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using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.IO;
using UnityEngine.UI;



public class ScreenShot : MonoBehaviour
{
    
    // This camera is used for screen capture , Camera's Claer Flags  The attribute of is selected as Depth Only 
    public Camera CameraTrans;
    private Texture2D mTexture1;
    private string mPath;
    public GameObject picture;
    private string mingming;


    // Use this for initialization
    void Start()
    {
    
        CameraTrans = GameObject.FindGameObjectWithTag("ARCamera").GetComponent<Camera>();ji
    }

    // Update is called once per frame
    void Update()
    {
    

    }
    /// <summary>
    ///  Turn on the camera 
    /// </summary>

    public void screenshot()
    {
    
        // Name with time 
        string mingming = System.DateTime.Now.Year.ToString() + System.DateTime.Now.Month.ToString() + System.DateTime.Now.Day + System.DateTime.Now.Hour + System.DateTime.Now.Minute + System.DateTime.Now.Second;
        // Platform judgment 
        if (Application.platform == RuntimePlatform.Android)
        {
    
         
            // Photo album path of Android device 
            mPath = "/sdcard/DCIM/Camera/" + mingming + ".jpg";
            Debug.Log(mPath);

        }
        else if (Application.platform == RuntimePlatform.WindowsEditor)
        {
    
            mPath = Application.dataPath + "\\Resources\\" + mingming + ".jpg";
            Debug.Log(mPath);
        }
        StartCoroutine(CaptureByCamera(CameraTrans, new Rect(0, 0, 1024, 768), mPath));

    }
    private IEnumerator CaptureByCamera(Camera mCamera, Rect mRect, string mFileName)
    {
    
        // Wait for the rendering thread to end  
        yield return new WaitForEndOfFrame();

        // initialization RenderTexture 
        RenderTexture mRender = new RenderTexture((int)mRect.width, (int)mRect.height, 0);
        // Set the render target of the camera  
        mCamera.targetTexture = mRender;
        // Start rendering  
        mCamera.Render();

        // Activate render map to read information  
        RenderTexture.active = mRender;

        Texture2D mTexture = new Texture2D((int)mRect.width, (int)mRect.height, TextureFormat.RGB24, false);
        // The screen pixel information is read and stored as texture data  
        mTexture.ReadPixels(mRect, 0, 0);
        // application  
        mTexture.Apply();

        // Release the camera , Destroy render maps  
        mCamera.targetTexture = null;
        RenderTexture.active = null;
        GameObject.Destroy(mRender);

        // Encode the picture information into byte information  
        byte[] bytes = mTexture.EncodeToPNG();

        // preservation  
        File.WriteAllBytes(mFileName, bytes);
        // Store the texture map in the static class 
        mTexture1 = mTexture;
      // picture.GetComponent<Image>().sprite = Sprite.Create(mTexture1, new Rect(0, 0, 1024, 768), new Vector2(Screen.height / 2, Screen.width / 2));
        // If necessary, you can return to the screenshot  
        //return mTexture; 

    }


    // Start is called before the first frame update


    public void OnScreenShotClick()
    {
    
        //if (picture == null) return;
        Debug.Log(" Screenshot ");
        screenshot();
       
      
    }
    public void ScreenShotBtn()
    {
    
        //StartCoroutine(CaptureByRect());
     
    }





  
}