/**
* @RDE_HEADER@
* GUI Plugin for ParticipantManagement - ParticipantSearchDialog
* $Id$
* $HeadURL$
* $Author$
* Created by Patric Karwat, SLSE, 2016-06-13
*/

#include "participant_search_dialog.h"
#include "ui_participant_search_dialog.h"
#include <AdvancedSymbology/asb_data_plugin_interface.h>
#include <QTimer>


namespace ParticipantManagement
{
int ParticipantSearchDialog::s_preselectedParty = -1;
bool ParticipantSearchDialog::s_preselectedAllParticipants = true;

ParticipantSearchDialog::ParticipantSearchDialog(QWidget *parent)
  : LtsWidgets::LtsDialog(parent, LtsWidgets::ButtonCombination::CloseOnly)
  , m_model(nullptr)
  , m_equipNo(0)
  , m_dtc(nullptr)
  , m_ppmCbxIfc(nullptr)
  , m_ui(new Ui::ParticipantSearchDialog)
  , m_logger(getLogger("ParticipantSearchDialog"))
{
  m_ui->setupUi(this);
  m_ui->leEquipNo->setValidator(new QIntValidator(0, 100000, m_ui->leEquipNo));
  setUnchangeable();
  m_buttonBox->connectButton(LtsWidgets::DialogButton::Show, this, &ParticipantSearchDialog::onClicked);

  m_updateObjectIndicator = new QTimer(this);
  m_updateObjectIndicator->setSingleShot(true);
  m_updateObjectIndicator->setInterval(100);
  connect(m_updateObjectIndicator, &QTimer::timeout, this, &ParticipantSearchDialog::updateObjectIndicator);

  setOnlineHelpFilename(QStringLiteral("Situation-Find_Participant"));
}

ParticipantSearchDialog::~ParticipantSearchDialog()
{
  if (m_sitMapGuiIfc)
    m_sitMapGuiIfc->removeObjectIndicator();

  delete m_ui;
}

void ParticipantSearchDialog::retranslate()
{
  translate(m_ui, tr("Participant Search"));
  m_buttonBox->getButton(LtsWidgets::DialogButton::Show)->setText(tr("Show Participant Info"));
}

bool ParticipantSearchDialog::init(LtsSession::LtsSession *session,
                                   const std::shared_ptr<Interface::Dtc> &dtc,
                                   const std::shared_ptr<ForeignParticipantInfoGuiInterface> &ppmGuiIfc,
                                   const std::shared_ptr<OcSituationClient::ForeignParticipantInfoGuiInterface> &ppmOcGuiIfc)
{
  m_dtc = dtc;
  m_ppmGuiIfc = ppmGuiIfc;
  m_ocParticipantInfoIfc = ppmOcGuiIfc;

  if (!m_dtc)
    return false;

  if (!session->getForeignGuiInterface<ParticipantManagement::ForeignGuiComboboxInterface>(m_ppmCbxIfc))
    return false;

  if (!session->getForeignGuiInterface<SituationMap::ForeignGuiInterface>(m_sitMapGuiIfc))
    return false;

  std::shared_ptr<AdvancedSymbology::ForeignDataInterface> asbIfc;
  session->getForeignDataInterface<AdvancedSymbology::DataInterface>(asbIfc);

  m_ui->cbAll->setChecked(s_preselectedAllParticipants);

  m_model = new ParticipantEditModel(this, m_dtc, asbIfc);
  m_ui->tvParticipants->setModel(m_model);

  connect(m_ui->cbParty,
          static_cast<void (LtsWidgets::LtsComboBox::*)(int)>(&LtsWidgets::LtsComboBox::currentIndexChanged),
          this, &ParticipantSearchDialog::changeParty);

