// (C) Copyright Gert-Jan de Vos and Jan Wilmans 2013.

// Distributed under the Boost Software License, Version 1.0.

// (See accompanying file LICENSE_1_0.txt or copy at

// http://www.boost.org/LICENSE_1_0.txt)

#include <sstream>

#include <iomanip>

#include "Win32/Utilities.h"

#include "Win32/Win32Lib.h"

#include "CobaltFusion/stringbuilder.h"

#include "DebugViewppLib/Conversions.h"

namespace fusion {

namespace debugviewpp {

std::string GetTimeText(double time)

{

return stringbuilder() << std::fixed << std::setprecision(6) << time;

}

std::string GetDateText(const SYSTEMTIME& st)

{

int size = GetDateFormatA(LOCALE_USER_DEFAULT, 0, &st, nullptr, nullptr, 0);

std::vector<char> buf(size);

GetDateFormatA(LOCALE_USER_DEFAULT, 0, &st, nullptr, buf.data(), size);

return std::string(buf.data(), size - 1);

}

std::string GetDateText(const FILETIME& ft)

{

return GetDateText(Win32::FileTimeToSystemTime(Win32::FileTimeToLocalFileTime(ft)));

}

std::string GetTimeText(const SYSTEMTIME& st)

{

char buf[32];

sprintf_s(buf, "%02d:%02d:%02d.%03d", st.wHour, st.wMinute, st.wSecond, st.wMilliseconds);

return buf;

}

std::string GetDateTimeText(const FILETIME& filetime)

{

// convert the FILETIME from UTC to local timezone so the time so written as 'clocktime'

auto st = Win32::FileTimeToSystemTime(Win32::FileTimeToLocalFileTime(filetime));

char buf[64];

sprintf_s(buf, "%04d/%02d/%02d %02d:%02d:%02d.%03d", st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond, st.wMilliseconds);

return buf;

}

std::string GetTimeText(const FILETIME& ft)

{

if (ft.dwHighDateTime == 0 && ft.dwLowDateTime == 0)

{

return "0"; // prevent endlessly repeating exception messageboxes when reading a corrupted file

}

return GetTimeText(Win32::FileTimeToSystemTime(Win32::FileTimeToLocalFileTime(ft)));

}

SYSTEMTIME GetSystemTime(WORD year, WORD month, WORD day)

{

SYSTEMTIME st = {};

st.wYear = year;

st.wMonth = month;

st.wDay = day;

return st;

}

USTimeConverter::USTimeConverter() :

m_lastFileTime(),

m_firstValue(true)

{

}

FILETIME USTimeConverter::USTimeToFiletime(WORD h, WORD m, WORD s, WORD /*ms*/)

{

if (m_firstValue)

{

m_firstValue = false;

auto st = GetSystemTime(2000, 1, 1);

st.wHour = h;

st.wMinute = m;

st.wSecond = s;

st.wMilliseconds = 0; // todo: why is 'ms' not used?

m_lastFileTime = Win32::SystemTimeToFileTime(st);

}

auto st = Win32::FileTimeToSystemTime(m_lastFileTime);

st.wHour = h;

st.wMinute = m;

st.wSecond = s;

st.wMilliseconds = 0;

auto ft = Win32::SystemTimeToFileTime(st);

if (ft < m_lastFileTime) // is ft before m_lastFileTime, then assume it is on the next day.

{

st.wDay += 1;

}

m_lastFileTime = Win32::SystemTimeToFileTime(st);

return Win32::LocalFileTimeToFileTime(ft); // convert to UTC

}

// read localtime in format "hh:mm:ss tt" (AM/PM postfix)

bool USTimeConverter::ReadLocalTimeUSRegion(const std::string& text, FILETIME& ft)

{

std::istringstream is(text);

WORD h = 0;

WORD m = 0;

WORD s = 0;

char c1 = 0;

char c2 = 0;

char p1 = 0;

char p2 = 0;

is >> h >> c1 >> m >> c2 >> s;

if (!(is && c1 == ':' && c2 == ':'))

{

return false;

}

if (h == 12)

{

h = 0;

}

is >> p1 >> p2;

if (is && p1 == 'P' && p2 == 'M')

{

h += 12;

}

ft = USTimeToFiletime(h, m, s, 0);

return true;

}

// read localtime in format "hh:mm:ss.ms tt" (AM/PM postfix)

bool USTimeConverter::ReadLocalTimeUSRegionMs(const std::string& text, FILETIME& ft)

{

std::istringstream is(text);

WORD h = 0;

WORD m = 0;

WORD s = 0;

WORD ms = 0;

char c1 = 0;

char c2 = 0;

char p1 = 0;

char p2 = 0;

char d1 = 0;

is >> h >> c1 >> m >> c2 >> s >> d1 >> ms;

if (!(is && c1 == ':' && c2 == ':' && d1 == '.'))

{

return false;

}

if (h == 12)

{

h = 0;

}

is >> p1 >> p2;

if (is && p1 == 'P' && p2 == 'M')

{

h += 12;

}

ft = USTimeToFiletime(h, m, s, ms);

return true;

}

} // namespace debugviewpp

} // namespace fusion