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

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

    dbLMS = new DataBaseLMS();

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

    //Авторизация Инструктора локальная (Администратора)
    authorizationInstructorLocal(this);

    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(1400, 700);
    m_viewerInstructors->setMinimumSize(1400, 400);
}

InstructorsAndTraineesWidget::~InstructorsAndTraineesWidget()
{
    deAuthorizationInstructor(loginInstructorLoggedIn);

    delete m_viewerInstructors;
    delete m_viewerTrainees;
    delete dataBaseInstructors;
    delete dataBaseTrainees;
    delete dbLMS;
    delete ui;
}

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

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

            if(dataBaseInstructors->AuthorizationInstructor(login, password))
            {
                loginInstructorLoggedIn = login;

                if(login == QStringLiteral("admin"))
                    adminMode = true;

                QMessageBox::information(parent, tr("Instructor authorization"), tr("Successfully!"));

                return true;
            }
            else
                QMessageBox::warning(parent, tr("Instructor authorization"), tr("Invalid login or password!"));

            break;
        }
        case QDialog::Rejected:
            return false;
        default:
            return false;
        }
    }
    while(true);

    return false;
}

bool InstructorsAndTraineesWidget::authorizationCompleted()
{
    if(loginInstructorLoggedIn == QStringLiteral(""))
        return false;
    else
        return true;
}

bool InstructorsAndTraineesWidget::authorizationTrainee(QString login, QString password, QString classroom_name, QString computer_name)
{
    return dataBaseTrainees->AuthorizationTrainee(login, password, classroom_name, computer_name);
}

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);
}