source: trunk/src/statistics.cpp @ 206

/***************************************************************************
 *   Copyright (C) 2006-2009 by Guy Rutenberg   *
 *   guyrutenberg@gmail.com   *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

#include <string>
#include <sstream>
#include <cstdlib>
#include <boost/foreach.hpp>
#include <boost/algorithm/string/split.hpp>
#include <boost/algorithm/string/classification.hpp>
#include "statistics.h"
#include "utility.h"

using namespace std;
using namespace statistics;
using namespace boost;

Statistics::Statistics(configuration::Configuration *backend)
{
        this->backend = backend;
        try {
                load_data();
        } catch (std::exception &e) {
                reset();
        }
}

void Statistics::load_data() 
{
        string tmp;
        vector<string> tmp_vec;
        
        tmp = backend->get("statistics_games_started");
        _games_started = atoi(tmp.c_str());

        tmp = backend->get("statistics_games_finished");
        _games_finished = atoi(tmp.c_str());

        tmp = backend->get("statistics_score_distribution");
        split(tmp_vec, tmp, is_any_of(","));
        if (tmp_vec.size() != score_distributions_slots)
                throw BadConfiguration();

        BOOST_FOREACH(string i, tmp_vec) {
                _score_distribution.push_back(atoi(i.c_str()));
        }

        istringstream i( backend->get("statistics_last_reset"));
        i >> _last_reset;
        if (!_last_reset)
                throw BadConfiguration();
                
}

void Statistics::game_started()
{       
        _games_started++;
        save();
}

void Statistics::game_finished(int score)
{       
        int score_slot;
        _games_finished++;

        score_slot = score/score_distribution_granuality;
        score_slot = score_slot<score_distributions_slots ? score_slot : score_slot;
        _score_distribution[score_slot]++;
        save();
}

void Statistics::save() {
        string tmp;
        backend->set("statistics_games_started", stringify(_games_started));
        backend->set("statistics_games_finished", stringify(_games_finished));
        backend->set("statistics_last_reset", stringify(_last_reset));

        tmp = "";
        BOOST_FOREACH(int i, _score_distribution) {
                tmp += stringify(i) + ",";
        }
        //delete trailing comma
        tmp = tmp.substr(0, tmp.size()-1);
        backend->set("statistics_score_distribution", tmp);

        backend->save();
}

void Statistics::reset() {
        _games_started = 0;
        _games_finished = 0;
        _last_reset = time(NULL);

        _score_distribution = vector<int>(score_distributions_slots, 0);
        
        save();
}