/*
 * main.cpp
 *
 *  Created on: Dec 4, 2020
 *      Author: hoo2
 */
#include <sstream>
#include <fstream>
#include <iostream>
#include <algorithm>

#define SIZE  20

std::ifstream  file;

/*!
 * Calculates and return the median of an array of measurements
 * \param t    Pointer to measurements
 * \param n    Size of measurements array
 * \return     The average
 */
int median (int *t, int n) {
   std::sort (t, &t[n]);
   return (n % 2) ? t[n/2] : (t[n/2] + t[n/2 -1]) /2;
}

/*
 * A small post processing...
 */
int main(int argc, char* argv[]) {
   file = std::ifstream(argv[1]);
   std::string line, token, exec, mtx, times, dt, units, dyn1, dyn2;
   std::string t1, t2, t3, t4;
   enum state_en {RUNNING, LOAD, DATA, SUM} state = RUNNING;
   int cnt =0, med =0;
   int delta_t[SIZE];

   while (std::getline (file, line, '\n')) {
      std::stringstream ss(line);

      switch (state) {
         case RUNNING:
            ss >> token;
            if (token == "running") {
               ss >> exec >> t1 >> mtx >> t2 >> times >> t3 >> t4 >> dyn1 >> dyn2;
               cnt =0;
               state = LOAD;
            }
            break;

         case LOAD:  state = DATA; break;

         case DATA:
            ss >> t1 >> t2 >> t3 >> dt >> units;
            if      (units == "[usec]")  delta_t[cnt] = std::atoi(dt.c_str());
            else if (units == "[msec]")  delta_t[cnt] = std::atoi(dt.c_str()) * 1000;
            else if (units == "[sec]")   delta_t[cnt] = std::atoi(dt.c_str()) * 1000000;
            if (++cnt == std::atoi(times.c_str())) {
               med = median (delta_t, cnt);
               cnt =0;
               state = SUM;
            }
            break;

         case SUM:
            ss >> token;
            if (token == "running") {
               std::cout << exec << ',' << mtx << ',' << med << ",   ," <<
                     (((dyn1 == "--dynamic") || (dyn2 == "--dynamic")) ? "dyn\n" : " \n");
               dyn1 = "";
               dyn2 = "";
               ss >> exec >> t1 >> mtx >> t2 >> times >> t3 >> t4 >> dyn1 >> dyn2;
               cnt =0;
               state = LOAD;
            }
            else if (token == "[Timing]:") {
               ss >> t1 >> t2 >> dt >> units;
               if      (units == "[usec]")  med += std::atoi(dt.c_str());
               else if (units == "[msec]")  med += std::atoi(dt.c_str()) * 1000;
               else if (units == "[sec]")   med += std::atoi(dt.c_str()) * 1000000;
               state = RUNNING;
               std::cout << exec << ',' << mtx << ',' << med << ",sum," <<
                     (((dyn1 == "--dynamic") || (dyn2 == "--dynamic")) ? "dyn\n" : " \n");
               dyn1 = "";
               dyn2 = "";
            }
            break;
      }

   }

   return 0;
}