#include <QMessageBox>
#include "editorinstructors.h"
#include "viewerinstructors.h"
#include "ui_viewerinstructors.h"

ViewerInstructors::ViewerInstructors(InterfaceDataBaseLMS* db, bool adminMode, QWidget *parent) :
    InstructorsView(db, CommonView::TypeView::onlyView, adminMode, parent),
    ui(new Ui::ViewerInstructors)
{
    ui->setupUi(this);

    this->adminMode = adminMode;

    // Сделаем первоначальную инициализацию перевода для окна виджета
    qtLanguageTranslator.load(QString(QStringLiteral("translations/InstructorsAndTrainees_")) + QString(QStringLiteral("ru_RU")), QStringLiteral("."));
    qApp->installTranslator(&qtLanguageTranslator);

    preparationTreeWidget(ui->treeWidget);
    setNotLoggedInVisible(true);
    loadInstructorsFromDB();

    if(! this->adminMode)
        ui->btnEditorInstructors->setEnabled(false);
}

ViewerInstructors::~ViewerInstructors()
{
    delete ui;
}

void ViewerInstructors::setFilterInstructorLoggedIn(bool enabled)
{
    setNotLoggedInVisible(!enabled);
    loadInstructorsFromDB();
}

void ViewerInstructors::changeEvent(QEvent *event)
{
    // В случае получения события изменения языка приложения
    if (event->type() == QEvent::LanguageChange)
    {
        ui->retranslateUi(this);    // переведём окно заново

        reSetHeadTreeWidget();
        loadInstructorsFromDB();
    }
}

void ViewerInstructors::slot_LanguageChanged(QString language)
{
    qtLanguageTranslator.load(QString(QStringLiteral("translations/InstructorsAndTrainees_")) + language, QStringLiteral("."));
    qApp->installTranslator(&qtLanguageTranslator);
}

void ViewerInstructors::on_btnEditorInstructors_clicked()
{
    if(! adminMode)
    {
        QMessageBox::warning(this, tr("Attention!"),
                             tr("Only the Administrator has the right to edit instructors."));
        return;
    }

    EditorInstructors editorInstructors(dbLMS, adminMode);
    QDialog* dialog = new QDialog(this);
    QHBoxLayout *layout = new QHBoxLayout(dialog);
    layout->addWidget(&editorInstructors);
    dialog->setWindowTitle(tr("Editor of instructors"));
    dialog->setMinimumSize(1600, 800);
    dialog->exec();

    loadInstructorsFromDB();
}