#ifndef DIALOG_H
#define DIALOG_H

#include <QDialog>
#include <QDialogButtonBox>

class QBoxLayout;
class QPlainTextEdit;

namespace vnotex
{
    class Dialog : public QDialog
    {
        Q_OBJECT
    public:
        explicit Dialog(QWidget *p_parent = nullptr, Qt::WindowFlags p_flags = Qt::WindowFlags());

        void setDialogButtonBox(QDialogButtonBox::StandardButtons p_buttons,
                                QDialogButtonBox::StandardButton p_defaultButton = QDialogButtonBox::NoButton);

        QDialogButtonBox *getDialogButtonBox() const;

        enum class InformationLevel
        {
            Info,
            Warning,
            Error
        };

        void setInformationText(const QString &p_text, InformationLevel p_level = InformationLevel::Info);

        void appendInformationText(const QString &p_text);

        void clearInformationText();

        void setButtonEnabled(QDialogButtonBox::StandardButton p_button, bool p_enabled);

        // Dialog has completed but just stay the GUI to let user know information.
        void completeButStay();

        bool isCompleted() const;

    protected:
        virtual void acceptedButtonClicked();

        virtual void rejectedButtonClicked();

        virtual void resetButtonClicked();

        virtual void appliedButtonClicked();

        virtual void setCentralWidget(QWidget *p_widget);

        // Add @p_widget below the central widget.
        virtual void addBottomWidget(QWidget *p_widget);

        QBoxLayout *m_layout = nullptr;

        QWidget *m_centralWidget = nullptr;

    private:
        QPlainTextEdit *m_infoTextEdit = nullptr;

        QDialogButtonBox *m_dialogButtonBox = nullptr;

        bool m_completed = false;
    };
} // ns vnotex

#endif // DIALOG_H