using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using OpenCvSharp;
using Vision.Recognition.Helper.OpenCv;

namespace Vision.Recognition.Task
{
    /// <summary>
    /// 捕获的内容
    /// 以及一些多个trigger会用到的内容
    /// </summary>
    public class CaptureContent
    {
        public static readonly int MaxFrameIndexSecond = 60;

        public Bitmap SrcBitmap { get; }
        public int FrameIndex { get; private set; }
        public int FrameRate { get; private set; }

        public CaptureContent(Bitmap srcBitmap, int frameIndex, int frameRate)
        {
            SrcBitmap = srcBitmap;
            FrameIndex = frameIndex;
            FrameRate = frameRate;
        }

        private Mat? _srcMat;

        public Mat SrcMat
        {
            get
            {
                _srcMat ??= SrcBitmap.ToMat();
                return _srcMat;
            }
        }

        private Mat? _srcGreyMat;

        public Mat SrcGreyMat
        {
            get
            {
                _srcGreyMat ??= new Mat();
                Cv2.CvtColor(SrcMat, _srcGreyMat, ColorConversionCodes.BGR2GRAY);
                return _srcGreyMat;
            }
        }

        /// <summary>
        /// 达到了什么时间间隔
        /// 最大MaxFrameIndexSecond秒
        /// </summary>
        /// <param name="interval"></param>
        /// <returns></returns>
        public bool IsReachInterval(TimeSpan interval)
        {
            if (interval.TotalSeconds > MaxFrameIndexSecond)
            {
                throw new ArgumentException($"时间间隔不能超过{MaxFrameIndexSecond}s");
            }

            return FrameIndex % (FrameRate * interval.TotalSeconds) == 0;
        }
    }
}