#include <QMessageBox>
#include "instructorsandtraineeswidget.h"
#include "ui_instructorsandtraineeswidget.h"
#include "dialogauthorizationinstructor.h"

InstructorsAndTraineesWidget::InstructorsAndTraineesWidget(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::InstructorsAndTraineesWidget),
    adminMode(false)
{
    ui->setupUi(this);

    dbLMS = new DataBaseLMS();

    dataBaseTrainees = new DataBaseTrainees(dbLMS);
    dataBaseInstructors = new DataBaseInstructors(dbLMS);

    //Авторизация Инструктора (Администратора)
    while(! authorizationInstructor(this))
    {
        QMessageBox::warning(this, tr("Instructor authorization"), tr("Invalid login or password!"));
    };
    QMessageBox::information(this, tr("Instructor authorization"), tr("Successfully!"));

    m_viewerTrainees = new ViewerTrainees(dataBaseTrainees, adminMode);
    m_viewerInstructors = new ViewerInstructors(dataBaseInstructors, adminMode);

    ui->verticalLayout->addWidget(m_viewerTrainees);
    ui->verticalLayout->addWidget(m_viewerInstructors);

    m_viewerTrainees->setMinimumSize(800, 800);
    m_viewerInstructors->setMinimumSize(800, 300);
}

InstructorsAndTraineesWidget::~InstructorsAndTraineesWidget()
{
    delete m_viewerInstructors;
    delete m_viewerTrainees;
    delete dataBaseInstructors;
    delete dataBaseTrainees;
    delete dbLMS;
    delete ui;
}

bool InstructorsAndTraineesWidget::authorizationInstructor(QWidget* parent)
{
    DialogAuthorizationInstructor dlg(parent);
    dlg.setWindowTitle(tr("Instructor authorithation"));

    switch( dlg.exec() )
    {
    case QDialog::Accepted:
    {
        QString login = dlg.getLogin();
        QString password = dlg.getPassword();

        if(dataBaseInstructors->AuthorizationInstructor(login, password))
        {
            if(login == QStringLiteral("admin"))
                adminMode = true;
            return true;
        }
        //break;
    }
    case QDialog::Rejected:
        break;
    default:
        break;
    }

    return false;
}

bool InstructorsAndTraineesWidget::authorizationTrainee(QString login, QString password, QString learnClass = QStringLiteral(""), QString computer = QStringLiteral(""))
{
    return dataBaseTrainees->AuthorizationTrainee(login, password, learnClass, computer);
}

bool InstructorsAndTraineesWidget::deAuthorizationTrainee(QString login)
{
    return dataBaseTrainees->deAuthorizationTrainee(login);
}

bool InstructorsAndTraineesWidget::authorizationInstructor(QString login, QString password)
{
    return dataBaseInstructors->AuthorizationInstructor(login, password);
}

bool InstructorsAndTraineesWidget::deAuthorizationInstructor(QString login)
{
    return dataBaseInstructors->deAuthorizationInstructor(login);
}