using AI.Common.Log;
using AI.Common;
using RUSInferNet.Vision;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using RUSInferNet;

namespace HumanOrganSegDemo.HumanBodyPartAnalyser.OrganSegment
{
    public class HumanSurfaceHeartSegment : IHumanSurfaceOrganSegment
    {
        #region field
        private IInferenceNetwork _inferNet;
        private static InferenceConfig _inferenceCore = new InferenceConfig();
        private RawImage _rawImg;
        #endregion

        #region public funcs

        /// <summary>
        /// 通知订阅者，推理过程中发生了错误
        /// </summary>
        public event EventHandler<ErrorEventArgs> NotifyError;

        /// <summary>
        /// 通知订阅者，有log要记
        /// </summary>
        public event EventHandler<LogEventArgs> NotifyLogWrite;

        /// <summary>
        /// 实现单幅图心脏轮廓的分割
        /// </summary>
        /// <param name="rawImg">rawImg格式图像</param>
        /// <returns></returns>
        public IDetectedObject[] EvaluateOneImage(RawImage image, Rect roi)
        {
            try
            {
                _rawImg = image;
                //Rect cropRect = new Rect(0, 0, _rawImg.Width, _rawImg.Height);
                IContour[] imgROIs = new IContour[1];
                imgROIs[0] = roi.ToContour();
                //对一张图进行推理
                InferenceNetworkInputImage inferInput = new InferenceNetworkInputImage(_rawImg, imgROIs);
                IDetectedObject[] inferResult = _inferNet.Process(inferInput);
                var count = inferResult.Length;
                for (int ni = 0; ni < count; ni++)
                {
                    inferResult[ni] = (DetectedObject)inferResult[ni];
                }
                return inferResult;
            }
            catch (Exception excep)
            {
                NotifyError?.Invoke(this, new ErrorEventArgs(excep));
                return new DetectedObject[] { };
            }
        }

        /// <summary>
        /// 销毁
        /// </summary>
        public void Dispose()
        {
            DoDispose();
            GC.SuppressFinalize(this);
        }

        /// <summary>
        /// 析构函数
        /// </summary>
        ~HumanSurfaceHeartSegment()
        {
            DoDispose();
        }

        #endregion

        #region constructor

        /// <summary>
        /// 构造函数
        /// </summary>
        /// <param name="numCpu"></param>
        /// <param name="netDir"></param>
        /// <param name="workName"></param>
        /// <exception cref="Exception"></exception>
        public HumanSurfaceHeartSegment(int numCpu, string netDir)
        {
            try
            {
                _inferNet = new InferNetOnnxHumanSurfaceHeartSeg();
                if (!_inferNet.NetworkLoaded)
                {
                    //string netDir = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Networks");
                    // 设置inferCore的参数
                    Dictionary<EnumInferenceConfigKey, string> config = new Dictionary<EnumInferenceConfigKey, string>{
                                { EnumInferenceConfigKey.CPU_THREADS_NUM, numCpu.ToString()}};
                    _inferenceCore.SetConfig(config, EnumDeviceType.CPU);
                    _inferNet.LoadNetwork(_inferenceCore, EnumDeviceType.CPU, netDir);
                }
            }
            catch (Exception excep)
            {
                throw new Exception("Failed at Loading network:" + excep);
            }
        }

        #endregion

        #region private funcs

        /// <summary>
        /// 主动销毁
        /// </summary>
        private void DoDispose()
        {
            _inferNet?.Dispose();
            _inferNet = null;
        }

        #endregion
    }

}