//=====================================================
// File   :  mean.cxx
// Author :  L. Plagne <laurent.plagne@edf.fr)>
// Copyright (C) EDF R&D,  lun sep 30 14:23:15 CEST 2002
//=====================================================
//
// 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 "utilities.h"
#include <vector>
#include <string>
#include <iostream>
#include <fstream>
#include "bench_parameter.hh"
#include "utils/xy_file.hh"
#include <set>

using namespace std;

double mean_calc(const vector<int> &tab_sizes, const vector<double> &tab_mflops, const int size_min,
                 const int size_max);

class Lib_Mean {
 public:
  Lib_Mean(void) : _lib_name(), _mean_in_cache(), _mean_out_of_cache() {
    MESSAGE("Lib_mean Default Ctor");
    MESSAGE("!!! should not be used");
    exit(0);
  }
  Lib_Mean(const string &name, const double &mic, const double &moc)
      : _lib_name(name), _mean_in_cache(mic), _mean_out_of_cache(moc) {
    MESSAGE("Lib_mean Ctor");
  }
  Lib_Mean(const Lib_Mean &lm)
      : _lib_name(lm._lib_name), _mean_in_cache(lm._mean_in_cache), _mean_out_of_cache(lm._mean_out_of_cache) {
    MESSAGE("Lib_mean Copy Ctor");
  }
  ~Lib_Mean(void) { MESSAGE("Lib_mean Dtor"); }

  double _mean_in_cache;
  double _mean_out_of_cache;
  string _lib_name;

  bool operator<(const Lib_Mean &right) const {
    // return ( this->_mean_out_of_cache > right._mean_out_of_cache) ;
    return (this->_mean_in_cache > right._mean_in_cache);
  }
};

int main(int argc, char *argv[]) {
  if (argc < 6) {
    INFOS("!!! Error ... usage : main what mic Mic moc Moc filename1 finename2...");
    exit(0);
  }
  INFOS(argc);

  int min_in_cache = atoi(argv[2]);
  int max_in_cache = atoi(argv[3]);
  int min_out_of_cache = atoi(argv[4]);
  int max_out_of_cache = atoi(argv[5]);

  multiset<Lib_Mean> s_lib_mean;

  for (int i = 6; i < argc; i++) {
    string filename = argv[i];

    INFOS(filename);

    double mic = 0;
    double moc = 0;

    {
      vector<int> tab_sizes;
      vector<double> tab_mflops;

      read_xy_file(filename, tab_sizes, tab_mflops);

      mic = mean_calc(tab_sizes, tab_mflops, min_in_cache, max_in_cache);
      moc = mean_calc(tab_sizes, tab_mflops, min_out_of_cache, max_out_of_cache);

      Lib_Mean cur_lib_mean(filename, mic, moc);

      s_lib_mean.insert(cur_lib_mean);
    }
  }

  cout << "<TABLE BORDER CELLPADDING=2>" << endl;
  cout << "  <TR>" << endl;
  cout << "    <TH ALIGN=CENTER> " << argv[1] << " </TH>" << endl;
  cout << "    <TH ALIGN=CENTER> <a href="
          "#mean_marker"
          "> in cache <BR> mean perf <BR> Mflops </a></TH>"
       << endl;
  cout << "    <TH ALIGN=CENTER> in cache <BR> % best </TH>" << endl;
  cout << "    <TH ALIGN=CENTER> <a href="
          "#mean_marker"
          "> out of cache <BR> mean perf <BR> Mflops </a></TH>"
       << endl;
  cout << "    <TH ALIGN=CENTER> out of cache <BR> % best </TH>" << endl;
  cout << "    <TH ALIGN=CENTER> details </TH>" << endl;
  cout << "    <TH ALIGN=CENTER> comments </TH>" << endl;
  cout << "  </TR>" << endl;

  multiset<Lib_Mean>::iterator is = s_lib_mean.begin();
  Lib_Mean best(*is);

  for (is = s_lib_mean.begin(); is != s_lib_mean.end(); is++) {
    cout << "  <TR>" << endl;
    cout << "     <TD> " << is->_lib_name << " </TD>" << endl;
    cout << "     <TD> " << is->_mean_in_cache << " </TD>" << endl;
    cout << "     <TD> " << 100 * (is->_mean_in_cache / best._mean_in_cache) << " </TD>" << endl;
    cout << "     <TD> " << is->_mean_out_of_cache << " </TD>" << endl;
    cout << "     <TD> " << 100 * (is->_mean_out_of_cache / best._mean_out_of_cache) << " </TD>" << endl;
    cout << "     <TD> "
         << "<a href=\"#" << is->_lib_name << "_" << argv[1]
         << "\">snippet</a>/"
            "<a href=\"#"
         << is->_lib_name << "_flags\">flags</a>  </TD>" << endl;
    cout << "     <TD> "
         << "<a href=\"#" << is->_lib_name << "_comments\">click here</a>  </TD>" << endl;
    cout << "  </TR>" << endl;
  }

  cout << "</TABLE>" << endl;

  ofstream output_file("../order_lib", ios::out);

  for (is = s_lib_mean.begin(); is != s_lib_mean.end(); is++) {
    output_file << is->_lib_name << endl;
  }

  output_file.close();
}

double mean_calc(const vector<int> &tab_sizes, const vector<double> &tab_mflops, const int size_min,
                 const int size_max) {
  int size = tab_sizes.size();
  int nb_sample = 0;
  double mean = 0.0;

  for (int i = 0; i < size; i++) {
    if ((tab_sizes[i] >= size_min) && (tab_sizes[i] <= size_max)) {
      nb_sample++;
      mean += tab_mflops[i];
    }
  }

  if (nb_sample == 0) {
    INFOS("no data for mean calculation");
    return 0.0;
  }

  return mean / nb_sample;
}