var leftCenter = new ImagePoint() {
                X = roi.Left,
                Y = roi.Top + (roi.Height / 2)
            };
            return MathUtil.Rotate(leftCenter, roi.Angle, roi.Center) as ImagePoint;
        }
        public static ImagePoint GetRotatedRightCenter(ROI roi) {
            var rightCenter = new ImagePoint() {
                X = roi.Right,
                Y = roi.Bottom - (roi.Height / 2)
            };
            return MathUtil.Rotate(rightCenter, roi.Angle, roi.Center) as ImagePoint;
        }
        #endregion

        public ROI() { }

        public ROI(
            ImagePoint center,
            int width,
            int height,
            eRoiIdx roiIdx = eRoiIdx.Roi0,
            eColor roiColor = eColor.Cyan)
            : this(center.X, center.Y, width, height, roiIdx, roiColor) {
        }

        public ROI(
            double centerX,
            double centerY,
            int width,
            int height,
            eRoiIdx roiIdx = eRoiIdx.Roi0,
            eColor roiColor = eColor.Cyan)
            : this(centerX, centerY, width, height, new Angle(), roiIdx, roiColor) {
        }

        public ROI(
            ImagePoint center,
            int width,
            int height,
            Angle angle,
            eRoiIdx roiIdx = eRoiIdx.Roi0,
            eColor roiColor = eColor.Cyan)
            : this(center.X, center.Y, width, height, angle, roiIdx, roiColor) {
        }

        public ROI(
            double centerX,
            double centerY,
            int width,
            int height,
            Angle angle,
            eRoiIdx roiIdx = eRoiIdx.Roi0,
            eColor roiColor = eColor.Cyan) {
            CenterX = centerX;
            CenterY = centerY;
            Width = width;
            Height = height;
            Angle = angle.Clone() as Angle;
            RoiIdx = roiIdx;
            RoiColor = roiColor;
        }

        public static bool IsNullOrEmpty(ROI roi) {
            if (roi == null) {
                return true;
            }

            return roi.Width == 0 || roi.Height == 0;
        }

        public object Clone() {
            return new ROI(CenterX, CenterY, Width, Height, Angle.Clone() as Angle, RoiIdx, RoiColor);
        }

        public override string ToString() {
            return $"Left : {Left:F2}, Right : {Right:F2}, Center : {Center}, " +
                $"Top : {Top:F2}, Bottom : {Bottom:F2}, " +
                $"Width : {Width:F2}, Height : {Height:F2}, Angle : {Angle}, " +
                $"RoiIdx : {RoiIdx}, RoiColor : {RoiColor.ToString()}";
        }

        public static ROI Translate(ROI roi, ImagePoint translation) {
            return new ROI(
                (roi.Center + translation) as ImagePoint,
                roi.Width,
                roi.Height,
                roi.Angle.Clone() as Angle,
                roi.RoiIdx,
                roi.RoiColor);
        }

        public static bool IsOutsideImage(ROI roi, ImageSize imageSize) {
            if (roi.Left < 0) {
                return true;
            }
            if (roi.Top < 0) {
                return true;
            }
            if (imageSize.Width <= roi.Right) {
                return true;
            }
            if (imageSize.Height <= roi.Bottom) {
                return true;
            }
            return false;
        }

        public static ROI FitRoiToImage(ROI roi, ImageSize imageSize) {
            int left = roi.Left;
            int right = roi.Right;
            int top = roi.Top;
            int bottom = roi.Bottom;

            if (roi.Left < 0) {
                left = 0;
            }
            if (roi.Top < 0) {
                top = 0;
            }
            if (imageSize.Width <= roi.Right) {
                right = imageSize.Width - 1;
            }
            if (imageSize.Height <= roi.Bottom) {
                bottom = imageSize.Height - 1;
            }

            var roiCenter = new ImagePoint(
                (left + right) * 0.5,
                (top + bottom) * 0.5);

            return new ROI(
                roiCenter,
                right - left,
                bottom - top,
                roi.Angle);
        }

        public static Rectangle ToRectangle(ROI roi) {
            return new Rectangle(
                roi.Left,
                roi.Top,
                roi.Width,
                roi.Height);
        }

        public static ROI FromRectangle(Rectangle rectangle) {
            return new ROI(
                rectangle.Left + (rectangle.Width * 0.5),
                rectangle.Top + (rectangle.Height * 0.5),
                rectangle.Width,
                rectangle.Height,
                new Angle());
        }
    }
}