/***************************************************
Created by: Venkat on Wed Aug 24 14:33:44 CDT 2005
Modified  :
Purpose   :

****************************************************/
#ifndef EFFTOOL_HPP_
#define EFFTOOL_HPP_


#include "eff_utils/EffExceptions.hpp"
#include "eff_utils/Efficiency.hpp"
#include <string>
#include <vector>

namespace eff_utils {
class EffInfo;

  struct EffDuplicateMatchesToRequest : public EffException {
    EffDuplicateMatchesToRequest() :
      EffException("eff_utils : Ambiguous request - more than one match found in input stream") {;}
  };
  
  class EffTool {
    
  public:
    
    // Constructors
    EffTool() : _isValid(false), _eff(0)  {;}

  // path is a directory location with spc files
  EffTool(const EffInfo& spec, const std::string& path="./") {
    _isValid = _MakeEfficiencyObj(spec, path);
    if( !_isValid ) _eff = 0;
  }

  // Destructor (virtual since we will inherit this class)
  virtual ~EffTool();

  // Query methods
  bool Info(const EffInfo& );

  bool isValid() const { return _isValid; }
  
  const EffInfo& Info() const {
    if( _eff ) 
      return _eff->Info(); 
    else 
      throw EffConfigException("Info: No Efficiency Object Present");
  }
  
  const Efficiency& EffObj() const { 
    if( _eff )
      return *_eff; 
    else
      throw EffConfigException("EffObj: No Efficiency Object Present");
  }
  
protected:
  bool _MakeEfficiencyObj(const EffInfo&, const std::string& path="./");
  
  bool _isValid;
  Efficiency * _eff;
  
private:
  //recursive search for spc files in directory
  void AddFiles2List(const char* path, std::vector<std::string>& files) ;
  };
}
#endif // _EFFTOOL_HPP_