#include <iostream>
#include <chrono>
#include <cmath>
#include <iomanip>
#include "StopWatchT.h"

using namespace std;
using namespace std::chrono;

double DoTest(long int iterations);

int main() {
     double result;

     StopWatchT watch;

     watch.Start();
     // you must use this or the -O* option will remove all code
     result = DoTest(200'000'000);
     watch.Stop();
     if (result == 0) {
         cout << "It is 0" << endl;
     }

     cout << "That took " << endl;
     watch.PrintTimes();

     cout << "In Different Units" << endl;

     for(int i =0; i < 6; i++) {
         TimeUnitT unit = static_cast<TimeUnitT>(i);
         cout << "\t"  << watch.TimeInUnit(unit) << " " << TimeUnitTToString(unit) << endl;
     }

     cout << endl << endl << endl;

     watch.Start();
     result += DoTest(100'000'000);
     watch.Stop();
     if (result == 0) {
         cout << "It is 0" << endl;
     }

     cout << "The time is now " <<  endl;
     cout << "\t"  << watch.TimeInUnit(TimeUnitT::SECOND) 
          << " " << TimeUnitTToString(TimeUnitT::SECOND) << endl;

     cout << endl << endl << endl;
     watch.Continue();
     result += DoTest(100'000'000);
     watch.Stop();
     if (result == 0) {
         cout << "It is 0" << endl;
     }

     cout << "The time is now " <<  endl;
     cout << "\t"  << watch.TimeInUnit(TimeUnitT::SECOND) 
          << " " << TimeUnitTToString(TimeUnitT::SECOND) << endl;

     cout << endl << endl;

     for(int i = 0; i < 10; i++) {
         watch.Start();
         result += DoTest(100'000'000);
         watch.Stop();
         if (result == 0) {
             cout << "It is 0" << endl;
         }

         cout << "Iteration " << i 
              << "\t"  << watch.TimeInUnit(TimeUnitT::SECOND) 
              << " " << TimeUnitTToString(TimeUnitT::SECOND) << endl;

     }
     return 0;
}

double DoTest(long int iterations) {
     double d{0}, e{0};
     for(long int i =0; i < iterations; i++) {
         d+= sqrt (static_cast<double>(i)); 
         e+= sqrt (static_cast<double>(i)); 
     }

     return d+e;
}