/**
  * @RDE_HEADER@
  * ExerciseManangement - Exercise Overview Dialog
  * $Id$
  * $HeadURL$
  * $Author$
  *
  * Created by Mike Wille, SLSE, 2017-02-10
  */

#include "tln_cache_dialog.h"
#include "ui_tln_cache_dialog.h"

#include <QDateTime>

#include <QDebug>


namespace Timeline
{

TimelineCacheDialog::TimelineCacheDialog(QWidget *parent)
  : QDialog(parent)
  , m_ui(new Ui::TimelineCacheDialog)
{
  m_ui->setupUi(this);

  connect(m_ui->pbUncache, &QPushButton::clicked,
          this, [this]()
  {
    bool k = false;
    int index = m_ui->twCaches->item(m_ui->twCaches->selectionModel()->currentIndex().row(), 0)->text().toInt(&k);

    if (!k)
      return;

    emit signalUncache(index);
    close();
  });


  connect(m_ui->pbDelete, &QPushButton::clicked,
          this, [this]()
  {
    bool k = false;
    int index = m_ui->twCaches->item(m_ui->twCaches->selectionModel()->currentIndex().row(), 0)->text().toInt(&k);

    if (!k)
      return;

    emit signalDelete(index);
    close();
  });
}


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


void TimelineCacheDialog::addCache(const CacheRange &cr, const QString &indexString)
{
  int rowCount = m_ui->twCaches->rowCount();
  m_ui->twCaches->insertRow(rowCount);
  int row = m_ui->twCaches->rowCount() - 1;
  int c = 0;

  m_ui->twCaches->setItem(row, c++ /* pun not intended */, new QTableWidgetItem(indexString));

  QString hash(QStringLiteral("<%1:%2:%3>").arg(cr.start).arg(cr.end).arg(cr.events.count()));
  m_ui->twCaches->setItem(row, c++, new QTableWidgetItem(QString::number(qHash(hash), 16)));

  m_ui->twCaches->setItem(row, c++, new QTableWidgetItem(QStringLiteral("%1 (%2)").arg(QDateTime::fromMSecsSinceEpoch(cr.start).toString()).arg(cr.start)));
  m_ui->twCaches->setItem(row, c++, new QTableWidgetItem(QStringLiteral("%1 (%2)").arg(QDateTime::fromMSecsSinceEpoch(cr.end).toString()).arg(cr.end)));
  m_ui->twCaches->setItem(row, c++, new QTableWidgetItem(QString::number(cr.events.count())));
}


bool TimelineCacheDialog::init(const QVector<QPair<qint64, CacheRange>> &cachedRanges, const CacheRange &liveCache)
{
  m_ui->twCaches->setRowCount(0);

  int eventCount = 0;
  {
    int i = 0;
    for (auto it = cachedRanges.constBegin(); it != cachedRanges.constEnd(); ++it)
    {
      const CacheRange &cr = it->second;

      eventCount += cr.events.count();
      addCache(cr, QString::number(i));

      i++;
    }
  }

  addCache(liveCache, QStringLiteral("live")); // add live events from its own cache
  m_ui->lblEventCount->setText(QString::number(eventCount));


  for (int i = 0; i < m_ui->twCaches->columnCount(); i++)
  {
    m_ui->twCaches->resizeColumnToContents(i);
  }

  return true;
}

} // namespace Timeline