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

ViewerInstructors::ViewerInstructors(ConnectorToServer* connectorToServer, QWidget *parent) :
    InstructorsView(connectorToServer, CommonView::TypeView::onlyView, parent),
    dlgRedactor(nullptr),
    flTryEditorInstructors(false),
    ui(new Ui::ViewerInstructors)
{
    ui->setupUi(this);

    connect(treeWidget, &QTreeWidget::currentItemChanged, this, &ViewerInstructors::on_treeWidgetCurrentItemChanged);

    ui->horizontalLayout_1->addWidget(treeWidget);

    //treeWidget->setSelectionMode(QAbstractItemView::NoSelection);

    preparationTreeWidget();
    setNotLoggedInVisible(true);

    ui->btnEditorInstructors->setVisible(false);

    connect(connectorToServer, &ConnectorToServer::sigTryBlockResult, this, &ViewerInstructors::slot_checkTryBlockResult);
}

ViewerInstructors::~ViewerInstructors()
{
    if(dlgRedactor)
    {
        dlgRedactor->close();
        delete dlgRedactor;
        dlgRedactor = nullptr;
    }
    delete ui;
}

void ViewerInstructors::setAuthComplited(bool authComplited)
{
    this->authComplited = authComplited;
    updateButtons();
}

void ViewerInstructors::deactivate()
{
    if(dlgRedactor)
    {
        dlgRedactor->close();
        delete dlgRedactor;
        dlgRedactor = nullptr;
    }

    flTryEditorInstructors = false;

    CommonView::deactivate();
    updateButtons();
}

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

        reSetHeadTreeWidget();
        slot_NeedUpdateUI(true, false);
    }
}

void ViewerInstructors::slot_receiveMessage(ClientMessage clientMessage)
{
    int id_instructor = clientMessage.fromId.toInt();

    mtxmapNewMsg.lock();
    mapNewMsg.insert(id_instructor, mapNewMsg.value(id_instructor) + 1);
    mtxmapNewMsg.unlock();

    slot_NeedUpdateUI(true, false);
}

void ViewerInstructors::slot_checkTryBlockResult(bool result, QString type)
{
    if(flTryEditorInstructors)
    {
        if(type == "EditorInstructors")
        {
            emit signal_needShowWait(false);

            if(result)
            {//Одобрено
                dialog_EditorInstructors();
            }
            else
            {//Отказ
                SpecMsgBox::WarningClose(this, tr("The server rejected your request to access instructors control.\nAnother instructor is managing instructors.\nPlease try again later."));
            }

            flTryEditorInstructors = false;
        }
    }
}

void ViewerInstructors::on_btnEditorInstructors_clicked()
{
    emit signal_needShowWait(true);

    flTryEditorInstructors = true;

    connectorToServer->sendQueryBlockAuth(true, "EditorInstructors");
}

void ViewerInstructors::on_treeWidgetCurrentItemChanged(QTreeWidgetItem *current, QTreeWidgetItem *previous)
{
    if(current == nullptr)
        return;

    //if(current->childCount() == 0)
    {//Выбран обучаемый
        QString login = current->text(ColumnsTreeUsers::clmn_Login);
        //if(login != "")
        {
            int newCurrentID = connectorToServer->getIdInstructorByLogin(login);

            //if(newCurrentID == lastCurrentID)
                //return;

            lastCurrentID = newCurrentID;

            mtxmapNewMsg.lock();
            if(mapNewMsg.contains(newCurrentID))
            {//Есть непрочитанные сообщения от него
                if(mapNewMsg.value(newCurrentID))
                {
                    for (int i = 0; i < ColumnsTreeUsers::clmn_count; i++)
                    {
                        current->setBackground(i, QBrush(Qt::GlobalColor::white));
                    }
                    mapNewMsg.take(newCurrentID);
                    current->setIcon(ColumnsTreeUsers::clmn_Messages, QIcon());
                    current->setText(ColumnsTreeUsers::clmn_Messages, "");
                }
            }
            mtxmapNewMsg.unlock();

            Q_EMIT signal_instructorSelected(newCurrentID);
        }
    }
}

void ViewerInstructors::updateButtons()
{
    if(adminMode && authComplited)
    {
        ui->btnEditorInstructors->setEnabled(true);
    }
    else
    {
        ui->btnEditorInstructors->setEnabled(false);
    }
}

void ViewerInstructors::dialog_EditorInstructors()
{
    dlgRedactor = new DialogRedactorInstructors(connectorToServer, adminMode, this);
    dlgRedactor->exec();

    if(dlgRedactor)
    {
        delete dlgRedactor;
        dlgRedactor = nullptr;
    }

    if(authComplited)
        loadInstructorsFromDB();

    connectorToServer->sendQueryBlockAuth(false, "EditorInstructors");    
}