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// $Id: RlogFile.cpp 539 2013-10-13 17:06:35Z mueller $
//
// Copyright 2011-2013 by Walter F.J. Mueller <W.F.J.Mueller@gsi.de>
//
// This program is free software; you may redistribute and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation, either version 2, or at your option any later version.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
// for complete details.
// 
// Revision History: 
// Date         Rev Version  Comment
// 2013-10-11   539   2.1.1  fix date print (month was off by one)
// 2013-02-23   492   2.1    add Name(), keep log file name; add Dump()
// 2013-02-22   491   2.0    add Write(),IsNew(), RlogMsg iface; use lockable
// 2011-01-30   357   1.0    Initial version
// ---------------------------------------------------------------------------
 
/*!
  \file
  \version $Id: RlogFile.cpp 539 2013-10-13 17:06:35Z mueller $
  \brief   Implemenation of RlogFile.
*/
 
#include <sys/time.h>
 
#include "boost/thread/locks.hpp"
 
#include "RosFill.hpp"
#include "RosPrintf.hpp"
#include "RlogMsg.hpp"
 
#include "RlogFile.hpp"
 
using namespace std;
 
/*!
  \class Retro::RlogFile
  \brief FIXME_docs
*/
 
// all method definitions in namespace Retro
namespace Retro {
 
//------------------------------------------+-----------------------------------
//! Default constructor
 
RlogFile::RlogFile()
  : fpExtStream(0),
    fIntStream(),
    fNew(true),
    fName(),
    fMutex()
{
  ClearTime();
}
 
//------------------------------------------+-----------------------------------
//! FIXME_docs
 
RlogFile::RlogFile(std::ostream* os, const std::string& name)
  : fpExtStream(os),
    fIntStream(),
    fNew(false),
    fName(name),
    fMutex()
{
  ClearTime();
}
 
//------------------------------------------+-----------------------------------
//! Destructor
 
RlogFile::~RlogFile()
{}
 
//------------------------------------------+-----------------------------------
//! FIXME_docs
 
bool RlogFile::Open(std::string name)
{
  fNew = false;
  fpExtStream = 0;
  fName = name;
  fIntStream.open(name.c_str());
  return fIntStream.is_open();
}
 
//------------------------------------------+-----------------------------------
//! FIXME_docs
 
void RlogFile::Close()
{
  fIntStream.close();
  return;
}
 
//------------------------------------------+-----------------------------------
//! FIXME_docs
 
void RlogFile::UseStream(std::ostream* os, const std::string& name)
{
  fNew = false;
  if (fIntStream.is_open()) Close();
  fpExtStream = os;
  fName = name;
  return;
}
 
//------------------------------------------+-----------------------------------
//! FIXME_docs
 
void RlogFile::Write(const std::string& str, char tag)
{
  ostream& os = fpExtStream ? *fpExtStream : fIntStream;
 
  boost::lock_guard<RlogFile> lock(*this);
 
  if (tag) {
    struct timeval tval;
    ::gettimeofday(&tval, 0);
 
    struct tm tymd;
    ::localtime_r(&tval.tv_sec, &tymd);
 
    if (tymd.tm_year != fTagYear  ||
        tymd.tm_mon  != fTagMonth ||
        tymd.tm_mday != fTagDay) {
 
      os << "-+- " 
         << RosPrintf(tymd.tm_year+1900,"d",4) << "-"
         << RosPrintf(tymd.tm_mon+1,"d0",2) << "-"
         << RosPrintf(tymd.tm_mday,"d0",2) << " -+- \n";
 
      fTagYear  = tymd.tm_year;
      fTagMonth = tymd.tm_mon;
      fTagDay   = tymd.tm_mday;
    }
 
    int usec = (int)(tval.tv_usec/1000);
 
    os << "-" << tag << "- "
       << RosPrintf(tymd.tm_hour,"d0",2) << ":"
       << RosPrintf(tymd.tm_min,"d0",2) << ":"
       << RosPrintf(tymd.tm_sec,"d0",2) << "."
       << RosPrintf(usec,"d0",3) << " : ";
  }
 
  os << str;
  if (str[str.length()-1] != '\n') os << endl;
 
  return;
}
 
//------------------------------------------+-----------------------------------
//! FIXME_docs
 
void RlogFile::Dump(std::ostream& os, int ind, const char* text) const
{
  RosFill bl(ind);
  os << bl << (text?text:"--") << "RlogFile @ " << this << endl;
  os << bl << "  fpExtStream:     " << fpExtStream << endl;
  os << bl << "  fIntStream.isopen " << fIntStream.is_open() << endl;
  os << bl << "  fNew             " << fNew << endl;
  os << bl << "  fName            " << fName << endl;
  os << bl << "  fTagYr,Mo,Dy     " << fTagYear << ", " << fTagMonth
                                    << ", " << fTagDay << endl;
  return;
}
 
//------------------------------------------+-----------------------------------
//! FIXME_docs
 
void RlogFile::lock()
{
  fMutex.lock();
  return;
}
 
//------------------------------------------+-----------------------------------
//! FIXME_docs
 
void RlogFile::unlock()
{
  fMutex.unlock();
  return;
}
 
//------------------------------------------+-----------------------------------
//! FIXME_docs
 
RlogFile& RlogFile::operator<<(const RlogMsg& lmsg)
{
  string str = lmsg.String();
  if (str.length() > 0) Write(str, lmsg.Tag());
  return *this;
}
 
//------------------------------------------+-----------------------------------
//! FIXME_docs
 
void RlogFile::ClearTime()
{
  fTagYear  = -1;
  fTagMonth = -1;
  fTagDay   = -1;
  return;
}
 
} // end namespace Retro