#include "messagepanel.h"

#include "toonzqt/menubarcommand.h"

#include "menubarcommandids.h"

#include "tapp.h"

#include "toonz/tscenehandle.h"

#include "mainwindow.h"

#include <qtextedit></qtextedit>

#include <qpainter></qpainter>

#include <qfontmetrics></qfontmetrics>

//==================================

//    Centered Text Widget class

//----------------------------------

class CenteredTextWidget final : public QWidget {

  QString m_text;

public:

  CenteredTextWidget(QWidget *parent = 0) : QWidget(parent) {}

  void setText(const QString &text) { m_text = text; }

protected:

  void paintEvent(QPaintEvent *) override {

    QPainter p(this);

    QFontMetrics fm    = p.fontMetrics();

    QString elidedText = fm.elidedText(m_text, Qt::ElideRight, width());

    qreal textWidth    = fm.horizontalAdvance(elidedText);

    p.drawText((width() - textWidth) * 0.5, (height() - fm.height()) * 0.5,

               elidedText);

  }

};

//==============================

//    MessagePanel methods

//------------------------------

/*! \class MessagePanel

                \brief MessagePanel class provides a pane to view a single,

   centered text message.

                Inherits \b TPanel.

*/

MessagePanel::MessagePanel(QWidget *parent) : TPanel(parent) {

  setPanelType("Message");

  setWindowTitle("Message");

  m_messageBox = new CenteredTextWidget(this);

  setWidget(m_messageBox);

}

//-----------------------------------------------------------------------------

MessagePanel::~MessagePanel() {}

//-----------------------------------------------------------------------------

void MessagePanel::setViewType(int viewType) { m_viewType = viewType; }

//-----------------------------------------------------------------------------

int MessagePanel::getViewType() { return m_viewType; }

//-----------------------------------------------------------------------------

void MessagePanel::setPoolIndex(int poolIndex) { m_poolIndex = poolIndex; }

//-----------------------------------------------------------------------------

int MessagePanel::getPoolIndex() const { return m_poolIndex; }

//-----------------------------------------------------------------------------

void MessagePanel::setMessage(QString text) { m_messageBox->setText(text); }

//=============================================================================

/*! \class LogPanel

                \brief The LogPanel class provide a pane to log text messages in

   a QTextEdit document.

                Inherits \b TPanel.

*/

LogPanel::LogPanel(QWidget *parent, Qt::WindowFlags flags)

    : TPanel(parent), TLogger::Listener() {

  TLogger::instance()->addListener(this);

  TLogger::instance()->clearMessages();

  setPanelType("Log");

  setIsMaximizable(false);

  setWindowTitle("Log");

  m_messageBox = new QTextEdit(this);

  m_messageBox->setObjectName("LogPanel");

  m_messageBox->setReadOnly(true);

  m_messageBox->setMinimumSize(200, 150);

  setWidget(m_messageBox);

  connect(TApp::instance()->getCurrentScene(), SIGNAL(sceneSwitched()), this,

          SLOT(clear()));

}

//-----------------------------------------------------------------------------

LogPanel::~LogPanel() { TLogger::instance()->removeListener(this); }

//-----------------------------------------------------------------------------

void LogPanel::onLogChanged() {

  TLogger *logger  = TLogger::instance();

  int messageCount = logger->getMessageCount();

  if (!messageCount) return;

  TLogger::Message message  = logger->getMessage(messageCount - 1);

  TLogger::MessageType type = message.getType();

  m_messageBox->moveCursor(QTextCursor::End);

  QString strCount;

  ;

  m_messageBox->insertPlainText(strCount.setNum(messageCount) + QString("> "));

  if (type == TLogger::Debug) {

    m_messageBox->setTextColor(Qt::blue);

    m_messageBox->insertPlainText(QString("Debug: "));

  } else if (type == TLogger::Info) {

    m_messageBox->setTextColor(QColor(0, 200, 0));

    m_messageBox->insertPlainText(QString("Info: "));

  } else if (type == TLogger::Warning) {

    m_messageBox->setTextColor(QColor(255, 200, 0));

    m_messageBox->insertPlainText(QString("Warning: "));

  } else if (type == TLogger::Error) {

    m_messageBox->setTextColor(Qt::red);

    m_messageBox->insertPlainText(QString("Error: "));

  }

  m_messageBox->setTextColor(Qt::black);

  m_messageBox->insertPlainText(QString::fromStdString(message.getText()) +

                                QString("\n"));

}

//-----------------------------------------------------------------------------

/*! Clear panel text box from all messages.

 */

void LogPanel::clear() {

  TLogger::instance()->clearMessages();

  m_messageBox->clear();

}

//=============================================================================

// OpenFloatingLogPanel

class OpenFloatingLogPanel final : public MenuItemHandler {

public:

  OpenFloatingLogPanel() : MenuItemHandler(MI_OpenMessage) {}

  void execute() override {

    TMainWindow *currentRoom = TApp::instance()->getCurrentRoom();

    if (currentRoom) {

      QList<tpanel *=""> list = currentRoom->findChildren<tpanel *="">();</tpanel></tpanel>

      for (int i = 0; i < list.size(); i++) {

        TPanel *pane = list.at(i);

        // If the pane is hidden, floating and have the same name

        if (pane->isHidden() && pane->isFloating() &&

            pane->getPanelType() == "Message") {

          pane->show();

          pane->raise();

          return;

        }

      }

      TPanel *pane = TPanelFactory::createPanel(currentRoom, "Message");

      pane->setFloating(true);

      pane->show();

      pane->raise();

    }

  }

} openFloatingLogPanelCommand;