#if !(PLATFORM_LUMIN && !UNITY_EDITOR)

#if !UNITY_WSA_10_0

using OpenCVForUnity.CoreModule;
using OpenCVForUnity.DnnModule;
using OpenCVForUnity.ImgprocModule;
using OpenCVForUnity.UnityUtils;
using OpenCVForUnity.UnityUtils.Helper;
using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;

namespace OpenCVForUnityExample
{
    /// <summary>
    /// LightweightPoseEstimation WebCam Example
    /// An example of DNN inference with a lightweight person pose estimation model using the KeypointsModel class.
    /// </summary>
    [RequireComponent(typeof(WebCamTextureToMatHelper))]
    public class LightweightPoseEstimationWebCamExample : MonoBehaviour
    {

        /// <summary>
        /// The texture.
        /// </summary>
        Texture2D texture;

        /// <summary>
        /// The webcam texture to mat helper.
        /// </summary>
        WebCamTextureToMatHelper webCamTextureToMatHelper;

        /// <summary>
        /// The FPS monitor.
        /// </summary>
        FpsMonitor fpsMonitor;


        Net net;

        KeypointsModel keypointsModel;

        const float inWidth = 256;
        const float inHeight = 256;

        const float inScale = 1.0f / 255f;

        double[] inMean = new double[] { 128.0, 128.0, 128.0 };

        double threshold = 0.1;

        Dictionary<string, int> BODY_PARTS = new Dictionary<string, int>() {
                        { "Nose", 0 }, { "Neck", 1 }, { "RShoulder", 2 }, { "RElbow", 3 }, {
                            "RWrist",
                            4
                        },
                        { "LShoulder",5 }, { "LElbow", 6 }, { "LWrist", 7 }, { "RHip", 8 }, {
                            "RKnee",
                            9
                        },
                        { "RAnkle", 10 }, { "LHip", 11 }, { "LKnee", 12 }, { "LAnkle", 13 }, {
                            "REye",
                            14
                        },
                        { "LEye", 15 }, { "REar", 16 }, { "LEar", 17 }, {
                            "Background",
                            18
                        }
                    };

        string[,] POSE_PAIRS = new string[,] {
                        { "Neck", "RShoulder" }, { "Neck", "LShoulder" }, {
                            "RShoulder",
                            "RElbow"
                        },
                        { "RElbow", "RWrist" }, { "LShoulder", "LElbow" }, {
                            "LElbow",
                            "LWrist"
                        },
                        { "Neck", "RHip" }, { "RHip", "RKnee" }, { "RKnee", "RAnkle" }, {
                            "Neck",
                            "LHip"
                        },
                        { "LHip", "LKnee" }, { "LKnee", "LAnkle" }, { "Neck", "Nose" }, {
                            "Nose",
                            "REye"
                        },
                        { "REye", "REar" }, { "Nose", "LEye" }, { "LEye", "LEar" }
            };


        /// <summary>
        /// MODEL_FILENAME
        /// </summary>
        string MODEL_FILENAME = "OpenCVForUnity/dnn/lightweight_pose_estimation_201912.onnx";

        /// <summary>
        /// The model filepath.
        /// </summary>
        string model_filepath;

#if UNITY_WEBGL
        IEnumerator getFilePath_Coroutine;
#endif

        // Use this for initialization
        void Start()
        {
            fpsMonitor = GetComponent<FpsMonitor>();

            webCamTextureToMatHelper = gameObject.GetComponent<WebCamTextureToMatHelper>();


#if UNITY_WEBGL
            getFilePath_Coroutine = GetFilePath();
            StartCoroutine(getFilePath_Coroutine);
#else
            model_filepath = Utils.getFilePath(MODEL_FILENAME);
            Run();
#endif
        }

#if UNITY_WEBGL
        private IEnumerator GetFilePath()
        {

            var getFilePathAsync_0_Coroutine = Utils.getFilePathAsync(MODEL_FILENAME, (result) =>
            {
                model_filepath = result;
            });
            yield return getFilePathAsync_0_Coroutine;

            getFilePath_Coroutine = null;

