OCCT

// Copyright (c) 2019 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.

#ifdef _WIN32
  #include <windows.h>
#endif

#include <Message_PrinterSystemLog.hxx>

#include <TCollection_ExtendedString.hxx>

#if defined(OCCT_UWP)
//
#elif defined(_WIN32)
//! Convert message gravity into EventLog enumeration.
static WORD getEventLogPriority(const Message_Gravity theGravity)
{
  switch (theGravity)
  {
    case Message_Alarm:
    case Message_Fail:
      return EVENTLOG_ERROR_TYPE;
    case Message_Warning:
      return EVENTLOG_WARNING_TYPE;
    case Message_Info:
    case Message_Trace:
      return EVENTLOG_INFORMATION_TYPE;
  }
  return EVENTLOG_INFORMATION_TYPE;
}
#elif defined(__ANDROID__)
  #include <android/log.h>

//! Convert message gravity into Android log enumeration.
static android_LogPriority getAndroidLogPriority(const Message_Gravity theGravity)
{
  switch (theGravity)
  {
    case Message_Trace:
      return ANDROID_LOG_DEBUG;
    case Message_Info:
      return ANDROID_LOG_INFO;
    case Message_Warning:
      return ANDROID_LOG_WARN;
    case Message_Alarm:
      return ANDROID_LOG_ERROR;
    case Message_Fail:
      return ANDROID_LOG_ERROR;
  }
  return ANDROID_LOG_DEBUG;
}
#elif defined(__EMSCRIPTEN__)
  #include <emscripten/emscripten.h>

//! Print message to console.debug().
EM_JS(void, occJSConsoleDebug, (const char* theStr), {
  const aStr = Number(theStr); // bigintToI53Checked(theStr);
  console.debug(UTF8ToString(aStr));
});

//! Print message to console.info().
EM_JS(void, occJSConsoleInfo, (const char* theStr), {
  const aStr = Number(theStr); // bigintToI53Checked(theStr);
  console.info(UTF8ToString(aStr));
});

//! Print message to console.warn().
EM_JS(void, occJSConsoleWarn, (const char* theStr), {
  const aStr = Number(theStr); // bigintToI53Checked(theStr);
  console.warn(UTF8ToString(aStr));
});

//! Print message to console.error().
EM_JS(void, occJSConsoleError, (const char* theStr), {
  const aStr = Number(theStr); // bigintToI53Checked(theStr);
  console.error(UTF8ToString(aStr));
});
#else
  #include <syslog.h>

//! Convert message gravity into syslog() enumeration.
static int getSysLogPriority(const Message_Gravity theGravity)
{
  switch (theGravity)
  {
    case Message_Trace:
      return LOG_DEBUG;
    case Message_Info:
      return LOG_INFO;
    case Message_Warning:
      return LOG_WARNING;
    case Message_Alarm:
      return LOG_ERR;
    case Message_Fail:
      return LOG_ERR;
  }
  return LOG_DEBUG;
}
#endif

IMPLEMENT_STANDARD_RTTIEXT(Message_PrinterSystemLog, Message_Printer)

//=================================================================================================

Message_PrinterSystemLog::Message_PrinterSystemLog(
  const TCollection_AsciiString& theEventSourceName,
  const Message_Gravity          theTraceLevel)
    : myEventSourceName(theEventSourceName)
{
  myTraceLevel = theTraceLevel;
#if defined(OCCT_UWP)
  myEventSource = NULL;
#elif defined(_WIN32)
  const TCollection_ExtendedString aWideSrcName(theEventSourceName);
  myEventSource = (void*)RegisterEventSourceW(NULL, aWideSrcName.ToWideString());
#elif defined(__ANDROID__)
  //
#elif defined(__EMSCRIPTEN__)
  //
#else
  openlog(myEventSourceName.ToCString(), LOG_PID | LOG_NDELAY, LOG_USER);
#endif
}

//=================================================================================================

Message_PrinterSystemLog::~Message_PrinterSystemLog()
{
#if defined(_WIN32)
  if (myEventSource != NULL)
  {
  #if !defined(OCCT_UWP)
    DeregisterEventSource((HANDLE)myEventSource);
  #endif
  }
#elif defined(__ANDROID__)
  //
#elif defined(__EMSCRIPTEN__)
  //
#else
  closelog();
#endif
}

//=================================================================================================

void Message_PrinterSystemLog::send(const TCollection_AsciiString& theString,
                                    const Message_Gravity          theGravity) const
{
  if (theGravity < myTraceLevel)
  {
    return;
  }

#if defined(_WIN32)
  if (myEventSource != NULL)
  {
  #if !defined(OCCT_UWP)
    const TCollection_ExtendedString aWideString(theString);
    const WORD                       aLogType    = getEventLogPriority(theGravity);
    const wchar_t*                   aMessage[1] = {aWideString.ToWideString()};
    ReportEventW((HANDLE)myEventSource, aLogType, 0, 0, NULL, 1, 0, aMessage, NULL);
  #else
    (void)theString;
  #endif
  }
#elif defined(__ANDROID__)
  __android_log_write(getAndroidLogPriority(theGravity),
                      myEventSourceName.ToCString(),
                      theString.ToCString());
#elif defined(__EMSCRIPTEN__)
  // don't use bogus emscripten_log() corrupting UNICODE strings
  switch (theGravity)
  {
    case Message_Trace:
      occJSConsoleDebug(theString.ToCString());
      return;
    case Message_Info:
      occJSConsoleInfo(theString.ToCString());
      return;
    case Message_Warning:
      occJSConsoleWarn(theString.ToCString());
      return;
    case Message_Alarm:
      occJSConsoleError(theString.ToCString());
      return;
    case Message_Fail:
      occJSConsoleError(theString.ToCString());
      return;
  }
  occJSConsoleWarn(theString.ToCString());
#else
  syslog(getSysLogPriority(theGravity), "%s", theString.ToCString());
#endif
}