#pragma once

#include <QStringList>
#include "ngltools_export.h"

class QDateTime;


namespace DTG
{



enum DateTimeType
{
  DTG               = 1,    
  DDMMYYYY_HHMMSS_Z = 2,    
  DDMMYYYY_Z_HHMMSS = 4     
};




enum DisplayFormat      
{
  Short,                
  Long,                 
  TurboLong,
  Default               
};

enum DTGValidation
{
  Invalid,
  Intermediate,
  Acceptable
};



NGLTOOLS_EXPORT void setDateTimeType(DateTimeType dtType);


NGLTOOLS_EXPORT DateTimeType dateTimeType();



NGLTOOLS_EXPORT void setDefaultDisplayFormat(DisplayFormat dtFormat);


NGLTOOLS_EXPORT DisplayFormat defaultDisplayFormat();



NGLTOOLS_EXPORT QString toString(const QDateTime &dt, DisplayFormat format = Default, DateTimeType = dateTimeType());


NGLTOOLS_EXPORT QString toStringMSec(qint64 msecSinceEpoch, DisplayFormat format = Default);



NGLTOOLS_EXPORT QDateTime fromDTGString(const QString &str, bool *bOk = nullptr);


NGLTOOLS_EXPORT DTGValidation validateString(const QString &str, QDateTime &dt);



NGLTOOLS_EXPORT bool setTimezone(char tz, bool bUserDefinedZone);


NGLTOOLS_EXPORT char timezone();
NGLTOOLS_EXPORT char timezoneUserDefined();
NGLTOOLS_EXPORT char timezoneExerciseDefault();

NGLTOOLS_EXPORT bool isTimezoneValid(char tz);


NGLTOOLS_EXPORT int timezone2Hours(char tz, bool *bOk = nullptr);


NGLTOOLS_EXPORT int timezone2Secs(char tz, bool *bOk = nullptr);


NGLTOOLS_EXPORT QStringList months();

}