// boostLogger.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <stdio.h>
#include <tchar.h>
#include <fstream>
#include <iomanip>

#include <boost/log/trivial.hpp>
#include <boost/log/core.hpp>
#include <boost/log/expressions.hpp>   //  logging::trivial::severity
#include <boost/log/sinks/sync_frontend.hpp>
#include <boost/log/sinks/text_ostream_backend.hpp>
#include <boost/log/sources/severity_logger.hpp>
#include <boost/log/sources/severity_feature.hpp>

#include <boost/log/attributes/constant.hpp>

#include <boost/smart_ptr/shared_ptr.hpp>
#include <boost/utility/empty_deleter.hpp>

namespace logging = boost::log;
namespace src = boost::log::sources; 
namespace keywords = boost::log::keywords;
namespace sinks = boost::log::sinks;

namespace attrs = boost::log::attributes;
namespace expr = boost::log::expressions;

static const unsigned int myWidth = 5;
static const unsigned int headerWidth = 10;

src::severity_logger_mt< logging::trivial::severity_level > lg;
logging::trivial::severity_level mySev;

void logGEMM( int m, int n, int k )
{
    lg.add_attribute( "M", attrs::constant< int >( m ) );
    lg.add_attribute( "N", attrs::constant< int >( n ) );
    lg.add_attribute( "K", attrs::constant< int >( k ) );

    BOOST_LOG_SEV( lg, logging::trivial::trace );

    lg.remove_all_attributes( );
}

int _tmain(int argc, _TCHAR* argv[])
{
    typedef sinks::synchronous_sink< sinks::text_ostream_backend > text_sink;
    boost::shared_ptr< text_sink > sink = boost::make_shared< text_sink >( );

    boost::shared_ptr< std::ostream > stream( &std::clog, boost::empty_deleter( ) );
    sink->locked_backend( )->add_stream( stream );

    boost::shared_ptr< logging::core > core = logging::core::get( );

    // BUG:  This set_filter call affects the behavior of remove_all_attributes
    // BUG:  Comment this out for correct logging behavior
    core->set_filter( logging::trivial::severity >= logging::trivial::trace );

    core->add_sink( sink );

    sink->set_formatter( expr::stream
                         << std::setw( myWidth ) << "[ " << expr::attr< int >( "M" ) << " ] "
                         << std::setw( myWidth ) << "[ " << expr::attr< int >( "N" ) << " ] "
                         << std::setw( myWidth ) << "[ " << expr::attr< int >( "K" ) << " ] "
                         << expr::smessage );

    float tmp = 1.0f;

    logGEMM( 1, 2, 3 );
    logGEMM( 4, 5, 6 );
    logGEMM( 7, 8, 9 );

	return 0;
}