#include "timeline_utils.h"

#include <ngltools/ngltools_dtg.h>
#include <LtsTimeline/ltstimeline_export.h>

#include <QApplication>
#include <QDateTime>


namespace LtsTimeline
{

namespace DateTime
{




int numberOfDateTimeFormats()
{
  return 6;
}

QString toString(qint64 time, Format format)
{
  switch (format)
  {
  case Format::DTG:
    return DTG::toStringMSec(time, DTG::DisplayFormat::Long);
  case Format::ISODate:
    return QDateTime::fromMSecsSinceEpoch(time).toString(Qt::ISODate);
  case Format::Standard:
    return QDateTime::fromMSecsSinceEpoch(time).toString(QStringLiteral("dd.MM.yyyy hh:mm:ss"));
  case Format::DTGShort:
  {
    QDateTime dateTime = QDateTime::fromMSecsSinceEpoch(time).toUTC().addSecs(DTG::timezone2Hours(DTG::timezone()) * 3600);
    return dateTime.toString(QStringLiteral("hhmmss ")) + QStringLiteral("%1").arg(DTG::timezone());
  }
  case Format::DTGVeryShort:
  {
    QDateTime dateTime = QDateTime::fromMSecsSinceEpoch(time).toUTC().addSecs(DTG::timezone2Hours(DTG::timezone()) * 3600);
    return dateTime.toString(QStringLiteral("hhmm"));
  }
  case Format::TimeOnly:
    return QTime::fromMSecsSinceStartOfDay(time).toString();
  }
  return {};
}

} 





namespace Zoom
{

int numberOfZoomFactors()
{
  return 15;
}

Factor LTSTIMELINE_EXPORT increment(Factor factor)
{
  switch (factor)
  {
  case ZoomFactor::FifteenSeconds:
    return ZoomFactor::ThirtySeconds;
  case ZoomFactor::ThirtySeconds:
    return ZoomFactor::SixtySeconds;
  case ZoomFactor::SixtySeconds:
    return ZoomFactor::TwoMinutes;
  case ZoomFactor::TwoMinutes:
    return ZoomFactor::ThreeMinutes;
  case ZoomFactor::ThreeMinutes:
    return ZoomFactor::FiveMinutes;
  case ZoomFactor::FiveMinutes:
    return ZoomFactor::TenMinutes;
  case ZoomFactor::TenMinutes:
    return ZoomFactor::FifteenMinutes;
  case ZoomFactor::FifteenMinutes:
    return ZoomFactor::ThirtyMinutes;
  case ZoomFactor::ThirtyMinutes:
    return ZoomFactor::SixtyMinutes;
  case ZoomFactor::SixtyMinutes:
    return ZoomFactor::TwoHours;
  case ZoomFactor::TwoHours:
    return ZoomFactor::FourHours;
  case ZoomFactor::FourHours:
    return ZoomFactor::EightHours;
  case ZoomFactor::EightHours:
    return ZoomFactor::TwelveHours;
  case ZoomFactor::TwelveHours:
    return ZoomFactor::OneDay;
  case ZoomFactor::OneDay:
    return ZoomFactor::OneDay;
  }
  return factor;
}

Factor LTSTIMELINE_EXPORT decrement(Factor factor)
{
  switch (factor)
  {
  case ZoomFactor::FifteenSeconds:
    return ZoomFactor::FifteenSeconds;
  case ZoomFactor::ThirtySeconds:
    return ZoomFactor::FifteenSeconds;
  case ZoomFactor::SixtySeconds:
    return ZoomFactor::ThirtySeconds;
  case ZoomFactor::TwoMinutes:
    return ZoomFactor::SixtySeconds;
  case ZoomFactor::ThreeMinutes:
    return ZoomFactor::TwoMinutes;
  case ZoomFactor::FiveMinutes:
    return ZoomFactor::ThreeMinutes;
  case ZoomFactor::TenMinutes:
    return ZoomFactor::FiveMinutes;
  case ZoomFactor::FifteenMinutes:
    return ZoomFactor::TenMinutes;
  case ZoomFactor::ThirtyMinutes:
    return ZoomFactor::FifteenMinutes;
  case ZoomFactor::SixtyMinutes:
    return ZoomFactor::ThirtyMinutes;
  case ZoomFactor::TwoHours:
    return ZoomFactor::SixtyMinutes;
  case ZoomFactor::FourHours:
    return ZoomFactor::TwoHours;
  case ZoomFactor::EightHours:
    return ZoomFactor::FourHours;
  case ZoomFactor::TwelveHours:
    return ZoomFactor::EightHours;
  case ZoomFactor::OneDay:
    return ZoomFactor::TwelveHours;
  }
  return factor;
}

Factor ceil(int value)
{
  if (value >= Factor::OneDay)
    return Factor::OneDay;

  Factor ret = Factor::FifteenSeconds;
  while (static_cast<int>(ret) < value)
  {
    ret = increment(ret);
  }
  return ret;
}

Factor floor(int value)
{
  if (value <= Factor::FifteenSeconds)
    return Factor::FifteenSeconds;

  Factor ret = Factor::OneDay;
  while (static_cast<int>(ret) > value)
  {
    ret = decrement(ret);
  }
  return ret;
}

QVector<Factor> availableZoomFactors(Factor min, Factor max)
{
  if (min > max)
    return {};

  ZoomFactors ret;
  ret.reserve(numberOfZoomFactors());
  Factor factor = min;
  do
  {
    ret.append(factor);
    if (factor == max)
      break;
    factor = increment(factor);
  } while (increment(factor) > factor);
  return ret;
}

