#include <QApplication>
#include <QMainWindow>
#include <QDockWidget>
#include <QStyleFactory>
#include <QTextEdit>

struct MainWindow : public QMainWindow
{
    MainWindow(QWidget *parent = nullptr);
    void createDockWidget(const QString &title, Qt::DockWidgetArea area);
};

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
{
    // Set dock options for better behavior
    setDockOptions(QMainWindow::AllowTabbedDocks |
                   QMainWindow::AllowNestedDocks |
                   QMainWindow::GroupedDragging |
                   QMainWindow::AnimatedDocks);

    // Create dockable panels
    createDockWidget("Dock Panel 1", Qt::LeftDockWidgetArea);
    createDockWidget("Dock Panel 2", Qt::RightDockWidgetArea);
    createDockWidget("Dock Panel 3", Qt::TopDockWidgetArea);
    createDockWidget("Dock Panel 4", Qt::BottomDockWidgetArea);

    // Set window size and title
    resize(1600, 1200);
    setWindowTitle("Dockable Panels Example");
}

void MainWindow::createDockWidget(const QString &title, Qt::DockWidgetArea area)
{
    // Create the dockable panel
    QDockWidget *dockWidget = new QDockWidget(title, this);
    dockWidget->setObjectName(title);
    dockWidget->setAllowedAreas(Qt::AllDockWidgetAreas);
    dockWidget->setFeatures(QDockWidget::DockWidgetMovable |
                            QDockWidget::DockWidgetClosable |
                            QDockWidget::DockWidgetFloatable);

    QTextEdit *textEdit = new QTextEdit(dockWidget);
    textEdit->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
    dockWidget->setWidget(textEdit);

    // Add the dock widget to the main window
    addDockWidget(area, dockWidget);

    // Set minimum sizes to prevent complete collapse
    dockWidget->setMinimumWidth(100);
    dockWidget->setMinimumHeight(100);

    // Ensure docks are not floating initially
    dockWidget->setFloating(false);

    // Show the dock widget
    dockWidget->show();
}

int main(int argc, char* argv[])
{
    QApplication app(argc, argv);
    MainWindow mainWindow;
    mainWindow.show();
    return app.exec();
};