// Part of BNC, a utility for retrieving decoding and
// converting GNSS data streams from NTRIP broadcasters.
//
// Copyright (C) 2007
// German Federal Agency for Cartography and Geodesy (BKG)
// http://www.bkg.bund.de
// Czech Technical University Prague, Department of Geodesy
// http://www.fsv.cvut.cz
//
// Email: euref-ip@bkg.bund.de
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation, version 2.
//
// 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 more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

/* -------------------------------------------------------------------------
 * BKG NTRIP Client
 * -------------------------------------------------------------------------
 *
 * Class:      t_reqcAnalyze
 *
 * Purpose:    Analyze RINEX Files
 *
 * Author:     L. Mervart
 *
 * Created:    11-Apr-2012
 *
 * Changes:    
 *
 * -----------------------------------------------------------------------*/

#include <iostream>
#include "reqcanalyze.h"
#include "bncapp.h"
#include "bncsettings.h"
#include "reqcedit.h"
#include "bncutils.h"
#include "bncpostprocess.h"

using namespace std;

// Constructor
////////////////////////////////////////////////////////////////////////////
t_reqcAnalyze::t_reqcAnalyze(QObject* parent) : QThread(parent) {

  bncSettings settings;

  _logFileName  = settings.value("reqcOutLogFile").toString(); expandEnvVar(_logFileName);
  _logFile      = 0;
  _log          = 0;
  _obsFileNames = settings.value("reqcObsFile").toString().split(",", QString::SkipEmptyParts);
  _navFileNames = settings.value("reqcNavFile").toString().split(",", QString::SkipEmptyParts);
}

// Destructor
////////////////////////////////////////////////////////////////////////////
t_reqcAnalyze::~t_reqcAnalyze() {
  for (int ii = 0; ii < _rnxObsFiles.size(); ii++) {
    delete _rnxObsFiles[ii];
  }
  for (int ii = 0; ii < _ephs.size(); ii++) {
    delete _ephs[ii];
  }
  delete _log;     _log     = 0;
  delete _logFile; _logFile = 0;
}

//  
////////////////////////////////////////////////////////////////////////////
void t_reqcAnalyze::run() {

  // Open Log File
  // -------------
  _logFile = new QFile(_logFileName);
  _logFile->open(QIODevice::WriteOnly | QIODevice::Text);
  _log = new QTextStream();
  _log->setDevice(_logFile);

  // Initialize RINEX Observation Files
  // ----------------------------------
  t_reqcEdit::initRnxObsFiles(_obsFileNames, _rnxObsFiles);

  // Read Ephemerides
  // ----------------
  t_reqcEdit::readEphemerides(_navFileNames, _ephs);

  // Loop over all RINEX Files
  // -------------------------
  for (int ii = 0; ii < _rnxObsFiles.size(); ii++) {
    analyzeFile(_rnxObsFiles[ii]);
  }

  // Exit
  // ----
  bncApp* app = (bncApp*) qApp;
  if ( app->mode() != bncApp::interactive) {
    app->exit(0);
  }
  else {
    emit finished();
    deleteLater();
  }
}

//  
////////////////////////////////////////////////////////////////////////////
void t_reqcAnalyze::analyzeFile(t_rnxObsFile* obsFile) {

  *_log << "Analyze File\n"
        << "------------\n"
        << obsFile->fileName().toAscii().data() << endl << endl;

  // Loop over all Epochs
  // --------------------
  t_rnxObsFile::t_rnxEpo* epo = 0;
  while ( (epo = obsFile->nextEpoch()) != 0) {

    // Loop over all satellites
    // ------------------------
    for (unsigned iObs = 0; iObs < epo->rnxSat.size(); iObs++) {
      const t_rnxObsFile::t_rnxSat& rnxSat = epo->rnxSat[iObs];
      t_obs obs;
      t_postProcessing::setObsFromRnx(obsFile, epo, rnxSat, obs);

      if (obs.satSys == 'R') {
        // TODO: set channel number
      }

      QString prn = QString("%1%2").arg(obs.satSys)
                                   .arg(obs.satNum, 2, 10, QChar('0'));
      _satStat[prn].addObs(obs);
    }

  } // while (epo)

  _log->flush();
}

//  
////////////////////////////////////////////////////////////////////////////
void t_reqcAnalyze::t_satStat::addObs(const t_obs& obs) {
  if (currObs) {
    delete prevObs;
    prevObs = currObs;
  }
  currObs = new t_obs(obs);

  if (obs.p1() != 0.0 && obs.p2() != 0.0 && obs.l1() != 0.0 && obs.l2() != 0.0){

  }
}