package pl.tirt;

import android.content.Context;
    import android.media.MediaPlayer;
    import android.net.Uri;
    import android.support.v7.app.AppCompatActivity;
    import android.os.Bundle;
    import android.util.Base64;
    import android.view.SurfaceHolder;
    import android.view.SurfaceView;
    import android.view.Window;
    import android.view.WindowManager;

    import java.util.HashMap;
    import java.util.Map;


    public class MainActivity extends AppCompatActivity implements MediaPlayer.OnPreparedListener,SurfaceHolder.Callback {


        //8554
        //stream
    final static String USERNAME = "admin";
    final static String PASSWORD = "camera";
    final static String RTSP_URL = "rtsp://192.168.0.101:8554/stream";

    private MediaPlayer mMediaPlayer;
    private SurfaceHolder holder;
    SurfaceView mSurfaceView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Window window = getWindow();
        window.setFlags(
                WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN
        );
        window.setBackgroundDrawableResource(android.R.color.darker_gray);

        setContentView(R.layout.activity_main);

        SurfaceView surfaceView = (SurfaceView) findViewById(R.id.surfaceView);
        holder = surfaceView.getHolder();
        holder.addCallback(this);
        holder.setFixedSize(320,240);

    }

    @Override
    public void surfaceChanged(
            SurfaceHolder sh, int f, int w, int h) {}

    @Override
    public void surfaceCreated(SurfaceHolder sh) {
        mMediaPlayer = new MediaPlayer();
        mMediaPlayer.setDisplay(holder);

        Context context = getApplicationContext();
        Map<String, String> headers = getRtspHeaders();
        Uri source = Uri.parse(RTSP_URL);

        try {
            // Specify the IP camera's URL and auth headers.
            mMediaPlayer.setDataSource(context, source, headers);

            // Begin the process of setting up a video stream.
            mMediaPlayer.setOnPreparedListener(this);
            mMediaPlayer.prepareAsync();
        }
        catch (Exception e) {}
    }

    @Override
    public void surfaceDestroyed(SurfaceHolder sh) {
        mMediaPlayer.release();
    }

    private Map<String, String> getRtspHeaders() {
        Map<String, String> headers = new HashMap<String, String>();
        String basicAuthValue = getBasicAuthValue(USERNAME, PASSWORD);
        headers.put("Authorization", basicAuthValue);
        return headers;
    }

    private String getBasicAuthValue(String usr, String pwd) {
        String credentials = usr + ":" + pwd;
        int flags = Base64.URL_SAFE | Base64.NO_WRAP;
        byte[] bytes = credentials.getBytes();
        return "Basic " + Base64.encodeToString(bytes, flags);
    }


    @Override
    public void onPrepared(MediaPlayer mp) {
        mMediaPlayer.start();
    }
}