/**
* @file LFReadCache.cpp
* @brief read local features from file
* @author Erik Rodner
* @date 02/14/2008

*/
#include <iostream>
#include <fstream>

#include "vislearning/baselib/Globals.h"
#include "core/basics/StringTools.h"
#include "core/basics/FileMgt.h"

#include "vislearning/features/localfeatures/LFReadCache.h"

using namespace OBJREC;
using namespace std;
using namespace NICE;

LFReadCache::LFReadCache ( const Config *conf,
                           const LocalFeatureRepresentation *_lfrep,
                           int _numFeatures,
                           const std::string & _section ) : lfrep ( _lfrep )
{
  //srand(time(NULL));
  numFeatures = _numFeatures;
  cachedir = conf->gS ( _section, "root" );
  cachemode = Globals::getCacheMode ( conf->gS ( _section, "mode", "cat" ) );

  std::string descFormat_s = conf->gS ( _section, "descriptor_format", "binary_double" );
  if ( descFormat_s == "binary_double" )
    descFormat = VVector::FILEFORMAT_BINARY_DOUBLE;
  else if ( descFormat_s == "binary_uchar" )
    descFormat = VVector::FILEFORMAT_BINARY_CHAR;
  else if ( descFormat_s == "text_line" )
    descFormat = VVector::FILEFORMAT_LINE;
  else if ( ( descFormat_s == "text_nice" ) || ( descFormat_s == "text_ice" ) )
    descFormat = VVector::FILEFORMAT_NICE;
  else
    fthrow ( Exception, "Format " << descFormat_s << " is unknown." );
}

LFReadCache::~LFReadCache()
{
}

int LFReadCache::getDescSize () const
{
  if ( lfrep == NULL ) {
    fthrow ( Exception, "Unable to get descriptor size! (cache mode)" );
    return -1;
  } else {
    return lfrep->getDescSize();
  }
}


int LFReadCache::extractFeatures ( const NICE::ColorImage & img,
                                   VVector & features,
                                   VVector & positions ) const
{
  return extractFeaturesTemplate<NICE::ColorImage> ( img, features, positions );
}

int LFReadCache::extractFeatures ( const NICE::Image & img,
                                   VVector & features,
                                   VVector & positions ) const
{
  return extractFeaturesTemplate<NICE::Image> ( img, features, positions );
}

void LFReadCache::visualize ( NICE::Image & img,
                              const NICE::Vector & feature ) const
{
  lfrep->visualize ( img, feature );
}

void LFReadCache::visualizeFeatures ( NICE::Image & mark,
                                      const VVector & positions,
                                      size_t color ) const
{
  lfrep->visualizeFeatures ( mark, positions, color );
}