#include <string>
#include <iostream>
#include <iomanip>

#include "JSystem/JDate.hh"

#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"


/**
 * Test program for JDate.
 */
int main(int argc, char **argv)
{
  using namespace std;
  using namespace JPP;

  int     debug;

  try {

    JParser<> zap("Test program for JDate.");

    zap['d'] = make_field(debug)    = 3;

    zap(argc, argv);
  }
  catch(const exception &error) {
    FATAL(error.what() << endl);
  }

  {
    vector<string> buffer = {
      "2020-01-26 20:24:48.123456789Z",  // ROOT TTimeStamp::AsString("c")
      "1000-01-10T10:10:10Z",
      "10000110T101010Z"
    };
    
    for (string word : buffer) {

      DEBUG("Date and time " << word << ' ' << JDateAndTime::isISO8601(word) << endl);

      ASSERT(JDateAndTime::isISO8601(word), "Date and time <" << word << ">");
      ASSERT(JDateAndTime(word).isUTC(),    "Date and time <" << word << ">");
    }
  }
  {
    vector<string> buffer = {
      "1000-01-10T10:10:10+00:00",
      "1000-01-10T10:10:10-00:00",
      "1000-01-10T10:10:10+0000",
      "1000-01-10T10:10:10-0000",
      "1000-01-10T10:10:10+00",
      "1000-01-10T10:10:10-00"
    };
    
    for (string word : buffer) {

      DEBUG("Date and time " << word << ' ' << JDateAndTime::isISO8601(word) << endl);

      ASSERT(JDateAndTime::isISO8601(word), "Date and time <" << word << ">");
      ASSERT(!JDateAndTime(word).isUTC(),   "Date and time <" << word << ">");
    }
  }
  {
    const JDateAndTime t1;
    const JDateAndTime t2(t1.toString());

    DEBUG("t1 " << t1.getTime() << ' ' << t1.toString() << endl);
    DEBUG("t2 " << t2.getTime() << ' ' << t2.toString() << endl);
    {
      double x = t1.getElapsedTime(t2);

      ASSERT(x == 0.0, "elapsed time " << x);
    }
    {
      JDateAndTime t3(t2);

      time_t ts = 100;

      t3.add(ts);

      double x = t1.getElapsedTime(t3);

      ASSERT(x == +ts, "add " << noshowpos << ts << " -> elapsed time " << showpos << x);
    }
    {
      JDateAndTime t3(t2);

      time_t ts = 100;

      t3.sub(ts);

      double x = t1.getElapsedTime(t3);

      ASSERT(x == -ts, "sub " << noshowpos << ts << " -> elapsed time " << showpos << x);
    }
  }

  {
    const JDateAndTime t1(123456789, true);
    const JDateAndTime t2(t1.toString());

    DEBUG("t1 " << t1.getTime() << ' ' << t1.toString() << endl);
    DEBUG("t2 " << t2.getTime() << ' ' << t2.toString() << endl);
    {
      double x = t1.getElapsedTime(t2);

      ASSERT(x == 0.0, "elapsed time " << x);
    }
  }

  return 0;
}