// $Id$
//
// Copyright (C)  2005-2010 Greg Landrum and Rational Discovery LLC
//
//  @@ All Rights Reserved @@
//  This file is part of the RDKit.
//  The contents are covered by the terms of the BSD license
//  which is included in the file license.txt, found at the root
//  of the RDKit source tree.
//
#include "RDLog.h"

#if 1
#include <iomanip>
#include <string>
#include <time.h>

namespace {
// this is a "bit" of a hack to work around shared/static library problems
// on windows
boost::logging::rdLogger cerrLogger(&std::cerr);
boost::logging::rdLogger coutLogger(&std::cout);
}

boost::logging::rdLogger *rdAppLog = nullptr;
boost::logging::rdLogger *rdDebugLog = nullptr;
boost::logging::rdLogger *rdInfoLog = &coutLogger;
boost::logging::rdLogger *rdErrorLog = &cerrLogger;
boost::logging::rdLogger *rdWarningLog = &cerrLogger;
boost::logging::rdLogger *rdStatusLog = nullptr;

namespace boost {
namespace logging {

void enable_logs(const char *arg) { enable_logs(std::string(arg)); };
void enable_logs(const std::string &arg) {
  // Yes... this is extremely crude
  if (arg == "rdApp.debug" || arg == "rdApp.*") {
    if (rdDebugLog) rdDebugLog->df_enabled = true;
  }
  if (arg == "rdApp.info" || arg == "rdApp.*") {
    if (rdInfoLog) rdInfoLog->df_enabled = true;
  }
  if (arg == "rdApp.warning" || arg == "rdApp.*") {
    if (rdWarningLog) rdWarningLog->df_enabled = true;
  }
  if (arg == "rdApp.error" || arg == "rdApp.*") {
    if (rdErrorLog) rdErrorLog->df_enabled = true;
  }
};
void disable_logs(const char *arg) { disable_logs(std::string(arg)); };
void disable_logs(const std::string &arg) {
  // Yes... this is extremely crude
  if (arg == "rdApp.debug" || arg == "rdApp.*") {
    if (rdDebugLog) rdDebugLog->df_enabled = false;
  }
  if (arg == "rdApp.info" || arg == "rdApp.*") {
    if (rdInfoLog) rdInfoLog->df_enabled = false;
  }
  if (arg == "rdApp.warning" || arg == "rdApp.*") {
    if (rdWarningLog) rdWarningLog->df_enabled = false;
  }
  if (arg == "rdApp.error" || arg == "rdApp.*") {
    if (rdErrorLog) rdErrorLog->df_enabled = false;
  }
};
}
}

namespace RDLog {
void InitLogs() {
  rdDebugLog = new boost::logging::rdLogger(&std::cerr);
  rdInfoLog = new boost::logging::rdLogger(&std::cout);
  rdWarningLog = new boost::logging::rdLogger(&std::cerr);
  rdErrorLog = new boost::logging::rdLogger(&std::cerr);
}
std::ostream &toStream(std::ostream &logstrm) {
  time_t t = time(nullptr);
  tm details = *localtime(&t);
  logstrm << "[" << std::setw(2) << std::setfill('0') << details.tm_hour << ":"
          << std::setw(2) << std::setfill('0') << details.tm_min << ":"
          << std::setw(2) << std::setfill('0') << int(details.tm_sec) << "] ";
  return logstrm;
}
}

#else
#include <boost/log/functions.hpp>
#if defined(BOOST_HAS_THREADS2)
#include <boost/log/extra/functions_ts.hpp>
#endif
#include <iostream>
namespace logging = boost::logging;

BOOST_DEFINE_LOG(rdAppLog, "rdApp")
BOOST_DEFINE_LOG(rdDebugLog, "rdApp.debug")
BOOST_DEFINE_LOG(rdInfoLog, "rdApp.info")
BOOST_DEFINE_LOG(rdErrorLog, "rdApp.error")
BOOST_DEFINE_LOG(rdWarningLog, "rdApp.warning")
BOOST_DEFINE_LOG(rdStatusLog, "rdApp.status")

namespace RDLog {
void write_to_cout(const std::string &, const std::string &msg) {
  std::cout << msg;
  std::cout.flush();
}
void write_to_cerr(const std::string &, const std::string &msg) {
  std::cerr << msg;
  std::cerr.flush();
}

void InitLogs() {
  static bool callOnce = true;
  if (!callOnce) return;
  callOnce = false;

  // turn off caching:
  logging::set_log_caching(false);
  logging::manipulate_logs("rdApp.*").add_modifier(
      logging::prepend_time("[$hh:$mm:$ss] "), logging::DEFAULT_INDEX - 10);
  logging::manipulate_logs("rdApp.info")
      .add_appender(write_to_cout, logging::DEFAULT_INDEX + 1);
#if defined(BOOST_HAS_THREADS2)
  logging::manipulate_logs("rdApp.error")
      .add_appender(logging::ts_appender(write_to_cerr, 100),
                    logging::DEFAULT_INDEX + 1);
  logging::manipulate_logs("rdApp.warning")
      .add_appender(logging::ts_appender(write_to_cerr, 100),
                    logging::DEFAULT_INDEX + 1);
  logging::manipulate_logs("rdApp.status")
      .add_appender(logging::ts_appender(write_to_cerr, 100),
                    logging::DEFAULT_INDEX + 1);
  logging::manipulate_logs("rdApp.debug")
      .add_appender(logging::ts_appender(write_to_cerr, 100),
                    logging::DEFAULT_INDEX + 1);
#else
  logging::manipulate_logs("rdApp.error")
      .add_appender(write_to_cerr, logging::DEFAULT_INDEX + 1);
  logging::manipulate_logs("rdApp.warning")
      .add_appender(write_to_cerr, logging::DEFAULT_INDEX + 1);
  logging::manipulate_logs("rdApp.status")
      .add_appender(write_to_cerr, logging::DEFAULT_INDEX + 1);
  logging::manipulate_logs("rdApp.debug")
      .add_appender(write_to_cerr, logging::DEFAULT_INDEX + 1);
#endif
  // start with the debug log disabled:
  logging::disable_logs("rdApp.debug");
};
}
#endif