/**
  * @RDE_HEADER@
  * ScriptChooser Payload UI
  * $Id$
  * $HeadURL$
  * $Author$
  *
  * Created by Mike Wille, SLSE, 2017-03-21
  */

#include "script_chooser.h"
#include "ui_script_chooser.h"

#include <ConnectDialog/connect_dialog_nt.h>
#include <LtsDataView/search_model.h>
#include <LtsSession/lts_session_data.h>
#include <LtsWidgets/lts_global_wait_dialog.h>
#include <LtsWidgets/lts_message_dialog.h>
#include <Plugins/PresentationManagement/Gui/Common/pre_model.h>
#include <QMessageBox>
#include <QCloseEvent>
#include <QTimer>


namespace PresentationManagement
{

ScriptChooser::ScriptChooser(const std::shared_ptr<Interface::Dtc> &dtc,
                             const std::shared_ptr<PresentationManagement::Interface::Ftc> &ftc,
                             const std::shared_ptr<OperatorManagement::Interface::Dtc> &opmDtc,
                             bool isPlayerMode,
                             bool isImportDialog,
                             QWidget *parent)
  : LtsWidgets::LtsFramelessDialog(parent, LtsWidgets::Behaviour::Modal)
  , m_model(new PresentationManagementDialogModel(this))
  , m_proxy(new PresentationManagementDialogProxyModel(this))
  , m_selected(false)
  , m_isImportDialog(isImportDialog)
  , m_ui(new Ui::ScriptChooser)
  , m_logger(getLogger(QStringLiteral("ScriptChooser")))
  , m_ftc(ftc)
  , m_requestHelper(new LtsUtils::RequestHelper(this))
{
  if (!m_isImportDialog)
    LtsWidgets::LtsGlobalWaitDialog::getInstance()->setVisible(false);

  m_ui->setupUi(this);
  setWindowFlags( Qt::Dialog | Qt::WindowStaysOnTopHint | Qt::CustomizeWindowHint | Qt::WindowTitleHint ); // hints..

  // only show Valid (= not deleted) scripts
  auto predicate = [](const PresentationManagement::Presentation & p)
  {
    return (!p.isDeleted() && p.fileStatus() == FileStatus::Valid);
  };
  m_model->initModel(dtc, opmDtc, predicate);
  m_proxy->setSourceModel(m_model);

  m_ui->ltsDataView->seamless();
  //  m_ui->ltsDataView->selectCustomView();
  m_ui->ltsDataView->setSelectionMode(QAbstractItemView::SelectionMode::SingleSelection);
  m_ui->ltsDataView->setModel(m_proxy);//, [this]() { return new CustomViewExercise(this); });  TODO: custom widgets!
  int operatorId = LtsSessionData::LtsSessionData::getInstance()->getOperatorId();
  bool bSetOperator = m_ui->ltsDataView->setInitialSearchContent(
                        PresentationManagementDialogModel::Columns::Operator, QVariant(LtsSessionData::LtsSessionData::getInstance()->getOperatorId())
                        );
  if (!bSetOperator)
    WARNING_LOG(m_logger) << "could not set initial operator id to " << operatorId;

  connect(m_ui->ltsDataView, &LtsDataView::LtsDataView::signalSelectionChanged,
          this, &ScriptChooser::onEnaDisa, Qt::QueuedConnection);
  connect(m_ui->ltsDataView, &LtsDataView::LtsDataView::signalDoubleClicked,
          this, &ScriptChooser::onScriptSelected, Qt::QueuedConnection);
  connect(m_ui->ltsDataView, &LtsDataView::LtsDataView::signalEnterPressed,
          this, &ScriptChooser::onScriptSelected, Qt::QueuedConnection);
  connect(m_ui->pbSelect, &QPushButton::clicked,
          this, &ScriptChooser::onScriptSelected, Qt::QueuedConnection);
  connect(m_ui->pbDeleteScript, &QPushButton::clicked,
          this, &ScriptChooser::onDeleteScript, Qt::QueuedConnection);

  setSelectorMode(isPlayerMode); // has to be called BEFORE manually setVisible on the buttons!

  if (!isImportDialog)
  {
    connect(m_ui->pbQuit, &QPushButton::clicked,
            this, &ScriptChooser::signalQuit, Qt::QueuedConnection);
  }
  else
  {
    m_ui->pbNewScript->setVisible(false);
    m_ui->pbEditQuit->setVisible(false);
  }

  connect(m_ui->pbQuit, &QPushButton::clicked, this, [this]()
  {
    LtsWidgets::LtsGlobalWaitDialog::getInstance()->setVisible(true);
    m_close = true;
    close();
  });

  connect(m_ui->pbNewScript, &QPushButton::clicked,
          this, &ScriptChooser::signalNewScript, Qt::QueuedConnection);

  connect(m_ui->pbEditQuit, &QPushButton::clicked,
          this, &ScriptChooser::signalEditQuit);

#ifndef LTS_DEBUG
  m_ui->ltsDataView->hideColumn(PresentationManagementDialogModel::Id);
#endif
  m_ui->ltsDataView->setSortIndicator(PresentationManagementDialogModel::Name, Qt::AscendingOrder);

  if (!m_isImportDialog)
  {
    qint32 scriptId = LtsSessionData::LtsSessionData::getInstance()->getScriptId();

    if (scriptId == 0)
      return;

