using OpenCVCompact;
using Serenegiant.UVC;
using UnityEngine;
using UnityEngine.UI;

[RequireComponent(typeof(OpenCVCompact.WebCamTextureToMatHelper))]
public class WebCamFaceDetectManager : FaceDetectManagerBase
{
    public RawImage image;
    public RawImage cutImage;
    bool webCamReady = false;
    private int[] _positionRect;
    //private Texture2D _cutTexture;

    //Image Capture
    OpenCVCompact.WebCamTextureToMatHelper _webCamTextureToMatHelper;
    protected override void InitMatHelper()
    {
        _webCamTextureToMatHelper = gameObject.GetComponent<OpenCVCompact.WebCamTextureToMatHelper>();
        _webCamTextureToMatHelper.Initialize();
    }
    protected override Mat GetMat()
    {
        if (!_webCamTextureToMatHelper.IsPlaying() || !_webCamTextureToMatHelper.DidUpdateThisFrame())
            return null;
        return _webCamTextureToMatHelper.GetMat();
    }

    protected override void Dispose()
    {
        _webCamTextureToMatHelper.Dispose();
    }
    protected override void DebugPint()
    {
        if (webCamReady == true)
        {
            if (mat4Display.rows() == _videoTexture.height)
            {
                mat4Display.copyTo(mat4DisplayTexture);
                Utils.matToTexture2D(mat4DisplayTexture, _videoTexture);
                
            }
            if (mat4Process.rows() == cutImage.texture.height)
            {
                Mat cutMat = mat4Process.clone();
                Texture2D cutTexture = new Texture2D(cutMat.cols(), cutMat.rows(), TextureFormat.RGBA32, false);
                Utils.matToTexture2D(cutMat, cutTexture);
                cutImage.texture = cutTexture;
            }
        }
    }
    public void OnWebCamTextureToMatHelperInitialized()
    {
        Mat webCamTextureMat = _webCamTextureToMatHelper.GetMat();

        _videoTexture = new Texture2D(webCamTextureMat.cols(), webCamTextureMat.rows(), TextureFormat.RGBA32, false);
        //gameObject.GetComponent<Renderer>().material.mainTexture = videoTexture;
        image.texture = _videoTexture;
        _positionRect = PictureUtility.GetPositionRect(webCamTextureMat.cols(), webCamTextureMat.rows());
        _cutTexture = new Texture2D(_positionRect[2], _positionRect[3], TextureFormat.RGBA32, false);
        cutImage.texture = _cutTexture;

        mat4Display = new Mat(webCamTextureMat.rows(), webCamTextureMat.cols(), CvType.CV_8UC4);
        mat4DisplayTexture = new Mat(webCamTextureMat.rows(), webCamTextureMat.cols(), CvType.CV_8UC4);

        LogPrint.Log("Screen.width " + Screen.width + " Screen.height " + Screen.height + " Screen.orientation " + Screen.orientation);

        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;
        }

        dnnUtils.InitHeadPoseEstimationCameraInfo(webCamTextureMat.cols(), webCamTextureMat.rows());

        webCamReady = true;
        LogPrint.Log("OnWebCamTextureToMatHelperInitialized");
    }


    public void OnWebCamTextureToMatHelperDisposed()
    {
        LogPrint.Log("OnWebCamTextureToMatHelperDisposed");

    }

    public void OnWebCamTextureToMatHelperErrorOccurred(OpenCVCompact.WebCamTextureToMatHelper.ErrorCode errorCode)
    {
        LogPrint.Log("OnWebCamTextureToMatHelperErrorOccurred " + errorCode);
    }
}