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// -*- C++ -*-

/*!

 * @file SystemLogger.cpp

 * @brief RT component logger class

 * @date $Date: 2007-07-20 16:10:32 $

 * @author Noriaki Ando <n-ando@aist.go.jp>

 *

 * Copyright (C) 2003-2008

 *     Task-intelligence Research Group,

 *     Intelligent Systems Research Institute,

 *     National Institute of

 *         Advanced Industrial Science and Technology (AIST), Japan

 *     All rights reserved.

 *

 * $Id: SystemLogger.cpp 845 2008-09-25 11:10:40Z n-ando $

 *

 */

#include <rtm/SystemLogger.h>

#include <rtm/Manager.h>

#if defined(_MSC_VER)

#define snprintf _snprintf

#endif

namespace RTC

{

  const char* Logger::m_levelString[] =

    {

      " SILENT: ",

      " FATAL: ",

      " ERROR: ",

      " WARNING: ",

      " INFO: ",

      " DEBUG: ",

      " TRACE: ",

      " VERBOSE: ",

      " PARANOID: "

    };

  Logger::Logger(const char* name)

    : ::coil::LogStream(&(Manager::instance().getLogStreamBuf()),

                        RTL_SILENT, RTL_PARANOID, RTL_SILENT),

      m_name(name),

      m_dateFormat("%b %d %H:%M:%S.%Q"),

      m_clock(&coil::ClockManager::instance().getClock("system")),

      m_msEnable(0), m_usEnable(0), m_colorEnable(false)

  {

    setLevel(Manager::instance().getLogLevel().c_str());

    coil::Properties& prop(Manager::instance().getConfig());

    if (prop.findNode("logger.date_format") != NULL)

      {

        setDateFormat(prop["logger.date_format"].c_str());

      }

    if (prop.findNode("logger.clock_type") != NULL)

      {

        setClockType(prop["logger.clock_type"]);

      }

  }

  Logger::Logger(LogStreamBuf* streambuf)

    : ::coil::LogStream(streambuf,

                        RTL_SILENT, RTL_PARANOID,  RTL_SILENT),

      m_name("unknown"),

      m_dateFormat("%b %d %H:%M:%S.%Q"),

      m_clock(&coil::ClockManager::instance().getClock("system")),

      m_msEnable(0), m_usEnable(0), m_colorEnable(false)

  {

    setDateFormat(m_dateFormat.c_str());

  }

  Logger::~Logger(void)

  {

  }

  /*!

   * @if jp

   * @brief ログレベルを文字列で設定する

   * @else

   * @brief Set log level by string

   * @endif

   */

  bool Logger::setLevel(const char* level)

  {

    return coil::LogStream::setLevel(strToLevel(level));

  }

  /*!

   * @if jp

   * @brief ヘッダに付加する日時フォーマットを指定する。

   * @else

   * @brief Set date/time format for adding the header

   * @endif

   */

  void Logger::setDateFormat(const char* format)

  {

    m_dateFormat = std::string(format);

    m_msEnable = coil::replaceString(m_dateFormat, "%Q", "#m#");

    m_usEnable = coil::replaceString(m_dateFormat, "%q", "#u#");

  }

  void Logger::setClockType(std::string clocktype)

  {

    m_clock = &coil::ClockManager::instance().getClock(clocktype);

  }

  /*!

   * @if jp

   * @brief ヘッダの日時の後に付加する文字列を設定する。

   * @else

   * @brief Set suffix of date/time string of header.

   * @endif

   */

  void Logger::setName(const char* name)

  {

    m_name = name;

  }

  /*!

   * @if jp

   * @brief カラーモード設定

   * カラーモードを有効にする。

   * @else

   * @brief Enable the color mode

   * Enable the color mode.

   * @endif

   */

  void Logger::enableColor()

  {

    m_colorEnable = true;

  }

  /*!

   * @if jp

   * @brief カラーモード解除

   * カラーモードを無効にする。

   * @else

   * @brief Disable the color mode

   * Disable the color mode.

   * @endif

  */

  void Logger::disableColor()

  {

    m_colorEnable = false;

  }

  /*!

   * @if jp

   * @brief メッセージのプリフィックス追加関数

   * @else

   * @brief Message prefix appender function

   * @endif

   */

  void Logger::header(int level)

  {

    const char* color[] =

      {

        "\x1b[0m",         // SLILENT  (none)

        "\x1b[0m\x1b[31m", // FATAL    (red)

        "\x1b[0m\x1b[35m", // ERROR    (magenta)

        "\x1b[0m\x1b[33m", // WARN     (yellow)

        "\x1b[0m\x1b[34m", // INFO     (blue)

        "\x1b[0m\x1b[32m", // DEBUG    (green)

        "\x1b[0m\x1b[36m", // TRACE    (cyan)

        "\x1b[0m\x1b[39m", // VERBOSE  (default)

        "\x1b[0m\x1b[37m"  // PARANOID (white)

      };

    if (m_colorEnable)

      {

        *this << color[level];

      }

    *this << getDate() + m_levelString[level] + m_name + ": ";

    *this << "\x1b[0m";

  }

  /*!

   * @if jp

   * @brief フォーマットされた現在日時文字列を取得する。

   * @else

   * @brief Get the current formatted date/time string

   * @endif

   */

  std::string Logger::getDate(void)

  {

    const int maxsize = 256;

    char buf[maxsize];

    coil::TimeValue tm(m_clock->gettime());

    time_t timer;

    struct tm* date;

    timer = tm.sec();

    date = gmtime(&timer);

    strftime(buf, sizeof(buf), m_dateFormat.c_str(), date);

    std::string fmt(buf);

    if (m_msEnable > 0)

      {

        char msec[4];

#ifdef WIN32

        _snprintf(msec, 4, "%03d", (int)(tm.usec() / 1000));

#else

        snprintf(msec, 4, "%03d", (int)(tm.usec() / 1000));

#endif

        coil::replaceString(fmt, "#m#", msec);

      }

    if (m_usEnable > 0)

      {

        char usec[4];

#ifdef WIN32

        _snprintf(usec, 4, "%03d",

                 (int)(tm.usec() - ((tm.usec() / 1000) * 1000)));

#else

        snprintf(usec, 4, "%03d",

                 (int)(tm.usec() - ((tm.usec() / 1000) * 1000)));

#endif

        coil::replaceString(fmt, "#u#", usec);

      }

    return fmt;

  }

  /*!

   * @if jp

   * @brief ログレベル設定

   * @else

   * @brief Set the log level

   * @endif

   */

  int Logger::strToLevel(const char* level)

  {

    std::string lv(level);

    if      (lv == "SILENT")

      return RTL_SILENT;

    else if (lv == "FATAL")

      return RTL_FATAL;

    else if (lv == "ERROR")

      return RTL_ERROR;

    else if (lv == "WARN")

      return RTL_WARN;

    else if (lv == "INFO")

      return RTL_INFO;

    else if (lv == "DEBUG")

      return RTL_DEBUG;

    else if (lv == "TRACE")

      return RTL_TRACE;

    else if (lv == "VERBOSE")

      return RTL_VERBOSE;

    else if (lv == "PARANOID")

      return RTL_PARANOID;

    else

      return RTL_SILENT;

  }

}; // namespace RTC