    LtsSessionData::LtsSessionData::getInstance()->setScriptId(0);

    if (scriptId < 0)
    {
      FATAL_LOG(m_logger) << "ScriptIdPreset " << scriptId << " is invalid!";
      Q_ASSERT(false);
      return;
    }

    bool isExistingScriptId = false;
    qint32 rowCounter;

    for (rowCounter = 0; rowCounter < m_model->rowCount(); ++rowCounter)
    {
      if (m_model->getRowData(rowCounter).id() == scriptId)
      {
        isExistingScriptId = true;
        break;
      }
    }

    if (scriptId < 0 || !isExistingScriptId)
    {
      FATAL_LOG(m_logger) << "ScriptIdPreset " << scriptId << " is invalid!";
      Q_ASSERT(false);
      return;
    }

    QTimer::singleShot(100, this, [this, rowCounter]()
    {
      const Presentation p = m_model->getRowData(rowCounter);

      if (p.id() <= 0)
        return;

      setEnabled(false);

      if (!m_isImportDialog)
        LtsWidgets::LtsGlobalWaitDialog::getInstance()->setVisible(true);

      emit signalSelectScript(p.id());
      m_close = true;
      close();
    });
  }
}


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


void ScriptChooser::reject()
{
  if (!m_selected && !m_isImportDialog /* do not quit session if this dialog is misused as import dialog for a running app */)
    emit signalQuit();

  QDialog::reject();
}

void ScriptChooser::onDeleteScript()
{
  int ret = QMessageBox::warning(this, tr("DELETE SCRIPT"),
                                 tr("Do you really want to delete the selected script?"),
                                 QMessageBox::Yes | QMessageBox::Cancel);
  if(ret == QMessageBox::Yes)
  {
    const QModelIndex idx = m_ui->ltsDataView->currentIndex();
    const Presentation pre = m_model->getRowData(idx.row());
    const FileStatus fs = FileStatus::Deleted;
    PresentationChangeStatusRequest req;

    req.id(pre.id());
    req.fileStatus(fs);
    req.operatorId(LtsSessionData::LtsSessionData::getInstance()->getOperatorId());
    req.lastModified(QDateTime::currentMSecsSinceEpoch());
    DEBUG_LOG(m_logger) << "Changing status for presentation id = " << pre.id();

    m_requestHelper->startSingleRequest([this, req]()
    {
      return m_ftc->presentationChangeStatusRequest(PresentationChangeStatusRequest(req), this);
    });

    auto  srcIdx = m_ui->ltsDataView->proxyModel()->mapFromSource(idx);
    m_ui->ltsDataView->proxyModel()->removeRow(srcIdx.row());

    if (m_requestHelper->failed())
      ERROR_LOG(m_logger) << "Failed to change status for presentation-script_chooser";
  }

}
void ScriptChooser::onScriptSelected()
{
  if (m_isImportDialog)
  {
    connect(new LtsWidgets::LtsMessageDialogNew(this, tr("You are about to import the selected script to the currently open script.<br />"
                                                         "The import script will be inserted at the indicated position and moves all topics after the indicated position to after the to-be imported script's content.<br/>"
                                                         "Info: The indicated position is indicated by the light blue vertical line. Its position can be changed by clicking on a topic or by clicking at the desired position in the header (where the time texts are drawn on).<br />"
                                                         "This operation can't be reversed.<br />"
                                                         "<br />"
                                                         "Are you sure you want to import the selected script?<br />"
                                                         "Click yes to import the script.<br />"
                                                         "Click no to cancel this operation and don't import."), tr("Import script"), LtsWidgets::Behaviour::Modal, LtsWidgets::Button::Yes | LtsWidgets::Button::No),
            &LtsWidgets::LtsMessageDialogNew::yes,
            this, &ScriptChooser::onImportScript, Qt::QueuedConnection);

    return;
  }

  onImportScript();
}


void ScriptChooser::onImportScript()
{
  if (m_selected)
    return;

  m_selected = true;

  const QModelIndex idx = m_ui->ltsDataView->currentIndex();
  const Presentation p = m_model->getRowData(idx.row());

  if (p.id() <= 0)
    return;

  setEnabled(false);

  if (!m_isImportDialog)
    LtsWidgets::LtsGlobalWaitDialog::getInstance()->setVisible(true);

  emit signalSelectScript(p.id());
  m_close = true;
  close();
}


void ScriptChooser::onEnaDisa()
{
  m_ui->pbSelect->setEnabled(m_ui->ltsDataView->selectedRows().size() == 1);
  m_ui->pbDeleteScript->setEnabled(m_ui->ltsDataView->selectedRows().size() == 1);
}


void ScriptChooser::closeEvent(QCloseEvent *event)
{
  if (!m_close)
  {
    event->ignore();
    return;
  }

  if (!m_isImportDialog)
    LtsWidgets::LtsGlobalWaitDialog::getInstance()->setVisible(true);
}


void ScriptChooser::setSelectorMode(bool isPlayer)
{
  m_ui->pbNewScript->setVisible(!isPlayer);
  m_ui->pbEditQuit->setVisible(isPlayer);
}

} // namespace PresentationManagement