/*
 * Software License Agreement (BSD License)
 *
 *  Point Cloud Library (PCL) - www.pointclouds.org
 *  Copyright (c) 2010-2011, Willow Garage, Inc.
 *
 *  All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above
 *     copyright notice, this list of conditions and the following
 *     disclaimer in the documentation and/or other materials provided
 *     with the distribution.
 *   * Neither the name of Willow Garage, Inc. nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 *  FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 *  COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 *  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 *  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 *  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 *  ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 *  POSSIBILITY OF SUCH DAMAGE.
 *
 *  Author: Francisco, Technical University Eindhoven, (f.j.mysurname.soriano <At > tue.nl)
 */

#pragma once

#include <iostream>
#include <fstream>
#include <cstdio>
#include <Eigen/Core>
#include <Eigen/Geometry>

#include <pcl/pcl_exports.h>
#include <pcl/gpu/containers/device_array.h>
#include <pcl/gpu/containers/kernel_containers.h>
#include <pcl/gpu/kinfu_large_scale/pixel_rgb.h> 

#include <pcl/io/png_io.h>

#include <pcl/common/pcl_filesystem.h>
#include <pcl/console/print.h>


namespace pcl
{
  namespace kinfuLS
  {
      /** \brief Screenshot Manager saves a screenshot with the corresponding camera pose from Kinfu. Please create a folder named "KinFuSnapshots" in the folder where you call kinfu.
        * \author Francisco Heredia
        */
      class PCL_EXPORTS ScreenshotManager
      {
        public:

          using PixelRGB = pcl::gpu::kinfuLS::PixelRGB;

          /** Constructor */
          ScreenshotManager();

          /** \brief Sets Depth camera intrinsics
            * \param[in] focal focal length x 
            * \param height
            * \param width
            */
          void
          setCameraIntrinsics (float focal = 575.816f, float height = 480.0f, float width = 640.0f);

          /**Save Screenshot*/
          void
          saveImage(const Eigen::Affine3f &camPose, pcl::gpu::PtrStepSz<const PixelRGB> rgb24);

        private:

          /**Write camera pose to file*/
          void 
          writePose(const std::string &filename_pose, const Eigen::Vector3f &teVecs, const Eigen::Matrix<float, 3, 3, Eigen::RowMajor> &erreMats) const;

          /**Counter of the number of screenshots taken*/
          int screenshot_counter;
          
          /** \brief Intrinsic parameters of depth camera. */
          float focal_, height_, width_;
    };
  }
}