  QItemSelectionModel *selectionModel = m_ui->tvParticipants->selectionModel();
  connect(selectionModel, &QItemSelectionModel::selectionChanged,
          this, &ParticipantSearchDialog::slotLookup);

  connect(m_ui->tvParticipants, &QTreeView::doubleClicked,
          this, &ParticipantSearchDialog::onDoubleClicked);

  connect(m_ui->slEquipmentNumber, &QSlider::valueChanged, this, &ParticipantSearchDialog::slotLookup);
  connect(m_ui->pbLookup, &QPushButton::clicked, this, &ParticipantSearchDialog::slotLookup);
  connect(m_ui->leEquipNo, &QLineEdit::returnPressed, this, &ParticipantSearchDialog::slotLookup);
  connect(m_ui->cbAll, &QCheckBox::toggled, this, &ParticipantSearchDialog::changeParty);

  m_ppmCbxIfc->fillPartyComboBox(m_ui->cbParty, ForeignGuiComboboxInterface::CbxPartyFilter::All);
  const int idx = m_ui->cbParty->findData(s_preselectedParty);
  if (idx >= 0)
    m_ui->cbParty->setCurrentIndex(idx);

  changeParty();
  m_buttonBox->getButton(LtsWidgets::DialogButton::Show)->setEnabled(false);
  return true;
}

void ParticipantSearchDialog::slotLookup()
{
  //block all signals here
  QSignalBlocker blx2(m_ui->slEquipmentNumber);
  QSignalBlocker blx3(m_ui->leEquipNo);

  //set sliderposition to current value
  int newEquipNo = -1;

  if (qobject_cast<QSlider *>(sender()))
    newEquipNo = changeLabelText(m_ui->slEquipmentNumber->value());
  if (qobject_cast<QLineEdit *>(sender()) ||
      qobject_cast<QPushButton *>(sender()))
  {
    //get Number from
    newEquipNo = m_ui->leEquipNo->text().toInt();
  }
  if (qobject_cast<QItemSelectionModel *>(sender()))
  {
    newEquipNo = onSelectionChanged();
    //selection cleared (do we allow a deselct?)
    //    if (newEquipNo < 0 )
    //    {
    //      m_equipNo = newEquipNo;
    //      return;
    //    }
  }

  if (newEquipNo == m_equipNo)
    return;

  m_equipNo = newEquipNo;

  //set Label and update lineEdit
  if (m_equipNo > 0)
    m_ui->leEquipNo->setText(QString::number(m_equipNo));
  changeSliderPosition(m_equipNo);

  //finally enable show button if found
  m_buttonBox->getButton(LtsWidgets::DialogButton::Show)->setEnabled(m_participantMap.contains(m_equipNo));

  //function for itemselection
  auto cb = [this](const QModelIndex & idx)
  {
    m_ui->tvParticipants->setCurrentIndex(idx);
  };
  auto it = m_participantMap.find(m_equipNo);
  if (it == m_participantMap.end() && !qobject_cast<QItemSelectionModel *>(sender()))
  {
    m_ui->tvParticipants->setCurrentIndex(QModelIndex());
    return;
  }
  m_model->selectItemByParticipantId(it.value(), cb);


  // update ObjectIndicator:
  if (m_updateObjectIndicator)
    m_updateObjectIndicator->start();  // start is restart
}

void ParticipantSearchDialog::updateObjectIndicator()
{
  if (!m_sitMapGuiIfc)
    return;

  int participantId = m_participantMap.value(m_equipNo, -1);

  if (participantId >= 0)
    m_sitMapGuiIfc->objectIndicatorToParticipant(participantId);
  else
    m_sitMapGuiIfc->removeObjectIndicator();
}

void ParticipantSearchDialog::enterEvent(QEvent *e)
{
  BaseClass::enterEvent(e);
  updateObjectIndicator();
}

void ParticipantSearchDialog::leaveEvent(QEvent *e)
{
  BaseClass::leaveEvent(e);
  // to early, remove obj at dtor
//  if (m_sitMapGuiIfc)
//    m_sitMapGuiIfc->removeObjectIndicator();
}


//private

int ParticipantSearchDialog::onSelectionChanged()
{
  QModelIndex index = m_ui->tvParticipants->currentIndex();

  //finally enable show button
  m_buttonBox->getButton(LtsWidgets::DialogButton::Show)->setEnabled(true);

  ParticipantManagement::ParticipantData data;
  data = m_model->getParticipantData(index);
  if (!data.equipmentNumber().is_set())
    return -1;

  return data.equipmentNumber().get();
}

void ParticipantSearchDialog::onDoubleClicked()
{
  QModelIndex index = m_ui->tvParticipants->currentIndex();

