// 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:      reqcDlg
 *
 * Purpose:    Displays the teqc-like editing options
 *
 * Author:     L. Mervart
 *
 * Created:    28-Mar-2012
 *
 * Changes:    
 *
 * -----------------------------------------------------------------------*/

#include <iostream>

#include "reqcdlg.h"
#include "bncsettings.h"

using namespace std;


// Constructor
////////////////////////////////////////////////////////////////////////////
reqcDlg::reqcDlg(QWidget* parent) : QDialog(parent) {

  setWindowTitle(tr("RINEX Editing Options"));

  int ww = QFontMetrics(font()).width('w');

  const QString timeFmtString = "yyyy-MM-dd hh:mm:ss";

  _reqcRnxVersion      = new QComboBox(this);
  _reqcSampling        = new QSpinBox(this);
  _reqcStartDateTime   = new QDateTimeEdit(this);
  _reqcStartDateTime->setDisplayFormat(timeFmtString);
  _reqcEndDateTime     = new QDateTimeEdit(this);
  _reqcEndDateTime->setDisplayFormat(timeFmtString);
  _reqcRunBy           = new QLineEdit(this);
  _reqcUseObsTypes     = new QLineEdit(this);
  _reqcComment         = new QLineEdit(this);
  _reqcOldMarkerName   = new QLineEdit(this);
  _reqcNewMarkerName   = new QLineEdit(this);
  _reqcOldAntennaName  = new QLineEdit(this);
  _reqcNewAntennaName  = new QLineEdit(this);
  _reqcOldReceiverName = new QLineEdit(this);
  _reqcNewReceiverName = new QLineEdit(this);

  _reqcRnxVersion->setEditable(false);
  _reqcRnxVersion->addItems(QString("2,3").split(","));
  _reqcRnxVersion->setMaximumWidth(7*ww);

  _reqcSampling->setMinimum(0);
  _reqcSampling->setMaximum(60);
  _reqcSampling->setSingleStep(5);
  _reqcSampling->setSuffix(" sec");
  _reqcSampling->setMaximumWidth(7*ww);

  // Read Options
  // ------------
  bncSettings settings;

  int kk = _reqcRnxVersion->findText(settings.value("reqcRnxVersion").toString());
  if (kk != -1) {
    _reqcRnxVersion->setCurrentIndex(kk);
  }
  _reqcSampling->setValue(settings.value("reqcSampling").toInt());
  if (settings.value("reqcStartDateTime").toString().isEmpty()) {
    _reqcStartDateTime->setDateTime(QDateTime::fromString("1967-11-02T00:00:00", Qt::ISODate));
  }
  else {
    _reqcStartDateTime->setDateTime(settings.value("reqcStartDateTime").toDateTime());
  }
  if (settings.value("reqcEndDateTime").toString().isEmpty()) {
    _reqcEndDateTime->setDateTime(QDateTime::fromString("2099-01-01T00:00:00", Qt::ISODate));
  }
  else {
    _reqcEndDateTime->setDateTime(settings.value("reqcEndDateTime").toDateTime());
  }
  _reqcRunBy->setText(settings.value("reqcRunBy").toString());
  _reqcUseObsTypes->setText(settings.value("reqcUseObsTypes").toString());
  _reqcComment->setText(settings.value("reqcComment").toString());
  _reqcOldMarkerName->setText(settings.value("reqcOldMarkerName").toString());
  _reqcNewMarkerName->setText(settings.value("reqcNewMarkerName").toString());
  _reqcOldAntennaName->setText(settings.value("reqcOldAntennaName").toString());
  _reqcNewAntennaName->setText(settings.value("reqcNewAntennaName").toString());
  _reqcOldReceiverName->setText(settings.value("reqcOldReceiverName").toString());
  _reqcNewReceiverName->setText(settings.value("reqcNewReceiverName").toString());

  QString hlp = settings.value("reqcV2Priority").toString();
  if (hlp.isEmpty()) {
    hlp = "CWPX_?";
  }
  _reqcV2Priority = new QLineEdit(hlp);

  // Dialog Layout
  // -------------
  QGridLayout* grid = new QGridLayout;

