#include "mainwindow.h"
#include "ui_mainwindow.h"

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    QMenuBar *menuBar = new QMenuBar();
    m_menuFile = menuBar->addMenu("&File");
    m_openAction = new QAction("&Open");
    m_openAction->setStatusTip(tr("Open a document"));
    m_menuFile->addAction(m_openAction);
    m_menuFile->addSeparator();
    m_quitAction = new QAction("&Quit");
    m_quitAction->setShortcut(tr("CTRL+Q"));
    m_quitAction->setStatusTip(tr("Quit application"));
    m_menuFile->addAction(m_quitAction);

    connect(this->m_openAction, &QAction::triggered, this, &MainWindow::slotOpenAction);
    connect(this->m_quitAction, &QAction::triggered, qApp, &QApplication::quit);

    this->setMenuBar(menuBar);
    show();
}

MainWindow::~MainWindow()
{
    delete ui;

}

void MainWindow::slotOpenAction() {
    m_filename = QFileDialog::getOpenFileName(
            this, tr("Выберите файл"), "../", tr("PDF (*.pdf) ;; DOCX (*.docx) ;; XLSX (*.xlsx) ;; PPTX (*.pptx)"));
    if (m_filename != "") {
        qDebug() << "Close file!\n";
        closeFile();

        if (m_filename.endsWith(".pdf")) {
            openPDF(m_filename);
        } else if (m_filename.endsWith(".pptx")) {
            openPPTX(m_filename);
        } else if (m_filename.endsWith(".docx")) {
            openDOCX(m_filename);
        } else if (m_filename.endsWith(".xlsx")) {
            openXLSX(m_filename);
        }
    }
}

void MainWindow::closeFile() {
    if (axObj != nullptr) {
        QProcess process;
        QString strCmd;
        strCmd = "taskkill /im winword.exe /f";
        process.execute(strCmd);
        strCmd = "taskkill /im EXCEL.exe /f";
        process.execute(strCmd);
        strCmd = "taskkill /im POWERPNT.exe /f";
        process.execute(strCmd);
        strCmd = "taskkill /im AcroRd32.exe /f";
        process.execute(strCmd);
        process.close();
        axObj->close();
        axObj->clear();
        delete axObj;
        axObj = nullptr;
    }
}


void MainWindow::openPDF(QString &filename) {
    axObj = new QAxWidget(this);
    setCentralWidget(axObj);
    if(!axObj->setControl("Adobe PDF Reader"))
        QMessageBox::critical(this, "Error", "Make sure you have Adobe Reader (and its ActiveX) installed!");
    axObj->dynamicCall("LoadFile(QString)", filename);
}

void MainWindow::openPPTX(QString &filename) {
    axObj = new QAxWidget("Powerpoint.Application", this);
    setCentralWidget(axObj);
    if (axObj == nullptr)
    {
        return;
    }
    if (!axObj->setControl(filename))
    {
        return;
    }
    axObj->dynamicCall("LoadFile(const QString&)", filename);
    axObj->dynamicCall("SetVisible (bool Visible)", "true");
    axObj->setProperty("DisplayAlerts", false);
    axObj->setProperty("DisplayScrollBars", true);
    axObj->setGeometry(this->geometry());
    axObj->show();

    /* run slideshow */
    //        // Open parameter
    //        QList<QVariant> param_list;
    //        param_list.append(filename);
    //        param_list.append(1);
    //        param_list.append(1);
    //        param_list.append(0);
    //        // Open a template file
    //        QAxObject *presentations = axObj->querySubObject("Presentations");
    //        QAxObject *presentation = presentations->querySubObject("Open(const QString&,int,int,int)", param_list);
    //        // Start the slides
    //        QAxObject *slideshow = presentation->querySubObject("SlideShowSettings");
    //        slideshow->setProperty("RangeType", "ppShowAll");
    //        slideshow->dynamicCall("run()");

}

void MainWindow::openXLSX(QString &filename) {
    axObj = new QAxWidget("Excel.Application", this);
    setCentralWidget(axObj);
    if (axObj == nullptr)
    {
        return;
    }
    axObj->dynamicCall("SetVisible (bool Visible)", "false");
    axObj->setProperty("DisplayAlerts", false);
    axObj->setProperty("DisplayScrollBars", true); // Show scroll bar
    axObj->setGeometry(this->geometry());
    axObj->setControl(filename);
    axObj->show();
}
void MainWindow::openDOCX(QString &filename) {
    axObj = new QAxWidget("Word.Application", this);
    setCentralWidget(axObj);
    if (axObj == nullptr)
    {
        return;
    }
    axObj->dynamicCall("SetVisible (bool Visible)", "false");
    axObj->setFocusPolicy(Qt::StrongFocus);
    axObj->setProperty("DisplayAlerts", false);
    axObj->setProperty("DisplayHorizontalScrollBar", true); // Show scroll bar
    axObj->setGeometry(this->geometry());
    axObj->setControl(filename);
    axObj->show();
}