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// G4TrialsCounter
//
// Class description:
//
// Keeps statistics of the number of trials, including the Maximum
// and how many times it was reached.

// Author: John Apostolakis (CERN), 08.12.2006   
// -------------------------------------------------------------------
#ifndef G4TRIALS_COUNTER_HH
#define G4TRIALS_COUNTER_HH

#include "G4Types.hh"
#include "G4String.hh"

/**
 * @brief G4TrialsCounter is a class to keep statistics of the number of
 * trials, including the maximum and how many times it was reached.
 */

class G4TrialsCounter
{
  public:

    /**
     * Constructor for G4TrialsCounter.
     *  @param[in] nameStats Identifier.
     *  @param[in] description Description text.
     *  @param[in] printOnExit Flag for enabling additional verbosity on exit.
     */
    G4TrialsCounter( const G4String& nameStats,
                     const G4String& description,
                     G4bool printOnExit = false ); 

    /**
     * Destructor.
     */
    ~G4TrialsCounter();

    /**
     * Adds this number to stats.
     */
    inline void AccumulateCounts( G4int noTrials ); 

    /**
     * Resets all counts.
     */
    void ClearCounts(); 

    /**
     * Returns number of count/trials, calls, max & no-max.
     */
    G4int ReturnTotals( G4int& calls, G4int& maxTrials, G4int& numMaxT ) ; 

    /**
     * Prints out statistics.
     */
    void PrintStatistics(); 

  private:

    /** Counts sum of trials. */
    G4int fTotalNoTrials = 0;

    /** Total number of calls to accumulate. */
    G4int fNumberCalls = 0;

    /** Max value of trials. */
    G4int fmaxTrials = 0;

    /** How many times maximum is reached. */
    G4int fNoTimesMaxTrials = 0;

    /** Identifies stats, and is printed. */
    G4String fName;

    /** Explanation of stats. */
    G4String fDescription;

    /** If verbose and not printed, print on destruction. */
    G4bool fStatsVerbose = false;

    /** Flag, to avoid reprinting on destruction. */
    G4bool fPrinted = false;
}; 

#include "G4TrialsCounter.icc"

#endif