            Run();
        }
#endif

        // Use this for initialization
        void Run()
        {

            //if true, The error log of the Native side OpenCV will be displayed on the Unity Editor Console.
            Utils.setDebugMode(true);

            net = null;

            if (string.IsNullOrEmpty(model_filepath))
            {
                Debug.LogError(MODEL_FILENAME + " is not loaded. Please read “StreamingAssets/OpenCVForUnity/dnn/setup_dnn_module.pdf” to make the necessary setup.");
            }
            else
            {
                net = Dnn.readNet(model_filepath);

                keypointsModel = new KeypointsModel(net);
                keypointsModel.setInputScale(inScale);
                keypointsModel.setInputSize(new Size(inWidth, inHeight));
                keypointsModel.setInputMean(new Scalar(inMean));
                keypointsModel.setInputSwapRB(false);
                keypointsModel.setInputCrop(false);
            }


            Utils.setDebugMode(false);

            webCamTextureToMatHelper.Initialize();
        }

        /// <summary>
        /// Raises the webcam texture to mat helper initialized event.
        /// </summary>
        public void OnWebCamTextureToMatHelperInitialized()
        {
            Debug.Log("OnWebCamTextureToMatHelperInitialized");

            Mat webCamTextureMat = webCamTextureToMatHelper.GetMat();

            texture = new Texture2D(webCamTextureMat.cols(), webCamTextureMat.rows(), TextureFormat.RGB24, false);
            Utils.matToTexture2D(webCamTextureMat, texture);

            gameObject.GetComponent<Renderer>().material.mainTexture = texture;

            gameObject.transform.localScale = new Vector3(webCamTextureMat.cols(), webCamTextureMat.rows(), 1);
            Debug.Log("Screen.width " + Screen.width + " Screen.height " + Screen.height + " Screen.orientation " + Screen.orientation);

            if (fpsMonitor != null)
            {
                //fpsMonitor.Add("deviceName", webCamTextureToMatHelper.GetDeviceName().ToString());
                fpsMonitor.Add("width", webCamTextureToMatHelper.GetWidth().ToString());
                fpsMonitor.Add("height", webCamTextureToMatHelper.GetHeight().ToString());
                //fpsMonitor.Add("videoRotationAngle", webCamTextureToMatHelper.GetWebCamTexture().videoRotationAngle.ToString());
                //fpsMonitor.Add("videoVerticallyMirrored", webCamTextureToMatHelper.GetWebCamTexture().videoVerticallyMirrored.ToString());
                //fpsMonitor.Add("camera fps", webCamTextureToMatHelper.GetFPS().ToString());
                //fpsMonitor.Add("isFrontFacing", webCamTextureToMatHelper.IsFrontFacing().ToString());
                //fpsMonitor.Add("rotate90Degree", webCamTextureToMatHelper.rotate90Degree.ToString());
                //fpsMonitor.Add("flipVertical", webCamTextureToMatHelper.flipVertical.ToString());
                //fpsMonitor.Add("flipHorizontal", webCamTextureToMatHelper.flipHorizontal.ToString());
                fpsMonitor.Add("orientation", Screen.orientation.ToString());
            }


            float width = webCamTextureMat.width();
            float height = webCamTextureMat.height();

            float widthScale = (float)Screen.width / width;
            float heightScale = (float)Screen.height / height;
            if (widthScale < heightScale)
            {
                Camera.main.orthographicSize = (width * (float)Screen.height / (float)Screen.width) / 2;
            }
            else
            {
                Camera.main.orthographicSize = height / 2;
            }
        }

        /// <summary>
        /// Raises the webcam texture to mat helper disposed event.
        /// </summary>
        public void OnWebCamTextureToMatHelperDisposed()
        {
            Debug.Log("OnWebCamTextureToMatHelperDisposed");

            if (texture != null)
            {
                Texture2D.Destroy(texture);
                texture = null;
            }
        }

