//----------------------------------------------------------------------------
//  EgalTech 2015-2015
//----------------------------------------------------------------------------
// File : Writer.cpp            Data : 02.06.15          Versione : 1.6f1
// Contenuto : Implementazione della classe Writer.
//             Scrittura di file di testo con codifica UTF-8.
//
//
// Modifiche : 02.06.15 DS Creazione modulo.
//
//
//
//----------------------------------------------------------------------------

//--------------------------- Include ----------------------------------------
#include "stdafx.h"
#include "/EgtDev/Include/EGnWriter.h"
#include "/EgtDev/Include/EgtStringConverter.h"
#include "/EgtDev/Extern/Zlib/Include/zlib.h"

using namespace std ;

//----------------------------------------------------------------------------
bool
Writer::Init( const string& sFileOut, bool bCompressed) 
{
  // apertura del file di uscita
   m_OutFile = gzopen_w( stringtoW( sFileOut), ( bCompressed ? "wb" : "wbT")) ;
   if ( m_OutFile == nullptr)
      return false ;
   const int DIM_BUFFER = 65536 ;
   if ( gzbuffer( m_OutFile, DIM_BUFFER) != Z_OK)
      return false ;
   if ( bCompressed) {
      const int COMPR_LEVEL = 3 ;    // 0 = no compression ... 9 = max compression
      if ( gzsetparams( m_OutFile, COMPR_LEVEL, Z_DEFAULT_STRATEGY) != Z_OK)
         return false ;
   }
   return true ;
}

//----------------------------------------------------------------------------
bool
Writer::Close( void) 
{
   if ( m_OutFile != nullptr) {
      bool bOk = ( gzclose( m_OutFile) == Z_OK) ;
      m_OutFile = nullptr ;
      return bOk ;
   }
   return true ;
}

//----------------------------------------------------------------------------
bool
Writer::OutText( const string& sText, bool bEndL)
{
  // verifico apertura file
   if ( m_OutFile == nullptr)
      return false ;
  // scrivo stringa
   if ( gzputs( m_OutFile, sText.c_str()) == Z_ERRNO)
      return false ;
  // se richiesto, scrivo fine linea
   if ( bEndL) {
      if ( gzputs( m_OutFile, "\r\n") == Z_ERRNO)
         return false ;
   }
   return true ;
}