  int ir = 0;
  grid->addWidget(new QLabel("RINEX Version"),    ir, 1);
  grid->addWidget(_reqcRnxVersion,                ir, 2);
  grid->addWidget(new QLabel("Sampling"),         ir, 3, Qt::AlignRight);
  grid->addWidget(_reqcSampling,                  ir, 4);
  ++ir;
  grid->addWidget(new QLabel("Version 2 Signal Priority"), ir, 1);
  grid->addWidget(_reqcV2Priority,                ir, 2);
  ++ir;
  grid->addWidget(new QLabel("Start"),            ir, 1);
  grid->addWidget(_reqcStartDateTime,             ir, 2);
  grid->addWidget(new QLabel("End"),              ir, 3, Qt::AlignRight);
  grid->addWidget(_reqcEndDateTime,               ir, 4);
  ++ir;
  grid->addWidget(new QLabel("Run By"),           ir, 0);
  grid->addWidget(_reqcRunBy,                     ir, 1);
  ++ir;
  grid->addWidget(new QLabel("Use Obs. Types"),   ir, 0);
  grid->addWidget(_reqcUseObsTypes,               ir, 1, 1, 4);
  ++ir;
  grid->addWidget(new QLabel("Comment(s)"),       ir, 0);
  grid->addWidget(_reqcComment,                   ir, 1, 1, 4);
  ++ir;
  grid->addWidget(new QLabel("Old"),              ir, 1, 1, 2, Qt::AlignCenter);
  grid->addWidget(new QLabel("New"),              ir, 3, 1, 2, Qt::AlignCenter);
  ++ir;
  grid->addWidget(new QLabel("Marker Name"),      ir, 0);
  grid->addWidget(_reqcOldMarkerName,             ir, 1, 1, 2);
  grid->addWidget(_reqcNewMarkerName,             ir, 3, 1, 2);
  ++ir;
  grid->addWidget(new QLabel("Antenna Name"),     ir, 0);
  grid->addWidget(_reqcOldAntennaName,            ir, 1, 1, 2);
  grid->addWidget(_reqcNewAntennaName,            ir, 3, 1, 2);
  ++ir;
  grid->addWidget(new QLabel("Receiver Name"),    ir, 0);
  grid->addWidget(_reqcOldReceiverName,           ir, 1, 1, 2);
  grid->addWidget(_reqcNewReceiverName,           ir, 3, 1, 2);

  slotReqcTextChanged();
  connect(_reqcRnxVersion, SIGNAL(currentIndexChanged(const QString &)),
          this, SLOT(slotReqcTextChanged()));

  _buttonWhatsThis = new QPushButton(tr("Help=Shift+F1"), this);
  connect(_buttonWhatsThis, SIGNAL(clicked()), this, SLOT(slotWhatsThis()));

  _buttonOK = new QPushButton(tr("OK / Save"), this);
  connect(_buttonOK, SIGNAL(clicked()), this, SLOT(slotOK()));

  _buttonCancel = new QPushButton(tr("Cancel"), this);
  connect(_buttonCancel, SIGNAL(clicked()), this, SLOT(close()));

  QHBoxLayout* buttonLayout = new QHBoxLayout;
  buttonLayout->addWidget(_buttonWhatsThis);
  buttonLayout->addStretch(1);
  buttonLayout->addWidget(_buttonOK);
  buttonLayout->addWidget(_buttonCancel);

  QVBoxLayout* mainLayout = new QVBoxLayout(this);
  mainLayout->addLayout(grid);
  mainLayout->addLayout(buttonLayout);

  _reqcRnxVersion->setWhatsThis(tr("<p>Select version number of emerging new RINEX file.</p><p>When converting RINEX Version 2 to RINEX Version 3 Observation files, the tracking mode or channel information (signal attribute, see RINEX Version 3 document) in the (last character out of the three characters) observation code is left blank if unknown.</p><p>When converting RINEX Version 3 to RINEX Version 2 the mapping of observations follows a 'Signal priority list' with signal attributes as defined in RINEX Version 3.</p>")); 
  _reqcUseObsTypes->setWhatsThis(tr("<p>This option lets you limit the RINEX output to specific observation types. Examples:</p><p><ul><li>G:C1C G:L1C R:C1C R:C1P S:C1C C:C1I C:L1I E:C1X E:L1X<br>(Valid for output of RINEX Version 3.)</li><li>C1 L2 L5<br>(Valid for output of RINEX Version 2 with mapping of Version 3 signals to Version 2 according to 'Version 2 Signal Priority'.)</li></ul></p><p>Default is an empty option field, meaning that the RINEX output file contains all observations made available through RINEX input file."));
  _reqcSampling->setWhatsThis(tr("<p>Select sampling rate of emerging new RINEX observation file.</p><p>'0 sec' means that observations from all epochs in the RINEX input file will become part of the RINEX output file.</p>"));
  _reqcStartDateTime->setWhatsThis(tr("<p>Specify begin of emerging new RINEX observation file.</p>"));
  _reqcEndDateTime->setWhatsThis(tr("<p>Specify end of emerging new RINEX observation file.</p>"));
  _reqcOldMarkerName->setWhatsThis(tr("<p>Enter old marker name in RINEX observation file.</p><p>Default is an empty option field.</p>"));
  _reqcNewMarkerName->setWhatsThis(tr("<p>Enter new marker name in RINEX observation file.</p><p>If option 'Old Marker Name' is either left blank or its contents is specified as given in the RINEX input file, then the marker name in the RINEX output file will be specified by 'New Marker Name'</p><p>Default is an empty option field, meaning that the contents of the marker name data field in the RINEX file will not be changed.</p>"));
  _reqcOldAntennaName->setWhatsThis(tr("<p>Enter old antenna name in RINEX observation file.</p><p>Default is an empty option field.</p>"));
  _reqcNewAntennaName->setWhatsThis(tr("<p>Enter new antenna name in RINEX observation file.</p><p>If option 'Old Antenna Name' is either left blank or its contents is specified as given in the RINEX input file, then the antenna name in the RINEX output file will be specified by 'New Antenna Name'</p><p>Default is an empty option field, meaning that the contents of the antenna name data field in the RINEX file will not be changed.</p>"));
  _reqcOldReceiverName->setWhatsThis(tr("<p>Enter old receiver name in RINEX observation file.<p>Default is an empty option field.</p></p>"));
  _reqcNewReceiverName->setWhatsThis(tr("<p>Enter new receiver name in RINEX observation file.</p><p>If option 'Old Receiver Name' is either left blank or its contents is specified as given in the RINEX input file, then the receiver name in the RINEX output file will be specified by 'New Receiver Name'</p><p>Default is an empty option field, meaning that the contents of the receiver name data field in the RINEX file will not be changed.</p>"));
  _reqcComment->setWhatsThis(tr("<p>Specifying a comment line text to be added to the emerging new RINEX file header is an option. Any introduction of newline specification '\\n' in this enforces the beginning of a further comment line. The  comment line(s) will be added to the header after the 'PGM / RUN BY / DATE' record.</p><p>Default is an empty option field meaning that no additional comment line is added to the RINEX header.</p>"));
  _reqcRunBy->setWhatsThis(tr("<p>Specify a 'RUN BY' string to be included in the emerging new RINEX file header.</p><p>Default is an empty option field meanig the operator's user ID is used as 'RUN BY' string.</p>"));
  _reqcV2Priority->setWhatsThis(tr("<p>Specify a priority list of characters defining signal attributes as defined in RINEX Version 3. Priorities will be used in post processing mode to map RINEX Version 3 observation files to Version 2. The underscore character '_' stands for undefined attributes. A question mark '?' can be used as wildcard which represents any one character.</p><p>Default is priority list 'CWPX_?'.</p>"));
}

