#include "SamplingPreprocessor.h"
#include "ExactPreprocessor.h"
#include "Parser.h"
#include "UnigraphicsParser.h"
#include "X3dParser.h"
#include "Environment.h"
#include "Camera.h"
#include "MeshKdTree.h"
#include "Exporter.h"
#include "X3dExporter.h" // delete later
#include "ViewCell.h"
#include "SceneGraph.h"

#define USE_EXE_PATH false


int
main(int argc, const char **argv)
{
  Debug.open("debug.log");
  environment = new Environment;
  environment->Parse(argc, argv, USE_EXE_PATH);
  MeshKdTree::ParseEnvironment();
  BspTree::ParseEnvironment();

  Preprocessor *p =
    new SamplingPreprocessor();

  char buff[128];
  environment->GetStringValue("Scene.filename", buff);
  string filename(buff);

  p->LoadScene(filename);

  p->BuildKdTree();
  p->KdTreeStatistics(cout);
  
  // parse view cell hierarchy options
  p->ParseViewCellsOptions();

  // construct tree immediately for "from view cells" or "from scene geometry"
  // construction method. For "from rays" construction, wait until there is
  // a certain number of rays collected
  if (p->mViewCellsType == Preprocessor::BSP_VIEW_CELLS &&
	  !(BspTree::sConstructionMethod == BspTree::FROM_RAYS)) 
  {
	  if (BspTree::sConstructionMethod == BspTree::FROM_INPUT_VIEW_CELLS)
	  {
		   // view cells input file name
		  environment->GetStringValue("ViewCells.filename", buff);
		  string vcFilename(buff);

		  if (vcFilename != "")
			  p->LoadViewCells(vcFilename);
		  else
			  p->GenerateViewCells();

		  Debug << "Viewcells loaded / generated. Number of view cells: " << (int)p->mViewCells.size() << endl;
	  }
	
	  p->BuildBspTree();
	
	  p->Export("vc_bsptree.x3d", false, false, true);
	  p->BspTreeStatistics(Debug);

#if 0
	  //-- export the complementary view cells
	  // i.e., the view cells not associated with leafs in the tree.
	  Exporter *exporter = Exporter::GetExporter("viewcells_compl.x3d");

	  ViewCellContainer::iterator vc_compl_it;
	  ViewCellContainer vc_compl(p->mViewCells.size() + X3dExporter::foundViewCells.size());
  
	  sort(p->mViewCells.begin(), p->mViewCells.end());

	  vc_compl_it = set_difference(p->mViewCells.begin(), p->mViewCells.end(), 
		  X3dExporter::foundViewCells.begin(), X3dExporter::foundViewCells.end(), vc_compl.begin());

	  vc_compl.erase(vc_compl_it, vc_compl.end());
  

	  if (exporter) 
	  {	
		  Debug << "Exporting complementary view cells" << endl;
		  exporter->ExportViewCells(vc_compl); // export view cells
		  delete exporter;
	  }
#endif
  }

  //  p->mSceneGraph->Export("soda.x3d");
  if (0) {
    p->Export(filename + "-out.x3d", true, false, false);
    p->Export(filename + "-kdtree.x3d", false, true, false);	
  }
  
   
  if (0) {
    p->ComputeVisibility();
    p->ExportPreprocessedData("scene.vis");
  }

  if (1) {
    Camera camera;
    //camera.LookAtBox(p->mKdTree->GetBox());
		camera.LookInBox(p->mKdTree->GetBox());
		camera.SetPosition(camera.mPosition + Vector3(0,300,0));
    camera.SnapImage("camera.jpg", p->mKdTree);
		
    
    camera.LookInBox(p->mKdTree->GetBox());
    camera.SetPosition(camera.mPosition - Vector3(0,100,0));
    camera.SnapImage("camera2.jpg", p->mKdTree);
  }

  // clean up
  DEL_PTR(p);
  DEL_PTR(environment);

  return 0;
}