#include "linux/windows/time.h"

#include <sys/time.h>
#include <iomanip>
#include <cstring>
#include <sstream>

errno_t ctime_s(char * buf, size_t size, const time_t *time)
{
  const char * t = asctime(localtime(time));
  strncpy(buf, t, size);
  return 0;
}

DWORD timeGetTime()
{
  struct timeval now;
  gettimeofday(&now, NULL);
  return now.tv_usec / 1000;
}

/// Returns the number of ticks since an undefined time (usually system startup).
DWORD GetTickCount()
{
    struct timespec ts;
    clock_gettime(CLOCK_MONOTONIC, &ts);
    const uint64_t ticks = (uint64_t)(ts.tv_nsec / 1000000) + ((uint64_t)ts.tv_sec * 1000ull);
    return ticks;
}

void GetLocalTime(SYSTEMTIME *t)
{
  timespec ts;
  clock_gettime(CLOCK_REALTIME, &ts);

  time_t tim = ts.tv_sec;

  t->wMilliseconds = ts.tv_nsec / 1000000;

  tm * local = localtime(&tim);

  t->wSecond = local->tm_sec;
  t->wMinute = local->tm_min;
  t->wHour = local->tm_hour;
  t->wDayOfWeek = local->tm_wday;
  t->wDay = local->tm_mday;
  t->wMonth = local->tm_mon + 1;
  t->wYear = local->tm_year;
}

int GetDateFormat(LCID Locale, DWORD dwFlags, CONST SYSTEMTIME *lpDate, LPCSTR lpFormat, LPSTR lpDateStr, int cchDate)
{
  std::time_t t = std::time(nullptr);
  std::tm tm = *std::localtime(&t);
  std::ostringstream ss;
  ss << std::put_time(&tm, "%D");
  const std::string str = ss.str();
  strncpy(lpDateStr, str.c_str(), cchDate);
  return cchDate; // not 100% sure, but it is never used
}

int GetTimeFormat(LCID Locale, DWORD dwFlags, CONST SYSTEMTIME *lpTime, LPCSTR lpFormat, LPSTR lpTimeStr, int cchTime)
{
  std::time_t t = std::time(nullptr);
  std::tm tm = *std::localtime(&t);
  std::ostringstream ss;
  ss << std::put_time(&tm, "%T");
  const std::string str = ss.str();
  strncpy(lpTimeStr, str.c_str(), cchTime);
  return cchTime; // not 100% sure, but it is never used
}