/**
  * @RDE_HEADER@
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by Philipp Last, NLSE, 2018-01-11
  */

#include "evl_comments.h"
#include "ui_evl_comments.h"
#include "evl_comment_model.h"

#include <LtsSession/lts_session_data.h>
#include <PluginInterfaces/data_plugin_interface.h>

#include <QKeyEvent>

namespace Evaluations
{
EvlCommentsView::EvlCommentsView(const std::shared_ptr<Interface::Dtc> &evlDtc,
                                 const std::shared_ptr<OperatorManagement::Interface::Dtc> &opmDtc,
                                 QWidget *parent)
  : LtsWidgets::LtsDialog(parent, LtsWidgets::ButtonCombination::CloseOnly),
    m_ui(new Ui::EvlCommentsDialog),
    m_evlDtc(evlDtc),
    m_opmDtc(opmDtc),
    m_logger(getLogger("EvlComments::EvlCommentsView"))
{
  m_ui->setupUi(this);

  setOnlineHelpFilename(QStringLiteral("Situation-Display_O-C_Evaluations"));

  m_ui->m_tableComments->setSelectionMode(QAbstractItemView::SingleSelection);
  connect(m_ui->m_tableComments, &LtsDataView::LtsDataView::signalDoubleClicked, this, &EvlCommentsView::onLtsDataView_DoubleClicked);

  m_model = new EvlCommentDataViewModel(this);
  m_proxyModel = new EvlCommentDataViewProxyModel(this);
  m_proxyModel->setSourceModel(m_model);
  m_ui->m_tableComments->setModel(m_proxyModel);

  m_ui->m_tableComments->installEventFilter(this);

  m_buttonBox->getButton(LtsWidgets::DialogButton::Ok)->hide();
  m_buttonBox->getButton(LtsWidgets::DialogButton::Apply)->hide();

  // Get historical comments
  auto cb = [this](const Evaluations::EvaluationComment & c)
  {
    insertComment(c);
  };
  m_evlDtc->evaluationComments(cb);

  // Subscribe for new comments
  connect(m_evlDtc.get(), &Evaluations::Interface::Dtc::evaluationCommentChanged, this, &EvlCommentsView::onCommentChanged, Qt::UniqueConnection);
}


EvlCommentsView::~EvlCommentsView()
{
  delete m_ui;
}


void EvlCommentsView::retranslate()
{
  translate(m_ui, tr("Display O/C Evaluations"));
}


bool EvlCommentsView::eventFilter(QObject *object, QEvent *event)
{
  if (object == m_ui->m_tableComments)
  {
    if (event->type() == QEvent::KeyPress)
    {
      QKeyEvent *pKeyEvent = static_cast<QKeyEvent *>(event);
      // Enter: Enter on numpad
      if (pKeyEvent->key() == Qt::Key_Return || pKeyEvent->key() == Qt::Key_Enter)
        onLtsDataView_DoubleClicked();
    }
  }

  return LtsWidgets::LtsDialog::eventFilter(object, event);
}

void EvlCommentsView::tableColumnOrganiserSetting()
{
  //LtsColumnOrganiser
  m_ui->m_tableComments->setColumnsOrganiserEnabled(identifier(), true);
}


void EvlCommentsView::onLtsDataView_DoubleClicked()
{
  const QModelIndex idx = m_ui->m_tableComments->currentIndex();

  if (idx.row() >= 0)
  {
    Evaluations::CommentTuple row = m_model->getRowData(idx.row());
    LtsWidgets::LtsMessageDialog::showMessage(this, tr("Comment:") + QStringLiteral("\n") + row.m_text);
  }
}


void EvlCommentsView::onCommentChanged(const EvaluationComment &data, DataModification modType)
{
  switch (modType)
  {
  case DataModification::eAdded:
    insertComment(data);
    break;

  default:
    break;
  }
}



bool EvlCommentsView::insertComment(const Evaluations::EvaluationComment &c)
{
  QString strSenderOperatorName, strReceiverOperatorName;

  OperatorManagement::User sender = m_opmDtc->user(c.senderOperatorId());
  strSenderOperatorName = QString::fromStdString(sender.name());

  if (c.receiverOperatorId().is_set())
  {
    // Add only if receiver id matches to the current operator!
    OperatorManagement::User loggedInOperator = m_opmDtc->user(LtsSessionData::LtsSessionData::getInstance()->getOperatorId());

    if (c.receiverOperatorId().get() != loggedInOperator.id())
      return false;

    OperatorManagement::User receiver = m_opmDtc->user(c.receiverOperatorId().get());
    strReceiverOperatorName = QString::fromStdString(receiver.name());
  }

  CommentTuple t;
  t.m_commentId = c.id();
  t.m_timestamp = QDateTime::fromMSecsSinceEpoch(c.ts());
  t.m_sender = strSenderOperatorName;
  t.m_receiver = strReceiverOperatorName;
  t.m_text = QString::fromStdString(c.text());
  t.m_hierarchy = QString::fromStdString(c.hierarchy());

  return m_model->insertRow(t);
}
}