#include "nglloggerhandler.h"
#include "ngl_qt_msg_handler.inc"
#include <NGLLogger/NGLLoggerBootstrap.h>
#include <nglsettings/nglsettings_settings.h>
#include <nglcoreapplication.h>

namespace NGL
{

static QByteArray username()
{
#ifdef Q_OS_WIN
  return qgetenv("USERNAME");
#else
  return qgetenv("USER");
#endif
}

static void setEnvVars()
{
  const QString logPath = NGL::Settings::logPath();
  qputenv("LOG4QT_LOGDIR", logPath.toLocal8Bit());
  qputenv("LOG4QT_USER", username());
}

void LoggerHandler::createLogger(const QByteArray &baseName, const char *configFileName, bool quiet)
{
  setEnvVars();
  m_baseLoggerName = baseName;

  const QString bnStr(QString::fromLatin1(baseName.toLower()));
  const QString logPath = NGL::Settings::logPath();
  m_loggerFilenamePostfix = logPath + QLatin1Char('/') + QString::fromLocal8Bit(username()) + QLatin1Char('_') + bnStr;
  m_loggerFilenamePrefix = QLatin1String(".log");

  const QString logOutputName = m_loggerFilenamePostfix + m_loggerFilenamePrefix;
  NGL::NGLLoggerBootstrap::createNGLRootLogger(QString::fromLatin1(configFileName), false, logOutputName, quiet);
 
  qInstallMessageHandler(&qtMsgHandler);
}

void LoggerHandler::createLogger(const QByteArray &baseName, int exerciseId, int additionalId, bool quiet)
{
  setEnvVars();

  const QString bnStr(QString::fromLatin1(baseName.toLower()));
  const QString configFileName = QLatin1String("log4cxx_") + bnStr + QLatin1String(".props");
  const QString logPath = NGL::Settings::logPath();
  m_loggerFilenamePostfix = logPath + QLatin1Char('/') + QString::fromLocal8Bit(username()) + QLatin1Char('_') + bnStr;
  if (exerciseId > 0)
    m_loggerFilenamePostfix += QLatin1Char('_') + QString::number(exerciseId);
  if (additionalId > 0)
    m_loggerFilenamePostfix += QLatin1Char('_') + QString::number(additionalId);

  m_loggerFilenamePrefix = QLatin1String(".log");
  m_baseLoggerName = baseName + QByteArray(".main");

  const QString logOutputName = m_loggerFilenamePostfix + m_loggerFilenamePrefix;
  NGL::NGLLoggerBootstrap::createNGLRootLogger(configFileName, false, logOutputName, quiet);  
  qInstallMessageHandler(&qtMsgHandler);
}

NGL::INGLLogger &LoggerHandler::baseLogger() const
{
  return NGL::NGLLoggerBootstrap::getNGLRootLogger().getNGLLogger(m_baseLoggerName.data());
}

NGL::INGLLogger &LoggerHandler::logger(const char *loggerName) const
{
  return NGL::NGLLoggerBootstrap::getNGLRootLogger().getNGLLogger(loggerName);
}

LoggerHandler *LoggerHandler::getLoggerHandler()
{
  return dynamic_cast<LoggerHandler*>(QCoreApplication::instance());
}

}