#include <string>
#include <cstdio>
#include <vector>

#include "TTimeStamp.h"

void test() {
   time_t ut = -295372800; // from GNU date 8.32: Mon 22 Aug 08:00:00 UTC 1960
   TTimeStamp tts(ut, 0);
   std::printf("Original time_t = %+10ld; TTimeStamp = %s\n",
      ut, tts.AsString("s"));

   unsigned d = tts.GetDate();
   unsigned H, M, S;
   tts.GetTime(true, 0, &H, &M, &S);
   std::printf("Values extracted from TTimeStamp: date = %u; H = %u, M = %u, S = %u\n",
      d, H, M, S);

   ut -= H*3600 + M*60 + S;
   std::printf("Shifted time_t to start of day = %+10ld; TTimeStamp = %s\n",
      ut, TTimeStamp(ut, 0).AsString("s"));

   TTimeStamp tt1(d, 0u, 0u, true, 0);
   std::printf("TTimeStamp(%u, 0u, 0u, true, 0) = %s, time_t = %+10ld\n",
      d, tt1.AsString("s"), (time_t)tt1);

   TTimeStamp tt2(1960, 8, 22, 0, 0, 0);
   std::printf("TTimeStamp(1960, 8, 22, 0, 0, 0) = %s, time_t = %+10ld\n",
      tt2.AsString("s"), (time_t)tt2);

   std::printf("\n");
   const std::vector<int> days = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
   ut = -410227200; // from GNU date 8.32: Mon  1 Jan 00:00:00 UTC 1957
   for (int year = 1957; year <= 1958; ++year) {
      for (int month = 1; month <= 12; ++month) {
         int add_day = month == 2 && TTimeStamp::IsLeapYear(year);
         for (int day = 1; day <= days[month-1] + add_day; ++day, ut += 86400) {
            TTimeStamp tt3(year, month, day, 0, 0, 0);
            std::string date3 = tt3.AsString("s");
            date3.erase(10);

            TTimeStamp tt4(ut, 0);
            std::string date4 = tt4.AsString("s");
            date4.erase(10);

            std::printf("In:%d-%02d-%02d Out:%s %+10ld; In:%+10ld Out:%+10ld %s\n",
               year, month, day, date3.c_str(), (time_t)tt3,
               ut, (time_t)tt4, date4.c_str());
         }
      }
   }
}