#include "SamplingPreprocessor.h"
#include "VssPreprocessor.h"
#include "RssPreprocessor.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"
#include "PreprocessorThread.h"

#include <QApplication>
#include <QtOpenGL>
#include "GlRenderer.h"

#define USE_EXE_PATH false





int
main(int argc, char **argv)
{
  Debug.open("debug.log");
  environment = new Environment;
  environment->Parse(argc, argv, USE_EXE_PATH);
  MeshKdTree::ParseEnvironment();
  
  char buff[128];
  environment->GetStringValue("Preprocessor.type", buff);
  string preprocessorType(buff);
	
  Preprocessor *p;

  if (preprocessorType == "vss")
	p = new VssPreprocessor();
  else
	if (preprocessorType == "rss")
	  p = new RssPreprocessor();
	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);
		}

  QApplication *app = NULL;
  
  if (p->mUseGlRenderer) {
	// create a qt application first (must be created before any opengl widget...
	app = new QApplication(argc, argv);
	
	if (!QGLFormat::hasOpenGL() || !QGLPixelBuffer::hasOpenGLPbuffers()) {
	  QMessageBox::information(0, "OpenGL pbuffers", 
							   "This system does not support OpenGL/pbuffers.",
							   QMessageBox::Ok);
	  return -1;
	}
  }
  
  preprocessor = p;
  
  environment->GetStringValue("Scene.filename", buff);
  string filename(buff);
  p->LoadScene(filename);
  
  p->BuildKdTree();
  p->KdTreeStatistics(cout);
  
  // parse view cells related options
  p->PrepareViewCells();
  

  // create a preprocessor thread
  PreprocessorThread *pt = new PreprocessorThread(p);

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

  if (p->mUseGlRenderer) {
	
	rendererWidget = new GlRendererWidget(p->mSceneGraph, p->mViewCellsManager);
	//  renderer->resize(640, 480);
	rendererWidget->resize(640, 480);
	rendererWidget->show();

	pt->start(QThread::LowPriority);
	
  } else {
	// just call the mail method -> will be executed in the main thread
	pt->Main();
  }
  
  // clean up
  //  DEL_PTR(p);
  //  DEL_PTR(environment);
  if (app)
	return app->exec();

  return 0;
}