using System;
using System.Collections;
using UnityEngine;
using UnityEngine.Rendering;

public class TakeScreenShots : MonoBehaviour
{
    static Byte[] _bytes;
    static RenderTexture renderTexture;

    public static IEnumerator FromScreen(string Category)
    {
        //Set Scene camera
        // _handler.Close2DPlan();
        // DASH.HDsetBTNcolor(true);
        // ReturnCameraToInitialPosition();

        //Render
        yield return new WaitForEndOfFrame();
        renderTexture = new RenderTexture(Screen.width, Screen.height, 0);
        ScreenCapture.CaptureScreenshotIntoRenderTexture(renderTexture);
        AsyncGPUReadback.Request(renderTexture, 0, TextureFormat.RGBA32, ReadbackCompleted);
        //yield return _bytes;
         //_bytes;
    }

    static void ReadbackCompleted(AsyncGPUReadbackRequest request)
    {
        // Render texture no longer needed, it has been read back.
        var format = renderTexture.graphicsFormat;
        uint width = (uint)renderTexture.width;
        uint height = (uint)renderTexture.height;
        DestroyImmediate(renderTexture);

        using (var imageBytes = request.GetData<byte>())
        {
            var bytes = ImageConversion.EncodeArrayToPNG(imageBytes.ToArray(), format, width, height);
            string stringifiedPNG = Convert.ToBase64String(bytes);
            //this.Emit("screenShot", stringifiedPNG);
            DASH.HDsetBTNcolor(false);
            _bytes = bytes;
        }
        //return _bytes;
    }
    
}