        /// <summary>
        /// Raises the webcam texture to mat helper error occurred event.
        /// </summary>
        /// <param name="errorCode">Error code.</param>
        public void OnWebCamTextureToMatHelperErrorOccurred(WebCamTextureToMatHelper.ErrorCode errorCode)
        {
            Debug.Log("OnWebCamTextureToMatHelperErrorOccurred " + errorCode);

            if (fpsMonitor != null)
            {
                fpsMonitor.consoleText = "ErrorCode: " + errorCode;
            }
        }

        // Update is called once per frame
        void Update()
        {
            if (webCamTextureToMatHelper.IsPlaying() && webCamTextureToMatHelper.DidUpdateThisFrame())
            {

                Mat img = webCamTextureToMatHelper.GetMat();


                if (net == null)
                {
                    Imgproc.putText(img, "model file is not loaded.", new Point(5, img.rows() - 30), Imgproc.FONT_HERSHEY_SIMPLEX, 0.7, new Scalar(255, 255, 255), 2, Imgproc.LINE_AA, false);
                    Imgproc.putText(img, "Please read console message.", new Point(5, img.rows() - 10), Imgproc.FONT_HERSHEY_SIMPLEX, 0.7, new Scalar(255, 255, 255), 2, Imgproc.LINE_AA, false);
                }
                else
                {
                    List<Point> points = keypointsModel.estimate(img, (float)threshold).toList();

                    for (int i = 0; i < POSE_PAIRS.GetLength(0); i++)
                    {
                        string partFrom = POSE_PAIRS[i, 0];
                        string partTo = POSE_PAIRS[i, 1];

                        int idFrom = BODY_PARTS[partFrom];
                        int idTo = BODY_PARTS[partTo];

                        if (points[idFrom] != null && points[idTo] != null)
                        {
                            Imgproc.line(img, points[idFrom], points[idTo], new Scalar(0, 255, 0), 3);
                            Imgproc.ellipse(img, points[idFrom], new Size(3, 3), 0, 0, 360, new Scalar(0, 0, 255), Core.FILLED);
                            Imgproc.ellipse(img, points[idTo], new Size(3, 3), 0, 0, 360, new Scalar(0, 0, 255), Core.FILLED);
                        }
                    }
                }

                Imgproc.cvtColor(img, img, Imgproc.COLOR_BGR2RGB);

                //Imgproc.putText (img, "W:" + img.width () + " H:" + img.height () + " SO:" + Screen.orientation, new Point (5, img.rows () - 10), Imgproc.FONT_HERSHEY_SIMPLEX, 1.0, new Scalar (255, 255, 255, 255), 2, Imgproc.LINE_AA, false);

                Utils.matToTexture2D(img, texture);
            }
        }

        /// <summary>
        /// Raises the destroy event.
        /// </summary>
        void OnDestroy()
        {
            webCamTextureToMatHelper.Dispose();

            if (keypointsModel != null)
                keypointsModel.Dispose();

            if (net != null)
                net.Dispose();

#if UNITY_WEBGL
            if (getFilePath_Coroutine != null)
            {
                StopCoroutine(getFilePath_Coroutine);
                ((IDisposable)getFilePath_Coroutine).Dispose();
            }
#endif
        }

        /// <summary>
        /// Raises the back button click event.
        /// </summary>
        public void OnBackButtonClick()
        {
            SceneManager.LoadScene("OpenCVForUnityExample");
        }

        /// <summary>
        /// Raises the play button click event.
        /// </summary>
        public void OnPlayButtonClick()
        {
            webCamTextureToMatHelper.Play();
        }

        /// <summary>
        /// Raises the pause button click event.
        /// </summary>
        public void OnPauseButtonClick()
        {
            webCamTextureToMatHelper.Pause();
        }

        /// <summary>
        /// Raises the stop button click event.
        /// </summary>
        public void OnStopButtonClick()
        {
            webCamTextureToMatHelper.Stop();
        }

        /// <summary>
        /// Raises the change camera button click event.
        /// </summary>
        public void OnChangeCameraButtonClick()
        {
            webCamTextureToMatHelper.requestedIsFrontFacing = !webCamTextureToMatHelper.requestedIsFrontFacing;
        }
    }
}

#endif

#endif