// Destructor
////////////////////////////////////////////////////////////////////////////
reqcDlg::~reqcDlg() {
  delete _buttonOK;
  delete _buttonCancel;
  delete _buttonWhatsThis;
}

// Accept the Options
////////////////////////////////////////////////////////////////////////////
void reqcDlg::slotOK() {
  saveOptions();
  done(0);
}

// Whats This Help
////////////////////////////////////////////////////////////////////////////
void reqcDlg::slotWhatsThis() {
  QWhatsThis::enterWhatsThisMode();
}

// Close Dialog gracefully
////////////////////////////////////////////////////////////////////////////
void reqcDlg::closeEvent(QCloseEvent* event) {

  int iRet = QMessageBox::question(this, "Close", "Save Options?", 
                                   QMessageBox::Yes, QMessageBox::No,
                                   QMessageBox::Cancel);

  if      (iRet == QMessageBox::Cancel) {
    event->ignore();
    return;
  }
  else if (iRet == QMessageBox::Yes) {
    saveOptions();
  }

  QDialog::closeEvent(event);
}

// Save Selected Options
////////////////////////////////////////////////////////////////////////////
void reqcDlg::saveOptions() {

  bncSettings settings;

  settings.setValue("reqcRnxVersion"     , _reqcRnxVersion->currentText());    
  settings.setValue("reqcSampling"       , _reqcSampling->value());      
  settings.setValue("reqcV2Priority"     , _reqcV2Priority->text()); 
  settings.setValue("reqcStartDateTime"  , _reqcStartDateTime->dateTime().toString(Qt::ISODate)); 
  settings.setValue("reqcEndDateTime"    , _reqcEndDateTime->dateTime().toString(Qt::ISODate));   
  settings.setValue("reqcRunBy"          , _reqcRunBy->text()); 
  settings.setValue("reqcUseObsTypes"    , _reqcUseObsTypes->text()); 
  settings.setValue("reqcComment"        , _reqcComment->text()); 
  settings.setValue("reqcOldMarkerName"  , _reqcOldMarkerName->text()); 
  settings.setValue("reqcNewMarkerName"  , _reqcNewMarkerName->text()); 
  settings.setValue("reqcOldAntennaName" , _reqcOldAntennaName->text());
  settings.setValue("reqcNewAntennaName" , _reqcNewAntennaName->text());
  settings.setValue("reqcOldReceiverName", _reqcOldReceiverName->text());
  settings.setValue("reqcNewReceiverName", _reqcNewReceiverName->text());
}

//  Reqc Text Changed
////////////////////////////////////////////////////////////////////////////
void reqcDlg::slotReqcTextChanged(){

  if (sender() == 0 || sender() == _reqcRnxVersion) {
    if (_reqcRnxVersion->currentText() == "2") {
      _reqcV2Priority->setStyleSheet("background-color: white");
      _reqcV2Priority->setEnabled(true);
    }
    else {
      _reqcV2Priority->setStyleSheet("background-color: lightGray");
      _reqcV2Priority->setEnabled(false);
    }
  }
}