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//
// $Id$

#ifndef G4ATTCHECK_HH
#define G4ATTCHECK_HH

// Class Description:
//
// @class G4AttCheck
//
// @brief Checks G4AttValue's and their corresponding G4AttDef map.
//
// Usage (a): G4AttCheck(values,definitions);
//    or (b): G4cout << G4AttCheck(values,definitions) << G4endl;
//
// For further details, see the HepRep home page at http://heprep.freehep.org
//  
// @author J.Allison
// @author J.Perl
// Class Description - End:

#include "globals.hh"

#include <set>
#include <vector>
#include <map>
#include <iostream>

class G4AttValue;
class G4AttDef;

class G4AttCheck {

public: // With description

  G4AttCheck
  (const std::vector<G4AttValue>* values,
   const std::map<G4String,G4AttDef>* definitions);

  ~G4AttCheck();

  const std::vector<G4AttValue>* GetAttValues() const {
    return fpValues;
  }

  const std::map<G4String,G4AttDef>* GetAttDefs() const {
    return fpDefinitions;
  }

  G4bool Check(const G4String& leader = "") const;
  // Check only.  Silent unless error - then G4cerr.  Returns error.
  // Provide leader, e.g., name of calling function.

  G4bool Standard
  (std::vector<G4AttValue>* standardValues,
   std::map<G4String,G4AttDef>* standardDefinitions)
    const;
  // Places standard versions in provided containers and returns error.

  friend std::ostream& operator<< (std::ostream&, const G4AttCheck&);

private:

  void AddValuesAndDefs
  (std::vector<G4AttValue>* newValues,
   std::map<G4String,G4AttDef>* newDefinitions,
   const G4String& oldName,
   const G4String& name,
   const G4String& value,
   const G4String& extra,
   const G4String& description = "") const;   // Utility function for Standard.

  const std::vector<G4AttValue>* fpValues;
  const std::map<G4String,G4AttDef>* fpDefinitions;

  static G4bool fFirst;  // Flag for initialising the following containers.
  static std::set<G4String> fUnitCategories;  // Set of legal unit categories.
  static std::map<G4String,G4String> fStandardUnits;  // Standard units.
  static std::set<G4String> fCategories;      // Set of legal categories.
  static std::set<G4String> fUnits;           // Set of legal units.
  static std::set<G4String> fValueTypes;      // Set of legal value types.
};

#endif //G4ATTCHECK_HH