#include "SamplingPreprocessor.h"
#include "VssPreprocessor.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();
  VspKdTree::ParseEnvironment();

  char buff[128];
  
  environment->GetStringValue("Preprocessor.type", buff);
  string preprocessorType(buff);
	
  Preprocessor *p;

	if (preprocessorType == "vss")
		p = new VssPreprocessor();
	else
		if (preprocessorType == "exact")
			p = new ExactPreprocessor();
		else
			if (preprocessorType == "sampling")
				p = new SamplingPreprocessor();
			else {
				cerr<<"Unknown preprocessor type"<<endl;
				Debug<<"Unknown preprocessor type"<<endl;
				exit(1);
			}
	

  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 (ViewCell::sHierarchy == ViewCell::BSP &&
	  !(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);
		  p->LoadViewCells(vcFilename);
		  Debug << (int)p->mViewCells.size() << " view cells loaded" << endl;
	  }
	
	  p->BuildBspTree();
	
	  p->Export("vc_bsptree.x3d", false, false, true);
	  p->BspTreeStatistics(Debug);
  }

  //  p->mSceneGraph->Export("soda.x3d");
  if (0) {
    p->Export(filename + "-out.x3d", true, false, false);
    p->Export(filename + "-kdtree.x3d", false, true, false);	
  }
  
   
  if (1) {
    p->ComputeVisibility();
    p->ExportPreprocessedData("scene.vis");
  }

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

	if (0) {
    camera.SetPosition( p->mKdTree->GetBox().Center() - Vector3(0,-100,0) );
		camera.SetDirection(Vector3(1, 0, 0));
		camera.SnapImage("camera3.jpg", p->mKdTree);
  }

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

  return 0;
}