QString toString(ZoomFactor factor, bool useShort)
{
  switch (factor)
  {
  case ZoomFactor::FifteenSeconds:
    return useShort ? QApplication::tr("15 sec") : QApplication::tr("15 Seconds");
  case ZoomFactor::ThirtySeconds:
    return useShort ? QApplication::tr("30 sec") : QApplication::tr("30 Seconds");
  case ZoomFactor::SixtySeconds:
    return useShort ? QApplication::tr("1 min") : QApplication::tr("1 Minute");
  case ZoomFactor::TwoMinutes:
    return useShort ? QApplication::tr("2 min") : QApplication::tr("2 Minutes");
  case ZoomFactor::ThreeMinutes:
    return useShort ? QApplication::tr("3 min") : QApplication::tr("3 Minutes");
  case ZoomFactor::FiveMinutes:
    return useShort ? QApplication::tr("5 min") : QApplication::tr("5 Minutes");
  case ZoomFactor::TenMinutes:
    return useShort ? QApplication::tr("10 min") : QApplication::tr("10 Minutes");
  case ZoomFactor::FifteenMinutes:
    return useShort ? QApplication::tr("15 min") : QApplication::tr("15 Minutes");
  case ZoomFactor::ThirtyMinutes:
    return useShort ? QApplication::tr("30 min") : QApplication::tr("30 Minutes");
  case ZoomFactor::SixtyMinutes:
    return useShort ? QApplication::tr("1 h") : QApplication::tr("1 Hour");
  case ZoomFactor::TwoHours:
    return useShort ? QApplication::tr("2 h") : QApplication::tr("2 Hours");
  case ZoomFactor::FourHours:
    return useShort ? QApplication::tr("4 h") : QApplication::tr("4 Hours");
  case ZoomFactor::EightHours:
    return useShort ? QApplication::tr("8 h") : QApplication::tr("8 Hours");
  case ZoomFactor::TwelveHours:
    return useShort ? QApplication::tr("12 h") : QApplication::tr("12 Hours");
  case ZoomFactor::OneDay:
    return useShort ? QApplication::tr("1 d") : QApplication::tr("1 Day");
  }
  return useShort ? QApplication::tr("N/A") : QApplication::tr("Unknown");
}

QString toShortString(Factor factor)
{
  return toString(factor, true);
}

int majorInterval(ZoomFactor factor)
{
  switch (factor)
  {
  case ZoomFactor::FifteenSeconds:
    return 3000;
  case ZoomFactor::ThirtySeconds:
    return 5000;
  case ZoomFactor::SixtySeconds:
    return 10000;
  case ZoomFactor::TwoMinutes:
    return 15000;
  case ZoomFactor::ThreeMinutes:
    return 30000;
  case ZoomFactor::FiveMinutes:
    return 60000;
  case ZoomFactor::TenMinutes:
    return 60000;
  case ZoomFactor::FifteenMinutes:
    return 180000;
  case ZoomFactor::ThirtyMinutes:
    return 300000;
  case ZoomFactor::SixtyMinutes:
    return 600000;
  case ZoomFactor::TwoHours:
    return 900000;
  case ZoomFactor::FourHours:
    return 1800000;
  case ZoomFactor::EightHours:
    return 3600000;
  case ZoomFactor::TwelveHours:
    return 5400000;
  case ZoomFactor::OneDay:
    return 7200000;
  }
  return -1;
}

int mediumInterval(ZoomFactor factor)
{
  switch (factor)
  {
  case ZoomFactor::FifteenSeconds:
    return -1;
  case ZoomFactor::ThirtySeconds:
    return -1;
  case ZoomFactor::SixtySeconds:
    return 5000;
  case ZoomFactor::TwoMinutes:
    return 6000;
  case ZoomFactor::ThreeMinutes:
    return 10000;
  case ZoomFactor::FiveMinutes:
    return 15000;
  case ZoomFactor::TenMinutes:
    return 20000;
  case ZoomFactor::FifteenMinutes:
    return 60000;
  case ZoomFactor::ThirtyMinutes:
    return 100000;
  case ZoomFactor::SixtyMinutes:
    return 150000;
  case ZoomFactor::TwoHours:
    return 300000;
  case ZoomFactor::FourHours:
    return 600000;
  case ZoomFactor::EightHours:
    return 900000;
  case ZoomFactor::TwelveHours:
    return 1800000;
  case ZoomFactor::OneDay:
    return 2400000;
  }
  return -1;
}

int minorInterval(ZoomFactor factor)
{
  switch (factor)
  {
  case ZoomFactor::FifteenSeconds:
    return 1000;
  case ZoomFactor::ThirtySeconds:
    return 1000;
  case ZoomFactor::SixtySeconds:
    return 1000;
  case ZoomFactor::TwoMinutes:
    return 3000;
  case ZoomFactor::ThreeMinutes:
    return 5000;
  case ZoomFactor::FiveMinutes:
    return 5000;
  case ZoomFactor::TenMinutes:
    return 10000;
  case ZoomFactor::FifteenMinutes:
    return 20000;
  case ZoomFactor::ThirtyMinutes:
    return 25000;
  case ZoomFactor::SixtyMinutes:
    return 50000;
  case ZoomFactor::TwoHours:
    return 60000;
  case ZoomFactor::FourHours:
    return 150000;
  case ZoomFactor::EightHours:
    return 300000;
  case ZoomFactor::TwelveHours:
    return 600000;
  case ZoomFactor::OneDay:
    return 800000;
  }
  return -1;
}

} 

}