  ParticipantManagement::ParticipantData data;
  data = m_model->getParticipantData(index);

  if (m_ppmGuiIfc)
    m_ppmGuiIfc->showParticipantInfoWindow(data.id());
  if (m_ocParticipantInfoIfc)
    m_ocParticipantInfoIfc->showOcParticipantInfoWindow(data.id());
}

void ParticipantSearchDialog::clearSelections()
{
  changeSliderPosition(-1);
  m_ui->leEquipNo->clear();
  m_equipNo = 0;
  m_ui->tvParticipants->setCurrentIndex(QModelIndex());
  m_buttonBox->getButton(LtsWidgets::DialogButton::Show)->setEnabled(false);
}

//Slots
void ParticipantSearchDialog::changeParty()
{
  s_preselectedAllParticipants = m_ui->cbAll->isChecked();
  if (m_ui->cbAll->isChecked())
  {
    m_ui->cbParty->setEnabled(false);
    m_ui->tvParticipants->setEnabled(false);
    m_model->resetModel();
    fillMapFromDtc();
  }
  else
  {
    m_ui->cbParty->setEnabled(true);
    m_ui->tvParticipants->setEnabled(true);
    int partyId = m_ui->cbParty->currentData().toInt();
    s_preselectedParty = partyId;
    m_model->onReinitModel(partyId);
    m_ui->tvParticipants->expandAll();
    fillParticipantMapFromTree();
  }

  m_ui->slEquipmentNumber->setRange(0, m_participantMap.size() - 1);
  clearSelections();
}

void ParticipantSearchDialog::fillMapFromDtc()
{
  m_participantMap.clear();
  auto cb = [this](const Participant & data)
  {
    if (data.equipmentNumber().is_set())
      m_participantMap.insert(data.equipmentNumber().get(), data.id());
  };
  m_dtc->participants(cb);
}

int ParticipantSearchDialog::changeLabelText(int value)
{
  if (value < 0 || value >= m_participantMap.size())
    return -1;

  auto it = m_participantMap.begin();
  it += value;
  int newEqNr = it.key();

  m_ui->lblEquipmentNumber->setText(QString::number(newEqNr));
  m_ui->leEquipNo->setText(QString::number(newEqNr));
  return newEqNr;
}

void ParticipantSearchDialog::changeSliderPosition(int equipNo)
{
  int i = 0;
  int pos = -1;
  for (auto it = m_participantMap.cbegin(); it != m_participantMap.cend(); ++it)
  {
    if (equipNo == it.key())
    {
      pos = i;
      break;
    }
    i++;
  }

  if (pos >= 0)
  {
    m_ui->lblEquipmentNumber->setText(QString::number(equipNo));
    m_ui->slEquipmentNumber->setSliderPosition(pos);
  }
  else
  {
    m_ui->slEquipmentNumber->setSliderPosition(-1);
    m_ui->lblEquipmentNumber->setText(tr("Not found"));
  }
}

void ParticipantSearchDialog::fillParticipantMapFromTree()
{
  m_participantMap.clear();

  fillParticipantMapFromTree(QModelIndex());
}

void ParticipantSearchDialog::fillParticipantMapFromTree(const QModelIndex &parent)
{
  const int rc = m_model->rowCount(parent);
  for (int row = 0; row < rc; ++row)
    fillParticipantMapFromTree(m_model->index(row, 0, parent));

  const ParticipantManagement::ParticipantData data(m_model->getParticipantData(parent));
  if (data.equipmentNumber().is_set())
    m_participantMap.insert(data.equipmentNumber().get(), data.id());
}


void ParticipantSearchDialog::onClicked()
{
  int participantId = m_participantMap.value(m_equipNo);

  if (!m_ui->cbAll->isChecked())
    onDoubleClicked();
  else
  {
    //ERROR_LOG(m_logger) << "ParticipantId: " << participantId

    if (m_ppmGuiIfc)
      m_ppmGuiIfc->showParticipantInfoWindow(participantId);
  }
}

} // namespace ParticipantManagement